10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year endedDecember 31, 2013

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from              to      

Commission file number 001-33912

Enterprise Bancorp, Inc.

(Exact name of registrant as specified in its charter)

Massachusetts	04-3308902
(State or other jurisdiction of	(IRS Employer Identification No.)
incorporation or organization)

222 Merrimack Street, Lowell, Massachusetts	01852
(Address of principal executive offices)	(Zip code)

Registrant’s telephone number, including area code

(978) 459-9000

Securities registered pursuant to Section 12(b) of the Exchange Act:

Common Stock, $0.01 par value per share	NASDAQ Global Market
(Title of each class)	(Name of exchange on which registered)

 Securities registered pursuant to Section 12(g) of the Exchange Act:

NONE

 (Title of Class)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  o Yes  ý No

Indicate by check mark if the registrant is not required to file pursuant to Section 13 or Section 15(d) of the Act.  o Yes  ý No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  ý Yes  o No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files)  ý Yes  o No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K(§229.405 of this chapter) is not contained herein, and will not be contained, to the best of the registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ý

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company.  See definition of “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act (Check one):

Large accelerated filer o	Accelerated filer x
Non-accelerated filer o (Do not check if smaller reporting company)	Smaller reporting company o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act)  o Yes  ý No

State the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid price and asked price of such common equity, as of the last business day of the registrant’s most recently completed second fiscal quarter: $134,603,520 ($18.49 per share) as of June 28, 2013

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date: March 3, 2014, Common Stock, par value $0.01, 10,036,489 shares outstanding

 DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s definitive proxy statement for its annual meeting of stockholders to be held on May 6, 2014 are incorporated by reference in Part III of this Form 10-K.

ENTERPRISE BANCORP, INC.

TABLE OF CONTENTS

		Page Number
	PART I
Item 1	Business	3
Item 1A	Risk Factors	22
Item 1B	Unresolved Staff Comments	31
Item 2	Properties	31
Item 3	Legal Proceedings	31
Item 4	Mine Safety Disclosures	31
	PART II
Item 5	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	32
Item 6	Selected Financial Data	35
Item 7	Management’s Discussion and Analysis of Financial Condition and Results of Operations	36
Item 7A	Quantitative and Qualitative Disclosures About Market Risk	66
Item 8	Financial Statements and Supplementary Data	68
Item 9	Changes In and Disagreements with Accountants on Accounting and Financial Disclosure	124
Item 9A	Controls and Procedures	124
Item 9B	Other Information	124
	Part III
Item 10	Directors, Executive Officers and Corporate Governance	124
Item 11	Executive Compensation	124
Item 12	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	124
Item 13	Certain Relationships and Related Transactions, and Director Independence	124
Item 14	Principal Accounting Fees and Services	124
	Part IV
Item 15	Exhibits, Financial Statement Schedules	125
	Signature page	128

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PART I

Item 1. Business

Organization

Enterprise Bancorp, Inc. (the “Company” or “Enterprise”) is a Massachusetts corporation organized in 1996, which operates as the parent holding company of Enterprise Bank and Trust Company referred to as Enterprise Bank (the “Bank”). Substantially all of the Company’s operations are conducted through the Bank.  The Bank, a Massachusetts trust company and state chartered commercial bank which commenced banking operations in 1989, has five wholly owned subsidiaries that are included in the Company’s consolidated financial statements:

• Enterprise Insurance Services, LLC, organized in 2000 in the state of Delaware for the purpose of engaging in insurance sales activities;

• Enterprise Investment Services, LLC, organized in 2000 in the state of Delaware for the purpose of offering non-deposit investment products and services, under the name of "Enterprise Investment Services", and

• Three Massachusetts security corporations, Enterprise Security Corporation (2005), Enterprise Security Corporation II (2007) and Enterprise Security Corporation III (2007), which hold various types of qualifying securities. The security corporations are limited to conducting securities investment activities that the Bank itself would be allowed to conduct under applicable laws.

Enterprise’s headquarters are located at 222 Merrimack Street in Lowell, Massachusetts.

The services offered through the Bank and its subsidiaries are managed as one strategic unit and represent the Company’s only reportable operating segment.

All material intercompany balances and transactions have been eliminated in consolidation.

Market Area

The Company’s primary market area is the Merrimack Valley and North Central regions of Massachusetts and Southern New Hampshire.  Enterprise has 22 full service branch banking offices located in the Massachusetts cities and towns of Acton, Andover, Billerica, Chelmsford, Dracut, Fitchburg, Lawrence, Leominster, Lowell, Methuen, Tewksbury, Tyngsboro and Westford; and in the New Hampshire towns of Derry, Hudson, Nashua, Pelham and Salem, which serve those cities and towns as well as the surrounding communities.

Management actively seeks to strengthen its market position by capitalizing on market opportunities to grow all business lines and the continued pursuit of organic growth and strategic expansion within existing and into neighboring geographic markets.

Products and Services

The Company principally is engaged in the business of attracting deposits from the general public and investing in loans and investment securities.  Through the Bank and its subsidiaries, the Company offers a range of commercial and consumer loan products, deposit and cash management products, investment advisory and wealth management, trust and insurance services.  Management continually examines new products and technologies in order to maintain a highly competitive mix of offerings and state of the art delivery channels in order to target product lines to customer needs. These products and services are outlined below.

Lending Products

• General

The Company specializes in lending to business entities, non-profit organizations, professionals and individuals. The Company’s primary lending focus is on the development of high quality commercial relationships achieved through active business development efforts, strong community involvement, long-term relationships with established commercial developers and focused marketing strategies.  Loans made to businesses include commercial mortgage loans, construction and land development loans, secured and unsecured commercial loans and lines of credit, and standby letters of credit.  The Company

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also originates equipment lease financing for businesses. Loans made to individuals include conventional residential mortgage loans, home equity loans and lines, residential construction loans on primary and secondary residences, and secured and unsecured personal loans and lines of credit.  The Company seeks to manage its loan portfolio to avoid concentration by industry or loan size to lessen its credit risk exposure.

Enterprise employs a seasoned commercial lending staff, with commercial lenders supporting each branch location.  An internal loan review function assesses the compliance of commercial loan originations with the Company’s internal policies and underwriting guidelines and monitors the ongoing quality of the loan portfolio. The Company also contracts with an external loan review company to review loans in the commercial loan portfolio on a pre-determined schedule, based on the type, size, rating, and overall risk of the loan.

The Company maintains internal residential origination and underwriting staff that originate residential loans and are responsible for compliance with residential lending regulations, consumer protection and internal policy guidelines. The Company contracts with an external loan review company to complete a monthly quality control review in accordance with secondary market underwriting requirements for residential mortgage loans sold and regulatory compliance monitoring. The sample reviewed is based on loan volume originated. Additionally, the Company's internal compliance department monitors the residential loan origination activity for regulatory compliance.

A management loan review committee, consisting of senior lending officers, loan review and accounting personnel is responsible for setting loan policy and procedures, as well as reviewing loans on the internal “watched asset list” and classified loan report. An internal credit review committee, consisting of senior lending officers and loan review personnel, meets to review loan requests related to borrowing relationships of certain dollar levels, as well as other borrower relationships recommended for discussion by committee members.

The Executive Committee of the Company’s Board of Directors (the "Board") approves loan relationships exceeding certain prescribed dollar limits.  A Loan Committee of the Board reviews current portfolio statistics, problem credits, construction loan reviews, watched assets, loan delinquencies, and the allowance for loan losses, as well as current market conditions and issues relating to the construction and real estate development industry and the reports from the external loan review company.  The Board’s Loan Committee is also responsible for approval of credit related charge-offs recommended by management.  Approved charge-offs are forwarded to the full Board for ratification.

At December 31, 2013, the Bank’s statutory lending limit, based on 20% of capital (capital stock plus surplus and undivided profits, but excluding other comprehensive income), to any individual borrower and related entities was approximately $32 million, subject to certain exceptions provided under applicable law.

See also “Risk Factors” contained in Item 1A, for further discussion on a variety of risks and uncertainties that may affect the Company’s loan portfolio.

• Commercial Real Estate, Commercial and Industrial, and Commercial Construction Loans

Commercial real estate loans include loans secured by both owner-use and non-owner occupied real estate.  These loans are typically secured by a variety of commercial and industrial property types, including one-to-four family and multi-family apartment buildings, office or mixed-use facilities, strip shopping centers, or other commercial properties, and are generally guaranteed by the principals of the borrower. Commercial real estate loans generally have repayment periods of approximately fifteen to twenty-five years. Variable interest rate loans have a variety of adjustment terms and indices, and are generally fixed for an initial period before periodic rate adjustments begin.

Commercial and industrial loans include seasonal revolving lines of credit, working capital loans, equipment financing (including equipment leases), and term loans. Also included in commercial and industrial loans are loans partially guaranteed by the U.S. Small Business Administration (SBA), and loans under various programs issued in conjunction with the Massachusetts Development Finance Agency and other agencies. Commercial and industrial credits may be unsecured loans and lines to financially strong borrowers, secured in whole or in part by real estate unrelated to the principal purpose of the loan, or secured by inventories, equipment, or receivables, and are generally guaranteed by the principals of the borrower.  Variable rate loans and lines in this portfolio have interest rates that are periodically adjusted, with loans generally having fixed initial periods.  Commercial and industrial loans have average repayment periods of one to seven years.

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Commercial construction loans include the development of residential housing and condominium projects, the development of commercial and industrial use property, and loans for the purchase and improvement of raw land.  These loans are secured in whole or in part by the underlying real estate collateral and are generally guaranteed by the principals of the borrowers.  The Company limits the amount of financing provided to any single developer for the construction of properties built on a speculative basis.  Funds for construction projects are disbursed as pre-specified stages of construction are completed.  Regular site inspections are performed, either by experienced construction lenders on staff or by independent outside inspection companies, at each construction phase, prior to advancing additional funds.  Commercial construction loans generally are variable rate loans and lines with interest rates that are periodically adjusted and generally have terms of one to three years.

From time to time, Enterprise participates with other banks in the financing of certain commercial projects.  In some cases, the Company may act as the lead lender, originating and servicing the loans, but participating out a portion of the funding to other banks.  In other cases, the Company may participate in loans originated by other institutions. In each case, the participating bank funds a percentage of the loan commitment and takes on the related risk. In each case in which the Company participates in a loan, the rights and obligations of each participating bank are divided proportionately among the participating banks in an amount equal to their share of ownership and with equal priority among all banks.  The balances participated out to other institutions are not carried as assets on the Company’s financial statements.  Loans originated by other banks in which the Company is the participating institution are carried in the loan portfolio at the Company’s pro rata share of ownership. The Company performs an independent credit analysis of each commitment and a review of the participating institution prior to participation in the loan.

Standby letters of credit are conditional commitments issued by the Company to guarantee the financial obligation or performance by a customer to a third party.  The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers.  If the letter of credit is drawn upon, a loan is created for the customer, generally a commercial loan, with the same criteria associated with similar commercial loans.

• Residential Loans

Enterprise originates conventional mortgage loans on one-to-four family residential properties.  These properties may serve as the borrower’s primary residence, or be vacation homes or investment properties.  Loan to value limits vary generally from 80% for adjustable rate and multi-family owner occupied properties, up to 97% for fixed rate loans on single family owner occupied properties, with mortgage insurance coverage required for loan-to-value ratios greater than 80% based on program parameters.  In addition, financing is provided for the construction of owner occupied primary and secondary residences.  Residential mortgage loans may have terms of up to 30 years at either fixed or adjustable rates of interest.  Fixed and adjustable rate residential mortgage loans are generally originated using secondary market underwriting and documentation standards.

Depending on the current interest rate environment, management projections of future interest rates and the overall asset-liability management program of the Company, management may elect to sell those fixed and adjustable rate residential mortgage loans which are eligible for sale in the secondary market, or hold some or all of this residential loan production for the Company’s portfolio. Mortgage loans are generally not pooled for sale, but instead, sold on an individual basis. Enterprise may retain or sell the servicing when selling the loans.  Loans sold are subject to standard secondary market underwriting and eligibility representations and warranties over the life of the loan, and are subject to an early payment default period covering the first four payments for certain loan sales. Loans classified as held for sale are carried as a separate line item on the balance sheet.

• Home Equity Loans and Lines of Credit

Home equity term loans are originated for one-to-four family residential properties with maximum combined loan to value ratios generally up to 80% of the assessed or appraised value of the property securing the loan. Home equity loan payments consist of monthly principal and interest based on amortization ranging from three to fifteen years. The rates may also be fixed for three to fifteen years.

The Company originates home equity revolving lines of credit for one-to-four family residential properties with maximum combined loan to value ratios generally up to 80% of the assessed or appraised value of the property securing the loan. Home equity lines generally have interest rates that adjust monthly based on changes in the Prime Rate, although minimum rates may be applicable. Some home equity line rates may be fixed for a period of time and then adjusted monthly thereafter. The payment schedule for home equity lines allows interest only payments for the first ten years of the lines. Generally, at the end of ten years, the line may be frozen to future advances, and principal plus interest payments are collected over a fifteen-year

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amortization schedule, or, for eligible borrowers meeting certain requirements, the line availability may be extended for an additional interest only period.

• Consumer Loans

Consumer loans primarily consist of secured or unsecured personal loans, energy efficiency financing programs in conjunction with Massachusetts public utilities, and overdraft protection lines on checking accounts extended to individual customers. The aggregate amounts of overdrawn deposit accounts are reclassified as loan balances.

• Credit Risk and Allowance for Loan Losses

Information regarding the Company’s credit risk and allowance for loan losses is contained in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” under the headings “Credit Risk/Asset Quality” and “Allowance for Loan Losses,” contained in the section “Financial Condition,” and under the heading “Allowance for Loan Losses” which is contained in the “Critical Accounting Estimates” section of Item 7.

Deposit Products

Deposits have traditionally been the principal source of the Company’s funds. Enterprise offers commercial checking, business and municipal savings accounts, term certificates of deposit (“CDs”), money market and business sweep accounts, Interest on Lawyers Trust Accounts (or "IOLTA's"), and escrow management accounts, as well as checking and Simplified Employee Pension (“SEP”) accounts to employees of our business customers.  A broad selection of competitive retail deposit products are also offered, including personal checking accounts earning interest or reward points, savings accounts, money market accounts, individual retirement accounts (“IRA”) and CDs. Terms on CDs typically range from one month to forty-eight months. As a member of the Federal Deposit Insurance Corporation (the “FDIC”), the Bank's depositors are provided deposit protection up to the maximum FDIC insurance coverage limits.

In addition to the deposit products noted above, the Company also provides customers the ability to allocate money market deposits and CDs to networks of reciprocating FDIC insured banks. Money market deposits are placed into overnight deposits and CDs are placed into selected term deposits via nationwide networks in increments that are covered by FDIC insurance.  This allows the Company to offer enhanced FDIC insurance coverage on larger deposit balances by placing the “excess” funds in FDIC insured accounts or term certificates issued by other banks participating in the networks. In exchange, the other institutions place dollar-for-dollar matching reciprocal and insurable deposits with the Company via the networks.  Essentially, the equivalent of the original deposit comes back to the Company and is available to fund local loan growth. The original funds placed into the networks are not carried as deposits on the Company's balance sheet, however the network's reciprocal dollar deposits are carried as non-brokered deposits within the appropriate category under total deposits on the balance sheet.

Management determines the interest rates offered on deposit accounts based on current and expected economic conditions, competition, liquidity needs, the volatility of existing deposits, the asset-liability position of the Company and the overall objectives of the Company regarding the growth and retention of relationships.

Enterprise also utilizes brokered term and overnight deposits from a number of available sources, as part of the Company's asset-liability management strategy and as an alternative to borrowed funds to support asset growth in excess of internally generated deposits. The average term on our brokered CDs is approximately 5 years. Brokered deposits along with borrowed funds may be referred to as wholesale funding.

Cash Management Services

In addition to the deposit products discussed above, commercial banking customers may take advantage of cash management services including remote deposit capture, Automated Clearing House ("ACH") credit and debit origination, credit card processing, wholesale and retail lockbox deposit, escrow management, Non-Sufficient Funds check recovery, coin and currency processing, check reconciliation, check payment fraud prevention, international and domestic wire transfers, corporate credit cards, payroll cards, and automated investment sweep of excess funds into enhanced FDIC insured money market and commercial checking accounts.

In addition to on-balance sheet sweep products, third party money market mutual funds are also offered for commercial sweep accounts.  Management believes that commercial customers benefit from this product flexibility, while retaining a conservative

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investment option of high quality and safety.  The balances transferred into mutual funds do not represent obligations of the Company and are not insured by the FDIC.

Product Delivery Channels

In addition to traditional product access channels, on-line banking customers may connect to their bank accounts securely via personal computer or any internet-enabled phone or mobile device.  Various electronic banking capabilities include the following: account inquiries, viewing of recent transactions, account transfers; loan payments; bill payments; person to person payments; check deposits; placement of stop payments; access to images of checks paid; and access to prior period account statements; commercial customers can additionally launch cash management services such as remote deposit capture, conduct ACH transactions and wire transfers.

On-line and mobile banking tools utilize multiple layers of authentication, including personal identification numbers, and one-time passwords that change with every login, for certain transactions.

Investment Services

The Company provides a range of investment advisory and management services delivered via two channels, “Enterprise Investment Advisors” and “Enterprise Investment Services.”

Investment advisory and management services includes customized investment management and trust services provided under the label “Enterprise Investment Advisors” to individuals, family groups, commercial businesses, trusts, foundations, non-profit organizations, endowments and retirement plans.

Enterprise Investment Advisors primarily utilizes an open-architecture approach to client investment management.  The philosophy is to identify and hire high performing independent investment management firms on behalf of our clients.  Since 2008, the Company has partnered with Fortigent Advisors, LLP ("Fortigent"), an investment research and due diligence firm, to strengthen strategic development, improve manager access and selection and provide performance monitoring capabilities.  Fortigent performs detailed research and due diligence reviews and provides an objective analysis of each independent management firm based on historic returns, management quality, longevity, investment style, risk profile, and other criteria, and maintains ongoing oversight and monitoring of their performance.  This due diligence is intended to enable the Company to customize investment portfolios to meet each customer’s financial objectives and deliver superior long-term performance.

Enterprise Investment Advisors also offers the flexibility of an individually managed portfolio, for clients who prefer customized asset management with a variety of investment options, which includes our Large Cap Core Equity Strategy, a proprietary blend of value and growth stocks.  Various secondary research sources are utilized with our individually managed portfolios.

Enterprise Investment Services provides brokerage and management services through a third party arrangement with Commonwealth Financial Network, a licensed securities brokerage firm, with products designed primarily for the individual investor.

Insurance Services

Enterprise Insurance Services, LLC, engages in insurance sales activities through a third party arrangement with HUB International New England, LLC (“HUB”), which is a full service insurance agency, with offices in Massachusetts and New Hampshire, and is part of HUB International Limited, which operates throughout the United States and Canada. Enterprise Insurance Services provides, through HUB, a full array of insurance products including property and casualty, employee benefits and risk-management solutions tailored to serve the specific insurance needs of businesses in a range of industries operating in the Company’s market area.

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Investment Activities

The investment portfolio activities are an integral part of the overall asset-liability management program of the Company.  The investment function provides readily available funds to support loan growth, as well as to meet withdrawals and maturities of deposits, and attempts to provide maximum return consistent with liquidity constraints and general prudence, including diversification and safety of investments.

The securities in which the Company may invest are limited by regulation.  In addition, an internal investment policy restricts fixed income investments to high quality securities within the following categories: U.S. treasury securities, federal agency obligations (obligations issued by government sponsored enterprises that are not backed by the full faith and credit of the United States government), mortgage-backed securities (“MBS’s”), including collateralized mortgage obligations (“CMO’s”), corporate debt instruments and municipal securities (“Municipals”). The Company may also invest in FDIC insured certificates of deposit and, within prescribed regulatory limits, in both publicly traded and unlisted equity securities, and registered mutual funds. Management utilizes an outside registered investment adviser to manage the corporate and municipal bond portfolios within prescribed guidelines set by management. The Company’s internal investment policy also sets target sector ranges as a percentage of the total portfolio. The effect of changes in interest rates, market values, timing of principal payments and credit risk are considered when purchasing securities.

Cash equivalents are defined as highly liquid investments with original maturities of three months or less, that are readily convertible to known amounts of cash and present insignificant risk of changes in value due to changes in interest rates.  The Company's cash and cash equivalents may be comprised of cash and due from banks, interest-earning deposits (deposit, money market money market mutual fund accounts and short-term U.S. Agency Discount Notes) and overnight and term federal funds sold ("fed funds") to money center banks.

As of the balance sheet dates reflected in this annual report, all of the investment securities within the Company's investment portfolio were classified as available for sale and carried at fair value. Management regularly reviews the portfolio for securities with unrealized losses that are other than temporarily impaired (“OTTI”). If a decline in the market value of an equity security or fund is considered other than temporary, the cost basis of the individual security or fund is written down to market value with a charge to earnings. In the case of fixed income securities, the noncredit portion of the impairment may be recognized in accumulated other comprehensive income with only the credit portion of the impairment charged to earnings.

Investment transaction summaries, portfolio allocations and projected cash flows are prepared quarterly and presented to the Asset-Liability Committee of the Company’s Board of Directors (“ALCO”) on a periodic basis.  ALCO regularly reviews the composition and key risk characteristics of the Company’s investment portfolio, including effective duration, cash flow, market value at risk and asset class concentration.  Credit risk inherent in the portfolio is closely monitored by management and presented at least annually to ALCO.  ALCO also designates acceptable and unacceptable investment practices, approves the selection of securities dealers, and the Company’s ongoing investment strategy.

The Company is required to purchase Federal Home Loan Bank of Boston (“FHLB”) stock in association with the Bank’s outstanding advances from the FHLB; this stock is classified as a restricted investment and carried at cost, which management believes approximates its fair value.

See also “Risk Factors” contained in Item 1A, and "Impairment Review of Investment Securities" contained under the heading "Critical Accounting Estimates" in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations," for further discussion on a variety of risks and uncertainties that may affect the Company’s investment portfolio.

Other Sources of Funds

As discussed above, deposit gathering has been the principal source of funds.  Asset growth in excess of deposits may be funded through cash flows from our loan and investment portfolios, or the following sources:

Borrowed Funds

Total borrowing capacity includes borrowing arrangements at the FHLB and the Federal Reserve Bank of Boston (“FRB”) Discount Window, and borrowing arrangements with correspondent banks.

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Membership in the FHLB provides borrowing capacity based on qualifying collateral balances pre-pledged to the FHLB, including certain residential loans, home equity lines, commercial loans and U.S. Government and Agency securities.  Borrowings from the FHLB typically are utilized to fund short-term liquidity needs or specific lending projects under the FHLB’s community development programs. This facility is an integral component of the Company’s asset-liability management program.

The FRB Discount Window borrowing capacity is based on the pledge of qualifying collateral balances to the FRB.  Collateral pledged for this FRB facility consists primarily of certain municipal and corporate securities from the investment portfolio. Additional types of collateral are available to increase borrowing capacity with the FRB if necessary.

Pre-established overnight borrowing arrangements with large national and regional correspondent banks provide additional overnight and short-term borrowing capacity for the Company.

The Company has, in the past, also borrowed funds from municipal customers by entering into agreements to sell and repurchase investment securities from the Company’s portfolio ("repurchase agreements").

See also “Risk Factors” contained in Item 1A, for further discussion on a variety of risks and uncertainties that may affect the Company’s ability to obtain funding and sustain liquidity.

Junior Subordinated Debentures

In March 2000, the Company organized Enterprise (MA) Capital Trust I (the “Trust”), a statutory business trust created under the laws of Delaware, in order to issue $10.5 million of 10.875% trust preferred securities that mature in 2030 and are callable at a premium if called between 2010 and 2020 (to date, the Company has not called any portion of these trust preferred securities). The proceeds from the sale of the trust preferred securities were used by the Trust, along with the Company’s $325 thousand capital contribution, to acquire $10.8 million of the Company’s 10.875% callable Junior Subordinated Debentures that mature in 2030. The Company contributed $10.3 million of proceeds from the sale of these securities to the Bank in 2000.

Pursuant to the Accounting Standards Codification (“ASC”) Topic 810 “Consolidation of Variable Interest Entities,” issued by the Financial Accounting Standards Board (originally issued as Financial Interpretation No. 46R), the Company carries the $10.8 million of Junior Subordinated Debentures on the Company’s financial statements as a liability, along with related interest expense, and the $10.5 million of trust preferred securities issued by the Trust, and the related non-interest expense, are excluded from the Company’s financial statements.

Capital Resources

Capital planning by the Company and the Bank considers current needs and anticipated future growth.  The primary sources of capital have been the original capitalization of the Bank of $15.5 million from the sale of common stock in 1988 and 1989, the issuance of $10.5 million of trust preferred securities in 2000 by the Trust, and net proceeds of $8.8 million from the 2009 combined Shareholder Subscription Rights Offering and Supplemental Community Offering. Ongoing sources of capital include the retention of earnings less dividends paid since the Bank commenced operations, proceeds from the exercise of employee stock options and proceeds from purchases of shares pursuant to the Company’s shareholder dividend reinvestment plan.

As of December 31, 2013 and 2012, both the Company and the Bank qualified as “well capitalized” under current applicable regulations of the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”) and the FDIC. Although the Company believes its current capital is adequate to support ongoing operations and that the Company and the Bank meet all capital adequacy requirements to which they are subject, on July 18, 2013, the Company filed a shelf registration of common stock, rights or preferred stock with the Securities and Exchange Commission for the flexibility to raise, over a three year period, up to $40 million in capital to position the Company to take advantage of future growth and market share opportunities.

See “Capital Requirements” below under the heading “Supervision and Regulation” for information regarding the Company’s and the Bank’s regulatory capital requirements. 

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Patents, Trademarks, etc.

The Company holds a number of registered service marks and trademarks related to product names and corporate branding.  The Company holds no other patents, registered trademarks, licenses (other than licenses required to be obtained from appropriate banking regulatory agencies), franchises or concessions which are material to its business.

Employees

At December 31, 2013, the Company employed 398 full-time equivalent employees, including 166 officers.  None of the employees are presently represented by a union or covered by a collective bargaining agreement.  Management believes its employee relations are excellent.

Company Website

Enterprise Bank currently uses outside vendors to design, support and host its internet website.  The underlying structure of the site allows for the ongoing maintenance of the information to be performed by authorized Company personnel.  The site provides information on the Company and its products and services. Users have the ability to open various deposit accounts as well as the ability to submit mortgage loan applications online and, via a link, to access their on-line account and mobile banking services. The site also provides the access point to a variety of specified banking services and information, various financial management tools, and investor and corporate information, which includes a corporate governance page.  The Company’s corporate governance page includes the corporate governance guidelines, code of business conduct and ethics, and whistleblower and non-retaliation protection policy, as well as the charters of the Board of Directors’ Audit, Compensation and Personnel, and Corporate Governance/Nominating committees.

In the Investor Relations section of the site, under the SEC Filings tab, the Company makes available copies of the Company’s annual report on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K. Additionally, the site includes all registration statements that the Company has been required to file in connection with the issuance of its shares. The Company similarly makes available all insider stock ownership and transaction reports filed with the SEC by executive officers, directors and any 10% stockholders under Section 16 of the Securities Exchange Act of 1934 (Forms 3, 4 and 5). Access to all of these reports is made available free of charge and is essentially simultaneous with the SEC’s posting of these reports on its EDGAR system through the SEC website (www.SEC.gov). The Company’s internet web address is EnterpriseBanking.com.

Competition

Enterprise faces robust competition to attract and retain customers within existing and neighboring geographic markets.  National and larger regional banks have a local presence in the Company’s market area.  These larger banks have certain competitive advantages, including greater financial resources and the ability to make larger loans to a single borrower. Numerous local savings banks, commercial banks, cooperative banks and credit unions also compete in the Company’s market area.  The expanded commercial lending capabilities of credit unions and the shift to commercial lending by traditional savings banks means that both of these types of traditionally consumer-orientated institutions now compete for the Company’s targeted commercial customers.  In addition, the non-taxable status of credit unions allows them certain advantages as compared to taxable institutions such as Enterprise.  Competition for loans, deposits and cash management services, investment advisory assets, and insurance business also comes from other businesses that provide financial services, including consumer finance companies, mortgage brokers and lenders, private lenders, insurance companies, securities brokerage firms, institutional mutual funds, registered investment advisors, non-bank payment channels, and internet based banks.  Consolidation within the industry, customer disenfranchisement with larger national/international banks, banks exiting certain business lines, and the cost of compliance with new government regulations are all expected to have an impact on the regional competitive market. Management actively seeks to strengthen its competitive position by capitalizing on the market opportunities and the continued pursuit of strategic growth within existing and neighboring geographic markets.

Management believes that the Company has established a positive reputation within its market area as a dependable commercial-focused community bank.  Management is committed to differentiating the Company from the competition by providing a full range of diversified financial services and products with consistent and exceptional customer service, a highly-trained and dedicated staff of knowledgeable banking professionals, open and honest communication with clients, and a committed focus on active community involvement which has lead to a strong referral network with business and community leaders.

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Management continually examines the Company’s product lines and technologies in order to maintain a highly competitive mix of offerings and delivery channels, and to target products to customer needs. Advances in, and the increased use of, technology, such as internet and mobile banking, electronic transaction processing and information security, are expected to have a significant impact on the future competitive landscape confronting financial institutions.

See also “Supervision and Regulation” below, and Item 1A, “Risk Factors,” and “Opportunities and Risks” included in the section entitled “Overview,” which is contained in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” for further discussion on how new laws and regulations and other factors may affect the Company’s competitive position, growth and/or profitability.

Supervision and Regulation

General

Set forth below is a summary description of the significant elements of the laws and regulations applicable to the Company. The description is qualified in its entirety by reference to the full text of the statutes, regulations and policies that are described. Moreover, these statutes, regulations and policies are continually under review by the U.S. Congress and state legislatures and federal and state regulatory agencies. A change in statutes, regulations or regulatory policies applicable to the Company or its principal subsidiary, the Bank, could have a material effect on our business.

Regulatory Agencies

As a registered bank holding company, the Company is subject to the supervision and regulation of the Federal Reserve Board and, acting under delegated authority, the FRB pursuant to the Bank Holding Company Act of 1956, as amended (the “Bank Holding Company Act”).

As a Massachusetts state-chartered bank, the Bank is subject to the supervision and regulation of the Massachusetts Division of Banks and, with respect to the Bank's New Hampshire branching operations, the New Hampshire Banking Department. As a state-chartered bank that is not a member of the Federal Reserve System, the Bank is also subject to the supervision and regulation of the FDIC.

Bank Holding Company Regulation

As a registered bank holding company, the Company is required to furnish to the FRB annual and quarterly reports of its operations and may also be required to furnish such additional information and reports as the Federal Reserve Board or the FRB may require.

Acquisitions by Bank Holding Companies

Under the Bank Holding Company Act, the Company must obtain the prior approval of the Federal Reserve Board or, acting under delegated authority, the FRB before (1) acquiring direct or indirect ownership or control of any class of voting securities of any bank or bank holding company if, after the acquisition, the Company would directly or indirectly own or control 5% or more of the class; (2) acquiring all or substantially all of the assets of another bank or bank holding company; or (3) merging or consolidating with another bank holding company. The Company's acquisition of or merger with another bank holding company or acquisition of another bank would also require the prior approval of the Massachusetts Division of Banks.

Under the Bank Holding Company Act, any company must obtain approval of the Federal Reserve Board or, acting under delegated authority, the FRB, prior to acquiring control of the Company or the Bank. For purposes of the Bank Holding Company Act, “control” is defined as ownership of 25% or more of any class of voting securities of the Company or the Bank, the ability to control the election of a majority of the directors, or the exercise of a controlling influence over management or policies of the Company or the Bank.

Control Acquisitions

The Change in Bank Control Act of 1978, as amended (the “Change in Bank Control Act”), and the related regulations of the Federal Reserve Board require any person or groups of persons acting in concert (except for companies required to make application under the Bank Holding Company Act), to file a written notice with the Federal Reserve Board or, acting under

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delegated authority, the appropriate Federal Reserve Bank, before the person or group acquires control of the Company. The Change in Bank Control Act defines “control” as the direct or indirect power to vote 25% or more of any class of voting securities or to direct the management or policies of a bank holding company or an insured bank. A rebuttable presumption of control arises under the Change in Bank Control Act where a person or group controls 10% or more, but less than 25%, of a class of the voting stock of a company or insured bank which is a reporting company under the Securities Exchange Act of 1934, as amended, such as the Company, or such ownership interest is greater than the ownership interest held by any other person or group.

In addition, the Change in Bank Control Act prohibits any entity from acquiring 25% (5% in the case of an acquirer that is a bank holding company) or more of a bank holding company’s or bank’s voting securities, or otherwise obtaining control or a controlling influence over a bank holding company or bank without the approval of the Federal Reserve Board. On September 22, 2008, the Federal Reserve Board issued a policy statement on equity investments in bank holding companies and banks, which allows the Federal Reserve Board to generally be able to conclude that an entity’s investment is not “controlling” if the entity does not own in excess of 15% of the voting power and 33% of the total equity of the bank holding company or bank. Depending on the nature of the overall investment and the capital structure of the banking organization, the Federal Reserve Board will permit, based on the policy statement, non-controlling investments in the form of voting and nonvoting shares that represent in the aggregate (i) less than one-third of the total equity of the banking organization (and less than one-third of any class of voting securities, assuming conversion of all convertible nonvoting securities held by the entity) and (ii) less than 15% of any class of voting securities of the banking organization.

Under the Change in Bank Control Act and applicable Massachusetts law, any person or group of persons acting in concert would also be required to file a written notice with the FDIC and the Massachusetts Division of Banks before acquiring any such direct or indirect control of the Bank.

Permissible Activities

The Bank Holding Company Act also limits the investments and activities of bank holding companies. In general, a bank holding company is prohibited from acquiring direct or indirect ownership or control of more than 5% of the voting shares of a company that is not a bank or a bank holding company or from engaging directly or indirectly in activities other than those of banking, managing or controlling banks, providing services for its subsidiaries, and various non-bank activities that are deemed to be closely related to banking. The activities of the Company are subject to these legal and regulatory limitations under the Bank Holding Company Act and the implementing regulations of the Federal Reserve Board.

In connection with the Dodd-Frank Act, the final Volcker Rule approved by regulators in December 2013, amended the Bank Holding Company Act to generally prohibit banking entities from engaging in the short-term proprietary trading of securities and derivatives for their own account and barred them from having certain relationships with hedge funds or private equity funds. Included within the range of funds covered by the regulations are certain trust-preferred securities that back collateralized debt obligations. As the Company does not hold any of the prohibited investments, this aspect of the Volcker Rule is not expected to have any impact on the Company’s financial statements.

A bank holding company may also elect to become a “financial holding company,” by which a qualified parent holding company of a banking institution may engage, directly or through its non-bank subsidiaries, in any activity that is financial in nature or incidental to such financial activity or in any other activity that is complementary to a financial activity and does not pose a substantial risk to the safety and soundness of depository institutions or the financial system generally. A bank holding company will be able to successfully elect to be regulated as a financial holding company if all of its depository institution subsidiaries meet certain prescribed standards pertaining to management, capital adequacy and compliance with the Community Reinvestment Act of 1977, as amended (the “Community Reinvestment Act”), such as being “well-capitalized” and “well-managed,” and must have a Community Reinvestment Act rating of at least “satisfactory.” Financial holding companies remain subject to regulation and oversight by the Federal Reserve Board. The Company believes that the Bank, which is the Company's sole depository institution subsidiary, presently satisfies all of the requirements that must be met to enable the Company to successfully elect to become a financial holding company. However, the Company has no current intention of seeking to become a financial holding company. Such a course of action may become necessary or appropriate at some time in the future depending upon the Company's strategic plan.

Source of Strength

Under the Federal Reserve Board's “source of strength” doctrine, a bank holding company is required to act as a source of financial and managerial strength to any subsidiary bank. The holding company is expected to commit resources to support a

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subsidiary bank, including at times when the holding company may not be in a financial position to provide such support. A bank holding company's failure to meet its source-of-strength obligations may constitute an unsafe and unsound practice or a violation of the Federal Reserve Board's regulations, or both. The source-of-strength doctrine most directly affects bank holding companies in situations where the bank holding company's subsidiary bank fails to maintain adequate capital levels. This doctrine was codified by the Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank Act”), but the Federal Reserve Board has not yet adopted regulations to implement this requirement.

Imposition of Liability for Undercapitalized Subsidiaries

Bank regulators are required to take “prompt corrective action” to resolve problems associated with insured depository institutions whose capital declines below certain levels. In the event an institution becomes “undercapitalized,” it must submit a capital restoration plan. The capital restoration plan will not be accepted by the regulators unless each company having control of the undercapitalized institution guarantees the subsidiary’s compliance with the capital restoration plan up to a certain specified amount. Any such guarantee from a depository institution’s holding company is entitled to a priority of payment in bankruptcy.

The aggregate liability of the holding company of an undercapitalized bank is limited to the lesser of 5% of the institution’s assets at the time it became undercapitalized or the amount necessary to cause the institution to be “adequately capitalized.” The bank regulators have greater power in situations where an institution becomes “significantly” or “critically” undercapitalized or fails to submit a capital restoration plan. For example, a bank holding company controlling such an institution can be required to obtain prior Federal Reserve Board approval of proposed dividends, or might be required to consent to a consolidation or to divest the troubled institution or other affiliates.

Safety and Soundness

The Federal Reserve Board also has the power to order a bank holding company to terminate any activity or investment, or to terminate its ownership or control of any subsidiary, when it has reasonable cause to believe that the continuation of such activity or investment or such ownership or control constitutes a serious risk to the financial safety, soundness, or stability of any subsidiary bank of the bank holding company.

Bank holding companies are not permitted to engage in unsound banking practices. For example, the Federal Reserve Board's Regulation Y requires a holding company to give the Federal Reserve Board prior notice of any redemption or repurchase of its own equity securities, if the consideration to be paid, together with the consideration paid for any repurchases in the preceding year, is equal to 10% or more of the bank holding company's consolidated net worth. There is an exception for bank holding companies that are well-managed, well-capitalized, and not subject to any unresolved supervisory issues. The Federal Reserve Board may oppose the transaction if it believes that the transaction would constitute an unsafe or unsound practice or would violate any law or regulation. As another example, a holding company could not impair its subsidiary bank's soundness by causing it to make funds available to non-banking subsidiaries or their customers if the Federal Reserve Board believed it not prudent to do so.

The Financial Institutions Reform, Recovery and Enforcement Act of 1989 (“FIRREA”) expanded the Federal Reserve Board's authority to prohibit activities of bank holding companies and their non-banking subsidiaries which represent unsafe and unsound banking practices or which constitute violations of laws or regulations. FIRREA increased the amount of civil money penalties which the Federal Reserve Board can assess for activities conducted on a knowing and reckless basis, if those activities caused a substantial loss to a depository institution. The penalties can be as high as $1.0 million for each day the activity continues. FIRREA also expanded the scope of individuals and entities against which such penalties may be assessed.

Regulatory Restrictions on Dividends

The Company is regarded as a legal entity separate and distinct from the Bank. The principal source of the Company’s revenues is dividends received from the Bank. Both Massachusetts and federal law limit the payment of dividends by the Company. Under Massachusetts law, the Company is generally prohibited from paying a dividend or making any other distribution if, after making such distribution, it would be unable to pay its debts as they become due in the usual course of business, or if its total assets would be less than the sum of its total liabilities plus the amount that would be needed if it were dissolved at the time of the distribution, to satisfy any preferential rights on dissolution of holders of preferred stock ranking senior in right of payment to the capital stock on which the applicable distribution is made. The Federal Reserve Board also has further authority to prohibit dividends by bank holding companies if their actions constitute unsafe or unsound practices. The Federal Reserve Board has issued a policy statement and supervisory guidance on the payment of cash dividends by bank holding companies, which expresses the Federal Reserve Board's view that a bank holding company should pay cash dividends

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only to the extent that, (1) the company's net income for the past year is sufficient to cover the cash dividends, (2) the rate of earnings retention is consistent with the company's capital needs, asset quality, and overall financial condition, and (3) the minimum regulatory capital adequacy ratios are met. It is also the Federal Reserve Board's policy that bank holding companies should not maintain dividend levels that undermine their ability to serve as a source of strength to their banking subsidiaries.

Bank Regulation

The Bank is subject to the supervision and regulation of the Massachusetts Division of Banks and the FDIC, and, with respect to its New Hampshire branching operations, of the New Hampshire Banking Department. Federal and Massachusetts laws and regulations that specifically apply to the Bank's business and operations cover, among other matters, the scope of its business, the nature of its investments, its reserves against deposits, the timing of the availability of deposited funds, its activities relating to dividends, investments, loans, the nature and amount of and collateral for certain loans, borrowings, capital requirements, certain check-clearing activities, branching, and mergers and acquisitions. The Bank is also subject to federal and state laws and regulations that restrict or limit loans or extensions of credit to, or other transactions with, “insiders”, including officers, directors and principal shareholders, and loans or extension of credit by banks to affiliates or purchases of assets from, or other transactions with, affiliates, including parent holding companies.

The FDIC and the Massachusetts Division of Banks may exercise extensive discretion in connection with their supervisory and enforcement activities and examination policies, including policies with respect to the classification of assets and the establishment of adequate loan loss reserves for regulatory purposes. If as a result of an examination, the Massachusetts Division of Banks or the FDIC should determine that the financial condition, capital resources, asset quality, earnings prospects, management, liquidity, or other aspects of the Bank's operations are unsatisfactory or that the Bank or its management is violating or has violated any law or regulation, the Massachusetts Division of Banks and the FDIC have authority to undertake a variety of enforcement measures of varying degrees of severity, including the following:

• Requiring the Bank to take affirmative action to correct any conditions resulting from any violation or practice;

• Directing the Bank to increase capital and maintain higher specific minimum capital ratios, which may preclude the Bank from being deemed to be well capitalized and restrict its ability to engage in various activities;

• Restricting the Bank's growth geographically, by products and services, or by mergers and acquisitions;

• Requiring the Bank to enter into an informal or formal enforcement action to take corrective measures and cease unsafe and unsound practices, including requesting the board of directors to adopt a binding resolution or sign a memorandum of understanding or requesting the Bank to enter into consent order;

• Requiring prior approval for any changes in senior management or the board of directors;

• Removing officers and directors and assessing civil monetary penalties; and

• Taking possession of, closing and liquidating the Bank or appointing the FDIC as receiver under certain circumstances.

Permissible Activities

Under the Federal Deposit Insurance Act, as amended (the “FDIA”), and applicable Massachusetts law, the Bank may generally engage in any activity that is permissible under Massachusetts law and either is permissible for national banks or the FDIC has determined does not pose a significant risk to the FDIC's Deposit Insurance Fund (“DIF”). In addition, the Bank may also form, subject to the approvals of the Massachusetts Division of Banks and the FDIC, “financial subsidiaries” to engage in any activity that is financial in nature or incidental to a financial activity. In order to qualify for the authority to form a financial subsidiary, the Bank would be required to satisfy certain conditions, some of which are substantially similar to those that the Company would be required to satisfy in order to elect to become a financial holding company. The Company believes that the Bank would be able to satisfy all of the conditions that would be required to form a financial subsidiary, although the Company has no current intention of doing so. Such a course of action may become necessary or appropriate at some time in the future depending upon the Company's strategic plan.

Capital Requirements

The federal banking agencies have adopted risk-based capital guidelines for bank holding companies and banks that are expected to provide a measure of capital that reflects the degree of risk associated with a banking organization's operations for both transactions reported on the balance sheet as assets, such as loans, and those recorded as off-balance sheet items, such as commitments, letters of credit and recourse arrangements. Under these capital guidelines, banking organizations are required to maintain certain minimum capital ratios, which are obtained by dividing its qualifying capital by its total risk-adjusted assets and off-balance sheet items. In general, the dollar amounts of assets and certain off-balance sheet items are “risk-adjusted” and

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assigned to various risk categories. In addition to such risk adjusted capital requirements, banking organizations are also required to maintain an additional minimum “leverage” capital ratio, which is calculated on the basis of average total assets without any adjustment for risk being made to the value of the assets. Qualifying capital is classified depending on the type of capital as follows:

“Tier 1 capital” consists of common equity, retained earnings, qualifying non-cumulative perpetual preferred stock, a limited amount of qualifying cumulative perpetual preferred stock and minority interests in the equity accounts of consolidated subsidiaries, less goodwill and certain other intangible assets. In determining bank holding company compliance with holding company level capital requirements, qualifying Tier 1 capital may count trust preferred securities, subject to certain criteria and quantitative limits for inclusion of restricted core capital elements in Tier 1 capital, provided that the bank holding company has total assets of less than $15.0 billion and such trust preferred securities were issued before May 19, 2010;

“Tier 2 capital” includes, among other things, hybrid capital instruments, perpetual debt, mandatory convertible debt securities, qualifying term subordinated debt, preferred stock that does not qualify as Tier 1 capital, and a limited amount of allowance for loan and lease losses; and

“Tier 3 capital” consists of qualifying unsecured subordinated debt.

Under the federal capital guidelines, there are three fundamental capital ratios: a total risk-based capital ratio, a Tier 1 risk-based capital ratio and a Tier 1 leverage ratio. To be deemed “well capitalized” under the prompt corrective action framework, a bank holding company must have a total risk-based capital ratio and a Tier 1 risk-based capital ratio of at least 10% and 6%, respectively, and a bank must have a total risk-based capital ratio, a Tier 1 risk-based capital ratio and a Tier 1 leverage ratio of at least 10%, 6% and 5%, respectively. At December 31, 2013, the respective capital ratios of both the Company and the Bank exceeded the minimum percentage requirements to be deemed “well capitalized” under applicable Federal Reserve Board and FDIC capital rules.

Following the implementation of the new Basel III Rules, a bank holding company must satisfy increased capital levels in order comply with the prompt corrective action framework and to avoid limitations on capital distributions and discretionary bonus payments once the rule is fully phased in. See “New Capital Requirements under Basel III” below.

Pursuant to federal regulations, banks and bank holding companies must maintain capital levels commensurate with the level of risk to which they are exposed, including the volume and severity of problem loans. The federal banking agencies may change existing capital guidelines or adopt new capital guidelines in the future and have required many banks and bank holding companies subject to enforcement actions to maintain capital ratios in excess of the minimum ratios otherwise required to be deemed well capitalized, in which case the affected institution may no longer be deemed well capitalized and may be subject to restrictions on various activities, including a bank's ability to accept or renew brokered deposits.

The current risk-based capital guidelines are based upon the 1988 capital accord of the International Basel Committee on Banking Supervision, a committee of central banks and bank supervisors and regulators from the major industrialized countries that develops broad policy guidelines for use by each country's supervisors in determining the supervisory policies they apply.

New Capital Requirements under Basel III

On July 2, 2013, the Federal Reserve Board, and on July 9, 2013, the FDIC and OCC, adopted a final rule that implements the Basel III changes to the international regulatory capital framework, referred to as the “Basel III Rules.” The Basel III Rules apply to both depository institutions and (subject to certain exceptions not applicable to the Company) their holding companies. Although parts of the Basel III Rules apply only to large, complex financial institutions, substantial portions of the Basel III Rules apply to the Company and the Bank. The Basel III Rules include requirements contemplated by the Dodd-Frank Act as well as certain standards initially adopted by the Basel Committee on Banking Supervision in December 2010.

The Basel III Rules include new risk-based and leverage capital ratio requirements and refine the definition of what constitutes “capital” for purposes of calculating those ratios. The Basel III Rules also create a new common equity Tier 1 (“CET1”) risk-based capital ratio. Common Equity Tier 1 capital will consist of retained earnings and common stock instruments, subject to certain adjustments.

The Basel III Rules will also establish a “capital conservation buffer” of 2.5% above the new regulatory minimum risk-based capital requirements. The new capital conservation buffer requirement is to be phased in beginning in January 2016 at 0.625% of risk-weighted assets and will increase by that amount each year until fully implemented in January 2019. An institution

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would be subject to limitations on certain activities including payment of dividends, share repurchases and discretionary bonuses to executive officers if its capital level is below the buffer amount.

The above BASEL III capital ratio requirements as applicable to the Bank after the full phase-in period are summarized in the table below.⁽¹⁾ 

	BASEL III Minimum for Capital Adequacy Purposes	BASEL III Additional Capital Conservation Buffer	BASEL III "Adequate" Ratio with Capital Conservation Buffer
Total Risked Based Capital (total capital to risk weighted assets)	8.0%	2.5%	10.5%
Tier 1 Risked Based Capital (tier 1 to risk weighted assets)	6.0%	2.5%	8.5%
Tier 1 Leverage Ratio (tier 1 to average assets)	4.0%	—%	4.0%
Common Equity Tier 1 Risked Based (CET1 to risk weighted assets)	4.5%	2.5%	7.0%

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(1) Because the BASEL III final rules modify the methodology for calculating risk-weighted assets and the deduction and adjustment to capital, the ratios above may not be comparable to the current applicable regulatory requirements, or the Company's actual capital ratios as of December 31, 2013.

The Basel III Rules would also revise the prompt corrective action framework, which is designed to place restrictions on insured depository institutions, including our subsidiary bank, if their capital levels do not meet certain thresholds. These revisions are to be effective January 1, 2015. The prompt correction action rules will be modified to include a CET1 capital component and to increase certain other capital requirements for the various thresholds. For example, under the revised prompt corrective action rules, insured depository institutions will be required to meet the following capital levels in order to qualify as “well capitalized:” (i) a Total risk-based capital ratio of 10% (unchanged from current rules); (ii) a Tier 1 risk-based capital ratio of 8% (increased from 6%); (iii) a Tier 1 leverage ratio of 5% (unchanged from current rules) ; and (iv) a new common equity Tier 1 risk-based capital ratio of 6.5%.

The Basel III Rules set forth certain changes in the methods of calculating certain risk-weighted assets, which in turn will affect the calculation of risk based ratios. Under the Basel III Rules, higher or more sensitive risk weights would be assigned to various categories of assets, including, certain credit facilities that finance the acquisition, development or construction of real property, certain exposures or credits that are 90 days past due or on non-accrual, foreign exposures and certain corporate exposures. In addition, the Basel III Rules include (i) alternative standards of credit worthiness consistent with the Dodd-Frank Act; (ii) greater recognition of collateral and guarantees; and (iii) revised capital treatment for derivatives and repo-style transactions.

In addition, the final Basel III Rules include certain exemptions to address concerns about the regulatory burden on community banks. For example, banking organizations with less than $15 billion in consolidated assets as of December 31, 2009 are permitted to include in Tier 1 capital trust preferred securities and cumulative perpetual preferred stock issued and included in Tier 1 capital prior to May 19, 2010 on a permanent basis, without any phase out. Community banks may also elect on a one time basis in their March 31, 2015 quarterly filings to opt-out out of the requirement to include most accumulated other comprehensive income (“AOCI”) components in the calculation of CET1 capital and, in effect, retain the AOCI treatment under the current capital rules. Under the Basel III Rules, the Company may make a one-time, permanent election to continue to exclude accumulated other comprehensive income from capital. If the Company does not make this election, unrealized gains and losses would be included in the calculation of its regulatory capital. Overall, the rule provides some important concessions for smaller, less complex financial institutions.

The Basel III Rules generally become effective beginning January 1, 2015. The conservation buffer will be phased in beginning in 2016 and will take full effect on January 1, 2019. Although the Company must generally begin complying with the final rules on January 1, 2015, management believes the Company would satisfy the higher capital ratios imposed by Basel III, in addition to the new "well capitalized" requirements under the revised prompt corrective action rules discussed above, as of December 31, 2013.

Prompt Corrective Action

The federal banking agencies have issued regulations pursuant to the FDIA defining five categories in which an insured depository institution will be placed, based on the level of its capital ratios: well-capitalized, adequately-capitalized,

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undercapitalized, significantly undercapitalized, and critically undercapitalized. A bank that may otherwise meet the minimum requirements to be classified as well-capitalized, adequately capitalized, or undercapitalized may be treated instead as though it were in the next lower capital category if the appropriate federal banking agency, after notice and opportunity for hearing, determines that an unsafe or unsound condition, or an unsafe or unsound practice, warrants such treatment. Under the prompt corrective action regulations, a bank that is deemed to be undercapitalized or in a lesser capital category will be required to submit to its primary federal banking regulator a capital restoration plan and to comply with the plan.

Any bank holding company that controls a subsidiary bank that has been required to submit a capital restoration plan will be required to provide assurances of compliance by the bank with the capital restoration plan, subject to limitations on the bank holding company's aggregate liability in connection with providing such required assurances. Failure to restore capital under a capital restoration plan can result in the bank being placed into receivership if it becomes critically undercapitalized. A bank subject to prompt corrective action also may affect its parent holding company in other ways. These include possible restrictions or prohibitions on dividends or subordinated debt payments to the parent holding company by the bank, as well as limitations on other transactions between the bank and the parent holding company. In addition, the Federal Reserve Board may impose restrictions on the ability of the bank holding company itself to pay dividends, or require divestiture of holding company affiliates that pose a significant risk to the subsidiary bank, or require divestiture of the undercapitalized subsidiary bank. At each successive lower capital category, an insured bank may be subject to increased operating restrictions by its primary federal banking regulator.

Branching

Massachusetts law provides that a Massachusetts banking company can establish a branch anywhere in Massachusetts provided that the branch is approved in advance by the Massachusetts Division of Banks and the FDIC, who consider a number of factors, including financial history, capital adequacy, earnings prospects, character of management, needs of the community and consistency with corporate powers. The Bank also may establish branches in any other state if that state would permit the establishment of a branch by a state bank chartered in that state, which also requires the approval of the Massachusetts Division of Banks, the FDIC and potentially the banking authority of the state into which the Bank intends to branch.

Deposit Insurance

The FDIC insures the deposits of federally insured banks, such as the Bank, and thrifts, up to prescribed statutory limits for each depositor, through the DIF and safeguards the safety and soundness of the banking and thrift industries. The Dodd-Frank Act permanently raised the standard maximum deposit insurance amount to $250,000. The amount of FDIC assessments paid by each insured depository institution is based on its relative risk of default as measured by regulatory capital ratios and other supervisory factors.

In connection with the Dodd Frank Act's requirement that insurance assessments be based on assets, the FDIC has redefined its deposit insurance premium assessment base to be an institution's average consolidated total assets minus average tangible equity, and revised its deposit insurance assessment rate schedule in light of this change to the assessment base. The revised rate schedule and other revisions to the assessment rules became effective April 1, 2011. The Bank's deposit insurance expense decreased as a result of these changes to the Bank's deposit insurance premium assessment base implemented by the FDIC pursuant to the Dodd-Frank Act.

The Bank is generally unable to control the amount of premiums that it is required to pay for FDIC insurance. At least semi-annually, the FDIC will update its loss and income projections for the DIF and, if needed, will increase or decrease assessment rates, following notice-and-comment rulemaking, if required. If there are additional bank or financial institution failures or if the FDIC otherwise determines to increase assessment rates, the Bank may be required to pay higher FDIC insurance premiums. Any future increases in FDIC insurance premiums may have a material and adverse effect on the Company's earnings.

In addition, all FDIC-insured institutions are required to pay assessments to the FDIC to fund interest payments on bonds issued by the Financing Corporation (“FICO”), an agency of the federal government established to recapitalize the predecessor to the DIF. These assessments, which are included in Deposit Insurance Premiums on the Consolidated Statements of Income, will continue until the FICO bonds mature between 2017 and 2019.

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Restrictions on Dividends and Other Capital Distributions

The Company's ability to pay dividends on its shares depends primarily on dividends it receives from the Bank. Both Massachusetts and federal law limit the payment of dividends by the Bank. Under FDIC regulations and applicable Massachusetts law, the dollar amount of dividends and any other capital distributions that the Bank may make depends upon its capital position and recent net income. Generally, so long as the Bank remains adequately capitalized, it may make capital distributions during any calendar year equal to up to 100% of net income for the year to date plus retained net income for the two preceding years. However, if the Bank's capital becomes impaired or the FDIC or Massachusetts Division of Banks otherwise determines that the Bank is in need of more than normal supervision, the Bank may be prohibited or otherwise limited from paying any dividends or making any other capital distributions.

Community Reinvestment Act

The Community Reinvestment Act of 1977 requires that, in connection with examinations of financial institutions within its jurisdiction, the FDIC and the Massachusetts Division of Banks is to evaluate the record of each financial institution in meeting the credit needs of its local community, including low and moderate-income neighborhoods. These facts are also considered in evaluating mergers, acquisitions, and applications to open a branch or facility. Failure to adequately meet these criteria could impose additional requirements and limitations on us. Additionally, the Bank must publicly disclose the terms of various Community Reinvestment Act-related agreements. The Bank received a rating of “satisfactory” on its most recent Community Reinvestment Act examination.

Restrictions on Transactions with Affiliates and Loans to Insiders

The Bank is subject to the provisions of Section 23A of the Federal Reserve Act (the “Affiliates Act”), as such provisions are made applicable to state non-member banks by Section 18(i) of the Federal Deposit Insurance Act. Affiliates of a bank include, among other entities, the bank's holding company and companies that are under common control with the bank.

These provisions place limits on the amount of:

• loans or extensions of credit to affiliates;

• investment in affiliates;

• assets that may be purchased from affiliates, except for real and personal property exempted by the Federal Reserve Board;

• the amount of loans or extensions of credit to third parties collateralized by the securities or obligations of affiliates; and

• the guarantee, acceptance or letter of credit issued on behalf of an affiliate.

The total amount of the above transactions is limited in amount, as to any one affiliate, to 10% of the Bank's capital and surplus and, as to all affiliates combined, to 20% of its capital and surplus. In addition to the limitation on the amount of these transactions, each of the above transactions must also meet specified collateral requirements. The Bank must also comply with other provisions designed to avoid the purchase or acquisition of low-quality assets from affiliates. The Dodd-Frank Act expanded the scope of Section 23A, which now includes investment funds managed by an institution as an affiliate, as well as other procedural and substantive hurdles.

The Bank is also subject to Section 23B of the Federal Reserve Act which, among other things, prohibits the Bank from engaging in any transaction with an affiliate unless the transaction is on terms substantially the same, or at least as favorable to the Bank or its subsidiaries, as those prevailing at the time for comparable transactions with nonaffiliated companies.

Under both Massachusetts and federal law, the Bank is also subject to restrictions on extensions of credit to its executive officers, directors, principal shareholders and their related interests. These extensions of credit (1) must be made on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with third parties and (2) must not involve more than the normal risk of repayment or present other unfavorable features. The Dodd-Frank Act expanded coverage of transactions with insiders by including credit exposure arising from derivative transactions (which are also covered by the expansion of Section 23A). The Dodd-Frank Act prohibits an insured depository institution from purchasing or selling an asset to an executive officer, director, or principal shareholder (or any related interest of such a person) unless the transaction is on market terms, and, if the transaction exceeds 10% of the institution's capital, it is approved in advance by a majority of the disinterested directors.

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Concentrated Commercial Real Estate Lending Regulations

The federal banking agencies, including the FDIC, have promulgated guidance governing financial institutions with concentrations in commercial real estate lending. The guidance provides that a bank has a concentration in commercial real estate lending if (i) total reported loans for construction, land development, and other land represent 100% or more of total capital or (ii) total reported loans secured by multifamily and non-farm nonresidential properties (excluding loans secured by owner-occupied properties) and loans for construction, land development, and other land represent 300% or more of total capital and the bank's commercial real estate loan portfolio has increased 50% or more during the prior 36 months. If a concentration is present, management must employ heightened risk management practices that address the following key elements: including board and management oversight and strategic planning, portfolio management, development of underwriting standards, risk assessment and monitoring through market analysis and stress testing, and maintenance of increased capital levels as needed to support the level of commercial real estate lending. As of December 31, 2013, the Company did not exceed the levels to be considered to have a concentration in commercial real estate lending.

The Dodd-Frank Wall Street Reform and Consumer Protection Act

On July 21, 2010, President Obama signed into law the Dodd-Frank Act, which implements significant changes to the regulation of the financial services industry. Among other reforms discussed throughout this section, the Dodd-Frank Act includes the following provisions that have affected or are likely to affect us:

• Repeal of the federal prohibitions on the payment of interest on demand deposits effective July 21, 2011, thereby permitting, but not requiring, depository institutions to pay interest on business transaction and other accounts.

• Imposition of comprehensive regulation of the over-the-counter derivatives market, including provisions that effectively prohibit insured depository institutions from conducting certain derivatives activities from within the institution.

• Implementation of corporate governance revisions, including proxy access requirements for all publicly traded companies.

• Increase in the Federal Reserve Board's examination authority with respect to bank holding companies' non-banking subsidiaries.

• Limitations on the amount of any interchange fee charged by a debit card issuer to be reasonable and proportional to the cost incurred by the issuer effective July 21, 2011. On June 29, 2011, the Federal Reserve Board set the interchange rate cap at $0.24 per transaction. While these restrictions do not apply to banks like us with less than $10 billion in assets, the rule could affect the competitiveness of debit cards issued by smaller banks. We believe that market forces may erode the effectiveness of this exemption now that merchants can select more than one network for transaction routing.

• Significant increases in the regulation of mortgage lending and servicing by banks and nonbanks.  In particular, requirements that mortgage originators act in the best interests of a consumer and seek to ensure that a consumer will have the capacity to repay a loan that the consumer enters into; required mortgage originators to be properly qualified, registered, and licensed and to comply with any regulations designed by the FRB to monitor their operations; mandates of comprehensive additional and enhanced residential mortgage loan related disclosures, both prior to loan origination and after; mandates of additional appraisal practices for loans secured by residential dwellings, including potential additional appraisals at the banks cost; mandates of additional collection and reporting requirements on transactions that are reportable under the Home Mortgage Disclosure Act; additional restrictions on the compensation of loan originators; and requirements that mortgage loan securitizers retain a certain amount of risk (as established by the regulatory agencies).  However, mortgages that conform to the new regulatory standards as "qualified residential mortgages" will not be subject to risk retention requirements.

Many aspects of the Dodd-Frank Act are subject to rulemaking by various regulatory agencies and will take effect over several years, making it difficult at this time to anticipate the overall financial impact of this expansive legislation on the Company, its customers or the financial industry generally.

Consumer Financial Protection Bureau

The Consumer Financial Protection Bureau (“CFPB”) was created under the Dodd-Frank Act to centralize responsibility for consumer financial protection with broad rulemaking, supervision and enforcement authority for a wide range of consumer protection laws that would apply to all banks and thrifts, including the Equal Credit Opportunity Act, Truth in Lending Act, Real Estate Settlement Procedures Act, Fair Credit Reporting Act, Fair Debt Collection Act, the Consumer Financial Privacy provisions of the Gramm-Leach-Bliley Act and certain other statutes. Banking institutions with total assets of $10.0 billion or

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less, such as the Bank, remain subject to the supervision and enforcement of their primary federal banking regulator with respect to the federal consumer financial protection laws and such additional regulations as may be adopted by the CFPB.

On January 10, 2013, the CFPB released its final “Ability-to-Repay/Qualified Mortgage” rules, which amend the Truth in Lending Act (Regulation Z). Regulation Z currently prohibits a creditor from making a higher-priced mortgage loan without regard to the consumer's ability to repay the loan. The final rule implements sections 1411 and 1412 of the Dodd-Frank Act, which generally require creditors to make a reasonable, good faith determination of a consumer's ability to repay any consumer credit transaction secured by a dwelling (excluding an open-end credit plan, timeshare plan, reverse mortgage, or temporary loan) and establishes certain protections from liability under this requirement for “qualified mortgages.” The final rule also implements section 1414 of the Dodd-Frank Act, which limits prepayment penalties. Finally, the final rule requires creditors to retain evidence of compliance with the rule for three years after a covered loan is consummated. This rule became effective January 10, 2014. The CFPB allowed for certain temporary exemptions for banks with assets under $2 billion and that originate less than 500 mortgage loans in 2013.

UDAP and UDAAP

Recently, banking regulatory agencies have increasingly used a general consumer protection statute to address “unethical” or otherwise “bad” business practices that may not necessarily fall directly under the purview of a specific banking or consumer finance law. The law of choice for enforcement against such business practices has been Section 5 of the Federal Trade Commission Act, referred to as the FTC Act, which is the primary federal law that prohibits unfair or deceptive acts or practices, referred to as UDAP, and unfair methods of competition in or affecting commerce. “Unjustified consumer injury” is the principal focus of the FTC Act. Prior to the Dodd-Frank Act, there was little formal guidance to provide insight to the parameters for compliance with UDAP laws and regulations. However, UDAP laws and regulations have been expanded under the Dodd-Frank Act to apply to “unfair, deceptive or abusive acts or practices,” referred to as UDAAP, which have been delegated to the CFPB for supervision. The CFPB has published its first Supervision and Examination Manual that addresses compliance with and the examination of UDAAP.

Incentive Compensation

In June 2010, the Federal Reserve Board, OCC and FDIC issued comprehensive final guidance on incentive compensation policies intended to ensure that the incentive compensation policies of banking organizations do not undermine the safety and soundness of such organizations by encouraging excessive risk-taking. The guidance, which covers all employees that have the ability to materially affect the risk profile of an organization, either individually or as part of a group, is based upon the key principles that a banking organization’s incentive compensation arrangements should (i) provide incentives that do not encourage risk-taking beyond the organization’s ability to effectively identify and manage risks, (ii) be compatible with effective internal controls and risk management, and (iii) be supported by strong corporate governance, including active and effective oversight by the organization’s board of directors.

The Federal Reserve Board will review, as part of the regular, risk-focused examination process, the incentive compensation arrangements of banking organizations, such as the Company, that are not “large, complex banking organizations.” The findings of the supervisory initiatives will be included in reports of examination. Enforcement actions may be taken against a banking organization if its incentive compensation arrangements, or related risk-management control or governance processes, pose a risk to the organization’s safety and soundness and the organization is not taking prompt and effective measures to correct the deficiencies.

In addition, the Dodd-Frank Act requires publicly traded companies to give stockholders a non-binding vote on executive compensation at least every three years and on so-called “golden parachute” payments in connection with approvals of mergers and acquisitions unless previously voted on by shareholders. The Dodd-Frank Act also directs the federal banking regulators to promulgate rules prohibiting excessive compensation paid to executives of depository institutions and their holding companies with assets in excess of $1.0 billion, regardless of whether the company is publicly traded or not. Finally, the Dodd-Frank Act gives the SEC authority to prohibit broker discretionary voting on elections of directors and executive compensation matters.

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Technology Risk Management and Consumer Privacy

State and federal banking regulators have issued various policy statements emphasizing the importance of technology risk management and supervision in evaluating the safety and soundness of depository institutions with respect to banks that contract with outside vendors to provide data processing and core banking functions. The use of technology-related products, services, delivery channels and processes exposes a bank to various risks, particularly operational, privacy, security, strategic, reputation and compliance risk. Banks are generally expected to prudently manage technology-related risks as part of their comprehensive risk management policies by identifying, measuring, monitoring and controlling risks associated with the use of technology.

Under Section 501 of the Gramm-Leach-Bliley Act, the federal banking agencies have established appropriate standards for financial institutions regarding the implementation of safeguards to ensure the security and confidentiality of customer records and information, protection against any anticipated threats or hazards to the security or integrity of such records and protection against unauthorized access to or use of such records or information in a way that could result in substantial harm or inconvenience to a customer. Among other matters, the rules require each bank to implement a comprehensive written information security program that includes administrative, technical and physical safeguards relating to customer information.

Under the Gramm-Leach-Bliley Act, a financial institution must also provide its customers with a notice of privacy policies and practices. Section 502 prohibits a financial institution from disclosing nonpublic personal information about a customer to nonaffiliated third parties unless the institution satisfies various notice and opt-out requirements and the customer has not elected to opt out of the disclosure. Under Section 504, the agencies are authorized to issue regulations as necessary to implement notice requirements and restrictions on a financial institution's ability to disclose nonpublic personal information about customers to nonaffiliated third parties. Under the final rule the regulators adopted, all banks must develop initial and annual privacy notices which describe in general terms the bank's information sharing practices. Banks that share nonpublic personal information about customers with nonaffiliated third parties must also provide customers with an opt-out notice and a reasonable period of time for the customer to opt out of any such disclosure (with certain exceptions). Limitations are placed on the extent to which a bank can disclose an account number or access code for credit card, deposit or transaction accounts to any nonaffiliated third party for use in marketing.

Other Operations and Consumer Compliance Laws

The Bank must comply with numerous federal anti-money laundering and consumer protection statutes and implement regulations, including but not limited to the Truth in Savings Act, Electronic Funds Transfer Act, Expedited Funds Availability Act, the USA PATRIOT Act of 2001, the Bank Secrecy Act, the Community Reinvestment Act, the Equal Credit Opportunity Act, the Truth in Lending Act, the National Flood Insurance Act and various other federal and state privacy protection laws. Failure to comply in any material respect with any of these laws could subject the Bank to lawsuits and could also result in administrative penalties, including fines and reimbursements. The Company and the Bank are also subject to federal and state laws prohibiting unfair or fraudulent business practices, untrue or misleading advertising and unfair competition. These laws and regulations mandate certain disclosure requirements and regulate the manner in which financial institutions must deal with customers when taking deposits, making loans, collecting loans, and providing other services. Failure to comply in any material respect with any of these laws and regulations could subject the Bank to various penalties, including but not limited to enforcement actions, injunctions, fines or criminal penalties, punitive damages to consumers, and the loss of certain contractual rights.

Regulatory Reform and Legislation

From time to time, various legislative and regulatory initiatives are introduced in Congress and state legislatures, as well as by regulatory agencies. Such initiatives may include proposals to expand or contract the powers of bank holding companies and depository institutions or proposals to substantially change the financial institution regulatory system. Such legislation could change banking statutes and the operating environment of the Company in substantial and unpredictable ways. If enacted, such legislation could increase or decrease the cost of doing business, limit or expand permissible activities or affect the competitive balance among banks, savings associations, credit unions, and other financial institutions. The Company cannot predict whether any such legislation will be enacted, and, if enacted, the effect that it, or any implementing regulations, would have on the financial condition or results of operations of the Company. A change in statutes, regulations or regulatory policies applicable to the Company or our subsidiaries could have a material effect on the Company’s business, financial condition and results of operations.

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Item 1A. Risk Factors

An investment in the Company’s common stock is subject to a variety of risks and uncertainties including, without limitation, to those set forth below, any of which could cause the Company's actual results to vary materially from recent results or from the Company's future results or other forward looking statements that the Company may make from time to time in news releases, annual reports and other written or oral communications.   The material risks and uncertainties that management believes affect the Company are described below.  These risks and uncertainties are not listed in any particular order of priority and are not necessarily the only ones facing the Company.  Additional risks and uncertainties that management is not aware of or focused on or that management currently deems immaterial may also impair the Company’s business and results of operations.

This report is qualified in its entirety by these risk factors.  If any of the following risks actually occur, the Company’s financial condition and results of operations could be materially and adversely affected.  If this were to happen, the value of the Company’s common stock could decline significantly, and shareholders could lose some or all of their investment.

The Company’s Profitability Depends Significantly on Economic Conditions in the Company’s Primary Market Areas

The Company’s success depends principally on the general economic conditions of the primary market areas in which the Company operates.  The local economic conditions in these regions have a significant impact on the demand for the Company’s products and services as well as the ability of the Company’s customers to repay loans, the value of the collateral securing loans and the stability of the Company’s deposit funding sources.

Any weakening in general economic conditions in the New England region, or any long-term deterioration of national and global economies, as well as any possible subsequent effects of negative trends, could weaken the regional economy and have long-term adverse consequences on local industries, employment levels, foreclosure rates and commercial real estate values, which could negatively impact the Company’s financial condition, capital position, liquidity, and performance in a variety of ways. Potential adverse effects on the Company could include the following: continued downward pressure on its net interest margin; deterioration in its asset quality; a decline in the underlying values of commercial and residential real estate collateral; an increased level of loan delinquencies; an increase in the level of its allowance for loan losses; a decline in the value of its investment portfolio; unanticipated charges against capital; restrictions on funding sources, which could adversely impact the Company’s ability to meet cash needs; and a decline in the market price of the Company’s common stock.

In addition to the consequences of a weakening economic environment, any significant and sustained decline in general economic conditions caused by national or global political situations, acts of terrorism, an outbreak of hostilities or other international or domestic occurrences, market interest rate changes, or other factors, could also impact local economic conditions and, in turn, have a material adverse effect on the Company’s financial condition and results of operations.

The Company is Subject to Extensive Government Regulation and Supervision

The Company is subject to extensive federal and state regulation and supervision.  Banking regulations are primarily intended to protect depositors’ funds, federal deposit insurance funds and the banking system as a whole, not the interests of shareholders.  These regulations affect the Company’s lending practices, capital structure, investment practices, dividend policy and growth, among other things.  Federal and state statutes and related regulations, including tax policy and corporate governance rules, can significantly affect the way in which bank holding companies, and public companies in general, conduct business. 

Changes to federal or state statutes, regulations or regulatory and tax policies, including changes in interpretation or implementation of new and existing statutes, regulations or policies, or new laws, regulation could affect the Company in substantial and unpredictable ways, including subjecting the Company to additional operating, tax, governance and compliance costs, increasing the Company’s deposit insurance premiums, limiting the types of assets the Company may be allowed hold, limiting the types of financial services and products the Company may offer and/or increasing competition from other non-bank providers of financial services.

The Dodd-Frank Act, implements significant changes to the regulation of the financial services industry and includes many reforms and provisions that have affected or are likely to affect the Company. Many aspects of the Dodd-Frank Act are subject to rulemaking by various regulatory agencies and will take effect over several years, making it difficult at this time to anticipate the overall financial impact of this expansive legislation on the Company, its customers or the financial industry generally.

The CFPB was created under the Dodd-Frank Act to centralize responsibility for consumer financial protection with broad rulemaking authority to administer and carry out the purposes and objectives of the “Federal consumer financial laws, and to

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prevent evasions thereof,” with respect to all financial institutions that offer financial products and services to consumers. The CFPB is also authorized to prescribe rules applicable to any covered person or service provider, identifying and prohibiting acts or practices that are “unfair, deceptive, or abusive” in connection with any transaction with a consumer for a consumer financial product or service, or the offering of a consumer financial product or service (“UDAAP authority”). The ongoing broad rulemaking powers of the CFPB and its UDAAP authority have potential to have significant impact on the operations of financial institutions offering consumer financial products or services.

In July 2013, the Federal Reserve Board, the FDIC and OCC, adopted a final rule that implements the Basel III changes to the international regulatory capital framework, referred to as the “Basel III Rules.” The Basel III Rules apply to both depository institutions and their holding companies (subject to certain exceptions not applicable to the Company). Although parts of the Basel III Rules apply only to large, complex financial institutions, substantial portions of the Basel III Rules apply to the Company and the Bank. The Basel III Rules generally become effective beginning January 1, 2015. The Basel III Rules set forth certain changes in the methods of calculating certain risk-weighted assets, which in turn will affect the calculation of risk based ratios. Under the Basel III Rules, higher or more sensitive risk weights would be assigned to certain categories of assets. The Basel III Rules also include new risk-based and leverage capital ratio requirements and refine the definition of what constitutes “capital” for purposes of calculating those ratios. The Basel III Rules also create a new common equity Tier 1 risk-based capital ratio. Common Equity Tier 1 capital will consist of retained earnings and common stock instruments, subject to certain adjustments. The Basel III Rules also establish a “capital conservation buffer” above the new regulatory minimum risk-based capital requirements. The new capital conservation buffer requirement is to be phased in beginning in January 2016 and will increase each year until fully implemented in January 2019. An institution would be subject to limitations on certain activities including payment of dividends, share repurchases and discretionary bonuses to executive officers if its capital level is below the buffer amount.

The Bank is subject to federal and state fair lending laws, and failure to comply with these laws could lead to material penalties. Federal and state fair lending laws and regulations, such as the Equal Credit Opportunity Act and the Fair Housing Act, impose nondiscriminatory lending requirements on financial institutions. The Department of Justice, CFPB and other federal and state agencies are responsible for enforcing these laws and regulations. Private parties may also have the ability to challenge an institution's performance under fair lending laws in private class action litigation. A successful challenge to the Bank's performance under the fair lending laws and regulations could adversely impact the Bank's rating under the Community Reinvestment Act and result in a wide variety of sanctions, including the required payment of damages and civil money penalties, injunctive relief, imposition of restrictions on merger and acquisition activity and restrictions on expansion activity, which could negatively impact the Bank's reputation, business, financial condition and results of operations.

The Company sells residential mortgage loans in the secondary mortgage market.  Potential changes to this market resulting from any possible government restrictions on, or restructuring of, the Federal National Mortgage Association ("FNMA") and the Federal Home Loan Mortgage Corporation ("FHLMC") or from any new regulations in this area, such as the CFPB's recently issued Ability-to-Repay and Qualified Mortgage rules, could impact the Company’s ability to generate and/or sell these loans.

See the section entitled “Supervision and Regulation” contained in Item 1, “Business,” for additional information regarding the supervisory and regulatory issues facing the Company.

The Company is Subject to Lending Risk

There are inherent risks associated with the Company’s lending activities.  These risks include, among other things, the impact of changes in the economic conditions in the market areas in which the Company operates and changes in interest rates.  In addition, the Company may be impacted by the following risk associated with its lending activities:

Commercial Lending Generally Involves a Higher Degree of Risk than Retail Residential Mortgage Lending

The Company’s loan portfolio consists primarily of commercial real estate, commercial and industrial, and commercial construction loans.  These types of loans are generally viewed as having more risk of default than owner-occupied residential real estate loans or consumer loans, and also typically have larger balances. The underlying commercial real estate values, the actual costs necessary to complete a construction project, or customer cash flow and payment expectations on such loans can be more easily influenced by adverse conditions in the related industries, the real estate market or in the economy in general. Any significant deterioration in the credit quality of the commercial loan portfolio or underlying collateral values could have a material adverse effect on the Company’s financial condition and results of operations.

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The Company May Need to Increase the Allowance for Loan Losses

The Company maintains an allowance for loan losses, which is established through a provision for loan losses charged to earnings, that represents management’s estimate of probable losses inherent within the existing portfolio of loans.  The determination of the appropriate level of the allowance for loan losses inherently involves a high degree of subjectivity and requires the Company to make significant estimates of current credit risks and trends, all of which may undergo material changes. In addition, bank regulatory agencies periodically review the Company’s allowance for loan losses and may require an increase in the provision for loan losses or the recognition of further loan charge-offs, based on judgments that differ from those of the Company’s management. While the Company strives to carefully monitor credit quality and to identify loans that may become non-performing, it may not be able to identify deteriorating loans before they become non-performing assets, or be able to limit losses on those loans that have been identified to be non-performing. Any increases in the allowance for loan losses will result in a decrease in net income and, depending upon the magnitude of the changes, could have a material adverse effect on the Company’s financial condition and results of operations.

See the discussions contained in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” under the heading “Allowance for Loan Losses,” which is contained in the “Critical Accounting Estimates” section and under the headings “Credit Risk/Asset Quality” and “Allowance for Loan Losses,” included in the section entitled “Financial Condition,” for further information regarding the process by which the Company determines the appropriate level of its allowance for loan losses.

Increases in the Company's Nonperforming Assets Could Adversely Affect the Company's Results of Operations and Financial Condition in the Future

Non-performing assets adversely affect net income in various ways. While the Company pays interest expense to fund non-performing assets, no interest income is recorded on non-accrual loans or other real estate owned, thereby adversely affecting income and returns on assets and equity. In addition, loan administration and workout costs increase, resulting in additional reductions of earnings. When taking collateral in foreclosures and similar proceedings, the Company is required to carry the property or loan at its then-estimated fair market value less estimated cost to sell, which, when compared to the carrying value of the loan, may result in a loss. These non-performing loans and other real estate owned also increase the Company's risk profile and the capital that regulators believe is appropriate in light of such risks, and have an impact on the Company's FDIC risked based deposit insurance premium rate. The resolution of non-performing assets requires significant time commitments from management and staff. The Company may experience further increases in non-performing loans in the future, and non-performing assets may result in further costs and losses in the future, either of which could have a material adverse effect on the Company's financial condition and results of operations.

The Company's Use of Appraisals in Deciding Whether to Make a Loan Secured by Real Property Does Not Ensure the Value of the Real Property Collateral

In considering whether to make a loan secured by real property, the Company generally requires an independent appraisal of the property. However, an appraisal is only an estimate of the value of the property at the time the appraisal is made, and an error in fact or judgment could adversely affect the reliability of an appraisal. In addition, events occurring after the initial appraisal may cause the value of the property to decrease. As a result of any of these factors, the value of collateral backing a loan may be less than estimated at the time of appraisal, and if a default occurs the Company may not recover the outstanding balance of the loan.

The Company is Subject to Environmental Risks Associated with Owning Real Estate or Collateral

The cost of cleaning up or paying damages and penalties associated with environmental problems could increase the Company's operating expenses. When a borrower defaults on a loan secured by real property, the Company may purchase the property in foreclosure or accept a deed to the property surrendered by the borrower. The Company may also take over the management of commercial properties whose owners have defaulted on loans. The Company also owns and lease premises where branches and other bank facilities are located. While the Company's lending, foreclosure and facilities policies and guidelines are intended to exclude properties with an unreasonable risk of contamination, hazardous substances could exist on some of the properties that the Company may own, acquire, manage or occupy. Environmental laws could force the Company to clean up the properties at the Company's expense. It may cost much more to clean a property than the property is worth and it may be difficult or impossible to sell contaminated properties. The Company could also be liable for pollution generated by a borrower's operations if the Company takes a role in managing those operations after a default.

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See the discussions contained in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” under the headings “Loans” and “Credit Risk/Asset Quality” included in the section entitled “Financial Condition,” for further information regarding the Company’s commercial loan portfolio and credit risk.

The Company’s Investment Portfolio Could Incur Losses

There are inherent risks associated with the Company’s investment activities.  These risks include the impact of changes in interest rates, weakness in the real estate or other industries, adverse changes in regional or national economic conditions, and general turbulence in domestic and foreign financial markets, among other things.  These conditions could adversely impact the fair market value and/or the ultimate collectability of the Company’s investments. In addition to fair market value impairment, carrying values may be adversely impacted due to a fundamental deterioration of the individual municipality, government agency, or corporation whose debt obligations the Company owns or of the individual company or fund in which the Company has invested.

If an investment’s value is deemed other than temporarily impaired, then the Company is required to write down the carrying value of the investment which may involve a charge to earnings.  The determination of the level of OTTI involves a high degree of judgment and requires the Company to make significant estimates of current market risks and future trends, all of which may undergo material changes.  Any OTTI charges, depending upon the magnitude of the charges, could have a material adverse effect on the Company’s financial condition and results of operations.

As a member of the FHLB, the Company is required to purchase certain levels of FHLB capital stock in association with the Company's borrowing relationship from the FHLB. This stock is classified as a restricted investment and carried at cost, which management believes approximates fair value. FHLB stock represents the only restricted investment held by the Company. If negative events or deterioration in the FHLB financial condition or capital levels occurs, the Company's investment in FHLB capital stock may become other than temporarily impaired to some degree.

See the discussions contained in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” under the heading “Impairment Review of Securities,” which is contained in the “Critical Accounting Estimates” section, Note 1, "Summary of Significant Account Policies" under Item c and d and Note 2, "Investments” to the consolidated financial statements in Item 8 below for further information regarding the process by which the Company determines the level of other-than-temporary impairment. See also the discussion contained in this Item 1A under the heading “Sources of External Funding May Become Restricted and Impact the Company's Liquidity.”

The Carrying Value of the Company’s Goodwill Could Become Impaired

In accordance with generally accepted accounting principles, the Company does not amortize goodwill and instead, at least annually, evaluates whether the carrying value of goodwill has become impaired. Impairment of the goodwill may occur when the estimated fair value of the Company is less than its recorded book value (i.e., the net book value of its recorded assets and liabilities). This may occur, for example, when the estimated fair value of the Company declines due to changes in the assumptions and inputs used in management’s estimate of fair value.  A determination that goodwill has become impaired results in an immediate write-down of goodwill to its determined value with a resulting charge to operations.  Any write down of goodwill will result in a decrease in net income and, depending upon the magnitude of the charge, could have a material adverse effect on the Company’s financial condition and results of operations.

See the discussions contained in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” under the heading “Impairment Review of Goodwill,” which is contained in the “Critical Accounting Estimates” section, for further information regarding the process by which the Company determines whether  an impairment of goodwill has occurred.

The Company is Subject to Interest Rate Risk

The Company’s earnings and cash flows are largely dependent upon its net interest income, meaning the difference between interest income earned on interest-earning assets and interest expense paid on interest-bearing liabilities.  Interest rates are highly sensitive to many factors that are beyond the Company’s control, including monetary policy of the federal government, inflation and deflation, volatility of domestic and global financial markets, volatility of credit markets, and competition.  If the interest rates paid on interest-bearing liabilities increase at a faster rate than the interest rates received on loans and other investments, the Company’s net interest income, and therefore earnings, could be adversely affected.  Earnings could also be adversely affected if the interest rates received on loans and other investments fall more quickly than the interest rates paid on interest-bearing liabilities.

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See Item 7A, “Quantitative and Qualitative Disclosures about Market Risk,” for further discussions related to the Company’s management of interest rate risk.

Deposit Outflows May Increase Reliance on Borrowings and Brokered Deposits as Sources of Funds

The Company has traditionally funded asset growth principally through deposits and borrowings.  As a general matter, deposits are typically a lower cost source of funds than external wholesale funding (brokered deposits and borrowed funds), because interest rates paid for deposits are typically less than interest rates charged for wholesale funding (notwithstanding current low wholesale rates).  If, as a result of competitive pressures, market interest rates, alternative investment opportunities that present more attractive returns to customers, general economic conditions or other events, the balance of the Company’s deposits decreases relative to the Company’s overall banking operations, the Company may have to rely more heavily on wholesale funding in the future.  Any such increased reliance on wholesale funding could have a negative impact on the Company’s net interest income and, consequently, on its results of operations and financial condition.

See the discussions contained in the section entitled “Other Sources of Funds” contained in Item 1, “Business,” and in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” under the heading “Liquidity,” which is included in the section entitled “Financial Condition” for further information regarding the Company’s sources of contingent liquidity.

Sources of External Funding Could Become Restricted and Impact the Company’s Liquidity

The Company’s external wholesale funding sources include borrowing capacity at the FHLB and FRB, capacity in the brokered deposit markets, and through other borrowing arrangements with correspondent banks, as well as accessing the public equity market through offerings of the Company’s stock. The Company has, in the past, also raised funds through the issuance of trust preferred securities, which was a common means of raising capital and providing liquidity previously used by many large and small banking organizations.  If, as a result of general economic conditions or other events, these sources of external funding become restricted or are eliminated, the Company may not be able to raise adequate funds or may incur substantially higher funding costs or operating restrictions in order to raise the necessary funds to support the Company's operations and growth. Any such increase in funding costs or restrictions could have a negative impact on the Company’s net interest income and, consequently, on its results of operations and financial condition.

See the discussions contained in the section entitled “Other Sources of Funds” contained in Item 1, “Business,” and in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” under the heading “Liquidity,” which is included in the section entitled “Financial Condition” for further information regarding the Company’s sources of contingent liquidity.

The Company’s Capital Levels Could Fall Below Regulatory Minimums

The Company and the Bank are both subject to the capital adequacy guidelines of the Federal Reserve Board and FDIC, respectively.  Failure to meet applicable minimum capital ratio requirements (including the new capital conservation "buffer" imposed by Basel III) may subject the Company and/or the Bank to various enforcement actions and restrictions, including among others, restrictions on the ability to open new branches and pay dividends.  If the Company’s capital levels decline, or if regulatory requirements increase, and the Company is unable to raise additional capital to offset that decline, then its capital ratios may fall below regulatory capital adequacy levels.  The Company’s capital level could decline due to it experiencing rapid asset growth, or due to other factors, such as, by way of example only, possible future net operating losses, impairment charges against tangible or intangible assets, or adjustments to retained earnings due to changes in accounting rules.

The Company's failure to remain “well capitalized” for bank regulatory purposes could affect customer confidence, restrict the Company's ability to grow, increase the Company's costs of funds and FDIC insurance costs, prohibit the Company's ability to pay dividends on common shares, and its ability to make acquisitions, and impact the Company's business, results of operation and financial conditions, generally. Under FDIC rules, if the Bank ceases to be a “well capitalized” institution for bank regulatory purposes, its ability to accept brokered deposits may be restricted, and the interest rates that it pays may be restricted.

See the sections entitled “Supervision and Regulation” and “Capital Resources” contained in Item 1, “Business,” for additional information regarding regulatory capital requirements for the Company and the Bank and new capital requirement under Basel III regulatory capital and liquidity standards.

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The Investment Management Fees the Company Receives May Decrease as a Result of a Decline in Aggregate Assets Under Management, Which Could Decrease Revenues and Net Earnings

A decline in the aggregate balance of the assets under management could decrease investment advisory fee income and the Company's net earnings. The Company's Enterprise Investment Advisors and Enterprise Investment Services channels derive their revenues primarily from investment management fees based on assets under management. Investment advisory and wealth management clients can terminate their relationships with us, reduce their aggregate assets under management, or shift their funds to other types of accounts with different rate structures for any number of reasons. The Company's ability to maintain or increase investment assets under management is subject to a number of factors, including changes in investment preferences of clients, changes in our reputation in the marketplace, change in management or control of clients, loss of key investment management personnel, our ability to maintain customer service levels, competition from investment management companies and alternative investment options, investors' perception of our past investment performance, in either relative or absolute terms, fluctuations in financial markets and various economic conditions.

Investment performance is one of the most important factors in retaining existing clients and competing for new wealth management clients. Poor investment performance, or to the extent our future investment performance is perceived to be poor, in either relative or absolute terms, could impair our ability to attract and retain funds from existing and new clients. Financial markets are affected by many factors, all of which are beyond our control, including general economic conditions, securities market conditions, the level and volatility of interest rates and equity prices, among many other factors. Even when market conditions are generally favorable, our investment performance may be adversely affected by the investment style of our wealth management and investment advisors and the particular investments that they make.

The Use of Independent Investment Research Firms Expose the Company to Additional Risk

The Company relies on outside investment research and due diligence information, which is provided by several professional independent investment research firms, in selecting both independent management firms and individual securities for the Company’s investment advisory clients.   These firms are subject to a variety of risks and uncertainties, including significant exposures to changes in financial market conditions, including the impact of changes in interest rates, adverse changes in regional or national economic conditions, and general turbulence in domestic and foreign financial markets, among other things, which could adversely impact the fair market value of customer portfolios.  Additionally, these firms are subject to risk associated with poor investment decisions, turnover in key personnel, internal and external securities fraud, information security or data breach, and financial losses, among others.  Any risk that affects these independent firms could in turn expose the Company itself to various risks.  The risks to the Company include but are not limited to, the loss of customer business, damage to the Company’s reputation, exposure of the Company to civil litigation and possible financial liability, and a reduction in fee income, any of which could have a material adverse effect on the Company’s financial condition and results of operations.

The Company Operates in a Competitive Industry and Market Area

The Company faces substantial competition in all areas of its operations from a variety of different competitors, several of which are larger and have more financial resources than the Company.  Competitors within the Company’s market area include not only national, regional, other community banks and internet based banks, but also various types of other non-bank financial institutions, including credit unions, consumer finance companies, mortgage brokers and lenders, as well as private lenders, insurance companies, securities brokerage firms, institutional mutual funds, registered investment advisors, and other financial intermediaries and non-bank electronic payment and funding channels. Additionally, some of these competitors are not subject to the same degree of regulation as the Company and thus may have a competitive advantage over the Company. If, due to the inability to compete successfully within the Company's target banking markets, the Company encounters difficulties attracting and retaining customers, it would have a material adverse effect on the Company's growth and profitability.

See the section entitled “Competition” contained in Item 1, “Business,” for additional information regarding the competitive issues facing the Company.

Controls and Procedures Could Fail or Be Circumvented by Theft, Fraud or Robbery

Management regularly reviews and updates the Company’s internal controls over financial reporting, corporate governance policies and procedures and security controls, including information and physical security, to prevent and detect theft, fraud or robbery from both internal and external sources.  Any system of controls, however well designed and operated, is based in part on certain assumptions and can provide only reasonable, not absolute, assurances that the objectives of the system are met.  Any failure or circumvention of the Company’s controls and procedures, or failure to comply with regulations related to controls and procedures, or a physical theft or robbery, whether by employees, management, directors, or external elements could result in loss of assets, regulatory actions against the Company, financial loss, damage the Company’s reputation, cause a

27

loss of customer business, and expose the Company to civil litigation and possible financial liability, any of which could have a material adverse effect on the Company’s business, results of operations and financial condition.

See the discussion under the heading “Opportunities and Risks” which is contained in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” for further information regarding the Company’s operational risk management.

Failure to Keep Pace With Technological Change Could Affect the Company’s Profitability

The banking industry is continually undergoing rapid technological change with frequent introductions of new technology-driven products, services and delivery channels. The effective use of technology increases efficiency and enables financial institutions to better serve customers and to reduce costs.  Several of the Company’s competitors have substantially greater resources to invest in technological improvements.  Failure to successfully plan, manage and keep pace with technological changes affecting the banking industry could have a material adverse effect on the Company’s business and, in turn, the Company’s financial condition and results of operations.

Information Systems Could Experience an Interruption or Breach in Security

The use of technology-related products, services, delivery channels, access points and processes exposes the Company to various risks, particularly operational, privacy, security, strategic, reputation and compliance risk. Banks are generally expected to prudently manage technology-related risks as part of their comprehensive risk management policies by identifying, measuring, monitoring and controlling risks associated with the use of technology.

The Company relies heavily on communications and information systems to conduct its business.  The occurrence of any failures, interruptions or security breaches of the Company’s communication or information systems or access points could disrupt the Company’s ability to conduct business and process transactions for an indeterminable length of time.  The Company's electronic service delivery channels may experience an intentional interruption or malicious increase in superfluous activity which could deny the customers' ability to access services for an indeterminable length of time.

The Company also relies on independent firms to provide key services necessary to conducting its business.  These services include, but are not limited to: electronic funds delivery networks; check clearing houses; electronic banking services; investment advisory, management and custodial services; correspondent banking services; information security assessments; and loan underwriting and review services.  As such, these independent firms may have access to customers' personal information. The occurrence of any failures, interruptions or security breaches of the independent firms’ systems or in their delivery of services, could also impact the Company's ability to conduct business and process transactions.

Additionally, any failure or breach of customers’ home, business or mobile information system could also possibly impact the integrity of the Company’s information systems. 

These information systems, in general, rely heavily on infrastructures such as electrical grids, voice and data communication, and internet server networks, which could be subject to failures or disruptions as a result of natural disasters, power or telecommunications disruptions, acts of terrorism or war, physical or electronic security breaches, or similar events or disruptions.

Any breakdown in the integrity of these information systems or infrastructure, or the Company's inability to identify, respond and correct such breakdown, could result in a loss of customer business, expose customers’ personal information to unauthorized parties, damage the Company’s reputation, subject the Company to additional regulatory scrutiny, and expose the Company to civil litigation and possible financial liability, any of which could have a material adverse effect on the Company’s financial condition and results of operations.

See the discussion under the heading “Opportunities and Risks” which is contained in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” for further information regarding the Company’s information security and technology practices and the Company’s Business Continuity Plan.

The Company May Experience a Prolonged Interruption in its Ability to Conduct Business

The Company relies heavily on its personnel, facilities, information systems and third party service providers to conduct its business.  A material loss of people, core operating facilities, access to information systems or infrastructure, or failure of key service providers to perform in accordance with contracted service level agreements, for any number of reasons, could result in

28

an interruption in customer services and ability to conduct transactions, loss of customer business and damage the reputation of the Company, any of which may have a material adverse effect on the Company’s financial condition and results of operations.

See the discussion under the heading “Opportunities and Risks” which is contained in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” for further information regarding the Company’s Business Continuity Plan.

The Company May Not be Able to Attract, Retain or Develop Key Personnel

The Company’s success depends, in large part, on its ability to attract and retain key personnel.  Competition for the best people in most activities engaged in by the Company can be intense and the Company may not be able to hire or retain the key personnel that it depends upon for success.  The unexpected loss of key personnel or the inability to identify and develop individuals for planned succession to key senior positions within management, or on the board of directors, could have a material adverse impact on the Company’s business because the loss of their skills, knowledge of the Company’s market, years of industry or business experience and the difficulty of promptly finding qualified replacement personnel.

Slower than Expected Growth in New Branches and Products Could Adversely Affect the Company’s Profitability

The Company has placed a strategic emphasis on expanding the Bank’s branch network and market share.  Executing this strategy carries risks of slower than anticipated growth in new branches or new geographic market areas.  New branches and new products and services require a significant investment of both financial and personnel resources.  Lower than expected loan and deposit growth in new branches and/or lower than expected fee or other income generated from new branches could decrease anticipated revenues, increase costs and reduce net income generated by such investments. In addition, branch openings, relocations and closings require the approval of various state and federal regulatory agencies, which may or may not approve the Company’s application for a branch. Opening new branches in existing markets or new market areas could also divert resources from current core operations and thereby further adversely affect the Company’s growth and profitability.

Growth Strategies Involving Acquisitions Could Adversely Affect the Company’s Profitability

The Company may, in the future, explore growth opportunities through acquisition of other banks, financial services companies or lines of business.  These activities would involve a number of risks, including, but not limited to: the potential inaccuracy of the estimates and judgments used to evaluate credit, operations, management, and market risks with respect to a targeted institution; the time and costs of evaluating new markets, hiring or retaining experienced local management, and opening new offices and the time lags between these activities and the generation of sufficient assets and deposits to support the costs of the expansion; the incurrence and possible impairment of goodwill associated with an acquisition and possible adverse effects on the Company's results of operations; and the risk of loss of key employees and customers.

Any future acquisition could adversely affect the Company’s profitability based on management’s ability to successfully complete the acquisition and integration of the acquired business.

Damage to the Company’s Reputation Could Affect the Company’s Profitability and Shareholders’ Value

The Company is dependent on its reputation within its market area, as a trusted and responsible financial company, for all aspects of its business with customers, employees, vendors, third-party service providers, and others, with whom the Company conducts business or potential future business.  Any negative publicity, whether real or perceived, disseminated by word of mouth, by the general media, by electronic or social networking means, or by other methods, regarding, among other things, the Company’s current or potential business practices or activities, an inability to meet obligations, employees, management or directors’ ethical standards or actions, or about the banking industry in general, could harm the Company’s reputation.   Any damage to the Company’s reputation could affect its ability to retain and develop the business relationships necessary to conduct business which in turn could negatively impact the Company’s financial condition, results of operations and the market price of the Company’s common stock.

The Company is Exposed to Legal Claims and Litigation

The Company is subject to legal challenges under a variety of circumstances in the course of its normal business practices in regards to laws and regulations, duties, use of technology and patents, operational practices and those of contracted third party service providers and vendors, and shareholder matters. Regardless of the scope or the merits of any claims by potential or actual litigants, the Company may have to engage in litigation that could be expensive, time-consuming, disruptive to our operations, and distracting to management. Whether claims or legal action are founded or unfounded, if such claims and legal actions are not resolved in a manner favorable to the Company, they may result in significant financial liability, damage the Company’s reputation, subject the Company to additional regulatory scrutiny and restrictions, and/or adversely affect the market perception of our products and services as well as impact customer demand for those products and services. Any

29

financial liability or reputation damage could have a material adverse effect on our business, which in turn, could have a material adverse effect on our financial condition and results of operations.

The Trading Volume in the Company’s Common Stock is Less Than That of Larger Companies

Although the Company’s common stock is listed for trading on the NASDAQ Global Market, the trading volume in the Company’s common stock is substantially less than that of larger companies.  Given the lower trading volume of the Company’s common stock, significant purchases or sales of the Company’s common stock, or the expectation of such purchases or sales, could cause significant swings up or down in the Company’s stock price.

The Market Price of the Company’s Common Stock Could be Affected by General Industry Issues

The banking industry may be more affected than other industries by certain economic, credit, regulatory or information security issues.  Although the Company itself may or may not be directly impacted by such issues, the Company’s stock price may swing up or down due to the influence, both real and perceived, of these issues, among others, on the banking industry in general. Investment in the Company's stock is not insured against loss by the FDIC, or any other public or private entity. As a result, and for the other reasons described in this “Risk Factors” section and elsewhere in this Report, if you acquire our common stock, you may lose some or all of your investment.

Shareholder Dilution Could Occur if Additional Stock is Issued in the Future

If the Company’s Board of Directors should determine in the future that there is a need to obtain additional capital through the issuance of additional shares of the Company’s common stock or securities convertible into shares of common stock, such issuances could result in dilution to existing shareholders’ ownership interest. Similarly, if the Board of Directors decides to grant additional restricted stock shares or options for the purchase of shares of common stock, the issuance of such additional restricted stock shares and/or the issuance of additional shares upon the exercise of such options may expose shareholders to dilution.

Changes in Accounting Standards Could Materially Impact the Company's Financial Condition and Results of Operations From time to time, the Financial Accounting Standards Board changes the accounting and reporting standards that govern the recording of financial transactions and preparation of financial statements. Future changes may be difficult to implement and may materially impact how the Company records and reports its financial transactions, financial condition, results of operations and could impact the Company's business activities and strategy.

The Company's Financial Condition and Results of Operation Rely in Part on Management Estimates and Assumptions

In preparing the financial statements in conformity with U.S. generally accepted accounting principles ("GAAP"), management is required to exercise judgment in determining many of the methodologies, estimates and assumptions to be utilized.  These estimates and assumptions affect the reported values of assets and liabilities at the balance sheet date and income and expenses for the years then ended.  Changes in those estimates resulting from continuing change in the economic environment and other factors will be reflected in the financial statements and results of operations in future periods.  As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates and be adversely affected should the assumptions and estimates used be incorrect, or change over time due to changes in circumstances.

The Company’s Articles Of Organization, By-Laws and Shareholders Rights Plan as Well as Certain Banking and Corporate Laws Could Have an Anti-Takeover Effect

Provisions of the Company’s articles of organization and by-laws, its shareholders rights plan and certain federal and state banking laws and state corporate laws, including regulatory approval requirements for any acquisition of control of the Company, could make it more difficult for a third party to acquire the Company, even if doing so would be perceived to be beneficial to the Company’s shareholders.  The combination of these provisions effectively inhibits a non-negotiated merger or other business combination involving an acquisition of the Company, which, in turn, could adversely affect the market price of the Company’s common stock.

Directors and Executive Officers Own a Significant Portion of Common Stock

The Company’s directors and executive officers, as a group, beneficially own approximately 26% of the Company’s outstanding common stock as of December 31, 2013. As a result of this combined ownership interest, the directors and executive officers have the ability, if they vote their shares in a like manner, to significantly influence the outcome of all matters submitted to shareholders for approval, including the election of directors.

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The Company Relies on Dividends from the Bank for Substantially All of its Revenue

The Company is a separate and distinct legal entity from the Bank.  It receives substantially all of its revenue from dividends paid by the Bank.  These dividends are the principal source of funds used to pay dividends on the Company’s common stock and interest and principal on the Company’s subordinated debt.  Various federal and state laws and regulations limit the amount of dividends that the Bank may pay to the Company.  If the Bank is unable to pay dividends to the Company, then the Company will be unable to service debt, pay obligations or pay dividends on the Company’s common stock.  The Bank’s inability to pay dividends could have a material adverse effect on the Company’s business, financial condition, results of operations and the market price of the Company’s common stock.

 See the discussion under the heading “Dividends” which is contained in Item 5, “Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities” below.

Additional Factors Described Elsewhere in This Report

In addition to the factors listed above in this section, additional important factors that could adversely affect the results of the Company’s future operations are described below under the heading “Special Note Regarding Forward-Looking Statements” contained in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

The Company's main office and operational support and lending offices are located in Lowell, Massachusetts. The main Lowell campus consists of three buildings, two of which are owned and the other leased, with ample onsite parking.  In the fourth quarter of 2013, the Company entered into a lease agreement for additional space in Lowell to expand its headquarters. The Company also owns and maintains a back-up operations facility in the Merrimack Valley region in Massachusetts. As of December 31, 2013, the Company had 22 full service branch banking offices serving the Merrimack Valley and North Central regions of Massachusetts and Southern New Hampshire. Of these branches, 14 are leased and 8 are owned. The Company believes that all its facilities are well maintained and suitable for the purpose for which they are used.

The Company's leased facilities are contracted under various non-cancelable operating leases, most of which provide options to extend lease periods and periodic rent adjustments. Several leases provide the Company the right of first refusal should the property be offered for sale or purchase options at specified periods mutually agreeable to the parties.

See note 5, “Premises and Equipment” to the consolidated financial statements in Item 8 below, for further information regarding the Company’s lease obligations listed above.

Item 3. Legal Proceedings

There are no material pending legal proceedings to which the Company or its subsidiaries are a party or to which any of its property is subject, other than ordinary routine litigation incidental to the business of the Company. Management does not believe resolution of any present litigation will have a material adverse effect on the consolidated financial condition or results of operations of the Company.

Item 4. Mine Safety Disclosures

Not Applicable.

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Market for Common Stock

 The Company’s common stock trades on the NASDAQ Global Market under the trading symbol “EBTC”.

The following table sets forth sales volume and price information, to the best of management’s knowledge, for the common stock of the Company for the periods indicated.

Fiscal Year	Trading Volume	Share Price High		Share Price Low
2013
4th Quarter	906,732	$	21.90	$	17.62
3rd Quarter	1,094,330	22.59		17.41
2nd Quarter	627,395	18.68		15.60
1st Quarter	434,014	17.63		15.75
2012
4th Quarter	637,268	$	18.19	$	15.42
3rd Quarter	974,541	17.50		14.84
2nd Quarter	577,696	16.88		14.49
1st Quarter	501,364	18.00		14.01

As of March 3, 2014, there were 978 registered shareholders of the Company’s common stock and 10,036,489 shares of the Company’s common stock outstanding.

Dividends

In 2013, quarterly dividends of $0.115 per share were paid to the Company's stockholders in March, June, September and December.  Total 2013 dividends of $0.46 per share represented an increase of 4.5% compared to total dividends of $0.44 paid to the Company's stockholders on a quarterly basis in 2012.

The Company maintains a dividend reinvestment plan (the “DRP”).  The DRP enables stockholders, at their discretion, to elect to reinvest dividends paid on their shares of the Company’s common stock by purchasing additional shares of common stock from the Company at a purchase price equal to fair market value. Stockholders utilized the DRP to reinvest $1.2 million, of the $4.5 million total dividends paid by the Company in 2013, into 69,633 shares of the Company’s common stock.

On January 21, 2014, the Company announced a quarterly dividend of $0.12 per share, paid on March 3, 2014 to stockholders of record as of February 10, 2014. On an annualized basis, this quarterly dividend represents a 4.3% increase over the 2013 dividend rate.

As the principal asset of the Company, the Bank currently provides the only source of cash for the payment of dividends by the Company.  Under Massachusetts law, trust companies such as the Bank may pay dividends only out of “net profits” and only to

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the extent that such payments will not impair the Bank’s capital stock.  Any dividend payment that would exceed the total of the Bank’s net profits for the current year plus its retained net profits of the preceding two years would require the Massachusetts Division of Banks' approval. Applicable provisions of the FDIA also prohibits a bank from paying any dividends on its capital stock if the bank is in default on the payment of any assessment to the FDIC or if the payment of dividends would otherwise cause the bank to become undercapitalized.  These restrictions on the ability of the Bank to pay dividends to the Company may restrict the ability of the Company to pay dividends to the holders of its common stock.

The statutory term “net profits” essentially equates with the accounting term “net income” and is defined under the Massachusetts banking statutes to mean the remainder of all earnings from current operations plus actual recoveries on loans and investments and other assets after deducting from such total all current operating expenses, actual losses, accrued dividends on any preferred stock and all federal and state taxes.

Securities Authorized for Issuance under Equity Compensation Plans

The following table provides information as of December 31, 2013 with respect to the Company’s 2003 Stock Incentive Plan, as amended, and 2009 Stock Incentive Plan, as amended, which together constitute all of the Company’s existing equity compensation plans that have been previously approved by the Company’s stockholders.  The 2003 Plan is closed to future grants, although several awards previously granted under this plan remain outstanding and may be exercised in the future.  The Company does not have any existing equity compensation plans, including any existing individual equity compensation arrangements, which have not been previously approved by the Company’s stockholders.

Plan Category	Number of Securities to be issued upon exercise of outstanding options, warrants and rights	Weighted-average exercise price of outstanding options, warrants and rights		Number of Securities remaining available for future issuance under equity compensation plans (excluding securities reflected in second column from left)
Equity compensation plans approved by security holders	417,352	$	14.32	400,301
Equity compensation plans not approved by security holders	—	—		—
TOTAL	417,352	$	14.32	400,301

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Performance Graph

The following graph compares the cumulative total return (which assumes the reinvestment of all dividends) on the Company’s common stock with the cumulative total return reflected by a broad based equity market index and an appropriate published industry index.  This graph shows the changes over the five-year period ended on December 31, 2013 in the value of $100 invested in (i) the Company’s common stock, (ii) the Standard & Poor's 500 Index, and (iii) the SNL Bank $1B to $5B index.

	Period Ending
Index	12/31/08		12/31/09		12/31/10		12/31/11		12/31/12		12/31/13
Enterprise Bancorp, Inc.	$	100.00	$	100.21	$	128.94	$	139.32	$	165.30	$	217.40
S&P 500 Index	100.00		126.46		145.51		148.59		172.37		228.19
SNL Bank $1B - $5B Index	100.00		71.68		81.25		74.10		91.37		132.87

Sales of Unregistered Securities and Repurchases of Shares

The Company has not sold any equity securities that were not registered under the Securities Act of 1933, as amended, during the year ended December 31, 2013.  Neither the Company nor any “affiliated purchaser” (as defined in the SEC’s Rule 10b-18(a) (3)) has repurchased any of the Company’s outstanding shares, nor caused any such shares to be repurchased on its behalf, during the fiscal year ended December 31, 2013.

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Item 6. Selected Financial Data

	Year Ended December 31,
(Dollars in thousands, except per share data)	2013			2012			2011			2010			2009
EARNINGS DATA
Net interest income	$	65,791		$	61,910		$	58,326		$	54,971		$	48,446
Provision for loan losses	3,279			2,750			5,197			5,137			4,846
Net interest income after provision for loan losses	62,512			59,160			53,129			49,834			43,600
Non-interest income	12,553			11,939			11,154			10,602			9,497
Other than temporary impairment on investment securities	—			—			(3		)	(8		)	(797		)
Net gains on sales of investment securities	1,239			236			791			875			1,487
Non-interest expense	55,824			52,612			48,966			45,589			42,623
Income before income taxes	20,480			18,723			16,105			15,714			11,164
Provision for income taxes	6,951			6,348			5,161			5,074			3,218
Net income	$	13,529		$	12,375		$	10,944		$	10,640		$	7,946
COMMON SHARE DATA
Basic earnings per share	$	1.37		$	1.29		$	1.16		$	1.15		$	0.96
Diluted earnings per share	1.36			1.28			1.16			1.15			0.96
Book value per share at year end	15.14			14.42			13.45			12.56			11.84
Dividends paid per share	$	0.46		$	0.44		$	0.42		$	0.40		$	0.38
Basic weighted average shares outstanding	9,862,678			9,586,783			9,401,714			9,216,524			8,268,502
Diluted weighted average shares outstanding	9,950,609			9,660,676			9,445,725			9,221,257			8,279,126
YEAR END BALANCE SHEET AND OTHER DATA
Total assets	$	1,849,925		$	1,665,726		$	1,489,163		$	1,397,321		$	1,304,001
Loans serviced for others	72,711			75,854			67,367			63,807			53,659
Investment assets under management	667,330			592,355			505,163			493,078			433,043
Total assets under management	$	2,589,966		$	2,333,935		$	2,061,693		$	1,954,206		$	1,790,703
Total loans	$	1,524,056		$	1,359,655		$	1,245,428		$	1,136,938		$	1,082,452
Allowance for loan losses	26,967			24,254			23,160			19,415			18,218
Investment securities	215,369			184,464			140,405			142,060			134,369
Interest-earning deposits and fed funds	12,371			14,728			8,900			28,711			6,835
Deposits	1,635,992			1,475,027			1,333,158			1,244,071			1,144,948
Borrowed funds	36,534			26,540			4,494			15,541			24,876
Junior subordinated debentures	10,825			10,825			10,825			10,825			10,825
Total stockholders’ equity	151,334			139,549			127,448			116,673			107,664
RATIOS
Return on average total assets	0.78		%	0.78		%	0.75		%	0.78		%	0.64		%
Return on average stockholders’ equity	9.32		%	9.27		%	8.98		%	9.42		%	8.30		%
Allowance for loan losses to total loans	1.77		%	1.78		%	1.86		%	1.71		%	1.68		%
Stockholders’ equity to total assets	8.18		%	8.38		%	8.56		%	8.35		%	8.26		%
Dividend payout ratio	33.58		%	34.11		%	36.21		%	34.78		%	39.58		%

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Management’s discussion and analysis should be read in conjunction with the Company’s consolidated financial statements and notes thereto, contained in Item 8, the information contained in the description of the Company’s business in Item 1 and other financial and statistical information contained in this annual report.

Special Note Regarding Forward-Looking Statements

This report contains certain “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, including statements concerning plans, objectives, future events or performance and assumptions and other statements that are other than statements of historical fact. Forward-looking statements may be identified by reference to a future period or periods or by use of forward-looking terminology such as “anticipates,” “believes,” “expects,” “intends,” “may,” “plans,” “pursue,” “views” and similar terms or expressions. Various statements contained in Item 7 - “Management's Discussion and Analysis of Financial Condition and Results of Operations” and Item 7A - “Quantitative and Qualitative Disclosures About Market Risk,” including, but not limited to, statements related to management's views on the banking environment and the economy, competition and market expansion opportunities, the interest rate environment, credit risk and the level of future non-performing assets and charge-offs, potential asset and deposit growth, future non-interest expenditures and non-interest income growth, and borrowing capacity are forward-looking statements. The Company wishes to caution readers that such forward-looking statements reflect numerous assumptions and involve a number of risks and uncertainties that may adversely affect the Company's future results. The following important factors, among others, could cause the Company's results for subsequent periods to differ materially from those expressed in any forward-looking statement made herein: (i) changes in interest rates could negatively impact net interest income; (ii) changes in the business cycle and downturns in the local, regional or national economies, including deterioration in the local real estate market, could negatively impact credit and/or asset quality and result in credit losses and increases in the Company's allowance for loan losses; (iii) changes in consumer spending could negatively impact the Company's credit quality and financial results; (iv) increasing competition from larger regional and out-of-state banking organizations as well as non-bank providers of various financial services could adversely affect the Company's competitive position within its market area and reduce demand for the Company's products and services; (v) deterioration of securities markets could adversely affect the value or credit quality of the Company's assets and the availability of funding sources necessary to meet the Company's liquidity needs; (vi) changes in technology could adversely impact the Company's operations and increase technology-related expenditures; (vii) increases in employee compensation and benefit expenses could adversely affect the Company's financial results; (viii) changes in laws and regulations that apply to the Company's business and operations, including without limitation the Dodd-Frank Act, the Jumpstart Our Business Startups Act (the "JOBS Act"), the Basel III rules adopted by the federal banking regulators and the additional regulations that will be forthcoming as a result thereof, could adversely affect the Company's business environment, operations and financial results; (ix) changes in accounting standards, policies and practices, as may be adopted or established by the regulatory agencies, the Financial Accounting Standards Board (the “FASB”) or the Public Company Accounting Oversight Board could negatively impact the Company's financial results; (x) our ability to enter new markets successfully and capitalize on growth opportunities; (xi) future regulatory compliance costs, including any increase caused by new regulations imposed by the Consumer Finance Protection Bureau; (xii) changes to the regulatory capital requirements mandated under rulemaking pursuant to Basel III; and (xiii) some or all of the risks and uncertainties described above in Item 1A could be realized, which could have a material adverse effect on the Company's business, financial condition and results of operation. Therefore, the Company cautions readers not to place undue reliance on any such forward-looking information and statements.

Critical Accounting Estimates

The Company’s significant accounting policies are described in note 1, “Summary of Significant Accounting Policies,” to the consolidated financial statements contained in Item 8.  In applying these accounting policies, management is required to exercise judgment in determining many of the methodologies, assumptions and estimates to be utilized.  Certain of the critical accounting estimates are more dependent on such judgment and in some cases may contribute to volatility in the Company’s reported financial performance should the assumptions and estimates used change over time due to changes in circumstances. The three most significant areas in which management applies critical assumptions and estimates include the areas described further below.

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Allowance for Loan Losses

The allowance for loan losses is an estimate of credit risk inherent in the loan portfolio as of the specified balance sheet dates.  The allowance for loan losses is established through a provision for loan losses, which is a direct charge to earnings.  Loan losses are charged against the allowance when management believes that the collectability of the loan principal is unlikely.  Recoveries on loans previously charged off are credited to the allowance.  The Company maintains the allowance at a level that it deems adequate to absorb all reasonably anticipated losses from specifically known and other credit risks associated with the portfolio. Arriving at an appropriate level of allowance for loan losses involves a high degree of management judgment.

The Company uses a systematic methodology to measure the amount of estimated loan loss exposure inherent in the portfolio for purposes of establishing a sufficient allowance for loan losses. The methodology makes use of specific reserves for loans individually evaluated and deemed impaired and general reserves for larger groups of homogeneous loans which rely on a combination of qualitative and quantitative factors that could have an impact on the credit quality of the portfolio.

Management believes that the allowance for loan losses is adequate to absorb probable losses from specifically known and other credit risks associated with the loan portfolio as of the balance sheet dates reflected in this annual report.  While management uses available information to recognize losses on loans, future additions to the allowance may be necessary.  In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Company’s allowance for loan losses.  Such agencies may require the Company to recognize additions to the allowance based on judgments different from those of management.

Management’s assessment of the adequacy of the allowance for loan losses is contained under the headings “Credit Risk/Asset Quality” and “Allowance for Loan Losses,” which are contained in the “Financial Condition” section of this Item 7.

Impairment Review of Investment Securities

There are inherent risks associated with the Company’s investment activities which could adversely impact the fair market value and the ultimate collectability of the Company’s investments.  The determination of other-than-temporary impairment involves a high degree of judgment and requires management to make significant estimates of current market risks and future trends. Management’s assessment, depending on the type of security, includes: reviews of market pricing: evaluating the level and duration of the loss on individual securities; ongoing credit quality evaluations; determining if any individual security or mutual or other fund exhibits fundamental deterioration; and estimating whether it is unlikely that the individual security or fund will completely recover its unrealized loss within a reasonable period of time, or in the case of fixed income securities prior to maturity.  While management uses available information to measure other-than-temporary impairment at the balance sheet date, future write-downs may be necessary based on extended duration of current unrealized losses, changing market conditions, or circumstances surrounding individual issuers and funds.

Should an investment be deemed have OTTI, the Company is required to write-down the carrying value of the investment. Such write-down(s) may have a material adverse effect on the Company’s financial condition and results of operations.  OTTI on equity securities is recognized through a charge to earnings. OTTI on fixed income securities is assessed in order to determine the impairment attributed to the underlying credit quality of the issuer and the portion of noncredit impairment. When there are credit losses on a fixed income security that management does not intend to sell and it is more likely than not that the Company will not be required to sell prior to a marketplace recovery or maturity, the portion of the total impairment that is attributable to the credit loss would be recognized in earnings, and the remaining difference between the security’s amortized cost basis and its fair value would be included in other comprehensive income. Once written-down, a security may not be written-up in excess of its new cost basis to reflect future increases in fair value.

Based on this impairment review, management determined that there were no securities carried in the Company’s investment securities portfolio at December 31, 2013 that were deemed other than temporarily impaired.

Management’s assessment of impairment of the unrealized losses in the investment portfolio is contained in Note 2, "Investments,” to the consolidated financial statements in Item 8 below.

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Impairment Review of Goodwill

In accordance with generally accepted accounting principles, the Company does not amortize goodwill and instead, at least annually, evaluates whether the carrying value of goodwill has become impaired. Impairment of the goodwill may occur when the estimated fair value of the Company is less than its recorded book value. A determination that goodwill has become impaired results in an immediate write-down of goodwill to its determined value with a resulting charge to operations.

The annual impairment test begins with a qualitative assessment of whether it is "more likely than not" that the reporting unit's fair value is less than its carrying amount. The assessment is performed at the operating unit level.  If an entity concludes it is not "more likely than not" that the fair value of a reporting unit is less than its carrying amount, it need not perform a two-step impairment test. In the case of the Company, the services offered through the Bank and subsidiaries are managed as one strategic unit and represent the Company’s only reportable operating segment.

Management's qualitative assessment takes into consideration macroeconomic conditions, industry and market considerations, cost or margin factors, financial performance and share price. Based on this assessment, the Company determined that it is not more likely than not that the Company's fair value is less than its carrying amount and therefore goodwill was not considered to be impaired at December 31, 2013.

If the Company's qualitative assessment concluded that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, it must perform the two-step impairment test to identify potential goodwill impairment and measure the amount of goodwill impairment loss to be recognized, if any. The first step of the goodwill impairment test, used to identify potential impairment, compares the estimated fair value of the reporting unit with its carrying amount, or the book value of the reporting unit, including goodwill.  If the estimated fair value of the reporting unit equals or exceeds its book value, goodwill is considered not impaired, and the second step of the impairment test is unnecessary. 

The second step, if necessary, measures the amount of goodwill impairment loss to be recognized.  The reporting unit must determine fair values for all assets and liabilities, excluding goodwill.  The net of the assigned fair value of assets and liabilities is then compared to the book value of the reporting unit, and any excess book value becomes the implied fair value of goodwill.  If the carrying amount of the goodwill exceeds the newly calculated implied fair value of that goodwill, an impairment loss is recognized in the amount required to write down the goodwill to the implied fair value.

Overview

Executive Summary

In 2013, the Company continued to focus on organic growth and market expansion while management remained committed to strategic investments in technology, our communities, and our employees. The Company continued to build for the future by strengthening our franchise in Massachusetts and Southern New Hampshire, with the 2013 opening of branch offices in Lawrence, MA and Nashua, NH, bringing our number of full service branch offices to 22.

Total assets increased $184.2 million, or 11%, since December 31, 2012, primarily due to loan growth. Loans outstanding and deposits, excluding brokered deposits, have increased $164.4 million, or 12%, and $112.4 million, or 8%, respectively, since December 31, 2012.

Net income for the year ended December 31, 2013 amounted to $13.5 million, an increase of $1.2 million, or 9%, compared to 2012. Diluted earnings per share were $1.36 for the year ended December 31, 2013, an increase of 6% compared to 2012.

In 2013, the Company's financial results included increases in net interest income, non-interest income, operating expenses and the provision for loan losses over the prior year, due primarily to the Company's growth. Non-interest income also increased as a result of higher gains on securities sales in the current year.

Composition of Earnings

The Company’s earnings are largely dependent on its net interest income, which is the difference between interest earned on loans and investments and the cost of funding (primarily deposits and borrowings).  Net interest income expressed as a

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percentage of average interest earning assets is referred to as net interest margin.  The Company reports net interest margin on a tax equivalent basis ("margin"). The re-pricing frequency of the Company’s assets and liabilities are not identical, and therefore subject the Company to the risk of adverse changes in interest rates. This is often referred to as “interest rate risk” and is reviewed in more detail in Item 7A, “Quantitative and Qualitative Disclosures About Market Risk,” of this Form 10-K.

Net interest income for the year ended December 31, 2013 amounted to $65.8 million, an increase of $3.9 million, or 6%, compared to the same period in 2012. This increase in net interest income was due primarily to revenue generated from loan growth, mainly in commercial real estate loans, partially offset by a decrease in margin. Average loan balances (including loans held for sale) increased $156.0 million for year ended December 31, 2013, compared to the same period in 2012. Margins were 4.07% and 4.27% for the year ended December 31, 2013 and 2012, respectively. Net interest margin was 4.04% for the quarter ended December 31, 2013, compared to 4.21% for the quarter ended December 31, 2012 and was relatively consistent with the quarterly margin at September 30, 2013 of 4.02%. Consistent with the industry, the margin continued to trend downward through most of 2013, as the yield on interest-earning assets declined faster than the cost of funding, as funding rates have reached a level leaving little room for significant reductions.

For the year ended December 31, 2013 and 2012, the provision for loan losses amounted to $3.3 million and $2.8 million, respectively. In determining the provision to the allowance for loan losses, management takes into consideration the level of loan growth and an estimate of credit risk, which includes such items as adversely classified and non-performing loans, the estimated specific reserves needed for impaired loans, the level of net charge-offs, and the estimated impact of current economic conditions on credit quality. The level of loan growth for the year ended December 31, 2013, was $164.4 million, compared to $114.2 million during the same period in 2012. Total non-performing assets as a percentage of total assets were 1.00% at December 31, 2013, compared to 1.33% at December 31, 2012. For the year ended December 31, 2013, the Company recorded net charge-offs of $566 thousand compared to $1.7 million for the year ended December 31, 2012. Management continues to closely monitor the non-performing assets, charge-offs and necessary allowance levels, including specific reserves. The allowance for loan losses to total loans ratio was 1.77% at December 31, 2013 and 1.78% at December 31, 2012.

For further information regarding loan quality statistics and the allowance for loan losses, see the sections below under the heading "Financial Condition" titled "Credit Risk/Asset Quality" and "Allowance for Loan Losses."

Non-interest income for the year endedDecember 31, 2013 amounted to $13.8 million, an increase of $1.6 million, or 13%, compared to 2012. Current year non-interest income benefited from gains on securities sales, with the majority of sales occurring in the first six months of 2013, as well as, increases in investment advisory fee income and deposit and interchange fees, partially offset by lower loan sale income in 2013, primarily in the current quarter.

For the year endedDecember 31, 2013, non-interest expense amounted to $55.8 million, an increase of $3.2 million, or 6%, compared to the prior year. Increased expenses related to salaries and benefits, occupancy, technology and other professional services over the prior year were primarily due to the Company's strategic growth initiatives, including branch and market expansion. The 2013 non-interest expenses were also impacted by increases in advertising, primarily due to the timing of corporate community events, investment advisory and custodial expenses due to increased business with our Enterprise Investment Advisors, and “other expenses” primarily due to our deposit program and loan servicing costs. The fourth quarter of 2013 included a net benefit of $337 thousand, which is included in salaries and employee benefits expenses, resulting from rising interest rates on certain benefit plans offered by the Company compared to a net cost of $295 thousand on these items in the fourth quarter of 2012.

Sources and Uses of Funds

The Company’s primary sources of funds are deposits, FHLB borrowings, current earnings and proceeds from the sales, maturities and pay-downs on loans and investment securities.  The Company may also, from time to time, utilize brokered deposits and overnight borrowings from correspondent banks as additional funding sources and to aid in the Company's asset liability management and interest rate risk positioning. These funds are used to originate loans, purchase investment securities, conduct operations, expand the branch network, and pay dividends to shareholders.

The investment portfolio is primarily used to provide liquidity, manage the Company’s asset-liability position and to invest excess funds. Total investments, one of the key components of earning assets, amounted to $215.4 million at December 31, 2013, or 12% of total assets, compared to 11% of total assets at December 31, 2012. Investments increased $30.9 million, or 17%, since December 31, 2012.

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Enterprise's main asset strategy is to grow loans, the largest component of earning assets, with a focus on high quality commercial loans.  Total loans increased $164.4 million, or 12%, since December 31, 2012 and amounted to $1.52 billion, or 82% of total assets. Total commercial loans amounted to $1.31 billion, or 86% of gross loans at December 31, 2013. 

Management’s preferred strategy for funding asset growth is to grow low cost deposits (comprised of demand deposit accounts, interest and business checking accounts and traditional savings accounts).  Asset growth in excess of low cost deposits is typically funded through higher cost deposits (comprised of money market accounts, commercial tiered rate or “investment savings” accounts and term certificates of deposit) and wholesale funding (brokered deposits and borrowed funds).

At December 31, 2013, total deposits, excluding brokered deposits, amounted to $1.58 billion, representing, an increase of $112.4 million, or 8%, over December 31, 2012 balances. This increase since December 31, 2012 was primarily due to increases in checking account balances of $61.1 million, or 10%, and savings and money market account balances of $79.4 million, or 12%, partially offset by a decrease of $28.1 million, or 12%, in CD balances.

Wholesale funding amounted to $88.1 million at December 31, 2013, compared to $29.6 million at December 31, 2012.  In the second quarter of 2013, as part of the Company's asset-liability management strategy to protect against rising rates, the Company purchased brokered CDs, with an average life of approximately five years.

At December 31, 2013, wholesale funding was comprised of $36.5 million in FHLB borrowings and $51.6 million of brokered deposits. At December 31, 2012, wholesale funding was comprised of $26.5 million in FHLB borrowings and $3.0 million in brokered deposits.

Opportunities and Risks

The Company’s ability to achieve its long-term strategic growth and market share objectives will depend in part upon the Company’s continued success in differentiating itself in the market place and its ability to strengthen its competitive position.

Enterprise faces robust competition to retain and attract customers within existing and neighboring geographic markets.  National and larger regional banks have a local presence in the Company’s market area.  These larger banks have certain competitive advantages, including greater financial resources and the ability to make larger loans to a single borrower. Numerous local savings banks, commercial banks, cooperative banks and credit unions also compete in the Company’s market area.  The expanded commercial lending capabilities of credit unions and the shift to commercial lending by traditional savings banks means that both of these types of traditionally consumer-orientated institutions now compete for the Company’s targeted commercial customers.  In addition, the non-taxable status of credit unions allows them certain advantages as compared to taxable institutions such as Enterprise.  Competition for loans, deposits and cash management services, investment advisory assets, and insurance business also comes from other businesses that provide financial services, including consumer finance companies, mortgage brokers and lenders, private lenders, insurance companies, securities brokerage firms, institutional mutual funds, registered investment advisors, non-bank payment channels, and internet based banks.  Consolidation within the industry, customer disenfranchisement with larger national/international banks, banks exiting certain business lines, and the cost of compliance with new government regulations are all expected to have an impact on the regional competitive market. Management actively seeks to strengthen its competitive position by capitalizing on the market opportunities and the continued pursuit of strategic growth within existing and neighboring geographic markets.   Advances in, and the increased use of technology, such as internet and mobile banking, electronic transaction processing and information security, are expected to have a significant impact on the future competitive landscape confronting financial institutions.

Management believes the Company's community service culture, business model, full range of diversified financial products and services, and state-of-the-art delivery channels position the Company to be a leading provider of banking and investment advisory and wealth management services in its growing market area. The Company has differentiated itself by building a solid reputation within the local market for delivering consistently superior customer service and taking an active role in support of the communities we serve. The Company's banking professionals have developed in-depth knowledge of our markets and are committed to upholding the Company’s core values, including significant community involvement, which has led to a strong referral network with local business and community leaders. 

The Company seeks to increase deposit share through continuous reviews of deposit product offerings, ancillary services and delivery channels, targeted to both business' and consumers' needs. These products and services are delivered by experienced local banking professionals who possess strong technical skills, and function as trusted advisors to clients. In addition, Enterprise carefully plans deposit expansion through new branch development. The Company has opened four new branch

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offices in the last twenty four months. The Company believes that each of these offices is strategically located to complement existing locations while expanding the Company's geographic market footprint. This branch expansion is aimed at achieving not only deposit market share growth, but also contributes to loan originations and generates referrals for investment advisory and management services, insurance services and residential mortgages and cash management products.

Management believes that Enterprise is also well equipped to capitalize on market potential to grow both the commercial and residential loan portfolios through strong business development efforts, while utilizing a disciplined and consistent lending approach and credit review practices, which has served to provide quality asset growth over varying economic cycles during the Company’s history.  The Company has a skilled lending sales force with a broad breadth of business knowledge and depth of lending experience to draw upon, supported by a highly qualified and experienced commercial credit review function.

Management continues to undertake significant strategic initiatives, including investments in employee training and development, marketing and public relations, technology and electronic delivery methods, branch expansion and ongoing improvements and renovations of existing branches and operations facilities.  Industry consolidation also provides management the opportunity to recruit experienced banking professionals with market knowledge who complement the Enterprise sales and service culture.  While management recognizes that such investments increase expenses in the short-term, Enterprise believes that such initiatives are a necessary investment in the long-term growth and earnings of the Company and are reflective of the opportunities in the current marketplace for community banks such as Enterprise. However, lower than expected returns on these investments, such as slower than anticipated loan and deposit growth in new branches and/or lower than expected fee or other income generated from new technology or initiatives, could decrease anticipated revenues and net income on such investments in the future.

Any prolonged deterioration of the general economic environment could weaken the local New England economy and have adverse repercussions on local industries, leading to increased unemployment and mortgage foreclosures, deterioration of local commercial real estate values, or other unforeseen consequences, which could have a severe negative impact on the Company’s financial condition, capital position, liquidity, and performance. In addition, the loan portfolio consists primarily of commercial real estate, commercial and industrial, and commercial construction loans.  These types of loans are typically larger and are generally viewed as having more risk of default than owner occupied residential real estate loans or consumer loans. Any significant deterioration in the credit quality of the commercial loan portfolio or underlying collateral values due to a worsening of the economic environment could have a material adverse effect on the Company’s financial condition and results of operations. The risk of loss due to customers’ non-payment of loans or lines of credit is called “credit risk.”  Credit risk management is reviewed below in this Item 2 under the headings “Credit Risk," "Asset Quality” and “Allowance for Loan Losses.”

The value of the investment portfolio as a whole, or individual securities held, including restricted FHLB capital stock, could be negatively impacted by any sustained volatility in the financial markets or in credit markets, or fundamental deterioration of credit quality of the individual security, fund or issuer, which could possibly result in the recognition of additional OTTI charges in the future.

In addition, a sustained low interest rate environment caused by an adverse economic cycle, or other factors, could negatively impact the Company's net interest income and results of operation. The re-pricing frequency of interest earning assets and liabilities are not identical, and, therefore, subject the Company to the risk of adverse changes in interest rates.  This is often referred to as “interest rate risk” and is reviewed in more detail under the heading Item 7A, “Quantitative and Qualitative Disclosures About Market Risk,” below.

Liquidity management is the coordination of activities so that cash needs are anticipated and met, readily and efficiently.  Liquidity management is reviewed further below in this Item 7 under the heading “Liquidity.”

Federal banking agencies require the Company and the Bank to meet minimum capital requirements. For information regarding the current capital requirements applicable to the Company and the Bank and their respective capital levels at December 31, 2013, and the recently adopted changes to the regulatory capital framework, see the sections within Item 1, "Business," entitled “Capital Resources” and "Capital Requirements" and "New Capital Requirements under Basel III" within "Supervision and Regulation" and note 9, "Stockholders' Equity" to the consolidated financial statements contained in Item 8 "Financial Statements and Supplementary Data.". At December 31, 2013, both the Company and the Bank were categorized as “well capitalized;” however, future unanticipated charges against capital, or changes in regulatory requirements such as Basel III discussed below, could impact those regulatory capital designations. 

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In addition, any further changes in government regulation or oversight, including the implementation by the federal regulatory agencies of the various requirements contained in the Dodd-Frank Act and rules under Basel III, could affect the Company in substantial and unpredictable ways, including, but not limited to, subjecting the Company to additional operating, governance and compliance costs, or potential loss of revenue due to the impact of an enhanced regulatory structure on the banking industry, and require all U.S. banking organizations, including community banks, such as Enterprise Bank, to hold higher amounts of capital, especially common equity, against their risk-weighted assets. Although several significant aspects of the Dodd-Frank Act and the Basel III rule expressly apply only to larger, “systemically significant” institutions, they may have the potential to influence the Company's business decisions, while other parts of the legislation apply either directly, or potentially indirectly, to activities of community banks, such as Enterprise Bank.

Many aspects of the Dodd-Frank Act are subject to rulemaking by various regulatory agencies and will take effect over several years, making it difficult at this time to anticipate the overall financial impact of this expansive legislation on the Company, its customers or the financial industry generally. Likewise, any new consumer financial protection laws enacted by the Consumer Financial Protection Bureau would apply to all banks and thrifts, and may increase the Company's compliance and operational costs in the future.

Compliance risk includes the threat of fines, civil money penalties, lawsuits and restricted growth opportunities resulting from violations and/or non-conformance with laws, rules, regulations, prescribed practices, internal policies and procedures, or ethical standards.  The Company maintains a Compliance Management Program (CMP) designed to meet regulatory and legislative requirements.  The CMP provides for tracking and implementing regulatory changes, monitoring the effectiveness of policies and procedures, conducting compliance risk assessments, and educating employees in matters relating to regulatory compliance.  The Audit Committee of the Board of Directors oversees the effectiveness of the CMP.

Operational risk includes the threat of loss from inadequate or failed internal processes, people, systems or external events, due to, among other things: fraud or error; the inability to deliver products or services; failure to maintain a competitive position; lack of information or physical security; inadequate procedures or controls followed by third-party service providers; or violations of ethical standards. Controls to manage operational risk include, but are not limited to, technology administration, information security, vendor management and business continuity planning.

The Company's technology administration includes policies and guidelines for the design, procurement, installation, management and acceptable use of hardware, software and network devices. The Company has implemented layered security approaches for all delivery channels and technology project standards that are designed to provide risk based oversight, coordinate and communicate ideas, and to prioritize and manage project implementation in a manner consistent with corporate objectives.

Management utilizes a combination of third party information security assessments, key technologies and ongoing internal evaluations to provide a level of protection of non-public personal information and to continually monitor and attempt to safeguard information on its operating systems and those of third party service providers.  The Company also utilizes firewall technology and a combination of software and third-party monitoring to detect intrusion, guard against unauthorized access, and continuously identify and prevent computer viruses on the Company’s information systems.

The Company has a risk-based, vendor management program designed to provide a mechanism to enable management to determine what risk, if any, a particular vendor exposes the Company to, to rate those risks, and to mitigate that risk by properly performing initial and ongoing due diligence when selecting or maintaining relationships with significant third-party providers.

The Company’s Disaster Recovery and Business Continuity Program consists of the information and procedures required to enable a rapid recovery from an occurrence that would disable the Company’s operations for an extended period, due to such circumstances as: loss of personnel; loss of information and/or loss of access to information under various scenarios; and loss of access to, or the physical destruction or damage of, facilities, infrastructure or systems. The plan, which is reviewed annually, establishes responsibility for assessing a disruption of business, contains alternative strategies for the continuance of critical business functions during an emergency situation, assigns responsibility for restoring services, and sets priorities by which critical services will be restored.  A bank-owned and maintained secondary data center location provides the Company auxiliary network processing capabilities and flexibility. 

Any system of controls or contingency plan, however well designed and operated, is based in part on certain assumptions and can provide only reasonable, not absolute, assurances that the objectives of the controls and procedures will be met.

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In addition to the risks discussed above, numerous other factors that could adversely affect the Company’s reputation, its future results of operations and financial condition are addressed in Item 1A, “Risk Factors.”  This Opportunities and Risk discussion should be read in conjunction with Item 1A.

Financial Condition

Total assets increased $184.2 million, or 11%, over the prior year, amounting to $1.85 billion at December 31, 2013.  The balance sheet composition and changes since the prior year are discussed below.

Cash and cash equivalents

Cash and cash equivalents is comprised of cash on hand and cash items due from banks, interest-earning deposits (deposit, money market, and money market mutual fund accounts) and overnight and term fed funds sold. At both December 31, 2013 and December 31, 2012, cash and cash equivalents amounted to 3% of total assets. Balances in cash and cash equivalents will fluctuate primarily due to the timing of net deposit flows, borrowing and loan inflows and outflows, investment purchases and maturities, calls and sales proceeds, and the immediate liquidity needs of the Company. 

Investments

As of December 31, 2013, the fair value of the investment portfolio increased $30.9 million, or 17%, compared to December 31, 2012, and was primarily within the federal agency mortgage backed securities portfolio. The shift in the composition of investments in 2013 was part of the Bank’s asset-liability management strategy. At December 31, 2013 and 2012, all investments were classified as available for sale and were carried at fair market value.

The investment portfolio represented 12% of total assets at December 31, 2013 and 11% of total assets at December 31, 2012.  Fixed income investments comprised the majority of the fair value of the portfolio and represented 94% of total investments at both December 31, 2013 and December 31, 2012, respectively.

The following table summarizes investments at the dates indicated:

	December 31,
	2013				2012				2011
(Dollars in thousands)	Amount		Percent		Amount		Percent		Amount		Percent
Federal agency obligations(1)	$	55,543	25.8	%	$	65,685	35.6	%	$	40,397	28.8	%
Federal agency mortgage backed securities (MBS)(1)	79,650		37.0	%	49,674		26.9	%	39,688		28.2	%
Municipal securities	61,954		28.8	%	56,523		30.7	%	51,209		36.5	%
Corporate bonds	5,054		2.3	%	1,914		1.0	%	—		—	%
Certificates of deposit (2)	—		—	%	—		—	%	2,147		1.5	%
Total fixed income securities	202,201		93.9	%	173,796		94.2	%	133,441		95.0	%
Equity investments	13,168		6.1	%	10,668		5.8	%	6,964		5.0	%
Total available for sale investments at fair value	$	215,369	100.0	%	$	184,464	100.0	%	$	140,405	100.0	%

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(1) These categories may include investments issued or guaranteed by government sponsored enterprises such as Fannie Mae (FNMA), Freddie Mac (FHLMC), Ginnie Mae (GNMA), Federal Farm Credit Bank (FFCB), or one of several Federal Home Loan Banks (FHLBs). All agency MBS/CMO investments owned by the Company are backed by residential mortgages.

(2) Certificates of Deposit ("CDs") represent term deposits issued by banks that are subject to FDIC insurance and purchased on the open market.

Included in the federal agency MBS category were Collateralized Mortgage Obligations (“CMO’s”) totaling $17.4 million, $23.6 million and $21.8 million, at December 31, 2013, 2012 and 2011, respectively.

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During 2013, the Company recognized net gains amounting to $1.2 million, on the sales of $8.3 million of investments. Principal paydowns, calls and maturities on fixed income securities totaled $27.9 million during 2013.  These portfolio cash inflows along with other funds were utilized to purchase $71.4 million of investments during 2013.

As of December 31, 2013, the net unrealized gains in the investment portfolio were $3.2 million compared to $6.4 million at December 31, 2012.  The Company attributes the decrease in net unrealized gains in the current period primarily to the impact of increases in current market yields on the Company's fixed income securities. Unrealized gains or losses will only be recognized in the statements of income if the investments are sold. However, should an investment be deemed have OTTI, the Company is required to write-down the fair value of the investment. See “Impairment Review of Securities” under the heading “Critical Accounting Estimates” above in this Item 7 for additional information regarding the accounting for OTTI.

See also Note 2, "Investments” and Note 14 "Fair Value Measurements" to the consolidated financial statements in Item 8 below, for further information regarding the Company’s investment portfolio, including unrealized gains and losses, other than temporary impairment review and investments pledged as collateral, as well as the Company's fair value measures for available-for sale investments.

The contractual maturity distribution as of December 31, 2013, of the fixed income securities above, with the weighted average tax equivalent yield for each category is set forth below:

	Under 1 Year				>1 – 5 Years				>5 – 10 Years				Over 10 Years
(Dollars in thousands)	Amount		Yield		Amount		Yield		Amount		Yield		Amount		Yield
At amortized cost:
Federal agency obligations	$	10,030	0.82	%	$	42,443	0.78	%	$	2,967	1.97	%	$	—	—	%
MBS	—		—	%	3,341		2.45	%	7,562		3.02	%	70,094		2.14	%
Municipal securities	3,349		2.04	%	20,023		2.83	%	31,135		4.40	%	6,168		6.42	%
Corporate bonds	—		—	%	3,387		1.54	%	1,693		2.68	%	—		—	%
Total fixed income securities	$	13,379	1.12	%	$	69,194	1.49	%	$	43,357	3.93	%	$	76,262	2.49	%
At fair value:
Total fixed income securities	$	13,439			$	69,864			$	43,996			$	74,902

Scheduled contractual maturities may not reflect the actual maturities of the investments. MBS/CMO securities are shown at their final maturity, however due to prepayments and amortization the actual MBS/CMO cash flows likely will be faster than presented above. Included in the municipal, federal agency obligations and corporate bonds categories are $46.7 million in securities at amortized cost which can be “called” prior to final maturity.  Management considers these factors when evaluating the net interest margin in the Company’s asset-liability management program.

Federal Home Loan Bank Stock

The Company is required to purchase stock of the FHLB in association with advances from the FHLB; this stock is classified as a restricted investment and carried at cost, which management believes approximates fair value.  At December 31, 2013, the Company’s investment in FHLB capital stock amounted to $4.3 million. 

See Note 1, “Summary of Significant Accounting Policies,” Item d to the Company’s Consolidated Financial Statements, contained in Item 8 for further information regarding the Company’s investment in FHLB stock.

Loans

Total loans increased $164.4 million, or 12%, and amounted to 82% of total assets at both December 31, 2013 and December 31, 2012.  The Company primarily attributes the increase to its seasoned lending team, its sales and service culture and geographic market expansion.  The mix of loans within the portfolio remained relatively unchanged with commercial loans amounting to approximately 86% of gross loans at December 31, 2013, reflecting a continued focus on commercial loan growth.

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The following table sets forth the loan balances by certain loan categories at the dates indicated and the percentage of each category to gross loans. 

	December 31,
	2013					2012					2011					2010					2009
(Dollars in thousands)	Amount			% of Total		Amount			% of Total		Amount			% of Total		Amount			% of Total		Amount			% of total
Commercial real estate	$	820,299		53.8	%	$	710,265		52.2	%	$	650,697		52.2	%	$	595,075		52.3	%	$	553,768		51.1	%
Commercial, & industrial	357,056			23.4	%	328,579			24.1	%	310,706			24.9	%	274,829			24.1	%	263,151			24.3	%
Commercial construction	132,507			8.6	%	121,367			8.9	%	117,398			9.4	%	111,681			9.8	%	107,467			9.9	%
Total Commercial	1,309,862			85.8	%	1,160,211			85.2	%	1,078,801			86.5	%	981,585			86.2	%	924,386			85.3	%
Residential mortgages	132,721			8.7	%	120,278			8.8	%	86,311			6.9	%	82,395			7.2	%	87,068			8.0	%
Home equity loans and lines of credit	74,354			4.9	%	75,648			5.6	%	77,135			6.2	%	70,147			6.2	%	68,392			6.3	%
Consumer	8,643			0.6	%	4,911			0.4	%	4,570			0.4	%	4,228			0.4	%	3,824			0.4	%
Total retail loans	215,718			14.2	%	200,837			14.8	%	168,016			13.5	%	156,770			13.8	%	159,284			14.7	%
Gross loans	1,525,580			100.0	%	1,361,048			100.0	%	1,246,817			100.0	%	1,138,355			100.0	%	1,083,670			100.0	%
Deferred fees, net	(1,524		)			(1,393		)			(1,389		)			(1,417		)			(1,218		)
Total loans	1,524,056					1,359,655					1,245,428					1,136,938					1,082,452
Allowance for loan losses	(26,967		)			(24,254		)			(23,160		)			(19,415		)			(18,218		)
Net loans	$	1,497,089				$	1,335,401				$	1,222,268				$	1,117,523				$	1,064,234

During 2013, commercial real estate loans increased $110.0 million, or 15%.  Commercial real estate loans are typically secured by one-to-four and multi-family apartment buildings, office or mixed-use facilities, strip shopping centers or other commercial or industrial properties.

Commercial and industrial loans increased by $28.5 million, or 9%, since December 31, 2012.  These loans include seasonal revolving lines of credit, working capital loans, equipment financing (including equipment leases), and term loans.  Also included in commercial and industrial loans are loans under various U.S. Small Business Administration programs.

Commercial construction loans increased by $11.1 million, or 9%, compared to December 31, 2012.  Commercial construction loans include the development of residential housing and condominium projects, the development of commercial and industrial use property and loans for the purchase and improvement of raw land.

Residential mortgages (including residential construction loans), home equity mortgages and consumer loans combined, increased by $14.9 million, or 7%, since December 31, 2012, due primarily to increases in residential mortgage loans. In the fourth quarter of 2012, the Company purchased $26.4 million of residential mortgage loans with a current balance amounting to $14.1 million. These purchased loans conform to the Company's own underwriting standards and are generally consistent with the originated residential mortgage loan production in terms of individual loan size, credit quality and geographic region. The increase in consumer loans was primarily due to loans under energy efficiency financing programs in conjunction with Massachusetts public utilities.

At December 31, 2013, commercial loan balances participated out to various banks amounted to $52.1 million, compared to $53.6 million at December 31, 2012.  These balances participated out to other institutions are not carried as assets on the Company’s financial statements. Loans originated by other banks in which the Company is the participating institution are carried at the pro-rata share of ownership and amounted to $34.5 million and $28.6 million at December 31, 2013 and 2012, respectively.  In each case, the participating bank funds a percentage of the loan commitment and takes on the related risk. The rights and obligations of each participating bank are divided proportionately among the participating banks in an amount equal to their share of ownership and with equal priority among all banks.

Refer to Note 3 "Loans," to the Consolidated Financial Statements, contained in Item 8, for information on related party loans, loans serviced for others, and loans pledged as collateral.

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The following table sets forth the scheduled maturities of commercial real estate, commercial & industrial and commercial construction loans in the Company’s portfolio at December 31, 2013. The table also sets forth the dollar amount of loans which are scheduled to mature after one year which have fixed or adjustable rates.

(Dollars in thousands)	Commercial real estate		Commercial & industrial		Commercial construction
Amounts due(1):
One year or less	$	33,457	$	178,016	$	78,148
After one year through five years	117,462		91,168		35,342
Beyond five years	669,380		87,872		19,017
	$	820,299	$	357,056	$	132,507
Interest rate terms on amounts due after one year:
Fixed	$	37,214	$	64,271	$	1,659
Adjustable	$	749,628	$	114,769	$	52,700

__________________________

(1) Scheduled contractual maturities may not reflect the actual maturities of loans.  The average maturity of loans may be shorter than their contractual terms principally due to prepayments and demand features.

Credit Risk

The Company manages its loan portfolio to avoid concentration by industry and loan size to lessen its credit risk exposure.   However, inherent in the lending process is the risk of loss due to customer non-payment, or “credit risk.”  The Company’s commercial lending focus may entail significant additional risks compared to long term financing on existing, owner-occupied residential real estate.  While the Company endeavors to minimize this risk through sound underwriting practices and the risk management function, management recognizes that loan losses will occur and that the amount of these losses will fluctuate depending on the risk characteristics of the loan portfolio and economic conditions.

The credit risk management function focuses on a wide variety of factors, including, among others, current and expected economic conditions, the real estate market, the financial condition of borrowers, the ability of borrowers to adapt to changing conditions or circumstances affecting their business and the continuity of borrowers’ management teams.  Early detection of credit issues is critical to minimize credit losses. Accordingly, management regularly monitors these factors, among others, through ongoing credit reviews by the Credit Department, an external loan review service, reviews by members of senior management and the Loan Committee of the Board of Directors. This review includes the assessment of internal credit quality indicators such as the risk classification of loans, individual review of adversely classified loans, past due and non-accrual loans, impaired and restructured loans, and the level of foreclosure activity, as well as trends in the general levels of these indicators.

The Company’s loan risk rating system classifies loans depending on risk of loss characteristics.  The classifications range from “substantially risk free” for the highest quality loans and loans that are secured by cash collateral, to the more severe adverse classifications of “substandard,” “doubtful” and “loss” based on criteria established under banking regulations.  Loans classified as substandard include those characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Loans classified as doubtful have all the weaknesses inherent in a substandard rated loan with the added characteristic that the weaknesses make collection or full payment from liquidation, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.  Loans classified as "loss" are generally considered uncollectible at present, although long term recovery of part or all of loan proceeds may be possible.  These “loss” loans would require a specific loss reserve or charge-off. Adversely classified loans may be accruing or in non-accrual status and may be additionally designated as restructured and/or impaired, or some combination thereof. Loans which are evaluated to be of weaker credit quality are reviewed on a more frequent basis by management.

Loans on which the accrual of interest has been discontinued are designated as non-accrual loans. Accrual of interest on loans is generally discontinued when a loan becomes contractually past due, with respect to interest or principal, by 90 days, or when reasonable doubt exists as to the full and timely collection of interest or principal. When a loan is placed on non-accrual status, all interest previously accrued but not collected is reversed against current period interest income. Interest accruals are resumed on such loans only when payments are brought current and have remained current for a period of 180 days or when, in the judgment of management, the collectability of both principal and interest is reasonably assured.  Interest payments received on loans in a non-accrual status are generally applied to principal on the books of the Company.

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Impaired loans are individually significant loans for which management considers it probable that not all amounts due (principal and interest) in accordance with original contractual terms will be collected.  The majority of impaired loans are included within the non-accrual balances; however, not every loan in non-accrual status has been designated as impaired. Impaired loans include loans that have been modified in a troubled debt restructuring (or "TDR", see below). Impaired loans exclude large groups of smaller-balance homogeneous loans, such as residential mortgage loans and consumer loans, which are collectively evaluated for impairment, and loans that are measured at fair value, unless the loan is amended in a TDR.

Management does not set any minimum delay of payments as a factor in reviewing for impaired classification.  Management considers the individual payment status, net worth and earnings potential of the borrower, and the value and cash flow of the collateral as factors to determine if a loan will be paid in accordance with its contractual terms.

Impaired loans are individually evaluated for credit loss and a specific reserve is assigned for the amount of the estimated credit loss. When a loan is deemed to be impaired, management estimates the credit loss by comparing the loan’s carrying value against either 1) the present value of the expected future cash flows discounted at the loan’s effective interest rate; 2) the loan’s observable market price; or 3) the expected realizable fair value of the collateral, in the case of collateral dependent loans.  A specific allowance is assigned to the impaired loan for the amount of estimated credit loss. Impaired loans are charged off, in whole or in part, when management believes that the recorded investment in the loan is uncollectible.

Loans are designated as a TDR when, as part of an agreement to modify the original contractual terms of the loan, the Bank grants a concession on the terms, that would otherwise not be considered, as a result of financial difficulties of the borrower.  Typically, such concessions consist of a reduction in interest rate to a below market rate, taking into account the credit quality of the note, or a deferment or reduction of payments (principal or interest), which materially alters the Bank’s position or significantly extends the note’s maturity date, such that the present value of cash flows to be received is materially less than those contractually established at the loan’s origination. All loans that are modified are reviewed by the Company to identify if a TDR has occurred.  TDR loans are included in the impaired loan category and as such, these loans are individually reviewed and evaluated, and a specific reserve is assigned for the amount of the estimated credit loss.

A TDR or impaired loan classification will be considered for upgrade based on the borrower's sustained performance over time and their improving financial condition, the expectation of the borrower's ability to continue to service the loan in accordance the original or modified terms and the collectability of the remaining balance, and in the case of TDR loans, an interest rate at or greater than a market rate for a similar credit at the time of modification.

Real estate acquired by the Company through foreclosure proceedings or the acceptance of a deed in lieu of foreclosure is classified as Other Real Estate Owned (“OREO”). When property is acquired, it is generally recorded at the lesser of the loan’s remaining principal balance, net of any unamortized deferred fees, or the estimated fair value of the property acquired, less estimated costs to sell. Any loan balance in excess of the estimated realizable fair value on the date of transfer is charged to the allowance for loan losses on that date. All costs incurred thereafter in maintaining the property, as well as subsequent declines in fair value are charged to non-interest expense.

Non-performing assets are comprised of non-accrual loans, deposit account overdrafts that are more than 90 days past due and OREO.  The designation of a loan or other asset as non-performing does not necessarily indicate that loan principal and interest will ultimately be uncollectible.  However, management recognizes the greater risk characteristics of these assets and therefore considers the potential risk of loss on assets included in this category in evaluating the adequacy of the allowance for loan losses.  Despite prudent loan underwriting, adverse changes within the Company’s market area, or deterioration in local, regional or national economic conditions, could negatively impact the Company’s level of non-performing assets in the future.

Asset Quality

At December 31, 2013, the Company had adversely classified loans (loans carrying “substandard”, “doubtful” or “loss” classifications) amounting to $27.9 million, compared to $34.4 million at December 31, 2012. The decrease in adversely classified loans as of December 31, 2013, as compared to December 2012, was primarily due to paydowns on several commercial relationships, upgraded commercial loans and charge-offs, partially offset by additional credit downgrades during the period.

Adversely classified loans which were performing but possessed potential weaknesses and, as a result, could ultimately become non-performing loans amounted to $10.2 million at December 31, 2013 and $14.0 millionDecember 31, 2012, respectively.  The remaining balances of adversely classified loans were non-accrual loans, amounting to $17.8 million and $20.4 million at December 31, 2013 and December 31, 2012, respectively.  Non-accrual loans which were not adversely classified amounted to

47

$577 thousand and $1.2 million at December 31, 2013 and December 31, 2012, respectively, and primarily represented the guaranteed portions of non-performing Small Business Administration loans.

The following table sets forth information regarding non-performing assets, TDR loans and delinquent loans 60-89 days past due as to interest or principal, held by the Company at the dates indicated:

	December 31,
(Dollars in thousands)	2013			2012			2011			2010			2009
Commercial real estate	$	10,561		$	12,608		$	14,060		$	8,065		$	11,789
Commercial and industrial	5,743			6,993			9,696			7,573			2,748
Commercial construction	1,118			743			727			2,890			4,662
Residential	633			862			850			1,395			1,220
Home Equity	281			390			536			407			177
Consumer	7			—			6			10			8
Total Non-accrual loans	18,343			21,596			25,875			20,340			20,604
Overdrafts > 90 days past due	3			5			1			1			5
Total non-performing loans	18,346			21,601			25,876			20,341			20,609
Other real estate owned	114			500			1,445			825			1,086
Total non-performing assets	$	18,460		$	22,101		$	27,321		$	21,166		$	21,695
Total Loans	$	1,524,056		$	1,359,655		$	1,245,428		$	1,136,938		$	1,082,452
Accruing TDR loans not included above	$	11,438		$	16,039		$	12,442		$	30,225		$	20,125
Delinquent loans 60-89 days past due	$	2,638		$	1,184		$	3,026		$	2,324		$	2,104
Non-performing loans to total loans	1.20		%	1.59		%	2.08		%	1.79		%	1.90		%
Non-performing assets to total assets	1.00		%	1.33		%	1.83		%	1.51		%	1.66		%
Loans 60-89 days past due to total loans	0.17		%	0.09		%	0.24		%	0.20		%	0.19		%
Adversely Classified loans to total loans	1.83		%	2.53		%	3.03		%	2.22		%	2.38		%

The $3.3 million net decrease in total non-performing loans, and the resulting decrease in the ratio of non-performing loans as a percentage of total loans outstanding, was primarily due to net decreases within the commercial and industrial ($1.3 million) and the commercial real estate ($2.0 million) portfolios. The majority of non-accrual loans were also carried as impaired loans during the periods and the changes since December 31, 2012 are discussed further below.

Total impaired loans amounted to $29.8 million and $37.4 million at December 31, 2013 and December 31, 2012, respectively.  The decrease in the recorded investment in impaired loans since the prior year was primarily within the commercial real estate portfolio of $7.7 million. The decrease in impaired loans as of December 31, 2013, as compared to December 31, 2012, was primarily due to paydowns on several commercial relationships, upgraded commercial loans and charge-offs, partially offset by additional credit downgrades during the period. Total accruing impaired loans amounted to $11.9 million and $16.6 million at December 31, 2013 and December 31, 2012, respectively, while non-accrual impaired loans amounted to $17.9 million and $20.8 million as of December 31, 2013 and December 31, 2012, respectively.

In management’s opinion, the majority of impaired loan balances at December 31, 2013 were supported by expected future cash flows or, for those collateral dependent loans, the net realizable value of the underlying collateral.  Based on management’s assessment at December 31, 2013, impaired loans totaling $18.8 million required no specific reserves and impaired loans totaling $11.0 million required specific reserve allocations of $4.4 million.  At December 31, 2012, impaired loans totaling $26.1 million required no specific reserves and impaired loans totaling $11.3 million required specific reserve allocations of $4.1 million.  Management closely monitors these relationships for collateral or credit deterioration.

Total TDR loans, included in the impaired loan figures above as of December 31, 2013 and December 31, 2012 were $20.9 million and $26.6 million, respectively. TDR loans included in non-performing loans amounted to $9.5 million and $10.5 million at December 31, 2013 and December 31, 2012, respectively. TDR loans on accrual status amounted to $11.4 million and $16.0 million at December 31, 2013 and December 31, 2012, respectively. The Company continues to work with

48

commercial relationships and enters into loan modifications to the extent deemed to be necessary or appropriate to seek the best mutual outcome given the current economic environment.

The carrying value of OREO at December 31, 2013 was $114 thousand and consisted of 1 property, compared to $500 thousand comprised of 1 property at December 31, 2012. During 2013, the property that was held in OREO as of December 31, 2012 was sold, and 2 properties were added to OREO, 1 of which was subsequently sold during the year.  There were $121 thousand of gains realized on the sale of OREO in 2013 and a write down of $23 thousand was recorded on the remaining property to reflect current expected realizable value. There were $87 thousand in gains on OREO sales in 2012.

Management believes that the loan portfolio continued to experience a level of modest credit stabilization during the 2013 period, as indicated by the improving statistics related to migration of adversely classified, non-accrual loans, impaired loans and the level of OREO properties held as of December 31, 2013. However, management believes that the general credit profile of the portfolio and individual commercial relationships will continue to be affected by lagging effects that the economic environment has had on the regional and local commercial markets.

Allowance for Loan Losses

On a quarterly basis, management prepares an estimate of the allowance necessary to cover estimated credit losses.  The allowance for loan losses is an estimate of probable credit risk inherent in the loan portfolio as of the specified balance sheet dates.  The Company maintains the allowance at a level that it deems adequate to absorb all reasonably anticipated losses from specifically known and other credit risks associated with the portfolio.

In making its assessment on the adequacy of the allowance, management considers several quantitative and qualitative factors that could have an effect on the credit quality of the portfolio including individual assessment of larger and high risk credits, delinquency trends and the level of non-performing loans, net charge-offs, the growth and composition of the loan portfolio, expansion in geographic market area and the strength of the local and national economy, among other factors.  Except for loans specifically identified as impaired, as discussed above, the estimate is a two-tiered approach that allocates loan loss reserves to “adversely classified” loans by credit rating and to non-classified loans by credit type.  The general loss allocations take into account the quantitative historic loss experience as well as the qualitative factors identified above.  The allowance for loan losses is established through a provision for loan losses, which is a direct charge to earnings.  Loan losses are charged against the allowance when management believes that the collectability of the loan principal is unlikely.  Recoveries on loans previously charged off are credited to the allowance.

Purchased residential loans were initially booked at fair market value and, in accordance with accounting guidance, do not carry an initial allowance for loan losses. Management will continue to closely monitor this portfolio of non-classified loans for estimated credit loss under general loss allocations taking into account the loss experience as well as the quantitative and qualitative factors identified above.

Management closely monitors the credit quality of individual delinquent and non-performing relationships, industry concentrations, the local and regional real estate market and current economic conditions.  The level of delinquent and non-performing assets is largely a function of economic conditions and the overall banking environment.  Despite prudent loan underwriting, adverse changes within the Company’s market area, or deterioration in the local, regional or national economic conditions could negatively impact the Company’s level of non-performing assets in the future.

The allowance for loan losses to total loans ratio was 1.77% at December 31, 2013 compared to 1.78% at December 31, 2012.  Contributing to the decline in this ratio was the improving credit quality statistics discussed above. Based on the foregoing, as well as management’s judgment as to the existing credit risks inherent in the loan portfolio, the Company’s allowance for loan losses is deemed adequate to absorb probable losses from specifically known and other credit risks associated with the portfolio as of December 31, 2013.

49

The following table summarizes the activity in the allowance for loan losses for the periods indicated:

	Years Ended December 31,
(Dollars in thousands)	2013			2012			2011			2010			2009
Balance at beginning of year	$	24,254		$	23,160		$	19,415		$	18,218		$	15,269
Provision charged to operations	3,279			2,750			5,197			5,137			4,846
Recoveries on charged-off loans:
Commercial real estate	96			29			124			2			210
Commercial and industrial	80			461			148			49			130
Commercial construction	78			2			4			5			3
Residential mortgage	128			10			6			—			1
Home equity	21			2			—			—			7
Consumer	12			15			12			21			287
Total recoveries	$	415		$	519		$	294		$	77		$	638
Charged-off loans:
Commercial real estate	206			276			603			1,015			911
Commercial and industrial	670			1,388			1,075			1,662			1,321
Commercial construction	—			156			—			1,245			—
Residential mortgage	36			185			3			25			76
Home equity	44			140			—			—			140
Consumer	25			30			65			70			87
Total charged-off	$	981		$	2,175		$	1,746		$	4,017		$	2,535
Net loans charged-off	$	566		$	1,656		$	1,452		$	3,940		$	1,897
Balance at December 31	$	26,967		$	24,254		$	23,160		$	19,415		$	18,218
Average loans outstanding	$	1,438,556		$	1,281,994		$	1,186,674		$	1,106,597		$	1,015,008
Net loans charged-off to average loans	0.04		%	0.13		%	0.12		%	0.36		%	0.19		%
Total loans	$	1,524,056		$	1,359,655		$	1,245,428		$	1,136,938		$	1,082,452
Allowance to total loans	1.77		%	1.78		%	1.86		%	1.71		%	1.68		%
Recoveries to charge-offs	42.30		%	23.86		%	16.84		%	1.92		%	25.17		%
Net loans charged-off to allowance	2.10		%	6.83		%	6.27		%	20.29		%	10.41		%

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The following table sets forth the allocation of the Company’s allowance for loan losses among the categories of loans and the percentage of loans in each category to gross loans for the periods ending on the respective dates indicated:

	December 31,
	2013				2012				2011				2010				2009
(Dollars in thousands)	Allowance allocation		Loan category as % of gross loans		Allowance allocation		Loan category as % of gross loans		Allowance allocation		Loan category as % of gross loans		Allowance allocation		Loan category as % of gross loans		Allowance allocation		Loan category as % of gross loans
Comm’l real estate	$	13,174	53.8	%	$	11,793	52.2	%	$	10,855	52.2	%	$	9,769	52.3	%	$	9,630	51.1	%
Comm’l industrial	8,365		23.4	%	7,297		24.1	%	7,568		24.9	%	5,489		24.1	%	4,614		24.3	%
Comm’l constr.	3,493		8.6	%	3,456		8.9	%	3,013		9.4	%	2,609		9.8	%	2,475		9.9	%
Resid: mortg, cnstr and HELOC’s	1,710		13.6	%	1,582		14.4	%	1,610		13.1	%	1,435		13.4	%	1,402		14.3	%
Consumer	225		0.6	%	126		0.4	%	114		0.4	%	113		0.4	%	97		0.4	%
Total	$	26,967	100.0	%	$	24,254	100.0	%	$	23,160	100.0	%	$	19,415	100.0	%	$	18,218	100.0	%

The allocation of the allowance for loan losses above reflects management’s judgment of the relative risks of the various categories of the Company’s loan portfolio. This allocation should not be considered an indication of the future amounts or types of possible loan charge-offs.

See Note 4 “Allowance for Loan Losses” to the Company's Consolidated Financial Statements, contained in Item 8, for further information regarding credit quality and the allowance for loan losses.

Bank Owned Life Insurance (“BOLI”)

The Company has purchased BOLI as an investment vehicle, utilizing the earnings on BOLI to offset the cost of the Company’s benefit plans. The cash surrender value of BOLI was $15.9 million and $15.4 million at December 31, 2013 and 2012, respectively.

Further information regarding the Company’s BOLI can be found in Item (j) in Note 1, "Summary of Significant Accounting Policies," and information on the Company's retirement benefit plans is contained in Note 10, “Employee Benefit Plans,” under the heading “Supplemental Life Insurance” both of which are located in the notes to the consolidated financial statements contained in Item 8 below.

Deposits

Total deposits increased $161.0 million, or 11%, as of December 31, 2013 compared to December 31, 2012. As of December 31, 2013, deposits, excluding brokered deposits, increased $112.4 million, or 8%, since December 31, 2012. This increase was noted primarily in the first nine months of the year. Total deposits as a percentage of total assets were 88% at December 31, 2013 compared to 89% at December 31, 2012.

51

The following table sets forth deposit balances by certain categories at the dates indicated and the percentage of each deposit category to total deposits.

	December 31, 2013				December 31, 2012				December 31, 2011
(Dollars in thousands)	Amount		% of Total		Amount		% of Total		Amount		% of Total
Non-interest demand deposits	$	435,465	26.6	%	$	386,643	26.2	%	$	309,930	23.3	%
Interest bearing checking	222,837		13.6	%	210,564		14.3	%	165,718		12.4	%
Total checking	658,302		40.2	%	597,207		40.5	%	475,648		35.7	%
Savings	150,215		9.2	%	154,680		10.5	%	141,289		10.6	%
Money Markets	575,825		35.2	%	491,942		33.3	%	446,526		33.5	%
Total savings/money markets	726,040		44.4	%	646,622		43.8	%	587,815		44.1	%
Certificates of deposit	200,083		12.2	%	228,166		15.5	%	269,695		20.2	%
Total non-brokered deposits (1)	1,584,425		96.8	%	1,471,995		99.8	%	1,333,158		100.0	%
Brokered deposits	51,567		3.2	%	3,032		0.2	%	—		—	%
Total deposits	$	1,635,992	100.0	%	$	1,475,027	100.0	%	$	1,333,158	100.0	%

(1) Includes reciprocal money market deposits and CDs received from participating banks in nationwide networks as a result of our customers electing to participate in programs to obtain full FDIC insurance. Essentially, the equivalent of the original deposit comes back to the Company as non-brokered deposits within the appropriate category under total deposits on the balance sheet.

Non-brokered deposit growth was noted in checking and money market products. Checking deposits, a strong source of low-cost funding for the Company, increased $61.1 million, or 10%, through December 31, 2013 compared to December 31, 2012, with the most growth in non-interest bearing accounts, which increased $48.8 million, or 13%, since December 31, 2012. During the same period, savings and money market accounts increased by $79.4 million, or 12% at December 31, 2013 compared to December 31, 2012, primarily in money market accounts. The increases in non-brokered deposits were attributed to sales and marketing efforts, market expansion and general inflows of funds into the deposit marketplace.

Year-end balances of certificates of deposit decreased by $28.1 million, or 12%, as the rates on term products continue to decline in relation to other deposit product alternatives.

From time to time, management utilizes brokered deposits as cost effective wholesale funding sources to support continued loan growth. In the second quarter of 2013, as part of the Company's asset-liability management strategy to protect against rising rates, the Company purchased $49.8 million of brokered CDs, with an average life of approximately five years.

At December 31, 2013, the majority of the combined CD balances (brokered and non-brokered) were scheduled to mature within one year, with approximately 22% due to mature within three months and 41% due within twelve months, with the remaining balances scheduled to mature in 2015 through 2019.

52

The table below sets forth a comparison of the Company’s average deposits and average rates paid for the periods indicated, as well as the percentage of each deposit category to total average deposits.  The annualized average rate on total deposits reflects both interest bearing and non-interest bearing deposits.

	Year ended December 31,
	2013						2012						2011
(Dollars in thousands)	Average Balance		Avg Rate		% of Total		Average Balance		Avg Rate		% of Total		Average Balance		Avg Rate		% of Total
Non-interest demand	$	410,016	—	%	26.4	%	$	353,558	—	%	24.9	%	$	251,536	—	%	19.3	%
Interest checking	193,362		0.06	%	12.5	%	169,178		0.07	%	11.9	%	170,644		0.11	%	13.1	%
Savings	168,922		0.16	%	10.9	%	162,320		0.22	%	11.5	%	153,843		0.37	%	11.8	%
Money market	529,637		0.35	%	34.1	%	478,350		0.49	%	33.7	%	450,554		0.73	%	34.6	%
Total interest bearing non-term deposits	891,921		0.25	%	57.5	%	809,848		0.35	%	57.1	%	775,041		0.51	%	59.5	%
Certificates of deposit	215,363		0.69	%	13.9	%	253,403		0.95	%	17.9	%	275,400		1.23	%	21.2	%
Total non-brokered deposits	1,517,300		0.24	%	97.8	%	1,416,809		0.37	%	99.9	%	1,301,977		0.57	%	100.0	%
Brokered deposits	34,331		1.05	%	2.2	%	1,325		0.96	%	0.1	%	15		0.28	%	—	%
Total	$	1,551,631	0.26	%	100.0	%	$	1,418,134	0.37	%	100.0	%	$	1,301,992	0.57	%	100.0	%

The decrease in the average rate paid on total deposit accounts for 2013 is primarily attributable to continued decreases in market interest rates compared to the prior year.

Borrowed Funds

Borrowed funds consisted of FHLB borrowings of $36.5 million at December 31, 2013 compared to $26.5 million at December 31, 2012 and $4.5 million at December 31, 2011. Borrowed funds increased $10.0 million, or 38%, from December 31, 2012 primarily in overnight advances in the fourth quarter of 2013 to fund the Bank's loan growth and investment purchases.

Outstanding borrowings from the FHLB may be comprised of overnight or short-term borrowings and term advances linked to outstanding commercial loans under various community reinvestment programs of the FHLB.

As of December 31, 2013, all outstanding FHLB advances had maturities one year or less and amounted to $36.5 million with a weighted average rate of 0.3%.

Maximum FHLB and other borrowings outstanding at any month end during 2013, 2012, and 2011 were $57.4 million, $26.5 million and $4.8 million respectively.  The Company did not have any repurchase agreements for securities sold as of December 31, 2013 or 2012. The maximum amounts outstanding under repurchase agreements at any month-end during 2011 was $763 thousand. The table below shows the comparison of the Company’s average borrowed funds and average rates paid for the periods indicated.

53

	Year ended December 31,
	2013				2012				2011
(Dollars in thousands)	Average Balance		Average Rate		Average Balance		Average Rate		Average Balance		Average Rate
FHLB advances	$	24,385	0.39	%	$	3,552	1.50	%	$	4,684	1.82	%
Other borrowed funds	14		0.46	%	89		0.27	%	170		0.25	%
Repurchase agreements	—		—	%	—		—	%	373		0.31	%
Total borrowed funds	$	24,399	0.39	%	$	3,641	1.47	%	$	5,227	1.66	%

The decrease in the average rate on borrowed funds for the year ended December 31, 2013 compared to the prior year was primarily due to lower rates on FHLB advances during the period.

At December 31, 2013, the Bank had the ability to borrow additional funds from the FHLB of up to approximately $300 million and capacity with the FRB of approximately $60 million.

The Company also had $10.8 million of junior subordinated debentures (10.875%; maturing in 2030; currently callable) at both December 31, 2013 and December 31, 2012, respectively.

Liquidity

Liquidity is the ability to meet cash needs arising from, among other things, fluctuations in loans, investments, deposits and borrowings. Liquidity management is the coordination of activities so that cash needs are anticipated and met readily and efficiently. The Company's liquidity policies are set and monitored by ALCO. The Company's asset-liability objectives are to engage in sound balance sheet management strategies, maintain liquidity, provide and enhance access to a diverse and stable source of funds, provide competitively priced and attractive products to customers and conduct funding at a low cost relative to current market conditions. Funds gathered are used to support current commitments, to fund earning asset growth, and to take advantage of selected leverage opportunities.

The Company's liquidity is maintained by projecting cash needs, balancing maturing assets with maturing liabilities, monitoring various liquidity ratios, monitoring deposit flows, maintaining cash flow within the investment portfolio, and maintaining wholesale funding resources.

At December 31, 2013, the Company's wholesale funding sources included borrowing capacity at the FHLB and brokered deposits. In addition, the Company maintains fed fund purchase arrangements with correspondent banks and has access to the FRB Discount Window.

Management believes that the Company has adequate liquidity to meet its obligations. However, if, as a result of general economic conditions, or other events, these sources of external funding become restricted or are eliminated, the Company may not be able to raise adequate funds or may incur substantially higher funding costs or operating restrictions in order to raise the necessary funds to support the Company's operations and growth.

For additional information on the Company's capital planning, see the section entitled “Capital Resources” contained in Item 1 “Business.”

54

Capital Adequacy

The Company is subject to various regulatory capital requirements administered by the federal banking agencies.  The Company's capital policies and capital levels are monitored by ALCO and capital planning is reviewed at least annually by the Executive Committee. Failure to meet minimum capital requirements can result in certain mandatory and possible additional discretionary, supervisory actions by regulators, which, if undertaken, could have a material adverse effect on the Company’s consolidated financial condition.  At December 31, 2013, the capital levels of both the Company and the Bank complied with all applicable minimum capital requirements of the Federal Reserve Board and the FDIC, respectively, and both qualified as “well capitalized” under applicable regulation of the Federal Reserve Board and FDIC.

For additional information regarding the capital requirements applicable to the Company and the Bank and their respective capital levels at December 31, 2013, see the section entitled “Capital Resources” and "Capital Requirements" under the heading "Supervision and Regulation" contained in Item 1 “Business” and Note 9, “Stockholders’ Equity,” to the consolidated financial statements contained in Item 8.

Contractual Obligations and Commitments

The Company is required to make future cash payments under various contractual obligations.  These obligations typically include the repayment of short and long-term borrowings and long-term subordinated debentures, payment of fixed-cash supplemental retirement benefits, payments under non-cancelable operating leases for various premises, and payments due under agreements to purchase goods and future services from a variety of vendors.

The Company is also party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers.  These financial instruments include commitments to originate loans, commitments to sell loans, standby letters of credit and unadvanced loans and lines of credit.  The instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheets.  The contract amounts of these instruments reflect the extent of involvement the Company has in the particular classes of financial instruments.

The following tables summarizes the contractual cash obligations and commitments at December 31, 2013.

	Payments Due By Period
(Dollars in thousands)	Total		With-in 1 Year		>1 – 3 Years		>3 – 5 Years		After 5 Years
Contractual Cash Obligations:
FHLB borrowings	$	36,534	$	36,534	$	—	$	—	$	—
Junior subordinated debentures	10,825		—		—		—		10,825
Supplemental retirement plans	4,146		276		552		552		2,766
Operating lease obligations	8,377		1,087		1,793		1,655		3,842
Vendor contracts	4,200		2,699		1,498		3		—
Total contractual obligations	$	64,082	$	40,596	$	3,843	$	2,210	$	17,433

	Commitment Expiration — By Period
(Dollars in thousands)	Total		With-in 1 Year		>1 – 3 Years		>3 – 5 Years		After 5 Years
Other Commitments:
Unadvanced loans and lines	$	467,516	$	319,179	$	63,624	$	13,691	$	71,022
Commitments to originate loans	34,182		34,182		—		—		—
Letters of credit	17,116		16,331		697		46		42
Commitments to originate loans for sale	2,007		2,007		—		—		—
Commitments to sell loans	3,262		3,262		—		—		—
Total commitments	$	524,083	$	374,961	$	64,321	$	13,737	$	71,064

55

Investment Assets Under Management

The Company provides a wide range of investment advisory and wealth management services, including brokerage, trust, and investment management (together, “investment advisory services”). The market values of the related assets managed are affected by fluctuations in the financial markets. Also included in the investment assets under management total are commercial sweep accounts that are invested in third party money market mutual funds.

The following table sets forth the fair market value of investment assets under management by certain categories at the dates indicated. 

	December 31,
(Dollars in thousands)	2013		2012		2011
Investment advisory and management services	$	537,545	$	480,216	$	389,569
Brokerage and management services	127,472		108,679		108,190
Total investment advisory assets	665,017		588,895		497,759
Commercial sweep accounts	2,313		3,460		7,404
Investment assets under management	$	667,330	$	592,355	$	505,163

Investment assets under management increased by $75.0 million, or 13%, from December 31, 2012 to December 31, 2013.  The increase is primarily attributable to asset growth from market value appreciation and new business.

Total assets under management, which includes total assets, investment assets under management, and loans serviced for others amounted to $2.59 billion at December 31, 2013 compared to $2.33 billion at December 31, 2012 and $2.06 billion at December 31, 2011. Investment assets under management and loans serviced for others are not carried as assets on the Company's balance sheet.

Results of Operations

COMPARISON OF YEARS ENDED December 31, 2013 AND 2012

Unless otherwise indicated, the reported results are for the year ended December 31, 2013 with the “comparable year” or “prior year” being the year ended December 31, 2012. Average yields are presented on a tax equivalent basis.

Net Income

The Company earned net income in 2013 of $13.5 million compared to $12.4 million for 2012, an increase of 9%.  Diluted earnings per share for 2013 was $1.36 compared to $1.28 for the year ended 2012, which represented an increase of 6%.

In 2013, our financial results included increases in net interest income, non-interest income, operating expenses and the provision for loan losses over the prior year, due primarily to the Company's growth. Non-interest income also increased as a result of higher gains on securities sales in the current year.

Net Interest Income

The Company’s net interest income for the year ended December 31, 2013 was $65.8 million compared to $61.9 million for the year ended December 31, 2012, an increase of $3.9 million, or 6%.  The increase in net interest income over the comparable year period was primarily due to revenue generated from loan growth, partially offset by a decrease in tax equivalent net interest margin.

Net Interest Margin

Tax equivalent net interest margin decreased by 20 basis points, to 4.07% for the year ended December 31, 2013, compared to 4.27% for the prior year. Consistent with the industry, the 2013 margin continued to trend downward through most of 2013, as the yield on interest-earning assets declined faster than the cost of funding, as funding rates have reached a level leaving little room for significant reductions. Interest earning asset yields declined 30 basis points compared to the prior year, while the cost of funding declined by 11 basis points over the same period.

56

Rate/Volume Analysis

The following table sets forth the extent to which changes in interest rates and changes in the average balances of interest-earning assets and interest-bearing liabilities have affected interest income and expense during the years ended December 31, 2013 and 2012.  For each category of interest-earning assets and interest-bearing liabilities, information is provided on changes attributable to (1) volume (change in average portfolio balance multiplied by prior year average rate); (2) interest rate (change in average interest rate multiplied by prior year average balance); and (3) rate and volume (the remaining difference).

	December 31,
	2013 vs. 2012												2012 vs. 2011
				Increase (Decrease) due to												Increase (Decrease) due to
(Dollars in thousands)	Net Change			Volume			Rate			Rate/ Volume			Net Change			Volume			Rate			Rate/ Volume
Interest Income
Loans and loans held for sale	$	2,728		$	8,084		$	(4,716	)	$	(640	)	$	1,582		$	5,287		$	(3,356	)	$	(349	)
Investment Securities	3			601			(421		)	(177		)	(161		)	1,065			(926		)	(300		)
Other Interest Earning Assets (1)	(14		)	(20		)	4			2			15			(12		)	35			(8		)
Total interest earning assets	2,717			8,665			(5,133		)	(815		)	1,436			6,340			(4,247		)	(657		)
Interest Expense
Interest checking, savings, and money market	(623		)	287			(810		)	(100		)	(1,147		)	177			(1,240		)	(84		)
Certificates of deposit	(931		)	(361		)	(659		)	89			(981		)	(271		)	(771		)	61
Brokered Deposits	348			317			1			30			13			—			—			13
Borrowed funds	42			305			(39		)	(224		)	(33		)	(23		)	(15		)	5
Total interest-bearing funding	(1,164		)	548			(1,507		)	(205		)	(2,148		)	(117		)	(2,026		)	(5		)
Change in net interest income	$	3,881		$	8,117		$	(3,626	)	$	(610	)	$	3,584		$	6,457		$	(2,221	)	$	(652	)

____________________

(1) Other interest-earning assets includes dividends on FHLB stock and income on short-term investments.

The table on the following page presents the Company’s average balance sheet, net interest income and average rates for the years ended December 31, 2013, 2012 and 2011.

57

	Average Balances, Interest and Average Yields
	Year ended December 31, 2013						Year ended December 31, 2012						Year ended December 31, 2011
(Dollars in thousands)	Average Balance		Interest		Average Yield(1)		Average Balance		Interest		Average Yield (1)		Average Balance		Interest		Average Yield(1)
Assets:
Loans and loans held for sale (2)	$	1,441,522	$	67,673	4.74	%	$	1,285,513	$	64,945	5.11	%	$	1,188,055	$	63,363	5.39	%
Investments (3)	184,590		3,381		2.40	%	162,007		3,378		2.66	%	130,406		3,539		3.37	%
Other Interest Earning Assets (4)	31,631		68		0.21	%	41,643		82		0.20	%	50,336		67		0.13	%
Total interest earnings assets	1,657,743		71,122		4.40	%	1,489,163		68,405		4.70	%	1,368,797		66,969		5.00	%
Other assets	86,149						87,362						81,002
Total assets	$	1,743,892					$	1,576,525					$	1,449,799
Liabilities and stockholders’ equity:
Interest checking, savings and money market	$	891,921	2,217		0.25	%	$	809,848	2,840		0.35	%	$	775,056	3,987		0.51	%
Certificates of deposit	215,363		1,480		0.69	%	253,403		2,411		0.95	%	275,400		3,392		1.23	%
Brokered deposits	34,331		361		1.05	%	1,325		13		0.96	%	—		—		—	%
Borrowed funds	24,399		96		0.39	%	3,641		54		1.47	%	5,227		87		1.66	%
Junior subordinated debentures	10,825		1,177		10.88	%	10,825		1,177		10.88	%	10,825		1,177		10.88	%
Total interest-bearing funding	1,176,839		5,331		0.45	%	1,079,042		6,495		0.60	%	1,066,508		8,643		0.81	%
Net interest rate spread					3.95	%					4.10	%					4.19	%
Demand deposits	410,016		—		—		353,558		—		—		251,536		—		—
Total deposits, borrowed funds and debentures	1,586,855		5,331		0.34	%	1,432,600		6,495		0.45	%	1,318,044		8,643		0.66	%
Other liabilities	11,922						10,435						9,892
Total liabilities	1,598,777						1,443,035						1,327,936
Stockholders’ equity	145,115						133,490						121,863
Total liabilities and stockholders’ equity	$	1,743,892					$	1,576,525					$	1,449,799
Net interest income			$	65,791					$	61,910					$	58,326
Net interest margin (tax equivalent)					4.07	%					4.27	%					4.37	%

_________________________

(1) Average yields are presented on a tax equivalent basis. The tax equivalent effect associated with loans and investments, which was not included in the interest amount above, was $1.7 million, $1.6 million, and $1.5 million for the years ended December 31, 2013, 2012 and 2011, respectively.

(2) Average loans include non-accrual loans, and are net of average deferred loan fees.

(3) Average investments are presented at average amortized cost.

(4) Other interest earning assets includes interest-earning assets, fed funds sold, and FHLB Stock.

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Interest and Dividend Income

Total interest income for the year ended December 31, 2013 was $71.1 million, an increase of $2.7 million, or 4%, from the prior year. The increase resulted primarily from growth of $168.6 million, or 11%, in the average balance of interest earning assets for the year ended December 31, 2013, partially offset by a 30 basis point decline in the average tax equivalent yield on interest earning assets, due to the lower interest rate environment during most of 2013.

Interest income on loans and loans held for sale, which accounted for the majority of interest income, increased $2.7 million, or 4%, compared to the prior period, primarily due to loan growth partially offset by a decline in loan yields. Average loan and loans held for sale balances increased $156.0 million, or 12%, compared to the prior year, and amounted to $1.44 billion for the year ended December 31, 2013, while the average yield on loans declined 37 basis points compared to the prior period and amounted to 4.74% for the year ended December 31, 2013.

Income on investment securities amounted to $3.4 million and was relatively flat compared to the same period in 2012, as income from investment purchases in 2013 was offset by lower yields. The average balance of investment securities increased by $22.6 million, or 14%, while investment yields declined by 26 basis points.

Income on other interest earning assets has decreased$14 thousand, or 17%, compared to the same period in 2012 primarily resulting from a decrease in the average balance of these investments, as funds were utilized to purchase longer term investment securities and fund loan growth.

Interest Expense

Total interest expense amounted to $5.3 million, a decrease of $1.2 million, or 18%, compared to the prior year.  The decrease resulted primarily from an 11 basis point decrease in the average cost of funding due primarily to the reduction in deposit market interest rates over the period, partially offset by an increase in wholesale funding.

Interest expense on interest checking, savings and money market accounts decreased $623 thousand, or 22%, over the comparable year, resulting primarily from a decrease in the average cost of these accounts, partially offset by an increase in average balances. The average cost of these accounts decreased 10 basis points to 0.25%, while the average balance increased $82.1 million, or 10%, over the prior year.

Interest expense on CDs amounted to $1.5 million, a decrease of $931 thousand, or 39%, over the comparable period. The decrease was primarily due to a decline in rates over the comparable period and to a lesser extent, decreased average balances. The average cost of CDs decreased26 basis points, to 0.69%, for the year ended December 31, 2013 while the average balances decreased$38.0 million, or 15%, compared to the same prior period in 2012.

Interest expense on brokered deposits amounted to $361 thousand, an increase of $348 thousand over the comparable period, primarily due to increased average balances. The average balances increased by $33.0 million compared to the 2012 period and the average cost of brokered deposits amounted to 1.05%, for the year ended December 31, 2013.

Interest expense on borrowed funds, consisting primarily of FHLB borrowings, increased by $42 thousand over the prior year.  The increase was primarily attributed to the increase in average balances of approximately $20.8 million, partially offset by a decline of 108 basis points in the average costs of these borrowings.

 The interest expense and average rate on junior subordinated debentures was $1.2 million and 10.88%, respectively, for both years ended December 31, 2013 and 2012.

The average balance of non-interest bearing demand deposits increased $56.5 million, or 16%, to $410.0 million at December 31, 2013. The average balance of these accounts represented 26% and 25% of total average deposits for the years ended December 31, 2013 and 2012, respectively. Non-interest bearing demand deposits are an important component of the Bank’s core funding strategy.

59

Provision for Loan Losses

The provision for loan losses was $3.3 million and $2.8 million for the years ended December 31, 2013 and 2012, respectively. The provision made to the allowance for loan losses takes into consideration the level of loan growth and an estimate of credit risk, which includes such items as adversely classified and non-performing loans, the estimated specific reserves needed for impaired loans, the level of net charge-offs, and the estimated impact of current economic conditions on credit quality. The provision reflects management’s estimate of the loan loss allowance necessary to support the level of credit risk inherent in the portfolio during the period.

See “Credit Risk," "Asset Quality,” and “Allowance for Loan Losses” under the heading, “Financial Condition,” in this Item 7 above, for further information regarding the provision for loan losses. 

Non-Interest Income

Non-interest income for the year ended December 31, 2013 increased $1.6 million, or 13%, compared to 2012. The significant changes are discussed below.

The following table sets forth the components of non-interest income and the related changes for the periods indicated.

	Year Ended December 31,
(Dollars in thousands)	2013		2012		Change			% Change
Investment advisory fees	$	4,285	$	3,838	$	447		12	%
Deposit and interchange fees	4,788		4,500		288			6	%
Income on bank-owned life insurance, net	459		506		(47		)	(9	)%
Net gains on sales of investment securities	1,239		236		1,003			425	%
Gains on sales of loans	792		989		(197		)	(20	)%
Other income	2,229		2,106		123			6	%
Total non-interest income	$	13,792	$	12,175	$	1,617		13	%

Investment advisory income increased$447 thousand, or 12%, compared to the same period in the prior year, primarily due to net asset growth from market value appreciation and new business.

Deposit and interchange fees increased$288 thousand, or 6%. Deposit and interchange fees primarily include fees received on customer deposit accounts and ATM interchange income, partially offset by the cost of our deposit rewards program.

Net gains on security sales for the year ended December 31, 2013increased$1.0 million compared to the prior year, primarily in the first half of 2013. Investment sales are typically driven by market or strategic opportunities.

During 2013, the Company sold $42.6 million in residential loans, compared to $50.8 million for the prior year.  Loans sold generated gains on sales of $792 thousand and $989 thousand for 2013 and 2012, respectively. The decrease in gains on loans sales resulted primarily from the decrease in the amount of loans sold due to rising interest rates impacting refinancing activity.

Non-Interest Expense

Non-interest expense for the year ended December 31, 2013 increased $3.2 million, or 6%, compared to 2012. The significant changes are discussed below:

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The following table sets forth the components of non-interest expense and the related changes for the periods indicated.

	Year Ended December 31,
(Dollars in thousands)	2013		2012		Change		% Change
Salaries and employee benefits	$	33,551	$	32,034	$	1,517	5	%
Occupancy and equipment expenses	6,035		5,678		357		6	%
Technology and telecommunications expenses	4,647		4,316		331		8	%
Advertising and public relations expenses	2,708		2,267		441		19	%
Audit, legal and other professional fees	1,742		1,675		67		4	%
Deposit Insurance Premiums	1,118		1,064		54		5	%
Supplies and postage expenses	967		925		42		5	%
Investment advisory and custodial expenses	540		438		102		23	%
Other operating expenses	4,516		4,215		301		7	%
Total non-interest expense	$	55,824	$	52,612	$	3,212	6	%

The increase in salaries and benefits expense was primarily due to the personnel and benefit costs necessary to support the Company’s strategic growth and market expansion initiatives since the prior period. Partially offsetting this increase was a net benefit of $337 thousand resulting from rising interest rates on certain benefit plans offered by the Company compared to a net cost of $295 thousand on these items in 2012.

Occupancy and equipment expenses increased primarily due to branch expansion and investments in our facilities.

Technology and telecommunications expense increased, primarily in software, as a result of investments to support the Company's growth and network infrastructure, improve our service capabilities and enhance business continuity.

Advertising and public relations expenses increased due primarily to the timing of the Bank's Celebration of Excellence event, last held in the second quarter of 2013, which recognized local businesses and individuals for their commitment to the communities we serve, and due to additional contribution and public relations expenditures.

Investment advisory and custodial expenses increased primarily as a result of increased business with our Enterprise Investment Advisors.

Other non-interest expense increased primarily due to increased deposit product and loan servicing costs and business developments costs, partially offset by a decrease in REO and workout loan expenses in the current year.

Income Tax Expense

The effective tax rate for the year ended December 31, 2013 and December 31, 2012 was 33.9% for both periods, respectively. Refer to Note 12 "Income Taxes" to the Consolidated Financial Statements, contained in Item 8, for additional information about the Company's taxes.

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Results of Operations

COMPARISON OF YEARS ENDED DECEMBER 31, 2012 AND 2011

Unless otherwise indicated, the reported results are for the year ended December 31, 2012 with the “comparable year” or “prior year” being the year ended December 31, 2011. Average yields are presented on a tax equivalent basis.

Net Income

The Company earned net income in 2012 of $12.4 million compared to $10.9 million for 2011, an increase of 13%.  Earnings per share for 2012 were $1.29 and $1.28 on a basic and diluted basis, compared to $1.16 on both a basic and diluted basis for the year ended 2011, which represented increases of 11% and 10%, respectively.

The Company's growth contributed to increases in net interest income and the level of operating expenses for the year ended December 31, 2012. Additionally, in 2012, the provision for loan losses decreased compared to the 2011 periods, while non-interest income increased.

Net Interest Margin

Tax equivalent net interest margin decreased by 10 basis points, to 4.27% for the year ended December 31, 2012, compared to 4.37% for the prior year. Consistent with the industry, the 2012 margin continued to trend downward, as the yield on interest-earning assets declined faster than the cost of funding, as funding rates have reached a level leaving little room for significant reductions. Interest earning asset yields declined 30 basis points compared to the prior year, while the cost of funding declined by 21 basis points over the same period.

Net Interest Income

The Company’s net interest income was $61.9 million for the year ended December 31, 2012, an increase of $3.6 million, or 6%, over the prior year. The increase was primarily due to revenue generated from loan growth, which has been funded primarily through non-interest bearing deposits, partially offset by a decrease in net interest margin.

Interest Income

Total interest income for the year ended December 31, 2012 was $68.4 million, an increase of $1.4 million, or 2%, from the prior year. The increase resulted primarily from growth in the average balance of interest earning assets of $120.4 million, or 9%, for the year ended December 31, 2012, partially offset by a 30 basis point decline in the average tax equivalent yield on interest earning assets, due to the lower interest rate environment during 2012.

Interest income on loans and loans held for sale, which accounts for the majority of interest income, increased $1.6 million, or 2%, compared to the prior period, primarily due to loan growth partially offset by a decline in loan yields. Average loan and loans held for sale balances increased $97.5 million, or 8%, compared to the prior year, and amounted to $1.29 billion for the year ended December 31, 2012, while the average yield on loans declined 28 basis points compared to the prior period and amounted to 5.11% for the year ended December 31, 2012.

Total investment income amounted to $3.5 million for the year ended December 31, 2012 a decrease of $146 thousand, or 4%, compared to the prior period. The decrease resulted primarily from the impact of the 71 basis point decrease in the average yield on investment securities, as investments that were sold, matured, or were called had higher yields than investment purchased during the period. Partially offsetting this decrease, was a decrease in the average balance of $8.7 million, or 17%, in low yielding other interest earning assets and an increase of $31.6 million, or 24%, in the average balance of investments over the year ended December 31, 2011.

Interest Expense

Total interest expense amounted to $6.5 million, a decrease of $2.1 million, or 25%, compared to the prior year.  The decrease resulted primarily from a 21 basis point decrease in the average cost of funding due primarily to the reduction in deposit market interest rates over the period.

62

Interest expense on interest checking, savings and money market accounts decreased $1.1 million, or 29%, over the comparable year, resulting primarily from a decrease in the average cost of these accounts, partially offset by an increase in average balances. The average cost of these accounts decreased 16 basis points to 0.35%, while the average balance increased $34.8 million, or 4%, over the prior year.

Interest expense on total CDs (brokered and non-brokered) decreased $968 thousand or 29%, compared to the prior year and amounted to $2.4 million for the year ended December 31, 2012. The decrease primarily resulted from a decline of 28 basis points in the average cost of non-brokered CDs from market rate decreases and the repricing of term CDs. Additionally, the decline in average balances of total CDs of $20.7 million, or 8%, since the prior year, also reduced CD interest expense. The Company had $1.3 million in average brokered CD balances for the year ended December 31, 2012. The Company did not have any brokered CDs in 2011.

Interest expense on borrowed funds, consisting primarily of FHLB borrowings, decreased by $33 thousand over the prior year.  The decrease was attributable to both a reduction in the average balances of borrowed funds and lower interest rates. Average balances declined by $1.6 million, or 30%, as a result of deposit growth over the prior period, while the average cost of borrowed funds decreased 19 basis points, to 1.47%, for the year ended December 31, 2012.

The interest expense and average rate on junior subordinated debentures was $1.2 million and 10.88%, respectively, for both years ended December 31, 2012 and 2011.

The average balance of non-interest bearing demand deposits increased $102.0 million, or 41%, to $353.6 million at December 31, 2012. The average balance of these accounts represented 25% and 19% of total average deposits for the years ended December 31, 2012 and 2011, respectively. Non-interest bearing demand deposits are an important component of the Bank’s core funding strategy.

Provision for Loan Losses

The provision for loan losses was $2.8 million and $5.2 million for the years ended December 31, 2012 and 2011, respectively. The provision made to the allowance for loan losses takes into consideration the level of loan growth, adversely classified and non-performing loans, specific reserves for impaired loans, net charge-offs, and the estimated impact of current economic conditions on credit quality. The provision reflects management’s estimate of the loan loss allowance necessary to support the level of credit risk inherent in the portfolio during the period.

See “Credit Risk/Asset Quality” and “Allowance for Loan Losses” under the heading, “Financial Condition,” in this Item 7 above, for further information regarding the provision for loan losses. 

Non-Interest Income

Non-interest income for the year ended December 31, 2012 increased $233 thousand, or 2%, compared to 2011. The significant changes are discussed below.

The following table sets forth the components of non-interest income and the related changes for the periods indicated.

	Year Ended December 31,
(Dollars in thousands)	2012		2011		Change			% Change
Investment advisory fees	$	3,838	$	3,728	$	110		3	%
Deposit and interchange fees	4,500		4,438		62			1	%
Income on bank-owned life insurance, net	506		548		(42		)	(8	)%
Net gains on sales of investment securities	236		791		(555		)	(70	)%
Gains on sales of loans	989		687		302			44	%
Other income	2,106		1,750		356			20	%
Total non-interest income	$	12,175	$	11,942	$	233		2	%

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Investment advisory fees increased primarily due to net asset growth from net new business and net increases in market values due to market fluctuations.

Increases in deposit and interchange fees, were primarily due to increased electronic transaction fee income. The increase in income was partially offset by the cost of our deposit rewards program introduced during the fourth quarter of 2011, which is included in deposit and interchange fees.

Net gains on sales of investment securities fluctuate year to year, as investment sales are typically driven by market or strategic opportunities.

During 2012 the Company sold $50.8 million in residential loans, compared to $37.1 million for the prior year.  Loans sold generated gains on sales of $989 thousand and $687 thousand for 2012 and 2011 respectively. The increase in gains on loans sales resulted primarily from the increase in the amount of loans sold.

The increase in other income is primarily due to increases in insurance commissions, net gains on OREO sales and other fee income.

Non-Interest Expense

Non-interest expense for the year ended December 31, 2012 increased $3.6 million, or 7%, compared to 2011. The significant changes are discussed below:

The following table sets forth the components of non-interest expense and the related changes for the periods indicated.

	Year Ended December 31,
(Dollars in thousands)	2012		2011		Change			% Change
Salaries and employee benefits	$	32,034	$	28,671	$	3,363		12	%
Occupancy and equipment expenses	5,678		5,485		193			4	%
Technology and telecommunications expenses	4,316		3,886		430			11	%
Advertising and public relations expenses	2,267		2,661		(394		)	(15	)%
Deposit Insurance Premiums	1,064		1,319		(255		)	(19	)%
Audit, legal and other professional fees	1,675		1,393		282			20	%
Supplies and postage expenses	925		882		43			5	%
Investment advisory and custodial expenses	438		412		26			6	%
Other operating expenses	4,215		4,257		(42		)	(1	)%
Total non-interest expense	$	52,612	$	48,966	$	3,646		7	%

The increase in salaries and benefits expense was primarily due to the personnel and benefit costs necessary to support the Company’s strategic growth initiatives including annual salary adjustments, new branches, incentives, and an increase in health insurance rates since the prior period.

Occupancy and equipment expenses increased primarily due to branch expansion and investments in our facilities.

Technology and telecommunications expense increased as a result of investments to improve our service capabilities, support the Company's growth and enhance business continuity and network infrastructure.

Advertising and public relations expenses decreased due primarily to the timing of the Bank's Celebration of Excellence event, last held in the fourth quarter of 2011, which recognized local businesses and individuals for their commitment to the communities we serve.

Deposit insurance premiums decreased resulting from changes made by the FDIC in order to put more of the insurance fund burden on higher risk institutions. See the discussion under the heading “Deposit Insurance” contained in Item 1, “Business”,

64

under the heading “Supervision and Regulation,” for further information regarding the Company’s deposit insurance assessment.

Audit, legal and other professional expenses increased primarily due to increases in legal expenses in 2012 related to strategic initiatives and other general business costs, including compliance.

Other non-interest expense decreased primarily due to a reduction in OREO and workout loan expenses and outsourced services, partially offset by increases in training expense, expenses related to tax credits, and ATM rebates.

Income Tax Expense

Income tax expense for the year ended December 31, 2012 and December 31, 2011 was $6.3 million and $5.2 million, respectively.  The effective tax rate for the year ended December 31, 2012 and December 31, 2011 was 33.9%, and 32.0%, respectively. The increase in the effective tax rate was primarily due to higher taxable income and the diminished impact of tax exempt income as a result of higher earnings. Refer to Note 12 "Income Taxes" to the Consolidated Financial Statements, contained in Item 8, for additional information about the Company's taxes.

Recent Accounting Pronouncements

In January 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-04, Receivables - Troubled Debt Restructurings by Creditors (Subtopic 310-40) - Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The amendments are intended to reduce diversity of practice by clarifying when a creditor should be considered to have received physical possession of residential real estate property collateralizing a residential mortgage loan, such that the loan should be removed, and the real estate property recognized, on the financial statements. Additionally, the amendments require interim and annual disclosure of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in collateralized residential mortgage loans that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendments in this ASU are effective for public business entities for annual periods and interim reporting periods beginning after December 15, 2014. As this ASU primarily offers clarification of existing standards and added disclosures, the adoption of this ASU in the first quarter of 2015 is not expected to have a material impact on the Company's financial statements, or results of operations.

In January 2014, the FASB issued ASU No. 2014-01, Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects. The amendments in this ASU apply to all reporting entities that invest in qualified affordable housing projects through limited liability entities that are flow through entities for tax purposes. The amendments in this ASU eliminate the effective yield election and permit reporting entities to make an accounting policy election to account for such investments using the proportional amortization method if certain conditions are met. The investor must recognize any subsequent impairment loss when it is more likely than not that the carrying amount of the investment will not be realized. Those not electing the proportional amortization method would account for the investment using the equity method or cost method. The decision to apply the proportional amortization method of accounting is an accounting policy decision that must be applied consistently to all qualifying affordable housing project investments rather than a decision to be applied to individual investments. A reporting entity must disclose information that enables users of its financial statements to understand the nature of such investments and the effect of the measurement, and the related tax credits, on its financial position and results of operations. The amendments in this Update are to be applied retrospectively to all periods presented. A reporting entity that uses the effective yield method to account for its investments in qualified affordable housing projects before the date of adoption may continue to apply the effective yield method for those preexisting investments. The amendments in this ASU are effective for public business entities for annual periods and interim reporting periods beginning after December 15, 2014. Early adoption is permitted. The adoption by the Company of this ASU is not expected to have a material impact on the Company's financial statements, or results of operations.

In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU") No. 2013-02, Comprehensive Income (Topic 220): Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income.  The new amendments require an organization to present the effects on the income statement of significant amounts reclassified out of accumulated other comprehensive income or cross-reference to other disclosures currently required under U.S. GAAP for certain items. The new amended standard is effective for annual periods beginning after December 15, 2012, and interim periods within those annual periods.  As this ASU addresses only disclosure requirements, this adoption in the first quarter of 2013 did not have a material impact on the Company's financial statements. See subsection (r) "Reporting

65

Comprehensive Income" contained within Note 1, to the consolidated financial statements for the disclosure of the effects of amounts reclassified out of accumulated other comprehensive income.

Impact of Inflation and Changing Prices

The Company’s asset and liability structure is substantially different from that of an industrial company in that virtually all assets and liabilities of the Company are monetary in nature.  Management believes the impact of inflation on financial results depends upon the Company’s ability to react to changes in interest rates and by such reaction, reduce the inflationary impact on performance.  Interest rates do not necessarily move in the same direction, or at the same magnitude, as the prices of other goods and services.  As discussed previously, management seeks to manage the relationship between interest-sensitive assets and liabilities in order to protect against wide net interest income fluctuations, including those resulting from inflation.

Various information shown elsewhere in this annual report will assist in the understanding of how well the Company is positioned to react to changing interest rates and inflationary trends.  In particular additional information related to the net interest margin sensitivity analysis is contained in Item 7A below and other maturity and repricing information of the Company’s investment securities, certificates of deposits and borrowed funds is contained in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” under the heading “Financial Condition” in this report.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

Interest Margin Sensitivity Analysis

The Company's primary market risk is interest rate risk. Oversight of interest rate risk management is centered on the ALCO. Annually, ALCO reviews and approves the Company's asset-liability management policy, which provides management with guidelines for controlling interest rate risk, as measured through net interest income sensitivity to changes in interest rates, within certain tolerance levels. ALCO also establishes and monitors guidelines for the Company's liquidity and capital ratios.

The Company's asset-liability management strategies and guidelines are reviewed on a periodic basis by management and presented and discussed with ALCO on at least a quarterly basis. These strategies and guidelines are revised based on changes in interest rate levels, general economic conditions, competition in the marketplace, the current interest rate risk position of the Company, anticipated growth and other factors.

One of the principal factors in maintaining planned levels of net interest income is the ability to design effective strategies to manage the impact of interest rate changes on future net interest income. Quarterly, management completes a net interest income sensitivity analysis, which is presented to the committee. This analysis includes a simulation of the Company's net interest income under various interest rate scenarios. Variations in the interest rate environment affect numerous factors, including prepayment speeds, reinvestment rates, maturities of investments (due to call provisions), and interest rates on various asset and liability accounts.

The Company can be subject to margin compression depending on the economic environment and the shape of the yield curve. Under the Company's current balance sheet position, the Company's margin generally performs slightly better over time in a rising rate environment, while it generally decreases in a declining rate environment and when the yield curve is flattening or inverted.

Under a flattening yield curve scenario, margin compression occurs as the spread between the cost of funding and the yield on interest earning assets narrows. Under this scenario the degree of margin compression is highly dependent on the Company's ability to fund asset growth through lower cost deposits. However, if the curve is flattening, while short-term rates are rising, the adverse impact on margin may be somewhat delayed, as increases in the Prime Rate will initially result in the Company's asset yields re-pricing more quickly than funding costs.

Under an inverted yield curve situation, shorter-term rates exceed longer-term rates, and the impact on margin is similar but more adverse than the flat curve scenario. Again, however, the extent of the impact on margin is highly dependent on the Company's balance sheet mix.

In a declining rate environment, margin compression will eventually occur as the yield on interest earning assets decreases more rapidly than decreases in funding costs. The primary causes would be the impact of interest rate decreases (including decreases in the Prime Rate) on adjustable rate loans and the fact that decreases in deposit rates may be limited or lag decreases in the Prime Rate.

66

Net interest margin through most of 2013 continued to trend downward as the yield on interest earning assets has declined faster than the rate on cost of funds, which is approaching a floor. Additional margin compression may occur if loans continue to re-price downward while the cost of deposits remains at the same level.

At December 31, 2013, management continues to consider the Company's primary interest rate risk exposure to be margin compression that may result from changes in interest rates and/or changes in the mix of the Company's balance sheet components. This would include the mix of fixed versus variable rate loans and investments on the asset side, and higher cost versus lower cost deposits and overnight borrowings versus term borrowings and certificates of deposit on the liability side.

The following table summarizes the projected cumulative net interest income for a 24-month period as of December 31, 2013, assuming a parallel yield curve shift and gradual interest rate changes applied during the period. Although, net interest income is projected to decline slightly over a 24 month period if rates rise, it is projected to increase in the long-term as adjustable rate loans re-price.

	December 31, 2013
(Dollars in thousands)	Rates Unchanged		Rates Rise 200 BP
Interest Earning Assets:
Loans and loans held for sale	$	140,310	$	155,379
Collateralized mortgage obligations and other mortgage backed securities	3,705		3,937
Other investments	4,911		5,406
Total interest income	148,926		164,722
Interest Earning Liabilities:
Certificates of deposit (including brokered deposits)	3,476		6,230
Interest bearing checking, money market, savings	4,095		18,961
Borrowed funds	462		1,557
Junior subordinated debentures	2,354		2,355
Total interest expense	10,387		29,103
Net interest income	$	138,539	$	135,619

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Item 8. Financial Statements and Supplementary Data

Index to Consolidated Financial Statements

	Page
Consolidated Balance Sheets as of December 31, 2013 and 2012	69
Consolidated Statements of Income for the years ended December 31, 2013, 2012 and 2011	70
Consolidated Statement of Comprehensive income for the years ended December 31, 2013, 2012 and 2011	71
Consolidated Statements of Changes in Stockholders’ Equity for the years ended December 31, 2013, 2012 and 2011	72
Consolidated Statements of Cash Flows for the years ended December 31, 2013, 2012, and 2011	73
Notes to the Consolidated Financial Statements	74
Report of Independent Registered Public Accounting Firm on Consolidated Financial Statements	122
Report of Independent Registered Public Accounting Firm on Internal Control Over Financial Reporting	123

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ENTERPRISE BANCORP, INC.

Consolidated Balance Sheets 

(Dollars in thousands)	December 31, 2013		December 31, 2012
Assets
Cash and cash equivalents:
Cash and due from banks	$	41,362	$	38,007
Interest-earning deposits	10,153		12,218
Fed funds sold	2,218		2,510
Total cash and cash equivalents	53,733		52,735
Investment securities at fair value	215,369		184,464
Federal Home Loan Bank Stock	4,324		4,260
Loans held for sale	1,255		8,557
Loans, less allowance for loan losses of $26,967 and $24,254 at December 31, 2013 and 2012, respectively	1,497,089		1,335,401
Premises and equipment	29,891		27,206
Accrued interest receivable	6,186		5,828
Deferred income taxes, net	13,927		12,548
Bank-owned life insurance	15,902		15,443
Prepaid income taxes	443		174
Prepaid expenses and other assets	6,150		13,454
Goodwill	5,656		5,656
Total assets	$	1,849,925	$	1,665,726
Liabilities and Stockholders’ Equity
Liabilities
Deposits	$	1,635,992	$	1,475,027
Borrowed funds	36,534		26,540
Junior subordinated debentures	10,825		10,825
Accrued expenses and other liabilities	14,675		13,182
Accrued interest payable	565		603
Total liabilities	1,698,591		1,526,177
Commitments and Contingencies
Stockholders’ Equity
Preferred stock, $0.01 par value per share; 1,000,000 shares authorized; no shares issued	—		—
Common stock $0.01 par value per share; 20,000,000 shares authorized; 9,992,560 issued and outstanding at December 31, 2013 (including 170,365 shares of unvested participating restricted awards) and 9,676,477 shares issued and outstanding at December 31, 2012 (including 154,186 shares of unvested participating restricted awards)	100		97
Additional paid-in capital	52,936		48,194
Retained earnings	96,153		87,159
Accumulated other comprehensive income	2,145		4,099
Total stockholders’ equity	151,334		139,549
Total liabilities and stockholders’ equity	$	1,849,925	$	1,665,726

See accompanying notes to consolidated financial statements.

69

ENTERPRISE BANCORP, INC.

Consolidated Statements of Income

Years Ended December 31, 

(Dollars in thousands, except per share data)	2013		2012		2011
Interest and dividend income:
Loans and loans held for sale	$	67,673	$	64,945	$	63,363
Investment securities	3,381		3,378		3,539
Other interest-earning assets	68		82		67
Total interest and dividend income	71,122		68,405		66,969
Interest expense:
Deposits	4,058		5,264		7,379
Borrowed funds	96		54		87
Junior subordinated debentures	1,177		1,177		1,177
Total interest expense	5,331		6,495		8,643
Net interest income	65,791		61,910		58,326
Provision for loan losses	3,279		2,750		5,197
Net interest income after provision for loan losses	62,512		59,160		53,129
Non-interest income:
Investment advisory fees	4,285		3,838		3,728
Deposit and interchange fees	4,788		4,500		4,438
Income on bank-owned life insurance, net	459		506		548
Net gains on sales of investment securities	1,239		236		791
Gains on sales of loans	792		989		687
Other income	2,229		2,106		1,750
Total non-interest income	13,792		12,175		11,942
Non-interest expense:
Salaries and employee benefits	33,551		32,034		28,671
Occupancy and equipment expenses	6,035		5,678		5,485
Technology and telecommunications expenses	4,647		4,316		3,886
Advertising and public relations expenses	2,708		2,267		2,661
Audit, legal and other professional fees	1,742		1,675		1,393
Deposit insurance premiums	1,118		1,064		1,319
Supplies and postage expenses	967		925		882
Investment advisory and custodial expenses	540		438		412
Other operating expenses	4,516		4,215		4,257
Total non-interest expense	55,824		52,612		48,966
Income before income taxes	20,480		18,723		16,105
Provision for income taxes	6,951		6,348		5,161
Net income	$	13,529	$	12,375	$	10,944
Basic earnings per share	$	1.37	$	1.29	$	1.16
Diluted earnings per share	$	1.36	$	1.28	$	1.16
Basic weighted average common shares outstanding	9,862,678		9,586,783		9,401,714
Diluted weighted average common shares outstanding	9,950,609		9,660,676		9,445,725

See accompanying notes to consolidated financial statements.

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ENTERPRISE BANCORP, INC.

Consolidated Statements of Comprehensive Income

Years Ended December 31,

(Dollars in thousands)	2013			2012			2011
Net income	$	13,529		$	12,375		$	10,944
Other comprehensive income, net of taxes:
Gross unrealized holding (losses)/gains on investments arising during the period	(1,910		)	1,625			2,670
Income tax benefit/(expense)	752			(569		)	(953		)
Net unrealized holding gains, net of tax	(1,158		)	1,056			1,717
Less: Reclassification adjustment for impairment included in net income:
Other than temporary impairment loss arising during the period	—			—			(3		)
Income tax benefit	—			—			1
Reclassification adjustment for impairment realized, net of tax	—			—			(2		)
Less: Reclassification adjustment for net gains included in net income
Net realized gains on sales of securities during the period	1,239			236			791
Income tax expense	(443		)	(83		)	(278		)
Reclassification adjustment for gains realized, net of tax	796			153			513
Total other comprehensive income (loss)	(1,954		)	903			1,206
Comprehensive income	$	11,575		$	13,278		$	12,150

See accompanying notes to consolidated financial statements.

71

ENTERPRISE BANCORP, INC.

Consolidated Statements of Changes in Stockholders’ Equity

Years Ended December 31, 2013, 2012 and 2011

	Common Stock			Additional Paid-in Capital		Retained Earnings			Accumulated Other Comprehensive Income/(Loss)			Total Stockholders’ Equity
(Dollars in thousands, except share data)	Shares	Amount
Balance at December 31, 2010	9,290,465	$	93	$	42,590	$	72,000		$	1,990		$	116,673
Net Income						10,944						10,944
Other comprehensive income (loss), net									1,206			1,206
Tax benefit from exercise of stock options				4								4
Common stock dividend paid ($0.42 per share)						(3,945		)				(3,945		)
Common stock issued under dividend reinvestment plan	84,760	1		1,253								1,254
Stock-based compensation	72,405	1		1,002								1,003
Stock options exercised, net	25,118	—		309								309
Balance at December 31, 2011	9,472,748	$	95	$	45,158	$	78,999		$	3,196		$	127,448
Net Income						12,375						12,375
Other comprehensive income (loss), net									903			903
Tax benefit from exercise of stock options				2								2
Common stock dividend paid ($0.44 per share)						(4,215		)				(4,215		)
Common stock issued under dividend reinvestment plan	80,392	1		1,273								1,274
Stock-based compensation	82,955	1		1,252								1,253
Stock options exercised, net	40,382	—		509								509
Balance at December 31, 2012	9,676,477	$	97	$	48,194	$	87,159		$	4,099		$	139,549
Net Income						13,529						13,529
Other comprehensive income (loss), net									(1,954		)	(1,954		)
Tax benefit from exercise of stock options				25								25
Common stock dividend paid ($0.46 per share)						(4,535		)				(4,535		)
Common stock issued under dividend reinvestment plan	69,633	1		1,238								1,239
Stock-based compensation	90,824	1		1,651								1,652
Stock options exercised, net	155,626	1		1,828								1,829
Balance at December 31, 2013	9,992,560	$	100	$	52,936	$	96,153		$	2,145		$	151,334

See accompanying notes to consolidated financial statements.

72

ENTERPRISE BANCORP, INC

Consolidated Statements of Cash Flows

Years Ended December 31,

(Dollars in thousands)	2013			2012			2011
Cash flows from operating activities:
Net income	$	13,529		$	12,375		$	10,944
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	3,279			2,750			5,197
Depreciation and amortization	5,015			4,485			4,125
Stock-based compensation expense	1,662			1,271			1,035
Mortgage loans originated for sale	(35,284		)	(54,248		)	(35,717		)
Proceeds from mortgage loans sold	43,378			51,741			37,751
Net gains on sales of loans	(792		)	(989		)	(687		)
Net gains on sales of OREO	(121		)	(87		)	—
Net gains on sales of investments	(1,239		)	(236		)	(791		)
Other-than-temporary-impairment of investments	—			—			3
Income on bank-owned life insurance, net	(459		)	(506		)	(548		)
OREO fair value adjustment	23			—			—
Changes in:
Accrued interest receivable	(358		)	(7		)	(289		)
Prepaid expenses and other assets	6,592			(3,207		)	(824		)
Deferred income taxes	(183		)	(625		)	(2,039		)
Accrued expenses and other liabilities	780			1,387			2,456
Accrued interest payable	(38		)	(148		)	(163		)
Net cash provided by operating activities	35,784			13,956			20,453
Cash flows from investing activities:
Proceeds from sales of investment securities available for sale	9,564			3,545			11,344
Net proceeds (purchase) from FHLB capital stock	(64		)	480			—
Proceeds from maturities, calls and pay-downs of investment securities	27,923			37,283			55,746
Purchase of investment securities	(70,663		)	(83,964		)	(63,085		)
Net increase in loans	(165,135		)	(116,458		)	(111,162		)
Additions to premises and equipment, net	(6,580		)	(4,330		)	(5,433		)
Proceeds from OREO sales and payments	652			1,852			600
Purchase of OREO	—			(245		)	—
Net cash used in investing activities	(204,303		)	(161,837		)	(111,990		)
Cash flows from financing activities:
Net increase in deposits	160,965			141,869			89,087
Net increase (decrease) in borrowed funds	9,994			22,046			(11,047		)
Cash dividends paid	(4,535		)	(4,215		)	(3,945		)
Proceeds from issuance of common stock	1,239			1,274			1,254
Proceeds from exercise of stock options	1,829			509			309
Tax benefit from exercise of stock options	25			2			4
Net cash provided by financing activities	169,517			161,485			75,662
Net increase (decrease) in cash and cash equivalents	998			13,604			(15,875		)
Cash and cash equivalents at beginning of year	52,735			39,131			55,006
Cash and cash equivalents at end of year	$	53,733		$	52,735		$	39,131
Supplemental financial data:
Cash paid for: Interest	$	5,369		$	6,643		$	7,542
Cash paid for: Income taxes	7,342			6,611			7,112
Supplemental schedule of non-cash activity:
Purchase of investment securities not yet settled	703			—			—
Transfer from loans to other real estate owned	168			575			1,220
Capital expenditures incurred not yet paid	—			—			710

See accompanying notes to consolidated financial statements.

73

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

(1) Summary of Significant Accounting Policies

(a) Organization of Holding Company and Basis of Presentation

The consolidated financial statements of Enterprise Bancorp, Inc. (the “Company” or “Enterprise”), a Massachusetts corporation, include the accounts of the Company and its wholly owned subsidiary Enterprise Bank and Trust Company (the “Bank”). The Bank is a Massachusetts trust company organized in 1989. Substantially all of the Company’s operations are conducted through the Bank.

The Bank’s subsidiaries include Enterprise Insurance Services, LLC and Enterprise Investment Services, LLC, organized under the laws of the state of Delaware for the purposes of engaging in insurance sales activities and offering non-deposit investment products and services, respectively.  In addition, the Bank has the following subsidiaries that are incorporated in the Commonwealth of Massachusetts and classified as security corporations in accordance with applicable Massachusetts General Laws: Enterprise Security Corporation; Enterprise Security Corporation II; and Enterprise Security Corporation III, which hold various types of qualifying securities.  The security corporations are limited to conducting securities investment activities that the Bank itself would be allowed to conduct under applicable laws.

The Company has 22 full service branches serving the Merrimack Valley and North Central regions of Massachusetts and Southern New Hampshire. Through the Bank and its subsidiaries, the Company offers a range of commercial and consumer loan products, deposit and cash management products, investment advisory and wealth management, trust and insurance services.  The services offered through the Bank and its subsidiaries are managed as one strategic unit and represent the Company’s only reportable operating segment.

Pursuant to the Accounting Standards Codification (“ASC”) Topic 810 “Consolidation of Variable Interest Entities,” issued by the Financial Accounting Standards Board ("FASB"), the Company carries Junior Subordinated Debentures as a liability on its consolidated financial statements, along with the related interest expense. The debentures were issued by a statutory business trust (the "Trust") created by the Company in March 2000 under the laws of the State of Delaware, and the trust preferred securities issued by the Trust, and the related non-interest expense, are excluded from the Company’s consolidated financial statements.

The Federal Deposit Insurance Corporation (“FDIC”) and the Massachusetts Division of Banks (the “Division”) have regulatory authority over the Bank. The Bank is also subject to certain regulatory requirements of the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”) and, with respect to its New Hampshire branch operations, the New Hampshire Banking Department. The business and operations of the Company are subject to the regulatory oversight of the Federal Reserve Board.  The Commissioner also retains supervisory jurisdiction over the Company.

In preparing the financial statements in conformity with U.S. generally accepted accounting principles ("GAAP"), management is required to exercise judgment in determining many of the methodologies, estimates and assumptions to be utilized.  These estimates and assumptions affect the reported values of assets and liabilities at the balance sheet date and income and expenses for the years then ended.  As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates should the assumptions and estimates used change over time due to changes in circumstances.  Changes in those estimates resulting from continuing change in the economic environment and other factors will be reflected in the financial statements and results of operations in future periods.  The three most significant areas in which management applies critical assumptions and estimates are the estimate of the allowance for loan losses, impairment review of investment securities and the impairment review of goodwill.

The accompanying audited consolidated financial statements and notes thereto have been prepared in accordance with GAAP and the instructions for Form 10-K through the rules and interpretive releases of the SEC under federal securities law. In the opinion of management, the accompanying consolidated financial statements reflect all necessary

74

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

adjustments consisting of normal recurring accruals for a fair presentation. All significant intercompany balances and transactions have been eliminated in the accompanying consolidated financial statements.

(b) Cash and cash equivalents

Cash equivalents are defined as highly liquid investments with original maturities of three months or less, that are readily convertible to known amounts of cash and present insignificant risk of changes in value due to changes in interest rates.  The Company's cash and cash equivalents are comprised of cash on hand and cash items due from banks, interest-earning deposits (deposit, money market, and money market mutual fund accounts) and overnight and term federal funds sold ("fed funds"). Balances in cash and cash equivalents will fluctuate resulting primarily from the timing of net deposit flows, borrowing and loan inflows and outflows, investment purchases and maturities, calls and sales proceeds, and the immediate liquidity needs of the Company. 

(c) Investments

Investments that are intended to be held for indefinite periods of time but which may not be held to maturity or on a long-term basis are considered to be “available for sale” and are carried at fair value.  Net unrealized appreciation and depreciation on investments available for sale, net of applicable income taxes, are reflected as a component of accumulated other comprehensive income.  Included as available for sale are securities that are purchased in connection with the Company’s asset-liability risk management strategy and that may be sold in response to changes in interest rates, resultant prepayment risk and other related factors.  In instances where the Company has the positive intent to hold investment securities to maturity, investment securities will be classified as held to maturity and carried at amortized cost.  As of the balance sheet dates, all of the Company’s investment securities were classified as available for sale and carried at fair value.

There are inherent risks associated with the Company’s investment activities which could adversely impact the fair market value and the ultimate collectability of the Company’s investments.  Management regularly reviews the portfolio for securities with unrealized losses that are other than temporarily impaired.  The determination of other-than-temporary impairment (“OTTI”) involves a high degree of judgment and requires management to make significant estimates of current market risks and future trends. Management's assessment, depending on the type of security includes: reviews of market pricing, evaluating the level and duration of the loss on individual securities; ongoing credit quality evaluations; determining if any individual security or mutual fund or other fund exhibits fundamental deterioration; and estimating whether it is unlikely that the individual security or fund will completely recover its unrealized loss within a reasonable period of time, or in the case of fixed income securities prior to maturity.  While management uses available information to measure OTTI at the balance sheet date, future write-downs may be necessary based on extended duration of current unrealized losses, changing market conditions, or circumstances surrounding individual issuers and funds.

Should an investment be deemed have OTTI, the Company is required to write-down the carrying value of the investment. OTTI on equity securities are recognized through a charge to earnings. OTTI on fixed income securities are assessed in order to determine the impairment attributed to underlying credit quality of the issuer and the portion of noncredit impairment. When there are credit losses on a fixed income security that management does not intend to sell and it is more likely than not that the Company will not be required to sell prior to a marketplace recovery or maturity, the portion of the total impairment that is attributable to the credit loss would be recognized in earnings, and the remaining difference between the security’s amortized cost basis and its fair value would be included in other comprehensive income. Once written-down, a security may not be written-up in excess of its new cost basis to reflect future increases in market prices.  Any OTTI charges, depending upon the magnitude of the charges, could have a material adverse effect on the Company’s financial condition and results of operations.

Investment securities’ discounts are accreted and premiums are amortized over the period of estimated principal repayment using methods that approximate the interest method.

Gains or losses on the sale of investment securities are recognized on the trade date on a specific identification basis.

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ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

(d) Restricted Investments

As a member of the Federal Home Loan Bank of Boston (“FHLB”), the Bank is required to purchase certain levels of FHLB stock in association with outstanding advances from the FHLB; this restricted stock investment is carried at cost on the balance sheet, which management believes approximates fair value. FHLB stock represents the only restricted investment held by the Company.

In conjunction with the OTTI review noted above under investments, management also regularly reviews its holdings of FHLB stock for OTTI. Based on management’s ongoing review, the Company has not recorded any OTTI charges on this investment to date. However, if negative events or deterioration in the FHLB financial condition or capital levels occurs, the Company’s investment in FHLB capital stock may become other-than-temporarily impaired to some degree.  If it was determined that a write-down of FHLB stock was required, impairment would be recognized through a charge to earnings.

(e) Loans Held for Sale

Depending on the current interest rate environment, management projections of future interest rates and the overall asset-liability management program of the Company, management may elect to sell those fixed and adjustable rate residential mortgage loans which are eligible for sale in the secondary market. Loans held for sale are carried at the lower of aggregate amortized cost or market value. Market value is based on comparable market prices for loans with similar rates and terms.  Mortgage loans are generally not pooled for sale, but instead sold on an individual basis. Enterprise may retain or sell the servicing when selling the loans.  Loans sold are subject to standard secondary market underwriting and eligibility representations and warranties over the life of the loan, and are subject to an early payment default period covering the first four payments for certain loan sales. When loans are sold, a gain or loss is recognized to the extent that the sales proceeds plus unamortized fees and costs exceed, or are less than, the carrying value of the loans.  Gains and losses are determined using the specific identification method.

(f) Loans

Loans made by the Company to businesses include commercial mortgage loans, construction and land development loans, secured and unsecured commercial loans and lines of credit, and standby letters of credit.  The Company also originates equipment lease financing for businesses. Loans made to individuals include conventional residential mortgage loans, home equity loans and lines, residential construction loans on owner occupied primary and secondary residences, secured and unsecured personal loans and lines of credit.  Most loans granted by the Company are collateralized by real estate or equipment and/or are guaranteed by the principals of the borrower.  The ability and willingness of the single family residential and consumer borrowers to honor their repayment commitments is generally dependent on the level of overall economic activity and real estate values within the borrowers’ geographic areas.  The ability and willingness of commercial real estate, commercial and construction loan borrowers to honor their repayment commitments is generally dependent on the health of the real estate sector in the borrowers’ geographic areas and the general economy, among other factors.

Loans are reported at the principal amount outstanding, net of deferred origination fees and costs.  The aggregate amount of overdrawn deposit accounts are reclassified as loan balances. Loan origination fees received, offset by direct loan origination costs, are deferred and amortized using the straight line method over three to five years for lines of credit and demand notes or over the life of the related loans using the level-yield method for all other types of loans.  When loans are paid off, the unamortized fees and costs are recognized as an adjustment to interest income.

Loans acquired at a net premium are initially measured at fair value as of the acquisition date without carryover of historical allowance for loan losses. Credit discounts representing losses of unpaid loan principal balances expected over the life of the loans are included in the determination of acquisition date fair value. The fair-market valuation of loans acquired at a premium is amortized into interest income on a level-yield basis over the life of the loan. Subsequent to the purchase date, the methods utilized to estimate the required allowance for loan losses are similar to originated loans. 

76

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

(g) Allowance for Loan Losses

The allowance for loan losses is an estimate of credit risk inherent in the loan portfolio as of the specified balance sheet dates.  The allowance for loan losses is established through a provision for loan losses, a direct charge to earnings.  Loan losses are charged against the allowance when management believes that the collectability of the loan principal is unlikely.  Recoveries on loans previously charged-off are credited to the allowance.  The Company maintains the allowance at a level that it deems adequate to absorb all reasonably anticipated losses from specifically known and other credit risks associated with the portfolio.

The Company uses a systematic methodology to measure the amount of estimated loan loss exposure inherent in the portfolio for purposes of establishing a sufficient allowance for loan losses. The methodology uses a two-tiered approach that makes use of specific reserves for loans individually evaluated and deemed impaired and general reserves for larger groups of homogeneous loans.

On a quarterly basis, the Company prepares an estimate of the allowance necessary to cover estimated credit risk inherent in the portfolio as of the specified balance sheet dates.  The adequacy of the allowance for loan losses is reviewed and evaluated on a regular basis by an internal management committee, a sub-committee of the Board of Directors and the full Board itself.

While management uses available information to recognize losses on loans, future additions to the allowance may be necessary.  In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Company’s allowance for loan losses.  Such agencies may require the Company to recognize additions to the allowance based on judgments different from those of management.

See Note 4, "Allowance for Loan Losses," for additional accounting policies related to non-accrual, impaired and troubled debt restructured loans and to the allowance for loan losses.

(h) Other Real Estate Owned

Real estate acquired by the Company through foreclosure proceedings or the acceptance of a deed in lieu of foreclosure is classified as Other Real Estate Owned (“OREO”). When property is acquired, it is generally recorded at the lesser of the loan’s remaining principal balance, net of unamortized deferred fees, or the estimated fair value of the property acquired, less estimated costs to sell. The estimated fair value is based on market appraisals and the Company’s internal analysis. Any loan balance in excess of the estimated realizable fair value on the date of transfer is charged to the allowance for loan losses on that date. All costs incurred thereafter in maintaining the property, as well as subsequent declines in fair value are charged to non-interest expense.

(i) Premises and Equipment

Land is carried at cost.  Premises and equipment are stated at cost less accumulated depreciation and amortization.  Depreciation or amortization is computed on a straight-line basis over the lesser of the estimated useful lives of the asset or the respective lease term (with reasonably assured renewal options) for leasehold improvements generally as follows:

Buildings, renovations and leasehold improvements	10 to 39 years
Computer software and equipment	3 to 5 years
Furniture, fixtures and equipment	3 to 10 years

(j) Bank Owned Life Insurance

The Company has purchased bank owned life insurance (“BOLI”) on certain current and former senior and executive officers.  The cash surrender value carried on the balance sheet at December 31, 2013 and December 31, 2012 amounted to $15.9 million and $15.4 million, respectively. There are no associated surrender charges under the outstanding policies.

77

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

(k) Impairment of Long-Lived Assets Other than Goodwill

The Company reviews long-lived assets, including premises and equipment, for impairment on an ongoing basis or whenever events or changes in business circumstances indicate that the remaining useful life may warrant revision or that the carrying amount of the long-lived asset may not be fully recoverable.  If impairment is determined to exist, any related impairment loss is recognized through a charge to earnings.  Impairment losses on assets disposed of, if any, are based on the estimated proceeds to be received, less cost of disposal.

(l) Goodwill

Goodwill carried on the Company’s consolidated financial statements was $5.7 million at both December 31, 2013 and December 31, 2012. This asset is related to the Company’s acquisition of two branch offices in July 2000.

In accordance with generally accepted accounting principles, the Company does not amortize goodwill and instead, at least annually, evaluates whether the carrying value of goodwill has become impaired. Impairment of the goodwill may occur when the estimated fair value of the Company is less than its recorded book value. A determination that goodwill has become impaired results in an immediate write-down of goodwill to its determined value with a resulting charge to operations.

The annual impairment test begins with a qualitative assessment of whether it is more likely than not that the reporting unit's fair value is less than its carrying amount. The assessment is performed at the operating unit level.  If an entity concludes it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, it need not perform a two-step impairment test. In the case of the Company, the services offered through the Bank and subsidiaries are managed as one strategic unit and represent the Company’s only reportable operating segment.

Management's qualitative assessment takes into consideration macroeconomic conditions, industry and market considerations, cost or margin factors, financial performance and share price. Based on this assessment, the Company determined that it is not "more likely than not" that the Company's fair value is less than its carrying amount and therefore goodwill was not considered to be impaired at December 31, 2013.

If the Company's qualitative assessment concluded that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, it must perform the two-step impairment test to identify potential goodwill impairment and measure the amount of goodwill impairment loss to be recognized, if any. The first step of the goodwill impairment test, used to identify potential impairment, compares the estimated fair value of the reporting unit with its carrying amount, or the book value of the reporting unit, including goodwill.  If the estimated fair value of the reporting unit equals or exceeds its book value, goodwill is considered not impaired, and the second step of the impairment test is unnecessary. 

The second step, if necessary, measures the amount of goodwill impairment loss to be recognized.  The reporting unit must determine fair values for all assets and liabilities, excluding goodwill.  The net of the assigned fair value of assets and liabilities is then compared to the book value of the reporting unit, and any excess book value becomes the implied fair value of goodwill.   If the carrying amount of the goodwill exceeds the newly calculated implied fair value of that goodwill, an impairment loss is recognized in the amount required to write down the goodwill to the implied fair value. 

(m) Investment Assets Under Management

Investment assets under management, consisting of assets managed through Enterprise Investment Advisors and Enterprise Investment Services and the commercial sweep product, totaled $667.3 million and $592.4 million at December 31, 2013 and 2012, respectively.  Fee income is recorded on an accrual basis and recognized over the period in which it is earned. Securities and other property held in a fiduciary or agency capacity are not included in the consolidated balance sheets because they are not assets of the Company.

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ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

(n) Derivatives

The Company recognizes all derivatives as either assets or liabilities on its balance sheet and measures those instruments at fair market value.

Interest rate lock commitments related to the origination of mortgage loans that will be sold are considered derivative instruments.  The commitments to sell loans are also considered derivative instruments. The Company generally does not pool mortgage loans for sale, but instead, sells the loans on an individual basis. To reduce the net interest rate exposure arising from its loan sale activity, the Company enters into the commitment to sell these loans at essentially the same time that the interest rate lock commitment is quoted on the origination of the loan. The Company estimates the fair value of these derivatives based on current secondary mortgage market prices.

At December 31, 2013 and 2012, the estimated fair values of the Company’s derivative instruments were considered to be immaterial. These commitments represent the Company’s only derivative instruments. 

(o) Stock Based Compensation

The Company’s financial statements include stock-based compensation expense for the portion of stock option awards, net of estimated forfeitures, and restricted stock awards for which the requisite service has been rendered during the period. The compensation expense has been estimated based on the estimated grant-date fair value of the awards, or in the case of restricted stock awards, the market value of the common stock on the date of grant.  The Company will recognize the remaining estimated compensation expense for the portion of outstanding awards and compensation expense for any future awards, net of estimated forfeitures, as the requisite service is rendered (i.e., on a straight-line basis over the remaining vesting period of each award). Stock awards that do not require future service (“vested awards”) will be expensed immediately. Stock-based compensation also includes stock compensation for Directors in lieu of cash fees, which is described in more detail in Note 11 "Stock-Based Compensation Plans."

(p) Income Taxes

The Company uses the asset and liability method of accounting for income taxes.  Under this method, deferred tax assets and liabilities are recognized for the future tax attributable to differences between the financial statement carrying amounts and the tax basis of assets and liabilities.  The deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled.  As changes in tax laws or rates are enacted, deferred tax assets and liabilities will be adjusted accordingly through the provision for income taxes.

The Company’s policy is to classify interest resulting from underpayment of income taxes as income tax expense in the first period the interest would begin accruing according to the provisions of the relevant tax law.  The Company classifies penalties resulting from underpayment of income taxes as income tax expense in the period for which the Company claims or expects to claim an uncertain tax position or in the period in which the Company’s judgment changes regarding an uncertain tax position.

The Company did not have any unrecognized tax benefits accrued as income tax liabilities or receivables or as deferred tax items at December 31, 2013 or December 31, 2012.  The Company is subject to U.S. federal and state income tax examinations by taxing authorities for the 2007 through 2013 tax years.

(q) Earnings Per Share

Basic earnings per share are calculated by dividing net income by the weighted average number of common shares outstanding (including participating securities) during the year.  The Company's only participating securities are unvested restricted stock awards that contain non-forfeitable rights to dividends. Diluted earnings per share reflects the effect on weighted average shares outstanding of the number of additional shares outstanding if dilutive stock options were converted into common stock using the treasury stock method.

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ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

(r) Reporting Comprehensive Income

Comprehensive income is defined as all changes to equity except investments by and distributions to stockholders.  Net income is one component of comprehensive income, with other components referred to in the aggregate as other comprehensive income.  The Company’s only other comprehensive income component is the net unrealized holding gains or losses on investments available-for-sale, net of deferred income taxes. Pursuant to Accounting Standards Update (“ASU”) No. 2013-02, Comprehensive Income (Topic 220): Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income, the Company initially excludes these unrealized holding gains and losses from net income; however, they are later reported as reclassifications out of accumulated other comprehensive income into net income when the securities are sold. When securities are sold, the reclassification of realized gains and losses on available-for-sale securities are included on the Consolidated Statements of Income under the "non-interest income" subheading on the line item "net gains on sales of investment securities" and the related income tax expense is included in the line item "provision for income taxes," both of which are also detailed on the Consolidated Statements of Comprehensive Income under the subheading "reclassification adjustment for net gains included in net income."

(s) Recent Accounting Pronouncements

In January 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-04, Receivables - Troubled Debt Restructurings by Creditors (Subtopic 310-40) - Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The amendments are intended to reduce diversity of practice by clarifying when a creditor should be considered to have received physical possession of residential real estate property collateralizing a residential mortgage loan, such that the loan should be removed, and the real estate property recognized, on the financial statements. Additionally, the amendments require interim and annual disclosure of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in collateralized residential mortgage loans that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendments in this ASU are effective for public business entities for annual periods and interim reporting periods beginning after December 15, 2014. As this ASU primarily offers clarification of existing standards and added disclosures, the adoption of this ASU in the first quarter of 2015 is not expected to have a material impact on the Company's financial statements, or results of operations.

In January 2014, the FASB issued ASU No. 2014-01, Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects. The amendments in this ASU apply to all reporting entities that invest in qualified affordable housing projects through limited liability entities that are flow through entities for tax purposes. The amendments in this ASU eliminate the effective yield election and permit reporting entities to make an accounting policy election to account for such investments using the proportional amortization method if certain conditions are met. The investor must recognize any subsequent impairment loss when it is more likely than not that the carrying amount of the investment will not be realized. Those not electing the proportional amortization method would account for the investment using the equity method or cost method. The decision to apply the proportional amortization method of accounting is an accounting policy decision that must be applied consistently to all qualifying affordable housing project investments rather than a decision to be applied to individual investments. A reporting entity must disclose information that enables users of its financial statements to understand the nature of such investments and the effect of the measurement, and the related tax credits, on its financial position and results of operations. The amendments in this Update are to be applied retrospectively to all periods presented. A reporting entity that uses the effective yield method to account for its investments in qualified affordable housing projects before the date of adoption may continue to apply the effective yield method for those preexisting investments. The amendments in this ASU are effective for public business entities for annual periods and interim reporting periods beginning after December 15, 2014. Early adoption is permitted. The adoption by the Company of this ASU is not expected to have a material impact on the Company's financial statements, or results of operations.

In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU") No. 2013-02, Comprehensive Income (Topic 220): Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income.  The new amendments require an organization to present the effects on the income statement of significant amounts reclassified out of accumulated other comprehensive income or cross-reference to other disclosures currently required under U.S. GAAP for certain items. The new amended standard is effective for annual periods beginning after December 15, 2012, and interim periods within those annual periods.  As this ASU addresses only disclosure requirements, this adoption in the first quarter of 2013 did not have a material impact on the

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ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Company's financial statements. See subsection (r) "Reporting Comprehensive Income" contained within this Note 1, for the disclosure of the effects of amounts reclassified out of accumulated other comprehensive income.

(2) Investments

The amortized cost and fair values of investments at December 31, 2013 and 2012 are summarized as follows:

	2013
(Dollars in thousands)	Amortized cost		Unrealized gains		Unrealized losses		Fair Value
Federal agency obligations(1)	$	55,440	$	146	$	43	$	55,543
Federal agency mortgage backed securities (MBS)(1)	80,997		367		1,714		79,650
Municipal securities	60,675		1,604		325		61,954
Corporate bonds	5,080		29		55		5,054
Total fixed income securities	202,192		2,146		2,137		202,201
Equity investments	9,960		3,228		20		13,168
Total available for sale investments, at fair value	$	212,152	$	5,374	$	2,157	$	215,369

	2012
(Dollars in thousands)	Amortized cost		Unrealized gains		Unrealized losses		Fair Value
Federal Agency Obligations(1)	$	65,247	$	438	$	—	$	65,685
Federal Agency mortgage backed securities (MBS)(1)	48,429		1,287		42		49,674
Municipal securities	53,437		3,103		17		56,523
Corporate bonds	1,905		15		6		1,914
Total fixed income securities	169,018		4,843		65		173,796
Equity investments	9,080		1,622		34		10,668
Total available for sales investments, at fair value	$	178,098	$	6,465	$	99	$	184,464

(1) These categories may include investments issued or guaranteed by government sponsored enterprises such as Fannie Mae (FNMA), Freddie Mac (FHLMC), Ginnie Mae (GNMA), Federal Farm Credit Bank (FFCB), or one of several Federal Home Loan Banks (FHLBs). All agency MBS/CMO investments owned by the Company are backed by residential mortgages.

Included in federal agency MBS were Collateralized Mortgage Obligations (“CMO’s”) with fair values totaling $17.4 million and $23.6 million at December 31, 2013 and 2012.

At December 31, 2013, the equity portfolio consisted primarily of investments in a diversified group of mutual funds, with a small portion of the portfolio (approximately 14%) invested in exchange traded funds and individual common stock of entities in the financial services industry. 

81

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The following tables summarize investments having temporary impairment, due to the fair market values having declined below the amortized costs of the individual investments, and the period that the investments have been impaired at December 31, 2013 and 2012.

	2013
	Less than 12 months				12 months or longer				Total
(Dollars in thousands)	Fair Value		Unrealized Losses		Fair value		Unrealized Losses		Fair Value		Unrealized Losses
Federal Agency Obligations	$	14,026	$	43	$	—	$	—	$	14,026	$	43
Federal agency MBS	$	56,554	$	1,176	$	8,457	$	538	$	65,011	$	1,714
Municipal securities	12,791		292		609		33		13,400		325
Corporate bonds	2,100		39		433		16		2,533		55
Equity investments	749		16		21		4		770		20
Total temporarily impaired investments	$	86,220	$	1,566	$	9,520	$	591	$	95,740	$	2,157

	2012
	Less than 12 months				12 months or longer				Total
(Dollars in thousands)	Fair Value		Unrealized Losses		Fair value		Unrealized Losses		Fair Value		Unrealized Losses
Federal agency MBS	$	9,954	$	42	$	—	$	—	$	9,954	$	42
Municipal securities	1,996		17		—		—		1,996		17
Corporate bonds	1,063		6		—		—		1,063		6
Equity investments	172		2		453		32		625		34
Total temporarily impaired investments	$	13,185	$	67	$	453	$	32	$	13,638	$	99

The net unrealized gain or loss in the Company's fixed income portfolio fluctuates as market interest rates rise and fall.  Due to the fixed rate nature of this portfolio, as market rates fall the value of the portfolio rises, and as market rates rise, the value of the portfolio declines.  The unrealized gains or losses on fixed income investments will also decline as the securities approach maturity or if the issuer is credit impaired. Unrealized gains or losses will be recognized in the statements of income if the securities are sold. However, if an unrealized loss on the fixed income portfolio is deemed to be other than temporary, the credit loss portion is charged to earnings and the noncredit portion is recognized in accumulated other comprehensive income. Net unrealized appreciation and depreciation on investments available for sale, net of applicable income taxes, are reflected as a component of accumulated other comprehensive income.

The net unrealized gain or loss on equity securities will fluctuate based on changes in the market value of the mutual funds and individual securities held in the portfolio.  Unrealized gains or losses will be recognized in the statements of income if the securities are sold. However, if an unrealized loss on an equity security is deemed to be other than temporary prior to a sale, the loss is charged to earnings.

Management regularly reviews the portfolio for securities with unrealized losses that are other-than-temporarily impaired. During the years ended December 31, 2013 and 2012, the Company did not record any fair value impairment charges on its investments. As of December 31, 2013, there were 73 securities in an unrealized loss position in the Company's portfolio (fixed income and equity), with a fair value of $95.7 million, in an unrealized loss position totaling $2.2 million. Management attributes these unrealized losses to increases in current market yields compared to the yields at the time the investments were purchased by the Company. Management does not consider these investments to be other-than-temporarily impaired at December 31, 2013 because the decline in market value is attributable to changes in interest rates and not credit quality for fixed income securities, or a fundamental

82

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

deterioration in the equity funds or issuers, and because the Company does not intend to, and it is more likely than not that it will not be required to, sell those investments prior to a market price recovery or maturity.

In assessing MBS investments, the contractual cash flows of these investments are guaranteed by an agency of the U.S. Government, and the agency that issued these securities is sponsored by the U.S. Government. Accordingly, it is expected that the securities would not be settled at a price less than the par value of the Company's investments. Management's assessment of other fixed income investments within the portfolio includes reviews of market pricing, ongoing credit evaluations, assessment of the investment's materiality, and duration of the unrealized loss position. In addition, the Company utilizes an outside registered investment adviser to manage the corporate and municipal bond portfolios, within prescribed guidelines set by management. For equities and funds, management's assessment includes the severity of the declines, whether it is unlikely that the security or fund will completely recover its unrealized loss within a reasonable time period and if the equity security or fund exhibits fundamental deterioration.

The contractual maturity distribution of total fixed income investments at December 31, 2013 is as follows:

	Within One Year				After One, but within  Five Years				After Five, but within Ten Years				After Ten Years
(Dollars in thousands)	Amount		Yield		Amount		Yield		Amount		Yield		Amount		Yield
At amortized cost:
Federal agency obligations	$	10,030	0.82	%	$	42,443	0.78	%	$	2,967	1.97	%	$	—	—	%
MBS	—		—	%	3,341		2.45	%	7,562		3.02	%	70,094		2.14	%
Municipal securities	3,349		2.04	%	20,023		2.83	%	31,135		4.40	%	6,168		6.42	%
Corporate bonds	—		—	%	3,387		1.54	%	1,693		2.68	%	—		—	%
Total fixed income securities	$	13,379	1.12	%	$	69,194	1.49	%	$	43,357	3.93	%	$	76,262	2.49	%
At fair value:
Total fixed income securities	$	13,439			$	69,864			$	43,996			$	74,902

Scheduled contractual maturities may not reflect the actual maturities of the investments. MBS/CMO securities are shown at their final maturity, however due to prepayments and amortization the actual MBS/CMO cash flows likely will be faster than presented above. Similarly, included in the carrying value of fixed income investments above are callable securities, comprised of municipal securities, federal agency obligations and corporate bonds with amortized cost and fair values of $46.7 million and $47.7 million, respectively, at December 31, 2013. Management considers these factors when evaluating the net interest margin in the Company's asset-liability management program.

From time to time the Company may pledge securities as collateral against deposit account balances of municipal deposit customers, for FHLB borrowing capacity and collateral for borrowing from the Federal Reserve Bank of Boston ("FRB").  The fair value of securities pledged as collateral for these purposes was $202.2 million at December 31, 2013 and $173.6 million at December 31, 2012. 

Sales of investments for the years ended December 31, 2013, 2012, and 2011 are summarized as follows:

(Dollars in thousands)	2013			2012			2011
Amortized cost of investments sold	$	8,325		$	3,309		$	10,553
Gross realized gains on sales	1,243			241			791
Gross realized losses on sales	(4		)	(5		)	—
Total proceeds from sales of investments	$	9,564		$	3,545		$	11,344

83

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Tax exempt interest earned on the municipal securities portfolio was $2.1 million for the year ended December 31, 2013, $1.9 million for the year ended December 31, 2012 and $1.7 million for the year ended December 31, 2011.

See Item (c) “Investments,” contained in Note 1, “Summary of Significant Accounting Policies,” for additional information regarding the accounting for the Company’s investments portfolio. See also Note 14, “Fair Value Measurements,” for additional information regarding the Company’s fair value measurement of investments. 

(3) Loans

The Company specializes in lending to business entities, non-profit organizations, professionals and individuals. The Company’s primary lending focus is on the development of high quality commercial relationships achieved through active business development efforts, long-term relationships with established commercial developers, strong community involvement and focused marketing strategies.  Loans made to businesses include commercial mortgage loans, construction and land development loans, secured and unsecured commercial loans and lines of credit, and standby letters of credit.  The Company also originates equipment lease financing for businesses. Loans made to individuals include conventional residential mortgage loans, home equity loans and lines, residential construction loans on primary and secondary residences, and secured and unsecured personal loans and lines of credit. The Company manages its loan portfolio to avoid concentration by industry and loan size to lessen its credit risk exposure.

See Note 4, "Allowance for Loan Losses," for Information on the Company's credit risk management, non-accrual, impaired and troubled debt restructured loans and the allowance for loan losses.

Major classifications of loans at the periods indicated, are as follows:

(Dollars in thousands)	December 31, 2013			December 31, 2012
Real estate:
Commercial real estate	$	820,299		$	710,265
Commercial construction	132,507			121,367
Residential mortgages	132,721			120,278
Total real estate	1,085,527			951,910
Commercial and industrial	357,056			328,579
Home equity	74,354			75,648
Consumer	8,643			4,911
Gross loans	1,525,580			1,361,048
Deferred loan origination fees, net	(1,524		)	(1,393		)
Total loans	1,524,056			1,359,655
Allowance for loan losses	(26,967		)	(24,254		)
Net loans	$	1,497,089		$	1,335,401

Loan Categories

Commercial loans:

Commercial real estate loans include loans secured by both owner-use and non-owner occupied real estate. These loans are typically secured by a variety of commercial and industrial property types including one-to-four family and multi-family apartment buildings, office or mixed-use facilities, strip shopping centers, or other commercial properties and are generally guaranteed by the principals of the borrower. Commercial real estate loans generally have repayment periods of approximately fifteen to twenty-five years. Variable interest rate loans have a variety of adjustment terms and indices, and are generally fixed for an initial period before periodic rate adjustments begin.

84

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Commercial and industrial loans include seasonal revolving lines of credit, working capital loans, equipment financing (including equipment leases), and term loans. Also included in commercial and industrial loans are loans partially guaranteed by the U. S. Small Business Administration (SBA), and loans under various programs issued in conjunction with the Massachusetts Development Finance Agency and other agencies. Commercial and industrial credits may be unsecured loans and lines to financially strong borrowers, secured in whole or in part by real estate unrelated to the principal purpose of the loan or secured by inventories, equipment, or receivables, and are generally guaranteed by the principals of the borrower. Variable rate loans and lines in this portfolio have interest rates that are periodically adjusted, with loans generally having fixed initial periods.  Commercial and industrial loans have average repayment periods of one to seven years.

Commercial construction loans include the development of residential housing and condominium projects, the development of commercial and industrial use property, and loans for the purchase and improvement of raw land. These loans are secured in whole or in part by the underlying real estate collateral and are generally guaranteed by the principals of the borrowers. Construction lenders work to cultivate long-term relationships with established developers. The Company limits the amount of financing provided to any single developer for the construction of properties built on a speculative basis. Funds for construction projects are disbursed as pre-specified stages of construction are completed. Regular site inspections are performed, either by experienced construction lenders on staff or by independent outside inspection companies, at each construction phase, prior to advancing additional funds. Commercial construction loans generally are periodically adjusted variable rate loans and lines and generally have terms of one to three years.

From time to time, the Company participates with other banks in the financing of certain commercial projects. In some cases, the Company may act as the lead lender, originating and servicing the loans, but participating out a portion of the funding to other banks. In other cases, the Company may participate in loans originated by other institutions. In each case, the participating bank funds a percentage of the loan commitment and takes on the related risk. In each case in which the Company participates in a loan, the rights and obligations of each participating bank are divided proportionately among the participating banks in an amount equal to their share of ownership and with equal priority among all banks. The balances participated out to other institutions are not carried as assets on the Company's financial statements. Loans originated by other banks in which the Company is the participating institution are carried in the loan portfolio at the Company's pro rata share of ownership. The Company performs an independent credit analysis of each commitment and a review of the participating institution prior to participation in the loan. Loans originated by other banks in which the Company is the participating institution amounted to $34.5 million at December 31, 2013 and $28.6 million at December 31, 2012.

Standby letters of credit are conditional commitments issued by the Company to guarantee the financial obligation or performance by a customer to a third party. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. If the letter of credit is drawn upon, a loan is created for the customer, generally a commercial loan, with the same criteria associated with similar commercial loans.

Residential loans:

Enterprise originates conventional mortgage loans on one-to-four family residential properties. These properties may serve as the borrower's primary residence, or be vacation homes or investment properties. Loan to value limits vary, generally from 80% for adjustable rate and multi-family, owner occupied properties, up to 97% for fixed rate loans on single family, owner occupied properties, with mortgage insurance coverage required for loan-to-value ratios greater than 80% based on program parameters. In addition, financing is provided for the construction of owner occupied primary and secondary residences. Residential mortgage loans may have terms of up to 30 years at either fixed or adjustable rates of interest. Fixed and adjustable rate residential mortgage loans are generally originated using secondary market underwriting and documentation standards.

Depending on the current interest rate environment, management projections of future interest rates and the overall asset-liability management program of the Company, management may elect to sell those fixed and adjustable rate residential mortgage loans which are eligible for sale in the secondary market, or hold some or all of this residential loan production for the Company's portfolio. Mortgage loans are generally not pooled for sale, but instead sold on an individual basis. The Company may retain or sell the servicing when selling the loans. Loans sold are subject to standard secondary market underwriting and eligibility representations and warranties over the life of the loan and

85

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

are subject to an early payment default period covering the first four payments for certain loan sales. Loans classified as held for sale are carried as a separate line item on the balance sheet.

Home equity loans and lines of credit:

Home equity term loans are originated for one-to-four family residential properties with maximum original loan to value ratios generally up to 80% of the assessed or appraised value of the property securing the loan. Home equity loan payments consist of monthly principal and interest based on amortization ranging from three to fifteen years. The rates may also be fixed for three to fifteen years.

The Company originates home equity revolving lines of credit for one-to-four family residential properties with maximum original loan to value ratios generally up to 80% of the appraised value of the property securing the loan. Home equity lines generally have interest rates that adjust monthly based on changes in the Prime Rate, although minimum rates may be applicable. Some home equity line rates may be fixed for a period of time and then adjusted monthly thereafter. The payment schedule for home equity lines requires interest only payments for the first ten years of the lines. Generally at the end of ten years, the line may be frozen to future advances, and principal plus interest payments are collected over a fifteen-year amortization schedule or, for eligible borrowers meeting certain requirements, the line availability may be extended for an additional interest only period.

Consumer loans:

Consumer loans primarily consist of secured or unsecured personal loans, loans under energy efficiency financing programs in conjunction with Massachusetts public utilities, and overdraft protection lines on checking accounts extended to individual customers. The aggregate amounts of overdrawn deposit accounts are reclassified as loan balances.

Related Party Loans

Certain of the Company's directors, officers, principal stockholders and their associates are credit customers of the Company in the ordinary course of business. In addition, certain directors are also directors, trustees, officers or stockholders of corporations and non-profit entities or members of partnerships that are customers of the Bank and that enter into loan and other transactions with the Bank in the ordinary course of business. All loans and commitments included in such transactions are on such terms, including interest rates, repayment terms and collateral, as those prevailing at the time for comparable transactions with persons who are not affiliated with the Bank and do not involve more than a normal risk of collectability or present other features unfavorable to the Bank.

As of December 31, 2013 and 2012, the outstanding loan balances to directors, officers, principal stockholders and their associates were $12.1 million and $12.4 million, respectively. All loans to these related parties were current and accruing at those dates. Unadvanced portions of lines of credit available to these individuals were $4.1 million and $2.7 million, as of December 31, 2013 and 2012, respectively. During 2013, new loans and net increases in loan balances or lines of credit under existing commitments of $654 thousand were made and principal paydowns of $988 thousand were received.

Loans Serviced for Others

At December 31, 2013 and 2012, the Company was servicing residential mortgage loans owned by investors amounting to $20.6 million and $22.2 million, respectively. Additionally, the Company was servicing commercial loans participated out to various other institutions amounting to $52.1 million and $53.6 million at December 31, 2013 and 2012, respectively. See the discussion above for further information regarding commercial participations.

86

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Loans Serving as Collateral

Loans designated as qualified collateral and pledged to the FHLB for borrowing capacity for the periods indicated are summarized below:

(Dollars in thousands)	December 31, 2013		December 31, 2012
Commercial real estate	$	320,908	$	216,080
Residential mortgages	97,626		94,552
Home equity	17,548		18,907
Total loans pledged to FHLB	$	436,082	$	329,539

During the third quarter of 2013, as part of its regular liquidity management review, the Company pledged additional commercial real estate loans to the FHLB to provide additional borrowing capacity.

Tax Exempt Interest

Tax exempt interest earned on qualified commercial loans was $1.3 million for the year ended December 31, 2013 and $1.4 million and $1.2 million for the years ended December 31, 2012 and 2011, respectively. Average tax exempt loan balances were $31.1 million and $31.6 million for the years ended December 31, 2013 and 2012, respectively.

(4) Allowance for Loan Losses

While Company manages its loan portfolio to avoid concentration by industry and loan size to lessen its credit risk exposure, inherent in the lending process is the risk of loss due to customer non-payment, or “credit risk.”  The Company endeavors to minimize this risk through sound underwriting practices and the risk management function, however, management recognizes that loan losses will occur and that the amount of these losses will fluctuate depending on the risk characteristics of the loan portfolio and economic conditions.

The allowance for loan losses is an estimate of probable credit risk inherent in the loan portfolio as of the specified balance sheet dates.  The Company maintains the allowance at a level that it deems adequate to absorb all reasonably anticipated losses from specifically known and other credit risks associated with the portfolio.  In making its assessment on the adequacy of the allowance, management considers several quantitative and qualitative factors that could have an effect on the credit quality of the portfolio including, individual assessment of larger and high risk credits, delinquency trends and the level of non-performing loans, impaired and restructured loans, net charge-offs, the growth and composition of the loan portfolio, expansion in geographic market area and the strength of the local and national economy, among other factors.

Credit Quality Indicators

The level of adversely classified loans, delinquent and non-performing assets is largely a function of economic conditions, the overall banking environment, the Company's underwriting and credit risk management standards. The Company’s commercial lending focus may entail significant additional risks compared to long term financing on existing, owner-occupied residential real estate.  The Company endeavors to minimize this risk through sound underwriting practices and the risk management function. The credit risk management function focuses on a wide variety of factors, including, among others, current and expected economic conditions, the real estate market, the financial condition of borrowers, the ability of borrowers to adapt to changing conditions or circumstances affecting their business and the continuity of borrowers’ management teams.  Early detection of credit issues is critical to minimize credit losses. Accordingly, management regularly monitors these factors, among others, through ongoing credit reviews by the Credit Department, an external loan review service, reviews by members of senior management and the Loan Committee of the Board of Directors. This review includes the assessment of internal credit quality indicators such as the risk classification of individual loans, individual review of adversely classified loans, past due and non-accrual loans, impaired and restructured loans, and the level of foreclosure activity, as well as trends in the general levels of these indicators.

87

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

However, despite prudent loan underwriting and ongoing credit risk management, adverse changes within the Company's market area or deterioration in the local, regional or national economic conditions could negatively impact the portfolio's credit risk profile and the Company's asset quality in the future.

The loan portfolio continued to show improving statistics related to migration of adversely classified, non-accrual, impaired loans and the level of Other Real Estate Owned ("OREO") properties held during the year ended December 31, 2013. However, management believes that the general credit profile of the portfolio and individual commercial relationships will continue to be affected by lagging effects that the economic environment has had on the regional and local commercial markets.

Adversely Classified Loans

The Company's loan risk rating system classifies loans depending on risk of loss characteristics. The classifications range from “substantially risk free” for the highest quality loans and loans that are secured by cash collateral, to the more severe adverse classifications of "substandard," "doubtful" and “loss” based on criteria established under banking regulations.

Loans classified as substandard include those loans characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. These loans are inadequately protected by the sound net worth and paying capacity of the borrower; repayment has become increasingly reliant on collateral liquidation or reliance on guaranties; credit weaknesses are well-defined; borrower cash flow is insufficient to meet the required debt service specified in the loan terms and to meet other obligations, such as trade debt and tax payments.

Loans classified as doubtful have all the weaknesses inherent in a substandard rated loan with the added characteristic that the weaknesses make collection or full payment from liquidation, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. The probability of loss is extremely high, but because of certain important and reasonably specific pending factors which may work to the advantage and strengthening of the loan, its classification as an estimated loss is deferred until more exact status may be determined.

Loans classified as loss are generally considered uncollectible at present, although long term recovery of part or all of loan proceeds may be possible. These “loss” loans would require a specific loss reserve or charge-off.

Adversely classified loans may be accruing or in non-accrual status and may be additionally designated as impaired or restructured, or some combination thereof. Loans which are evaluated to be of weaker credit quality are reviewed on a more frequent basis by management.

The following tables present the credit risk profile by internally assigned risk rating category at the periods indicated.

	December 31, 2013
(Dollars in thousands)	Adversely Classified						Not Adversely Classified		Gross Loans
	Substandard		Doubtful		Loss
Commercial real estate	$	13,545	$	1,266	$	—	$	805,488	$	820,299
Commercial and industrial	7,908		51		236		348,861		357,056
Commercial construction	3,358		—		—		129,149		132,507
Residential	1,012		—		—		131,709		132,721
Home Equity	500		—		—		73,854		74,354
Consumer	40		—		—		8,603		8,643
Total gross loans	$	26,363	$	1,317	$	236	$	1,497,664	$	1,525,580

88

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

	December 31, 2012
(Dollars in thousands)	Adversely Classified						Not Adversely Classified		Gross Loans
	Substandard		Doubtful		Loss
Commercial real estate	$	21,999	$	—	$	—	$	688,266	$	710,265
Commercial and industrial	5,993		1,460		48		321,078		328,579
Commercial construction	2,986		—		—		118,381		121,367
Residential	1,254		—		—		119,024		120,278
Home Equity	661		—		—		74,987		75,648
Consumer	34		—		—		4,877		4,911
Total gross loans	$	32,927	$	1,460	$	48	$	1,326,613	$	1,361,048

The decrease in adversely classified loans as of December 31, 2013, as compared to December 2012, was primarily due to paydowns on several commercial relationships, upgraded commercial loans and charge-offs, partially offset by additional credit downgrades during the period.

Past Due and Non-Accrual Loans

Loans on which the accrual of interest has been discontinued are designated as non-accrual loans. Accrual of interest on loans is generally discontinued when a loan becomes contractually past due, with respect to interest or principal, by 90 days, or when reasonable doubt exists as to the full and timely collection of interest or principal. When a loan is placed on non-accrual status, all interest previously accrued but not collected is reversed against current period interest income. Interest accruals are resumed on such loans only when payments are brought current and have remained current for a period of 180 days and when, in the judgment of management, the collectability of both principal and interest is reasonably assured. Interest payments received on loans in a non-accrual status are generally applied to principal on the books of the Company. Additionally, deposit accounts overdrawn for 90 or more days are included in the consumer non-accrual numbers below.

The following table presents an age analysis of past due loans as of December 31, 2013.

(Dollars in thousands)	Loans 30-59 Days Past Due		Loans 60-89 Days Past Due		Non-accrual Loans		Total Past Due Loans		Current Loans		Gross Loans
Commercial real estate	$	1,142	$	1,575	$	10,561	$	13,278	$	807,021	$	820,299
Commercial and industrial	680		908		5,743		7,331		349,725		357,056
Commercial construction	196		—		1,118		1,314		131,193		132,507
Residential	1,110		127		633		1,870		130,851		132,721
Home Equity	211		10		281		502		73,852		74,354
Consumer	106		18		10		134		8,509		8,643
Total gross loans	$	3,445	$	2,638	$	18,346	$	24,429	$	1,501,151	$	1,525,580

89

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The following table presents an age analysis of past due loans as of December 31, 2012.

(Dollars in thousands)	Loans 30-59 Days Past Due		Loans 60-89 Days Past Due		Non-accrual Loans		Total Past Due Loans		Current Loans		Gross Loans
Commercial real estate	$	1,560	$	551	$	12,608	$	14,719	$	695,546	$	710,265
Commercial and industrial	472		55		6,993		7,520		321,059		328,579
Commercial construction	—		—		743		743		120,624		121,367
Residential	42		558		862		1,462		118,816		120,278
Home Equity	73		9		390		472		75,176		75,648
Consumer	42		11		5		58		4,853		4,911
Total gross loans	$	2,189	$	1,184	$	21,601	$	24,974	$	1,336,074	$	1,361,048

At December 31, 2013 and December 31, 2012, all loans 90 or more days past due were carried as non-accruing. Included in the consumer non-accrual numbers in the table above were $3 thousand and $5 thousand of overdraft deposit account balances 90 days or more past due at December 31, 2013 and December 31, 2012, respectively. Non-accrual loans which were not adversely classified amounted to $577 thousand at December 31, 2013 and $1.2 million at December 31, 2012. These balances primarily represented the guaranteed portions of non-performing U.S. Small Business Administration loans. The majority of the non-accrual loan balances were also carried as impaired loans during the periods and are discussed further below.

The ratio of non-accrual loans to total loans amounted to 1.20% and 1.59% at December 31, 2013 and December 31, 2012, respectively.

At December 31, 2013, additional funding commitments for loans on non-accrual status totaled $313 thousand. The Company's obligation to fulfill the additional funding commitments on non-accrual loans is generally contingent on the borrower's compliance with the terms of the credit agreement. If the borrower is not in compliance, additional funding commitments may or may not be made at the Company's discretion.

The reduction in interest income for the years ended December 31, associated with non-accruing loans is summarized as follows:

(Dollars in thousands)	2013		2012		2011
Income in accordance with original loan terms	$	1,171	$	1,490	$	1,545
Less income recognized	680		380		140
Reduction in interest income	$	491	$	1,110	$	1,405

Impaired Loans

Impaired loans are individually significant loans for which management considers it probable that not all amounts due (principal and interest) in accordance with original contractual terms will be collected.  The majority of impaired loans are included within the non-accrual balances; however, not every loan in non-accrual status has been designated as impaired. Impaired loans include loans that have been modified in a troubled debt restructuring (or "TDR", see below). Impaired loans exclude large groups of smaller-balance homogeneous loans, such as residential mortgage loans and consumer loans, which are collectively evaluated for impairment, and loans that are measured at fair value, unless the loan is amended in a TDR.

Management does not set any minimum delay of payments as a factor in reviewing for impaired classification.  Management considers the individual payment status, net worth and earnings potential of the borrower, and the value and cash flow of the collateral as factors to determine if a loan will be paid in accordance with its contractual terms. An

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ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

impaired or TDR loan classification will be considered for upgrade based on the borrower's sustained performance over time and their improving financial condition, the expectation of the borrower's ability to continue to service the loan in accordance the original or modified terms and the collectability of the remaining balance, and in the case of TDR loans, an interest rate at or greater than a market rate for a similar credit at the time of modification.

Impaired loans are individually evaluated for credit loss and a specific reserve is assigned for the amount of the estimated credit loss.  Refer to heading “Allowance for probable loan losses methodology” contained within this Note 4 for further discussion of management’s methodology used to estimate specific reserves for impaired loans.

Total impaired loans amounted to $29.8 million and $37.4 million at December 31, 2013 and December 31, 2012, respectively.  Total accruing impaired loans amounted to $11.9 million and $16.6 million at December 31, 2013 and December 31, 2012, respectively, while non-accrual impaired loans amounted to $17.9 million and $20.8 million as of December 31, 2013 and December 31, 2012, respectively.  The net decrease in the impaired loans since the prior year was primarily within the commercial real estate portfolio of $7.7 million.The decrease in impaired loans as of December 31, 2013, as compared to December 31, 2012, was primarily due to paydowns on several commercial relationships, upgraded commercial loans and charge-offs, partially offset by additional credit downgrades during the period.

The following table sets forth the recorded investment in impaired loans and the related specific allowance allocated as of December 31, 2013.

(Dollars in thousands)	Unpaid contractual principal balance		Total recorded investment in impaired loans		Recorded investment with no allowance		Recorded investment with allowance		Related specific allowance
Commercial real estate	$	17,420	$	15,139	$	12,105	$	3,034	$	507
Commercial and industrial	12,220		10,579		4,902		5,677		2,901
Commercial construction	3,464		3,358		1,426		1,932		830
Residential	673		619		365		254		107
Home Equity	110		108		—		108		31
Consumer	23		23		—		23		23
Total	$	33,910	$	29,826	$	18,798	$	11,028	$	4,399

The following table sets forth the recorded investment in impaired loans and the related specific allowance allocated as of December 31, 2012.

(Dollars in thousands)	Unpaid contractual principal balance		Total recorded investment in impaired loans		Recorded investment with no allowance		Recorded investment with allowance		Related specific allowance
Commercial real estate	$	24,760	$	22,859	$	18,735	$	4,124	$	1,041
Commercial and industrial	12,184		10,831		6,016		4,815		2,186
Commercial construction	3,091		2,932		995		1,937		753
Residential	687		648		390		258		65
Home Equity	110		109		—		109		87
Consumer	14		14		—		14		14
Total	$	40,846	$	37,393	$	26,136	$	11,257	$	4,146

91

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The following table presents the average recorded investment in impaired loans and the related interest recognized during the year ends indicated.

	December 31, 2013				December 31, 2012				December 31, 2011
(Dollars in thousands)	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
Commercial real estate	$	17,673	$	237	$	23,629	$	560	$	27,404	$	698
Commercial and industrial	9,444		92		9,846		116		9,571		61
Commercial construction	3,227		77		2,377		65		3,880		83
Residential	745		9		753		11		621		2
Home Equity	120		—		54		—		—		2
Consumer	18		2		16		1		19		3
Total	$	31,227	$	417	$	36,675	$	753	$	41,495	$	849

Interest income that was not recognized on loans that were deemed impaired as of December 31, 2013, 2012 and 2011, amounted to $445 thousand, $1.1 million, and $847 thousand, respectively. All payments received on impaired loans in non-accrual status are applied to principal. At December 31, 2013, additional funding commitments for impaired loans totaled $457 thousand. The Company's obligation to fulfill the additional funding commitments on impaired loans is generally contingent on the borrower's compliance with the terms of the credit agreement. If the borrower is not in compliance, additional funding commitments may or may not be made at the Company's discretion.

Troubled Debt Restructures

Loans are designated as a TDR when, as part of an agreement to modify the original contractual terms of the loan, the Bank grants the borrower a concession on the terms, that would otherwise not be considered, as a result of financial difficulties of the borrower.  Typically, such concessions consist of a reduction in interest rate to a below market rate, taking into account the credit quality of the note, or a deferment or reduction of payments (principal or interest), which materially alters the Bank’s position or significantly extends the note’s maturity date, such that the present value of cash flows to be received is materially less than those contractually established at the loan’s origination. All loans that are modified are reviewed by the Company to identify if a TDR has occurred.  Restructured loans are included in the impaired loan category and as such, these loans are individually reviewed and evaluated, and a specific reserve is assigned for the amount of the estimated credit loss.

Total TDR loans, included in the impaired loan figures above as of December 31, 2013 and December 31, 2012, were $20.9 million and $26.6 million, respectively.  The change in balances since December 31, 2012 is discussed above. TDR loans on accrual status amounted to $11.4 million and $16.0 million at December 31, 2013 and December 31, 2012, respectively.  TDR loans included in non-performing loans amounted to $9.5 million and $10.5 million at December 31, 2013 and December 31, 2012, respectively.  The Company continues to work with commercial relationships and enters into loan modifications to the extent deemed to be necessary or appropriate to ensure the best mutual outcome given the current economic environment.

At December 31, 2013, additional funding commitments for TDR loans totaled $145 thousand. The Company's obligation to fulfill the additional funding commitments on non-accrual loans is generally contingent on the borrower's compliance with the terms of the credit agreement. If the borrower is not in compliance, additional funding commitments may or may not be made at the Company's discretion.

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ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The following tables present certain information regarding loan modifications classified as troubled debt restructures.

Troubled debt restructure agreements entered into during the year endedDecember 31, 2013.

(Dollars in thousands)	Number of restructurings	Pre-modification outstanding recorded investment		Post-modification outstanding recorded investment
Commercial real estate	2	$	724	$	673
Commercial and industrial	5	1,903		1,818
Commercial construction	1	769		769
Residential	—	—		—
Home Equity	—	—		—
Consumer	1	4		4
Total	9	$	3,400	$	3,264

Loans modified as troubled debt restructuring within the previous twelve months for which there was a subsequent payment default during the year endedDecember 31, 2013.

(Dollars in thousands)	Number of TDRs that defaulted	Post-modification outstanding recorded investment
Commercial real estate	—	$	—
Commercial and industrial	1	62
Commercial construction	—	—
Residential	—	—
Home Equity	—	—
Consumer	—	—
Total	1	$	62

There were $38 thousand in charge-offs associated with TDRs modified during 2013. At December 31, 2013, specific reserves allocated to the 2013 TDRs amounted to $142 thousand, as management considers it likely the principal will ultimately be collected. Interest payments received on non-accruing 2013 TDR loans which were applied to principal and not recognized as interest income amounted to $55 thousand.

Troubled debt restructure agreements entered into during the year endedDecember 31, 2012.

(Dollars in thousands)	Number of restructurings	Pre-modification outstanding recorded investment		Post-modification outstanding recorded investment
Commercial real estate	3	$	423	$	388
Commercial and industrial	7	2,980		2,975
Commercial construction	3	802		746
Residential	2	386		383
Home Equity	—	—		—
Consumer	—	—		—
Total	15	$	4,591	$	4,492

93

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Loans modified as troubled debt restructuring within the previous twelve months for which there was a subsequent payment default during the year endedDecember 31, 2012.

(Dollars in thousands)	Number of TDRs that defaulted	Post-modification outstanding recorded investment
Commercial real estate	—	$	—
Commercial and industrial	2	10
Commercial construction	—	—
Residential	1	125
Home Equity	—	—
Consumer	—	—
Total	3	$	135

There were $91 thousand in charge-offs associated with TDRs noted in the table above. At December 31, 2012, specific reserves allocated to the 2012 TDRs amounted to $802 thousand as management considered it likely the principal would ultimately be collected. Interest payments received on non-accruing 2012 TDR loans which were applied to principal and not recognized as interest income amounted to $6 thousand.

Other Real Estate Owned

Real estate acquired by the Company through foreclosure proceedings or the acceptance of a deed in lieu of foreclosure is classified as Other Real Estate Owned (“OREO”). When property is acquired, it is generally recorded at the lesser of the loan’s remaining principal balance, net of any unamortized deferred fees, or the estimated fair value of the property acquired, less estimated costs to sell. Any loan balance in excess of the estimated realizable fair value on the date of transfer is charged to the allowance for loan losses on that date. All costs incurred thereafter in maintaining the property, as well as subsequent declines in fair value are charged to non-interest expense.

The carrying value of OREO at December 31, 2013 was $114 thousand and consisted of 1 property, compared to $500 thousand comprised of 1 property at December 31, 2012. During 2013, 2 properties were added to OREO and 2 properties were sold, 1 of which was held at December 31, 2012.  There were $121 thousand of gains realized on the sale of OREO in 2013 and a write down of $23 thousand was recorded on the remaining property to reflect current expected realizable value. There were $87 thousand in gains on OREO sales in 2012.

Allowance for probable loan losses methodology

On a quarterly basis, management prepares an estimate of the allowance necessary to cover estimated credit losses. The Company maintains the allowance at a level that it deems adequate to absorb all reasonably anticipated losses from specifically known and other credit risks associated with the portfolio. The Company uses a systematic methodology to measure the amount of estimated loan loss exposure inherent in the portfolio for purposes of establishing a sufficient allowance for loan losses. The methodology makes use of specific reserves, for loans individually evaluated and deemed impaired, and general reserves, for larger groups of homogeneous loans, which rely on a combination of qualitative and quantitative factors that could have an impact on the credit quality of the portfolio.

Specific Reserves

When a loan is deemed to be impaired, management estimates the credit loss by comparing the loan's carrying value against either 1) the present value of the expected future cash flows discounted at the loan's effective interest rate; 2) the loan's observable market price; or 3) the expected realizable fair value of the collateral, in the case of collateral dependent loans. A specific allowance is assigned to the impaired loan for the amount of estimated credit loss. Impaired loans are charged off, in whole or in part, when management believes that the recorded investment in the loan is uncollectible.

94

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

General Reserves

In assessing the general reserves for groups of loans with similar risk characteristics, management has segmented the portfolio by I. Non-classified loans, and II. Adversely classified loans. These groups are further subdivided by loan category or risk rating. Allowance allocation factors for groups of loans with similar risk characteristics are based on each group's historical net charge off rate, which is then adjusted for current qualitative or environmental factors that are likely to cause estimated credit losses associated with the existing portfolio to differ from historical loss experience. Management considers the risk factors and assesses the impact of current issues and changes in those factors to the various portfolio categories on an ongoing basis.

I.Non-classified loans by credit type:

Management has established the historic loss factor for non-classified loans by first calculating average net charge-offs over a period of time, divided by the average loan balance over that same period. The time period utilized equates to the average estimated life for each loan category. This average period may be changed from time to time to be reflective of the most appropriate corresponding conditions (market, economic, etc.).

Key qualitative factors that are likely to cause estimated credit losses as of the evaluation date to differ from the group's historical charge-off rates include:

• Several key areas of expansion and growth, including geographic market, changes in lending staff, new or expanded product lines, changes in and portfolio concentrations;

• Changes in the trend and current volume and severity of past due loans, non-accrual loans and the severity of adversely classified and impaired loans compared to historical levels; and

• The current economic environment and conditions (local, state and national) and their general implications to each loan category.

Management weighs the current effect of each of these areas on each particular loan category in determining the allowance allocation factors.

II.Adversely classified loans by credit rating:

Management has established the historic loss factor for classified loans by first calculating total annual net charge-offs divided by the average annual classified loans. An average of the charge-off ratio is then determined over a trailing period of time. The time period utilized equates to the estimated average period that loans might remain in a particular classified category. This average period may be changed from time to time to be reflective of the most appropriate corresponding conditions (market, economic, etc.).

As with the non-classified loans, management has identified several factors as likely to cause estimated credit losses associated with the adversely classified portfolio to differ from historical loss experience based on management's estimate as to the effect of the qualitative or environmental factors on the level of credit losses inherent in each specific classified category. These factors reflect the significant consideration of the risk inherent in these adversely classified categories already contained in the related historic loss factor, and the fact that individually significant loans with probable loss are excluded from the group and assessed separately.

Key qualitative factors that are likely to cause estimated credit losses as of the evaluation date to differ from the adversely classified group's historical charge-off rates include:

• Key areas of expansion consistent with the non-classified loan expansion and growth noted above and the impact of this growth on adversely classified loans.

• Changes in the current volume and severity of past due loans, the volume of non-accrual loans and the volume and severity of adversely classified loans compared to historical levels.

• The current economic environment and conditions (local, state and national) and their general implications to adversely classified loans that are already experiencing difficulties.

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ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Management weighs the current effect of each of these areas on each particular adversely classified category in determining the allowance allocation factors.

Management must exercise significant judgment when evaluating the effect of these factors on the amount of the allowance for loan losses because data may not be reasonably available or directly applicable to determine the precise impact of a factor on the collectability of the loan portfolio as of the evaluation date.

Management has identified above what it deems to be the most significant qualitative factors, however, management recognizes that additional issues may also impact the estimate of credit losses to some degree. From time to time management will re-evaluate the qualitative factors in use in order to consider the impact of other issues which, based on changing circumstances, may become more significant in the future.

Allowance for Loan Loss Activity

The allowance for loan losses is established through a provision for loan losses, a direct charge to earnings. Loan losses are charged against the allowance when management believes that the collectability of the loan principal is unlikely. Recoveries on loans previously charged-off are credited to the allowance.

During the fourth quarter of 2012, the Company purchased a group of residential mortgage loans with a December 31, 2013 carrying value of $14.1 million. These purchased loans were initially booked at fair market value and, in accordance with accounting guidance, do not carry an initial allowance for loan losses. Management will continue to closely monitor this portfolio of non-classified loans for estimated credit loss under general loss allocations taking into account the loss experience as well as the quantitative and qualitative factors identified above.

Changes in the allowance for loan losses for the years ended December 31, are summarized as follows:

(Dollars in thousands)	2013		2012		2011
Balance at beginning of year	$	24,254	$	23,160	$	19,415
Provision charged to operations	3,279		2,750		5,197
Loan recoveries	415		519		294
Less: Loans charged-off	981		2,175		1,746
Balance at end of year	$	26,967	$	24,254	$	23,160

The level of loan growth for the year ended December 31, 2013 was $164.4 million, compared to $87.8 million, excluding $26.4 million of purchased residential loans, during the same period in 2012. For the year ended December 31, 2013, the Company recorded net charge-offs of $566 thousand, the majority of which had reserves specifically allocated in prior periods. Management continues to closely monitor the non-performing assets, charge-offs and necessary allowance levels, including specific reserves. The allowance for loan losses to total loans ratio was 1.77% at December 31, 2013, compared to 1.78% at December 31, 2012. Contributing to the decline in this ratio was the improving credit quality statistics discussed above. Based on the foregoing, as well as management’s judgment as to the existing credit risks inherent in the loan portfolio, Management believes the Company’s allowance for loan losses is deemed adequate to absorb probable losses from specifically known and other credit risks associated with the portfolio as of December 31, 2013.

96

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Changes in the allowance for loan losses by segment for the year ended December 31, 2013, are presented below:

(Dollars in thousands)	Cmml Real Estate		Cmml and Industrial		Cmml Constr			Resid. Mortgage		Home Equity			Cnsmr		Total
Beg. Balance, 12/31/12	$	11,793	$	7,297	$	3,456		$	854	$	728		$	126	$	24,254
Provision	1,491		1,658		(41		)	111		(52		)	112		3,279
Recoveries	96		80		78			128		21			12		415
Less: Charge offs	206		670		—			36		44			25		981
Ending Balance, 12/31/13	$	13,174	$	8,365	$	3,493		$	1,057	$	653		$	225	$	26,967
Ending allowance balance allotted to:
Loans individually evaluated for impairment	$	507	$	2,901	$	830		$	107	$	31		$	23	$	4,399
Loans collectively evaluated for impairment	$	12,667	$	5,464	$	2,663		$	950	$	622		$	202	$	22,568

Changes in the allowance for loan losses by segment for the year ended December 31, 2012, are presented below:

(Dollars in thousands)	Cmml Real Estate		Cmml and Industrial		Cmml Constr		Resid. Mortgage		Home Equity		Cnsmr		Total
Beg. Balance, 12/31/11	$	10,855	$	7,568	$	3,013	$	995	$	615	$	114	$	23,160
Provision	1,185		656		597		34		251		27		2,750
Recoveries	29		461		2		10		2		15		519
Less: Charge offs	276		1,388		156		185		140		30		2,175
Ending Balance, 12/31/12	$	11,793	$	7,297	$	3,456	$	854	$	728	$	126	$	24,254
Ending allowance balance allotted to:
Loans individually evaluated for impairment	$	1,041	$	2,186	$	753	$	65	$	87	$	14	$	4,146
Loans collectively evaluated for impairment	$	10,752	$	5,111	$	2,703	$	789	$	641	$	112	$	20,108

The balances of loans as of December 31, 2013 by segment and evaluation method are summarized as follows:

(Dollars in thousands)	Loans individually evaluated for impairment		Loans collectively evaluated for impairment			Total Loans
Commercial real estate	$	15,139	$	805,160		$	820,299
Commercial and industrial	10,579		346,477			357,056
Commercial construction	3,358		129,149			132,507
Residential	619		132,102			132,721
Home Equity	108		74,246			74,354
Consumer	23		8,620			8,643
Deferred Fees	—		(1,524		)	(1,524		)
Total loans	$	29,826	$	1,494,230		$	1,524,056

See the section titled "Impaired Loans" above, for information regarding the changes in impaired loans balances at December 31, 2013 compared to the prior year.

97

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The balances of loans as of December 31, 2012 by segment and evaluation method are summarized as follows:

(Dollars in thousands)	Loans individually evaluated for impairment		Loans collectively evaluated for impairment			Total Loans
Commercial real estate	$	22,859	$	687,406		$	710,265
Commercial and industrial	10,831		317,748			328,579
Commercial construction	2,932		118,435			121,367
Residential	648		119,630			120,278
Home Equity	109		75,539			75,648
Consumer	14		4,897			4,911
Deferred Fees	—		(1,393		)	(1,393		)
Total loans	$	37,393	$	1,322,262		$	1,359,655

(5) Premises and Equipment

Premises and equipment at December 31 are summarized as follows:

(Dollars in thousands)	2013			2012
Land	$	4,594		$	4,594
Buildings, renovations and leasehold improvements	30,516			28,283
Computer software and equipment	8,088			7,560
Furniture, fixtures and equipment	14,239			12,254
Total premises and equipment, before accumulated depreciation	57,437			52,691
Less accumulated depreciation	(27,546		)	(25,485		)
Total premises and equipment, net of accumulated depreciation	$	29,891		$	27,206

Total depreciation expense related to premises and equipment amounted to $3.9 million, $3.7 million and $3.8 million for the years ended December 31, 2013, 2012 and 2011, respectively.

Total rent expense for the years ended December 31, 2013, 2012 and 2011 amounted to $910 thousand, $858 thousand and $809 thousand, respectively.

The Company's leased facilities are contracted under various non-cancelable operating leases, most of which provide options to extend lease periods and periodic rent adjustments. Several leases provide the Company the right of first refusal should the property be offered for sale or purchase options at specified periods mutually agreeable to the parties. 

98

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

At December 31, 2013, minimum lease payments for these operating leases were as follows:

(Dollars in thousands)
Payable in:
2014	$	1,087
2015	882
2016	911
2017	908
2018	747
Thereafter	3,842
Total minimum lease payments	$	8,377

The Company currently collects rent through leases for a small portion of the overall square-footage within its campus headquarters. Rental income was $150 thousand, $198 thousand and $255 thousand for the years ended December 31, 2013, 2012 and 2011, respectively.

(6) Deposits

Deposits at December 31 are summarized as follows:

(Dollars in thousands)	2013		2012
Non-interest demand deposits	$	435,465	$	386,643
Interest bearing checking	222,837		210,564
Savings	150,215		154,680
Money market	575,825		491,942
Certificates of deposit less than $100,000	95,530		106,904
Certificates of deposit of $100,000 or more	104,553		121,262
Total non-brokered deposits (1)	1,584,425		1,471,995
Brokered deposits (2)	51,567		3,032
Total deposits	$	1,635,992	$	1,475,027

(1) Includes reciprocal money market deposits and CDs received from participating banks in nationwide networks as a result of our customers electing to participate in programs to obtain full FDIC insurance. Essentially, the equivalent of the original deposit comes back to the Company as non-brokered deposits within the appropriate category under total deposits on the balance sheet.

(2) Primarily brokered CDs under $100,000.

The aggregate amount of overdrawn deposits that have been reclassified as loan balances were $1.4 million and $700 thousand at December 31, 2013 and 2012, respectively.

99

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The following table shows the scheduled maturities of certificates of deposit (including brokered deposits with average maturities of 5 years) with balances less than $100,000 and greater than $100,000 at December 31, 2013:

(Dollars in thousands)	Less than $100,000		$100,000 and Greater		Total
Due in less than twelve months	$	75,065	$	83,296	$	158,361
Due in over one year through two years	14,137		12,806		26,943
Due in over two years through three years	5,213		9,085		14,298
Due in over three years through four years	17,954		1,399		19,353
Due in over four years through five years	16,577		—		16,577
Due in over five years	16,118		—		16,118
Total certificates of deposit	$	145,064	$	106,586	$	251,650

Interest expense on certificates of deposit with balances of $100,000 or more amounted to $872 thousand, $1.4 million and $1.9 million, in 2013, 2012 and 2011, respectively.

(7) Borrowed Funds and Debentures

Borrowed funds and debentures outstanding at December 31 are summarized as follows:

	2013				2012				2011
(Dollars in thousands)	Amount		Average Rate		Amount		Average Rate		Amount		Average Rate
Borrowed funds	36,534		0.30	%	26,540		0.44	%	4,494		1.83	%
Junior subordinated debentures	10,825		10.88	%	10,825		10.88	%	10,825		10.88	%
Total borrowed funds and debentures	$	47,359	2.72	%	$	37,365	3.46	%	$	15,319	8.22	%

At December 31, 2013, 2012, and 2011, borrowed funds were comprised of FHLB borrowings.

FHLB borrowings at December 31, 2013 consisted of $34.8 million of overnight borrowings, with a weighted average rate of 0.28%, and term borrowings of $1.7 million, scheduled to mature within the next year, with a weighted average rate of 0.66%. These term borrowings, with original maturities of one to two years, are linked to certain outstanding commercial loans under various community investment programs of the FHLB.

Maximum FHLB and other borrowings outstanding at any month end during 2013, 2012, and 2011 were $57.4 million, $26.5 million, and $4.8 million, respectively.

The Company did not have any repurchase agreements for securities sold during the years ended December 31, 2013 or December 31, 2012. The maximum amount outstanding at any month end during 2011 was $763 thousand.

100

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The following table summarizes the average balance and average cost of borrowed funds for the years ended December 31,

	Year ended December 31,
	2013				2012				2011
(Dollars in thousands)	Average Balance		Average Cost		Average Balance		Average Cost		Average Balance		Average Cost
FHLB advances	$	24,385	0.39	%	$	3,552	1.50	%	$	4,684	1.82	%
Other borrowings	14		0.46	%	89		0.27	%	170		0.25	%
Repurchase agreements	—		—	%	—		—	%	373		0.31	%
Total borrowed funds	$	24,399	0.39	%	$	3,641	1.47	%	$	5,227	1.66	%

The Company’s primary borrowing source is the FHLB, but the Company may choose to borrow from other established business partners.  “Other borrowings” represents overnight advances from the FRB or federal funds purchased from correspondent banks. 

As a member of the FHLB, the Bank has the potential capacity to borrow an amount up to the value of its discounted qualified collateral. Borrowings from the FHLB are secured by certain securities from the Company’s investment portfolio not otherwise pledged and certain residential and commercial real estate loans.  At December 31, 2013, based on qualifying collateral less outstanding advances, the Bank had the capacity to borrow additional funds from the FHLB of up to approximately $300.0 million.   In addition, based on qualifying collateral, the Bank had the capacity to borrow funds from the FRB Discount Window of up to approximately $60.0 million. The Bank also has pre-approved borrowing arrangements with large correspondent banks in order to provide overnight and short-term borrowing capacity.

See Note 2, "Investments," and Note 3, "Loans" above to these consolidated financial statements for further information regarding securities and loans pledged for borrowed funds.

In March 2000, Enterprise (MA) Capital Trust I (the “Trust”), a subsidiary of Enterprise Bancorp, issued $10.5 million of 10.875% trust preferred securities that mature in 2030 and are callable, at a premium if called between 2010 and 2020. To date, the Company has not called any portion of these trust preferred securities.  The proceeds from the sale of the trust preferred securities in March 2000 were used by the Trust, along with the Company’s $325 thousand capital contribution, to acquire $10.8 million in aggregate principal amount of the Company’s 10.875% Junior Subordinated Debt Securities that mature in 2030 and are callable.

(8) Commitments, Contingencies and Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk

The Company is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers.  These financial instruments include commitments to originate loans, standby letters of credit and unadvanced portions of loans and lines of credit.

The instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheets.  The contract amounts of these instruments reflect the extent of involvement the Company has in the particular classes of financial instruments.

The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for loan commitments and standby letters of credit is represented by the contractual amounts of those instruments.  The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments.

101

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Financial instruments with off-balance sheet credit risk at December 31, 2013 and 2012 are as follows:

(Dollars in thousands)	2013		2012
Commitments to originate loans	$	34,182	$	46,408
Commitments to originate residential mortgages loans for sale	2,007		9,325
Commitments to sell residential mortgage loans	3,262		17,882
Standby letters of credit	17,116		13,547
Unadvanced portions of commercial real estate loans	11,640		8,445
Unadvanced portions of commercial loans and lines	261,356		233,274
Unadvanced portions of construction loans (commercial & residential)	131,183		78,428
Unadvanced portions of home equity lines	60,281		57,511
Unadvanced portions of consumer loans	3,056		3,059

Commitments to originate loans are agreements to lend to a customer provided there is no violation of any condition established in the contract.  Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee.  Since some of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.  The Company evaluates each customer’s credit worthiness on a case-by-case basis.  The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the borrower.  Unadvanced portions of consumer loans include credit card loans and overdraft protection lines.

The Company originates residential mortgage loans under agreements to sell such loans, and may retain or sell the servicing when selling the loans.  Loans sold are subject to standard secondary market underwriting and eligibility representations and warranties over the life of the loan, and are subject to an early payment default period covering the first four payments for certain loan sales.

Standby letters of credit are conditional commitments issued by the Company to guarantee the financial obligation or performance by a customer to a third party.  The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers.  If the letter of credit is drawn upon, the Company creates a loan for the customer with the same criteria associated with similar loans.

Unadvanced portions of loans and lines of credit represent credit extended to customers but not yet drawn upon, and are secured or guaranteed under preexisting loan agreements.   Commercial loans and lines may be collateralized by the assets underlying the borrower’s business such as accounts receivable, equipment, inventory and real property or may be unsecured loans and lines to financially strong borrowers and are generally guaranteed by the principals of the borrower.  Commercial real estate loans are generally secured by the underlying real property and rental agreements. Residential mortgage and home equity loans are secured by the real property financed.  Consumer loans such as installment loans are generally secured by the personal property financed, while credit card loans are generally unsecured.  The Company manages its loan portfolio to avoid concentration by industry or loan size to minimize its credit risk exposure.

The Bank is required by the FRB to maintain in reserves certain amounts of vault cash and/or deposits with the FRB. The average daily reserve requirement included in “Cash and Due from Banks” was approximately $11.2 million and $7.8 million, based on the two week computation periods encompassing December 31, 2013, and 2012, respectively.

There are no material pending legal proceedings to which the Company or its subsidiaries are a party or to which any of its property is subject, other than ordinary routine litigation incidental to the business of the Company. Management does not believe resolution of any present litigation will have a material adverse effect on the financial condition or results of operations of the Company.

102

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

(9) Stockholders’ Equity

The Company’s authorized capital is divided into common stock and preferred stock. The Company is authorized to issue 20,000,000 shares of common stock and 1,000,000 shares of preferred stock.

Holders of common stock are entitled to one vote per share, and are entitled to receive dividends if and when declared by the Board of Directors. Dividend and liquidation rights of the common stock may be subject to the rights of any outstanding preferred stock.

The Company has a shareholders rights plan. Under the plan each share of common stock includes a right to purchase under certain circumstances one one-hundredth of a share of the Company’s Series A Junior Participating Preferred Stock, par value $0.01 per share, at a purchase price of $52.00 per one one-hundredth of a preferred share, subject to adjustment, or, in certain circumstances, to receive cash, property, shares of common stock or other securities of the Company.  The rights are not presently exercisable and remain attached to the shares of common stock until the occurrence of certain triggering events that would ordinarily be associated with an unsolicited acquisition or attempted acquisition of 10% or more of the Company’s outstanding shares of common stock.  The rights will expire, unless earlier redeemed, exchanged, or otherwise rescinded by the Company, on January 13, 2018.  The rights have no voting or dividend privileges, and unless and until they become exercisable, have no dilutive effect on the earnings of the Company.

Capital Adequacy Requirements

Capital planning by the Company and the Bank considers current needs and anticipated future growth.  The primary sources of capital have been the original capitalization of the Bank of $15.5 million from the sale of common stock in 1988 and 1989, the issuance of $10.5 million of trust preferred securities in 2000 by the Trust, and net proceeds of $8.8 million from the 2009 Shareholder Subscription Rights Offering and Supplemental Community Offering (the net proceeds from these offerings were contributed to the Bank). Ongoing sources of capital include the retention of earnings less dividends paid since the Bank commenced operations, proceeds from the exercise of employee stock options and proceeds from purchases of shares pursuant to the Company’s dividend reinvestment plan.

Although management believes its current capital is adequate to support ongoing operations, on July 18, 2013, the Company filed a shelf registration of common stock, rights or preferred stock with the Securities and Exchange Commission for the flexibility to raise, over a three year period, up to $40 million in capital to position the Company to take advantage of future growth and market share opportunities.

Applicable regulatory requirements require the Company to maintain minimum total capital equal to 8% of total risk-weighted assets (total capital ratio), minimum Tier 1 capital equal to 4% of total risk-weighted assets (Tier 1 capital ratio) and minimum Tier 1 capital equal to 4% of quarterly average total assets (leverage capital ratio).  Tier 1 capital, in the case of the Company, is composed of common equity and, subject to regulatory limits, trust preferred securities, reduced by certain intangible assets. Total capital includes Tier 1 capital plus Tier 2 capital which, in the case of the Company, is composed of the allowance for loan losses up to 1.25% of risk-weighted assets. Applicable regulatory requirements for the Bank are not materially different from those of the Company.

Failure to meet minimum capital requirements can initiate or result in certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a material adverse effect on the Company’s financial statements.  Under applicable capital adequacy requirements and the regulatory framework for prompt corrective action applicable to the Bank, the Company must meet specific capital guidelines that involve quantitative measures of the Company’s assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices.  The Company’s capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors.

Management believes, as of December 31, 2013, that the Company and the Bank meet all capital adequacy requirements to which they are subject. As of December 31, 2013 and 2012, both the Company and the Bank qualified as “well capitalized” under applicable Federal Reserve Board and FDIC regulations. To be categorized as well capitalized under prompt corrective action framework, the Company and the Bank must maintain minimum Total and Tier 1 capital ratios, and in the case of the Bank, leverage capital ratios, as set forth in the table below.

103

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The Company’s and the Bank’s actual capital amounts and ratios are presented in the following tables.

	Actual				Minimum Capital for Capital Adequacy Purposes				Minimum Capital To Be Well Capitalized*
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2013
The Company
Total Capital (to risk weighted assets)	$	174,145	11.35	%	$	122,752	8.00	%	$	153,440	10.00	%
Tier 1 Capital (to risk weighted assets)	153,425		10.00	%	61,376		4.00	%	92,064		6.00	%
Tier 1 Capital (to average assets)*	153,425		8.48	%	72,375		4.00	%	N/A		N/A
The Bank
Total Capital (to risk weighted assets)	$	173,126	11.28	%	$	122,744	8.00	%	$	153,430	10.00	%
Tier 1 Capital (to risk weighted assets)	152,408		9.93	%	61,372		4.00	%	92,058		6.00	%
Tier 1 Capital (to average assets)	152,408		8.43	%	72,343		4.00	%	90,428		5.00	%

____________________

* For the Bank to qualify as “well capitalized”, it must maintain a leverage capital ratio (Tier 1 capital to average assets) of at least 5%.  This requirement does not apply to the Company.

	Actual				Minimum Capital for Capital Adequacy Purposes				Minimum Capital To Be Well Capitalized*
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2012
The Company
Total Capital (to risk weighted assets)	$	157,716	11.46	%	$	110,079	8.00	%	$	137,599	10.00	%
Tier 1 Capital (to risk weighted assets)	139,714		10.15	%	55,040		4.00	%	82,560		6.00	%
Tier 1 Capital (to average assets)*	139,714		8.64	%	64,716		4.00	%	N/A		N/A
The Bank
Total Capital (to risk weighted assets)	$	156,883	11.40	%	$	110,075	8.00	%	$	137,594	10.00	%
Tier 1 Capital (to risk weighted assets)	138,882		10.09	%	55,037		4.00	%	82,556		6.00	%
Tier 1 Capital (to average assets)	138,882		8.59	%	64,684		4.00	%	80,855		5.00	%

_____________________

* For the Bank to qualify as “well capitalized”, it must maintain a leverage capital ratio (Tier 1 capital to average assets) of at least 5%.  This requirement does not apply to the Company.

In July 2013, the Federal Reserve, the FDIC and OCC, adopted a final rule that implements the Basel III changes to the international regulatory capital framework and revises the U.S. risk-based and leverage capital requirements for U.S. banking organizations. As a result of these regulatory changes, beginning January 1, 2015, with a phase in period that extends to January 2019, the Company will be subject to changes in the capital ratio calculations and the methodology used to calculate such ratios. For further information on the Basel III requirements see the “Supervision and Regulation” contained in Item 1, "Business" in this Form 10-K.

104

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Dividends

Neither the Company nor the Bank may declare or pay dividends on its stock if the effect thereof would cause stockholders’ equity to be reduced below applicable regulatory capital requirements or if such declaration and payment would otherwise violate regulatory requirements.

As the principal asset of the Company, the Bank currently provides the only source of cash for the payment of dividends by the Company.  Under Massachusetts law, trust companies such as the Bank may pay dividends only out of “net profits” and only to the extent that such payments will not impair the Bank’s capital stock.  Any dividend payment that would exceed the total of the Bank’s net profits for the current year plus its retained net profits of the preceding two years would require the Massachusetts Division of Banks' approval. Applicable provisions of the FDIC Improvement Act also prohibits a bank from paying any dividends on its capital stock if the bank is in default on the payment of any assessment to the FDIC or if the payment of dividends would otherwise cause the bank to become undercapitalized.  These restrictions on the ability of the Bank to pay dividends to the Company may restrict the ability of the Company to pay dividends to the holders of its common stock.

The statutory term “net profits” essentially equates with the accounting term “net income” and is defined under the Massachusetts banking statutes to mean the remainder of all earnings from current operations plus actual recoveries on loans and investments and other assets after deducting from such total all current operating expenses, actual losses, accrued dividends on any preferred stock and all federal and state taxes.

The Company maintains a dividend reinvestment plan (the “DRP”).  The DRP enables stockholders, at their discretion, to elect to reinvest dividends paid on their shares of the Company’s common stock by purchasing additional shares of common stock from the Company at a purchase price equal to fair market value. Shareholders utilized the DRP to reinvest $1.2 million, of the $4.5 million total dividends paid by the Company in 2013, into 69,633 shares of the Company’s common stock, and $1.3 million, of the $4.2 million total dividends paid by the Company in 2012, into 80,392 shares of the Company’s common stock.

(10) Employee Benefit Plans

401(k) Defined Contribution Plan and Profit Sharing

The Company has a 401(k) defined contribution employee benefit plan.  The 401(k) plan allows eligible employees to contribute a percentage of their earnings to the plan.  A portion of the employee contribution, as determined by the Compensation Committee of the Board of Directors, is matched by the Company. The Company’s current percentage match has been 60% up to the first 6% contributed by the employee.

All eligible employees, at least 18 years of age and completing 1 hour of service, may participate in the 401(k) plan.  Vesting for the Company’s 401(k) plan matching contribution is based on years of service with participants becoming 20% vested on January 1st of the year following their date of hire and each subsequent January 1st increasing pro-rata to 100% vesting on January1st following five years of service.  Amounts not distributable to an employee following termination of employment are used to offset plan expenses and other contributions.

The Company also has a profit sharing component to the 401(k) plan that vests in the same manner as the 401(k) employer match noted above. Employees are not required to participate in the 401(k) plan to receive a profit sharing contribution.  All eligible employees, at least 18 years of age, completing 1 hour of service and employed on the last day of the year, may receive a profit sharing contribution.  The Company’s contribution is based on company-wide net income targets that are determined at the beginning of the fiscal year and is calculated as a percentage of an employee’s base salary, including overtime and differentials, earned during the plan year up to a maximum salary amount determined by the Compensation Committee of the Board of Directors, which is currently $75 thousand.

From time to time, the Company may also make a discretionary employer contribution to the 401(k) plan.  No amounts were contributed as discretionary contributions in 2013, 2012 or 2011.

105

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The Company’s expense for the 401(k) plan match (excluding the profit sharing component) was $692 thousand, $629 thousand and $591 thousand, respectively, for the years ended December 31, 2013, 2012, and 2011.

The Company’s expense for the profit sharing contribution to the 401(k) plan was $458 thousand, $618 thousand and $399 thousand for the years ended December 31, 2013, 2012 and 2011, respectively.

Supplemental Retirement Plan (SERP)

The Company has salary continuation agreements with two of its active executive officers, and one former executive officer, who currently works on a part-time basis. These salary continuation agreements provide for a predetermined fixed-cash supplemental retirement benefit to be provided for a period of 20 years after the individual reaches a defined “benefit age.”  The Company has not recognized service cost in the current or prior year as each officer had previously attained their individually defined benefit age and was fully vested under the plan.

This non-qualified plan represents a direct liability of the Company, and as such has no specific assets set aside to settle the benefit obligation.  The funded status is the aggregate amount accrued, or the “Accumulated Benefit Obligation,” which is equal to the present value of the benefits to be provided to the employee or any beneficiary.  Because the Company’s benefit obligations provide for predetermined fixed-cash payments, the Company does not have any unrecognized costs to be included as a component of accumulated other comprehensive income.

The amounts charged to expense for this plan are included in the table below. The Company anticipates accruing an additional $142 thousand to the plan for the year ending December 31, 2014.

The following table provides a reconciliation of the changes in the supplemental retirement benefit obligation and the net periodic benefit cost for the years ended December 31:

(Dollars in thousands)	2013			2012			2011
Reconciliation of benefit obligation:
Benefit obligation at beginning of year	$	3,181		$	3,203		$	3,135
Interest cost	157			134			171
Actuarial loss (gain) (1)	(173		)	120			173
Benefits paid	(276		)	(276		)	(276		)
Benefit obligation at end of year	$	2,889		$	3,181		$	3,203
Funded status:
Accrued liability as of December 31	$	(2,889	)	$	(3,181	)	$	(3,203	)
Discount rate used for benefit obligation	5.00		%	4.25		%	4.75		%
Net periodic benefit cost:
Interest cost	157			134			171
Actuarial loss (gain) (1)	(173		)	120			173
Net periodic benefit costs	$	(16	)	$	254		$	344

(1) Management utilizes the Moody’s 20 year AA corporate bond rates to establish the reasonableness of the discount rate used. The Company reviews and periodically updates the discount rate to reflect changes in bond market rates.  The impact of the discount rate change is reflected as the actuarial gain or loss.

106

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Benefits expected to be paid in each of the next five years and in the aggregate five years thereafter: 

(Dollars in thousands)
2014	$	276
2015	276
2016	276
2017	276
2018	276
2019-2023	1,379

Supplemental Life Insurance

For certain senior and executive officers on whom the Bank owns BOLI, the Bank has provided supplement life insurance, through endorsement split-dollar life insurance arrangements, which provides a death benefit to the officer’s designated beneficiaries. See Item (j) "Bank Owned Life Insurance" in Note 1, "Summary of Significant Accounting Policies," for further information regarding BOLI.

The Company has recognized a liability for future benefits associated with the supplemental life insurance plan, which is a non-qualified plan, that provides benefit to employees that extends to postretirement periods.

This plan represents a direct liability of the Company, and as such has no specific assets set aside to settle the benefit obligation.  The funded status is the aggregate amount accrued, or the “Accumulated Postretirement Benefit Obligation,” which is the present value of the future retirement benefits associated with this arrangement.

The following table provides a reconciliation of the changes in the supplemental life insurance plan obligation and the net periodic benefit cost for the years ended December 31:

(Dollars in thousands)	2013			2012			2011
Reconciliation of benefit obligation:
Benefit obligation at beginning of year	$	1,664		$	1,414		$	1,317
Service cost	2			8			15
Interest cost	74			67			72
Actuarial loss (gain) (1)	(164		)	175			10
Benefit obligation at end of year	$	1,576		$	1,664		$	1,414
Funded status:
Accrued liability as of December 31	$	(1,576	)	$	(1,664	)	$	(1,414	)
Discount rate used for benefit obligation	5.00		%	4.25		%	4.75		%
Net periodic benefit cost:
Service cost	$	2		$	8		$	15
Interest cost	74			67			72
Actuarial loss (gain) (1)	(164		)	175			10
Total net period (benefit) cost	$	(88	)	$	250		$	97

 (1) Management utilizes the Moody’s 20 year AA corporate bond rates to establish the reasonableness of the discount rate used. The Company reviews and periodically updates the discount rate to reflect changes in bond market rates.  The impact of the discount rate change is reflected as the actuarial gain or loss. 

107

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The amounts charged to expense for the postretirement cost of insurance for split dollar insurance coverage are included in the table above. The Company anticipates accruing an additional $74 thousand to the plan for the year ending December 31, 2014.

See Note 11, “Stock-Based Compensation Plans” below, for additional information regarding employee benefits offered in the form of stock option and restricted stock awards.

(11) Stock-Based Compensation Plans

The Company currently has two individual stock incentive plans: the 2003 plan as amended in 2009, and the 2009 plan as amended in 2012. The plans permit the Board of Directors to grant, under various terms, both incentive and non-qualified stock options (for the purchase of newly issued shares of common stock), restricted stock, restricted stock units and stock appreciation rights to officers and other employees, directors and consultants. These plans also allow for newly issued shares of common stock to be issued without restrictions, to officers and other employees, directors and consultants.  As of December 31, 2013, 400,301 shares remain available for future grants under the 2009 plan. The 2003 plan is closed to future grants, although several awards previously granted under this plan remain outstanding and may be exercised in the future.

To date, the Company has utilized the plans to issue stock option awards and restricted stock awards to officers, other employees and directors, and stock compensation in lieu of cash fees to directors.  No options or other awards of any kind have been granted to consultants.

Total stock-based compensation expense related to these plans was $1.7 million, $1.3 million and $1.0 million for the years ended 2013, 2012 and 2011 respectively.  The total tax benefit recognized related to the stock-based compensation expense was $660 thousand, $507 thousand and $415 thousand for the years ended 2013, 2012 and 2011, respectively.

Stock Option Awards

Accounting guidance requires that the stock-based compensation expense recognized in earnings be based on the amount of awards ultimately expected to vest; therefore, a forfeiture assumption must be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. The Company has estimated forfeitures based on historical experience for the portion of the grant which had vested and/or grants already vested based on similarities in the type of options and employee group.

Options granted in 2013 will vest 50% in year two and 50% in year four, on the anniversary date of the awards. Options that are outstanding and have been granted under the plans prior to 2013 generally vest ratably over four years. Vested options are only exercisable while the employee remains employed with the Bank and for a limited period thereafter.  Options outstanding at December 31, 2013 consist of options granted in 2007 through 2012 which expire seven years from the grant date, and options granted in 2013 which expire ten years from the grant date.  The 2010 and prior awards provide for accelerated vesting of the entire grant for those who are age 62 on the grant date or upon attaining age 62 during the normal vesting period. For all awards, if a grantee’s employment or other service relationship, such as service as a director, is terminated for any reason, then any stock options granted that have not vested as of the time of such termination generally must be forfeited, unless the Compensation Committee or the Board of Directors, as the case may be, waives such forfeiture requirement.

Under the terms of the plans, stock options may not be granted at less than 100% of the fair market value of the shares on the date of grant and may not have a term of more than ten years.  Any shares of common stock reserved for issuance pursuant to options granted under the 2009 plan that are returned to the Company unexercised shall remain available for issuance under such plan, while the plan is open. For participants owning 10% or more of the Company’s outstanding common stock (of which there are currently none), incentive stock options may not be granted at less than 110% of the fair market value of the shares on the date of grant and may not have an expiration term of more than five years.

108

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The Company utilizes the Black-Scholes option valuation model in order to determine the per share grant date fair value of option grants.  The table below provides a summary of the options granted, fair value, the fair value as a percentage of the market value of the stock at the date of grant and the average assumptions used in the model for the years indicated.

	2013			2012			2011
Options granted	47,684			68,750			83,075
Average assumptions used in the model:
Expected volatility	48		%	50		%	45		%
Expected dividend yield	2.96		%	2.89		%	2.91		%
Expected life in years	7.0			5.5			5.5
Risk-free interest rate	1.35		%	1.37		%	2.17		%
Market price on date of grant	$	16.61		$	16.25		$	14.88
Per share weighted average fair value	$	6.66		$	6.33		$	5.28
Fair Value as a percentage of market value at grant date	40		%	39		%	35		%

The expected volatility is the anticipated variability in the Company’s share price over the expected life of the option base on the Company's historical volatility. 

The expected dividend yield is the Company’s projected dividends based on historical annualized dividend yield to coincide with volatility divided by its share price at the date of grant.

The expected life represents the period of time that the option is expected to be outstanding.  The Company utilized the simplified method and under this method, the expected term equals the vesting term plus the contractual term divided by 2.

The risk-free interest rate is based on the U.S. Treasury rate in effect at the time of grant for a period equivalent to the expected life of the option.

Stock option transactions during the year ended December 31, 2013 are summarized as follows:

(Dollars in thousands, except per share data)	Options	Weighted Average Exercise Price Per Share		Weighted Average Remaining Life in Years	Aggregate Intrinsic Value
Outstanding December 31, 2012	649,211	$	14.28	2.6	$	1,462
Granted	47,684	16.61
Exercised	273,529	14.63
Forfeited/Expired	6,014	13.31
Outstanding December 31, 2013	417,352	$	14.32	3.5	$	2,857
Vested and Exercisable at December 31, 2013	265,252	$	13.59	2.1	$	2,012

The aggregate intrinsic value in the table above represents the difference between the closing price of the Company’s common stock on December 31, 2013 and the exercise price, multiplied by the number of options.  If the closing price was less than the exercise price of the option, no intrinsic value was assigned to the grant.  At December 31, 2013, vested and exercisable options totaling 265,252 were in-the money.  The intrinsic value of options vested and exercisable represents the total pretax intrinsic value that would have been received by the option holders had all in-the-money vested option holders exercised their options on December 31, 2013. The intrinsic value will change based on the fair market value of the Company’s stock.

109

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Cash received from option exercises was $1.8 million, $509 thousand and $309 thousand in 2013, 2012 and 2011, respectively.  Total intrinsic value of options exercised was $1.1 million, $151 thousand and $101 thousand in 2013, 2012 and 2011, respectively.

The actual tax benefit arising during the period for the tax deduction from the disqualifying disposition of shares acquired upon exercise was $25 thousand, $2 thousand and $4 thousand in 2013, 2012, and 2011, respectively.

Compensation expense recognized in association with the stock option awards amounted to $422 thousand, $255 thousand and $230 thousand for the years ended 2013, 2012 and 2011, respectively.  The total tax benefit recognized related to the stock option expense was $165 thousand, $101 thousand, and $91 thousand for the years ended 2013, 2012, and 2011, respectively.

As of December 31, 2013, there was $620 thousand of unrecognized stock-based compensation expense, net of estimated forfeitures, related to non-vested stock options. That cost is expected to be recognized over the remaining weighted average vesting period of 2.3 years.

Restricted Stock Awards

Stock-based compensation expense recognized in association with the restricted stock award amounted to $1.0 million for the year ended December 31, 2013, $832 thousand for the year ended December 31, 2012, and $639 thousand for the year ended December 31, 2011.  The total tax benefit recognized related to restricted stock compensation expense was $418 thousand, $332 thousand, and $257 thousand for the years ended 2013, 2012, and 2011, respectively.

During 2013, the Company granted 80,541 shares of common stock in the form of restricted stock awards. The awards were comprised of 26,660 shares awarded to employees, generally vesting over four years beginning on or about the first anniversary date of the award, 47,735 shares awarded to certain individuals that are performance based awards which vest upon the Company achieving certain predefined performance objectives, and 6,146 shares awarded to directors vesting over two years in equal portions beginning on or about the first anniversary date of the award.  The weighted average grant date fair value of the restricted stock awarded during 2013 was $16.43 per share, which reflects the market value of the common stock on the grant dates.

During 2012, the Company granted 72,376 shares of common stock in the form of restricted stock awards comprised of 63,160 shares awarded to employees, generally vesting over four years, 6,216 shares awarded to directors vesting over two years, and 3,000 shares awarded to an executive officer vesting immediately.  The weighted average grant date fair value of the restricted stock awarded during 2012 was $16.24 per share, which reflects the market value of the common stock on the grant dates. The unvested 2012 awards generally vest, in each case, in equal portions beginning on or about the first anniversary date of the award.

The restricted stock awards allow for the receipt of dividends, and the voting of all shares, whether or not vested, throughout the vesting periods at the same proportional level as common shares outstanding.

If a grantee’s employment or other service relationship, such as service as a director, is terminated for any reason, then any shares of restricted stock that have not vested as of the time of such termination generally must be forfeited, unless the Compensation Committee or the Board of Directors, as the case may be, waives such forfeiture requirement.

110

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The following table sets forth a summary of the activity for the Company’s restricted stock awards.

(Dollars in thousands, except per share data)	Restricted Stock	Weighted Average Grant Price Per Share		Weighted Average Remaining Life In Years	Aggregate Intrinsic Value
Unvested at December 31, 2012	154,186	$	14.58	2.3	$	2,547
Granted	80,541	16.43
Vested/released	62,053	13.65
Forfeited	2,309	15.72
Unvested at December 31, 2013	170,365	$	15.77	2.2	$	3,607

As of December 31, 2013, there remained $1.8 million of unrecognized compensation expense related to the restricted stock awards.  That cost is expected to be recognized over the remaining vesting period of 2.5 years.

Director Stock Compensation in Lieu of Fees

In addition to restricted stock awards discussed above, the members of the Company’s Board of Directors may opt to receive newly issued shares of the Company’s common stock in lieu of cash compensation for attendance at Board and Board Committee meetings.  Directors must make an irrevocable election to receive shares of common stock in lieu of cash fees prior to December 31st of the preceding year.  Directors are granted shares of common stock in lieu of cash fees at a per share price which reflects the market value of the common stock on the first business day of the year.

Total directors' fee expense amounted to $356 thousand, $355 thousand and $368 thousand for the years ended December 31, 2013, 2012 and 2011, respectively. Included in the 2013 expense was stock compensation in lieu of cash fees of $194 thousand, which represented 11,136 shares issued to Directors in January 2014, at a fair market value price of $17.43 per share, which reflected the fair value of the common stock on January 2, 2013. Included in the 2012 expense was stock compensation of $184 thousand, which represented 12,592 shares issued to Directors in January 2013, at a fair market value price of $14.63 per share, which reflected the fair value of the common stock on January 3, 2012. Included in the 2011 expense was stock compensation of $166 thousand, which represented 12,132 shares issued to Directors in January 2012, at a fair market value price of $13.65 per share, which reflected the fair value of the common stock on January 3, 2011.

The total tax benefit recognized related to the expense of Director stock compensation for attendance was $77 thousand, $74 thousand and $67 thousand, for the years ended 2013, 2012 and 2011, respectively.

111

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

(12) Income Taxes

The components of income tax expense for the years ended December 31 were calculated using the asset and liability method as follows:

(Dollars in thousands)	2013			2012			2011
Current tax expense:
Federal	$	5,492		$	5,368		$	5,501
State	1,642			1,605			1,699
Total current tax expense	7,134			6,973			7,200
Deferred tax (benefit)/ expense:
Federal	(100		)	(487		)	(1,602		)
State	(83		)	(138		)	(437		)
Total deferred tax benefit	(183		)	(625		)	(2,039		)
Total income tax expense	$	6,951		$	6,348		$	5,161

The provision for income taxes differs from the amount computed by applying the statutory U.S. federal income tax rate (34%) to income before taxes as follows:

(Dollars in thousands)	2013			2012			2011
Computed income tax expense at statutory rate	$	6,963		$	6,366		$	5,476
State income taxes, net of federal tax benefit	1,029			968			833
Tax exempt income, net of disallowance	(988		)	(1,020		)	(972		)
Bank-owned life insurance income, net	(156		)	(171		)	(182		)
Other	103			205			6
Total income tax expense	$	6,951		$	6,348		$	5,161
Effective income tax rate	33.9		%	33.9		%	32.0		%

112

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

At December 31 the tax effects of each type of income and expense item that give rise to deferred taxes are:

(Dollars in thousands)	2013		2012
Deferred tax asset:
Allowance for loan losses	$	10,959	$	9,841
Depreciation	2,804		2,811
Other-than-temporary impairment on equity securities	238		419
Supplemental employee retirement plans	1,174		1,291
Non-accrual interest	1,514		1,465
Stock-based compensation expense	661		866
Impairment of OREO	—		203
Other	137		114
Total	17,487		17,010
Deferred tax liability:
Goodwill	1,928		1,713
Net unrealized gains on investments securities	1,071		2,267
Deferred origination costs	561		482
Total	3,560		4,462
Net deferred tax asset	$	13,927	$	12,548

Management believes that it is more likely than not that current recoverable income taxes and the expectation of future taxable income, based on the Company’s history of reporting taxable income, will generate sufficient taxable income to realize the deferred tax asset existing at December 31, 2013. However, factors, beyond management’s control, such as the general state of the economy can affect future levels of taxable income and there can be no assurances that sufficient taxable income will be generated to fully realize the deferred tax assets in the future.  In addition, management has the ability to sell any of the equity securities affected by the OTTI charge. A sale of the equity securities would ensure that, for tax purposes, a portion of the losses on sales could be applied against investment gains realized on the portfolio during the past three years, before the ability to carry back losses against these gains expires.

The Company paid total income taxes in 2013, 2012, and 2011 of $7.3 million, $6.6 million, and $7.1 million, respectively. 

The Company did not have any unrecognized tax benefits accrued as income tax liabilities or receivables or as deferred tax items at December 31, 2013 or December 31, 2012.

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and in the states of Massachusetts and New Hampshire. The Company is subject to U.S. federal and state income tax examinations by taxing authorities for the 2007 through 2013 tax years.

The Company invests in qualified affordable housing projects as a limited partner. In 2013, the Company estimated approximately $71 thousand of Federal Low Income Housing tax credits to be recognized. In 2012, the Company recognized approximately $235 thousand in Federal Historic Rehabilitation tax credits and $35 thousand of Federal Low Income Housing tax credits. The Company anticipates that it will receive additional tax credits related to Federal Low Income Housing Tax Credit program in the amount of $607 thousand which are expected to be realized over the next 9 years.

113

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

(13) Earnings per share

The table below presents the increase in average shares outstanding, using the treasury stock method, for the diluted earnings per share calculation for the years ended December 31st:

	2013	2012	2011
Basic weighted average common shares outstanding	9,862,678	9,586,783	9,401,714
Dilutive shares	87,931	73,893	44,011
Diluted weighted average common shares outstanding	9,950,609	9,660,676	9,445,725

At December 31, 2013 and 2012 there were 527 and 119,236 average outstanding stock options, respectively, which were excluded from the calculations of diluted earnings per share, due to the exercise price exceeding the average market price of the Company’s common stock.  These options, which were not dilutive at that date, may potentially dilute earnings per share in the future.

See Item (q) “Earnings Per Share,” contained in Note 1, “Summary of Significant Accounting Policies,” for additional information regarding the earnings per share calculation.

(14) Fair Value Measurements

 The FASB defines the fair value of an asset or liability to be the price which a seller would receive in an orderly transaction between market participants (an exit price) and also establishes a fair value hierarchy segregating fair value measurements using three levels of inputs: (Level 1) quoted market prices in active markets for identical assets or liabilities; (Level 2) significant other observable inputs, including quoted prices for similar items in active markets, quoted prices for identical or similar items in markets that are not active, inputs such as interest rates and yield curves, volatilities, prepayment speeds, credit risks and default rates which provide a reasonable basis for fair value determination or inputs derived principally from observed market data; (Level 3) significant unobservable inputs for situations in which there is little, if any, market activity for the asset or liability.  Unobservable inputs must reflect reasonable assumptions that market participants would use in pricing the asset or liability, which are developed on the basis of the best information available under the circumstances.

The following tables summarize significant assets and liabilities carried at fair value and placement in the fair value hierarchy at the dates specified:

	December 31, 2013		Fair Value Measurements using:
(Dollars in thousands)	Fair Value		(level 1)		(level 2)		(level 3)
Assets measured on a recurring basis:
Fixed income securities	$	202,201	$	—	$	202,201	$	—
Equity securities	13,168		13,168		—		—
FHLB Stock	4,324		—		—		4,324
Assets measured on a non-recurring basis:
Impaired loans (collateral dependent)	6,542		—		—		6,542
Other real estate owned	114		—		—		114

114

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

	December 31, 2012		Fair Value Measurements using:
(Dollars in thousands)	Fair Value		(level 1)		(level 2)		(level 3)
Assets measured on a recurring basis:
Fixed income securities	$	173,796	$	—	$	173,796	$	—
Equity securities	10,668		10,668		—		—
FHLB Stock	4,260		—		—		4,260
Assets measured on a non-recurring basis:
Impaired loans (collateral dependent)	7,110		—		—		7,110
Other real estate owned	500		—		—		500

The Company did not have cause to transfer any assets between the fair value measurement levels during the year ended December 31, 2013 or the year ended December 31, 2012. There were no liabilities measured at fair value on a recurring or non-recurring basis as of December 31, 2013, or December 31, 2012.

All of the Company's fixed income investments and equity securities that are considered “available for sale” are carried at fair value.  The fixed income category above includes federal agency obligations, federal agency MBS, municipal securities, and corporate bonds, as held at those dates. The Company utilizes third-party pricing vendors to provide valuations on its fixed income securities.  Fair values provided by the vendors were generally determined based upon pricing matrices utilizing observable market data inputs for similar or benchmark securities in active markets and/or based on a matrix pricing methodology which employs The Bond Market Association’s standard calculations for cash flow and price/yield analysis, live benchmark bond pricing and terms/condition data available from major pricing sources.  Therefore, management regards the inputs and methods used by third party pricing vendors to be “Level 2 inputs and methods” as defined in the “fair value hierarchy.” The Company periodically obtains a second price from an impartial third party on fixed income securities to assess the reasonableness of prices provided by the primary independent pricing vendor.

The Company’s equity portfolio fair value is measured based on quoted market prices for the shares, therefore these securities are categorized as Level 1 within the fair value hierarchy.

Net unrealized appreciation and depreciation on investments available for sale, net of applicable income taxes, are reflected as a component of accumulated other comprehensive income.

The Bank is required to purchase FHLB stock at par value in association with advances from the FHLB; this stock is classified as a restricted investment and carried at cost which management believes approximates fair value, therefore these securities are categorized as Level 3 measures.  See the discussion regarding FHLB stock in Note 1, “Summary of Significant Accounting Policies,” under Item d above, for further information regarding the Company’s fair value assessment of FHLB capital stock.

Impaired loan balances in the table above represent those collateral dependent impaired commercial loans where management has estimated the credit loss by comparing the loan’s carrying value against the expected realizable fair value of the collateral (appraised value or internal analysis less estimated cost to sell, adjusted as necessary for changes in relevant valuation factors subsequent to the measurement date).  Certain inputs used in these assessments, and possible subsequent adjustments, are not always observable, and therefore, collateral dependent impaired loans are categorized as Level 3 within the fair value hierarchy.  A specific allowance is assigned to the collateral dependent impaired loan for the amount of management’s estimated credit loss.  The specific allowances assigned to the collateral dependent impaired loans at December 31, 2013 amounted to $3.2 million compared to $3.3 million at December 31, 2012.

Real estate acquired by the Company through foreclosure proceedings or the acceptance of a deed in lieu of foreclosure is classified as OREO.  When property is acquired, it is generally recorded at the lesser of the loan’s remaining principal balance, net of unamortized deferred fees, or the estimated fair value of the property acquired, less estimated costs to sell.  The estimated fair value is based on market appraisals and the Company’s internal analysis. 

115

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Certain inputs used in appraisals or the Company's internal analysis, are not always observable, and therefore, OREO may be categorized as Level 3 within the fair value hierarchy.  There were $121 thousand of gains realized on the sale of OREO in 2013 and a $23 thousand loss was recorded on the remaining property to reflect current expected realizable value. There were $87 thousand in gains on OREO sales in 2012.

The following table presents additional quantitative information about assets measured at fair value on a recurring and non-recurring basis for which the Company utilized Level 3 inputs (significant unobservable inputs for situations in which there is little, if any, market activity for the asset or liability) to determine fair value as of December 31, 2013.

(Dollars in thousands)	Fair Value	Valuation Technique	Unobservable Input	Unobservable Input Value or Range
Assets measured on a recurring basis:
FHLB Stock	$4,324	FHLB Stated Par Value	N/A	N/A
Assets measured on a non-recurring basis:
Impaired loans (collateral dependent)	$6,542	Appraisal of collateral	Appraisal adjustments (1)	5% - 50%
Other real estate owned	$114	Appraisal of collateral	Appraisal adjustments (1)	0% - 30%

(1) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses.

Other Guarantees and Commitments

Standby letters of credit are conditional commitments issued by the Company to guarantee the financial obligation or performance by a customer to a third party.  The fair value of these commitments was estimated to be the fees charged to enter into similar agreements, and accordingly these fair value measures are deemed to be FASB Level 2 measurements.  In accordance with the FASB, the estimated fair values of these commitments are carried on the balance sheet as a liability and amortized to income over the life of the letters of credit, which are typically one year.  The estimated fair value of these commitments carried on the balance sheet were deemed immaterial.

Interest rate lock commitments related to the origination of mortgage loans that will be sold are considered derivative instruments.  The commitments to sell loans are also considered derivative instruments. The Company generally does not pool mortgage loans for sale, but instead, sells the loans on an individual basis. To reduce the net interest rate exposure arising from its loan sale activity, the Company enters into the commitment to sell these loans at essentially the same time that the interest rate lock commitment is quoted on the origination of the loan. The Company estimates the fair value of these derivatives based on current secondary mortgage market prices.   These commitments represent the Company’s only derivative instruments and are accounted for in accordance with FASB guidance.  The fair values of the Company’s derivative instruments are deemed to be FASB Level 2 measurements.  At December 31, 2013 and December 31, 2012, the estimated fair value of the Company’s derivative instruments was considered to be immaterial.

Estimated Fair Values of Assets and Liabilities

In addition to disclosures regarding the measurement of assets and liabilities carried at fair value on the balance sheet, the Company is also required to disclose fair value information about financial instruments for which it is practicable to estimate that value, whether or not recognized on the balance sheet.  In cases where quoted fair values are not available, fair values are based upon estimates using various valuation techniques.  Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows.  The following methods and assumptions were used by the Company in estimating fair values of its financial instruments:

Loans held for sale: Loans held for sale are recordedat the lower of aggregate amortized cost or market value. The fair value is based on comparable market prices for loans with similar rates and terms.

116

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Loans: The fair value of loans was determined using discounted cash flow analysis, using interest rates currently being offered by the Company.  The incremental credit risk for non-accrual loans was considered in the determination of the fair value of the loans.  This method of estimating fair value does not incorporate the exit price concept of fair value.

Commitments: The fair values of the unused portion of lines of credit and letters of credit were estimated to be the fees currently charged to enter into similar agreements.  Commitments to originate non-mortgage loans were short-term and were at current market rates and estimated to have no significant change in fair value.

Financial liabilities: The fair values of certificates of deposit and borrowings were estimated using discounted cash flow analysis using rates offered by the Bank, or advance rates offered by the FHLB on December 31, 2013 and December 31, 2012 for similar instruments.  The fair value of junior subordinated debentures was estimated using discounted cash flow analysis using a market rate of interest at December 31, 2013 and December 31, 2012.

Limitations:  The estimates of fair value of financial instruments were based on information available at December 31, 2013 and December 31, 2012 and are not indicative of the fair market value of those instruments as of the date of this report.  These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. The fair value of the Company's time deposit liabilities do not take into consideration the value of the Company's long-term relationships with depositors, which may have significant value.

Because no active market exists for a portion of the Company’s financial instruments, fair value estimates were based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors.  These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision.  Changes in assumptions could significantly affect the estimates.

Fair value estimates were based on existing on- and off-balance sheet financial instruments without an attempt to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments.

In addition, the tax ramifications related to the realization of the unrealized appreciation and depreciation can have a significant effect on fair value estimates and have not been considered in any of the estimates.  Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company.

117

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

The carrying values, estimated fair values and placement in the fair value hierarchy of the Company’s financial instruments⁽¹⁾ for which fair value is only disclosed but not recognized on the balance sheet at the dates indicated are summarized as follows:

	December 31, 2013				Fair value measurement
(Dollars in thousands)	Carrying Amount		Fair Value		Level 1 inputs		Level 2 Inputs		Level 3 Inputs
Financial assets:
Loans held for sale	$	1,255	$	1,255	$	—	$	1,255	$	—
Loans, net	1,497,089		1,516,809		—		—		1,516,809
Financial liabilities:
Certificates of deposit (including brokered)	251,650		250,045		—		250,045		—
Borrowed funds	36,534		36,535		—		36,535		—
Junior subordinated debentures	10,825		11,358		—		—		11,358

	December 31, 2012				Fair value measurement
(Dollars in thousands)	Carrying Amount		Fair Value		Level 1 inputs		Level 2 Inputs		Level 3 Inputs
Financial assets:
Loans held for sale	$	8,557	$	8,603	$	—	$	8,603	$	—
Loans, net	1,335,401		1,355,893		—		—		1,355,893
Financial liabilities:
Certificates of deposit (including brokered)	231,198		231,687		—		231,687		—
Borrowed funds	26,540		26,553		—		26,553		—
Junior subordinated debentures	10,825		12,597		—		—		12,597

(1) Excluded from this table are certain financial instruments that approximated their fair value, as they were short-term in nature or payable on demand.  These include cash and cash equivalents, accrued interest receivable, non-term deposit accounts, and accrued interest payable. The respective carrying values of these instruments would all be considered to be classified within Level 1 of their fair value hierarchy.

118

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

(15)Parent Company Only Financial Statements

Balance Sheets

	December 31,
(Dollars in thousands)	2013		2012
Assets
Cash	$	729	$	542
Investment in subsidiaries	161,580		149,963
Other assets	233		242
Total assets	$	162,542	$	150,747
Liabilities and Stockholders’ Equity
Liabilities
Junior subordinated debentures	$	10,825	$	10,825
Accrued interest payable	370		370
Other liabilities	13		3
Total liabilities	11,208		11,198
Stockholders' equity:
Preferred stock, $0.01 par value per share; 1,000,000 shares authorized; no shares issued	—		—
Common stock $0.01 par value per share; 20,000,000 shares authorized; 9,992,560 issued and outstanding at December 31, 2013 (including 170,365 shares of unvested participating restricted awards) and 9,676,477 shares issued and outstanding at December 31, 2012 (including 154,186 shares of unvested participating restricted awards)	100		97
Additional paid-in capital	52,936		48,194
Retained earnings	96,153		87,159
Accumulated other comprehensive income	2,145		4,099
Total stockholders’ equity	$	151,334	$	139,549
Total liabilities and stockholders’ equity	$	162,542	$	150,747

Statements of Income

	For the years ended December 31,
(Dollars in thousands)	2013			2012			2011
Equity in undistributed net income of subsidiaries	$	13,571		$	10,910		$	9,356
Dividends distributed by subsidiaries	950			2,350			3,000
Total income	14,521			13,260			12,356
Interest expense	1,177			1,177			1,177
Other operating expenses	225			171			225
Total operating expenses	1,402			1,348			1,402
Income before income taxes	13,119			11,912			10,954
Provision for (benefit from) income taxes	(410		)	(463		)	10
Net income	$	13,529		$	12,375		$	10,944

119

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

Parent Company Only Financial Statements

Statements of Cash Flows

	For the years ended December 31,
(Dollars in thousands)	2013			2012			2011
Cash flows from operating activities:
Net income	$	13,529		$	12,375		$	10,944
Adjustments to reconcile net income to net cash
Equity in undistributed net income of subsidiaries	(13,571		)	(10,910		)	(9,356		)
Payment from subsidiary bank for stock compensation expense	1,652			1,253			1,003
Changes in:
Other assets	9			(145		)	5
Other liabilities	10			(2		)	2
Net cash provided by operating activities	1,629			2,571			2,598
Cash flows from financing activities:
Cash dividends paid	(4,535		)	(4,215		)	(3,945		)
Proceeds from issuance of common stock	1,239			1,274			1,254
Proceeds from exercise of stock options	1,829			509			309
Tax benefit from exercise of stock options	25			2			4
Net cash used in financing activities	(1,442		)	(2,430		)	(2,378		)
Net increase in cash and cash equivalents	187			141			220
Cash and cash equivalents, beginning of year	542			401			181
Cash and cash equivalents, end of year	$	729		$	542		$	401

The Parent Company’s Statements of Comprehensive Income and Statements of Changes in Stockholders’ Equity are identical to the Consolidated Statements of Changes in Stockholders’ Equity and therefore are not presented here.

120

ENTERPRISE BANCORP, INC

Notes to the Consolidated Financial Statements

(16) Quarterly Results of Operations (Unaudited)

	2013
(Dollars in thousands, except share data)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Interest and dividend income	$	17,193	$	17,458	$	17,946	$	18,525
Interest expense	1,374		1,331		1,313		1,313
Net interest income	15,819		16,127		16,633		17,212
Provision for loan losses	783		534		583		1,379
Net interest income after provision for loan losses	15,036		15,593		16,050		15,833
Non-interest income	3,159		3,085		3,085		3,224
Net gains on sales of investment securities	480		468		83		208
Non-interest expense	13,454		14,461		13,781		14,128
Income before income taxes	5,221		4,685		5,437		5,137
Provision for income taxes	1,788		1,606		1,904		1,653
Net income	$	3,433	$	3,079	$	3,533	$	3,484
Basic earnings per share	$	0.35	$	0.31	$	0.36	$	0.35
Diluted earnings per share	$	0.35	$	0.31	$	0.35	$	0.35

	2012
(Dollars in thousands, except share data)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Interest and dividend income	$	16,776	$	17,087	$	17,182	$	17,360
Interest expense	1,847		1,676		1,534		1,438
Net interest income	14,929		15,411		15,648		15,922
Provision for loan losses	300		1,050		800		600
Net interest income after provision for loan losses	14,629		14,361		14,848		15,322
Non-interest income	2,927		2,840		2,947		3,225
Net gains on sales of investment securities	47		112		38		39
Non-interest expense	12,818		12,972		13,010		13,812
Income before income taxes	4,785		4,341		4,823		4,774
Provision for income taxes	1,612		1,436		1,760		1,540
Net income	$	3,173	$	2,905	$	3,063	$	3,234
Basic earnings per share	$	0.33	$	0.30	$	0.32	$	0.34
Diluted earnings per share	$	0.33	$	0.30	$	0.32	$	0.33

121

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors

Enterprise Bancorp, Inc.:

We have audited the accompanying consolidated balance sheets of Enterprise Bancorp, Inc. and subsidiaries (the Company) as of December 31, 2013 and 2012 and the related consolidated statements of income, comprehensive income, changes in stockholders’ equity and cash flows for each of the years in the three-year period ended December 31, 2013. These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Enterprise Bancorp, Inc. and subsidiaries as of December 31, 2013 and 2012 and the results of their operations and their cash flows for each of the years in the three-year period ended December 31, 2013, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company’s internal control over financial reporting as of December 31, 2013, based on criteria established in Internal Control - Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) and our report dated March 14, 2014, expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

Boston, Massachusetts

March 14, 2014

122

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

ON INTERNAL CONTROL OVER FINANCIAL REPORTING

The Board of Directors

Enterprise Bancorp, Inc.:

We have audited Enterprise Bancorp, Inc. and subsidiaries’ (the Company) internal control over financial reporting as of December 31, 2013, based on criteria established in Internal Control - Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Enterprise Bancorp, Inc.’s management is responsiblefor maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in theaccompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control overfinancial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we planand perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our auditincluded obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the designand operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in thecircumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and thepreparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financialreporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactionsand dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financialstatements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordancewith authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorizedacquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation ofeffectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions or that the degree of compliance withthe policies or procedures may deteriorate.

In our opinion, Enterprise Bancorp, Inc. and subsidiaries maintained, in all material respects, effective internal control over financial reporting as of December 31, 2013, based oncriteria established in Internal Control - Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets ofEnterprise Bancorp, Inc. and subsidiaries as of December 31, 2013 and 2012 and the related consolidated statements of income, comprehensive income, changes in stockholders’ equity and cash flowsfor each of the years in the three-year period ended December 31, 2013, and our report dated March 14, 2014, expressed an unqualified opinion on thoseconsolidated financial statements

Boston, Massachusetts

March 14, 2014

123

Item 9. Changes In and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

The Company maintains a set of disclosure controls and procedures designed to ensure that the information required to be disclosed in reports that it files or submits to the SEC under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.

The Company carried out an evaluation as of the end of the period covered by this report, under the supervision and with the participation of the Company’s management, including its principal executive officer and principal financial officer, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures pursuant to Exchange Act Rule 13a-15(b).  Based upon that evaluation, the Company’s principal executive officer and principal financial officer concluded that the Company’s disclosure controls and procedures are effective.

Management’s Report on Internal Control Over Financial Reporting

The Company’s management is responsible for establishing and maintaining adequate internal control over financial reporting.  The Company’s internal control system was designed to provide reasonable assurance to the Company’s management and Board of Directors regarding the preparation and fair presentation of published financial statements.  All internal control systems, however, no matter how well designed, have inherent limitations and may not prevent or detect misstatement.  Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.  Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation.

The Company’s management assessed the effectiveness of the Company’s internal control over financial reporting as of December 31, 2013.  In making this assessment, it used the 1992 criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission in “Internal Control-Integrated Framework.”  Based on management’s assessment, the Company believes that, as of December 31, 2013, the Company’s internal control over financial reporting is effective based on these criteria.

The Company’s independent registered public accounting firm has issued a report on the effectiveness of the Company’s internal control over financial reporting, which appears on page 123 of this report.

Changes in Internal Control Over Financial Reporting

There has been no change in the Company’s internal control over financial reporting that has occurred during the Company’s most recent fiscal quarter (i.e., the three months ended December 31, 2013) that has materially affected, or is reasonably likely to materially affect, such internal controls.

Item 9B. Other Information

None.

Part III

Items 10, 11, 12, 13 and 14.

The information required in Items 10, 11, 12, 13 and 14 of this part is incorporated herein by reference to the Company’s definitive proxy statement for its annual meeting of stockholders to be held May 6, 2014, which it expects to file with the SEC within 120 days of the end of the fiscal year covered by this report. For additional information on availability of the Company’s corporate governance guidelines, see the section titled “Company Website, contained in Item 1, Business, to this Form 10K.

124

Part IV

Item 15. Exhibits, Financial Statement Schedules

(a) The following documents are filed as part of this annual report:

(1) Financial Statements

See Index to Consolidated Financial Statements contained in Item 8 above.

(2) Financial Statement Schedules

None (information included in financial statements)

(3) Exhibits

Exhibit No. and Description

3.1 Amended and Restated Articles of Organization of the Company, incorporated by reference to the Company’s Form 8-K filed June 10 2013.

3.2 Amended and Restated Bylaws of the Company, as amended as of January 15, 2013, incorporated by reference to Exhibit 3.2 to the Company’s Form 8-K filed on January 22, 2013.

4.1 Renewal Rights Agreement dated as of December 11, 2007 by and between the Company and Computershare Trust Company, N.A., as Rights Agent, including Terms of Series A Junior Participating Preferred Stock, Summary of Rights to Purchase Shares of Series A Junior Participating Preferred Stock, and Form of Rights Certificate attached as Exhibits A, B and C thereto, incorporated by reference to Exhibit 4.5 to the Company’s Form 8-K filed on December 13, 2007.

10.1 Enterprise Bancorp, Inc. Amended and Restated 1998 Stock Incentive Plan, incorporated by reference to Exhibit 4.1 to the Company’s Registration Statement on Form S-8 (Reg. No. 333-60036), filed May 2, 2001.

10.2 Enterprise Bancorp, Inc. 2003 Stock Incentive Plan, as amended May 2, 2006, incorporated by reference to Exhibit 4 to the Company’s Registration Statement on Form S-8 (Reg. No. 333-133792) filed May 4, 2006.

10.3 Enterprise Bancorp, Inc. Employee Stock Purchase Plan, incorporated by reference to Exhibit 4 to the Company’s Registration Statement on Form S-8 (Reg. No. 333-136700), filed on August 17, 2006.

10.4.1 Specimen Incentive Stock Option Agreement for executive officers under Enterprise Bancorp, Inc. Amended and Restated 1998 Stock Incentive Plan and 2003 Stock Incentive Plan, as amended, incorporated by reference to Exhibit 10.38.1 to the Company’s Form 10-K for the year ended December 31, 2004 (applicable to grants prior to January 1, 2007).

10.4.2 Specimen Nonqualified Stock Option Agreement for executive officers under Enterprise Bancorp, Inc. Amended and Restated 1998 Stock Incentive Plan and 2003 Stock Incentive Plan, as amended, incorporated by reference to Exhibit 10.38.2 to the Company’s Form 10-K for the year ended December 31, 2004 (applicable to grants prior to January 1, 2007).

10.4.3 Specimen Incentive Stock Option Agreement under Enterprise Bancorp, Inc. Amended and Restated 1998 Stock Incentive Plan and 2003 Stock Incentive Plan, as amended, incorporated by reference to Exhibit 10.49.1 to the Company’s Form 10-Q for the quarter ended March 31, 2007 (applicable to grants after December 31, 2006).

125

10.4.4 Specimen Nonqualified Stock Option Agreement under Enterprise Bancorp, Inc. Amended and Restated 1998 Stock Incentive Plan and 2003 Stock Incentive Plan, as amended, incorporated by reference to Exhibit 10.49.2 to the Company’s Form 10-Q for the quarter ended March 31, 2007 (applicable to grants after December 31, 2006 and prior to March 17, 2009).

10.4.5 Specimen Incentive Stock Option Agreement  (includes Company right of repayment) under Enterprise Bancorp, Inc. Amended and Restated 1998 Stock Incentive Plan and 2003 Stock Incentive Plan, as amended, incorporated by reference to Exhibit 10.49.3 to the Company’s Form 10-Q for the quarter ended March 31, 2007 (applicable to grants after December 31, 2006).

10.4.6 Specimen Nonqualified Stock Option Agreement (includes Company right of repayment) under Enterprise Bancorp, Inc. Amended and Restated 1998 Stock Incentive Plan and 2003 Stock Incentive Plan, as amended, incorporated by reference to Exhibit 10.49.4 to the Company’s Form 10-Q for the quarter ended March 31, 2007 (applicable to grants after December 31, 2006 and prior to March 17, 2009).

10.5 Enterprise Bancorp, Inc. Amended and Restated Dividend Reinvestment Plan, incorporated by reference to the section of the Company’s Registration Statement on Form S-3 (Reg. No. 333-17394), filed on May 5, 2011, appearing under the heading “The Plan.”

10.6.1 Employment Agreement dated as of December 19, 2008 by and among the Company, the Bank and George L. Duncan, incorporated by reference to Exhibit 10.2.1 to the Company’s Form 8-K filed on December 24, 2008.

10.6.2 Employment Agreement dated as of December 19, 2008 by and among the Company, the Bank and Richard W. Main, incorporated by reference to Exhibit 10.2.2 to the Company’s Form 8-K filed on December 24, 2008.

10.6.3 Employment Agreement dated as of December 19, 2008 by and among the Company, the Bank and John P. Clancy, Jr., incorporated by reference to Exhibit 10.2.3 to the Company’s Form 8-K filed on December 24, 2008.

10.7.1 Change in Control/Noncompetition Agreement dated as of December 18, 2008 by and among the Company, the Bank and Stephen J. Irish, incorporated by reference to Exhibit 10.12 to the Company’s Form 10-K for the year ended December 31, 2008.

10.7.2 Change in Control/Noncompetition Agreement dated as of December 21, 2010 by and among the Company, the Bank and James A. Marcotte, incorporated by reference to Exhibit 10.1 to the Company’s Form 8-K filed on December 22, 2010.

10.8.1 Salary Continuation Agreement dated as of July 15, 2005 by and between the Bank and George L. Duncan, incorporated by reference to Exhibit 10.39.1 to the Company’s 8-K filed on July 20, 2005, as amended by Form 8-K/A filed on February 23, 2006.

10.8.2 Salary Continuation Agreement dated as of July 15, 2005 by and between the Bank and Richard W. Main, incorporated by reference to Exhibit 10.39.2 to the Company’s 8-K filed on July 20, 2005, as amended by Form 8-K/A filed on February 23, 2006.

10.9.1 First Amendment dated as of December 19, 2008 to Salary Continuation Agreement dated as of July 15, 2005 by and between the Bank and George L. Duncan, incorporated by reference to Exhibit 10.1.1 to the Company’s Form 8-K filed on December 24, 2008.

10.9.2 First Amendment dated as of December 19, 2008 to Salary Continuation Agreement dated as of July 15, 2005 by and between the Bank and Richard W. Main, incorporated by reference to Exhibit 10.1.2 to the Company’s Form 8-K filed on December 24, 2008.

126

10.10 Supplemental Life Insurance Agreement dated as of July 15, 2005 by and between the Bank and George L. Duncan, incorporated by reference to Exhibit 10.40.1 to the Company’s 8-K filed on July 20, 2005.

10.11 Supplemental Life Insurance Agreement dated as of July 15, 2005 by and between the Bank and Richard W. Main, incorporated by reference to Exhibit 10.40.2 to the Company’s 8-K filed on July 20, 2005.

10.12 Enterprise Bank and Trust Company Supplemental Life Insurance Plan adopted April 5, 2006, incorporated by reference to Exhibit 10.52 to the Company’s Form 10-Q for the quarter ended September 30, 2006.

10.13 Description of directors’ compensation, incorporated by reference to Exhibit 10.1 to the Company’s Form 10-Q for the quarter ended March 31, 2010.

10.14.1 Form of Restricted Stock Agreement dated as of March 17, 2009 under Enterprise Bancorp, Inc. 2003 Stock Incentive Plan, as amended, by and between the Company and each of George L. Duncan and James A. Marcotte, incorporated by reference to Exhibit 10.1 to the Company’s Form 8-K filed on March 26, 2009.

10.14.2 Form of Nonqualified Stock Option Agreement dated as of March 17, 2009 under Enterprise Bancorp, Inc. 2003 Stock Incentive Plan, as amended, by and between the Company and James A. Marcotte, incorporated by reference to Exhibit 10.2 to the Company’s Form 8-K filed on March 26, 2009.

10.14.3 Form of Restricted Stock Agreement dated as of March 19, 2013 under Enterprise Bancorp, Inc. 2009 Stock Incentive Plan, as amended, by and between the Company and each of George L. Duncan, John P. Clancy, Richard W. Main, James A. Marcotte, and Stephen J. Irish incorporated by reference to Exhibit 10.1 to the Company’s Form 8-K filed on March 25, 2013.

10.14.4 Form of Nonqualified Stock Option Agreement dated as of March 19, 2013 under Enterprise Bancorp, Inc. 2009 Stock Incentive Plan, as amended, by and between the Company and each of George L. Duncan, John P. Clancy, Richard W. Main, James A. Marcotte, and Stephen J. Irish incorporated by reference to Exhibit 10.2 to the Company’s Form 8-K filed on March 25, 2013.

10.15 Enterprise Bancorp, Inc. 2009 Stock Incentive Plan, as amended on May 1, 2012, incorporated by reference to Exhibit 10.1 to the Company’s Registration Statement on Form S-8 (Reg. No. 333-184089) filed September 25, 2012.

10.16.1 Specimen Incentive Stock Option Agreement under Enterprise Bancorp, Inc. 2009 Stock Incentive Plan, incorporated by reference to Exhibit 10.2 to the Company’s Form 8-K filed on May 6, 2009.

10.16.2 Specimen Nonqualified Stock Option Agreement under Enterprise Bancorp, Inc. 2009 Stock Incentive Plan, incorporated by reference to Exhibit 10.3 to the Company’s Form 8-K filed on May 6, 2009.

10.16.3 Specimen Restricted Stock Agreement under Enterprise Bancorp, Inc. 2009 Stock Incentive Plan, incorporated by reference to Exhibit 10.4 to the Company’s Form 8-K filed on May 6, 2009.

10.16.4 Specimen Restricted Stock Agreement for grants of restricted stock to officers and directors under Enterprise Bancorp, Inc. 2009 Stock Incentive Plan, incorporated by reference to Exhibit 10.2 to the company’s Form 10-Q for the quarter ended March 31, 2010.

10.17.1 First Amendment dated as of April 1, 2009 to Employment Agreement dated as of December 19, 2008 by and among the Company, the Bank and George L. Duncan, incorporated by reference to Exhibit 10.1.1 to the Company’s Form 10-Q for the quarter ended June 30, 2009.

10.17.2 First Amendment dated as of April 1, 2009 to Employment Agreement dated as of December 19, 2008 by and among the Company, the Bank and Richard W. Main, incorporated by reference to Exhibit 10.1.2 to the Company’s Form 10-Q for the quarter ended June 30, 2009.

127

10.17.3 First Amendment dated as of April 1, 2009 to Employment Agreement dated as of December 19, 2008 by and among the Company, the Bank and John P. Clancy, Jr., incorporated by reference to Exhibit 10.1.3 to the Company’s Form 10-Q for the quarter ended June 30, 2009.

10.18 Enterprise Bank 2012 Variable Compensation Plan, including information regarding grants to named executive officers, incorporated by reference to Exhibit 10 to the Company’s Form 8-K filed on March 26, 2012.

10.19 Enterprise Bank 2013 Variable Compensation Incentive Plan, incorporated by reference to Exhibit 10 to the Company’s Form 8-K filed on March 22, 2013.

21.0 Subsidiaries of the Registrant.

23.0 Consent of KPMG LLP.

31.1 Certification of principal executive officer under Securities and Exchange Act Rule 13a—14(a).

31.2 Certification of principal financial officer under Securities and Exchange Act Rule 13a—14(a).

32.0 Certification of principal executive officer and principal financial officer under 18 U.S.C § 1350 furnished pursuant to Securities and Exchange Act Rule 13a—14(b).

101 The following materials from Enterprise Bancorp, Inc.'s Annual Report on Form 10-K for the year ended December 31, 2013 were formatted in XBRL (eXtensible Business Reporting Language): (i) Consolidated Balance Sheets as of December 31, 2013 and December 31, 2012, (ii) Consolidated Statements of Income for the years ended December 31, 2013, 2012 and 2011, (iii) Consolidated Statements of Comprehensive Income for the years ended December 31, 2013, 2012 and 2011, (iv) Consolidated Statements of Changes in Equity for the years ended December 31, 2013, 2012 and 2011, (v) Consolidated Statements of Cash Flows for the years ended December 31, 2013, 2012 and 2011, and (vi) Notes to Consolidated Financial Statements.

(b) Exhibits required by Item 601 of Regulation S-K

The exhibits listed above either have been previously filed and are incorporated herein by reference to the applicable prior filing or are filed herewith.

(c) Additional Financial Statement Schedules

None

ENTERPRISE BANCORP, INC.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	ENTERPRISE BANCORP, INC.
Date: March 14, 2014	By:	/s/ James A. Marcotte
		James A. Marcotte
		Executive Vice President,
		Chief Financial Officer and Treasurer

128

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

/s/ George L. Duncan	Chairman	March 14, 2014
George L. Duncan
/s/ Gino J. Baroni	Director	March 14, 2014
Gino J. Baroni
/s/ John P. Clancy, Jr.	Director, Chief Executive Officer	March 14, 2014
John P. Clancy Jr.
/s/ John R. Clementi	Director	March 14, 2014
John R. Clementi
/s/ James F. Conway, III	Director	March 14, 2014
James F. Conway, III
/s/ Carole A. Cowan	Director	March 14, 2014
Carole A. Cowan
/s/ Normand E. Deschene	Director	March 14, 2014
Normand E. Deschene
/s/ Lucy A. Flynn	Director	March 14, 2014
Lucy A. Flynn
/s/ John T. Grady, Jr.	Director	March 14, 2014
John T. Grady, Jr.
/s/ Eric W. Hanson	Director	March 14, 2014
Eric W. Hanson
/s/ John P. Harrington	Director	March 14, 2014
John P. Harrington
/s/ John A. Koutsos	Director	March 14, 2014
John A. Koutsos
/s/ Arnold S. Lerner	Director, Vice Chairman	March 14, 2014
Arnold S. Lerner
/s/ Richard W. Main	Director, President	March 14, 2014
Richard W. Main
/s/Jacqueline F. Moloney	Director	March 14, 2014
Jacqueline F. Moloney

129

/s/ Michael T. Putziger	Director	March 14, 2014
Michael T. Putziger
/s/ Carol L. Reid	Director	March 14, 2014
Carol L. Reid
/s/ Michael A. Spinelli	Director, Secretary	March 14, 2014
Michael A. Spinelli
/s/ James A. Marcotte	Executive Vice President, Chief	March 14, 2014
James A. Marcotte	Financial Officer and Treasurer
/s/ Michael K. Sullivan	Controller of the Bank	March 14, 2014
Michael K. Sullivan

130

EX-21

EXHIBIT 21.0

Subsidiaries of Registrant

Subsidiary	State of Jurisdiction	Business Name
Enterprise Bank and Trust Company*	Massachusetts	Enterprise Bank
Enterprise Investment Services LLC**	Delaware	Enterprise Investment Services
Enterprise Insurance Services LLC**	Delaware	Enterprise Insurance Services
Enterprise Security Corporation**	Massachusetts	Same
Enterprise Security Corporation (II)**	Massachusetts	Same
Enterprise Security Corporation (III)**	Massachusetts	Same
Enterprise (MA) Capital Trust I*	Delaware	Same

* Direct subsidiary of Enterprise Bancorp, Inc.

** Direct subsidiary of Enterprise Bank and Trust Company

EX-23

EXHIBIT 23.0

Consent of Independent Registered Public Accounting Firm

The Board of Directors

Enterprise Bancorp, Inc.:

We consent to the incorporation by reference in the registration statements on Form S-8 (No. 333-184089, No. 333-159006, No. 333-136700, No. 333-133792, No. 333-105079, No. 333-60036 and 333-51953) and Form S-3 (No. 333-190017, No. 333-173940, No. 333-161828, No. 333-152076, No. 333-123542, and No. 333-79135) of Enterprise Bancorp, Inc. of our reports dated March 14, 2014, with respect to the consolidated balance sheets of Enterprise Bancorp, Inc. and subsidiaries as of December 31, 2013 and 2012, and the related consolidated statements of income, comprehensive income, changes in stockholders’ equity, and cash flows for each of the years in the three-year period ended December 31, 2013, and the effectiveness of internal control over financial reporting as of December 31, 2013, which reports appear in the December 31, 2013 annual report on Form 10-K of Enterprise Bancorp, Inc.

Boston, Massachusetts

March 14, 2014

EX-31.1

EXHIBIT 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

UNDER SECURITIES EXCHANGE ACT RULE 13a-14(a)

I, John P. Clancy, Jr., certify that:

1.I have reviewed this annual report on Form 10-K of Enterprise Bancorp, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under  our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	March 14, 2014	/s/ John P. Clancy, Jr.
		John P. Clancy, Jr.
		Chief Executive Officer (Principal Executive Officer)

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

UNDER SECURITIES EXCHANGE ACT RULE 13a-14(a)

I, James A. Marcotte, Jr., certify that:

1.I have reviewed this annual report on Form 10-K of Enterprise Bancorp, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and we have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under  our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	March 14, 2014	/s/ James A. Marcotte
		James A. Marcotte
		Executive Vice President, Chief Financial Officer and Treasurer, (Principal Financial Officer

EX-32

EXHIBIT 32

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER

UNDER 18 U.S.C. § 1350 FURNISHED PURSUANT TO SECURITIES EXCHANGE ACT RULE 13a-14(b)

In connection with the Annual Report of Enterprise Bancorp, Inc. (the “Company”) on Form 10-K for the year ended on December 31, 2013, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned, in his respective capacities indicated below, hereby certifies, pursuant to 18 U.S.C. § 1350, as enacted by Section 906 of the Sarbanes-Oxley Act of 2002, that, to his knowledge and belief, (1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 14, 2014

/s/ John P. Clancy, Jr.

John P. Clancy, Jr.

Chief Executive Officer (Principal Executive Officer)

/s/ James A. Marcotte

James A. Marcotte

Executive Vice President, Chief Financial Officer and Treasurer (Principal Financial Officer)

A signed original of this written statement required by Section 906 has been provided to Enterprise Bancorp, Inc. and will be retained by Enterprise Bancorp, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring and Nonrecurring Basis

The following tables summarize significant assets and liabilities carried at fair value and placement in the fair value hierarchy at the dates specified:

	December 31, 2013		Fair Value Measurements using:
(Dollars in thousands)	Fair Value		(level 1)		(level 2)		(level 3)
Assets measured on a recurring basis:
Fixed income securities	$	202,201	$	—	$	202,201	$	—
Equity securities	13,168		13,168		—		—
FHLB Stock	4,324		—		—		4,324
Assets measured on a non-recurring basis:
Impaired loans (collateral dependent)	6,542		—		—		6,542
Other real estate owned	114		—		—		114

	December 31, 2012		Fair Value Measurements using:
(Dollars in thousands)	Fair Value		(level 1)		(level 2)		(level 3)
Assets measured on a recurring basis:
Fixed income securities	$	173,796	$	—	$	173,796	$	—
Equity securities	10,668		10,668		—		—
FHLB Stock	4,260		—		—		4,260
Assets measured on a non-recurring basis:
Impaired loans (collateral dependent)	7,110		—		—		7,110
Other real estate owned	500		—		—		500

Quantitative Information About Significant Unobservable Inputs for Fair Value Measurements

The following table presents additional quantitative information about assets measured at fair value on a recurring and non-recurring basis for which the Company utilized Level 3 inputs (significant unobservable inputs for situations in which there is little, if any, market activity for the asset or liability) to determine fair value as of December 31, 2013.

(Dollars in thousands)	Fair Value	Valuation Technique	Unobservable Input	Unobservable Input Value or Range
Assets measured on a recurring basis:
FHLB Stock	$4,324	FHLB Stated Par Value	N/A	N/A
Assets measured on a non-recurring basis:
Impaired loans (collateral dependent)	$6,542	Appraisal of collateral	Appraisal adjustments (1)	5% - 50%
Other real estate owned	$114	Appraisal of collateral	Appraisal adjustments (1)	0% - 30%

(1) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses.

Fair Value, by Balance Sheet Grouping

The carrying values, estimated fair values and placement in the fair value hierarchy of the Company’s financial instruments⁽¹⁾ for which fair value is only disclosed but not recognized on the balance sheet at the dates indicated are summarized as follows:

	December 31, 2013				Fair value measurement
(Dollars in thousands)	Carrying Amount		Fair Value		Level 1 inputs		Level 2 Inputs		Level 3 Inputs
Financial assets:
Loans held for sale	$	1,255	$	1,255	$	—	$	1,255	$	—
Loans, net	1,497,089		1,516,809		—		—		1,516,809
Financial liabilities:
Certificates of deposit (including brokered)	251,650		250,045		—		250,045		—
Borrowed funds	36,534		36,535		—		36,535		—
Junior subordinated debentures	10,825		11,358		—		—		11,358

	December 31, 2012				Fair value measurement
(Dollars in thousands)	Carrying Amount		Fair Value		Level 1 inputs		Level 2 Inputs		Level 3 Inputs
Financial assets:
Loans held for sale	$	8,557	$	8,603	$	—	$	8,603	$	—
Loans, net	1,335,401		1,355,893		—		—		1,355,893
Financial liabilities:
Certificates of deposit (including brokered)	231,198		231,687		—		231,687		—
Borrowed funds	26,540		26,553		—		26,553		—
Junior subordinated debentures	10,825		12,597		—		—		12,597

(1) Excluded from this table are certain financial instruments that approximated their fair value, as they were short-term in nature or payable on demand.  These include cash and cash equivalents, accrued interest receivable, non-term deposit accounts, and accrued interest payable. The respective carrying values of these instruments would all be considered to be classified within Level 1 of their fair value hierarchy.

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Allowance For Loan Losses - Troubled Debt Restructures (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 restructuring	Dec. 31, 2012 restructuring
Financing Receivable, Modifications [Line Items]
Total Troubled Debt Restructure (TDR) loans	$ 20,900,000	$ 26,600,000
TDR loans on accrual status	11,400,000	16,000,000
TDR loans included in non-performing loans	9,500,000	10,500,000
Number of restructurings	9	15
Pre-modification outstanding recorded investment	3,400,000	4,591,000
Post-modification outstanding recorded investment	3,264,000	4,492,000
Number of TDR's that defaulted	1	3
Post-modification outstanding recorded investment	62,000	135,000
Charge-offs associated with TDRs	38,000	91,000
Specific reserves allocated to TDRs	142,000	802,000
Interest payments received on nonaccruing loans excluded from income	55,000	6,000
Additional funding commitment on TDRs	145,000
Commercial real estate | Commercial real estate
Financing Receivable, Modifications [Line Items]
Number of restructurings	2	3
Pre-modification outstanding recorded investment	724,000	423,000
Post-modification outstanding recorded investment	673,000	388,000
Number of TDR's that defaulted	0	0
Post-modification outstanding recorded investment	0	0
Commercial real estate | Commercial construction
Financing Receivable, Modifications [Line Items]
Number of restructurings	1	3
Pre-modification outstanding recorded investment	769,000	802,000
Post-modification outstanding recorded investment	769,000	746,000
Number of TDR's that defaulted	0	0
Post-modification outstanding recorded investment	0	0
Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of restructurings	5	7
Pre-modification outstanding recorded investment	1,903,000	2,980,000
Post-modification outstanding recorded investment	1,818,000	2,975,000
Number of TDR's that defaulted	1	2
Post-modification outstanding recorded investment	62,000	10,000
Residential | Residential
Financing Receivable, Modifications [Line Items]
Number of restructurings	0	2
Pre-modification outstanding recorded investment	0	386,000
Post-modification outstanding recorded investment	0	383,000
Number of TDR's that defaulted	0	1
Post-modification outstanding recorded investment	0	125,000
Residential | Home Equity
Financing Receivable, Modifications [Line Items]
Number of restructurings	0	0
Pre-modification outstanding recorded investment	0	0
Post-modification outstanding recorded investment	0	0
Number of TDR's that defaulted	0	0
Post-modification outstanding recorded investment	0	0
Consumer | Consumer
Financing Receivable, Modifications [Line Items]
Number of restructurings	1	0
Pre-modification outstanding recorded investment	4,000	0
Post-modification outstanding recorded investment	4,000	0
Number of TDR's that defaulted	0	0
Post-modification outstanding recorded investment	$ 0	$ 0

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Loans - Loan Categories Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Loans by Loan Classification [Line Items]
Outstanding loan balances to related parties	$ 12,100,000	$ 12,400,000
Unadvanced lines of credit available to related parties	4,100,000	2,700,000
New loans and net increases to loan balances to related parties during period	654,000
Principal paydowns on related party loans	988,000
Commercial real estate | Minimum
Schedule of Loans by Loan Classification [Line Items]
Repayment period, term of loan	15 years
Commercial real estate | Maximum
Schedule of Loans by Loan Classification [Line Items]
Repayment period, term of loan	25 years
Commercial and industrial | Minimum
Schedule of Loans by Loan Classification [Line Items]
Repayment period, term of loan	1 year
Commercial and industrial | Maximum
Schedule of Loans by Loan Classification [Line Items]
Repayment period, term of loan	7 years
Commercial construction | Minimum
Schedule of Loans by Loan Classification [Line Items]
Repayment period, term of loan	1 year
Commercial construction | Maximum
Schedule of Loans by Loan Classification [Line Items]
Repayment period, term of loan	3 years
Commercial
Schedule of Loans by Loan Classification [Line Items]
Participation loans amount	34,500,000	28,600,000
Participations loans sold that are still serviced	52,100,000	53,600,000
Tax exempt interest income on qualified commercial loans	1,300,000	1,400,000	1,200,000
Average tax exempt loan balances	31,100,000	31,600,000
Residential
Schedule of Loans by Loan Classification [Line Items]
Early payment default period	4
Amount of loans serviced for others	$ 20,600,000	$ 22,200,000
Residential | Maximum
Schedule of Loans by Loan Classification [Line Items]
Repayment period, term of loan	30 years
Adjustable rate mortgage | Minimum
Schedule of Loans by Loan Classification [Line Items]
Loan-to-value ratio	80.00%
Fixed Rate Residential Mortgage | Maximum
Schedule of Loans by Loan Classification [Line Items]
Loan-to-value ratio	97.00%
Home Equity | Maximum
Schedule of Loans by Loan Classification [Line Items]
Loan-to-value ratio	80.00%
Home Equity Lines of Credit Financing Receivable [Member]
Schedule of Loans by Loan Classification [Line Items]
Term of interest only payments	10 years
Term of principal and interest payments after Interest only term	15 years
Home equity loans | Minimum
Schedule of Loans by Loan Classification [Line Items]
Repayment period, term of loan	3 years
Period a loan has a fixed rate	3 years
Home equity loans | Maximum
Schedule of Loans by Loan Classification [Line Items]
Repayment period, term of loan	15 years
Period a loan has a fixed rate	15 years

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Employee Benefit Plans - Supplemental Life Insurance (Details) (Supplemental Life Insurance Benefit [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Supplemental Life Insurance Benefit [Member]
Other Postretirement Benefit Plan Disclosures [Line Items]
Benefit obligation at beginning of year	$ 1,664		$ 1,414		$ 1,317
Service cost	2		8		15
Interest cost	74		67		72
Actuarial loss(gain)	(164)	[1]	175	[1]	10	[1]
Benefit obligation at end of year	1,576		1,664		1,414
Accrued liability at end of year	(1,576)		(1,664)		(1,414)
Discount rate used for benefit obligation	5.00%		4.25%		4.75%
Net periodic benefit cost(benefit)	(88)		250		97
Accrual for benefit obligation for following year	$ 74

[1] Management utilizes the Moody’s 20 year AA corporate bond rates to establish the reasonableness of the discount rate used. The Company reviews and periodically updates the discount rate to reflect changes in bond market rates. The impact of the discount rate change is reflected as the actuarial gain or loss.

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Allowance For Loan Losses - Other Real Estate Owned (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 property	Dec. 31, 2012	Dec. 31, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value of OREO	$ 114	$ 500
Number of OREO properties sold	2
Net gains on sales of OREO	121	87	0
OREO fair value adjustment	23	0	0
Other real estate owned
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of OREO properties owned	1	1
Number of OREO properties added	2
Number of OREO properties sold from prior year	1
OREO fair value adjustment	$ 23

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Earnings per share (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Basic weighted average common shares outstanding	9,862,678	9,586,783	9,401,714
Dilutive shares	87,931	73,893	44,011
Diluted weighted average common shares outstanding	9,950,609	9,660,676	9,445,725
Stock options
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from computation of earnings per share	527	119,236

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Investments - Sales (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments, Debt and Equity Securities [Abstract]
Amortized cost of investments sold	$ 8,325	$ 3,309	$ 10,553
Gross realized gains on sales	1,243	241	791
Gross realized losses on sales	(4)	(5)	0
Total proceeds from sales of investments	$ 9,564	$ 3,545	$ 11,344

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Commitments, Contingencies and Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk (Tables)

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Schedule of Financial Instruments with Off-Balance Sheet Risk

Financial instruments with off-balance sheet credit risk at December 31, 2013 and 2012 are as follows:

(Dollars in thousands)	2013		2012
Commitments to originate loans	$	34,182	$	46,408
Commitments to originate residential mortgages loans for sale	2,007		9,325
Commitments to sell residential mortgage loans	3,262		17,882
Standby letters of credit	17,116		13,547
Unadvanced portions of commercial real estate loans	11,640		8,445
Unadvanced portions of commercial loans and lines	261,356		233,274
Unadvanced portions of construction loans (commercial & residential)	131,183		78,428
Unadvanced portions of home equity lines	60,281		57,511
Unadvanced portions of consumer loans	3,056		3,059

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Fair Value Measurements - Recurring and Nonrecurring Basis (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Specific allowance for collateral dependent impaired loans	$ 3,200,000	$ 3,300,000
Net gains on sales of OREO	121,000	87,000	0
OREO fair value adjustment	23,000	0	0
Other real estate owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
OREO fair value adjustment	23,000
Fair Value, Measurements, Recurring | Fair Value | Fixed income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	202,201,000	173,796,000
Fair Value, Measurements, Recurring | Fair Value | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	13,168,000	10,668,000
Fair Value, Measurements, Recurring | Fair Value | FHLB Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	4,324,000	4,260,000
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Fixed income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	13,168,000	10,668,000
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | FHLB Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Fixed income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	202,201,000	173,796,000
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | FHLB Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Fixed income securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | FHLB Stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets	4,324,000	4,260,000
Fair Value, Measurements, Nonrecurring | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans (collateral dependent), Fair Value	6,542,000	7,110,000
Other real estate owned, Fair Value	114,000	500,000
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans (collateral dependent), Fair Value	0	0
Other real estate owned, Fair Value	0	0
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans (collateral dependent), Fair Value	0	0
Other real estate owned, Fair Value	0	0
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans (collateral dependent), Fair Value	6,542,000	7,110,000
Other real estate owned, Fair Value	$ 114,000	$ 500,000

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Stock-Based Compensation Plans - Stock Options Activity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Outstanding Options, beginning balance	649,211
Granted, Options	47,684	68,750	83,075
Exercised, Options	273,529
Forfeited/Expired, Options	6,014
Outstanding Options, ending balance	417,352	649,211
Outstanding Options, Weighted Average Exercise Price, beginning balance	$ 14.28
Granted, Weighted Average Exercise Price	$ 16.61
Exercised, Weighted Average Exercise Price	$ 14.63
Forfeited/Expired, Weighted Average Exercise Price	$ 13.31
Outstanding Options, Weighted Average Exercise Price, ending balance	$ 14.32	$ 14.28
Outstanding Options, Weighted Average Remaining Life, beginning balance	3 years 6 months	2 years 7 months 8 days
Outstanding Options, Weighted Average Remaining Life, ending balance	3 years 6 months	2 years 7 months 8 days
Options Outstanding, Aggregate Intrinsic Value, beginning balance	$ 1,462
Options Outstanding, Aggregate Intrinsic Value, ending balance	2,857	1,462
Vested and Exercisable, ending balance, Options	265,252
Vested and Exercisable, ending balance, Weighted Average Exercise Price	$ 13.59
Vested and Exercisable, ending balance, Weighted Average Remaining Life	2 years 0 months 22 days
Vested and Exercisable, ending balance, Aggregate Intrinsic Value	$ 2,012

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Premises and Equipment (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Gross premises and equipment	$ 57,437,000	$ 52,691,000
Less accumulated depreciation	(27,546,000)	(25,485,000)
Total premises and equipment, net of accumulated depreciation	29,891,000	27,206,000
Depreciation expense	3,900,000	3,700,000	3,800,000
Land
Property, Plant and Equipment [Line Items]
Gross premises and equipment	4,594,000	4,594,000
Buildings, renovations, and leasehold improvements
Property, Plant and Equipment [Line Items]
Gross premises and equipment	30,516,000	28,283,000
Computer software and equipment
Property, Plant and Equipment [Line Items]
Gross premises and equipment	8,088,000	7,560,000
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Gross premises and equipment	$ 14,239,000	$ 12,254,000

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Income Taxes - Effective Income Tax Rate (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate									34.00%	34.00%	34.00%
Computed income tax expense at statutory rate									$ 6,963	$ 6,366	$ 5,476
State income taxes, net of federal tax benefit									1,029	968	833
Tax exempt income, net of disallowance									(988)	(1,020)	(972)
Bank Owned Life Insurance, net									(156)	(171)	(182)
Other									103	205	6
Total income tax expense	$ 1,653	$ 1,904	$ 1,606	$ 1,788	$ 1,540	$ 1,760	$ 1,436	$ 1,612	$ 6,951	$ 6,348	$ 5,161
Effective income tax rate									33.90%	33.90%	32.00%

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Parent Company Only Financial Statements - Parent Balance Sheet Parenthetical (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	9,992,560	9,676,477
Common stock, shares outstanding	9,992,560	9,676,477
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Unvested participating restricted stock awards	170,365	154,186
Parent
Condensed Financial Statements, Captions [Line Items]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	9,992,560	9,676,477
Common stock, shares outstanding	9,992,560	9,676,477
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Unvested participating restricted stock awards	170,365	154,186

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Fair Value Measurements Other Guarantees and Commitments (Details) (Financial Standby Letter of Credit)	12 Months Ended
	Dec. 31, 2013
Financial Standby Letter of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortization period of estimated fair value on standby letters of credit	1 year

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Quarterly Results of Operations (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]
Interest and dividend income	$ 18,525	$ 17,946	$ 17,458	$ 17,193	$ 17,360	$ 17,182	$ 17,087	$ 16,776	$ 71,122	$ 68,405	$ 66,969
Interest expense	1,313	1,313	1,331	1,374	1,438	1,534	1,676	1,847	5,331	6,495	8,643
Net interest income	17,212	16,633	16,127	15,819	15,922	15,648	15,411	14,929	65,791	61,910	58,326
Provision for loan losses	1,379	583	534	783	600	800	1,050	300	3,279	2,750	5,197
Net interest income after provision for loan losses	15,833	16,050	15,593	15,036	15,322	14,848	14,361	14,629	62,512	59,160	53,129
Non-interest income	3,224	3,085	3,085	3,159	3,225	2,947	2,840	2,927
Net gains on sales of investment securities	208	83	468	480	39	38	112	47	1,239	236	791
Non-interest expense	14,128	13,781	14,461	13,454	13,812	13,010	12,972	12,818	55,824	52,612	48,966
Income before income taxes	5,137	5,437	4,685	5,221	4,774	4,823	4,341	4,785	20,480	18,723	16,105
Provision for income taxes	1,653	1,904	1,606	1,788	1,540	1,760	1,436	1,612	6,951	6,348	5,161
Net income	$ 3,484	$ 3,533	$ 3,079	$ 3,433	$ 3,234	$ 3,063	$ 2,905	$ 3,173	$ 13,529	$ 12,375	$ 10,944
Basic earnings per share	$ 0.35	$ 0.36	$ 0.31	$ 0.35	$ 0.34	$ 0.32	$ 0.30	$ 0.33	$ 1.37	$ 1.29	$ 1.16
Diluted earnings per share	$ 0.35	$ 0.35	$ 0.31	$ 0.35	$ 0.33	$ 0.32	$ 0.30	$ 0.33	$ 1.36	$ 1.28	$ 1.16

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Income Taxes - Deferred Tax Asset and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Components of Deferred Tax Assets [Abstract]
Allowance for loan losses	$ 10,959	$ 9,841
Depreciation	2,804	2,811
Other-than-temporary impairment on equity securities	238	419
Supplemental employee retirement plans	1,174	1,291
Non-accrual interest	1,514	1,465
Stock-based compensation expense	661	866
Impairment of OREO	0	203
Other	137	114
Total	17,487	17,010
Components of Deferred Tax Liabilities [Abstract]
Goodwill	1,928	1,713
Net unrealized gains on investments securities	1,071	2,267
Deferred origination costs	561	482
Total	3,560	4,462
Net deferred tax asset	13,927	12,548
Total income taxes paid, net	7,342	6,611	7,112
Federal Historic Rehabilitation Tax Credit
Components of Deferred Tax Liabilities [Abstract]
Tax credit carryforward recognized during period		235
Federal Low Income Housing Tax Credit
Components of Deferred Tax Liabilities [Abstract]
Tax credit carryforward recognized during period	71	35
Anticipated additional tax credits	$ 607
Number of years tax credit to be recognized over	9 years

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Stock-Based Compensation Plans - Stock Options, Restricted Stock Awards, and Stock in Lieu of Directors' Fees (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended		12 Months Ended						12 Months Ended																									1 Months Ended	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Dec. 31, 2013 plans	Dec. 31, 2012	Dec. 31, 2011	Jan. 02, 2013	Jan. 03, 2012	Jan. 03, 2011	Dec. 31, 2013 Additional Paid-in Capital	Dec. 31, 2012 Additional Paid-in Capital	Dec. 31, 2011 Additional Paid-in Capital	Dec. 31, 2013 Director	Dec. 31, 2012 Director	Dec. 31, 2011 Director	Dec. 31, 2013 Options granted 2007 through 2012	Dec. 31, 2013 Options Granted in 2013	Dec. 31, 2013 Options Granted 2010 and Prior Y	Dec. 31, 2013 Stock options	Dec. 31, 2012 Stock options	Dec. 31, 2011 Stock options	Dec. 31, 2013 Stock options Options granted 2007 through 2012	Dec. 31, 2013 Restricted stock award, common stock	Dec. 31, 2012 Restricted stock award, common stock	Dec. 31, 2011 Restricted stock award, common stock	Dec. 31, 2013 Restricted stock award, common stock Employee	Dec. 31, 2012 Restricted stock award, common stock Employee	Dec. 31, 2012 Restricted stock award, common stock Executive Officer	Dec. 31, 2013 Restricted stock award, common stock Director	Dec. 31, 2012 Restricted stock award, common stock Director	Dec. 31, 2013 Company Performance Based	Dec. 31, 2013 Common stock in lieu of cash Director	Dec. 31, 2012 Common stock in lieu of cash Director	Dec. 31, 2011 Common stock in lieu of cash Director	Jan. 31, 2014 Subsequent Event	Dec. 31, 2013 Vesting, Year Two Stock options Options Granted in 2013	Dec. 31, 2013 Vesting, Year Four Stock options Options Granted in 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of individual stock incentive plans			2
Shares remain available for future grants under the 2009 plan			400,301
Stock-based compensation expense			$ 1,662	$ 1,271	$ 1,035													$ 422	$ 255	$ 230		$ 1,000	$ 832	$ 639							$ 194	$ 184	$ 166
Tax benefit from stock-based compensation expense			660	507	415							77	74	67				165	101	91		418	332	257
Options granted, vesting percentage																																			50.00%	50.00%
Award vesting period																					4 years				4 years	4 years		2 years	2 years
Expiration period of options granted			10 years												7 years	10 years
Age that prompts accelerated vesting of unvested options																	62
Price as a percentage of fair market value that stock options may not be granted below			100.00%
Percentage of ownership of common stock by participants that if greater causes greater grant price			10.00%
Price as a percentage of fair market value that stock options may not be granted below for anyone who owns more than 10% common stock			110.00%
Expiration period of options granted for those who own more than 10% common stock			5 years
In-the-money vested and exercisable options			265,252
Cash received from option exercises			1,829	509	309
Total intrinsic value of options exercised			1,100	151	101
Tax benefit from exercise of stock options			25	2	4				25	2	4
Unrecognized stock-based compensation expense, net of estimated forfeitures																		620				1,800
Remaining vesting period unrecognized compensation expense is to be recognized																		2 years 3 months 18 days				2 years 6 months
Shares of common stock as restricted stock awards granted in period																						80,541	72,376		26,660	63,160	3,000	6,146	6,216	47,735
Granted, Weighted Average Grant Price Per Share																						$ 16.43	$ 16.24
Directors fee expense			$ 356	$ 355	$ 368
Number of shares issued in lieu of cash to directors	12,592	12,132																																11,136
Fair market share price						$ 17.43	$ 14.63	$ 13.65

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Principles of Consolidation

The consolidated financial statements of Enterprise Bancorp, Inc. (the “Company” or “Enterprise”), a Massachusetts corporation, include the accounts of the Company and its wholly owned subsidiary Enterprise Bank and Trust Company (the “Bank”). The Bank is a Massachusetts trust company organized in 1989. Substantially all of the Company’s operations are conducted through the Bank.

The Bank’s subsidiaries include Enterprise Insurance Services, LLC and Enterprise Investment Services, LLC, organized under the laws of the state of Delaware for the purposes of engaging in insurance sales activities and offering non-deposit investment products and services, respectively.  In addition, the Bank has the following subsidiaries that are incorporated in the Commonwealth of Massachusetts and classified as security corporations in accordance with applicable Massachusetts General Laws: Enterprise Security Corporation; Enterprise Security Corporation II; and Enterprise Security Corporation III, which hold various types of qualifying securities.  The security corporations are limited to conducting securities investment activities that the Bank itself would be allowed to conduct under applicable laws.

The Company has 22 full service branches serving the Merrimack Valley and North Central regions of Massachusetts and Southern New Hampshire. Through the Bank and its subsidiaries, the Company offers a range of commercial and consumer loan products, deposit and cash management products, investment advisory and wealth management, trust and insurance services.  The services offered through the Bank and its subsidiaries are managed as one strategic unit and represent the Company’s only reportable operating segment.

Pursuant to the Accounting Standards Codification (“ASC”) Topic 810 “Consolidation of Variable Interest Entities,” issued by the Financial Accounting Standards Board ("FASB"), the Company carries Junior Subordinated Debentures as a liability on its consolidated financial statements, along with the related interest expense. The debentures were issued by a statutory business trust (the "Trust") created by the Company in March 2000 under the laws of the State of Delaware, and the trust preferred securities issued by the Trust, and the related non-interest expense, are excluded from the Company’s consolidated financial statements.

The Federal Deposit Insurance Corporation (“FDIC”) and the Massachusetts Division of Banks (the “Division”) have regulatory authority over the Bank. The Bank is also subject to certain regulatory requirements of the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”) and, with respect to its New Hampshire branch operations, the New Hampshire Banking Department. The business and operations of the Company are subject to the regulatory oversight of the Federal Reserve Board.  The Commissioner also retains supervisory jurisdiction over the Company.

Use of Estimates

In preparing the financial statements in conformity with U.S. generally accepted accounting principles ("GAAP"), management is required to exercise judgment in determining many of the methodologies, estimates and assumptions to be utilized.  These estimates and assumptions affect the reported values of assets and liabilities at the balance sheet date and income and expenses for the years then ended.  As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates should the assumptions and estimates used change over time due to changes in circumstances.  Changes in those estimates resulting from continuing change in the economic environment and other factors will be reflected in the financial statements and results of operations in future periods.  The three most significant areas in which management applies critical assumptions and estimates are the estimate of the allowance for loan losses, impairment review of investment securities and the impairment review of goodwill.

Basis of Accounting

The accompanying audited consolidated financial statements and notes thereto have been prepared in accordance with GAAP and the instructions for Form 10-K through the rules and interpretive releases of the SEC under federal securities law. In the opinion of management, the accompanying consolidated financial statements reflect all necessary adjustments consisting of normal recurring accruals for a fair presentation. All significant intercompany balances and transactions have been eliminated in the accompanying consolidated financial statements.

Cash and Cash Equivalents

Cash and cash equivalents

Cash equivalents are defined as highly liquid investments with original maturities of three months or less, that are readily convertible to known amounts of cash and present insignificant risk of changes in value due to changes in interest rates.  The Company's cash and cash equivalents are comprised of cash on hand and cash items due from banks, interest-earning deposits (deposit, money market, and money market mutual fund accounts) and overnight and term federal funds sold ("fed funds"). Balances in cash and cash equivalents will fluctuate resulting primarily from the timing of net deposit flows, borrowing and loan inflows and outflows, investment purchases and maturities, calls and sales proceeds, and the immediate liquidity needs of the Company. 

Investments

Investments

Investments that are intended to be held for indefinite periods of time but which may not be held to maturity or on a long-term basis are considered to be “available for sale” and are carried at fair value.  Net unrealized appreciation and depreciation on investments available for sale, net of applicable income taxes, are reflected as a component of accumulated other comprehensive income.  Included as available for sale are securities that are purchased in connection with the Company’s asset-liability risk management strategy and that may be sold in response to changes in interest rates, resultant prepayment risk and other related factors.  In instances where the Company has the positive intent to hold investment securities to maturity, investment securities will be classified as held to maturity and carried at amortized cost.  As of the balance sheet dates, all of the Company’s investment securities were classified as available for sale and carried at fair value.

There are inherent risks associated with the Company’s investment activities which could adversely impact the fair market value and the ultimate collectability of the Company’s investments.  Management regularly reviews the portfolio for securities with unrealized losses that are other than temporarily impaired.  The determination of other-than-temporary impairment (“OTTI”) involves a high degree of judgment and requires management to make significant estimates of current market risks and future trends. Management's assessment, depending on the type of security includes: reviews of market pricing, evaluating the level and duration of the loss on individual securities; ongoing credit quality evaluations; determining if any individual security or mutual fund or other fund exhibits fundamental deterioration; and estimating whether it is unlikely that the individual security or fund will completely recover its unrealized loss within a reasonable period of time, or in the case of fixed income securities prior to maturity.  While management uses available information to measure OTTI at the balance sheet date, future write-downs may be necessary based on extended duration of current unrealized losses, changing market conditions, or circumstances surrounding individual issuers and funds.

Should an investment be deemed have OTTI, the Company is required to write-down the carrying value of the investment. OTTI on equity securities are recognized through a charge to earnings. OTTI on fixed income securities are assessed in order to determine the impairment attributed to underlying credit quality of the issuer and the portion of noncredit impairment. When there are credit losses on a fixed income security that management does not intend to sell and it is more likely than not that the Company will not be required to sell prior to a marketplace recovery or maturity, the portion of the total impairment that is attributable to the credit loss would be recognized in earnings, and the remaining difference between the security’s amortized cost basis and its fair value would be included in other comprehensive income. Once written-down, a security may not be written-up in excess of its new cost basis to reflect future increases in market prices.  Any OTTI charges, depending upon the magnitude of the charges, could have a material adverse effect on the Company’s financial condition and results of operations.

Investment securities’ discounts are accreted and premiums are amortized over the period of estimated principal repayment using methods that approximate the interest method.

Gains or losses on the sale of investment securities are recognized on the trade date on a specific identification basis.

(d) Restricted Investments

As a member of the Federal Home Loan Bank of Boston (“FHLB”), the Bank is required to purchase certain levels of FHLB stock in association with outstanding advances from the FHLB; this restricted stock investment is carried at cost on the balance sheet, which management believes approximates fair value. FHLB stock represents the only restricted investment held by the Company.

In conjunction with the OTTI review noted above under investments, management also regularly reviews its holdings of FHLB stock for OTTI. Based on management’s ongoing review, the Company has not recorded any OTTI charges on this investment to date. However, if negative events or deterioration in the FHLB financial condition or capital levels occurs, the Company’s investment in FHLB capital stock may become other-than-temporarily impaired to some degree.  If it was determined that a write-down of FHLB stock was required, impairment would be recognized through a charge to earnings.

Loans Held for Sale

Loans Held for Sale

Depending on the current interest rate environment, management projections of future interest rates and the overall asset-liability management program of the Company, management may elect to sell those fixed and adjustable rate residential mortgage loans which are eligible for sale in the secondary market. Loans held for sale are carried at the lower of aggregate amortized cost or market value. Market value is based on comparable market prices for loans with similar rates and terms.  Mortgage loans are generally not pooled for sale, but instead sold on an individual basis. Enterprise may retain or sell the servicing when selling the loans.  Loans sold are subject to standard secondary market underwriting and eligibility representations and warranties over the life of the loan, and are subject to an early payment default period covering the first four payments for certain loan sales. When loans are sold, a gain or loss is recognized to the extent that the sales proceeds plus unamortized fees and costs exceed, or are less than, the carrying value of the loans.  Gains and losses are determined using the specific identification method.

Loans

Loans

Loans made by the Company to businesses include commercial mortgage loans, construction and land development loans, secured and unsecured commercial loans and lines of credit, and standby letters of credit.  The Company also originates equipment lease financing for businesses. Loans made to individuals include conventional residential mortgage loans, home equity loans and lines, residential construction loans on owner occupied primary and secondary residences, secured and unsecured personal loans and lines of credit.  Most loans granted by the Company are collateralized by real estate or equipment and/or are guaranteed by the principals of the borrower.  The ability and willingness of the single family residential and consumer borrowers to honor their repayment commitments is generally dependent on the level of overall economic activity and real estate values within the borrowers’ geographic areas.  The ability and willingness of commercial real estate, commercial and construction loan borrowers to honor their repayment commitments is generally dependent on the health of the real estate sector in the borrowers’ geographic areas and the general economy, among other factors.

Loans are reported at the principal amount outstanding, net of deferred origination fees and costs.  The aggregate amount of overdrawn deposit accounts are reclassified as loan balances. Loan origination fees received, offset by direct loan origination costs, are deferred and amortized using the straight line method over three to five years for lines of credit and demand notes or over the life of the related loans using the level-yield method for all other types of loans.  When loans are paid off, the unamortized fees and costs are recognized as an adjustment to interest income.

Loans acquired at a net premium are initially measured at fair value as of the acquisition date without carryover of historical allowance for loan losses. Credit discounts representing losses of unpaid loan principal balances expected over the life of the loans are included in the determination of acquisition date fair value. The fair-market valuation of loans acquired at a premium is amortized into interest income on a level-yield basis over the life of the loan. Subsequent to the purchase date, the methods utilized to estimate the required allowance for loan losses are similar to originated loans. 

Allowance for Loan Losses

Allowance for Loan Losses

The allowance for loan losses is an estimate of credit risk inherent in the loan portfolio as of the specified balance sheet dates.  The allowance for loan losses is established through a provision for loan losses, a direct charge to earnings.  Loan losses are charged against the allowance when management believes that the collectability of the loan principal is unlikely.  Recoveries on loans previously charged-off are credited to the allowance.  The Company maintains the allowance at a level that it deems adequate to absorb all reasonably anticipated losses from specifically known and other credit risks associated with the portfolio.

The Company uses a systematic methodology to measure the amount of estimated loan loss exposure inherent in the portfolio for purposes of establishing a sufficient allowance for loan losses. The methodology uses a two-tiered approach that makes use of specific reserves for loans individually evaluated and deemed impaired and general reserves for larger groups of homogeneous loans.

On a quarterly basis, the Company prepares an estimate of the allowance necessary to cover estimated credit risk inherent in the portfolio as of the specified balance sheet dates.  The adequacy of the allowance for loan losses is reviewed and evaluated on a regular basis by an internal management committee, a sub-committee of the Board of Directors and the full Board itself.

While management uses available information to recognize losses on loans, future additions to the allowance may be necessary.  In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Company’s allowance for loan losses.  Such agencies may require the Company to recognize additions to the allowance based on judgments different from those of management.

See Note 4, "Allowance for Loan Losses," for additional accounting policies related to non-accrual, impaired and troubled debt restructured loans and to the allowance for loan losses.

Other Real Estate Owned

Other Real Estate Owned

Real estate acquired by the Company through foreclosure proceedings or the acceptance of a deed in lieu of foreclosure is classified as Other Real Estate Owned (“OREO”). When property is acquired, it is generally recorded at the lesser of the loan’s remaining principal balance, net of unamortized deferred fees, or the estimated fair value of the property acquired, less estimated costs to sell. The estimated fair value is based on market appraisals and the Company’s internal analysis. Any loan balance in excess of the estimated realizable fair value on the date of transfer is charged to the allowance for loan losses on that date. All costs incurred thereafter in maintaining the property, as well as subsequent declines in fair value are charged to non-interest expense.

Premises and Equipment

Premises and Equipment

Land is carried at cost.  Premises and equipment are stated at cost less accumulated depreciation and amortization.  Depreciation or amortization is computed on a straight-line basis over the lesser of the estimated useful lives of the asset or the respective lease term (with reasonably assured renewal options) for leasehold improvements generally as follows:

Buildings, renovations and leasehold improvements	10 to 39 years
Computer software and equipment	3 to 5 years
Furniture, fixtures and equipment	3 to 10 years

Bank Owned Life Insurance

Bank Owned Life Insurance

The Company has purchased bank owned life insurance (“BOLI”) on certain current and former senior and executive officers.  The cash surrender value carried on the balance sheet at December 31, 2013 and December 31, 2012 amounted to $15.9 million and $15.4 million, respectively. There are no associated surrender charges under the outstanding policies.

Impairment of Long-Lived Assets Other than Goodwill

Impairment of Long-Lived Assets Other than Goodwill

The Company reviews long-lived assets, including premises and equipment, for impairment on an ongoing basis or whenever events or changes in business circumstances indicate that the remaining useful life may warrant revision or that the carrying amount of the long-lived asset may not be fully recoverable.  If impairment is determined to exist, any related impairment loss is recognized through a charge to earnings.  Impairment losses on assets disposed of, if any, are based on the estimated proceeds to be received, less cost of disposal.

Goodwill

Goodwill

Goodwill carried on the Company’s consolidated financial statements was $5.7 million at both December 31, 2013 and December 31, 2012. This asset is related to the Company’s acquisition of two branch offices in July 2000.

In accordance with generally accepted accounting principles, the Company does not amortize goodwill and instead, at least annually, evaluates whether the carrying value of goodwill has become impaired. Impairment of the goodwill may occur when the estimated fair value of the Company is less than its recorded book value. A determination that goodwill has become impaired results in an immediate write-down of goodwill to its determined value with a resulting charge to operations.

The annual impairment test begins with a qualitative assessment of whether it is more likely than not that the reporting unit's fair value is less than its carrying amount. The assessment is performed at the operating unit level.  If an entity concludes it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, it need not perform a two-step impairment test. In the case of the Company, the services offered through the Bank and subsidiaries are managed as one strategic unit and represent the Company’s only reportable operating segment.

Management's qualitative assessment takes into consideration macroeconomic conditions, industry and market considerations, cost or margin factors, financial performance and share price. Based on this assessment, the Company determined that it is not "more likely than not" that the Company's fair value is less than its carrying amount and therefore goodwill was not considered to be impaired at December 31, 2013.

If the Company's qualitative assessment concluded that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, it must perform the two-step impairment test to identify potential goodwill impairment and measure the amount of goodwill impairment loss to be recognized, if any. The first step of the goodwill impairment test, used to identify potential impairment, compares the estimated fair value of the reporting unit with its carrying amount, or the book value of the reporting unit, including goodwill.  If the estimated fair value of the reporting unit equals or exceeds its book value, goodwill is considered not impaired, and the second step of the impairment test is unnecessary. 

The second step, if necessary, measures the amount of goodwill impairment loss to be recognized.  The reporting unit must determine fair values for all assets and liabilities, excluding goodwill.  The net of the assigned fair value of assets and liabilities is then compared to the book value of the reporting unit, and any excess book value becomes the implied fair value of goodwill.   If the carrying amount of the goodwill exceeds the newly calculated implied fair value of that goodwill, an impairment loss is recognized in the amount required to write down the goodwill to the implied fair value.

Investment Assets Under Management

Investment Assets Under Management

Investment assets under management, consisting of assets managed through Enterprise Investment Advisors and Enterprise Investment Services and the commercial sweep product, totaled $667.3 million and $592.4 million at December 31, 2013 and 2012, respectively.  Fee income is recorded on an accrual basis and recognized over the period in which it is earned. Securities and other property held in a fiduciary or agency capacity are not included in the consolidated balance sheets because they are not assets of the Company.

Derivatives

Derivatives

The Company recognizes all derivatives as either assets or liabilities on its balance sheet and measures those instruments at fair market value.

Interest rate lock commitments related to the origination of mortgage loans that will be sold are considered derivative instruments.  The commitments to sell loans are also considered derivative instruments. The Company generally does not pool mortgage loans for sale, but instead, sells the loans on an individual basis. To reduce the net interest rate exposure arising from its loan sale activity, the Company enters into the commitment to sell these loans at essentially the same time that the interest rate lock commitment is quoted on the origination of the loan. The Company estimates the fair value of these derivatives based on current secondary mortgage market prices.

At December 31, 2013 and 2012, the estimated fair values of the Company’s derivative instruments were considered to be immaterial.

Stock Based Compensation

Stock Based Compensation

The Company’s financial statements include stock-based compensation expense for the portion of stock option awards, net of estimated forfeitures, and restricted stock awards for which the requisite service has been rendered during the period. The compensation expense has been estimated based on the estimated grant-date fair value of the awards, or in the case of restricted stock awards, the market value of the common stock on the date of grant.  The Company will recognize the remaining estimated compensation expense for the portion of outstanding awards and compensation expense for any future awards, net of estimated forfeitures, as the requisite service is rendered (i.e., on a straight-line basis over the remaining vesting period of each award). Stock awards that do not require future service (“vested awards”) will be expensed immediately. Stock-based compensation also includes stock compensation for Directors in lieu of cash fees, which is described in more detail in Note 11 "Stock-Based Compensation Plans."

Income Taxes

Income Taxes

The Company uses the asset and liability method of accounting for income taxes.  Under this method, deferred tax assets and liabilities are recognized for the future tax attributable to differences between the financial statement carrying amounts and the tax basis of assets and liabilities.  The deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled.  As changes in tax laws or rates are enacted, deferred tax assets and liabilities will be adjusted accordingly through the provision for income taxes.

The Company’s policy is to classify interest resulting from underpayment of income taxes as income tax expense in the first period the interest would begin accruing according to the provisions of the relevant tax law.  The Company classifies penalties resulting from underpayment of income taxes as income tax expense in the period for which the Company claims or expects to claim an uncertain tax position or in the period in which the Company’s judgment changes regarding an uncertain tax position.

The Company did not have any unrecognized tax benefits accrued as income tax liabilities or receivables or as deferred tax items at December 31, 2013 or December 31, 2012.  The Company is subject to U.S. federal and state income tax examinations by taxing authorities for the 2007 through 2013 tax years.

Earnings Per Share

Earnings Per Share

Basic earnings per share are calculated by dividing net income by the weighted average number of common shares outstanding (including participating securities) during the year.  The Company's only participating securities are unvested restricted stock awards that contain non-forfeitable rights to dividends. Diluted earnings per share reflects the effect on weighted average shares outstanding of the number of additional shares outstanding if dilutive stock options were converted into common stock using the treasury stock method.

Reporting Comprehensive Income

Reporting Comprehensive Income

Comprehensive income is defined as all changes to equity except investments by and distributions to stockholders.  Net income is one component of comprehensive income, with other components referred to in the aggregate as other comprehensive income.  The Company’s only other comprehensive income component is the net unrealized holding gains or losses on investments available-for-sale, net of deferred income taxes. Pursuant to Accounting Standards Update (“ASU”) No. 2013-02, Comprehensive Income (Topic 220): Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income, the Company initially excludes these unrealized holding gains and losses from net income; however, they are later reported as reclassifications out of accumulated other comprehensive income into net income when the securities are sold. When securities are sold, the reclassification of realized gains and losses on available-for-sale securities are included on the Consolidated Statements of Income under the "non-interest income" subheading on the line item "net gains on sales of investment securities" and the related income tax expense is included in the line item "provision for income taxes," both of which are also detailed on the Consolidated Statements of Comprehensive Income under the subheading "reclassification adjustment for net gains included in net income."

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In January 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-04, Receivables - Troubled Debt Restructurings by Creditors (Subtopic 310-40) - Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The amendments are intended to reduce diversity of practice by clarifying when a creditor should be considered to have received physical possession of residential real estate property collateralizing a residential mortgage loan, such that the loan should be removed, and the real estate property recognized, on the financial statements. Additionally, the amendments require interim and annual disclosure of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in collateralized residential mortgage loans that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendments in this ASU are effective for public business entities for annual periods and interim reporting periods beginning after December 15, 2014. As this ASU primarily offers clarification of existing standards and added disclosures, the adoption of this ASU in the first quarter of 2015 is not expected to have a material impact on the Company's financial statements, or results of operations.

In January 2014, the FASB issued ASU No. 2014-01, Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects. The amendments in this ASU apply to all reporting entities that invest in qualified affordable housing projects through limited liability entities that are flow through entities for tax purposes. The amendments in this ASU eliminate the effective yield election and permit reporting entities to make an accounting policy election to account for such investments using the proportional amortization method if certain conditions are met. The investor must recognize any subsequent impairment loss when it is more likely than not that the carrying amount of the investment will not be realized. Those not electing the proportional amortization method would account for the investment using the equity method or cost method. The decision to apply the proportional amortization method of accounting is an accounting policy decision that must be applied consistently to all qualifying affordable housing project investments rather than a decision to be applied to individual investments. A reporting entity must disclose information that enables users of its financial statements to understand the nature of such investments and the effect of the measurement, and the related tax credits, on its financial position and results of operations. The amendments in this Update are to be applied retrospectively to all periods presented. A reporting entity that uses the effective yield method to account for its investments in qualified affordable housing projects before the date of adoption may continue to apply the effective yield method for those preexisting investments. The amendments in this ASU are effective for public business entities for annual periods and interim reporting periods beginning after December 15, 2014. Early adoption is permitted. The adoption by the Company of this ASU is not expected to have a material impact on the Company's financial statements, or results of operations.

In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU") No. 2013-02, Comprehensive Income (Topic 220): Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income.  The new amendments require an organization to present the effects on the income statement of significant amounts reclassified out of accumulated other comprehensive income or cross-reference to other disclosures currently required under U.S. GAAP for certain items. The new amended standard is effective for annual periods beginning after December 15, 2012, and interim periods within those annual periods.  As this ASU addresses only disclosure requirements, this adoption in the first quarter of 2013 did not have a material impact on the Company's financial statements. See subsection (r) "Reporting Comprehensive Income" contained within this Note 1, for the disclosure of the effects of amounts reclassified out of accumulated other comprehensive income.

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Allowance For Loan Losses - Adversely Classified Loans (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]
Gross loans	$ 1,525,580	$ 1,361,048
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	820,299	710,265
Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	357,056	328,579
Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	132,507	121,367
Residential
Financing Receivable, Recorded Investment [Line Items]
Gross loans	132,721	120,278
Home Equity
Financing Receivable, Recorded Investment [Line Items]
Gross loans	74,354	75,648
Consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	8,643	4,911
Not Adversely Classified
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,497,664	1,326,613
Not Adversely Classified | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	805,488	688,266
Not Adversely Classified | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	348,861	321,078
Not Adversely Classified | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	129,149	118,381
Not Adversely Classified | Residential
Financing Receivable, Recorded Investment [Line Items]
Gross loans	131,709	119,024
Not Adversely Classified | Home Equity
Financing Receivable, Recorded Investment [Line Items]
Gross loans	73,854	74,987
Not Adversely Classified | Consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	8,603	4,877
Loss
Financing Receivable, Recorded Investment [Line Items]
Gross loans	236	48
Loss | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Loss | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	236	48
Loss | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Loss | Residential
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Loss | Home Equity
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Loss | Consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,317	1,460
Doubtful | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,266	0
Doubtful | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	51	1,460
Doubtful | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Doubtful | Residential
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Doubtful | Home Equity
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Doubtful | Consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	0	0
Substandard
Financing Receivable, Recorded Investment [Line Items]
Gross loans	26,363	32,927
Substandard | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Gross loans	13,545	21,999
Substandard | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Gross loans	7,908	5,993
Substandard | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Gross loans	3,358	2,986
Substandard | Residential
Financing Receivable, Recorded Investment [Line Items]
Gross loans	1,012	1,254
Substandard | Home Equity
Financing Receivable, Recorded Investment [Line Items]
Gross loans	500	661
Substandard | Consumer
Financing Receivable, Recorded Investment [Line Items]
Gross loans	$ 40	$ 34

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Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 segment branches	Dec. 31, 2012	Jul. 31, 2000 branches
Summary of Significant Accounting Policies [Line Items]
Number of branches	22
Number of operating segments	1
Bank-owned life insurance	$ 15,902,000	$ 15,443,000
Goodwill	5,656,000	5,656,000
Number of offices related to the goodwill in acquisition			2
Investment assets under management	$ 667,300,000	$ 592,400,000
Minimum | Buildings, renovations, and leasehold improvements
Summary of Significant Accounting Policies [Line Items]
Estimated useful lives	10 years
Minimum | Computer software and equipment
Summary of Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Minimum | Furniture, fixtures and equipment
Summary of Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Maximum | Buildings, renovations, and leasehold improvements
Summary of Significant Accounting Policies [Line Items]
Estimated useful lives	39 years
Maximum | Computer software and equipment
Summary of Significant Accounting Policies [Line Items]
Estimated useful lives	5 years
Maximum | Furniture, fixtures and equipment
Summary of Significant Accounting Policies [Line Items]
Estimated useful lives	10 years
Residential
Summary of Significant Accounting Policies [Line Items]
Early payment default period	4
Lines of Credit and Demand Notes | Minimum
Summary of Significant Accounting Policies [Line Items]
Period that loan deferred income is amortized	3 years
Lines of Credit and Demand Notes | Maximum
Summary of Significant Accounting Policies [Line Items]
Period that loan deferred income is amortized	5 years

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Income Taxes - Components of Income Tax Expense (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current tax expense:
Federal									$ 5,492	$ 5,368	$ 5,501
State									1,642	1,605	1,699
Total current tax expense									7,134	6,973	7,200
Deferred tax (benefit)/expense:
Federal									(100)	(487)	(1,602)
State									(83)	(138)	(437)
Total deferred tax benefit									(183)	(625)	(2,039)
Total income tax expense	$ 1,653	$ 1,904	$ 1,606	$ 1,788	$ 1,540	$ 1,760	$ 1,436	$ 1,612	$ 6,951	$ 6,348	$ 5,161

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The components of income tax expense for the years ended December 31 were calculated using the asset and liability method as follows:

(Dollars in thousands)	2013			2012			2011
Current tax expense:
Federal	$	5,492		$	5,368		$	5,501
State	1,642			1,605			1,699
Total current tax expense	7,134			6,973			7,200
Deferred tax (benefit)/ expense:
Federal	(100		)	(487		)	(1,602		)
State	(83		)	(138		)	(437		)
Total deferred tax benefit	(183		)	(625		)	(2,039		)
Total income tax expense	$	6,951		$	6,348		$	5,161

Schedule of Effective Income Tax Rate Reconciliation

The provision for income taxes differs from the amount computed by applying the statutory U.S. federal income tax rate (34%) to income before taxes as follows:

(Dollars in thousands)	2013			2012			2011
Computed income tax expense at statutory rate	$	6,963		$	6,366		$	5,476
State income taxes, net of federal tax benefit	1,029			968			833
Tax exempt income, net of disallowance	(988		)	(1,020		)	(972		)
Bank-owned life insurance income, net	(156		)	(171		)	(182		)
Other	103			205			6
Total income tax expense	$	6,951		$	6,348		$	5,161
Effective income tax rate	33.9		%	33.9		%	32.0		%

Schedule of Deferred Tax Assets and Liabilities

At December 31 the tax effects of each type of income and expense item that give rise to deferred taxes are:

(Dollars in thousands)	2013		2012
Deferred tax asset:
Allowance for loan losses	$	10,959	$	9,841
Depreciation	2,804		2,811
Other-than-temporary impairment on equity securities	238		419
Supplemental employee retirement plans	1,174		1,291
Non-accrual interest	1,514		1,465
Stock-based compensation expense	661		866
Impairment of OREO	—		203
Other	137		114
Total	17,487		17,010
Deferred tax liability:
Goodwill	1,928		1,713
Net unrealized gains on investments securities	1,071		2,267
Deferred origination costs	561		482
Total	3,560		4,462
Net deferred tax asset	$	13,927	$	12,548

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Allowance For Loan Losses - Interest Income Lost on Nonaccrual Loans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Receivables [Abstract]
Income in accordance with original loan terms	$ 1,171	$ 1,490	$ 1,545
Less income recognized	680	380	140
Reduction in interest income	$ 491	$ 1,110	$ 1,405

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Employee Benefit Plans - Defined Contribution Plan and Profit Sharing (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 H Y	Dec. 31, 2012	Dec. 31, 2011
Compensation and Retirement Disclosure [Abstract]
Company's percentage match on 401(k) defined contribution plan	60.00%
Maximum percentage of employee contribution fully matched by Company	6.00%
Minimum age to be eligible for 401(k) plan	18
Number of minimum hours required to work for 401(k) plan eligibility	1
Employer's matching contribution, annual vesting percentage for 401(k) plan	20.00%
Number of years to be fully vested for 401(k) plan	5 years
Minimum age to be eligible for profit sharing component of 401(k) plan	18
Number of minimum hours required to work for profit sharing component of 401(k) plan	1
Maximum salary used in calculation of profit sharing contribution paid by company	$ 75
Discretionary employer contributions	0	0	0
Expense for the 401(k) plan match (excluding profit sharing component)	692	629	591
Expense for profit sharing contributions to the 401(k) plan	$ 458	$ 618	$ 399

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Borrowed Funds and Debentures (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2000
Debt Instrument [Line Items]
Borrowed funds	$ 36,534	$ 26,540
Federal Home Loan Bank of Boston borrowings, Average Rate	0.30%	0.44%	1.83%
Junior subordinated debentures, Amount	10,825	10,825	10,825	10,825
Junior subordinated debentures, Average Rate	10.88%	10.88%	10.88%
Total borrowed funds and debentures, Amount	47,359	37,365	15,319
Total borrowed funds and debentures, Average Rate	2.72%	3.46%	8.22%
Federal Home Loan Bank of Boston borrowings
Debt Instrument [Line Items]
Borrowed funds	$ 36,534	$ 26,540	$ 4,494

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Loans - Balance by Class of Loans (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Loans by Loan Classification [Line Items]
Gross loans	$ 1,525,580	$ 1,361,048
Deferred loan origination fees, net	(1,524)	(1,393)
Total loans	1,524,056	1,359,655
Allowance for loan losses	(26,967)	(24,254)	(23,160)	(19,415)
Net loans	1,497,089	1,335,401
Commercial real estate
Schedule of Loans by Loan Classification [Line Items]
Gross loans	820,299	710,265
Allowance for loan losses	(13,174)	(11,793)	(10,855)
Commercial construction
Schedule of Loans by Loan Classification [Line Items]
Gross loans	132,507	121,367
Allowance for loan losses	(3,493)	(3,456)	(3,013)
Residential
Schedule of Loans by Loan Classification [Line Items]
Gross loans	132,721	120,278
Allowance for loan losses	(1,057)	(854)	(995)
Real Estate Loans
Schedule of Loans by Loan Classification [Line Items]
Gross loans	1,085,527	951,910
Commercial and industrial
Schedule of Loans by Loan Classification [Line Items]
Gross loans	357,056	328,579
Allowance for loan losses	(8,365)	(7,297)	(7,568)
Home Equity
Schedule of Loans by Loan Classification [Line Items]
Gross loans	74,354	75,648
Allowance for loan losses	(653)	(728)	(615)
Consumer
Schedule of Loans by Loan Classification [Line Items]
Gross loans	8,643	4,911
Allowance for loan losses	$ (225)	$ (126)	$ (114)

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

(a) Organization of Holding Company and Basis of Presentation

The consolidated financial statements of Enterprise Bancorp, Inc. (the “Company” or “Enterprise”), a Massachusetts corporation, include the accounts of the Company and its wholly owned subsidiary Enterprise Bank and Trust Company (the “Bank”). The Bank is a Massachusetts trust company organized in 1989. Substantially all of the Company’s operations are conducted through the Bank.

The Bank’s subsidiaries include Enterprise Insurance Services, LLC and Enterprise Investment Services, LLC, organized under the laws of the state of Delaware for the purposes of engaging in insurance sales activities and offering non-deposit investment products and services, respectively.  In addition, the Bank has the following subsidiaries that are incorporated in the Commonwealth of Massachusetts and classified as security corporations in accordance with applicable Massachusetts General Laws: Enterprise Security Corporation; Enterprise Security Corporation II; and Enterprise Security Corporation III, which hold various types of qualifying securities.  The security corporations are limited to conducting securities investment activities that the Bank itself would be allowed to conduct under applicable laws.

The Company has 22 full service branches serving the Merrimack Valley and North Central regions of Massachusetts and Southern New Hampshire. Through the Bank and its subsidiaries, the Company offers a range of commercial and consumer loan products, deposit and cash management products, investment advisory and wealth management, trust and insurance services.  The services offered through the Bank and its subsidiaries are managed as one strategic unit and represent the Company’s only reportable operating segment.

Pursuant to the Accounting Standards Codification (“ASC”) Topic 810 “Consolidation of Variable Interest Entities,” issued by the Financial Accounting Standards Board ("FASB"), the Company carries Junior Subordinated Debentures as a liability on its consolidated financial statements, along with the related interest expense. The debentures were issued by a statutory business trust (the "Trust") created by the Company in March 2000 under the laws of the State of Delaware, and the trust preferred securities issued by the Trust, and the related non-interest expense, are excluded from the Company’s consolidated financial statements.

The Federal Deposit Insurance Corporation (“FDIC”) and the Massachusetts Division of Banks (the “Division”) have regulatory authority over the Bank. The Bank is also subject to certain regulatory requirements of the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”) and, with respect to its New Hampshire branch operations, the New Hampshire Banking Department. The business and operations of the Company are subject to the regulatory oversight of the Federal Reserve Board.  The Commissioner also retains supervisory jurisdiction over the Company.

In preparing the financial statements in conformity with U.S. generally accepted accounting principles ("GAAP"), management is required to exercise judgment in determining many of the methodologies, estimates and assumptions to be utilized.  These estimates and assumptions affect the reported values of assets and liabilities at the balance sheet date and income and expenses for the years then ended.  As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates should the assumptions and estimates used change over time due to changes in circumstances.  Changes in those estimates resulting from continuing change in the economic environment and other factors will be reflected in the financial statements and results of operations in future periods.  The three most significant areas in which management applies critical assumptions and estimates are the estimate of the allowance for loan losses, impairment review of investment securities and the impairment review of goodwill.

The accompanying audited consolidated financial statements and notes thereto have been prepared in accordance with GAAP and the instructions for Form 10-K through the rules and interpretive releases of the SEC under federal securities law. In the opinion of management, the accompanying consolidated financial statements reflect all necessary adjustments consisting of normal recurring accruals for a fair presentation. All significant intercompany balances and transactions have been eliminated in the accompanying consolidated financial statements.

(b) Cash and cash equivalents

Cash equivalents are defined as highly liquid investments with original maturities of three months or less, that are readily convertible to known amounts of cash and present insignificant risk of changes in value due to changes in interest rates.  The Company's cash and cash equivalents are comprised of cash on hand and cash items due from banks, interest-earning deposits (deposit, money market, and money market mutual fund accounts) and overnight and term federal funds sold ("fed funds"). Balances in cash and cash equivalents will fluctuate resulting primarily from the timing of net deposit flows, borrowing and loan inflows and outflows, investment purchases and maturities, calls and sales proceeds, and the immediate liquidity needs of the Company. 

(c) Investments

Investments that are intended to be held for indefinite periods of time but which may not be held to maturity or on a long-term basis are considered to be “available for sale” and are carried at fair value.  Net unrealized appreciation and depreciation on investments available for sale, net of applicable income taxes, are reflected as a component of accumulated other comprehensive income.  Included as available for sale are securities that are purchased in connection with the Company’s asset-liability risk management strategy and that may be sold in response to changes in interest rates, resultant prepayment risk and other related factors.  In instances where the Company has the positive intent to hold investment securities to maturity, investment securities will be classified as held to maturity and carried at amortized cost.  As of the balance sheet dates, all of the Company’s investment securities were classified as available for sale and carried at fair value.

There are inherent risks associated with the Company’s investment activities which could adversely impact the fair market value and the ultimate collectability of the Company’s investments.  Management regularly reviews the portfolio for securities with unrealized losses that are other than temporarily impaired.  The determination of other-than-temporary impairment (“OTTI”) involves a high degree of judgment and requires management to make significant estimates of current market risks and future trends. Management's assessment, depending on the type of security includes: reviews of market pricing, evaluating the level and duration of the loss on individual securities; ongoing credit quality evaluations; determining if any individual security or mutual fund or other fund exhibits fundamental deterioration; and estimating whether it is unlikely that the individual security or fund will completely recover its unrealized loss within a reasonable period of time, or in the case of fixed income securities prior to maturity.  While management uses available information to measure OTTI at the balance sheet date, future write-downs may be necessary based on extended duration of current unrealized losses, changing market conditions, or circumstances surrounding individual issuers and funds.

Should an investment be deemed have OTTI, the Company is required to write-down the carrying value of the investment. OTTI on equity securities are recognized through a charge to earnings. OTTI on fixed income securities are assessed in order to determine the impairment attributed to underlying credit quality of the issuer and the portion of noncredit impairment. When there are credit losses on a fixed income security that management does not intend to sell and it is more likely than not that the Company will not be required to sell prior to a marketplace recovery or maturity, the portion of the total impairment that is attributable to the credit loss would be recognized in earnings, and the remaining difference between the security’s amortized cost basis and its fair value would be included in other comprehensive income. Once written-down, a security may not be written-up in excess of its new cost basis to reflect future increases in market prices.  Any OTTI charges, depending upon the magnitude of the charges, could have a material adverse effect on the Company’s financial condition and results of operations.

Investment securities’ discounts are accreted and premiums are amortized over the period of estimated principal repayment using methods that approximate the interest method.

Gains or losses on the sale of investment securities are recognized on the trade date on a specific identification basis.

(d) Restricted Investments

As a member of the Federal Home Loan Bank of Boston (“FHLB”), the Bank is required to purchase certain levels of FHLB stock in association with outstanding advances from the FHLB; this restricted stock investment is carried at cost on the balance sheet, which management believes approximates fair value. FHLB stock represents the only restricted investment held by the Company.

In conjunction with the OTTI review noted above under investments, management also regularly reviews its holdings of FHLB stock for OTTI. Based on management’s ongoing review, the Company has not recorded any OTTI charges on this investment to date. However, if negative events or deterioration in the FHLB financial condition or capital levels occurs, the Company’s investment in FHLB capital stock may become other-than-temporarily impaired to some degree.  If it was determined that a write-down of FHLB stock was required, impairment would be recognized through a charge to earnings.

(e) Loans Held for Sale

Depending on the current interest rate environment, management projections of future interest rates and the overall asset-liability management program of the Company, management may elect to sell those fixed and adjustable rate residential mortgage loans which are eligible for sale in the secondary market. Loans held for sale are carried at the lower of aggregate amortized cost or market value. Market value is based on comparable market prices for loans with similar rates and terms.  Mortgage loans are generally not pooled for sale, but instead sold on an individual basis. Enterprise may retain or sell the servicing when selling the loans.  Loans sold are subject to standard secondary market underwriting and eligibility representations and warranties over the life of the loan, and are subject to an early payment default period covering the first four payments for certain loan sales. When loans are sold, a gain or loss is recognized to the extent that the sales proceeds plus unamortized fees and costs exceed, or are less than, the carrying value of the loans.  Gains and losses are determined using the specific identification method.

(f) Loans

Loans made by the Company to businesses include commercial mortgage loans, construction and land development loans, secured and unsecured commercial loans and lines of credit, and standby letters of credit.  The Company also originates equipment lease financing for businesses. Loans made to individuals include conventional residential mortgage loans, home equity loans and lines, residential construction loans on owner occupied primary and secondary residences, secured and unsecured personal loans and lines of credit.  Most loans granted by the Company are collateralized by real estate or equipment and/or are guaranteed by the principals of the borrower.  The ability and willingness of the single family residential and consumer borrowers to honor their repayment commitments is generally dependent on the level of overall economic activity and real estate values within the borrowers’ geographic areas.  The ability and willingness of commercial real estate, commercial and construction loan borrowers to honor their repayment commitments is generally dependent on the health of the real estate sector in the borrowers’ geographic areas and the general economy, among other factors.

Loans are reported at the principal amount outstanding, net of deferred origination fees and costs.  The aggregate amount of overdrawn deposit accounts are reclassified as loan balances. Loan origination fees received, offset by direct loan origination costs, are deferred and amortized using the straight line method over three to five years for lines of credit and demand notes or over the life of the related loans using the level-yield method for all other types of loans.  When loans are paid off, the unamortized fees and costs are recognized as an adjustment to interest income.

Loans acquired at a net premium are initially measured at fair value as of the acquisition date without carryover of historical allowance for loan losses. Credit discounts representing losses of unpaid loan principal balances expected over the life of the loans are included in the determination of acquisition date fair value. The fair-market valuation of loans acquired at a premium is amortized into interest income on a level-yield basis over the life of the loan. Subsequent to the purchase date, the methods utilized to estimate the required allowance for loan losses are similar to originated loans. 

(g) Allowance for Loan Losses

The allowance for loan losses is an estimate of credit risk inherent in the loan portfolio as of the specified balance sheet dates.  The allowance for loan losses is established through a provision for loan losses, a direct charge to earnings.  Loan losses are charged against the allowance when management believes that the collectability of the loan principal is unlikely.  Recoveries on loans previously charged-off are credited to the allowance.  The Company maintains the allowance at a level that it deems adequate to absorb all reasonably anticipated losses from specifically known and other credit risks associated with the portfolio.

The Company uses a systematic methodology to measure the amount of estimated loan loss exposure inherent in the portfolio for purposes of establishing a sufficient allowance for loan losses. The methodology uses a two-tiered approach that makes use of specific reserves for loans individually evaluated and deemed impaired and general reserves for larger groups of homogeneous loans.

On a quarterly basis, the Company prepares an estimate of the allowance necessary to cover estimated credit risk inherent in the portfolio as of the specified balance sheet dates.  The adequacy of the allowance for loan losses is reviewed and evaluated on a regular basis by an internal management committee, a sub-committee of the Board of Directors and the full Board itself.

While management uses available information to recognize losses on loans, future additions to the allowance may be necessary.  In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Company’s allowance for loan losses.  Such agencies may require the Company to recognize additions to the allowance based on judgments different from those of management.

See Note 4, "Allowance for Loan Losses," for additional accounting policies related to non-accrual, impaired and troubled debt restructured loans and to the allowance for loan losses.

(h) Other Real Estate Owned

Real estate acquired by the Company through foreclosure proceedings or the acceptance of a deed in lieu of foreclosure is classified as Other Real Estate Owned (“OREO”). When property is acquired, it is generally recorded at the lesser of the loan’s remaining principal balance, net of unamortized deferred fees, or the estimated fair value of the property acquired, less estimated costs to sell. The estimated fair value is based on market appraisals and the Company’s internal analysis. Any loan balance in excess of the estimated realizable fair value on the date of transfer is charged to the allowance for loan losses on that date. All costs incurred thereafter in maintaining the property, as well as subsequent declines in fair value are charged to non-interest expense.

(i) Premises and Equipment

Land is carried at cost.  Premises and equipment are stated at cost less accumulated depreciation and amortization.  Depreciation or amortization is computed on a straight-line basis over the lesser of the estimated useful lives of the asset or the respective lease term (with reasonably assured renewal options) for leasehold improvements generally as follows:

Buildings, renovations and leasehold improvements	10 to 39 years
Computer software and equipment	3 to 5 years
Furniture, fixtures and equipment	3 to 10 years

(j) Bank Owned Life Insurance

The Company has purchased bank owned life insurance (“BOLI”) on certain current and former senior and executive officers.  The cash surrender value carried on the balance sheet at December 31, 2013 and December 31, 2012 amounted to $15.9 million and $15.4 million, respectively. There are no associated surrender charges under the outstanding policies.

(k) Impairment of Long-Lived Assets Other than Goodwill

The Company reviews long-lived assets, including premises and equipment, for impairment on an ongoing basis or whenever events or changes in business circumstances indicate that the remaining useful life may warrant revision or that the carrying amount of the long-lived asset may not be fully recoverable.  If impairment is determined to exist, any related impairment loss is recognized through a charge to earnings.  Impairment losses on assets disposed of, if any, are based on the estimated proceeds to be received, less cost of disposal.

(l) Goodwill

Goodwill carried on the Company’s consolidated financial statements was $5.7 million at both December 31, 2013 and December 31, 2012. This asset is related to the Company’s acquisition of two branch offices in July 2000.

In accordance with generally accepted accounting principles, the Company does not amortize goodwill and instead, at least annually, evaluates whether the carrying value of goodwill has become impaired. Impairment of the goodwill may occur when the estimated fair value of the Company is less than its recorded book value. A determination that goodwill has become impaired results in an immediate write-down of goodwill to its determined value with a resulting charge to operations.

The annual impairment test begins with a qualitative assessment of whether it is more likely than not that the reporting unit's fair value is less than its carrying amount. The assessment is performed at the operating unit level.  If an entity concludes it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, it need not perform a two-step impairment test. In the case of the Company, the services offered through the Bank and subsidiaries are managed as one strategic unit and represent the Company’s only reportable operating segment.

Management's qualitative assessment takes into consideration macroeconomic conditions, industry and market considerations, cost or margin factors, financial performance and share price. Based on this assessment, the Company determined that it is not "more likely than not" that the Company's fair value is less than its carrying amount and therefore goodwill was not considered to be impaired at December 31, 2013.

If the Company's qualitative assessment concluded that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, it must perform the two-step impairment test to identify potential goodwill impairment and measure the amount of goodwill impairment loss to be recognized, if any. The first step of the goodwill impairment test, used to identify potential impairment, compares the estimated fair value of the reporting unit with its carrying amount, or the book value of the reporting unit, including goodwill.  If the estimated fair value of the reporting unit equals or exceeds its book value, goodwill is considered not impaired, and the second step of the impairment test is unnecessary. 

The second step, if necessary, measures the amount of goodwill impairment loss to be recognized.  The reporting unit must determine fair values for all assets and liabilities, excluding goodwill.  The net of the assigned fair value of assets and liabilities is then compared to the book value of the reporting unit, and any excess book value becomes the implied fair value of goodwill.   If the carrying amount of the goodwill exceeds the newly calculated implied fair value of that goodwill, an impairment loss is recognized in the amount required to write down the goodwill to the implied fair value. 

(m) Investment Assets Under Management

Investment assets under management, consisting of assets managed through Enterprise Investment Advisors and Enterprise Investment Services and the commercial sweep product, totaled $667.3 million and $592.4 million at December 31, 2013 and 2012, respectively.  Fee income is recorded on an accrual basis and recognized over the period in which it is earned. Securities and other property held in a fiduciary or agency capacity are not included in the consolidated balance sheets because they are not assets of the Company.

(n) Derivatives

The Company recognizes all derivatives as either assets or liabilities on its balance sheet and measures those instruments at fair market value.

Interest rate lock commitments related to the origination of mortgage loans that will be sold are considered derivative instruments.  The commitments to sell loans are also considered derivative instruments. The Company generally does not pool mortgage loans for sale, but instead, sells the loans on an individual basis. To reduce the net interest rate exposure arising from its loan sale activity, the Company enters into the commitment to sell these loans at essentially the same time that the interest rate lock commitment is quoted on the origination of the loan. The Company estimates the fair value of these derivatives based on current secondary mortgage market prices.

At December 31, 2013 and 2012, the estimated fair values of the Company’s derivative instruments were considered to be immaterial. These commitments represent the Company’s only derivative instruments. 

(o) Stock Based Compensation

The Company’s financial statements include stock-based compensation expense for the portion of stock option awards, net of estimated forfeitures, and restricted stock awards for which the requisite service has been rendered during the period. The compensation expense has been estimated based on the estimated grant-date fair value of the awards, or in the case of restricted stock awards, the market value of the common stock on the date of grant.  The Company will recognize the remaining estimated compensation expense for the portion of outstanding awards and compensation expense for any future awards, net of estimated forfeitures, as the requisite service is rendered (i.e., on a straight-line basis over the remaining vesting period of each award). Stock awards that do not require future service (“vested awards”) will be expensed immediately. Stock-based compensation also includes stock compensation for Directors in lieu of cash fees, which is described in more detail in Note 11 "Stock-Based Compensation Plans."

(p) Income Taxes

The Company uses the asset and liability method of accounting for income taxes.  Under this method, deferred tax assets and liabilities are recognized for the future tax attributable to differences between the financial statement carrying amounts and the tax basis of assets and liabilities.  The deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled.  As changes in tax laws or rates are enacted, deferred tax assets and liabilities will be adjusted accordingly through the provision for income taxes.

The Company’s policy is to classify interest resulting from underpayment of income taxes as income tax expense in the first period the interest would begin accruing according to the provisions of the relevant tax law.  The Company classifies penalties resulting from underpayment of income taxes as income tax expense in the period for which the Company claims or expects to claim an uncertain tax position or in the period in which the Company’s judgment changes regarding an uncertain tax position.

The Company did not have any unrecognized tax benefits accrued as income tax liabilities or receivables or as deferred tax items at December 31, 2013 or December 31, 2012.  The Company is subject to U.S. federal and state income tax examinations by taxing authorities for the 2007 through 2013 tax years.

(q) Earnings Per Share

Basic earnings per share are calculated by dividing net income by the weighted average number of common shares outstanding (including participating securities) during the year.  The Company's only participating securities are unvested restricted stock awards that contain non-forfeitable rights to dividends. Diluted earnings per share reflects the effect on weighted average shares outstanding of the number of additional shares outstanding if dilutive stock options were converted into common stock using the treasury stock method.

(r) Reporting Comprehensive Income

Comprehensive income is defined as all changes to equity except investments by and distributions to stockholders.  Net income is one component of comprehensive income, with other components referred to in the aggregate as other comprehensive income.  The Company’s only other comprehensive income component is the net unrealized holding gains or losses on investments available-for-sale, net of deferred income taxes. Pursuant to Accounting Standards Update (“ASU”) No. 2013-02, Comprehensive Income (Topic 220): Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income, the Company initially excludes these unrealized holding gains and losses from net income; however, they are later reported as reclassifications out of accumulated other comprehensive income into net income when the securities are sold. When securities are sold, the reclassification of realized gains and losses on available-for-sale securities are included on the Consolidated Statements of Income under the "non-interest income" subheading on the line item "net gains on sales of investment securities" and the related income tax expense is included in the line item "provision for income taxes," both of which are also detailed on the Consolidated Statements of Comprehensive Income under the subheading "reclassification adjustment for net gains included in net income."

(s) Recent Accounting Pronouncements

In January 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-04, Receivables - Troubled Debt Restructurings by Creditors (Subtopic 310-40) - Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The amendments are intended to reduce diversity of practice by clarifying when a creditor should be considered to have received physical possession of residential real estate property collateralizing a residential mortgage loan, such that the loan should be removed, and the real estate property recognized, on the financial statements. Additionally, the amendments require interim and annual disclosure of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in collateralized residential mortgage loans that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendments in this ASU are effective for public business entities for annual periods and interim reporting periods beginning after December 15, 2014. As this ASU primarily offers clarification of existing standards and added disclosures, the adoption of this ASU in the first quarter of 2015 is not expected to have a material impact on the Company's financial statements, or results of operations.

In January 2014, the FASB issued ASU No. 2014-01, Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects. The amendments in this ASU apply to all reporting entities that invest in qualified affordable housing projects through limited liability entities that are flow through entities for tax purposes. The amendments in this ASU eliminate the effective yield election and permit reporting entities to make an accounting policy election to account for such investments using the proportional amortization method if certain conditions are met. The investor must recognize any subsequent impairment loss when it is more likely than not that the carrying amount of the investment will not be realized. Those not electing the proportional amortization method would account for the investment using the equity method or cost method. The decision to apply the proportional amortization method of accounting is an accounting policy decision that must be applied consistently to all qualifying affordable housing project investments rather than a decision to be applied to individual investments. A reporting entity must disclose information that enables users of its financial statements to understand the nature of such investments and the effect of the measurement, and the related tax credits, on its financial position and results of operations. The amendments in this Update are to be applied retrospectively to all periods presented. A reporting entity that uses the effective yield method to account for its investments in qualified affordable housing projects before the date of adoption may continue to apply the effective yield method for those preexisting investments. The amendments in this ASU are effective for public business entities for annual periods and interim reporting periods beginning after December 15, 2014. Early adoption is permitted. The adoption by the Company of this ASU is not expected to have a material impact on the Company's financial statements, or results of operations.

In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update ("ASU") No. 2013-02, Comprehensive Income (Topic 220): Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income.  The new amendments require an organization to present the effects on the income statement of significant amounts reclassified out of accumulated other comprehensive income or cross-reference to other disclosures currently required under U.S. GAAP for certain items. The new amended standard is effective for annual periods beginning after December 15, 2012, and interim periods within those annual periods.  As this ASU addresses only disclosure requirements, this adoption in the first quarter of 2013 did not have a material impact on the Company's financial statements. See subsection (r) "Reporting Comprehensive Income" contained within this Note 1, for the disclosure of the effects of amounts reclassified out of accumulated other comprehensive income.

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Borrowed Funds and Debentures - Textual (Details) (USD $)	1 Months Ended	12 Months Ended				12 Months Ended
	Mar. 31, 2000	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2000 Junior Subordinated Debt Securities	Dec. 31, 2013 Minimum Federal Home Loan Bank of Boston borrowings	Dec. 31, 2013 Maximum Federal Home Loan Bank of Boston borrowings	Dec. 31, 2013 Line of credit FHLB	Dec. 31, 2013 Line of credit Federal Reserve Bank of Boston	Mar. 31, 2000 Enterprise (MA) Capital Trust I
Debt Instrument [Line Items]
FHLB advances, due in less than twelve months			$ 1,700,000
FHLB advances, due in less than twelve months, weighted average rate			0.66%
FHLB overnight borrowings			34,800,000
FHLB overnight borrowings, weighted average rate			0.28%
Term for FHLB borrowings						1 year	2 years
Maximum amount of FHLB borrowings outstanding during period		4,800,000	57,400,000	26,500,000
Maximum amount outstanding during period of repurchase agreements for securities sold		763,000
Remaining borrowing capacity at FHLB								300,000,000
Remaining borrowing capacity at FRB									60,000,000
Trust preferred securities, value										10,500,000
Trust preferred securities, stated interest rate										10.875%
Proceeds from capital contribution	325,000
Junior subordinated debentures	$ 10,825,000	$ 10,825,000	$ 10,825,000	$ 10,825,000
Junior Subordinated Debt Securities, stated interest rate					10.875%

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Investments (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Fair Value	$ 215,369,000		$ 184,464,000
Securities pledged as collateral	202,200,000		173,600,000
Callable debt securities, amortized cost	46,700,000
Callable debt securities, fair value	47,700,000
Total fixed income securities
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Amortized cost	202,192,000		169,018,000
Unrealized gains	2,146,000		4,843,000
Unrealized losses	2,137,000		65,000
Fair Value	202,201,000		173,796,000
Federal agency obligations
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Amortized cost	55,440,000	[1]	65,247,000	[1]
Unrealized gains	146,000	[1]	438,000	[1]
Unrealized losses	43,000	[1]	0	[1]
Fair Value	55,543,000	[1]	65,685,000	[1]
Federal Agency mortgage backed securities (MBS)
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Amortized cost	80,997,000	[1]	48,429,000	[1]
Unrealized gains	367,000	[1]	1,287,000	[1]
Unrealized losses	1,714,000	[1]	42,000	[1]
Fair Value	79,650,000	[1]	49,674,000	[1]
Collateralized Mortgage Obligations (CMOs)
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Fair Value	17,400,000		23,600,000
Municipal securities
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Amortized cost	60,675,000		53,437,000
Unrealized gains	1,604,000		3,103,000
Unrealized losses	325,000		17,000
Fair Value	61,954,000		56,523,000
Tax exempt interest earned on municipal securities	2,100,000		1,900,000		1,700,000
Corporate bonds
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Amortized cost	5,080,000		1,905,000
Unrealized gains	29,000		15,000
Unrealized losses	55,000		6,000
Fair Value	5,054,000		1,914,000
Equity investments
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Amortized cost	9,960,000		9,080,000
Unrealized gains	3,228,000		1,622,000
Unrealized losses	20,000		34,000
Fair Value	13,168,000		10,668,000
Percent of portfolio invested in financial services	14.00%
Total available for sale securities, at fair value
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Amortized cost	212,152,000		178,098,000
Unrealized gains	5,374,000		6,465,000
Unrealized losses	2,157,000		99,000
Fair Value	$ 215,369,000		$ 184,464,000

[1] These categories may include investments issued or guaranteed by government sponsored enterprises such as Fannie Mae (FNMA), Freddie Mac (FHLMC), Ginnie Mae (GNMA), Federal Farm Credit Bank (FFCB), or one of several Federal Home Loan Banks (FHLBs). All agency MBS/CMO investments owned by the Company are backed by residential mortgages.

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Allowance For Loan Losses (Tables)

12 Months Ended

Dec. 31, 2013

Receivables [Abstract]

Financing Receivable Credit Quality Indicators

The following tables present the credit risk profile by internally assigned risk rating category at the periods indicated.

	December 31, 2013
(Dollars in thousands)	Adversely Classified						Not Adversely Classified		Gross Loans
	Substandard		Doubtful		Loss
Commercial real estate	$	13,545	$	1,266	$	—	$	805,488	$	820,299
Commercial and industrial	7,908		51		236		348,861		357,056
Commercial construction	3,358		—		—		129,149		132,507
Residential	1,012		—		—		131,709		132,721
Home Equity	500		—		—		73,854		74,354
Consumer	40		—		—		8,603		8,643
Total gross loans	$	26,363	$	1,317	$	236	$	1,497,664	$	1,525,580

	December 31, 2012
(Dollars in thousands)	Adversely Classified						Not Adversely Classified		Gross Loans
	Substandard		Doubtful		Loss
Commercial real estate	$	21,999	$	—	$	—	$	688,266	$	710,265
Commercial and industrial	5,993		1,460		48		321,078		328,579
Commercial construction	2,986		—		—		118,381		121,367
Residential	1,254		—		—		119,024		120,278
Home Equity	661		—		—		74,987		75,648
Consumer	34		—		—		4,877		4,911
Total gross loans	$	32,927	$	1,460	$	48	$	1,326,613	$	1,361,048

Past Due Financing Receivables

The following table presents an age analysis of past due loans as of December 31, 2013.

(Dollars in thousands)	Loans 30-59 Days Past Due		Loans 60-89 Days Past Due		Non-accrual Loans		Total Past Due Loans		Current Loans		Gross Loans
Commercial real estate	$	1,142	$	1,575	$	10,561	$	13,278	$	807,021	$	820,299
Commercial and industrial	680		908		5,743		7,331		349,725		357,056
Commercial construction	196		—		1,118		1,314		131,193		132,507
Residential	1,110		127		633		1,870		130,851		132,721
Home Equity	211		10		281		502		73,852		74,354
Consumer	106		18		10		134		8,509		8,643
Total gross loans	$	3,445	$	2,638	$	18,346	$	24,429	$	1,501,151	$	1,525,580

The following table presents an age analysis of past due loans as of December 31, 2012.

(Dollars in thousands)	Loans 30-59 Days Past Due		Loans 60-89 Days Past Due		Non-accrual Loans		Total Past Due Loans		Current Loans		Gross Loans
Commercial real estate	$	1,560	$	551	$	12,608	$	14,719	$	695,546	$	710,265
Commercial and industrial	472		55		6,993		7,520		321,059		328,579
Commercial construction	—		—		743		743		120,624		121,367
Residential	42		558		862		1,462		118,816		120,278
Home Equity	73		9		390		472		75,176		75,648
Consumer	42		11		5		58		4,853		4,911
Total gross loans	$	2,189	$	1,184	$	21,601	$	24,974	$	1,336,074	$	1,361,048

Schedule of Interest Lost on Nonaccrual Loans

The reduction in interest income for the years ended December 31, associated with non-accruing loans is summarized as follows:

(Dollars in thousands)	2013		2012		2011
Income in accordance with original loan terms	$	1,171	$	1,490	$	1,545
Less income recognized	680		380		140
Reduction in interest income	$	491	$	1,110	$	1,405

Impaired Financing Receivables

The following table sets forth the recorded investment in impaired loans and the related specific allowance allocated as of December 31, 2013.

(Dollars in thousands)	Unpaid contractual principal balance		Total recorded investment in impaired loans		Recorded investment with no allowance		Recorded investment with allowance		Related specific allowance
Commercial real estate	$	17,420	$	15,139	$	12,105	$	3,034	$	507
Commercial and industrial	12,220		10,579		4,902		5,677		2,901
Commercial construction	3,464		3,358		1,426		1,932		830
Residential	673		619		365		254		107
Home Equity	110		108		—		108		31
Consumer	23		23		—		23		23
Total	$	33,910	$	29,826	$	18,798	$	11,028	$	4,399

The following table sets forth the recorded investment in impaired loans and the related specific allowance allocated as of December 31, 2012.

(Dollars in thousands)	Unpaid contractual principal balance		Total recorded investment in impaired loans		Recorded investment with no allowance		Recorded investment with allowance		Related specific allowance
Commercial real estate	$	24,760	$	22,859	$	18,735	$	4,124	$	1,041
Commercial and industrial	12,184		10,831		6,016		4,815		2,186
Commercial construction	3,091		2,932		995		1,937		753
Residential	687		648		390		258		65
Home Equity	110		109		—		109		87
Consumer	14		14		—		14		14
Total	$	40,846	$	37,393	$	26,136	$	11,257	$	4,146

The following table presents the average recorded investment in impaired loans and the related interest recognized during the year ends indicated.

	December 31, 2013				December 31, 2012				December 31, 2011
(Dollars in thousands)	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
Commercial real estate	$	17,673	$	237	$	23,629	$	560	$	27,404	$	698
Commercial and industrial	9,444		92		9,846		116		9,571		61
Commercial construction	3,227		77		2,377		65		3,880		83
Residential	745		9		753		11		621		2
Home Equity	120		—		54		—		—		2
Consumer	18		2		16		1		19		3
Total	$	31,227	$	417	$	36,675	$	753	$	41,495	$	849

Troubled Debt Restructurings on Financing Receivables

The following tables present certain information regarding loan modifications classified as troubled debt restructures.

Troubled debt restructure agreements entered into during the year endedDecember 31, 2013.

(Dollars in thousands)	Number of restructurings	Pre-modification outstanding recorded investment		Post-modification outstanding recorded investment
Commercial real estate	2	$	724	$	673
Commercial and industrial	5	1,903		1,818
Commercial construction	1	769		769
Residential	—	—		—
Home Equity	—	—		—
Consumer	1	4		4
Total	9	$	3,400	$	3,264

Loans modified as troubled debt restructuring within the previous twelve months for which there was a subsequent payment default during the year endedDecember 31, 2013.

(Dollars in thousands)	Number of TDRs that defaulted	Post-modification outstanding recorded investment
Commercial real estate	—	$	—
Commercial and industrial	1	62
Commercial construction	—	—
Residential	—	—
Home Equity	—	—
Consumer	—	—
Total	1	$	62

Troubled debt restructure agreements entered into during the year endedDecember 31, 2012.

(Dollars in thousands)	Number of restructurings	Pre-modification outstanding recorded investment		Post-modification outstanding recorded investment
Commercial real estate	3	$	423	$	388
Commercial and industrial	7	2,980		2,975
Commercial construction	3	802		746
Residential	2	386		383
Home Equity	—	—		—
Consumer	—	—		—
Total	15	$	4,591	$	4,492

Loans modified as troubled debt restructuring within the previous twelve months for which there was a subsequent payment default during the year endedDecember 31, 2012.

(Dollars in thousands)	Number of TDRs that defaulted	Post-modification outstanding recorded investment
Commercial real estate	—	$	—
Commercial and industrial	2	10
Commercial construction	—	—
Residential	1	125
Home Equity	—	—
Consumer	—	—
Total	3	$	135

Allowance for Credit Losses on Financing Receivables

Changes in the allowance for loan losses for the years ended December 31, are summarized as follows:

(Dollars in thousands)	2013		2012		2011
Balance at beginning of year	$	24,254	$	23,160	$	19,415
Provision charged to operations	3,279		2,750		5,197
Loan recoveries	415		519		294
Less: Loans charged-off	981		2,175		1,746
Balance at end of year	$	26,967	$	24,254	$	23,160

Changes in the allowance for loan losses by segment for the year ended December 31, 2013, are presented below:

(Dollars in thousands)	Cmml Real Estate		Cmml and Industrial		Cmml Constr			Resid. Mortgage		Home Equity			Cnsmr		Total
Beg. Balance, 12/31/12	$	11,793	$	7,297	$	3,456		$	854	$	728		$	126	$	24,254
Provision	1,491		1,658		(41		)	111		(52		)	112		3,279
Recoveries	96		80		78			128		21			12		415
Less: Charge offs	206		670		—			36		44			25		981
Ending Balance, 12/31/13	$	13,174	$	8,365	$	3,493		$	1,057	$	653		$	225	$	26,967
Ending allowance balance allotted to:
Loans individually evaluated for impairment	$	507	$	2,901	$	830		$	107	$	31		$	23	$	4,399
Loans collectively evaluated for impairment	$	12,667	$	5,464	$	2,663		$	950	$	622		$	202	$	22,568

Changes in the allowance for loan losses by segment for the year ended December 31, 2012, are presented below:

(Dollars in thousands)	Cmml Real Estate		Cmml and Industrial		Cmml Constr		Resid. Mortgage		Home Equity		Cnsmr		Total
Beg. Balance, 12/31/11	$	10,855	$	7,568	$	3,013	$	995	$	615	$	114	$	23,160
Provision	1,185		656		597		34		251		27		2,750
Recoveries	29		461		2		10		2		15		519
Less: Charge offs	276		1,388		156		185		140		30		2,175
Ending Balance, 12/31/12	$	11,793	$	7,297	$	3,456	$	854	$	728	$	126	$	24,254
Ending allowance balance allotted to:
Loans individually evaluated for impairment	$	1,041	$	2,186	$	753	$	65	$	87	$	14	$	4,146
Loans collectively evaluated for impairment	$	10,752	$	5,111	$	2,703	$	789	$	641	$	112	$	20,108

Financing Receivables by Evaluation Method for Impairment

The balances of loans as of December 31, 2013 by segment and evaluation method are summarized as follows:

(Dollars in thousands)	Loans individually evaluated for impairment		Loans collectively evaluated for impairment			Total Loans
Commercial real estate	$	15,139	$	805,160		$	820,299
Commercial and industrial	10,579		346,477			357,056
Commercial construction	3,358		129,149			132,507
Residential	619		132,102			132,721
Home Equity	108		74,246			74,354
Consumer	23		8,620			8,643
Deferred Fees	—		(1,524		)	(1,524		)
Total loans	$	29,826	$	1,494,230		$	1,524,056

The balances of loans as of December 31, 2012 by segment and evaluation method are summarized as follows:

(Dollars in thousands)	Loans individually evaluated for impairment		Loans collectively evaluated for impairment			Total Loans
Commercial real estate	$	22,859	$	687,406		$	710,265
Commercial and industrial	10,831		317,748			328,579
Commercial construction	2,932		118,435			121,367
Residential	648		119,630			120,278
Home Equity	109		75,539			75,648
Consumer	14		4,897			4,911
Deferred Fees	—		(1,393		)	(1,393		)
Total loans	$	37,393	$	1,322,262		$	1,359,655

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Loans (Tables)

12 Months Ended

Dec. 31, 2013

Receivables [Abstract]

Schedule of Loans by Loan Classification

Major classifications of loans at the periods indicated, are as follows:

(Dollars in thousands)	December 31, 2013			December 31, 2012
Real estate:
Commercial real estate	$	820,299		$	710,265
Commercial construction	132,507			121,367
Residential mortgages	132,721			120,278
Total real estate	1,085,527			951,910
Commercial and industrial	357,056			328,579
Home equity	74,354			75,648
Consumer	8,643			4,911
Gross loans	1,525,580			1,361,048
Deferred loan origination fees, net	(1,524		)	(1,393		)
Total loans	1,524,056			1,359,655
Allowance for loan losses	(26,967		)	(24,254		)
Net loans	$	1,497,089		$	1,335,401

Schedule of Loans Pledged as Collateral

Loans designated as qualified collateral and pledged to the FHLB for borrowing capacity for the periods indicated are summarized below:

(Dollars in thousands)	December 31, 2013		December 31, 2012
Commercial real estate	$	320,908	$	216,080
Residential mortgages	97,626		94,552
Home equity	17,548		18,907
Total loans pledged to FHLB	$	436,082	$	329,539

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Allowance For Loan Losses - Allowance for Loan Losses (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Loan growth excluding loans purchased									$ 164,400,000	$ 87,800,000
Net charge-offs on loans									566,000
Allowance for loan losses to total loans ratio	1.77%				1.78%				1.77%	1.78%
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				24,254,000				23,160,000	24,254,000	23,160,000	19,415,000
Provision for loan losses	1,379,000	583,000	534,000	783,000	600,000	800,000	1,050,000	300,000	3,279,000	2,750,000	5,197,000
Recoveries									415,000	519,000	294,000
Less: Charge offs									981,000	2,175,000	1,746,000
Ending Balance	26,967,000				24,254,000				26,967,000	24,254,000	23,160,000
Allotted to loans individually evaluated for impairment	4,399,000				4,146,000				4,399,000	4,146,000
Allotted to loans collectively evaluated for impairment	22,568,000				20,108,000				22,568,000	20,108,000
Loans individually evaluated for impairment	29,826,000				37,393,000				29,826,000	37,393,000
Loans collectively evaluated for impairment	1,494,230,000				1,322,262,000				1,494,230,000	1,322,262,000
Deferred loan origination fees, net	(1,524,000)				(1,393,000)				(1,524,000)	(1,393,000)
Gross loans	1,525,580,000				1,361,048,000				1,525,580,000	1,361,048,000
Total loans	1,524,056,000				1,359,655,000				1,524,056,000	1,359,655,000
Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				11,793,000				10,855,000	11,793,000	10,855,000
Provision for loan losses									1,491,000	1,185,000
Recoveries									96,000	29,000
Less: Charge offs									206,000	276,000
Ending Balance	13,174,000				11,793,000				13,174,000	11,793,000
Allotted to loans individually evaluated for impairment	507,000				1,041,000				507,000	1,041,000
Allotted to loans collectively evaluated for impairment	12,667,000				10,752,000				12,667,000	10,752,000
Loans individually evaluated for impairment	15,139,000				22,859,000				15,139,000	22,859,000
Loans collectively evaluated for impairment	805,160,000				687,406,000				805,160,000	687,406,000
Gross loans	820,299,000				710,265,000				820,299,000	710,265,000
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				7,297,000				7,568,000	7,297,000	7,568,000
Provision for loan losses									1,658,000	656,000
Recoveries									80,000	461,000
Less: Charge offs									670,000	1,388,000
Ending Balance	8,365,000				7,297,000				8,365,000	7,297,000
Allotted to loans individually evaluated for impairment	2,901,000				2,186,000				2,901,000	2,186,000
Allotted to loans collectively evaluated for impairment	5,464,000				5,111,000				5,464,000	5,111,000
Loans individually evaluated for impairment	10,579,000				10,831,000				10,579,000	10,831,000
Loans collectively evaluated for impairment	346,477,000				317,748,000				346,477,000	317,748,000
Gross loans	357,056,000				328,579,000				357,056,000	328,579,000
Commercial construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				3,456,000				3,013,000	3,456,000	3,013,000
Provision for loan losses									(41,000)	597,000
Recoveries									78,000	2,000
Less: Charge offs									0	156,000
Ending Balance	3,493,000				3,456,000				3,493,000	3,456,000
Allotted to loans individually evaluated for impairment	830,000				753,000				830,000	753,000
Allotted to loans collectively evaluated for impairment	2,663,000				2,703,000				2,663,000	2,703,000
Loans individually evaluated for impairment	3,358,000				2,932,000				3,358,000	2,932,000
Loans collectively evaluated for impairment	129,149,000				118,435,000				129,149,000	118,435,000
Gross loans	132,507,000				121,367,000				132,507,000	121,367,000
Residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				854,000				995,000	854,000	995,000
Provision for loan losses									111,000	34,000
Recoveries									128,000	10,000
Less: Charge offs									36,000	185,000
Ending Balance	1,057,000				854,000				1,057,000	854,000
Allotted to loans individually evaluated for impairment	107,000				65,000				107,000	65,000
Allotted to loans collectively evaluated for impairment	950,000				789,000				950,000	789,000
Loans individually evaluated for impairment	619,000				648,000				619,000	648,000
Loans collectively evaluated for impairment	132,102,000				119,630,000				132,102,000	119,630,000
Gross loans	132,721,000				120,278,000				132,721,000	120,278,000
Home Equity
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				728,000				615,000	728,000	615,000
Provision for loan losses									(52,000)	251,000
Recoveries									21,000	2,000
Less: Charge offs									44,000	140,000
Ending Balance	653,000				728,000				653,000	728,000
Allotted to loans individually evaluated for impairment	31,000				87,000				31,000	87,000
Allotted to loans collectively evaluated for impairment	622,000				641,000				622,000	641,000
Loans individually evaluated for impairment	108,000				109,000				108,000	109,000
Loans collectively evaluated for impairment	74,246,000				75,539,000				74,246,000	75,539,000
Gross loans	74,354,000				75,648,000				74,354,000	75,648,000
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance				126,000				114,000	126,000	114,000
Provision for loan losses									112,000	27,000
Recoveries									12,000	15,000
Less: Charge offs									25,000	30,000
Ending Balance	225,000				126,000				225,000	126,000
Allotted to loans individually evaluated for impairment	23,000				14,000				23,000	14,000
Allotted to loans collectively evaluated for impairment	202,000				112,000				202,000	112,000
Loans individually evaluated for impairment	23,000				14,000				23,000	14,000
Loans collectively evaluated for impairment	8,620,000				4,897,000				8,620,000	4,897,000
Gross loans	8,643,000				4,911,000				8,643,000	4,911,000
Purchased Loans [Member] | Residential
Allowance for Loan and Lease Losses [Roll Forward]
Gross loans	$ 14,100,000				$ 26,400,000				$ 14,100,000	$ 26,400,000

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Investments - Continuous Loss Position (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013 investments	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Number of securities in loss position	73
Investments Temporarily Impaired, Less than 12 months, Fair Value	$ 86,220	$ 13,185
Investments Temporarily Impaired, Less than 12 months, Unrealized Losses	1,566	67
Investments Temporarily Impaired, 12 months or longer, Fair Value	9,520	453
Investments Temporarily Impaired,12 months or longer, Unrealized Losses	591	32
Investments Temporarily Impaired, Fair Value	95,740	13,638
Investments Temporarily Impaired, Unrealized Losses	2,157	99
Federal agency obligations
Schedule of Available-for-sale Securities [Line Items]
Investments Temporarily Impaired, Less than 12 months, Fair Value	14,026
Investments Temporarily Impaired, Less than 12 months, Unrealized Losses	43
Investments Temporarily Impaired, 12 months or longer, Fair Value	0
Investments Temporarily Impaired,12 months or longer, Unrealized Losses	0
Investments Temporarily Impaired, Fair Value	14,026
Investments Temporarily Impaired, Unrealized Losses	43
Federal Agency mortgage backed securities (MBS)
Schedule of Available-for-sale Securities [Line Items]
Investments Temporarily Impaired, Less than 12 months, Fair Value	56,554	9,954
Investments Temporarily Impaired, Less than 12 months, Unrealized Losses	1,176	42
Investments Temporarily Impaired, 12 months or longer, Fair Value	8,457	0
Investments Temporarily Impaired,12 months or longer, Unrealized Losses	538	0
Investments Temporarily Impaired, Fair Value	65,011	9,954
Investments Temporarily Impaired, Unrealized Losses	1,714	42
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Investments Temporarily Impaired, Less than 12 months, Fair Value	12,791	1,996
Investments Temporarily Impaired, Less than 12 months, Unrealized Losses	292	17
Investments Temporarily Impaired, 12 months or longer, Fair Value	609	0
Investments Temporarily Impaired,12 months or longer, Unrealized Losses	33	0
Investments Temporarily Impaired, Fair Value	13,400	1,996
Investments Temporarily Impaired, Unrealized Losses	325	17
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Investments Temporarily Impaired, Less than 12 months, Fair Value	2,100	1,063
Investments Temporarily Impaired, Less than 12 months, Unrealized Losses	39	6
Investments Temporarily Impaired, 12 months or longer, Fair Value	433	0
Investments Temporarily Impaired,12 months or longer, Unrealized Losses	16	0
Investments Temporarily Impaired, Fair Value	2,533	1,063
Investments Temporarily Impaired, Unrealized Losses	55	6
Equity investments
Schedule of Available-for-sale Securities [Line Items]
Investments Temporarily Impaired, Less than 12 months, Fair Value	749	172
Investments Temporarily Impaired, Less than 12 months, Unrealized Losses	16	2
Investments Temporarily Impaired, 12 months or longer, Fair Value	21	453
Investments Temporarily Impaired,12 months or longer, Unrealized Losses	4	32
Investments Temporarily Impaired, Fair Value	770	625
Investments Temporarily Impaired, Unrealized Losses	$ 20	$ 34

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Premises and Equipment (Tables)

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Premises and Equipment

Premises and equipment at December 31 are summarized as follows:

(Dollars in thousands)	2013			2012
Land	$	4,594		$	4,594
Buildings, renovations and leasehold improvements	30,516			28,283
Computer software and equipment	8,088			7,560
Furniture, fixtures and equipment	14,239			12,254
Total premises and equipment, before accumulated depreciation	57,437			52,691
Less accumulated depreciation	(27,546		)	(25,485		)
Total premises and equipment, net of accumulated depreciation	$	29,891		$	27,206

Schedule of Future Minimum Rental Payments for Operating Leases

At December 31, 2013, minimum lease payments for these operating leases were as follows:

(Dollars in thousands)
Payable in:
2014	$	1,087
2015	882
2016	911
2017	908
2018	747
Thereafter	3,842
Total minimum lease payments	$	8,377

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Deposits (Tables)

12 Months Ended

Dec. 31, 2013

Deposits [Abstract]

Schedule of Deposit Liabilities

Deposits at December 31 are summarized as follows:

(Dollars in thousands)	2013		2012
Non-interest demand deposits	$	435,465	$	386,643
Interest bearing checking	222,837		210,564
Savings	150,215		154,680
Money market	575,825		491,942
Certificates of deposit less than $100,000	95,530		106,904
Certificates of deposit of $100,000 or more	104,553		121,262
Total non-brokered deposits (1)	1,584,425		1,471,995
Brokered deposits (2)	51,567		3,032
Total deposits	$	1,635,992	$	1,475,027

(1) Includes reciprocal money market deposits and CDs received from participating banks in nationwide networks as a result of our customers electing to participate in programs to obtain full FDIC insurance. Essentially, the equivalent of the original deposit comes back to the Company as non-brokered deposits within the appropriate category under total deposits on the balance sheet.

(2) Primarily brokered CDs under $100,000.

Schedule of Maturities of Time Deposits

The following table shows the scheduled maturities of certificates of deposit (including brokered deposits with average maturities of 5 years) with balances less than $100,000 and greater than $100,000 at December 31, 2013:

(Dollars in thousands)	Less than $100,000		$100,000 and Greater		Total
Due in less than twelve months	$	75,065	$	83,296	$	158,361
Due in over one year through two years	14,137		12,806		26,943
Due in over two years through three years	5,213		9,085		14,298
Due in over three years through four years	17,954		1,399		19,353
Due in over four years through five years	16,577		—		16,577
Due in over five years	16,118		—		16,118
Total certificates of deposit	$	145,064	$	106,586	$	251,650

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 13,529	$ 12,375	$ 10,944
Adjustments to reconcile net income to net cash
Provision for loan losses	3,279	2,750	5,197
Depreciation and amortization	5,015	4,485	4,125
Stock-based compensation expense	1,662	1,271	1,035
Mortgage loans originated for sale	(35,284)	(54,248)	(35,717)
Proceeds from mortgage loans sold	43,378	51,741	37,751
Net gains on sales of loans	(792)	(989)	(687)
Net gains on sales of OREO	(121)	(87)	0
Net gains on sales of investment	(1,239)	(236)	(791)
Other-than-temporary-impairment of investments	0	0	3
Income on bank-owned life insurance, net	(459)	(506)	(548)
OREO fair value adjustment	23	0	0
Changes in:
Accrued interest receivable	(358)	(7)	(289)
Prepaid expenses and other assets	6,592	(3,207)	(824)
Deferred income taxes	(183)	(625)	(2,039)
Accrued expenses and other liabilities	780	1,387	2,456
Accrued interest payable	(38)	(148)	(163)
Net cash provided by operating activities	35,784	13,956	20,453
Cash flows from investing activities:
Proceeds from sales of investment securities available for sale	9,564	3,545	11,344
Net proceeds (purchase) from FHLB capital stock	(64)	480	0
Proceeds from maturities, calls and pay-downs of investment securities	27,923	37,283	55,746
Purchase of investment securities	(70,663)	(83,964)	(63,085)
Net increase in loans	(165,135)	(116,458)	(111,162)
Additions to premises and equipment, net	(6,580)	(4,330)	(5,433)
Proceeds from OREO sales and payments	652	1,852	600
Purchase of OREO	0	(245)	0
Net cash used in investing activities	(204,303)	(161,837)	(111,990)
Cash flows from financing activities:
Net increase in deposits	160,965	141,869	89,087
Net increase (decrease) in borrowed funds	9,994	22,046	(11,047)
Cash dividends paid	(4,535)	(4,215)	(3,945)
Proceeds from issuance of common stock	1,239	1,274	1,254
Proceeds from exercise of stock options	1,829	509	309
Tax benefit from exercise of stock options	25	2	4
Net cash used in financing activities	169,517	161,485	75,662
Net increase (decrease) in cash and cash equivalents	998	13,604	(15,875)
Cash and cash equivalents, beginning of year	52,735	39,131	55,006
Cash and cash equivalents, end of year	53,733	52,735	39,131
Supplemental financial data:
Cash Paid For: Interest	5,369	6,643	7,542
Cash Paid For: Income taxes	7,342	6,611	7,112
Supplemental schedule of non-cash activity:
Purchase of investment securities not yet settled	703	0	0
Transfer from loans to other real estate owned	168	575	1,220
Capital expenditures incurred not yet paid	$ 0	$ 0	$ 710

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Borrowed Funds and Debentures (Tables)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Schedule of Borrowed Funds and Debentures

Borrowed funds and debentures outstanding at December 31 are summarized as follows:

	2013				2012				2011
(Dollars in thousands)	Amount		Average Rate		Amount		Average Rate		Amount		Average Rate
Borrowed funds	36,534		0.30	%	26,540		0.44	%	4,494		1.83	%
Junior subordinated debentures	10,825		10.88	%	10,825		10.88	%	10,825		10.88	%
Total borrowed funds and debentures	$	47,359	2.72	%	$	37,365	3.46	%	$	15,319	8.22	%

Schedule of Average Balances and Rates for Securities Sold Under Agreements to Repurchase and Borrowed Funds

The following table summarizes the average balance and average cost of borrowed funds for the years ended December 31,

	Year ended December 31,
	2013				2012				2011
(Dollars in thousands)	Average Balance		Average Cost		Average Balance		Average Cost		Average Balance		Average Cost
FHLB advances	$	24,385	0.39	%	$	3,552	1.50	%	$	4,684	1.82	%
Other borrowings	14		0.46	%	89		0.27	%	170		0.25	%
Repurchase agreements	—		—	%	—		—	%	373		0.31	%
Total borrowed funds	$	24,399	0.39	%	$	3,641	1.47	%	$	5,227	1.66	%

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Parent Company Only Financial Statements - Balance Sheet (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Mar. 31, 2000
Assets
Cash	$ 53,733	$ 52,735	$ 39,131	$ 55,006
Total assets	1,849,925	1,665,726
Liabilities
Junior subordinated debentures	10,825	10,825	10,825		10,825
Accrued interest payable	565	603
Other liabilities	14,675	13,182
Total liabilities	1,698,591	1,526,177
Stockholders' Equity
Preferred stock, $0.01 par value per share; 1,000,000 shares authorized; no shares issued	0	0
Common stock $0.01 par value per share; 20,000,000 shares authorized; 9,992,560 issued and outstanding at December 31, 2013 (including 170,365 shares of unvested participating restricted awards) and 9,676,477 shares issued and outstanding at December 31, 2012 (including 154,186 shares of unvested participating restricted awards)	100	97
Additional paid-in capital	52,936	48,194
Retained earnings	96,153	87,159
Accumulated other comprehensive income	2,145	4,099
Total stockholders’ equity	151,334	139,549	127,448	116,673
Total liabilities and stockholders’ equity	1,849,925	1,665,726
Parent
Assets
Cash	729	542	401	181
Investment in subsidiaries	161,580	149,963
Other assets	233	242
Total assets	162,542	150,747
Liabilities
Junior subordinated debentures	10,825	10,825
Accrued interest payable	370	370
Other liabilities	13	3
Total liabilities	11,208	11,198
Stockholders' Equity
Preferred stock, $0.01 par value per share; 1,000,000 shares authorized; no shares issued	0	0
Common stock $0.01 par value per share; 20,000,000 shares authorized; 9,992,560 issued and outstanding at December 31, 2013 (including 170,365 shares of unvested participating restricted awards) and 9,676,477 shares issued and outstanding at December 31, 2012 (including 154,186 shares of unvested participating restricted awards)	100	97
Additional paid-in capital	52,936	48,194
Retained earnings	96,153	87,159
Accumulated other comprehensive income	2,145	4,099
Total stockholders’ equity	151,334	139,549
Total liabilities and stockholders’ equity	$ 162,542	$ 150,747

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Parent Company Only Financial Statements (Tables)

12 Months Ended

Dec. 31, 2013

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Schedule of Condensed Balance Sheet

Balance Sheets

	December 31,
(Dollars in thousands)	2013		2012
Assets
Cash	$	729	$	542
Investment in subsidiaries	161,580		149,963
Other assets	233		242
Total assets	$	162,542	$	150,747
Liabilities and Stockholders’ Equity
Liabilities
Junior subordinated debentures	$	10,825	$	10,825
Accrued interest payable	370		370
Other liabilities	13		3
Total liabilities	11,208		11,198
Stockholders' equity:
Preferred stock, $0.01 par value per share; 1,000,000 shares authorized; no shares issued	—		—
Common stock $0.01 par value per share; 20,000,000 shares authorized; 9,992,560 issued and outstanding at December 31, 2013 (including 170,365 shares of unvested participating restricted awards) and 9,676,477 shares issued and outstanding at December 31, 2012 (including 154,186 shares of unvested participating restricted awards)	100		97
Additional paid-in capital	52,936		48,194
Retained earnings	96,153		87,159
Accumulated other comprehensive income	2,145		4,099
Total stockholders’ equity	$	151,334	$	139,549
Total liabilities and stockholders’ equity	$	162,542	$	150,747

Schedule of Condensed Income Statement

Statements of Income

	For the years ended December 31,
(Dollars in thousands)	2013			2012			2011
Equity in undistributed net income of subsidiaries	$	13,571		$	10,910		$	9,356
Dividends distributed by subsidiaries	950			2,350			3,000
Total income	14,521			13,260			12,356
Interest expense	1,177			1,177			1,177
Other operating expenses	225			171			225
Total operating expenses	1,402			1,348			1,402
Income before income taxes	13,119			11,912			10,954
Provision for (benefit from) income taxes	(410		)	(463		)	10
Net income	$	13,529		$	12,375		$	10,944

Schedule of Condensed Cash Flow Statement

Parent Company Only Financial Statements

Statements of Cash Flows

	For the years ended December 31,
(Dollars in thousands)	2013			2012			2011
Cash flows from operating activities:
Net income	$	13,529		$	12,375		$	10,944
Adjustments to reconcile net income to net cash
Equity in undistributed net income of subsidiaries	(13,571		)	(10,910		)	(9,356		)
Payment from subsidiary bank for stock compensation expense	1,652			1,253			1,003
Changes in:
Other assets	9			(145		)	5
Other liabilities	10			(2		)	2
Net cash provided by operating activities	1,629			2,571			2,598
Cash flows from financing activities:
Cash dividends paid	(4,535		)	(4,215		)	(3,945		)
Proceeds from issuance of common stock	1,239			1,274			1,254
Proceeds from exercise of stock options	1,829			509			309
Tax benefit from exercise of stock options	25			2			4
Net cash used in financing activities	(1,442		)	(2,430		)	(2,378		)
Net increase in cash and cash equivalents	187			141			220
Cash and cash equivalents, beginning of year	542			401			181
Cash and cash equivalents, end of year	$	729		$	542		$	401

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Allowance For Loan Losses - Impaired Loans (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]
Total accruing impaired loans	$ 11,900,000	$ 16,600,000
Impaired non-accrual loans	17,900,000	20,800,000
Interest income that was not recognized on loans that were deem impaired	445,000	1,100,000	847,000
Additional funding commitments on impaired loans	457,000
Impaired Financing Receivable, Recorded Investment [Abstract]
Unpaid contractual principal balance	33,910,000	40,846,000
Total recorded investment in impaired loans	29,826,000	37,393,000
Recorded investment with no allowance	18,798,000	26,136,000
Recorded investment with allowance	11,028,000	11,257,000
Related allowance	4,399,000	4,146,000
Average recorded investment	31,227,000	36,675,000	41,495,000
Interest income recognized	417,000	753,000	849,000
Commercial real estate
Financing Receivable, Impaired [Line Items]
Increase (decrease) in impaired loans	(7,700,000)
Impaired Financing Receivable, Recorded Investment [Abstract]
Unpaid contractual principal balance	17,420,000	24,760,000
Total recorded investment in impaired loans	15,139,000	22,859,000
Recorded investment with no allowance	12,105,000	18,735,000
Recorded investment with allowance	3,034,000	4,124,000
Related allowance	507,000	1,041,000
Average recorded investment	17,673,000	23,629,000	27,404,000
Interest income recognized	237,000	560,000	698,000
Commercial and industrial
Impaired Financing Receivable, Recorded Investment [Abstract]
Unpaid contractual principal balance	12,220,000	12,184,000
Total recorded investment in impaired loans	10,579,000	10,831,000
Recorded investment with no allowance	4,902,000	6,016,000
Recorded investment with allowance	5,677,000	4,815,000
Related allowance	2,901,000	2,186,000
Average recorded investment	9,444,000	9,846,000	9,571,000
Interest income recognized	92,000	116,000	61,000
Commercial construction
Impaired Financing Receivable, Recorded Investment [Abstract]
Unpaid contractual principal balance	3,464,000	3,091,000
Total recorded investment in impaired loans	3,358,000	2,932,000
Recorded investment with no allowance	1,426,000	995,000
Recorded investment with allowance	1,932,000	1,937,000
Related allowance	830,000	753,000
Average recorded investment	3,227,000	2,377,000	3,880,000
Interest income recognized	77,000	65,000	83,000
Residential
Impaired Financing Receivable, Recorded Investment [Abstract]
Unpaid contractual principal balance	673,000	687,000
Total recorded investment in impaired loans	619,000	648,000
Recorded investment with no allowance	365,000	390,000
Recorded investment with allowance	254,000	258,000
Related allowance	107,000	65,000
Average recorded investment	745,000	753,000	621,000
Interest income recognized	9,000	11,000	2,000
Home Equity
Impaired Financing Receivable, Recorded Investment [Abstract]
Unpaid contractual principal balance	110,000	110,000
Total recorded investment in impaired loans	108,000	109,000
Recorded investment with no allowance	0	0
Recorded investment with allowance	108,000	109,000
Related allowance	31,000	87,000
Average recorded investment	120,000	54,000	0
Interest income recognized	0	0	2,000
Consumer
Impaired Financing Receivable, Recorded Investment [Abstract]
Unpaid contractual principal balance	23,000	14,000
Total recorded investment in impaired loans	23,000	14,000
Recorded investment with no allowance	0	0
Recorded investment with allowance	23,000	14,000
Related allowance	23,000	14,000
Average recorded investment	18,000	16,000	19,000
Interest income recognized	$ 2,000	$ 1,000	$ 3,000

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Stock-Based Compensation Plans - Summary of Options Granted (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted	47,684	68,750	83,075
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	48.00%	50.00%	45.00%
Market price on date of grant	$ 16.61	$ 16.25	$ 14.88
Per share weighted average fair value	$ 6.66	$ 6.33	$ 5.28
Weighted Average | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield	2.96%	2.89%	2.91%
Expected life in years	7 years	5 years 6 months	5 years 6 months
Risk-free interest rate	1.35%	1.37%	2.17%
Fair Value as a percentage of market value at grant date	40.00%	39.00%	35.00%

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Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Cash and cash equivalents:
Cash and due from banks	$ 41,362	$ 38,007
Interest-earning deposits	10,153	12,218
Fed funds sold	2,218	2,510
Total cash and cash equivalents	53,733	52,735
Investment securities at fair value	215,369	184,464
Federal Home Loan Bank Stock	4,324	4,260
Loans held for sale	1,255	8,557
Loans, less allowance for loan losses of $26,967 and $24,254 at December 31, 2013 and 2012, respectively	1,497,089	1,335,401
Premises and equipment	29,891	27,206
Accrued interest receivable	6,186	5,828
Deferred income taxes, net	13,927	12,548
Bank-owned life insurance	15,902	15,443
Prepaid income taxes	443	174
Prepaid expenses and other assets	6,150	13,454
Goodwill	5,656	5,656
Total assets	1,849,925	1,665,726
Liabilities
Deposits	1,635,992	1,475,027
Borrowed funds	36,534	26,540
Junior subordinated debentures	10,825	10,825
Accrued expenses and other liabilities	14,675	13,182
Accrued interest payable	565	603
Total liabilities	1,698,591	1,526,177
Commitments and Contingencies
Stockholders' Equity
Preferred stock, $0.01 par value per share; 1,000,000 shares authorized; no shares issued	0	0
Common stock $0.01 par value per share; 20,000,000 shares authorized; 9,992,560 issued and outstanding at December 31, 2013 (including 170,365 shares of unvested participating restricted awards) and 9,676,477 shares issued and outstanding at December 31, 2012 (including 154,186 shares of unvested participating restricted awards)	100	97
Additional paid-in capital	52,936	48,194
Retained earnings	96,153	87,159
Accumulated other comprehensive income	2,145	4,099
Total stockholders’ equity	151,334	139,549
Total liabilities and stockholders' equity	$ 1,849,925	$ 1,665,726

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Investments - Maturities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Total fixed income securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Within One Year	$ 13,379
Amortized Cost, Within One Year, Yield	1.12%
Fair Value, Within One Year	13,439
Amortized Cost Basis, After One, But Within Five Years	69,194
Amortized Cost Basis, After One, But Within Five Years, Yield	1.49%
Fair Value, After One, But Within Five Years	69,864
Amortized Cost, After Five, But Within Ten Years	43,357
Amortized Cost, After Five, But Within Ten Years, Yield	3.93%
Fair Value, After Five, But Within Ten Years	43,996
Amortized Cost Basis, After Ten Years	76,262
Amortized Cost Basis, After Ten Years, Yield	2.49%
Fair Value, After Ten Years	74,902
Federal agency obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Within One Year	10,030
Amortized Cost, Within One Year, Yield	0.82%
Amortized Cost Basis, After One, But Within Five Years	42,443
Amortized Cost Basis, After One, But Within Five Years, Yield	0.78%
Amortized Cost, After Five, But Within Ten Years	2,967
Amortized Cost, After Five, But Within Ten Years, Yield	1.97%
Amortized Cost Basis, After Ten Years	0
Amortized Cost Basis, After Ten Years, Yield	0.00%
MBS
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Within One Year	0
Amortized Cost, Within One Year, Yield	0.00%
Amortized Cost Basis, After One, But Within Five Years	3,341
Amortized Cost Basis, After One, But Within Five Years, Yield	2.45%
Amortized Cost, After Five, But Within Ten Years	7,562
Amortized Cost, After Five, But Within Ten Years, Yield	3.02%
Amortized Cost Basis, After Ten Years	70,094
Amortized Cost Basis, After Ten Years, Yield	2.14%
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Within One Year	3,349
Amortized Cost, Within One Year, Yield	2.04%
Amortized Cost Basis, After One, But Within Five Years	20,023
Amortized Cost Basis, After One, But Within Five Years, Yield	2.83%
Amortized Cost, After Five, But Within Ten Years	31,135
Amortized Cost, After Five, But Within Ten Years, Yield	4.40%
Amortized Cost Basis, After Ten Years	6,168
Amortized Cost Basis, After Ten Years, Yield	6.42%
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Within One Year	0
Amortized Cost, Within One Year, Yield	0.00%
Amortized Cost Basis, After One, But Within Five Years	3,387
Amortized Cost Basis, After One, But Within Five Years, Yield	1.54%
Amortized Cost, After Five, But Within Ten Years	1,693
Amortized Cost, After Five, But Within Ten Years, Yield	2.68%
Amortized Cost Basis, After Ten Years	$ 0
Amortized Cost Basis, After Ten Years, Yield	0.00%

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Consolidated Statement of Changes in Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated OtherComprehensive Income/(Loss)
Balance, beginning at Dec. 31, 2010	$ 116,673	$ 93	$ 42,590	$ 72,000	$ 1,990
Balance, beginning, shares, outstanding at Dec. 31, 2010		9,290,465
Increase (Decrease) in Stockholders' Equity
Net income	10,944			10,944
Other comprehensive income (loss), net	1,206				1,206
Tax benefit from exercise of stock options	4		4
Common stock dividend paid	(3,945)			(3,945)
Common stock issued under dividend reinvestment plan, shares		84,760
Common stock issued under dividend reinvestment plan	1,254	1	1,253
Stock-based compensation, shares		72,405
Stock-based compensation	1,003	1	1,002
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Net of Stock Swaps		25,118
Stock options exercised, net	309	0	309
Balance, ending at Dec. 31, 2011	127,448	95	45,158	78,999	3,196
Balance, ending, shares, outstanding at Dec. 31, 2011		9,472,748
Increase (Decrease) in Stockholders' Equity
Net income	12,375			12,375
Other comprehensive income (loss), net	903				903
Tax benefit from exercise of stock options	2		2
Common stock dividend paid	(4,215)			(4,215)
Common stock issued under dividend reinvestment plan, shares		80,392
Common stock issued under dividend reinvestment plan	1,274	1	1,273
Stock-based compensation, shares		82,955
Stock-based compensation	1,253	1	1,252
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Net of Stock Swaps		40,382
Stock options exercised, net	509	0	509
Balance, ending at Dec. 31, 2012	139,549	97	48,194	87,159	4,099
Balance, ending, shares, outstanding at Dec. 31, 2012	9,676,477	9,676,477
Increase (Decrease) in Stockholders' Equity
Net income	13,529			13,529
Other comprehensive income (loss), net	(1,954)				(1,954)
Tax benefit from exercise of stock options	25		25
Common stock dividend paid	(4,535)			(4,535)
Common stock issued under dividend reinvestment plan, shares		69,633
Common stock issued under dividend reinvestment plan	1,239	1	1,238
Stock-based compensation, shares		90,824
Stock-based compensation	1,652	1	1,651
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Net of Stock Swaps		155,626
Stock options exercised, net	1,829	1	1,828
Balance, ending at Dec. 31, 2013	$ 151,334	$ 100	$ 52,936	$ 96,153	$ 2,145
Balance, ending, shares, outstanding at Dec. 31, 2013	9,992,560	9,992,560

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Deposits (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Deposits [Abstract]
Non-interest demand deposits	$ 435,465		$ 386,643
Interest bearing checking	222,837		210,564
Savings	150,215		154,680
Money market	575,825		491,942
Certificates of deposit less than $100,000	95,530		106,904
Certificates of deposit of $100,000 or more	104,553		121,262
Total non-brokered deposits	1,584,425	[1]	1,471,995	[1]
Brokered deposits	51,567	[2]	3,032	[2]
Total deposits	1,635,992		1,475,027
Overdrawn deposits reclassified as loans	$ 1,400		$ 700

[1] Includes reciprocal money market deposits and CDs received from participating banks in nationwide networks as a result of our customers electing to participate in programs to obtain full FDIC insurance. Essentially, the equivalent of the original deposit comes back to the Company as non-brokered deposits within the appropriate category under total deposits on the balance sheet.

[2] Primarily brokered CDs under $100,000.

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Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2013

Supplemental Retirement Plan

Defined Benefit Plan Disclosure [Line Items]

Schedule of Expected Benefit Payments

Benefits expected to be paid in each of the next five years and in the aggregate five years thereafter: 

(Dollars in thousands)
2014	$	276
2015	276
2016	276
2017	276
2018	276
2019-2023	1,379

Schedule of Changes in Projected Benefit Obligations

The following table provides a reconciliation of the changes in the supplemental retirement benefit obligation and the net periodic benefit cost for the years ended December 31:

(Dollars in thousands)	2013			2012			2011
Reconciliation of benefit obligation:
Benefit obligation at beginning of year	$	3,181		$	3,203		$	3,135
Interest cost	157			134			171
Actuarial loss (gain) (1)	(173		)	120			173
Benefits paid	(276		)	(276		)	(276		)
Benefit obligation at end of year	$	2,889		$	3,181		$	3,203
Funded status:
Accrued liability as of December 31	$	(2,889	)	$	(3,181	)	$	(3,203	)
Discount rate used for benefit obligation	5.00		%	4.25		%	4.75		%
Net periodic benefit cost:
Interest cost	157			134			171
Actuarial loss (gain) (1)	(173		)	120			173
Net periodic benefit costs	$	(16	)	$	254		$	344

(1) Management utilizes the Moody’s 20 year AA corporate bond rates to establish the reasonableness of the discount rate used. The Company reviews and periodically updates the discount rate to reflect changes in bond market rates.  The impact of the discount rate change is reflected as the actuarial gain or loss.

Supplemental Life Insurance Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Changes in Projected Benefit Obligations

The following table provides a reconciliation of the changes in the supplemental life insurance plan obligation and the net periodic benefit cost for the years ended December 31:

(Dollars in thousands)	2013			2012			2011
Reconciliation of benefit obligation:
Benefit obligation at beginning of year	$	1,664		$	1,414		$	1,317
Service cost	2			8			15
Interest cost	74			67			72
Actuarial loss (gain) (1)	(164		)	175			10
Benefit obligation at end of year	$	1,576		$	1,664		$	1,414
Funded status:
Accrued liability as of December 31	$	(1,576	)	$	(1,664	)	$	(1,414	)
Discount rate used for benefit obligation	5.00		%	4.25		%	4.75		%
Net periodic benefit cost:
Service cost	$	2		$	8		$	15
Interest cost	74			67			72
Actuarial loss (gain) (1)	(164		)	175			10
Total net period (benefit) cost	$	(88	)	$	250		$	97

 (1) Management utilizes the Moody’s 20 year AA corporate bond rates to establish the reasonableness of the discount rate used. The Company reviews and periodically updates the discount rate to reflect changes in bond market rates.  The impact of the discount rate change is reflected as the actuarial gain or loss. 

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Stockholders' Equity - Narrative (Details) (USD $)	3 Months Ended	12 Months Ended						12 Months Ended
	Dec. 31, 2009	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 1989	Jul. 18, 2013	Mar. 31, 2000 Enterprise (MA) Capital Trust I	Dec. 31, 2013 Retained Earnings	Dec. 31, 2012 Retained Earnings	Dec. 31, 2011 Retained Earnings	Dec. 31, 2013 Common Stock	Dec. 31, 2012 Common Stock	Dec. 31, 2011 Common Stock	Dec. 31, 2013 Common Stock vote	Dec. 31, 2013 Series A Junior Participating Preferred Stock
Class of Stock [Line Items]
Common stock, shares authorized		20,000,000	20,000,000
Preferred stock, shares authorized		1,000,000	1,000,000
Votes Per Share, Number														1
Preferred stock, par value		$ 0.01	$ 0.01
Amount of a share allowed to be purchased under right to purchase															0.01
Price per one one-hundredth of a share															$ 52.00
Minimum acquisition percentage to trigger the exercise of the right to purchase															10.00%
Proceeds from issuance of common stock		$ 1,239,000	$ 1,274,000	$ 1,254,000	$ 15,500,000
Trust preferred securities issued, value							10,500,000
Net proceeds from 2009 Shareholder Subscription Rights Offering and Supplemental Community Offering	8,800,000
Maximum amount available to be raised under 2013 shelf registration						40,000,000
Common stock issued under dividend reinvestment plan, value		1,239,000	1,274,000	1,254,000							1,000	1,000	1,000
Common stock dividend		$ 4,535,000	$ 4,215,000	$ 3,945,000				$ 4,535,000	$ 4,215,000	$ 3,945,000
Common stock issued under dividend reinvestment plan, shares											69,633	80,392	84,760

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Fair Value Measurements

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

 The FASB defines the fair value of an asset or liability to be the price which a seller would receive in an orderly transaction between market participants (an exit price) and also establishes a fair value hierarchy segregating fair value measurements using three levels of inputs: (Level 1) quoted market prices in active markets for identical assets or liabilities; (Level 2) significant other observable inputs, including quoted prices for similar items in active markets, quoted prices for identical or similar items in markets that are not active, inputs such as interest rates and yield curves, volatilities, prepayment speeds, credit risks and default rates which provide a reasonable basis for fair value determination or inputs derived principally from observed market data; (Level 3) significant unobservable inputs for situations in which there is little, if any, market activity for the asset or liability.  Unobservable inputs must reflect reasonable assumptions that market participants would use in pricing the asset or liability, which are developed on the basis of the best information available under the circumstances.

The following tables summarize significant assets and liabilities carried at fair value and placement in the fair value hierarchy at the dates specified:

	December 31, 2013		Fair Value Measurements using:
(Dollars in thousands)	Fair Value		(level 1)		(level 2)		(level 3)
Assets measured on a recurring basis:
Fixed income securities	$	202,201	$	—	$	202,201	$	—
Equity securities	13,168		13,168		—		—
FHLB Stock	4,324		—		—		4,324
Assets measured on a non-recurring basis:
Impaired loans (collateral dependent)	6,542		—		—		6,542
Other real estate owned	114		—		—		114

	December 31, 2012		Fair Value Measurements using:
(Dollars in thousands)	Fair Value		(level 1)		(level 2)		(level 3)
Assets measured on a recurring basis:
Fixed income securities	$	173,796	$	—	$	173,796	$	—
Equity securities	10,668		10,668		—		—
FHLB Stock	4,260		—		—		4,260
Assets measured on a non-recurring basis:
Impaired loans (collateral dependent)	7,110		—		—		7,110
Other real estate owned	500		—		—		500

The Company did not have cause to transfer any assets between the fair value measurement levels during the year ended December 31, 2013 or the year ended December 31, 2012. There were no liabilities measured at fair value on a recurring or non-recurring basis as of December 31, 2013, or December 31, 2012.

All of the Company's fixed income investments and equity securities that are considered “available for sale” are carried at fair value.  The fixed income category above includes federal agency obligations, federal agency MBS, municipal securities, and corporate bonds, as held at those dates. The Company utilizes third-party pricing vendors to provide valuations on its fixed income securities.  Fair values provided by the vendors were generally determined based upon pricing matrices utilizing observable market data inputs for similar or benchmark securities in active markets and/or based on a matrix pricing methodology which employs The Bond Market Association’s standard calculations for cash flow and price/yield analysis, live benchmark bond pricing and terms/condition data available from major pricing sources.  Therefore, management regards the inputs and methods used by third party pricing vendors to be “Level 2 inputs and methods” as defined in the “fair value hierarchy.” The Company periodically obtains a second price from an impartial third party on fixed income securities to assess the reasonableness of prices provided by the primary independent pricing vendor.

The Company’s equity portfolio fair value is measured based on quoted market prices for the shares, therefore these securities are categorized as Level 1 within the fair value hierarchy.

Net unrealized appreciation and depreciation on investments available for sale, net of applicable income taxes, are reflected as a component of accumulated other comprehensive income.

The Bank is required to purchase FHLB stock at par value in association with advances from the FHLB; this stock is classified as a restricted investment and carried at cost which management believes approximates fair value, therefore these securities are categorized as Level 3 measures.  See the discussion regarding FHLB stock in Note 1, “Summary of Significant Accounting Policies,” under Item d above, for further information regarding the Company’s fair value assessment of FHLB capital stock.

Impaired loan balances in the table above represent those collateral dependent impaired commercial loans where management has estimated the credit loss by comparing the loan’s carrying value against the expected realizable fair value of the collateral (appraised value or internal analysis less estimated cost to sell, adjusted as necessary for changes in relevant valuation factors subsequent to the measurement date).  Certain inputs used in these assessments, and possible subsequent adjustments, are not always observable, and therefore, collateral dependent impaired loans are categorized as Level 3 within the fair value hierarchy.  A specific allowance is assigned to the collateral dependent impaired loan for the amount of management’s estimated credit loss.  The specific allowances assigned to the collateral dependent impaired loans at December 31, 2013 amounted to $3.2 million compared to $3.3 million at December 31, 2012.

Real estate acquired by the Company through foreclosure proceedings or the acceptance of a deed in lieu of foreclosure is classified as OREO.  When property is acquired, it is generally recorded at the lesser of the loan’s remaining principal balance, net of unamortized deferred fees, or the estimated fair value of the property acquired, less estimated costs to sell.  The estimated fair value is based on market appraisals and the Company’s internal analysis.  Certain inputs used in appraisals or the Company's internal analysis, are not always observable, and therefore, OREO may be categorized as Level 3 within the fair value hierarchy.  There were $121 thousand of gains realized on the sale of OREO in 2013 and a $23 thousand loss was recorded on the remaining property to reflect current expected realizable value. There were $87 thousand in gains on OREO sales in 2012.

The following table presents additional quantitative information about assets measured at fair value on a recurring and non-recurring basis for which the Company utilized Level 3 inputs (significant unobservable inputs for situations in which there is little, if any, market activity for the asset or liability) to determine fair value as of December 31, 2013.

(Dollars in thousands)	Fair Value	Valuation Technique	Unobservable Input	Unobservable Input Value or Range
Assets measured on a recurring basis:
FHLB Stock	$4,324	FHLB Stated Par Value	N/A	N/A
Assets measured on a non-recurring basis:
Impaired loans (collateral dependent)	$6,542	Appraisal of collateral	Appraisal adjustments (1)	5% - 50%
Other real estate owned	$114	Appraisal of collateral	Appraisal adjustments (1)	0% - 30%

(1) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses.

Other Guarantees and Commitments

Standby letters of credit are conditional commitments issued by the Company to guarantee the financial obligation or performance by a customer to a third party.  The fair value of these commitments was estimated to be the fees charged to enter into similar agreements, and accordingly these fair value measures are deemed to be FASB Level 2 measurements.  In accordance with the FASB, the estimated fair values of these commitments are carried on the balance sheet as a liability and amortized to income over the life of the letters of credit, which are typically one year.  The estimated fair value of these commitments carried on the balance sheet were deemed immaterial.

Interest rate lock commitments related to the origination of mortgage loans that will be sold are considered derivative instruments.  The commitments to sell loans are also considered derivative instruments. The Company generally does not pool mortgage loans for sale, but instead, sells the loans on an individual basis. To reduce the net interest rate exposure arising from its loan sale activity, the Company enters into the commitment to sell these loans at essentially the same time that the interest rate lock commitment is quoted on the origination of the loan. The Company estimates the fair value of these derivatives based on current secondary mortgage market prices.   These commitments represent the Company’s only derivative instruments and are accounted for in accordance with FASB guidance.  The fair values of the Company’s derivative instruments are deemed to be FASB Level 2 measurements.  At December 31, 2013 and December 31, 2012, the estimated fair value of the Company’s derivative instruments was considered to be immaterial.

Estimated Fair Values of Assets and Liabilities

In addition to disclosures regarding the measurement of assets and liabilities carried at fair value on the balance sheet, the Company is also required to disclose fair value information about financial instruments for which it is practicable to estimate that value, whether or not recognized on the balance sheet.  In cases where quoted fair values are not available, fair values are based upon estimates using various valuation techniques.  Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows.  The following methods and assumptions were used by the Company in estimating fair values of its financial instruments:

Loans held for sale: Loans held for sale are recordedat the lower of aggregate amortized cost or market value. The fair value is based on comparable market prices for loans with similar rates and terms.

Loans: The fair value of loans was determined using discounted cash flow analysis, using interest rates currently being offered by the Company.  The incremental credit risk for non-accrual loans was considered in the determination of the fair value of the loans.  This method of estimating fair value does not incorporate the exit price concept of fair value.

Commitments: The fair values of the unused portion of lines of credit and letters of credit were estimated to be the fees currently charged to enter into similar agreements.  Commitments to originate non-mortgage loans were short-term and were at current market rates and estimated to have no significant change in fair value.

Financial liabilities: The fair values of certificates of deposit and borrowings were estimated using discounted cash flow analysis using rates offered by the Bank, or advance rates offered by the FHLB on December 31, 2013 and December 31, 2012 for similar instruments.  The fair value of junior subordinated debentures was estimated using discounted cash flow analysis using a market rate of interest at December 31, 2013 and December 31, 2012.

Limitations:  The estimates of fair value of financial instruments were based on information available at December 31, 2013 and December 31, 2012 and are not indicative of the fair market value of those instruments as of the date of this report.  These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. The fair value of the Company's time deposit liabilities do not take into consideration the value of the Company's long-term relationships with depositors, which may have significant value.

Because no active market exists for a portion of the Company’s financial instruments, fair value estimates were based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors.  These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision.  Changes in assumptions could significantly affect the estimates.

Fair value estimates were based on existing on- and off-balance sheet financial instruments without an attempt to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments.

In addition, the tax ramifications related to the realization of the unrealized appreciation and depreciation can have a significant effect on fair value estimates and have not been considered in any of the estimates.  Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company.

The carrying values, estimated fair values and placement in the fair value hierarchy of the Company’s financial instruments⁽¹⁾ for which fair value is only disclosed but not recognized on the balance sheet at the dates indicated are summarized as follows:

	December 31, 2013				Fair value measurement
(Dollars in thousands)	Carrying Amount		Fair Value		Level 1 inputs		Level 2 Inputs		Level 3 Inputs
Financial assets:
Loans held for sale	$	1,255	$	1,255	$	—	$	1,255	$	—
Loans, net	1,497,089		1,516,809		—		—		1,516,809
Financial liabilities:
Certificates of deposit (including brokered)	251,650		250,045		—		250,045		—
Borrowed funds	36,534		36,535		—		36,535		—
Junior subordinated debentures	10,825		11,358		—		—		11,358

	December 31, 2012				Fair value measurement
(Dollars in thousands)	Carrying Amount		Fair Value		Level 1 inputs		Level 2 Inputs		Level 3 Inputs
Financial assets:
Loans held for sale	$	8,557	$	8,603	$	—	$	8,603	$	—
Loans, net	1,335,401		1,355,893		—		—		1,355,893
Financial liabilities:
Certificates of deposit (including brokered)	231,198		231,687		—		231,687		—
Borrowed funds	26,540		26,553		—		26,553		—
Junior subordinated debentures	10,825		12,597		—		—		12,597

(1) Excluded from this table are certain financial instruments that approximated their fair value, as they were short-term in nature or payable on demand.  These include cash and cash equivalents, accrued interest receivable, non-term deposit accounts, and accrued interest payable. The respective carrying values of these instruments would all be considered to be classified within Level 1 of their fair value hierarchy.

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Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The table below provides a summary of the options granted, fair value, the fair value as a percentage of the market value of the stock at the date of grant and the average assumptions used in the model for the years indicated.

	2013			2012			2011
Options granted	47,684			68,750			83,075
Average assumptions used in the model:
Expected volatility	48		%	50		%	45		%
Expected dividend yield	2.96		%	2.89		%	2.91		%
Expected life in years	7.0			5.5			5.5
Risk-free interest rate	1.35		%	1.37		%	2.17		%
Market price on date of grant	$	16.61		$	16.25		$	14.88
Per share weighted average fair value	$	6.66		$	6.33		$	5.28
Fair Value as a percentage of market value at grant date	40		%	39		%	35		%

Schedule of Share-based Compensation, Stock Options, Activity

Stock option transactions during the year ended December 31, 2013 are summarized as follows:

(Dollars in thousands, except per share data)	Options	Weighted Average Exercise Price Per Share		Weighted Average Remaining Life in Years	Aggregate Intrinsic Value
Outstanding December 31, 2012	649,211	$	14.28	2.6	$	1,462
Granted	47,684	16.61
Exercised	273,529	14.63
Forfeited/Expired	6,014	13.31
Outstanding December 31, 2013	417,352	$	14.32	3.5	$	2,857
Vested and Exercisable at December 31, 2013	265,252	$	13.59	2.1	$	2,012

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity

The following table sets forth a summary of the activity for the Company’s restricted stock awards.

(Dollars in thousands, except per share data)	Restricted Stock	Weighted Average Grant Price Per Share		Weighted Average Remaining Life In Years	Aggregate Intrinsic Value
Unvested at December 31, 2012	154,186	$	14.58	2.3	$	2,547
Granted	80,541	16.43
Vested/released	62,053	13.65
Forfeited	2,309	15.72
Unvested at December 31, 2013	170,365	$	15.77	2.2	$	3,607

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Quarterly Results of Operations

12 Months Ended

Dec. 31, 2013

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations (Unaudited)

Quarterly Results of Operations (Unaudited)

	2013
(Dollars in thousands, except share data)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Interest and dividend income	$	17,193	$	17,458	$	17,946	$	18,525
Interest expense	1,374		1,331		1,313		1,313
Net interest income	15,819		16,127		16,633		17,212
Provision for loan losses	783		534		583		1,379
Net interest income after provision for loan losses	15,036		15,593		16,050		15,833
Non-interest income	3,159		3,085		3,085		3,224
Net gains on sales of investment securities	480		468		83		208
Non-interest expense	13,454		14,461		13,781		14,128
Income before income taxes	5,221		4,685		5,437		5,137
Provision for income taxes	1,788		1,606		1,904		1,653
Net income	$	3,433	$	3,079	$	3,533	$	3,484
Basic earnings per share	$	0.35	$	0.31	$	0.36	$	0.35
Diluted earnings per share	$	0.35	$	0.31	$	0.35	$	0.35

	2012
(Dollars in thousands, except share data)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Interest and dividend income	$	16,776	$	17,087	$	17,182	$	17,360
Interest expense	1,847		1,676		1,534		1,438
Net interest income	14,929		15,411		15,648		15,922
Provision for loan losses	300		1,050		800		600
Net interest income after provision for loan losses	14,629		14,361		14,848		15,322
Non-interest income	2,927		2,840		2,947		3,225
Net gains on sales of investment securities	47		112		38		39
Non-interest expense	12,818		12,972		13,010		13,812
Income before income taxes	4,785		4,341		4,823		4,774
Provision for income taxes	1,612		1,436		1,760		1,540
Net income	$	3,173	$	2,905	$	3,063	$	3,234
Basic earnings per share	$	0.33	$	0.30	$	0.32	$	0.34
Diluted earnings per share	$	0.33	$	0.30	$	0.32	$	0.33

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Employee Benefit Plans - Supplemental Retirement Plan (SERP) (Details) (Supplemental Retirement Plan, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 officer		Dec. 31, 2012		Dec. 31, 2011
Supplemental Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Number of active executive officers under plan	2
Number of former executive officers under plan	1
Term of SERP benefits	20 years
Accrual for benefit obligation for following year	$ 142
Benefit obligation at beginning of year	3,181		3,203		3,135
Interest cost	157		134		171
Actuarial loss(gain)	(173)	[1]	120	[1]	173	[1]
Benefits paid	276		276		276
Benefit obligation at end of year	2,889		3,181		3,203
Accrued liability at end of year	(2,889)		(3,181)		(3,203)
Discount rate used for benefit obligation	5.00%		4.25%		4.75%
Net periodic benefit cost(benefit)	$ (16)		$ 254		$ 344

[1] Management utilizes the Moody’s 20 year AA corporate bond rates to establish the reasonableness of the discount rate used. The Company reviews and periodically updates the discount rate to reflect changes in bond market rates. The impact of the discount rate change is reflected as the actuarial gain or loss.

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Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Stockholders' Equity [Abstract]
Common stock dividend paid, per share	$ 0.46	$ 0.44	$ 0.42

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Statement of Financial Position [Abstract]
Allowance for loan losses	$ 26,967	$ 24,254	$ 23,160	$ 19,415
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	9,992,560	9,676,477
Common stock, shares outstanding	9,992,560	9,676,477
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Unvested participating restricted stock awards	170,365	154,186

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Stockholders' Equity

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

Stockholders' Equity

Stockholders’ Equity

The Company’s authorized capital is divided into common stock and preferred stock. The Company is authorized to issue 20,000,000 shares of common stock and 1,000,000 shares of preferred stock.

Holders of common stock are entitled to one vote per share, and are entitled to receive dividends if and when declared by the Board of Directors. Dividend and liquidation rights of the common stock may be subject to the rights of any outstanding preferred stock.

The Company has a shareholders rights plan. Under the plan each share of common stock includes a right to purchase under certain circumstances one one-hundredth of a share of the Company’s Series A Junior Participating Preferred Stock, par value $0.01 per share, at a purchase price of $52.00 per one one-hundredth of a preferred share, subject to adjustment, or, in certain circumstances, to receive cash, property, shares of common stock or other securities of the Company.  The rights are not presently exercisable and remain attached to the shares of common stock until the occurrence of certain triggering events that would ordinarily be associated with an unsolicited acquisition or attempted acquisition of 10% or more of the Company’s outstanding shares of common stock.  The rights will expire, unless earlier redeemed, exchanged, or otherwise rescinded by the Company, on January 13, 2018.  The rights have no voting or dividend privileges, and unless and until they become exercisable, have no dilutive effect on the earnings of the Company.

Capital Adequacy Requirements

Capital planning by the Company and the Bank considers current needs and anticipated future growth.  The primary sources of capital have been the original capitalization of the Bank of $15.5 million from the sale of common stock in 1988 and 1989, the issuance of $10.5 million of trust preferred securities in 2000 by the Trust, and net proceeds of $8.8 million from the 2009 Shareholder Subscription Rights Offering and Supplemental Community Offering (the net proceeds from these offerings were contributed to the Bank). Ongoing sources of capital include the retention of earnings less dividends paid since the Bank commenced operations, proceeds from the exercise of employee stock options and proceeds from purchases of shares pursuant to the Company’s dividend reinvestment plan.

Although management believes its current capital is adequate to support ongoing operations, on July 18, 2013, the Company filed a shelf registration of common stock, rights or preferred stock with the Securities and Exchange Commission for the flexibility to raise, over a three year period, up to $40 million in capital to position the Company to take advantage of future growth and market share opportunities.

Applicable regulatory requirements require the Company to maintain minimum total capital equal to 8% of total risk-weighted assets (total capital ratio), minimum Tier 1 capital equal to 4% of total risk-weighted assets (Tier 1 capital ratio) and minimum Tier 1 capital equal to 4% of quarterly average total assets (leverage capital ratio).  Tier 1 capital, in the case of the Company, is composed of common equity and, subject to regulatory limits, trust preferred securities, reduced by certain intangible assets. Total capital includes Tier 1 capital plus Tier 2 capital which, in the case of the Company, is composed of the allowance for loan losses up to 1.25% of risk-weighted assets. Applicable regulatory requirements for the Bank are not materially different from those of the Company.

Failure to meet minimum capital requirements can initiate or result in certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a material adverse effect on the Company’s financial statements.  Under applicable capital adequacy requirements and the regulatory framework for prompt corrective action applicable to the Bank, the Company must meet specific capital guidelines that involve quantitative measures of the Company’s assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices.  The Company’s capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors.

Management believes, as of December 31, 2013, that the Company and the Bank meet all capital adequacy requirements to which they are subject. As of December 31, 2013 and 2012, both the Company and the Bank qualified as “well capitalized” under applicable Federal Reserve Board and FDIC regulations. To be categorized as well capitalized under prompt corrective action framework, the Company and the Bank must maintain minimum Total and Tier 1 capital ratios, and in the case of the Bank, leverage capital ratios, as set forth in the table below.

The Company’s and the Bank’s actual capital amounts and ratios are presented in the following tables.

	Actual				Minimum Capital for Capital Adequacy Purposes				Minimum Capital To Be Well Capitalized*
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2013
The Company
Total Capital (to risk weighted assets)	$	174,145	11.35	%	$	122,752	8.00	%	$	153,440	10.00	%
Tier 1 Capital (to risk weighted assets)	153,425		10.00	%	61,376		4.00	%	92,064		6.00	%
Tier 1 Capital (to average assets)*	153,425		8.48	%	72,375		4.00	%	N/A		N/A
The Bank
Total Capital (to risk weighted assets)	$	173,126	11.28	%	$	122,744	8.00	%	$	153,430	10.00	%
Tier 1 Capital (to risk weighted assets)	152,408		9.93	%	61,372		4.00	%	92,058		6.00	%
Tier 1 Capital (to average assets)	152,408		8.43	%	72,343		4.00	%	90,428		5.00	%

____________________

* For the Bank to qualify as “well capitalized”, it must maintain a leverage capital ratio (Tier 1 capital to average assets) of at least 5%.  This requirement does not apply to the Company.

	Actual				Minimum Capital for Capital Adequacy Purposes				Minimum Capital To Be Well Capitalized*
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2012
The Company
Total Capital (to risk weighted assets)	$	157,716	11.46	%	$	110,079	8.00	%	$	137,599	10.00	%
Tier 1 Capital (to risk weighted assets)	139,714		10.15	%	55,040		4.00	%	82,560		6.00	%
Tier 1 Capital (to average assets)*	139,714		8.64	%	64,716		4.00	%	N/A		N/A
The Bank
Total Capital (to risk weighted assets)	$	156,883	11.40	%	$	110,075	8.00	%	$	137,594	10.00	%
Tier 1 Capital (to risk weighted assets)	138,882		10.09	%	55,037		4.00	%	82,556		6.00	%
Tier 1 Capital (to average assets)	138,882		8.59	%	64,684		4.00	%	80,855		5.00	%

_____________________

* For the Bank to qualify as “well capitalized”, it must maintain a leverage capital ratio (Tier 1 capital to average assets) of at least 5%.  This requirement does not apply to the Company.

In July 2013, the Federal Reserve, the FDIC and OCC, adopted a final rule that implements the Basel III changes to the international regulatory capital framework and revises the U.S. risk-based and leverage capital requirements for U.S. banking organizations. As a result of these regulatory changes, beginning January 1, 2015, with a phase in period that extends to January 2019, the Company will be subject to changes in the capital ratio calculations and the methodology used to calculate such ratios. For further information on the Basel III requirements see the “Supervision and Regulation” contained in Item 1, "Business" in this Form 10-K.

Dividends

Neither the Company nor the Bank may declare or pay dividends on its stock if the effect thereof would cause stockholders’ equity to be reduced below applicable regulatory capital requirements or if such declaration and payment would otherwise violate regulatory requirements.

As the principal asset of the Company, the Bank currently provides the only source of cash for the payment of dividends by the Company.  Under Massachusetts law, trust companies such as the Bank may pay dividends only out of “net profits” and only to the extent that such payments will not impair the Bank’s capital stock.  Any dividend payment that would exceed the total of the Bank’s net profits for the current year plus its retained net profits of the preceding two years would require the Massachusetts Division of Banks' approval. Applicable provisions of the FDIC Improvement Act also prohibits a bank from paying any dividends on its capital stock if the bank is in default on the payment of any assessment to the FDIC or if the payment of dividends would otherwise cause the bank to become undercapitalized.  These restrictions on the ability of the Bank to pay dividends to the Company may restrict the ability of the Company to pay dividends to the holders of its common stock.

The statutory term “net profits” essentially equates with the accounting term “net income” and is defined under the Massachusetts banking statutes to mean the remainder of all earnings from current operations plus actual recoveries on loans and investments and other assets after deducting from such total all current operating expenses, actual losses, accrued dividends on any preferred stock and all federal and state taxes.

The Company maintains a dividend reinvestment plan (the “DRP”).  The DRP enables stockholders, at their discretion, to elect to reinvest dividends paid on their shares of the Company’s common stock by purchasing additional shares of common stock from the Company at a purchase price equal to fair market value. Shareholders utilized the DRP to reinvest $1.2 million, of the $4.5 million total dividends paid by the Company in 2013, into 69,633 shares of the Company’s common stock, and $1.3 million, of the $4.2 million total dividends paid by the Company in 2012, into 80,392 shares of the Company’s common stock.

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Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Mar. 03, 2014	Jun. 28, 2013
Document and Entity Information [Abstract]
Entity Registrant Name	ENTERPRISE BANCORP INC /MA/
Entity Central Index Key	0001018399
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-K
Document Period End Date	Dec. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding		10,036,489
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 134,603,520

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Employee Benefit Plans

12 Months Ended

Dec. 31, 2013

Compensation and Retirement Disclosure [Abstract]

Employee Benefit Plans

Employee Benefit Plans

401(k) Defined Contribution Plan and Profit Sharing

The Company has a 401(k) defined contribution employee benefit plan.  The 401(k) plan allows eligible employees to contribute a percentage of their earnings to the plan.  A portion of the employee contribution, as determined by the Compensation Committee of the Board of Directors, is matched by the Company. The Company’s current percentage match has been 60% up to the first 6% contributed by the employee.

All eligible employees, at least 18 years of age and completing 1 hour of service, may participate in the 401(k) plan.  Vesting for the Company’s 401(k) plan matching contribution is based on years of service with participants becoming 20% vested on January 1st of the year following their date of hire and each subsequent January 1st increasing pro-rata to 100% vesting on January1st following five years of service.  Amounts not distributable to an employee following termination of employment are used to offset plan expenses and other contributions.

The Company also has a profit sharing component to the 401(k) plan that vests in the same manner as the 401(k) employer match noted above. Employees are not required to participate in the 401(k) plan to receive a profit sharing contribution.  All eligible employees, at least 18 years of age, completing 1 hour of service and employed on the last day of the year, may receive a profit sharing contribution.  The Company’s contribution is based on company-wide net income targets that are determined at the beginning of the fiscal year and is calculated as a percentage of an employee’s base salary, including overtime and differentials, earned during the plan year up to a maximum salary amount determined by the Compensation Committee of the Board of Directors, which is currently $75 thousand.

From time to time, the Company may also make a discretionary employer contribution to the 401(k) plan.  No amounts were contributed as discretionary contributions in 2013, 2012 or 2011.

The Company’s expense for the 401(k) plan match (excluding the profit sharing component) was $692 thousand, $629 thousand and $591 thousand, respectively, for the years ended December 31, 2013, 2012, and 2011.

The Company’s expense for the profit sharing contribution to the 401(k) plan was $458 thousand, $618 thousand and $399 thousand for the years ended December 31, 2013, 2012 and 2011, respectively.

Supplemental Retirement Plan (SERP)

The Company has salary continuation agreements with two of its active executive officers, and one former executive officer, who currently works on a part-time basis. These salary continuation agreements provide for a predetermined fixed-cash supplemental retirement benefit to be provided for a period of 20 years after the individual reaches a defined “benefit age.”  The Company has not recognized service cost in the current or prior year as each officer had previously attained their individually defined benefit age and was fully vested under the plan.

This non-qualified plan represents a direct liability of the Company, and as such has no specific assets set aside to settle the benefit obligation.  The funded status is the aggregate amount accrued, or the “Accumulated Benefit Obligation,” which is equal to the present value of the benefits to be provided to the employee or any beneficiary.  Because the Company’s benefit obligations provide for predetermined fixed-cash payments, the Company does not have any unrecognized costs to be included as a component of accumulated other comprehensive income.

The amounts charged to expense for this plan are included in the table below. The Company anticipates accruing an additional $142 thousand to the plan for the year ending December 31, 2014.

The following table provides a reconciliation of the changes in the supplemental retirement benefit obligation and the net periodic benefit cost for the years ended December 31:

(Dollars in thousands)	2013			2012			2011
Reconciliation of benefit obligation:
Benefit obligation at beginning of year	$	3,181		$	3,203		$	3,135
Interest cost	157			134			171
Actuarial loss (gain) (1)	(173		)	120			173
Benefits paid	(276		)	(276		)	(276		)
Benefit obligation at end of year	$	2,889		$	3,181		$	3,203
Funded status:
Accrued liability as of December 31	$	(2,889	)	$	(3,181	)	$	(3,203	)
Discount rate used for benefit obligation	5.00		%	4.25		%	4.75		%
Net periodic benefit cost:
Interest cost	157			134			171
Actuarial loss (gain) (1)	(173		)	120			173
Net periodic benefit costs	$	(16	)	$	254		$	344

(1) Management utilizes the Moody’s 20 year AA corporate bond rates to establish the reasonableness of the discount rate used. The Company reviews and periodically updates the discount rate to reflect changes in bond market rates.  The impact of the discount rate change is reflected as the actuarial gain or loss.

Benefits expected to be paid in each of the next five years and in the aggregate five years thereafter: 

(Dollars in thousands)
2014	$	276
2015	276
2016	276
2017	276
2018	276
2019-2023	1,379

Supplemental Life Insurance

For certain senior and executive officers on whom the Bank owns BOLI, the Bank has provided supplement life insurance, through endorsement split-dollar life insurance arrangements, which provides a death benefit to the officer’s designated beneficiaries. See Item (j) "Bank Owned Life Insurance" in Note 1, "Summary of Significant Accounting Policies," for further information regarding BOLI.

The Company has recognized a liability for future benefits associated with the supplemental life insurance plan, which is a non-qualified plan, that provides benefit to employees that extends to postretirement periods.

This plan represents a direct liability of the Company, and as such has no specific assets set aside to settle the benefit obligation.  The funded status is the aggregate amount accrued, or the “Accumulated Postretirement Benefit Obligation,” which is the present value of the future retirement benefits associated with this arrangement.

The following table provides a reconciliation of the changes in the supplemental life insurance plan obligation and the net periodic benefit cost for the years ended December 31:

(Dollars in thousands)	2013			2012			2011
Reconciliation of benefit obligation:
Benefit obligation at beginning of year	$	1,664		$	1,414		$	1,317
Service cost	2			8			15
Interest cost	74			67			72
Actuarial loss (gain) (1)	(164		)	175			10
Benefit obligation at end of year	$	1,576		$	1,664		$	1,414
Funded status:
Accrued liability as of December 31	$	(1,576	)	$	(1,664	)	$	(1,414	)
Discount rate used for benefit obligation	5.00		%	4.25		%	4.75		%
Net periodic benefit cost:
Service cost	$	2		$	8		$	15
Interest cost	74			67			72
Actuarial loss (gain) (1)	(164		)	175			10
Total net period (benefit) cost	$	(88	)	$	250		$	97

 (1) Management utilizes the Moody’s 20 year AA corporate bond rates to establish the reasonableness of the discount rate used. The Company reviews and periodically updates the discount rate to reflect changes in bond market rates.  The impact of the discount rate change is reflected as the actuarial gain or loss. 

The amounts charged to expense for the postretirement cost of insurance for split dollar insurance coverage are included in the table above. The Company anticipates accruing an additional $74 thousand to the plan for the year ending December 31, 2014.

See Note 11, “Stock-Based Compensation Plans” below, for additional information regarding employee benefits offered in the form of stock option and restricted stock awards.

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Fair Value Measurements - Quantitative (Details) (Fair Value, Inputs, Level 3, USD $) In Thousands, unless otherwise specified								12 Months Ended				12 Months Ended
	Dec. 31, 2013 Fair Value, Measurements, Recurring FHLB Stock	Dec. 31, 2012 Fair Value, Measurements, Recurring FHLB Stock	Dec. 31, 2013 Fair Value, Measurements, Recurring FHLB Stock FHLB Stated Par Value	Dec. 31, 2013 Fair Value, Measurements, Nonrecurring	Dec. 31, 2012 Fair Value, Measurements, Nonrecurring	Dec. 31, 2013 Fair Value, Measurements, Nonrecurring Impaired loans (collateral dependent) Appraisal of collateral		Dec. 31, 2013 Fair Value, Measurements, Nonrecurring Impaired loans (collateral dependent) Appraisal of collateral Minimum	Dec. 31, 2013 Fair Value, Measurements, Nonrecurring Impaired loans (collateral dependent) Appraisal of collateral Maximum	Dec. 31, 2013 Fair Value, Measurements, Nonrecurring Other real estate owned Appraisal of collateral		Dec. 31, 2013 Fair Value, Measurements, Nonrecurring Other real estate owned Appraisal of collateral Minimum	Dec. 31, 2013 Fair Value, Measurements, Nonrecurring Other real estate owned Appraisal of collateral Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value of assets	$ 4,324	$ 4,260	$ 4,324
Impaired loans (collateral dependent), Fair Value				6,542	7,110	6,542	[1]
Other real estate owned, Fair Value				$ 114	$ 500					$ 114	[1]
Unobservable Input Value or Range								5.00%	50.00%			0.00%	30.00%

[1] Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses.

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Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Interest and dividend income:
Loans and loans held for sale	$ 67,673	$ 64,945	$ 63,363
Investment securities	3,381	3,378	3,539
Other interest-earning assets	68	82	67
Total interest and dividend income	71,122	68,405	66,969
Interest expense:
Deposits	4,058	5,264	7,379
Borrowed funds	96	54	87
Junior subordinated debentures	1,177	1,177	1,177
Total interest expense	5,331	6,495	8,643
Net interest income	65,791	61,910	58,326
Provision for loan losses	3,279	2,750	5,197
Net interest income after provision for loan losses	62,512	59,160	53,129
Non-interest income:
Investment advisory fees	4,285	3,838	3,728
Deposit and interchange fees	4,788	4,500	4,438
Income on bank-owned life insurance,net	459	506	548
Net gains on sales of investment securities	1,239	236	791
Gains on sales of loans	792	989	687
Other income	2,229	2,106	1,750
Total non-interest income	13,792	12,175	11,942
Non-interest expense:
Salaries and employee benefits	33,551	32,034	28,671
Occupancy and equipment expenses	6,035	5,678	5,485
Technology and telecommunications expenses	4,647	4,316	3,886
Advertising and public relations expenses	2,708	2,267	2,661
Audit, legal and other professional fees	1,742	1,675	1,393
Deposit insurance premiums	1,118	1,064	1,319
Supplies and postage expenses	967	925	882
Investment advisory and custodial expenses	540	438	412
Other operating expenses	4,516	4,215	4,257
Total non-interest expense	55,824	52,612	48,966
Income before income taxes	20,480	18,723	16,105
Provision for income taxes	6,951	6,348	5,161
Net income	$ 13,529	$ 12,375	$ 10,944
Basic earnings per share	$ 1.37	$ 1.29	$ 1.16
Diluted earnings per share	$ 1.36	$ 1.28	$ 1.16
Basic weighted average common shares outstanding	9,862,678	9,586,783	9,401,714
Diluted weighted average common shares outstanding	9,950,609	9,660,676	9,445,725

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Allowance For Loan Losses

12 Months Ended

Dec. 31, 2013

Receivables [Abstract]

Allowance for Loan Loss

Allowance for Loan Losses

While Company manages its loan portfolio to avoid concentration by industry and loan size to lessen its credit risk exposure, inherent in the lending process is the risk of loss due to customer non-payment, or “credit risk.”  The Company endeavors to minimize this risk through sound underwriting practices and the risk management function, however, management recognizes that loan losses will occur and that the amount of these losses will fluctuate depending on the risk characteristics of the loan portfolio and economic conditions.

The allowance for loan losses is an estimate of probable credit risk inherent in the loan portfolio as of the specified balance sheet dates.  The Company maintains the allowance at a level that it deems adequate to absorb all reasonably anticipated losses from specifically known and other credit risks associated with the portfolio.  In making its assessment on the adequacy of the allowance, management considers several quantitative and qualitative factors that could have an effect on the credit quality of the portfolio including, individual assessment of larger and high risk credits, delinquency trends and the level of non-performing loans, impaired and restructured loans, net charge-offs, the growth and composition of the loan portfolio, expansion in geographic market area and the strength of the local and national economy, among other factors.

Credit Quality Indicators

The level of adversely classified loans, delinquent and non-performing assets is largely a function of economic conditions, the overall banking environment, the Company's underwriting and credit risk management standards. The Company’s commercial lending focus may entail significant additional risks compared to long term financing on existing, owner-occupied residential real estate.  The Company endeavors to minimize this risk through sound underwriting practices and the risk management function. The credit risk management function focuses on a wide variety of factors, including, among others, current and expected economic conditions, the real estate market, the financial condition of borrowers, the ability of borrowers to adapt to changing conditions or circumstances affecting their business and the continuity of borrowers’ management teams.  Early detection of credit issues is critical to minimize credit losses. Accordingly, management regularly monitors these factors, among others, through ongoing credit reviews by the Credit Department, an external loan review service, reviews by members of senior management and the Loan Committee of the Board of Directors. This review includes the assessment of internal credit quality indicators such as the risk classification of individual loans, individual review of adversely classified loans, past due and non-accrual loans, impaired and restructured loans, and the level of foreclosure activity, as well as trends in the general levels of these indicators.

However, despite prudent loan underwriting and ongoing credit risk management, adverse changes within the Company's market area or deterioration in the local, regional or national economic conditions could negatively impact the portfolio's credit risk profile and the Company's asset quality in the future.

The loan portfolio continued to show improving statistics related to migration of adversely classified, non-accrual, impaired loans and the level of Other Real Estate Owned ("OREO") properties held during the year ended December 31, 2013. However, management believes that the general credit profile of the portfolio and individual commercial relationships will continue to be affected by lagging effects that the economic environment has had on the regional and local commercial markets.

Adversely Classified Loans

The Company's loan risk rating system classifies loans depending on risk of loss characteristics. The classifications range from “substantially risk free” for the highest quality loans and loans that are secured by cash collateral, to the more severe adverse classifications of "substandard," "doubtful" and “loss” based on criteria established under banking regulations.

Loans classified as substandard include those loans characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. These loans are inadequately protected by the sound net worth and paying capacity of the borrower; repayment has become increasingly reliant on collateral liquidation or reliance on guaranties; credit weaknesses are well-defined; borrower cash flow is insufficient to meet the required debt service specified in the loan terms and to meet other obligations, such as trade debt and tax payments.

Loans classified as doubtful have all the weaknesses inherent in a substandard rated loan with the added characteristic that the weaknesses make collection or full payment from liquidation, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. The probability of loss is extremely high, but because of certain important and reasonably specific pending factors which may work to the advantage and strengthening of the loan, its classification as an estimated loss is deferred until more exact status may be determined.

Loans classified as loss are generally considered uncollectible at present, although long term recovery of part or all of loan proceeds may be possible. These “loss” loans would require a specific loss reserve or charge-off.

Adversely classified loans may be accruing or in non-accrual status and may be additionally designated as impaired or restructured, or some combination thereof. Loans which are evaluated to be of weaker credit quality are reviewed on a more frequent basis by management.

The following tables present the credit risk profile by internally assigned risk rating category at the periods indicated.

	December 31, 2013
(Dollars in thousands)	Adversely Classified						Not Adversely Classified		Gross Loans
	Substandard		Doubtful		Loss
Commercial real estate	$	13,545	$	1,266	$	—	$	805,488	$	820,299
Commercial and industrial	7,908		51		236		348,861		357,056
Commercial construction	3,358		—		—		129,149		132,507
Residential	1,012		—		—		131,709		132,721
Home Equity	500		—		—		73,854		74,354
Consumer	40		—		—		8,603		8,643
Total gross loans	$	26,363	$	1,317	$	236	$	1,497,664	$	1,525,580

	December 31, 2012
(Dollars in thousands)	Adversely Classified						Not Adversely Classified		Gross Loans
	Substandard		Doubtful		Loss
Commercial real estate	$	21,999	$	—	$	—	$	688,266	$	710,265
Commercial and industrial	5,993		1,460		48		321,078		328,579
Commercial construction	2,986		—		—		118,381		121,367
Residential	1,254		—		—		119,024		120,278
Home Equity	661		—		—		74,987		75,648
Consumer	34		—		—		4,877		4,911
Total gross loans	$	32,927	$	1,460	$	48	$	1,326,613	$	1,361,048

The decrease in adversely classified loans as of December 31, 2013, as compared to December 2012, was primarily due to paydowns on several commercial relationships, upgraded commercial loans and charge-offs, partially offset by additional credit downgrades during the period.

Past Due and Non-Accrual Loans

Loans on which the accrual of interest has been discontinued are designated as non-accrual loans. Accrual of interest on loans is generally discontinued when a loan becomes contractually past due, with respect to interest or principal, by 90 days, or when reasonable doubt exists as to the full and timely collection of interest or principal. When a loan is placed on non-accrual status, all interest previously accrued but not collected is reversed against current period interest income. Interest accruals are resumed on such loans only when payments are brought current and have remained current for a period of 180 days and when, in the judgment of management, the collectability of both principal and interest is reasonably assured. Interest payments received on loans in a non-accrual status are generally applied to principal on the books of the Company. Additionally, deposit accounts overdrawn for 90 or more days are included in the consumer non-accrual numbers below.

The following table presents an age analysis of past due loans as of December 31, 2013.

(Dollars in thousands)	Loans 30-59 Days Past Due		Loans 60-89 Days Past Due		Non-accrual Loans		Total Past Due Loans		Current Loans		Gross Loans
Commercial real estate	$	1,142	$	1,575	$	10,561	$	13,278	$	807,021	$	820,299
Commercial and industrial	680		908		5,743		7,331		349,725		357,056
Commercial construction	196		—		1,118		1,314		131,193		132,507
Residential	1,110		127		633		1,870		130,851		132,721
Home Equity	211		10		281		502		73,852		74,354
Consumer	106		18		10		134		8,509		8,643
Total gross loans	$	3,445	$	2,638	$	18,346	$	24,429	$	1,501,151	$	1,525,580

The following table presents an age analysis of past due loans as of December 31, 2012.

(Dollars in thousands)	Loans 30-59 Days Past Due		Loans 60-89 Days Past Due		Non-accrual Loans		Total Past Due Loans		Current Loans		Gross Loans
Commercial real estate	$	1,560	$	551	$	12,608	$	14,719	$	695,546	$	710,265
Commercial and industrial	472		55		6,993		7,520		321,059		328,579
Commercial construction	—		—		743		743		120,624		121,367
Residential	42		558		862		1,462		118,816		120,278
Home Equity	73		9		390		472		75,176		75,648
Consumer	42		11		5		58		4,853		4,911
Total gross loans	$	2,189	$	1,184	$	21,601	$	24,974	$	1,336,074	$	1,361,048

At December 31, 2013 and December 31, 2012, all loans 90 or more days past due were carried as non-accruing. Included in the consumer non-accrual numbers in the table above were $3 thousand and $5 thousand of overdraft deposit account balances 90 days or more past due at December 31, 2013 and December 31, 2012, respectively. Non-accrual loans which were not adversely classified amounted to $577 thousand at December 31, 2013 and $1.2 million at December 31, 2012. These balances primarily represented the guaranteed portions of non-performing U.S. Small Business Administration loans. The majority of the non-accrual loan balances were also carried as impaired loans during the periods and are discussed further below.

The ratio of non-accrual loans to total loans amounted to 1.20% and 1.59% at December 31, 2013 and December 31, 2012, respectively.

At December 31, 2013, additional funding commitments for loans on non-accrual status totaled $313 thousand. The Company's obligation to fulfill the additional funding commitments on non-accrual loans is generally contingent on the borrower's compliance with the terms of the credit agreement. If the borrower is not in compliance, additional funding commitments may or may not be made at the Company's discretion.

The reduction in interest income for the years ended December 31, associated with non-accruing loans is summarized as follows:

(Dollars in thousands)	2013		2012		2011
Income in accordance with original loan terms	$	1,171	$	1,490	$	1,545
Less income recognized	680		380		140
Reduction in interest income	$	491	$	1,110	$	1,405

Impaired Loans

Impaired loans are individually significant loans for which management considers it probable that not all amounts due (principal and interest) in accordance with original contractual terms will be collected.  The majority of impaired loans are included within the non-accrual balances; however, not every loan in non-accrual status has been designated as impaired. Impaired loans include loans that have been modified in a troubled debt restructuring (or "TDR", see below). Impaired loans exclude large groups of smaller-balance homogeneous loans, such as residential mortgage loans and consumer loans, which are collectively evaluated for impairment, and loans that are measured at fair value, unless the loan is amended in a TDR.

Management does not set any minimum delay of payments as a factor in reviewing for impaired classification.  Management considers the individual payment status, net worth and earnings potential of the borrower, and the value and cash flow of the collateral as factors to determine if a loan will be paid in accordance with its contractual terms. An impaired or TDR loan classification will be considered for upgrade based on the borrower's sustained performance over time and their improving financial condition, the expectation of the borrower's ability to continue to service the loan in accordance the original or modified terms and the collectability of the remaining balance, and in the case of TDR loans, an interest rate at or greater than a market rate for a similar credit at the time of modification.

Impaired loans are individually evaluated for credit loss and a specific reserve is assigned for the amount of the estimated credit loss.  Refer to heading “Allowance for probable loan losses methodology” contained within this Note 4 for further discussion of management’s methodology used to estimate specific reserves for impaired loans.

Total impaired loans amounted to $29.8 million and $37.4 million at December 31, 2013 and December 31, 2012, respectively.  Total accruing impaired loans amounted to $11.9 million and $16.6 million at December 31, 2013 and December 31, 2012, respectively, while non-accrual impaired loans amounted to $17.9 million and $20.8 million as of December 31, 2013 and December 31, 2012, respectively.  The net decrease in the impaired loans since the prior year was primarily within the commercial real estate portfolio of $7.7 million.The decrease in impaired loans as of December 31, 2013, as compared to December 31, 2012, was primarily due to paydowns on several commercial relationships, upgraded commercial loans and charge-offs, partially offset by additional credit downgrades during the period.

The following table sets forth the recorded investment in impaired loans and the related specific allowance allocated as of December 31, 2013.

(Dollars in thousands)	Unpaid contractual principal balance		Total recorded investment in impaired loans		Recorded investment with no allowance		Recorded investment with allowance		Related specific allowance
Commercial real estate	$	17,420	$	15,139	$	12,105	$	3,034	$	507
Commercial and industrial	12,220		10,579		4,902		5,677		2,901
Commercial construction	3,464		3,358		1,426		1,932		830
Residential	673		619		365		254		107
Home Equity	110		108		—		108		31
Consumer	23		23		—		23		23
Total	$	33,910	$	29,826	$	18,798	$	11,028	$	4,399

The following table sets forth the recorded investment in impaired loans and the related specific allowance allocated as of December 31, 2012.

(Dollars in thousands)	Unpaid contractual principal balance		Total recorded investment in impaired loans		Recorded investment with no allowance		Recorded investment with allowance		Related specific allowance
Commercial real estate	$	24,760	$	22,859	$	18,735	$	4,124	$	1,041
Commercial and industrial	12,184		10,831		6,016		4,815		2,186
Commercial construction	3,091		2,932		995		1,937		753
Residential	687		648		390		258		65
Home Equity	110		109		—		109		87
Consumer	14		14		—		14		14
Total	$	40,846	$	37,393	$	26,136	$	11,257	$	4,146

The following table presents the average recorded investment in impaired loans and the related interest recognized during the year ends indicated.

	December 31, 2013				December 31, 2012				December 31, 2011
(Dollars in thousands)	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
Commercial real estate	$	17,673	$	237	$	23,629	$	560	$	27,404	$	698
Commercial and industrial	9,444		92		9,846		116		9,571		61
Commercial construction	3,227		77		2,377		65		3,880		83
Residential	745		9		753		11		621		2
Home Equity	120		—		54		—		—		2
Consumer	18		2		16		1		19		3
Total	$	31,227	$	417	$	36,675	$	753	$	41,495	$	849

Interest income that was not recognized on loans that were deemed impaired as of December 31, 2013, 2012 and 2011, amounted to $445 thousand, $1.1 million, and $847 thousand, respectively. All payments received on impaired loans in non-accrual status are applied to principal. At December 31, 2013, additional funding commitments for impaired loans totaled $457 thousand. The Company's obligation to fulfill the additional funding commitments on impaired loans is generally contingent on the borrower's compliance with the terms of the credit agreement. If the borrower is not in compliance, additional funding commitments may or may not be made at the Company's discretion.

Troubled Debt Restructures

Loans are designated as a TDR when, as part of an agreement to modify the original contractual terms of the loan, the Bank grants the borrower a concession on the terms, that would otherwise not be considered, as a result of financial difficulties of the borrower.  Typically, such concessions consist of a reduction in interest rate to a below market rate, taking into account the credit quality of the note, or a deferment or reduction of payments (principal or interest), which materially alters the Bank’s position or significantly extends the note’s maturity date, such that the present value of cash flows to be received is materially less than those contractually established at the loan’s origination. All loans that are modified are reviewed by the Company to identify if a TDR has occurred.  Restructured loans are included in the impaired loan category and as such, these loans are individually reviewed and evaluated, and a specific reserve is assigned for the amount of the estimated credit loss.

Total TDR loans, included in the impaired loan figures above as of December 31, 2013 and December 31, 2012, were $20.9 million and $26.6 million, respectively.  The change in balances since December 31, 2012 is discussed above. TDR loans on accrual status amounted to $11.4 million and $16.0 million at December 31, 2013 and December 31, 2012, respectively.  TDR loans included in non-performing loans amounted to $9.5 million and $10.5 million at December 31, 2013 and December 31, 2012, respectively.  The Company continues to work with commercial relationships and enters into loan modifications to the extent deemed to be necessary or appropriate to ensure the best mutual outcome given the current economic environment.

At December 31, 2013, additional funding commitments for TDR loans totaled $145 thousand. The Company's obligation to fulfill the additional funding commitments on non-accrual loans is generally contingent on the borrower's compliance with the terms of the credit agreement. If the borrower is not in compliance, additional funding commitments may or may not be made at the Company's discretion.

The following tables present certain information regarding loan modifications classified as troubled debt restructures.

Troubled debt restructure agreements entered into during the year endedDecember 31, 2013.

(Dollars in thousands)	Number of restructurings	Pre-modification outstanding recorded investment		Post-modification outstanding recorded investment
Commercial real estate	2	$	724	$	673
Commercial and industrial	5	1,903		1,818
Commercial construction	1	769		769
Residential	—	—		—
Home Equity	—	—		—
Consumer	1	4		4
Total	9	$	3,400	$	3,264

Loans modified as troubled debt restructuring within the previous twelve months for which there was a subsequent payment default during the year endedDecember 31, 2013.

(Dollars in thousands)	Number of TDRs that defaulted	Post-modification outstanding recorded investment
Commercial real estate	—	$	—
Commercial and industrial	1	62
Commercial construction	—	—
Residential	—	—
Home Equity	—	—
Consumer	—	—
Total	1	$	62

There were $38 thousand in charge-offs associated with TDRs modified during 2013. At December 31, 2013, specific reserves allocated to the 2013 TDRs amounted to $142 thousand, as management considers it likely the principal will ultimately be collected. Interest payments received on non-accruing 2013 TDR loans which were applied to principal and not recognized as interest income amounted to $55 thousand.

Troubled debt restructure agreements entered into during the year endedDecember 31, 2012.

(Dollars in thousands)	Number of restructurings	Pre-modification outstanding recorded investment		Post-modification outstanding recorded investment
Commercial real estate	3	$	423	$	388
Commercial and industrial	7	2,980		2,975
Commercial construction	3	802		746
Residential	2	386		383
Home Equity	—	—		—
Consumer	—	—		—
Total	15	$	4,591	$	4,492

Loans modified as troubled debt restructuring within the previous twelve months for which there was a subsequent payment default during the year endedDecember 31, 2012.

(Dollars in thousands)	Number of TDRs that defaulted	Post-modification outstanding recorded investment
Commercial real estate	—	$	—
Commercial and industrial	2	10
Commercial construction	—	—
Residential	1	125
Home Equity	—	—
Consumer	—	—
Total	3	$	135

There were $91 thousand in charge-offs associated with TDRs noted in the table above. At December 31, 2012, specific reserves allocated to the 2012 TDRs amounted to $802 thousand as management considered it likely the principal would ultimately be collected. Interest payments received on non-accruing 2012 TDR loans which were applied to principal and not recognized as interest income amounted to $6 thousand.

Other Real Estate Owned

Real estate acquired by the Company through foreclosure proceedings or the acceptance of a deed in lieu of foreclosure is classified as Other Real Estate Owned (“OREO”). When property is acquired, it is generally recorded at the lesser of the loan’s remaining principal balance, net of any unamortized deferred fees, or the estimated fair value of the property acquired, less estimated costs to sell. Any loan balance in excess of the estimated realizable fair value on the date of transfer is charged to the allowance for loan losses on that date. All costs incurred thereafter in maintaining the property, as well as subsequent declines in fair value are charged to non-interest expense.

The carrying value of OREO at December 31, 2013 was $114 thousand and consisted of 1 property, compared to $500 thousand comprised of 1 property at December 31, 2012. During 2013, 2 properties were added to OREO and 2 properties were sold, 1 of which was held at December 31, 2012.  There were $121 thousand of gains realized on the sale of OREO in 2013 and a write down of $23 thousand was recorded on the remaining property to reflect current expected realizable value. There were $87 thousand in gains on OREO sales in 2012.

Allowance for probable loan losses methodology

On a quarterly basis, management prepares an estimate of the allowance necessary to cover estimated credit losses. The Company maintains the allowance at a level that it deems adequate to absorb all reasonably anticipated losses from specifically known and other credit risks associated with the portfolio. The Company uses a systematic methodology to measure the amount of estimated loan loss exposure inherent in the portfolio for purposes of establishing a sufficient allowance for loan losses. The methodology makes use of specific reserves, for loans individually evaluated and deemed impaired, and general reserves, for larger groups of homogeneous loans, which rely on a combination of qualitative and quantitative factors that could have an impact on the credit quality of the portfolio.

Specific Reserves

When a loan is deemed to be impaired, management estimates the credit loss by comparing the loan's carrying value against either 1) the present value of the expected future cash flows discounted at the loan's effective interest rate; 2) the loan's observable market price; or 3) the expected realizable fair value of the collateral, in the case of collateral dependent loans. A specific allowance is assigned to the impaired loan for the amount of estimated credit loss. Impaired loans are charged off, in whole or in part, when management believes that the recorded investment in the loan is uncollectible.

General Reserves

In assessing the general reserves for groups of loans with similar risk characteristics, management has segmented the portfolio by I. Non-classified loans, and II. Adversely classified loans. These groups are further subdivided by loan category or risk rating. Allowance allocation factors for groups of loans with similar risk characteristics are based on each group's historical net charge off rate, which is then adjusted for current qualitative or environmental factors that are likely to cause estimated credit losses associated with the existing portfolio to differ from historical loss experience. Management considers the risk factors and assesses the impact of current issues and changes in those factors to the various portfolio categories on an ongoing basis.

I.Non-classified loans by credit type:

Management has established the historic loss factor for non-classified loans by first calculating average net charge-offs over a period of time, divided by the average loan balance over that same period. The time period utilized equates to the average estimated life for each loan category. This average period may be changed from time to time to be reflective of the most appropriate corresponding conditions (market, economic, etc.).

Key qualitative factors that are likely to cause estimated credit losses as of the evaluation date to differ from the group's historical charge-off rates include:

• Several key areas of expansion and growth, including geographic market, changes in lending staff, new or expanded product lines, changes in and portfolio concentrations;

• Changes in the trend and current volume and severity of past due loans, non-accrual loans and the severity of adversely classified and impaired loans compared to historical levels; and

• The current economic environment and conditions (local, state and national) and their general implications to each loan category.

Management weighs the current effect of each of these areas on each particular loan category in determining the allowance allocation factors.

II.Adversely classified loans by credit rating:

Management has established the historic loss factor for classified loans by first calculating total annual net charge-offs divided by the average annual classified loans. An average of the charge-off ratio is then determined over a trailing period of time. The time period utilized equates to the estimated average period that loans might remain in a particular classified category. This average period may be changed from time to time to be reflective of the most appropriate corresponding conditions (market, economic, etc.).

As with the non-classified loans, management has identified several factors as likely to cause estimated credit losses associated with the adversely classified portfolio to differ from historical loss experience based on management's estimate as to the effect of the qualitative or environmental factors on the level of credit losses inherent in each specific classified category. These factors reflect the significant consideration of the risk inherent in these adversely classified categories already contained in the related historic loss factor, and the fact that individually significant loans with probable loss are excluded from the group and assessed separately.

Key qualitative factors that are likely to cause estimated credit losses as of the evaluation date to differ from the adversely classified group's historical charge-off rates include:

• Key areas of expansion consistent with the non-classified loan expansion and growth noted above and the impact of this growth on adversely classified loans.

• Changes in the current volume and severity of past due loans, the volume of non-accrual loans and the volume and severity of adversely classified loans compared to historical levels.

• The current economic environment and conditions (local, state and national) and their general implications to adversely classified loans that are already experiencing difficulties.

Management weighs the current effect of each of these areas on each particular adversely classified category in determining the allowance allocation factors.

Management must exercise significant judgment when evaluating the effect of these factors on the amount of the allowance for loan losses because data may not be reasonably available or directly applicable to determine the precise impact of a factor on the collectability of the loan portfolio as of the evaluation date.

Management has identified above what it deems to be the most significant qualitative factors, however, management recognizes that additional issues may also impact the estimate of credit losses to some degree. From time to time management will re-evaluate the qualitative factors in use in order to consider the impact of other issues which, based on changing circumstances, may become more significant in the future.

Allowance for Loan Loss Activity

The allowance for loan losses is established through a provision for loan losses, a direct charge to earnings. Loan losses are charged against the allowance when management believes that the collectability of the loan principal is unlikely. Recoveries on loans previously charged-off are credited to the allowance.

During the fourth quarter of 2012, the Company purchased a group of residential mortgage loans with a December 31, 2013 carrying value of $14.1 million. These purchased loans were initially booked at fair market value and, in accordance with accounting guidance, do not carry an initial allowance for loan losses. Management will continue to closely monitor this portfolio of non-classified loans for estimated credit loss under general loss allocations taking into account the loss experience as well as the quantitative and qualitative factors identified above.

Changes in the allowance for loan losses for the years ended December 31, are summarized as follows:

(Dollars in thousands)	2013		2012		2011
Balance at beginning of year	$	24,254	$	23,160	$	19,415
Provision charged to operations	3,279		2,750		5,197
Loan recoveries	415		519		294
Less: Loans charged-off	981		2,175		1,746
Balance at end of year	$	26,967	$	24,254	$	23,160

The level of loan growth for the year ended December 31, 2013 was $164.4 million, compared to $87.8 million, excluding $26.4 million of purchased residential loans, during the same period in 2012. For the year ended December 31, 2013, the Company recorded net charge-offs of $566 thousand, the majority of which had reserves specifically allocated in prior periods. Management continues to closely monitor the non-performing assets, charge-offs and necessary allowance levels, including specific reserves. The allowance for loan losses to total loans ratio was 1.77% at December 31, 2013, compared to 1.78% at December 31, 2012. Contributing to the decline in this ratio was the improving credit quality statistics discussed above. Based on the foregoing, as well as management’s judgment as to the existing credit risks inherent in the loan portfolio, Management believes the Company’s allowance for loan losses is deemed adequate to absorb probable losses from specifically known and other credit risks associated with the portfolio as of December 31, 2013.

Changes in the allowance for loan losses by segment for the year ended December 31, 2013, are presented below:

(Dollars in thousands)	Cmml Real Estate		Cmml and Industrial		Cmml Constr			Resid. Mortgage		Home Equity			Cnsmr		Total
Beg. Balance, 12/31/12	$	11,793	$	7,297	$	3,456		$	854	$	728		$	126	$	24,254
Provision	1,491		1,658		(41		)	111		(52		)	112		3,279
Recoveries	96		80		78			128		21			12		415
Less: Charge offs	206		670		—			36		44			25		981
Ending Balance, 12/31/13	$	13,174	$	8,365	$	3,493		$	1,057	$	653		$	225	$	26,967
Ending allowance balance allotted to:
Loans individually evaluated for impairment	$	507	$	2,901	$	830		$	107	$	31		$	23	$	4,399
Loans collectively evaluated for impairment	$	12,667	$	5,464	$	2,663		$	950	$	622		$	202	$	22,568

Changes in the allowance for loan losses by segment for the year ended December 31, 2012, are presented below:

(Dollars in thousands)	Cmml Real Estate		Cmml and Industrial		Cmml Constr		Resid. Mortgage		Home Equity		Cnsmr		Total
Beg. Balance, 12/31/11	$	10,855	$	7,568	$	3,013	$	995	$	615	$	114	$	23,160
Provision	1,185		656		597		34		251		27		2,750
Recoveries	29		461		2		10		2		15		519
Less: Charge offs	276		1,388		156		185		140		30		2,175
Ending Balance, 12/31/12	$	11,793	$	7,297	$	3,456	$	854	$	728	$	126	$	24,254
Ending allowance balance allotted to:
Loans individually evaluated for impairment	$	1,041	$	2,186	$	753	$	65	$	87	$	14	$	4,146
Loans collectively evaluated for impairment	$	10,752	$	5,111	$	2,703	$	789	$	641	$	112	$	20,108

The balances of loans as of December 31, 2013 by segment and evaluation method are summarized as follows:

(Dollars in thousands)	Loans individually evaluated for impairment		Loans collectively evaluated for impairment			Total Loans
Commercial real estate	$	15,139	$	805,160		$	820,299
Commercial and industrial	10,579		346,477			357,056
Commercial construction	3,358		129,149			132,507
Residential	619		132,102			132,721
Home Equity	108		74,246			74,354
Consumer	23		8,620			8,643
Deferred Fees	—		(1,524		)	(1,524		)
Total loans	$	29,826	$	1,494,230		$	1,524,056

See the section titled "Impaired Loans" above, for information regarding the changes in impaired loans balances at December 31, 2013 compared to the prior year.

The balances of loans as of December 31, 2012 by segment and evaluation method are summarized as follows:

(Dollars in thousands)	Loans individually evaluated for impairment		Loans collectively evaluated for impairment			Total Loans
Commercial real estate	$	22,859	$	687,406		$	710,265
Commercial and industrial	10,831		317,748			328,579
Commercial construction	2,932		118,435			121,367
Residential	648		119,630			120,278
Home Equity	109		75,539			75,648
Consumer	14		4,897			4,911
Deferred Fees	—		(1,393		)	(1,393		)
Total loans	$	37,393	$	1,322,262		$	1,359,655

XML

Loans

12 Months Ended

Dec. 31, 2013

Receivables [Abstract]

Loans

Loans

The Company specializes in lending to business entities, non-profit organizations, professionals and individuals. The Company’s primary lending focus is on the development of high quality commercial relationships achieved through active business development efforts, long-term relationships with established commercial developers, strong community involvement and focused marketing strategies.  Loans made to businesses include commercial mortgage loans, construction and land development loans, secured and unsecured commercial loans and lines of credit, and standby letters of credit.  The Company also originates equipment lease financing for businesses. Loans made to individuals include conventional residential mortgage loans, home equity loans and lines, residential construction loans on primary and secondary residences, and secured and unsecured personal loans and lines of credit. The Company manages its loan portfolio to avoid concentration by industry and loan size to lessen its credit risk exposure.

See Note 4, "Allowance for Loan Losses," for Information on the Company's credit risk management, non-accrual, impaired and troubled debt restructured loans and the allowance for loan losses.

Major classifications of loans at the periods indicated, are as follows:

(Dollars in thousands)	December 31, 2013			December 31, 2012
Real estate:
Commercial real estate	$	820,299		$	710,265
Commercial construction	132,507			121,367
Residential mortgages	132,721			120,278
Total real estate	1,085,527			951,910
Commercial and industrial	357,056			328,579
Home equity	74,354			75,648
Consumer	8,643			4,911
Gross loans	1,525,580			1,361,048
Deferred loan origination fees, net	(1,524		)	(1,393		)
Total loans	1,524,056			1,359,655
Allowance for loan losses	(26,967		)	(24,254		)
Net loans	$	1,497,089		$	1,335,401

Loan Categories

Commercial loans:

Commercial real estate loans include loans secured by both owner-use and non-owner occupied real estate. These loans are typically secured by a variety of commercial and industrial property types including one-to-four family and multi-family apartment buildings, office or mixed-use facilities, strip shopping centers, or other commercial properties and are generally guaranteed by the principals of the borrower. Commercial real estate loans generally have repayment periods of approximately fifteen to twenty-five years. Variable interest rate loans have a variety of adjustment terms and indices, and are generally fixed for an initial period before periodic rate adjustments begin.

Commercial and industrial loans include seasonal revolving lines of credit, working capital loans, equipment financing (including equipment leases), and term loans. Also included in commercial and industrial loans are loans partially guaranteed by the U. S. Small Business Administration (SBA), and loans under various programs issued in conjunction with the Massachusetts Development Finance Agency and other agencies. Commercial and industrial credits may be unsecured loans and lines to financially strong borrowers, secured in whole or in part by real estate unrelated to the principal purpose of the loan or secured by inventories, equipment, or receivables, and are generally guaranteed by the principals of the borrower. Variable rate loans and lines in this portfolio have interest rates that are periodically adjusted, with loans generally having fixed initial periods.  Commercial and industrial loans have average repayment periods of one to seven years.

Commercial construction loans include the development of residential housing and condominium projects, the development of commercial and industrial use property, and loans for the purchase and improvement of raw land. These loans are secured in whole or in part by the underlying real estate collateral and are generally guaranteed by the principals of the borrowers. Construction lenders work to cultivate long-term relationships with established developers. The Company limits the amount of financing provided to any single developer for the construction of properties built on a speculative basis. Funds for construction projects are disbursed as pre-specified stages of construction are completed. Regular site inspections are performed, either by experienced construction lenders on staff or by independent outside inspection companies, at each construction phase, prior to advancing additional funds. Commercial construction loans generally are periodically adjusted variable rate loans and lines and generally have terms of one to three years.

From time to time, the Company participates with other banks in the financing of certain commercial projects. In some cases, the Company may act as the lead lender, originating and servicing the loans, but participating out a portion of the funding to other banks. In other cases, the Company may participate in loans originated by other institutions. In each case, the participating bank funds a percentage of the loan commitment and takes on the related risk. In each case in which the Company participates in a loan, the rights and obligations of each participating bank are divided proportionately among the participating banks in an amount equal to their share of ownership and with equal priority among all banks. The balances participated out to other institutions are not carried as assets on the Company's financial statements. Loans originated by other banks in which the Company is the participating institution are carried in the loan portfolio at the Company's pro rata share of ownership. The Company performs an independent credit analysis of each commitment and a review of the participating institution prior to participation in the loan. Loans originated by other banks in which the Company is the participating institution amounted to $34.5 million at December 31, 2013 and $28.6 million at December 31, 2012.

Standby letters of credit are conditional commitments issued by the Company to guarantee the financial obligation or performance by a customer to a third party. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. If the letter of credit is drawn upon, a loan is created for the customer, generally a commercial loan, with the same criteria associated with similar commercial loans.

Residential loans:

Enterprise originates conventional mortgage loans on one-to-four family residential properties. These properties may serve as the borrower's primary residence, or be vacation homes or investment properties. Loan to value limits vary, generally from 80% for adjustable rate and multi-family, owner occupied properties, up to 97% for fixed rate loans on single family, owner occupied properties, with mortgage insurance coverage required for loan-to-value ratios greater than 80% based on program parameters. In addition, financing is provided for the construction of owner occupied primary and secondary residences. Residential mortgage loans may have terms of up to 30 years at either fixed or adjustable rates of interest. Fixed and adjustable rate residential mortgage loans are generally originated using secondary market underwriting and documentation standards.

Depending on the current interest rate environment, management projections of future interest rates and the overall asset-liability management program of the Company, management may elect to sell those fixed and adjustable rate residential mortgage loans which are eligible for sale in the secondary market, or hold some or all of this residential loan production for the Company's portfolio. Mortgage loans are generally not pooled for sale, but instead sold on an individual basis. The Company may retain or sell the servicing when selling the loans. Loans sold are subject to standard secondary market underwriting and eligibility representations and warranties over the life of the loan and are subject to an early payment default period covering the first four payments for certain loan sales. Loans classified as held for sale are carried as a separate line item on the balance sheet.

Home equity loans and lines of credit:

Home equity term loans are originated for one-to-four family residential properties with maximum original loan to value ratios generally up to 80% of the assessed or appraised value of the property securing the loan. Home equity loan payments consist of monthly principal and interest based on amortization ranging from three to fifteen years. The rates may also be fixed for three to fifteen years.

The Company originates home equity revolving lines of credit for one-to-four family residential properties with maximum original loan to value ratios generally up to 80% of the appraised value of the property securing the loan. Home equity lines generally have interest rates that adjust monthly based on changes in the Prime Rate, although minimum rates may be applicable. Some home equity line rates may be fixed for a period of time and then adjusted monthly thereafter. The payment schedule for home equity lines requires interest only payments for the first ten years of the lines. Generally at the end of ten years, the line may be frozen to future advances, and principal plus interest payments are collected over a fifteen-year amortization schedule or, for eligible borrowers meeting certain requirements, the line availability may be extended for an additional interest only period.

Consumer loans:

Consumer loans primarily consist of secured or unsecured personal loans, loans under energy efficiency financing programs in conjunction with Massachusetts public utilities, and overdraft protection lines on checking accounts extended to individual customers. The aggregate amounts of overdrawn deposit accounts are reclassified as loan balances.

Related Party Loans

Certain of the Company's directors, officers, principal stockholders and their associates are credit customers of the Company in the ordinary course of business. In addition, certain directors are also directors, trustees, officers or stockholders of corporations and non-profit entities or members of partnerships that are customers of the Bank and that enter into loan and other transactions with the Bank in the ordinary course of business. All loans and commitments included in such transactions are on such terms, including interest rates, repayment terms and collateral, as those prevailing at the time for comparable transactions with persons who are not affiliated with the Bank and do not involve more than a normal risk of collectability or present other features unfavorable to the Bank.

As of December 31, 2013 and 2012, the outstanding loan balances to directors, officers, principal stockholders and their associates were $12.1 million and $12.4 million, respectively. All loans to these related parties were current and accruing at those dates. Unadvanced portions of lines of credit available to these individuals were $4.1 million and $2.7 million, as of December 31, 2013 and 2012, respectively. During 2013, new loans and net increases in loan balances or lines of credit under existing commitments of $654 thousand were made and principal paydowns of $988 thousand were received.

Loans Serviced for Others

At December 31, 2013 and 2012, the Company was servicing residential mortgage loans owned by investors amounting to $20.6 million and $22.2 million, respectively. Additionally, the Company was servicing commercial loans participated out to various other institutions amounting to $52.1 million and $53.6 million at December 31, 2013 and 2012, respectively. See the discussion above for further information regarding commercial participations.

Loans Serving as Collateral

Loans designated as qualified collateral and pledged to the FHLB for borrowing capacity for the periods indicated are summarized below:

(Dollars in thousands)	December 31, 2013		December 31, 2012
Commercial real estate	$	320,908	$	216,080
Residential mortgages	97,626		94,552
Home equity	17,548		18,907
Total loans pledged to FHLB	$	436,082	$	329,539

During the third quarter of 2013, as part of its regular liquidity management review, the Company pledged additional commercial real estate loans to the FHLB to provide additional borrowing capacity.

Tax Exempt Interest

Tax exempt interest earned on qualified commercial loans was $1.3 million for the year ended December 31, 2013 and $1.4 million and $1.2 million for the years ended December 31, 2012 and 2011, respectively. Average tax exempt loan balances were $31.1 million and $31.6 million for the years ended December 31, 2013 and 2012, respectively.

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Parent Company Only Financial Statements

12 Months Ended

Dec. 31, 2013

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Parent Company Only Financial Statements

Parent Company Only Financial Statements

Balance Sheets

	December 31,
(Dollars in thousands)	2013		2012
Assets
Cash	$	729	$	542
Investment in subsidiaries	161,580		149,963
Other assets	233		242
Total assets	$	162,542	$	150,747
Liabilities and Stockholders’ Equity
Liabilities
Junior subordinated debentures	$	10,825	$	10,825
Accrued interest payable	370		370
Other liabilities	13		3
Total liabilities	11,208		11,198
Stockholders' equity:
Preferred stock, $0.01 par value per share; 1,000,000 shares authorized; no shares issued	—		—
Common stock $0.01 par value per share; 20,000,000 shares authorized; 9,992,560 issued and outstanding at December 31, 2013 (including 170,365 shares of unvested participating restricted awards) and 9,676,477 shares issued and outstanding at December 31, 2012 (including 154,186 shares of unvested participating restricted awards)	100		97
Additional paid-in capital	52,936		48,194
Retained earnings	96,153		87,159
Accumulated other comprehensive income	2,145		4,099
Total stockholders’ equity	$	151,334	$	139,549
Total liabilities and stockholders’ equity	$	162,542	$	150,747

Statements of Income

	For the years ended December 31,
(Dollars in thousands)	2013			2012			2011
Equity in undistributed net income of subsidiaries	$	13,571		$	10,910		$	9,356
Dividends distributed by subsidiaries	950			2,350			3,000
Total income	14,521			13,260			12,356
Interest expense	1,177			1,177			1,177
Other operating expenses	225			171			225
Total operating expenses	1,402			1,348			1,402
Income before income taxes	13,119			11,912			10,954
Provision for (benefit from) income taxes	(410		)	(463		)	10
Net income	$	13,529		$	12,375		$	10,944

Parent Company Only Financial Statements

Statements of Cash Flows

	For the years ended December 31,
(Dollars in thousands)	2013			2012			2011
Cash flows from operating activities:
Net income	$	13,529		$	12,375		$	10,944
Adjustments to reconcile net income to net cash
Equity in undistributed net income of subsidiaries	(13,571		)	(10,910		)	(9,356		)
Payment from subsidiary bank for stock compensation expense	1,652			1,253			1,003
Changes in:
Other assets	9			(145		)	5
Other liabilities	10			(2		)	2
Net cash provided by operating activities	1,629			2,571			2,598
Cash flows from financing activities:
Cash dividends paid	(4,535		)	(4,215		)	(3,945		)
Proceeds from issuance of common stock	1,239			1,274			1,254
Proceeds from exercise of stock options	1,829			509			309
Tax benefit from exercise of stock options	25			2			4
Net cash used in financing activities	(1,442		)	(2,430		)	(2,378		)
Net increase in cash and cash equivalents	187			141			220
Cash and cash equivalents, beginning of year	542			401			181
Cash and cash equivalents, end of year	$	729		$	542		$	401

The Parent Company’s Statements of Comprehensive Income and Statements of Changes in Stockholders’ Equity are identical to the Consolidated Statements of Changes in Stockholders’ Equity and therefore are not presented here.

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Stock-Based Compensation Plans

12 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation Plans

Stock-Based Compensation Plans

The Company currently has two individual stock incentive plans: the 2003 plan as amended in 2009, and the 2009 plan as amended in 2012. The plans permit the Board of Directors to grant, under various terms, both incentive and non-qualified stock options (for the purchase of newly issued shares of common stock), restricted stock, restricted stock units and stock appreciation rights to officers and other employees, directors and consultants. These plans also allow for newly issued shares of common stock to be issued without restrictions, to officers and other employees, directors and consultants.  As of December 31, 2013, 400,301 shares remain available for future grants under the 2009 plan. The 2003 plan is closed to future grants, although several awards previously granted under this plan remain outstanding and may be exercised in the future.

To date, the Company has utilized the plans to issue stock option awards and restricted stock awards to officers, other employees and directors, and stock compensation in lieu of cash fees to directors.  No options or other awards of any kind have been granted to consultants.

Total stock-based compensation expense related to these plans was $1.7 million, $1.3 million and $1.0 million for the years ended 2013, 2012 and 2011 respectively.  The total tax benefit recognized related to the stock-based compensation expense was $660 thousand, $507 thousand and $415 thousand for the years ended 2013, 2012 and 2011, respectively.

Stock Option Awards

Accounting guidance requires that the stock-based compensation expense recognized in earnings be based on the amount of awards ultimately expected to vest; therefore, a forfeiture assumption must be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. The Company has estimated forfeitures based on historical experience for the portion of the grant which had vested and/or grants already vested based on similarities in the type of options and employee group.

Options granted in 2013 will vest 50% in year two and 50% in year four, on the anniversary date of the awards. Options that are outstanding and have been granted under the plans prior to 2013 generally vest ratably over four years. Vested options are only exercisable while the employee remains employed with the Bank and for a limited period thereafter.  Options outstanding at December 31, 2013 consist of options granted in 2007 through 2012 which expire seven years from the grant date, and options granted in 2013 which expire ten years from the grant date.  The 2010 and prior awards provide for accelerated vesting of the entire grant for those who are age 62 on the grant date or upon attaining age 62 during the normal vesting period. For all awards, if a grantee’s employment or other service relationship, such as service as a director, is terminated for any reason, then any stock options granted that have not vested as of the time of such termination generally must be forfeited, unless the Compensation Committee or the Board of Directors, as the case may be, waives such forfeiture requirement.

Under the terms of the plans, stock options may not be granted at less than 100% of the fair market value of the shares on the date of grant and may not have a term of more than ten years.  Any shares of common stock reserved for issuance pursuant to options granted under the 2009 plan that are returned to the Company unexercised shall remain available for issuance under such plan, while the plan is open. For participants owning 10% or more of the Company’s outstanding common stock (of which there are currently none), incentive stock options may not be granted at less than 110% of the fair market value of the shares on the date of grant and may not have an expiration term of more than five years.

The Company utilizes the Black-Scholes option valuation model in order to determine the per share grant date fair value of option grants.  The table below provides a summary of the options granted, fair value, the fair value as a percentage of the market value of the stock at the date of grant and the average assumptions used in the model for the years indicated.

	2013			2012			2011
Options granted	47,684			68,750			83,075
Average assumptions used in the model:
Expected volatility	48		%	50		%	45		%
Expected dividend yield	2.96		%	2.89		%	2.91		%
Expected life in years	7.0			5.5			5.5
Risk-free interest rate	1.35		%	1.37		%	2.17		%
Market price on date of grant	$	16.61		$	16.25		$	14.88
Per share weighted average fair value	$	6.66		$	6.33		$	5.28
Fair Value as a percentage of market value at grant date	40		%	39		%	35		%

The expected volatility is the anticipated variability in the Company’s share price over the expected life of the option base on the Company's historical volatility. 

The expected dividend yield is the Company’s projected dividends based on historical annualized dividend yield to coincide with volatility divided by its share price at the date of grant.

The expected life represents the period of time that the option is expected to be outstanding.  The Company utilized the simplified method and under this method, the expected term equals the vesting term plus the contractual term divided by 2.

The risk-free interest rate is based on the U.S. Treasury rate in effect at the time of grant for a period equivalent to the expected life of the option.

Stock option transactions during the year ended December 31, 2013 are summarized as follows:

(Dollars in thousands, except per share data)	Options	Weighted Average Exercise Price Per Share		Weighted Average Remaining Life in Years	Aggregate Intrinsic Value
Outstanding December 31, 2012	649,211	$	14.28	2.6	$	1,462
Granted	47,684	16.61
Exercised	273,529	14.63
Forfeited/Expired	6,014	13.31
Outstanding December 31, 2013	417,352	$	14.32	3.5	$	2,857
Vested and Exercisable at December 31, 2013	265,252	$	13.59	2.1	$	2,012

The aggregate intrinsic value in the table above represents the difference between the closing price of the Company’s common stock on December 31, 2013 and the exercise price, multiplied by the number of options.  If the closing price was less than the exercise price of the option, no intrinsic value was assigned to the grant.  At December 31, 2013, vested and exercisable options totaling 265,252 were in-the money.  The intrinsic value of options vested and exercisable represents the total pretax intrinsic value that would have been received by the option holders had all in-the-money vested option holders exercised their options on December 31, 2013. The intrinsic value will change based on the fair market value of the Company’s stock.

Cash received from option exercises was $1.8 million, $509 thousand and $309 thousand in 2013, 2012 and 2011, respectively.  Total intrinsic value of options exercised was $1.1 million, $151 thousand and $101 thousand in 2013, 2012 and 2011, respectively.

The actual tax benefit arising during the period for the tax deduction from the disqualifying disposition of shares acquired upon exercise was $25 thousand, $2 thousand and $4 thousand in 2013, 2012, and 2011, respectively.

Compensation expense recognized in association with the stock option awards amounted to $422 thousand, $255 thousand and $230 thousand for the years ended 2013, 2012 and 2011, respectively.  The total tax benefit recognized related to the stock option expense was $165 thousand, $101 thousand, and $91 thousand for the years ended 2013, 2012, and 2011, respectively.

As of December 31, 2013, there was $620 thousand of unrecognized stock-based compensation expense, net of estimated forfeitures, related to non-vested stock options. That cost is expected to be recognized over the remaining weighted average vesting period of 2.3 years.

Restricted Stock Awards

Stock-based compensation expense recognized in association with the restricted stock award amounted to $1.0 million for the year ended December 31, 2013, $832 thousand for the year ended December 31, 2012, and $639 thousand for the year ended December 31, 2011.  The total tax benefit recognized related to restricted stock compensation expense was $418 thousand, $332 thousand, and $257 thousand for the years ended 2013, 2012, and 2011, respectively.

During 2013, the Company granted 80,541 shares of common stock in the form of restricted stock awards. The awards were comprised of 26,660 shares awarded to employees, generally vesting over four years beginning on or about the first anniversary date of the award, 47,735 shares awarded to certain individuals that are performance based awards which vest upon the Company achieving certain predefined performance objectives, and 6,146 shares awarded to directors vesting over two years in equal portions beginning on or about the first anniversary date of the award.  The weighted average grant date fair value of the restricted stock awarded during 2013 was $16.43 per share, which reflects the market value of the common stock on the grant dates.

During 2012, the Company granted 72,376 shares of common stock in the form of restricted stock awards comprised of 63,160 shares awarded to employees, generally vesting over four years, 6,216 shares awarded to directors vesting over two years, and 3,000 shares awarded to an executive officer vesting immediately.  The weighted average grant date fair value of the restricted stock awarded during 2012 was $16.24 per share, which reflects the market value of the common stock on the grant dates. The unvested 2012 awards generally vest, in each case, in equal portions beginning on or about the first anniversary date of the award.

The restricted stock awards allow for the receipt of dividends, and the voting of all shares, whether or not vested, throughout the vesting periods at the same proportional level as common shares outstanding.

If a grantee’s employment or other service relationship, such as service as a director, is terminated for any reason, then any shares of restricted stock that have not vested as of the time of such termination generally must be forfeited, unless the Compensation Committee or the Board of Directors, as the case may be, waives such forfeiture requirement.

The following table sets forth a summary of the activity for the Company’s restricted stock awards.

(Dollars in thousands, except per share data)	Restricted Stock	Weighted Average Grant Price Per Share		Weighted Average Remaining Life In Years	Aggregate Intrinsic Value
Unvested at December 31, 2012	154,186	$	14.58	2.3	$	2,547
Granted	80,541	16.43
Vested/released	62,053	13.65
Forfeited	2,309	15.72
Unvested at December 31, 2013	170,365	$	15.77	2.2	$	3,607

As of December 31, 2013, there remained $1.8 million of unrecognized compensation expense related to the restricted stock awards.  That cost is expected to be recognized over the remaining vesting period of 2.5 years.

Director Stock Compensation in Lieu of Fees

In addition to restricted stock awards discussed above, the members of the Company’s Board of Directors may opt to receive newly issued shares of the Company’s common stock in lieu of cash compensation for attendance at Board and Board Committee meetings.  Directors must make an irrevocable election to receive shares of common stock in lieu of cash fees prior to December 31st of the preceding year.  Directors are granted shares of common stock in lieu of cash fees at a per share price which reflects the market value of the common stock on the first business day of the year.

Total directors' fee expense amounted to $356 thousand, $355 thousand and $368 thousand for the years ended December 31, 2013, 2012 and 2011, respectively. Included in the 2013 expense was stock compensation in lieu of cash fees of $194 thousand, which represented 11,136 shares issued to Directors in January 2014, at a fair market value price of $17.43 per share, which reflected the fair value of the common stock on January 2, 2013. Included in the 2012 expense was stock compensation of $184 thousand, which represented 12,592 shares issued to Directors in January 2013, at a fair market value price of $14.63 per share, which reflected the fair value of the common stock on January 3, 2012. Included in the 2011 expense was stock compensation of $166 thousand, which represented 12,132 shares issued to Directors in January 2012, at a fair market value price of $13.65 per share, which reflected the fair value of the common stock on January 3, 2011.

The total tax benefit recognized related to the expense of Director stock compensation for attendance was $77 thousand, $74 thousand and $67 thousand, for the years ended 2013, 2012 and 2011, respectively.

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Parent Company Only Financial Statements - Income Statement (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Interest expense	$ 1,313	$ 1,313	$ 1,331	$ 1,374	$ 1,438	$ 1,534	$ 1,676	$ 1,847	$ 5,331	$ 6,495	$ 8,643
Income before income taxes	5,137	5,437	4,685	5,221	4,774	4,823	4,341	4,785	20,480	18,723	16,105
Provision for (benefit from) income tax	1,653	1,904	1,606	1,788	1,540	1,760	1,436	1,612	6,951	6,348	5,161
Net income	3,484	3,533	3,079	3,433	3,234	3,063	2,905	3,173	13,529	12,375	10,944
Parent
Condensed Financial Statements, Captions [Line Items]
Equity in undistributed net income of subsidiaries									13,571	10,910	9,356
Dividend distributed by subsidiaries									950	2,350	3,000
Total income									14,521	13,260	12,356
Interest expense									1,177	1,177	1,177
Other operating expenses									225	171	225
Total operating expenses									1,402	1,348	1,402
Income before income taxes									13,119	11,912	10,954
Provision for (benefit from) income tax									(410)	(463)	10
Net income									$ 13,529	$ 12,375	$ 10,944

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Borrowed Funds and Debentures

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Borrowed Funds and Debentures

Borrowed Funds and Debentures

Borrowed funds and debentures outstanding at December 31 are summarized as follows:

	2013				2012				2011
(Dollars in thousands)	Amount		Average Rate		Amount		Average Rate		Amount		Average Rate
Borrowed funds	36,534		0.30	%	26,540		0.44	%	4,494		1.83	%
Junior subordinated debentures	10,825		10.88	%	10,825		10.88	%	10,825		10.88	%
Total borrowed funds and debentures	$	47,359	2.72	%	$	37,365	3.46	%	$	15,319	8.22	%

At December 31, 2013, 2012, and 2011, borrowed funds were comprised of FHLB borrowings.

FHLB borrowings at December 31, 2013 consisted of $34.8 million of overnight borrowings, with a weighted average rate of 0.28%, and term borrowings of $1.7 million, scheduled to mature within the next year, with a weighted average rate of 0.66%. These term borrowings, with original maturities of one to two years, are linked to certain outstanding commercial loans under various community investment programs of the FHLB.

Maximum FHLB and other borrowings outstanding at any month end during 2013, 2012, and 2011 were $57.4 million, $26.5 million, and $4.8 million, respectively.

The Company did not have any repurchase agreements for securities sold during the years ended December 31, 2013 or December 31, 2012. The maximum amount outstanding at any month end during 2011 was $763 thousand.

The following table summarizes the average balance and average cost of borrowed funds for the years ended December 31,

	Year ended December 31,
	2013				2012				2011
(Dollars in thousands)	Average Balance		Average Cost		Average Balance		Average Cost		Average Balance		Average Cost
FHLB advances	$	24,385	0.39	%	$	3,552	1.50	%	$	4,684	1.82	%
Other borrowings	14		0.46	%	89		0.27	%	170		0.25	%
Repurchase agreements	—		—	%	—		—	%	373		0.31	%
Total borrowed funds	$	24,399	0.39	%	$	3,641	1.47	%	$	5,227	1.66	%

The Company’s primary borrowing source is the FHLB, but the Company may choose to borrow from other established business partners.  “Other borrowings” represents overnight advances from the FRB or federal funds purchased from correspondent banks. 

As a member of the FHLB, the Bank has the potential capacity to borrow an amount up to the value of its discounted qualified collateral. Borrowings from the FHLB are secured by certain securities from the Company’s investment portfolio not otherwise pledged and certain residential and commercial real estate loans.  At December 31, 2013, based on qualifying collateral less outstanding advances, the Bank had the capacity to borrow additional funds from the FHLB of up to approximately $300.0 million.   In addition, based on qualifying collateral, the Bank had the capacity to borrow funds from the FRB Discount Window of up to approximately $60.0 million. The Bank also has pre-approved borrowing arrangements with large correspondent banks in order to provide overnight and short-term borrowing capacity.

See Note 2, "Investments," and Note 3, "Loans" above to these consolidated financial statements for further information regarding securities and loans pledged for borrowed funds.

In March 2000, Enterprise (MA) Capital Trust I (the “Trust”), a subsidiary of Enterprise Bancorp, issued $10.5 million of 10.875% trust preferred securities that mature in 2030 and are callable, at a premium if called between 2010 and 2020. To date, the Company has not called any portion of these trust preferred securities.  The proceeds from the sale of the trust preferred securities in March 2000 were used by the Trust, along with the Company’s $325 thousand capital contribution, to acquire $10.8 million in aggregate principal amount of the Company’s 10.875% Junior Subordinated Debt Securities that mature in 2030 and are callable.

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Deposits - Maturities (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deposits [Abstract]
Average maturity of brokered deposits	5 years
Due in less than twelve months, Less than $100,000	$ 75,065
Due in less than twelve months, $100,000 and Greater	83,296
Due in less than twelve months, Total	158,361
Due in over one year through two years, Less than $100,000	14,137
Due in over one year through two years, $100,000 and Greater	12,806
Due in over one year through two years, Total	26,943
Due in over two years through three years, Less than $100,000	5,213
Due in over two years through three years, $100,000 and Greater	9,085
Due in over two years through three years, Total	14,298
Due in over three years through four years, Less than $100,000	17,954
Due in over three years through four years, $100,000 and Greater	1,399
Due in over three years through four years, Total	19,353
Due in over four years through five years, Less than $100,000	16,577
Due in over four years through five years, $100,000 and Greater	0
Due in over four years through five years, Total	16,577
Due in over five years, Less than $100,000	16,118
Due in over five years, $100,000 and Greater	0
Due in over five years, Total	16,118
Total certificates of deposit, Less than $100,000	145,064
Total of certificates of deposit, $100,000 and Greater	106,586
Total certificates of deposit	251,650
Interest expense on certificates of deposit with balances of $100,000 or more	$ 872	$ 1,400	$ 1,900

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Premises and Equipment

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Premises and Equipment

Premises and Equipment

Premises and equipment at December 31 are summarized as follows:

(Dollars in thousands)	2013			2012
Land	$	4,594		$	4,594
Buildings, renovations and leasehold improvements	30,516			28,283
Computer software and equipment	8,088			7,560
Furniture, fixtures and equipment	14,239			12,254
Total premises and equipment, before accumulated depreciation	57,437			52,691
Less accumulated depreciation	(27,546		)	(25,485		)
Total premises and equipment, net of accumulated depreciation	$	29,891		$	27,206

Total depreciation expense related to premises and equipment amounted to $3.9 million, $3.7 million and $3.8 million for the years ended December 31, 2013, 2012 and 2011, respectively.

Total rent expense for the years ended December 31, 2013, 2012 and 2011 amounted to $910 thousand, $858 thousand and $809 thousand, respectively.

The Company's leased facilities are contracted under various non-cancelable operating leases, most of which provide options to extend lease periods and periodic rent adjustments. Several leases provide the Company the right of first refusal should the property be offered for sale or purchase options at specified periods mutually agreeable to the parties. 

At December 31, 2013, minimum lease payments for these operating leases were as follows:

(Dollars in thousands)
Payable in:
2014	$	1,087
2015	882
2016	911
2017	908
2018	747
Thereafter	3,842
Total minimum lease payments	$	8,377

The Company currently collects rent through leases for a small portion of the overall square-footage within its campus headquarters. Rental income was $150 thousand, $198 thousand and $255 thousand for the years ended December 31, 2013, 2012 and 2011, respectively.

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Deposits

12 Months Ended

Dec. 31, 2013

Deposits [Abstract]

Deposits

Deposits

Deposits at December 31 are summarized as follows:

(Dollars in thousands)	2013		2012
Non-interest demand deposits	$	435,465	$	386,643
Interest bearing checking	222,837		210,564
Savings	150,215		154,680
Money market	575,825		491,942
Certificates of deposit less than $100,000	95,530		106,904
Certificates of deposit of $100,000 or more	104,553		121,262
Total non-brokered deposits (1)	1,584,425		1,471,995
Brokered deposits (2)	51,567		3,032
Total deposits	$	1,635,992	$	1,475,027

(1) Includes reciprocal money market deposits and CDs received from participating banks in nationwide networks as a result of our customers electing to participate in programs to obtain full FDIC insurance. Essentially, the equivalent of the original deposit comes back to the Company as non-brokered deposits within the appropriate category under total deposits on the balance sheet.

(2) Primarily brokered CDs under $100,000.

The aggregate amount of overdrawn deposits that have been reclassified as loan balances were $1.4 million and $700 thousand at December 31, 2013 and 2012, respectively.

The following table shows the scheduled maturities of certificates of deposit (including brokered deposits with average maturities of 5 years) with balances less than $100,000 and greater than $100,000 at December 31, 2013:

(Dollars in thousands)	Less than $100,000		$100,000 and Greater		Total
Due in less than twelve months	$	75,065	$	83,296	$	158,361
Due in over one year through two years	14,137		12,806		26,943
Due in over two years through three years	5,213		9,085		14,298
Due in over three years through four years	17,954		1,399		19,353
Due in over four years through five years	16,577		—		16,577
Due in over five years	16,118		—		16,118
Total certificates of deposit	$	145,064	$	106,586	$	251,650

Interest expense on certificates of deposit with balances of $100,000 or more amounted to $872 thousand, $1.4 million and $1.9 million, in 2013, 2012 and 2011, respectively.

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Commitments, Contingencies and Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Commitments, Contingencies and Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk

Commitments, Contingencies and Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk

The Company is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers.  These financial instruments include commitments to originate loans, standby letters of credit and unadvanced portions of loans and lines of credit.

The instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheets.  The contract amounts of these instruments reflect the extent of involvement the Company has in the particular classes of financial instruments.

The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for loan commitments and standby letters of credit is represented by the contractual amounts of those instruments.  The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments.

Financial instruments with off-balance sheet credit risk at December 31, 2013 and 2012 are as follows:

(Dollars in thousands)	2013		2012
Commitments to originate loans	$	34,182	$	46,408
Commitments to originate residential mortgages loans for sale	2,007		9,325
Commitments to sell residential mortgage loans	3,262		17,882
Standby letters of credit	17,116		13,547
Unadvanced portions of commercial real estate loans	11,640		8,445
Unadvanced portions of commercial loans and lines	261,356		233,274
Unadvanced portions of construction loans (commercial & residential)	131,183		78,428
Unadvanced portions of home equity lines	60,281		57,511
Unadvanced portions of consumer loans	3,056		3,059

Commitments to originate loans are agreements to lend to a customer provided there is no violation of any condition established in the contract.  Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee.  Since some of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.  The Company evaluates each customer’s credit worthiness on a case-by-case basis.  The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the borrower.  Unadvanced portions of consumer loans include credit card loans and overdraft protection lines.

The Company originates residential mortgage loans under agreements to sell such loans, and may retain or sell the servicing when selling the loans.  Loans sold are subject to standard secondary market underwriting and eligibility representations and warranties over the life of the loan, and are subject to an early payment default period covering the first four payments for certain loan sales.

Standby letters of credit are conditional commitments issued by the Company to guarantee the financial obligation or performance by a customer to a third party.  The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers.  If the letter of credit is drawn upon, the Company creates a loan for the customer with the same criteria associated with similar loans.

Unadvanced portions of loans and lines of credit represent credit extended to customers but not yet drawn upon, and are secured or guaranteed under preexisting loan agreements.   Commercial loans and lines may be collateralized by the assets underlying the borrower’s business such as accounts receivable, equipment, inventory and real property or may be unsecured loans and lines to financially strong borrowers and are generally guaranteed by the principals of the borrower.  Commercial real estate loans are generally secured by the underlying real property and rental agreements. Residential mortgage and home equity loans are secured by the real property financed.  Consumer loans such as installment loans are generally secured by the personal property financed, while credit card loans are generally unsecured.  The Company manages its loan portfolio to avoid concentration by industry or loan size to minimize its credit risk exposure.

The Bank is required by the FRB to maintain in reserves certain amounts of vault cash and/or deposits with the FRB. The average daily reserve requirement included in “Cash and Due from Banks” was approximately $11.2 million and $7.8 million, based on the two week computation periods encompassing December 31, 2013, and 2012, respectively.

There are no material pending legal proceedings to which the Company or its subsidiaries are a party or to which any of its property is subject, other than ordinary routine litigation incidental to the business of the Company. Management does not believe resolution of any present litigation will have a material adverse effect on the financial condition or results of operations of the Company.

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Commitments, Contingencies and Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk (Details) (USD $)													12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Commercial real estate	Dec. 31, 2012 Commercial real estate	Dec. 31, 2013 Commercial and industrial	Dec. 31, 2012 Commercial and industrial	Dec. 31, 2013 Commercial and residential	Dec. 31, 2012 Commercial and residential	Dec. 31, 2013 Home Equity	Dec. 31, 2012 Home Equity	Dec. 31, 2013 Consumer	Dec. 31, 2012 Consumer	Dec. 31, 2013 Residential payment
Other Commitments [Line Items]
Commitments to Originate Loans	$ 34,182,000	$ 46,408,000
Commitments to Originate Loans for Sale	2,007,000	9,325,000
Commitments to Sell Residential Mortgage Loans	3,262,000	17,882,000
Standby Letters of Credit	17,116,000	13,547,000
Financial instruments with off-balance sheet credit risk			11,640,000	8,445,000	261,356,000	233,274,000	131,183,000	78,428,000	60,281,000	57,511,000	3,056,000	3,059,000
Federal Reserve Bank average daily reserve requirement included in Cash and Due from Banks	$ 11,200,000	$ 7,800,000
Early payment default period													4

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Parent Company Only Financial Statements - Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 1989
Cash flows from operating activities:
Net income	$ 13,529	$ 12,375	$ 10,944
Changes in:
Net cash provided by operating activities	35,784	13,956	20,453
Cash flows from financing activities:
Cash dividends paid	(4,535)	(4,215)	(3,945)
Proceeds from issuance of common stock	1,239	1,274	1,254	15,500
Proceeds from exercise of stock options	1,829	509	309
Tax benefit from exercise of stock options	25	2	4
Net cash used in financing activities	169,517	161,485	75,662
Net increase in cash and cash equivalents	998	13,604	(15,875)
Cash and cash equivalents, beginning of year	52,735	39,131	55,006
Cash and cash equivalents, end of year	53,733	52,735	39,131
Parent
Cash flows from operating activities:
Net income	13,529	12,375	10,944
Adjustments to reconcile net income to net cash
Equity in undistributed net income of subsidiaries	(13,571)	(10,910)	(9,356)
Payment from subsidiary bank for stock compensation expense	1,652	1,253	1,003
Changes in:
Other assets	9	(145)	5
Other liabilities	10	(2)	2
Net cash provided by operating activities	1,629	2,571	2,598
Cash flows from financing activities:
Cash dividends paid	(4,535)	(4,215)	(3,945)
Proceeds from issuance of common stock	1,239	1,274	1,254
Proceeds from exercise of stock options	1,829	509	309
Tax benefit from exercise of stock options	25	2	4
Net cash used in financing activities	(1,442)	(2,430)	(2,378)
Net increase in cash and cash equivalents	187	141	220
Cash and cash equivalents, beginning of year	542	401	181
Cash and cash equivalents, end of year	$ 729	$ 542	$ 401

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Stockholders' Equity - Regulatory Capital Requirements (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Allowance for Loan Losses Included in Total Capital, as Percentage of Risk Weighted Assets	1.25%
Total Capital, Actual, Amount	$ 174,145		$ 157,716
Total Capital (to risk weighted assets), Actual, Ratio	11.35%		11.46%
Total Capital, Minimum Capital for Capital Adequacy Purposes, Amount	122,752		110,079
Total Capital (to risk weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	8.00%		8.00%
Total Capital, Minimum Capital To Be Well Capitalized, Amount	153,440		137,599
Total Capital (to risk weighted assets), Minimum Capital To Be Well Capitalized, Ratio	10.00%		10.00%
Tier 1 Risk Based Capital, Actual, Amount	153,425		139,714
Tier 1 Risk Based Capital (to risk weighted assets), Actual, Ratio	10.00%		10.15%
Tier 1 Risk Based Capital, Minimum Capital for Capital Adequacy Purposes, Amount	61,376		55,040
Tier 1 Risk Based Capital (to risk weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	4.00%		4.00%
Tier 1 Risk Based Capital, Minimum Capital To Be Well Capitalized, Amount	92,064		82,560
Tier 1 Risk Based Capital (to risk weighted assets), Minimum Capital To Be Well Capitalized, Ratio	6.00%		6.00%
Tier 1 Leverage Capital, Actual, Amount	153,425		139,714
Tier 1 Leverage Capital (to average assets), Actual, Ratio	8.48%		8.64%
Tier 1 Leverage Capital, Minimum Capital for Capital Adequacy Purposes, Amount	72,375		64,716
Tier 1 Leverage Capital (to average assets), Minimum Capital for Capital Adequacy Purposes, Ratio	4.00%		4.00%
The Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total Capital, Actual, Amount	173,126		156,883
Total Capital (to risk weighted assets), Actual, Ratio	11.28%		11.40%
Total Capital, Minimum Capital for Capital Adequacy Purposes, Amount	122,744		110,075
Total Capital (to risk weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	8.00%		8.00%
Total Capital, Minimum Capital To Be Well Capitalized, Amount	153,430		137,594
Total Capital (to risk weighted assets), Minimum Capital To Be Well Capitalized, Ratio	10.00%		10.00%
Tier 1 Risk Based Capital, Actual, Amount	152,408		138,882
Tier 1 Risk Based Capital (to risk weighted assets), Actual, Ratio	9.93%		10.09%
Tier 1 Risk Based Capital, Minimum Capital for Capital Adequacy Purposes, Amount	61,372		55,037
Tier 1 Risk Based Capital (to risk weighted assets), Minimum Capital for Capital Adequacy Purposes, Ratio	4.00%		4.00%
Tier 1 Risk Based Capital, Minimum Capital To Be Well Capitalized, Amount	92,058		82,556
Tier 1 Risk Based Capital (to risk weighted assets), Minimum Capital To Be Well Capitalized, Ratio	6.00%		6.00%
Tier 1 Leverage Capital, Actual, Amount	152,408		138,882
Tier 1 Leverage Capital (to average assets), Actual, Ratio	8.43%		8.59%
Tier 1 Leverage Capital, Minimum Capital for Capital Adequacy Purposes, Amount	72,343		64,684
Tier 1 Leverage Capital (to average assets), Minimum Capital for Capital Adequacy Purposes, Ratio	4.00%		4.00%
Tier 1 Leverage Capital, Minimum Capital To Be Well Capitalized, Amount	$ 90,428		$ 80,855
Tier 1 Leverage Capital (to average assets), Minimum Capital To Be Well Capitalized, Ratio	5.00%	[1]	5.00%	[1]

[1] For the Bank to qualify as “well capitalized”, it must maintain a leverage capital ratio (Tier 1 capital to average assets) of at least 5%. This requirement does not apply to the Company.

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Borrowed Funds and Debentures - Average Balances (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Debt Disclosure [Abstract]
FHLB advances, Average Balance	$ 24,385	$ 3,552	$ 4,684
FHLB advances, Average Rate	0.39%	1.50%	1.82%
Other borrowings, Average Balance	14	89	170
Other borrowings, Average Rate	0.46%	0.27%	0.25%
Repurchase agreements, Average Balance	0	0	373
Repurchase agreements, Average Rate	0.00%	0.00%	0.31%
Total borrowed funds, Average Balance	$ 24,399	$ 3,641	$ 5,227
Total borrowed funds, Average Rate	0.39%	1.47%	1.66%

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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The Company’s and the Bank’s actual capital amounts and ratios are presented in the following tables.

	Actual				Minimum Capital for Capital Adequacy Purposes				Minimum Capital To Be Well Capitalized*
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2013
The Company
Total Capital (to risk weighted assets)	$	174,145	11.35	%	$	122,752	8.00	%	$	153,440	10.00	%
Tier 1 Capital (to risk weighted assets)	153,425		10.00	%	61,376		4.00	%	92,064		6.00	%
Tier 1 Capital (to average assets)*	153,425		8.48	%	72,375		4.00	%	N/A		N/A
The Bank
Total Capital (to risk weighted assets)	$	173,126	11.28	%	$	122,744	8.00	%	$	153,430	10.00	%
Tier 1 Capital (to risk weighted assets)	152,408		9.93	%	61,372		4.00	%	92,058		6.00	%
Tier 1 Capital (to average assets)	152,408		8.43	%	72,343		4.00	%	90,428		5.00	%

____________________

* For the Bank to qualify as “well capitalized”, it must maintain a leverage capital ratio (Tier 1 capital to average assets) of at least 5%.  This requirement does not apply to the Company.

	Actual				Minimum Capital for Capital Adequacy Purposes				Minimum Capital To Be Well Capitalized*
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2012
The Company
Total Capital (to risk weighted assets)	$	157,716	11.46	%	$	110,079	8.00	%	$	137,599	10.00	%
Tier 1 Capital (to risk weighted assets)	139,714		10.15	%	55,040		4.00	%	82,560		6.00	%
Tier 1 Capital (to average assets)*	139,714		8.64	%	64,716		4.00	%	N/A		N/A
The Bank
Total Capital (to risk weighted assets)	$	156,883	11.40	%	$	110,075	8.00	%	$	137,594	10.00	%
Tier 1 Capital (to risk weighted assets)	138,882		10.09	%	55,037		4.00	%	82,556		6.00	%
Tier 1 Capital (to average assets)	138,882		8.59	%	64,684		4.00	%	80,855		5.00	%

_____________________

* For the Bank to qualify as “well capitalized”, it must maintain a leverage capital ratio (Tier 1 capital to average assets) of at least 5%.  This requirement does not apply to the Company.

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Allowance For Loan Losses - Past Due and Non-Accrual Loans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Schedule of Aging of Financing Receivables [Line Items]
Number of days a loan must be paid current before accrual of interest is resumed	180 days
Loans 30-59 Days Past Due	$ 3,445	$ 2,189
Loans 60-89 Days Past Due	2,638	1,184
Non-accrual loans	18,346	21,601
Total Past Due Loans	24,429	24,974
Current Loans	1,501,151	1,336,074
Gross loans	1,525,580	1,361,048
The ratio of non-accrual loans to total loans	1.20%	1.59%
Additional funding commitments for loans on non-accrual	313
Commercial real estate
Schedule of Aging of Financing Receivables [Line Items]
Loans 30-59 Days Past Due	1,142	1,560
Loans 60-89 Days Past Due	1,575	551
Non-accrual loans	10,561	12,608
Total Past Due Loans	13,278	14,719
Current Loans	807,021	695,546
Gross loans	820,299	710,265
Commercial and industrial
Schedule of Aging of Financing Receivables [Line Items]
Loans 30-59 Days Past Due	680	472
Loans 60-89 Days Past Due	908	55
Non-accrual loans	5,743	6,993
Total Past Due Loans	7,331	7,520
Current Loans	349,725	321,059
Gross loans	357,056	328,579
Commercial construction
Schedule of Aging of Financing Receivables [Line Items]
Loans 30-59 Days Past Due	196	0
Loans 60-89 Days Past Due	0	0
Non-accrual loans	1,118	743
Total Past Due Loans	1,314	743
Current Loans	131,193	120,624
Gross loans	132,507	121,367
Residential
Schedule of Aging of Financing Receivables [Line Items]
Loans 30-59 Days Past Due	1,110	42
Loans 60-89 Days Past Due	127	558
Non-accrual loans	633	862
Total Past Due Loans	1,870	1,462
Current Loans	130,851	118,816
Gross loans	132,721	120,278
Home Equity
Schedule of Aging of Financing Receivables [Line Items]
Loans 30-59 Days Past Due	211	73
Loans 60-89 Days Past Due	10	9
Non-accrual loans	281	390
Total Past Due Loans	502	472
Current Loans	73,852	75,176
Gross loans	74,354	75,648
Consumer
Schedule of Aging of Financing Receivables [Line Items]
Deposit liabilities reclassified as loans receivable, 90 days or more past due	3	5
Loans 30-59 Days Past Due	106	42
Loans 60-89 Days Past Due	18	11
Non-accrual loans	10	5
Total Past Due Loans	134	58
Current Loans	8,509	4,853
Gross loans	8,643	4,911
Not Adversely Classified
Schedule of Aging of Financing Receivables [Line Items]
Gross loans	1,497,664	1,326,613
Non-accrual loans not adversely classified	577	1,200
Not Adversely Classified | Commercial real estate
Schedule of Aging of Financing Receivables [Line Items]
Gross loans	805,488	688,266
Not Adversely Classified | Commercial and industrial
Schedule of Aging of Financing Receivables [Line Items]
Gross loans	348,861	321,078
Not Adversely Classified | Commercial construction
Schedule of Aging of Financing Receivables [Line Items]
Gross loans	129,149	118,381
Not Adversely Classified | Residential
Schedule of Aging of Financing Receivables [Line Items]
Gross loans	131,709	119,024
Not Adversely Classified | Home Equity
Schedule of Aging of Financing Receivables [Line Items]
Gross loans	73,854	74,987
Not Adversely Classified | Consumer
Schedule of Aging of Financing Receivables [Line Items]
Gross loans	$ 8,603	$ 4,877

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Earnings per share

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Earnings per share

Earnings per share

The table below presents the increase in average shares outstanding, using the treasury stock method, for the diluted earnings per share calculation for the years ended December 31st:

	2013	2012	2011
Basic weighted average common shares outstanding	9,862,678	9,586,783	9,401,714
Dilutive shares	87,931	73,893	44,011
Diluted weighted average common shares outstanding	9,950,609	9,660,676	9,445,725

At December 31, 2013 and 2012 there were 527 and 119,236 average outstanding stock options, respectively, which were excluded from the calculations of diluted earnings per share, due to the exercise price exceeding the average market price of the Company’s common stock.  These options, which were not dilutive at that date, may potentially dilute earnings per share in the future.

See Item (q) “Earnings Per Share,” contained in Note 1, “Summary of Significant Accounting Policies,” for additional information regarding the earnings per share calculation.

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Property, Plant and Equipment, Useful Lives

Depreciation or amortization is computed on a straight-line basis over the lesser of the estimated useful lives of the asset or the respective lease term (with reasonably assured renewal options) for leasehold improvements generally as follows:

Buildings, renovations and leasehold improvements	10 to 39 years
Computer software and equipment	3 to 5 years
Furniture, fixtures and equipment	3 to 10 years

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Loans - Loans Serving as Collateral (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financial Instruments Owned and Pledged as Collateral [Line Items]
Loans pledged to the FHLB for borrowing capacity	$ 436,082	$ 329,539
Commercial real estate
Financial Instruments Owned and Pledged as Collateral [Line Items]
Loans pledged to the FHLB for borrowing capacity	320,908	216,080
Residential
Financial Instruments Owned and Pledged as Collateral [Line Items]
Loans pledged to the FHLB for borrowing capacity	97,626	94,552
Home Equity
Financial Instruments Owned and Pledged as Collateral [Line Items]
Loans pledged to the FHLB for borrowing capacity	$ 17,548	$ 18,907

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Quarterly Results of Operations (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	2013
(Dollars in thousands, except share data)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Interest and dividend income	$	17,193	$	17,458	$	17,946	$	18,525
Interest expense	1,374		1,331		1,313		1,313
Net interest income	15,819		16,127		16,633		17,212
Provision for loan losses	783		534		583		1,379
Net interest income after provision for loan losses	15,036		15,593		16,050		15,833
Non-interest income	3,159		3,085		3,085		3,224
Net gains on sales of investment securities	480		468		83		208
Non-interest expense	13,454		14,461		13,781		14,128
Income before income taxes	5,221		4,685		5,437		5,137
Provision for income taxes	1,788		1,606		1,904		1,653
Net income	$	3,433	$	3,079	$	3,533	$	3,484
Basic earnings per share	$	0.35	$	0.31	$	0.36	$	0.35
Diluted earnings per share	$	0.35	$	0.31	$	0.35	$	0.35

	2012
(Dollars in thousands, except share data)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Interest and dividend income	$	16,776	$	17,087	$	17,182	$	17,360
Interest expense	1,847		1,676		1,534		1,438
Net interest income	14,929		15,411		15,648		15,922
Provision for loan losses	300		1,050		800		600
Net interest income after provision for loan losses	14,629		14,361		14,848		15,322
Non-interest income	2,927		2,840		2,947		3,225
Net gains on sales of investment securities	47		112		38		39
Non-interest expense	12,818		12,972		13,010		13,812
Income before income taxes	4,785		4,341		4,823		4,774
Provision for income taxes	1,612		1,436		1,760		1,540
Net income	$	3,173	$	2,905	$	3,063	$	3,234
Basic earnings per share	$	0.33	$	0.30	$	0.32	$	0.34
Diluted earnings per share	$	0.33	$	0.30	$	0.32	$	0.33

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Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net income	$ 13,529	$ 12,375	$ 10,944
Other comprehensive income, net of taxes:
Gross unrealized holding gains on investments arising during the period	(1,910)	1,625	2,670
Income tax expense	752	(569)	(953)
Net unrealized holding gains, net of tax	(1,158)	1,056	1,717
Less: Reclassification adjustment for impairment included in net income:
Other than temporary impairment loss arising during the period	0	0	(3)
Income tax benefit	0	0	1
Reclassification adjustment for impairment realized, net of tax	0	0	(2)
Less: Reclassification adjustment for net gains included in net income
Net realized gains on sales of securities during the period	1,239	236	791
Income tax expense	(443)	(83)	(278)
Reclassification adjustment for gains realized, net of tax	796	153	513
Total other comprehensive income (loss)	(1,954)	903	1,206
Comprehensive income	$ 11,575	$ 13,278	$ 12,150

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Investments

12 Months Ended

Dec. 31, 2013

Investments, Debt and Equity Securities [Abstract]

Investments

Investments

The amortized cost and fair values of investments at December 31, 2013 and 2012 are summarized as follows:

	2013
(Dollars in thousands)	Amortized cost		Unrealized gains		Unrealized losses		Fair Value
Federal agency obligations(1)	$	55,440	$	146	$	43	$	55,543
Federal agency mortgage backed securities (MBS)(1)	80,997		367		1,714		79,650
Municipal securities	60,675		1,604		325		61,954
Corporate bonds	5,080		29		55		5,054
Total fixed income securities	202,192		2,146		2,137		202,201
Equity investments	9,960		3,228		20		13,168
Total available for sale investments, at fair value	$	212,152	$	5,374	$	2,157	$	215,369

	2012
(Dollars in thousands)	Amortized cost		Unrealized gains		Unrealized losses		Fair Value
Federal Agency Obligations(1)	$	65,247	$	438	$	—	$	65,685
Federal Agency mortgage backed securities (MBS)(1)	48,429		1,287		42		49,674
Municipal securities	53,437		3,103		17		56,523
Corporate bonds	1,905		15		6		1,914
Total fixed income securities	169,018		4,843		65		173,796
Equity investments	9,080		1,622		34		10,668
Total available for sales investments, at fair value	$	178,098	$	6,465	$	99	$	184,464

(1) These categories may include investments issued or guaranteed by government sponsored enterprises such as Fannie Mae (FNMA), Freddie Mac (FHLMC), Ginnie Mae (GNMA), Federal Farm Credit Bank (FFCB), or one of several Federal Home Loan Banks (FHLBs). All agency MBS/CMO investments owned by the Company are backed by residential mortgages.

Included in federal agency MBS were Collateralized Mortgage Obligations (“CMO’s”) with fair values totaling $17.4 million and $23.6 million at December 31, 2013 and 2012.

At December 31, 2013, the equity portfolio consisted primarily of investments in a diversified group of mutual funds, with a small portion of the portfolio (approximately 14%) invested in exchange traded funds and individual common stock of entities in the financial services industry. 

The following tables summarize investments having temporary impairment, due to the fair market values having declined below the amortized costs of the individual investments, and the period that the investments have been impaired at December 31, 2013 and 2012.

	2013
	Less than 12 months				12 months or longer				Total
(Dollars in thousands)	Fair Value		Unrealized Losses		Fair value		Unrealized Losses		Fair Value		Unrealized Losses
Federal Agency Obligations	$	14,026	$	43	$	—	$	—	$	14,026	$	43
Federal agency MBS	$	56,554	$	1,176	$	8,457	$	538	$	65,011	$	1,714
Municipal securities	12,791		292		609		33		13,400		325
Corporate bonds	2,100		39		433		16		2,533		55
Equity investments	749		16		21		4		770		20
Total temporarily impaired investments	$	86,220	$	1,566	$	9,520	$	591	$	95,740	$	2,157

	2012
	Less than 12 months				12 months or longer				Total
(Dollars in thousands)	Fair Value		Unrealized Losses		Fair value		Unrealized Losses		Fair Value		Unrealized Losses
Federal agency MBS	$	9,954	$	42	$	—	$	—	$	9,954	$	42
Municipal securities	1,996		17		—		—		1,996		17
Corporate bonds	1,063		6		—		—		1,063		6
Equity investments	172		2		453		32		625		34
Total temporarily impaired investments	$	13,185	$	67	$	453	$	32	$	13,638	$	99

The net unrealized gain or loss in the Company's fixed income portfolio fluctuates as market interest rates rise and fall.  Due to the fixed rate nature of this portfolio, as market rates fall the value of the portfolio rises, and as market rates rise, the value of the portfolio declines.  The unrealized gains or losses on fixed income investments will also decline as the securities approach maturity or if the issuer is credit impaired. Unrealized gains or losses will be recognized in the statements of income if the securities are sold. However, if an unrealized loss on the fixed income portfolio is deemed to be other than temporary, the credit loss portion is charged to earnings and the noncredit portion is recognized in accumulated other comprehensive income. Net unrealized appreciation and depreciation on investments available for sale, net of applicable income taxes, are reflected as a component of accumulated other comprehensive income.

The net unrealized gain or loss on equity securities will fluctuate based on changes in the market value of the mutual funds and individual securities held in the portfolio.  Unrealized gains or losses will be recognized in the statements of income if the securities are sold. However, if an unrealized loss on an equity security is deemed to be other than temporary prior to a sale, the loss is charged to earnings.

Management regularly reviews the portfolio for securities with unrealized losses that are other-than-temporarily impaired. During the years ended December 31, 2013 and 2012, the Company did not record any fair value impairment charges on its investments. As of December 31, 2013, there were 73 securities in an unrealized loss position in the Company's portfolio (fixed income and equity), with a fair value of $95.7 million, in an unrealized loss position totaling $2.2 million. Management attributes these unrealized losses to increases in current market yields compared to the yields at the time the investments were purchased by the Company. Management does not consider these investments to be other-than-temporarily impaired at December 31, 2013 because the decline in market value is attributable to changes in interest rates and not credit quality for fixed income securities, or a fundamental deterioration in the equity funds or issuers, and because the Company does not intend to, and it is more likely than not that it will not be required to, sell those investments prior to a market price recovery or maturity.

In assessing MBS investments, the contractual cash flows of these investments are guaranteed by an agency of the U.S. Government, and the agency that issued these securities is sponsored by the U.S. Government. Accordingly, it is expected that the securities would not be settled at a price less than the par value of the Company's investments. Management's assessment of other fixed income investments within the portfolio includes reviews of market pricing, ongoing credit evaluations, assessment of the investment's materiality, and duration of the unrealized loss position. In addition, the Company utilizes an outside registered investment adviser to manage the corporate and municipal bond portfolios, within prescribed guidelines set by management. For equities and funds, management's assessment includes the severity of the declines, whether it is unlikely that the security or fund will completely recover its unrealized loss within a reasonable time period and if the equity security or fund exhibits fundamental deterioration.

The contractual maturity distribution of total fixed income investments at December 31, 2013 is as follows:

	Within One Year				After One, but within  Five Years				After Five, but within Ten Years				After Ten Years
(Dollars in thousands)	Amount		Yield		Amount		Yield		Amount		Yield		Amount		Yield
At amortized cost:
Federal agency obligations	$	10,030	0.82	%	$	42,443	0.78	%	$	2,967	1.97	%	$	—	—	%
MBS	—		—	%	3,341		2.45	%	7,562		3.02	%	70,094		2.14	%
Municipal securities	3,349		2.04	%	20,023		2.83	%	31,135		4.40	%	6,168		6.42	%
Corporate bonds	—		—	%	3,387		1.54	%	1,693		2.68	%	—		—	%
Total fixed income securities	$	13,379	1.12	%	$	69,194	1.49	%	$	43,357	3.93	%	$	76,262	2.49	%
At fair value:
Total fixed income securities	$	13,439			$	69,864			$	43,996			$	74,902

Scheduled contractual maturities may not reflect the actual maturities of the investments. MBS/CMO securities are shown at their final maturity, however due to prepayments and amortization the actual MBS/CMO cash flows likely will be faster than presented above. Similarly, included in the carrying value of fixed income investments above are callable securities, comprised of municipal securities, federal agency obligations and corporate bonds with amortized cost and fair values of $46.7 million and $47.7 million, respectively, at December 31, 2013. Management considers these factors when evaluating the net interest margin in the Company's asset-liability management program.

From time to time the Company may pledge securities as collateral against deposit account balances of municipal deposit customers, for FHLB borrowing capacity and collateral for borrowing from the Federal Reserve Bank of Boston ("FRB").  The fair value of securities pledged as collateral for these purposes was $202.2 million at December 31, 2013 and $173.6 million at December 31, 2012. 

Sales of investments for the years ended December 31, 2013, 2012, and 2011 are summarized as follows:

(Dollars in thousands)	2013			2012			2011
Amortized cost of investments sold	$	8,325		$	3,309		$	10,553
Gross realized gains on sales	1,243			241			791
Gross realized losses on sales	(4		)	(5		)	—
Total proceeds from sales of investments	$	9,564		$	3,545		$	11,344

Tax exempt interest earned on the municipal securities portfolio was $2.1 million for the year ended December 31, 2013, $1.9 million for the year ended December 31, 2012 and $1.7 million for the year ended December 31, 2011.

See Item (c) “Investments,” contained in Note 1, “Summary of Significant Accounting Policies,” for additional information regarding the accounting for the Company’s investments portfolio. See also Note 14, “Fair Value Measurements,” for additional information regarding the Company’s fair value measurement of investments.

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Premises and Equipment - Operating Leases (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Abstract]
2014	$ 1,087
2015	882
2016	911
2017	908
2018	747
Thereafter	3,842
Total minimum lease payments	8,377
Operating Leases, Rent Expense	910	858	809
Rental income	$ 150	$ 198	$ 255

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Fair Value Measurements - Balance Sheet Grouping (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Fair Value, Inputs, Level 1
Financial assets:
Loans held for sale	$ 0	[1]	$ 0	[1]
Loans, net	0	[1]	0	[1]
Financial liabilities:
Borrowed funds	0	[1]	0	[1]
Junior subordinated debentures	0	[1]	0	[1]
Fair Value, Inputs, Level 2
Financial assets:
Loans held for sale	1,255	[1]	8,603	[1]
Loans, net	0	[1]	0	[1]
Financial liabilities:
Borrowed funds	36,535	[1]	26,553	[1]
Junior subordinated debentures	0	[1]	0	[1]
Fair Value, Inputs, Level 3
Financial assets:
Loans held for sale	0	[1]	0	[1]
Loans, net	1,516,809	[1]	1,355,893	[1]
Financial liabilities:
Borrowed funds	0	[1]	0	[1]
Junior subordinated debentures	11,358	[1]	12,597	[1]
Fair Value
Financial assets:
Loans held for sale	1,255	[1]	8,603	[1]
Loans, net	1,516,809	[1]	1,355,893	[1]
Financial liabilities:
Borrowed funds	36,535	[1]	26,553	[1]
Junior subordinated debentures	11,358	[1]	12,597	[1]
Carrying Amount
Financial assets:
Loans held for sale	1,255	[1]	8,557	[1]
Loans, net	1,497,089	[1]	1,335,401	[1]
Financial liabilities:
Borrowed funds	36,534	[1]	26,540	[1]
Junior subordinated debentures	10,825	[1]	10,825	[1]
Certificates of Deposit | Fair Value, Inputs, Level 1
Financial liabilities:
Certificates of deposit	0	[1]	0	[1]
Certificates of Deposit | Fair Value, Inputs, Level 2
Financial liabilities:
Certificates of deposit	250,045	[1]	231,687	[1]
Certificates of Deposit | Fair Value, Inputs, Level 3
Financial liabilities:
Certificates of deposit	0	[1]	0	[1]
Certificates of Deposit | Fair Value
Financial liabilities:
Certificates of deposit	250,045	[1]	231,687	[1]
Certificates of Deposit | Carrying Amount
Financial liabilities:
Certificates of deposit	$ 251,650	[1]	$ 231,198	[1]

[1] Excluded from this table are certain financial instruments that approximated their fair value, as they were short-term in nature or payable on demand. These include cash and cash equivalents, accrued interest receivable, non-term deposit accounts, and accrued interest payable. The respective carrying values of these instruments would all be considered to be classified within Level 1 of their fair value hierarchy.

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Employee Benefit Plans - Expected Future Benefit Payments for SERP (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]
2014	$ 276
2015	276
2016	276
2017	276
2018	276
2019-2023	$ 1,379

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Investments (Tables)

12 Months Ended

Dec. 31, 2013

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

The amortized cost and fair values of investments at December 31, 2013 and 2012 are summarized as follows:

	2013
(Dollars in thousands)	Amortized cost		Unrealized gains		Unrealized losses		Fair Value
Federal agency obligations(1)	$	55,440	$	146	$	43	$	55,543
Federal agency mortgage backed securities (MBS)(1)	80,997		367		1,714		79,650
Municipal securities	60,675		1,604		325		61,954
Corporate bonds	5,080		29		55		5,054
Total fixed income securities	202,192		2,146		2,137		202,201
Equity investments	9,960		3,228		20		13,168
Total available for sale investments, at fair value	$	212,152	$	5,374	$	2,157	$	215,369

	2012
(Dollars in thousands)	Amortized cost		Unrealized gains		Unrealized losses		Fair Value
Federal Agency Obligations(1)	$	65,247	$	438	$	—	$	65,685
Federal Agency mortgage backed securities (MBS)(1)	48,429		1,287		42		49,674
Municipal securities	53,437		3,103		17		56,523
Corporate bonds	1,905		15		6		1,914
Total fixed income securities	169,018		4,843		65		173,796
Equity investments	9,080		1,622		34		10,668
Total available for sales investments, at fair value	$	178,098	$	6,465	$	99	$	184,464

(1) These categories may include investments issued or guaranteed by government sponsored enterprises such as Fannie Mae (FNMA), Freddie Mac (FHLMC), Ginnie Mae (GNMA), Federal Farm Credit Bank (FFCB), or one of several Federal Home Loan Banks (FHLBs). All agency MBS/CMO investments owned by the Company are backed by residential mortgages.

Schedule of Unrealized Loss on Investments

The following tables summarize investments having temporary impairment, due to the fair market values having declined below the amortized costs of the individual investments, and the period that the investments have been impaired at December 31, 2013 and 2012.

	2013
	Less than 12 months				12 months or longer				Total
(Dollars in thousands)	Fair Value		Unrealized Losses		Fair value		Unrealized Losses		Fair Value		Unrealized Losses
Federal Agency Obligations	$	14,026	$	43	$	—	$	—	$	14,026	$	43
Federal agency MBS	$	56,554	$	1,176	$	8,457	$	538	$	65,011	$	1,714
Municipal securities	12,791		292		609		33		13,400		325
Corporate bonds	2,100		39		433		16		2,533		55
Equity investments	749		16		21		4		770		20
Total temporarily impaired investments	$	86,220	$	1,566	$	9,520	$	591	$	95,740	$	2,157

	2012
	Less than 12 months				12 months or longer				Total
(Dollars in thousands)	Fair Value		Unrealized Losses		Fair value		Unrealized Losses		Fair Value		Unrealized Losses
Federal agency MBS	$	9,954	$	42	$	—	$	—	$	9,954	$	42
Municipal securities	1,996		17		—		—		1,996		17
Corporate bonds	1,063		6		—		—		1,063		6
Equity investments	172		2		453		32		625		34
Total temporarily impaired investments	$	13,185	$	67	$	453	$	32	$	13,638	$	99

Investments Classified by Contractual Maturity Date

The contractual maturity distribution of total fixed income investments at December 31, 2013 is as follows:

	Within One Year				After One, but within  Five Years				After Five, but within Ten Years				After Ten Years
(Dollars in thousands)	Amount		Yield		Amount		Yield		Amount		Yield		Amount		Yield
At amortized cost:
Federal agency obligations	$	10,030	0.82	%	$	42,443	0.78	%	$	2,967	1.97	%	$	—	—	%
MBS	—		—	%	3,341		2.45	%	7,562		3.02	%	70,094		2.14	%
Municipal securities	3,349		2.04	%	20,023		2.83	%	31,135		4.40	%	6,168		6.42	%
Corporate bonds	—		—	%	3,387		1.54	%	1,693		2.68	%	—		—	%
Total fixed income securities	$	13,379	1.12	%	$	69,194	1.49	%	$	43,357	3.93	%	$	76,262	2.49	%
At fair value:
Total fixed income securities	$	13,439			$	69,864			$	43,996			$	74,902

Schedule of Realized Gain (Loss) on Sales of Investments

Sales of investments for the years ended December 31, 2013, 2012, and 2011 are summarized as follows:

(Dollars in thousands)	2013			2012			2011
Amortized cost of investments sold	$	8,325		$	3,309		$	10,553
Gross realized gains on sales	1,243			241			791
Gross realized losses on sales	(4		)	(5		)	—
Total proceeds from sales of investments	$	9,564		$	3,545		$	11,344

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Stock-Based Compensation Plans - Restricted Stock Award Activity and Weighted Average Price (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested, ending balance, Restricted Stock	170,365	154,186
Restricted stock award, common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested, beginning balance, Restricted Stock	154,186
Granted, Restricted Stock	80,541	72,376
Vested/released, Restricted Stock	62,053
Forfeited, Restricted Stock	2,309
Unvested, ending balance, Restricted Stock	170,365	154,186
Unvested, beginning balance, Weighted Average Grant Price Per Share	$ 14.58
Granted, Weighted Average Grant Price Per Share	$ 16.43	$ 16.24
Vested/released, Weighted Average Grant Price Per Share	$ 13.65
Forfeited, Weighted Average Grant Price Per Share	$ 15.72
Unvested, ending balance, Weighted Average Grant Price Per Share	$ 15.77	$ 14.58
Unvested, Weighted Average Remaining Life In Years	2 years 2 months 12 days	2 years 3 months 18 days
Unvested, Aggregate Intrinsic Value	$ 3,607,000	$ 2,547,000

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Earnings per share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares

The table below presents the increase in average shares outstanding, using the treasury stock method, for the diluted earnings per share calculation for the years ended December 31st:

	2013	2012	2011
Basic weighted average common shares outstanding	9,862,678	9,586,783	9,401,714
Dilutive shares	87,931	73,893	44,011
Diluted weighted average common shares outstanding	9,950,609	9,660,676	9,445,725

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Income Taxes

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The components of income tax expense for the years ended December 31 were calculated using the asset and liability method as follows:

(Dollars in thousands)	2013			2012			2011
Current tax expense:
Federal	$	5,492		$	5,368		$	5,501
State	1,642			1,605			1,699
Total current tax expense	7,134			6,973			7,200
Deferred tax (benefit)/ expense:
Federal	(100		)	(487		)	(1,602		)
State	(83		)	(138		)	(437		)
Total deferred tax benefit	(183		)	(625		)	(2,039		)
Total income tax expense	$	6,951		$	6,348		$	5,161

The provision for income taxes differs from the amount computed by applying the statutory U.S. federal income tax rate (34%) to income before taxes as follows:

(Dollars in thousands)	2013			2012			2011
Computed income tax expense at statutory rate	$	6,963		$	6,366		$	5,476
State income taxes, net of federal tax benefit	1,029			968			833
Tax exempt income, net of disallowance	(988		)	(1,020		)	(972		)
Bank-owned life insurance income, net	(156		)	(171		)	(182		)
Other	103			205			6
Total income tax expense	$	6,951		$	6,348		$	5,161
Effective income tax rate	33.9		%	33.9		%	32.0		%

At December 31 the tax effects of each type of income and expense item that give rise to deferred taxes are:

(Dollars in thousands)	2013		2012
Deferred tax asset:
Allowance for loan losses	$	10,959	$	9,841
Depreciation	2,804		2,811
Other-than-temporary impairment on equity securities	238		419
Supplemental employee retirement plans	1,174		1,291
Non-accrual interest	1,514		1,465
Stock-based compensation expense	661		866
Impairment of OREO	—		203
Other	137		114
Total	17,487		17,010
Deferred tax liability:
Goodwill	1,928		1,713
Net unrealized gains on investments securities	1,071		2,267
Deferred origination costs	561		482
Total	3,560		4,462
Net deferred tax asset	$	13,927	$	12,548

Management believes that it is more likely than not that current recoverable income taxes and the expectation of future taxable income, based on the Company’s history of reporting taxable income, will generate sufficient taxable income to realize the deferred tax asset existing at December 31, 2013. However, factors, beyond management’s control, such as the general state of the economy can affect future levels of taxable income and there can be no assurances that sufficient taxable income will be generated to fully realize the deferred tax assets in the future.  In addition, management has the ability to sell any of the equity securities affected by the OTTI charge. A sale of the equity securities would ensure that, for tax purposes, a portion of the losses on sales could be applied against investment gains realized on the portfolio during the past three years, before the ability to carry back losses against these gains expires.

The Company paid total income taxes in 2013, 2012, and 2011 of $7.3 million, $6.6 million, and $7.1 million, respectively. 

The Company did not have any unrecognized tax benefits accrued as income tax liabilities or receivables or as deferred tax items at December 31, 2013 or December 31, 2012.

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and in the states of Massachusetts and New Hampshire. The Company is subject to U.S. federal and state income tax examinations by taxing authorities for the 2007 through 2013 tax years.

The Company invests in qualified affordable housing projects as a limited partner. In 2013, the Company estimated approximately $71 thousand of Federal Low Income Housing tax credits to be recognized. In 2012, the Company recognized approximately $235 thousand in Federal Historic Rehabilitation tax credits and $35 thousand of Federal Low Income Housing tax credits. The Company anticipates that it will receive additional tax credits related to Federal Low Income Housing Tax Credit program in the amount of $607 thousand which are expected to be realized over the next 9 years.