10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended September 30, 2015

OR

o 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  001-33572

Bank of Marin Bancorp

(Exact name of Registrant as specified in its charter)

California	20-8859754
(State or other jurisdiction of incorporation)	(IRS Employer Identification No.)
504 Redwood Blvd., Suite 100, Novato, CA	94947
(Address of principal executive office)	(Zip Code)

Registrant’s telephone number, including area code:  (415) 763-4520

Indicate by check mark whether the registrant (1) has filed all reports 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.

Yes x                    No  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate web site, 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).

Yes x                   No o

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 the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

 Large accelerated filer   o  Accelerated filer   x  Non-accelerated filer   o  Smaller reporting company   o

Indicate by check mark if the registrant is a shell company, as defined in Rule 12b-2 of the Exchange Act.

Yes   o     No  x

As of October 31, 2015, there were 6,062,407 shares of common stock outstanding.

TABLE OF CONTENTS

PART I	FINANCIAL INFORMATION	Page-3
ITEM 1.	Financial Statements	Page-3
	Consolidated Statements of Condition	Page-3
	Consolidated Statements of Comprehensive Income	Page-4
	Consolidated Statements of Changes in Stockholders' Equity	Page-5
	Consolidated Statements of Cash Flows	Page-6
	Notes to Consolidated Financial Statements	Page-7
ITEM 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	Page-34
ITEM 3.	Quantitative and Qualitative Disclosure about Market Risk	Page-51
ITEM 4.	Controls and Procedures	Page-52
PART II	OTHER INFORMATION	Page-52
ITEM 1.	Legal Proceedings	Page-52
ITEM 1A.	Risk Factors	Page-53
ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	Page-53
ITEM 3.	Defaults Upon Senior Securities	Page-53
ITEM 4.	Mine Safety Disclosures	Page-53
ITEM 5.	Other Information	Page-53
ITEM 6.	Exhibits	Page-54
SIGNATURES		Page-56

Page-2

PART I       FINANCIAL INFORMATION

ITEM 1.  Financial Statements

BANK OF MARIN BANCORP

CONSOLIDATEDSTATEMENTS OFCONDITION

at September 30, 2015 and December 31, 2014

(in thousands, except share data; unaudited)	September 30, 2015		December 31, 2014
Assets
Cash and due from banks	$	35,315	$	41,367
Investment securities
Held-to-maturity, at amortized cost	86,471		116,437
Available-for-sale, at fair value (amortized cost $331,024 and $199,045 at September 30, 2015 and December 31, 2014, respectively)	333,856		200,848
Total investment securities	420,327		317,285
Loans, net of allowance for loan losses of $14,457 and $15,099 at September 30, 2015 and December 31, 2014, respectively	1,348,743		1,348,252
Bank premises and equipment, net	9,537		9,859
Goodwill	6,436		6,436
Core deposit intangible	3,268		3,732
Interest receivable and other assets	59,168		60,199
Total assets	$	1,882,794	$	1,787,130
Liabilities and Stockholders' Equity
Liabilities
Deposits
Non-interest-bearing	$	752,336	$	670,890
Interest-bearing
Transaction accounts	95,522		93,758
Savings accounts	136,021		133,714
Money market accounts	495,642		503,543
Time accounts	155,961		149,714
Total deposits	1,635,482		1,551,619
Federal Home Loan Bank ("FHLB") borrowings	15,000		15,000
Subordinated debentures	5,343		5,185
Interest payable and other liabilities	15,015		15,300
Total liabilities	1,670,840		1,587,104
Stockholders' Equity
Preferred stock, no par value Authorized - 5,000,000 shares, none issued	—		—
Common stock, no par value Authorized - 15,000,000 shares; Issued and outstanding - 6,060,744 and 5,939,482 at     September 30, 2015 and December 31, 2014, respectively	84,272		82,436
Retained earnings	126,082		116,502
Accumulated other comprehensive income, net	1,600		1,088
Total stockholders' equity	211,954		200,026
Total liabilities and stockholders' equity	$	1,882,794	$	1,787,130

The accompanying notes are an integral part of these consolidated financial statements (unaudited).

Page-3

BANK OF MARIN BANCORP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	Three months ended					Nine months ended
(in thousands, except per share amounts; unaudited)	September 30, 2015		September 30, 2014			September 30, 2015			September 30, 2014
Interest income
Interest and fees on loans	$	15,498	$	16,195		$	46,164		$	48,877
Interest on investment securities
Securities of U.S. government agencies	1,223		1,126			3,248			3,551
Obligations of state and political subdivisions	527		496			1,578			1,737
Corporate debt securities and other	162		254			546			778
Interest on Federal funds sold and due from banks	35		37			107			125
Total interest income	17,445		18,108			51,643			55,068
Interest expense
Interest on interest-bearing transaction accounts	28		25			88			74
Interest on savings accounts	12		12			37			34
Interest on money market accounts	125		126			375			415
Interest on time accounts	212		229			649			695
Interest on FHLB and overnight borrowings	80		79			236			235
Interest on subordinated debentures	105		106			314			316
Total interest expense	562		577			1,699			1,769
Net interest income	16,883		17,531			49,944			53,299
Provision for loan losses	—		—			—			750
Net interest income after provision for loan losses	16,883		17,531			49,944			52,549
Non-interest income
Service charges on deposit accounts	489		552			1,518			1,636
Wealth Management and Trust Services	568		567			1,809			1,744
Debit card interchange fees	372		375			1,087			1,035
Merchant interchange fees	171		224			430			629
Earnings on bank-owned life insurance	204		208			610			632
Dividends on FHLB stock	209		149			817			409
Gain on sale of securities	72		4			80			93
Other income	213		222			744			707
Total non-interest income	2,298		2,301			7,095			6,885
Non-interest expense
Salaries and related benefits	6,300		6,108			19,762			19,270
Occupancy and equipment	1,346		1,381			4,181			4,044
Depreciation and amortization	441		383			1,512			1,202
Federal Deposit Insurance Corporation insurance	250		261			739			780
Data processing	835		748			2,413			2,856
Professional services	493		537			1,572			1,577
Directors' expense	182		153			620			466
Information technology	186		180			554			517
Provision for (reversal of) losses on off-balance sheet commitments	324		13			14			(2		)
Other expense	1,281		1,586			4,447			4,940
Total non-interest expense	11,638		11,350			35,814			35,650
Income before provision for income taxes	7,543		8,482			21,225			23,784
Provision for income taxes	2,770		3,104			7,709			8,705
Net income	$	4,773	$	5,378		$	13,516		$	15,079
Net income per common share:
Basic	$	0.80	$	0.91		$	2.27		$	2.56
Diluted	$	0.79	$	0.89		$	2.23		$	2.51
Weighted average shares used to compute net income per common share:
Basic	5,963		5,903			5,943			5,887
Diluted	6,067		6,014			6,059			5,996
Dividends declared per common share	$	0.22	$	0.20		$	0.66		$	0.58
Comprehensive income:
Net income	$	4,773	$	5,378		$	13,516		$	15,079
Other comprehensive income
Change in net unrealized gain (loss) on available-for-sale securities	1,523		(344		)	1,037			2,047
Reclassification adjustment for loss (gain) on available-for-sale securities     included in net income	—		4			(8		)	19
Net change in unrealized gain (loss) on available-for-sale securities, before              tax	1,523		(340		)	1,029			2,066
Deferred tax expense (benefit)	654		(141		)	517			828
Other comprehensive income (loss), net of tax	869		(199		)	512			1,238
Comprehensive income	$	5,642	$	5,179		$	14,028		$	16,317

The accompanying notes are an integral part of these consolidated financial statements (unaudited).

Page-4

BANK OF MARIN BANCORP

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

for the year ended December 31, 2014 and the nine months ended September 30, 2015

(in thousands, except share data; unaudited)	Common Stock				Retained Earnings			Accumulated Other Comprehensive Income (Loss), Net of Taxes			Total
	Shares		Amount
Balance at December 31, 2013	5,877,524		$	80,095	$	101,464		$	(672	)	$	180,887
Net income	—		—		19,771			—			19,771
Other comprehensive income	—		—		—			1,760			1,760
Stock options exercised	49,415		1,452		—			—			1,452
Excess tax benefit - stock-based compensation	—		172		—			—			172
Stock issued under employee stock purchase plan	521		23		—			—			23
Restricted stock granted	8,523		—		—			—			—
Restricted stock forfeited / cancelled	(2,067	)	—		—			—			—
Stock-based compensation - stock options	—		200		—			—			200
Stock-based compensation - restricted stock	—		246		—			—			246
Cash dividends paid on common stock	—		—		(4,733		)	—			(4,733		)
Stock purchased by directors under director stock plan	260		12		—			—			12
Stock issued in payment of director fees	5,306		236		—			—			236
Balance at December 31, 2014	5,939,482		$	82,436	$	116,502		$	1,088		$	200,026
Net income	—		—		13,516			—			13,516
Other comprehensive income	—		—		—			512			512
Stock options exercised	29,358		888		—			—			888
Excess tax benefit - stock-based compensation	—		172		—			—			172
Stock issued under employee stock purchase plan	253		12		—			—			12
Restricted stock granted	15,970		—		—			—			—
Restricted stock forfeited / cancelled	(450	)	—		—			—			—
Stock-based compensation - stock options	—		192		—			—			192
Stock-based compensation - restricted stock	—		285		—			—			285
Cash dividends paid on common stock	—		—		(3,936		)	—			(3,936		)
Stock purchased by directors under director stock plan	245		12		—			—			12
Stock issued in payment of director fees	5,295		275		—			—			275
Stock issued from exercise of warrants	70,591		—		—			—			—
Balance at September 30, 2015	6,060,744		$	84,272	$	126,082		$	1,600		$	211,954

The accompanying notes are an integral part of these consolidated financial statements (unaudited).

Page-5

BANK OF MARIN BANCORP

CONSOLIDATED STATEMENTS OF CASH FLOWS

for the nine months ended September 30, 2015 and 2014

(in thousands; unaudited)	September 30, 2015			September 30, 2014
Cash Flows from Operating Activities:
Net income	$	13,516		$	15,079
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	—			750
Provision for (reversal of) losses on off-balance sheet commitments	14			(2		)
Compensation expense - common stock for director fees	207			170
Stock-based compensation expense	477			336
Excess tax benefits from exercised stock options	(150		)	(104		)
Amortization of core deposit intangible	464			578
Amortization of investment security premiums, net of accretion of discounts	2,038			1,982
Accretion of discount on acquired loans	(1,569		)	(3,311		)
Accretion of discount on subordinated debentures	158			162
Net amortization of deferred loan origination costs/fees	(374		)	(382		)
Write-down of other real estate owned	40			—
Gain on sale of investment securities	(80		)	(93		)
Depreciation and amortization	1,512			1,202
Loss on disposal of premises and equipment	4			—
Earnings on bank-owned life insurance policies	(610		)	(632		)
Net change in operating assets and liabilities:
Interest receivable	303			122
Interest payable	(13		)	(44		)
Deferred rent and other rent-related expenses	42			165
Other assets	1,930			(44		)
Other liabilities	(819		)	(1,847		)
Total adjustments	3,574			(992		)
Net cash provided by operating activities	17,090			14,087
Cash Flows from Investing Activities:
Purchase of held-to-maturity securities	(2,375		)	—
Purchase of available-for-sale securities	(189,755		)	(16,353		)
Proceeds from sale of available-for-sale securities	1,559			2,435
Proceeds from sale of held-to-maturity securities	1,015			2,146
Proceeds from paydowns/maturity of held-to-maturity securities	30,529			14,738
Proceeds from paydowns/maturity of available-for-sale securities	54,966			33,320
Proceeds from the sale of loan	1,502			—
Loans originated and principal collected, net	403			(88,028		)
Purchase of FHLB stock	(136		)	(492		)
Purchase of premises and equipment	(1,194		)	(1,369		)
Cash paid for low income housing tax credit investment	(645		)	(208		)
Net cash used in investing activities	(104,131		)	(53,811		)
Cash Flows from Financing Activities:
Net increase (decrease) in deposits	83,863			(15,478		)
Proceeds from stock options exercised	888			1,146
Proceeds from stock issued under employee and director stock purchase plans	24			31
Cash dividends paid on common stock	(3,936		)	(3,428		)
Excess tax benefits from exercised stock options	150			104
Net cash provided by (used in) financing activities	80,989			(17,625		)
Net decrease in cash and cash equivalents	(6,052		)	(57,349		)
Cash and cash equivalents at beginning of period	41,367			103,773
Cash and cash equivalents at end of period	$	35,315		$	46,424
Supplemental disclosure of cash flow information:
Cash paid for interest	$	1,554		$	1,660
Cash paid for income taxes	$	6,603		$	6,940
Supplemental disclosure of non-cash investing and financing activities:
Change in unrealized gain on available-for-sale securities	$	(1,029	)	$	(2,066	)
Securities transferred from available-for-sale to held-to-maturity	$	—		$	14,297
Transfer of loan to loans held-for-sale at fair value	$	1,502		$	—
Subscription in low income housing tax credit investment	$	1,023		$	1,000
Stock issued in payment of director fees	$	275		$	236

The accompanying notes are an integral part of these consolidated financial statements (unaudited).

Page-6

NOTES TO CONSOLIDATEDFINANCIAL STATEMENTS (Unaudited)

Note 1:  Basis of Presentation

The consolidated financial statements include the accounts of Bank of Marin Bancorp (“Bancorp”), a bank holding company, and its wholly-owned bank subsidiary, Bank of Marin (the “Bank”), a California state-chartered commercial bank. References to “we,” “our,” “us” mean the holding company and the Bank that are consolidated for financial reporting purposes. The accompanying unaudited consolidated interim financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and note disclosures normally included in annual financial statements prepared in accordance with generally accepted accounting principles ("GAAP") have been condensed or omitted pursuant to those rules and regulations. Although we believe that the disclosures are adequate and the information presented is not misleading, we suggest that these interim financial statements be read in conjunction with the financial statements and the notes thereto included in our 2014 Annual Report on Form 10-K.  In the opinion of Management, the unaudited consolidated financial statements reflect all adjustments which are necessary for a fair presentation of the consolidated financial position, the results of operations, changes in comprehensive income, changes in stockholders’ equity, and cash flows for the periods presented. All material intercompany transactions have been eliminated. The results of these interim periods may not be indicative of the results for the full year or for any other period. We have evaluated subsequent events through the date of filing with the SEC and have determined that there are no subsequent events that require additional recognition or disclosure.

In connection with the acquisition of NorCal Community Bancorp ("NorCal") (the "Acquisition"), Bancorp assumed ownership of Norcal Community Bancorp Trusts I and II (the "Trusts"). Bancorp is not considered the primary beneficiary of the Trusts (variable interest entities), therefore the Trusts are not consolidated in our consolidated financial statements, but rather the subordinated debentures due to the Trusts are shown as liabilities on our consolidated statements of condition (see Note 6). Bancorp's investment in the common stock of the Trusts is accounted for under the equity method and is included in interest receivable and other assets on the consolidated statements of condition.

The following table shows: 1) weighted average basic shares, 2) potentially dilutive weighted average common shares related to stock options, unvested restricted stock awards and stock warrant, and 3) weighted average diluted shares. Basic earnings per share (“EPS”) are calculated by dividing net income by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards. Diluted EPS are calculated using the weighted average number of potentially dilutive common shares, which is based on average market prices during the three months of the reporting period, under the treasury stock method. The number of potentially dilutive common shares included in year-to-date diluted EPS is a year-to-date weighted average of potentially dilutive common shares included in each quarterly diluted EPS computation. We have two forms of outstanding stock: common stock and unvested restricted stock awards. Holders of unvested restricted stock awards receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. Therefore, under the two-class method, the difference in EPS is not significant for these participating securities.

Page-7

	Three months ended				Nine months ended
(in thousands, except per share data)	September 30, 2015		September 30, 2014		September 30, 2015		September 30, 2014
Weighted average basic shares outstanding	5,963		5,903		5,943		5,887
Add: Potentially dilutive common shares related to          stock options	35		41		41		42
Potentially dilutive common shares related to  unvested restricted stock	5		4		5		4
Potentially dilutive common shares related to  the warrant	64		66		70		63
Weighted average diluted shares outstanding	6,067		6,014		6,059		5,996
Net income	$	4,773	$	5,378	$	13,516	$	15,079
Basic EPS	$	0.80	$	0.91	$	2.27	$	2.56
Diluted EPS	$	0.79	$	0.89	$	2.23	$	2.51
Weighted average anti-dilutive shares not included in the calculation of diluted EPS	42		51		35		48

Page-8

Note 2: Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers (Topic 606). The ASU is a converged standard involving FASB and International Financial Reporting Standards that provides a single comprehensive revenue recognition model for all contracts with customers across transactions and industries. The core principal of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount and at a time that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606) Deferral of the Effective Date which institutes a one-year deferral of the effective date of this amendment to annual reporting periods beginning after December 15, 2017. We are currently evaluating the provisions of this ASU and will be monitoring developments and additional guidance to determine the potential impact the new standard will have on our financial condition and results of operations.

In June 2014, the FASB issued ASU No. 2014-12, Compensation - Stock Compensation (Topic 718) Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period. This ASU provides guidance for entities that grant their employees share-based payment awards where a performance target that affects vesting could be achieved after the requisite service period. That is the case when an employee is eligible to retire or otherwise terminate employment before the end of the period in which a performance target could be achieved and still be eligible to vest in the award if and when the performance target is achieved. This ASU stipulates that compensation expense should be recognized in the period where the performance target becomes probable of being achieved as opposed to the date that the award was granted. ASU 2014-12 is effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. We do not expect this ASU to have a material impact on our financial condition or results of operations.

In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. The amendments in this ASU provide guidance about a customer's accounting for fees paid in a cloud computing arrangement. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, then the customer should account for the arrangement as a service contract. The two criteria that must be met to be considered a software license are: 1) the customer has the contractual right to take possession of the software at any time during the hosting period without significant penalty; and 2) it is feasible for the customer to either run the software on its own hardware or contract with another party unrelated to the vendor to host the software. ASU 2015-05 is effective for annual periods, including interim periods within those annual periods beginning after December 15, 2015. We do not expect this ASU to have a material impact on our financial condition or results of operations.

In September 2015, the FASB issued ASU No. 2015-16, Business Combinations (Topic 805) Simplifying the Accounting for Measurement-Period Adjustments. The amendments in this ASU require that an acquirer recognize adjustments to estimated amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. Prior to the amendments, an acquirer was required to retrospectively adjust the provisional amounts recognized at the acquisition date with a corresponding adjustment to goodwill. ASU 2015-16 is effective for public business entities for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. We do not expect this ASU to have a material impact on our financial condition or results of operations.

Page-9

Note 3:  Fair Value of Assets and Liabilities

Fair Value Hierarchy and Fair Value Measurement

We group our assets and liabilities that are measured at fair value into three levels within the fair value hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:

Level 1: Valuations are based on unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2: Valuations are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuations for which all significant assumptions are observable or can be corroborated by observable market data.

Level 3: Valuations are based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Values are determined using pricing models and discounted cash flow models and may include significant Management judgment and estimation.

Transfers between levels of the fair value hierarchy are recognized through our monthly and/or quarterly valuation process in the reporting period during which the event or circumstances that caused the transfer occurred.

Page-10

The following table summarizes our assets and liabilities that were required to be recorded at fair value on a recurring basis.

(in thousands)   Description of Financial Instruments	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
At September 30, 2015:
Securities available-for-sale:
Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies	$	171,417	$	—	$	169,677	$	1,740
Debentures of government-sponsored agencies	$	102,165	$	—	$	102,165	$	—
Privately-issued collateralized mortgage obligations	$	4,891	$	—	$	4,891	$	—
Obligations of state and political subdivisions	$	50,377	$	—	$	50,377	$	—
Corporate bonds	$	5,006	$	—	5,006		$	—
Derivative financial liabilities (interest rate contracts)	$	2,328	$	—	$	2,328	$	—
At December 31, 2014:
Securities available-for-sale:
Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies	$	158,119	$	—	$	155,421	$	2,698
Debentures of government-sponsored agencies	$	14,557	$	—	$	14,557	$	—
Privately-issued collateralized mortgage obligations	$	7,294	$	—	$	7,294	$	—
Obligations of state and political subdivisions	$	15,880	$	—	$	15,771	$	—
Corporate bonds	$	4,998	$	—	$	5,437	$	—
Derivative financial assets (interest rate contracts)	$	61	$	—	$	61	$	—
Derivative financial liabilities (interest rate contracts)	$	1,996	$	—	$	1,996	$	—

Securities available-for-sale are recorded at fair value on a recurring basis. When available, quoted market prices (Level 1) are used to determine the fair value of securities available-for-sale. If quoted market prices are not available, we obtain pricing information from a reputable third-party service provider, who may utilize valuation techniques that use current market-based or independently sourced parameters, such as bid/ask prices, dealer-quoted prices, interest rates, benchmark yield curves, prepayment speeds, probability of default, loss severity and credit spreads (Level 2).   Level 2 securities include obligations of state and political subdivisions, U.S. agencies or government sponsored agencies' debt securities, mortgage-backed securities, government agency-issued and privately-issued collateralized mortgage obligations. As of September 30, 2015 and December 31, 2014, there were no securities that were considered Level 1 securities. As of September 30, 2015, we had one available-for-sale security that was considered a Level 3 security. The security is a U.S. government agency obligation collateralized by a small pool of business equipment loans guaranteed by the Small Business Administration program. This security is not actively traded and is owned only by a few investors. The significant unobservable data that is reflected in the fair value measurement include dealer quotes, projected prepayment speeds/average life and credit information, among other things. It was transferred to a Level 3 security during the second quarter of 2014. The decrease in unrealized gain during the first nine months of 2015 was $8 thousand.

Securities held-to-maturity may be written down to fair value (determined using the same techniques discussed above for securities available-for-sale) as a result of an other-than-temporary impairment, if any.

On a recurring basis, derivative financial instruments are recorded at fair value, which is based on the income approach using observable Level 2 market inputs, reflecting market expectations of future interest rates as of the measurement

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date.  Standard valuation techniques are used to calculate the present value of the future expected cash flows assuming an orderly transaction.  Valuation adjustments may be made to reflect both our own credit risk and the counterparties’ credit risk in determining the fair value of the derivatives. Level 2 inputs for the valuations are limited to observable market prices for London Interbank Offered Rate ("LIBOR") and Overnight Index Swap ("OIS") rates (for the very short term), quoted prices for LIBOR futures contracts, observable market prices for LIBOR and OIS swap rates, and one-month and three-month LIBOR basis spreads at commonly quoted intervals.  Mid-market pricing of the inputs is used as a practical expedient in the fair value measurements.  We project spot rates at reset days specified by each swap contract to determine future cash flows, then discount to present value using either LIBOR or OIS curves depending on the collateral posted as of the measurement date.  When the value of any collateral placed with counterparties is less than the interest rate derivative liability, a credit valuation adjustment ("CVA") is applied to reflect the credit risk we pose to counterparties.  We have used the spread between the Standard & Poor's BBB rated U.S. Bank Composite rate and LIBOR for the closest maturity term corresponding to the duration of the swaps to derive the CVA. A similar credit risk adjustment, correlated to the credit standing of the counterparty, is made when collateral posted by the counterparty does not fully cover their liability to Bank of Marin.

Certain financial assets may be measured at fair value on a non-recurring basis. These assets are subject to fair value adjustments that result from the application of the lower of cost or fair value accounting or write-downs of individual assets, such as impaired loans and other real estate owned ("OREO").

The following table presents the carrying value of assets and liabilities measured at fair value on a non-recurring basis and that were held in the consolidated statements of condition at each respective period end, by level within the fair value hierarchy as of September 30, 2015 and December 31, 2014. Impaired loans are only included in the following table when they are collateral dependent and the recorded investments of these loans are at the net realizable value of the collateral based on an impairment analysis.

(in thousands)	Carrying Value1		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs  (Level 3)
At September 30, 2015:
Other real estate	$	421	$	—	$	—	$	421
At December 31, 2014:
Impaired loans:
Installment and other consumer 1	$	77	$	—	$	—	$	77
Other real estate	$	461	$	—	$	—	$	461

¹ Represents collateral-dependent loan principal balances that had been generally written down to the values of the underlying collateral, net of specific valuation allowances. At December 31, 2014, the $77 thousand carrying value of a consumer loan was net of a $26 thousand specific valuation allowance. The carrying value of loans fully charged-off, which includes unsecured lines of credit, overdrafts and all other loans, is zero.

When a loan is identified as impaired, it is reported at the lower of cost or fair value, measured based on the loan's observable market price (Level 1) or the current net realizable value of the underlying collateral securing the loan, if the loan is collateral dependent (Level 3).  Net realizable value of the underlying collateral is the fair value of the collateral less estimated selling costs and any prior liens. Appraisals, recent comparable sales, offers and listing prices are factored in when valuing the collateral. We review and verify the qualifications and licenses of  the certified general appraisers used for appraising commercial properties or certified residential appraisers for residential properties. Real estate appraisals may utilize a combination of approaches including replacement cost, sales comparison and the income approach. Comparable sales and income data are analyzed by the appraisers and adjusted to reflect differences between them and the subject property such as property type, leasing status and physical condition. When appraisals are received, Management reviews the assumptions and methodology utilized in the appraisal, as well as the overall resulting value in conjunction with independent data sources such as recent market data and industry-wide statistics. We generally use a 6% discount for selling costs which is applied to all properties, regardless of size. Appraised values may be adjusted to reflect changes in market conditions that have occurred subsequent to the appraisal date, or for revised estimates regarding the timing or cost of the property sale. These adjustments are based on qualitative judgments made by Management on a case-by-case basis and are generally unobservable valuation inputs as they are specific to the underlying collateral. There have been no significant changes in the valuation techniques during the nine months ended September 30, 2015.

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OREO represents collateral acquired through foreclosure and is initially recorded at fair value as established by a current appraisal, adjusted for disposition costs. Subsequently, OREO is measured at lower of cost or fair value. OREO values are reviewed on an ongoing basis and any subsequent decline in fair value is recorded as a foreclosed asset expense in the current period. The value of OREO is determined based on independent appraisals, similar to the process used for impaired loans, discussed above, and is classified as Level 3. All OREO was acquired from Bank of Alameda as part of the Acquisition. There was a $40 thousand decline in the estimated fair value of the OREO during the first nine months ended September 30, 2015 recorded in other non-interest expense.

Disclosures about Fair Value of Financial Instruments

The table below is a summary of fair value estimates for financial instruments as of September 30, 2015 and December 31, 2014, excluding financial instruments recorded at fair value on a recurring basis (summarized in the first table in this note). The carrying amounts in the following table are recorded in the consolidated statements of condition under the indicated captions. We have excluded non-financial assets and non-financial liabilities defined by the Codification (ASC 820-10-15-1A), such as Bank premises and equipment, deferred taxes and other liabilities.  In addition, we have not disclosed the fair value of financial instruments specifically excluded from disclosure requirements of the Financial Instruments Topic of the Codification (ASC 825-10-50-8), such as Bank-owned life insurance policies.

	September 30, 2015					December 31, 2014
(in thousands)	Carrying Amounts		Fair Value		Fair Value Hierarchy	Carrying Amounts		Fair Value		Fair Value Hierarchy
Financial assets
Cash and cash equivalents	$	35,315	$	35,315	Level 1	$	41,367	$	41,367	Level 1
Investment securities held-to-maturity	86,471		88,104		Level 2	116,437		118,643		Level 2
Loans, net	1,348,743		1,364,940		Level 3	1,348,252		1,361,244		Level 3
Interest receivable	5,606		5,606		Level 2	5,909		5,909		Level 2
Financial liabilities
Deposits	1,635,482		1,636,088		Level 2	1,551,619		1,552,446		Level 2
Federal Home Loan Bank borrowings	15,000		15,437		Level 2	15,000		15,484		Level 2
Subordinated debentures	5,343		5,178		Level 3	5,185		5,290		Level 3
Interest payable	200		200		Level 2	213		213		Level 2

Following is a description of methods and assumptions used to estimate the fair value of each class of financial instrument not recorded at fair value but required for disclosure purposes:

Cash and Cash Equivalents - The carrying amounts of cash and cash equivalents approximate their fair value because of the short-term nature of these instruments.

Held-to-maturity Securities - Held-to-maturity securities, which generally consist of mortgage-backed securities, obligations of state and political subdivisions and corporate bonds, are recorded at their amortized cost. The fair value for disclosure purposes is determined using methodologies similar to those described above for available-for-sale securities using Level 2 inputs. If Level 2 inputs are not available, we may utilize pricing models that incorporate unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities (Level 3).  As of September 30, 2015 and December 31, 2014, we did not hold any held-to-maturity securities whose fair value was measured using significant unobservable inputs.

Loans - The fair value of loans with variable interest rates approximates current carrying value, because their rates are regularly adjusted to current market rates. The fair value of fixed rate loans or variable loans at negotiated interest rate floors or ceilings with remaining maturities in excess of one year is estimated by discounting the future cash flows using current market rates at which similar loans would be made to borrowers with similar creditworthiness and similar remaining maturities. The allowance for loan losses (“ALLL”) is considered to be a reasonable estimate of the portion of loan discount attributable to credit risks.

Interest Receivable and Payable - The interest receivable and payable balances approximate their fair value due to the short-term nature of their settlement dates.

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Deposits - The fair value of deposits without stated maturity, such as transaction accounts, savings accounts and money market accounts, is the amount payable on demand at the reporting date. The fair value of time deposits is estimated by discounting the future cash flows using current rates offered for deposits of similar remaining maturities.

Federal Home Loan Bank Borrowings - The fair value is estimated by discounting the future cash flows using current rates offered by the Federal Home Loan Bank of San Francisco ("FHLB") for similar credit advances corresponding to the remaining duration of our fixed-rate credit advances.

Subordinated Debentures - As part of the Acquisition, we assumed two subordinated debentures from NorCal. See Note 6 for further information. The fair values of the subordinated debentures were estimated by discounting the future cash flows (interest payment at a rate of three-month LIBOR plus 3.05% and 1.40%) to their present values using current market rates at which similar debt securities would be issued with similar credit ratings as ours and similar remaining maturities. Each interest payment was discounted at the spot rate for the corresponding term, determined based on the yields and terms of comparable trust preferred securities, plus a liquidity premium. In July 2010, the Dodd-Frank Act was signed into law and limits the ability of certain bank holding companies to treat trust preferred security debt issuances as Tier 1 capital. This law effectively closed the trust-preferred securities markets for new issuances and led to the absence of observable or comparable transactions in the market place. Due to the use of unobservable inputs of trust preferred securities, we consider the fair value to be a Level 3 measurement.

Commitments - The value of unrecognized financial instruments is estimated based on the fee income associated with the commitments which, in the absence of credit exposure, is considered to approximate their settlement value. The fair value of commitment fees was not material at September 30, 2015 and December 31, 2014.

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Note 4:  Investment Securities

Our investment securities portfolio consists of obligations of state and political subdivisions, corporate bonds, U.S. government agency securities, including mortgage-backed securities (“MBS”) and collateralized mortgage obligations (“CMOs”) issued or guaranteed by Federal National Mortgage Association ("FNMA"), Federal Home Loan Mortgage Corporation ("FHLMC"), or Government National Mortgage Association ("GNMA"), debentures issued by government-sponsored agencies such as FNMA, Federal Farm Credit Bureau, FHLB and FHLMC, as well as privately issued CMOs, as reflected in the table below:

	September 30, 2015									December 31, 2014
	Amortized		Fair		Gross Unrealized					Amortized		Fair		Gross Unrealized
(in thousands)	Cost		Value		Gains		(Losses)			Cost		Value		Gains		(Losses)
Held-to-maturity
Obligations of state and   political subdivisions	$	50,570	$	51,867	$	1,302	$	(5	)	$	63,425	$	65,121	$	1,736	$	(40	)
Corporate bonds	23,578		23,662		87		(3		)	40,257		40,448		216		(25		)
MBS pass-through securities issued by FHLMC and FNMA	12,323		12,575		259		(7		)	12,755		13,074		319		—
Total held-to-maturity	86,471		88,104		1,648		(15		)	116,437		118,643		2,271		(65		)
Available-for-sale
Securities of U.S. government agencies:
MBS pass-through securities issued by FHLMC and FNMA	116,513		117,963		1,488		(38		)	92,963		94,214		1,262		(11		)
CMOs issued by FNMA	16,211		16,385		208		(34		)	14,771		14,790		77		(58		)
CMOs issued by FHLMC	24,645		24,869		239		(15		)	31,238		31,260		109		(87		)
CMOs issued by GNMA	11,951		12,200		254		(5		)	17,573		17,855		298		(16		)
Debentures of government- sponsored agencies	101,987		102,165		229		(51		)	14,694		14,557		95		(232		)
Privately issued CMOs	4,700		4,891		193		(2		)	7,137		7,294		172		(15		)
Obligations of state and political subdivisions	50,073		50,377		345		(41		)	15,733		15,880		155		(8		)
Corporate bonds	4,944		5,006		62		—			4,936		4,998		66		(4		)
Total available-for-sale	331,024		333,856		3,018		(186		)	199,045		200,848		2,234		(431		)
Total investment securities	$	417,495	$	421,960	$	4,666	$	(201	)	$	315,482	$	319,491	$	4,505	$	(496	)

The amortized cost and fair value of investment debt securities by contractual maturity at September 30, 2015 are shown below. Expected maturities will differ from contractual maturities because the issuers of the securities may have the right to call or prepay obligations with or without call or prepayment penalties.

	September 30, 2015								December 31, 2014
	Held-to-Maturity				Available-for-Sale				Held-to-Maturity				Available-for-Sale
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within one year	$	34,325	$	34,459	$	11,955	$	12,019	$	39,778	$	39,913	$	2,378	$	2,388
After one year but within five years	31,072		31,821		127,221		127,607		50,983		51,953		43,866		43,919
After five years through ten years	9,876		10,352		51,686		51,885		11,679		12,426		9,644		9,749
After ten years	11,198		11,472		140,162		142,345		13,997		14,351		143,157		144,792
Total	$	86,471	$	88,104	$	331,024	$	333,856	$	116,437	$	118,643	$	199,045	$	200,848

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Sales of investment securities and gross realized gains and losses are shown in the following table. The sales of the held-to-maturity securities were due to evidence of significant deterioration of the issuers' creditworthiness since purchase.

	Three months ended				Nine months ended
(in thousands)	September 30, 2015		September 30, 2014		September 30, 2015		September 30, 2014
Available-for-sale:
Sales proceeds	$	—	$	413	$	1,559	$	2,435
Gross realized gains	$	—	$	4	$	8	$	4
Gross realized (losses)	$	—	$	—	$	—	$	(15	)
Held-to-maturity:
Sales proceeds	$	1,015	$	—	$	1,015	$	2,146
Gross realized gains	$	72	$	—	$	72	$	104
Gross realized (losses)	$	—	$	—	$	—	$	—

Investment securities carried at $66.0 million and $74.7 million at September 30, 2015 and December 31, 2014, respectively, were pledged to the State of California: $65.2 million and $73.8 million to secure public deposits in compliance with the Local Agency Security Program at September 30, 2015 and December 31, 2014, respectively, and $844 thousand and $856 thousand to provide collateral for trust deposits at September 30, 2015 and December 31, 2014, respectively. In addition, investment securities carried at $1.1 million were pledged to collateralize a Wealth Management and Trust Services (“WMTS”) checking account at both September 30, 2015 and December 31, 2014.

Other-Than-Temporarily Impaired Debt Securities

We have evaluated the credit of our investment securities and their issuers and/or insurers. Based on our evaluation, Management has determined that no investment security in our investment portfolio is other-than-temporarily impaired as of September 30, 2015. We do not have the intent, and it is more likely than not that we will not have to sell securities temporarily impaired at September 30, 2015 before recovery of the cost basis.

Twenty-nine and twenty-eight investment securities were in unrealized loss positions at September 30, 2015 and December 31, 2014, respectively. Those securities are summarized and classified according to the duration of the loss period in the table below:

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September 30, 2015	< 12 continuous months					≥ 12 continuous months					Total securities  in a loss position
(in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity
Obligations of state & political subdivisions	$	2,751	$	(5	)	$	—	$	—		$	2,751	$	(5	)
Corporate bonds	5,540		(3		)	—		—			5,540		(3		)
MBS pass-through securities issued by FHLMC and FNMA	2,344		(7		)	—		—			2,344		(7		)
Total held-to-maturity	10,635		(15		)	—		—			10,635		(15		)
Available-for-sale
MBS pass-through securities issued by FHLMC and FNMA	21,640		(38		)	—		—			21,640		(38		)
CMOs issued by FNMA	—		—			3,428		(34		)	3,428		(34		)
CMOs issued by FHLMC	—		—			2,089		(15		)	2,089		(15		)
CMOs issued by GNMA	2,570		(5		)	—		—			2,570		(5		)
Debentures of government- sponsored agencies	—		—			9,949		(51		)	9,949		(51		)
Privately issued CMOs	—		—			379		(2		)	379		(2		)
Obligations of state & political subdivisions	9,867		(39		)	582		(2		)	10,449		(41		)
Total available-for-sale	34,077		(82		)	16,427		(104		)	50,504		(186		)
Total temporarily impaired securities	$	44,712	$	(97	)	$	16,427	$	(104	)	$	61,139	$	(201	)

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December 31, 2014	< 12 continuous months					≥ 12 continuous months					Total securities  in a loss position
(dollars in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity
Obligations of state & political subdivisions	$	5,830	$	(27	)	$	359	$	(13	)	$	6,189	$	(40	)
Corporate bonds	3,009		(1		)	3,533		(24		)	6,542		(25		)
Total held-to-maturity	8,839		(28		)	3,892		(37		)	12,731		(65		)
Available-for-sale
MBS pass-through securities issued by FHLMC and FNMA	1,960		(11		)	—		—			1,960		(11		)
CMOs issued by FNMA	—		—			4,115		(58		)	4,115		(58		)
CMOs issued by FHLMC	17,157		(44		)	2,291		(43		)	19,448		(87		)
CMOs issued by GNMA	3,262		(16		)	—		—			3,262		(16		)
Debentures of government- sponsored agencies	494		(1		)	9,769		(231		)	10,263		(232		)
Privately issued CMOs	817		(15		)	—		—			817		(15		)
Obligations of state & political subdivisions	2,695		(3		)	1,112		(5		)	3,807		(8		)
Corporate bonds	1,002		(1		)	990		(3		)	1,992		(4		)
Total available-for-sale	27,387		(91		)	18,277		(340		)	45,664		(431		)
Total temporarily impaired securities	$	36,226	$	(119	)	$	22,169	$	(377	)	$	58,395	$	(496	)

As of September 30, 2015, there were six investment positions that had been in a continuous loss position for twelve months or more. These securities consisted of government-sponsored agency debentures, obligations of U.S. state and political subdivisions, and CMOs. We have evaluated each of the bonds and believe that the decline in fair value is primarily driven by factors other than credit. It is probable that we will be able to collect all amounts due according to the contractual terms and no other-than-temporary impairment exists on these securities. The government-sponsored agency debentures and CMOs issued by FNMA and FHLMC are supported by the U.S. Federal Government to protect us from credit losses. The obligations of state and political subdivisions were deemed creditworthy based on our review of the issuers' recent financial information and their insurers, if any. Based upon our assessment of the credit fundamentals and the credit enhancements, we concluded that these securities were not other-than-temporarily impaired at September 30, 2015.

Twenty-three investment securities in our portfolio were in a temporary loss position for less than twelve months as of September 30, 2015. They consisted of U.S. agency CMO and MBS pass-through securities, obligations of U.S. state and political subdivisions, and corporate bonds. We determine that the strength of GNMA through the U.S. Federal Government guarantee is sufficient to protect us from credit losses. Other temporarily impaired securities are deemed creditworthy after internal analysis. Additionally, all are rated as investment grade by at least one major rating agency. As a result of this impairment analysis, we have concluded that these securities were not other-than-temporarily impaired at September 30, 2015.

Non-Marketable Securities

As a member of the FHLB, we are required to maintain a minimum investment in the FHLB capital stock determined by the Board of Directors of the FHLB. The minimum investment requirements can increase in the event we increase our total asset size or borrowings with the FHLB. Shares cannot be purchased or sold except between the FHLB and its members at the $100 per share par value. We held $8.4 million and $8.2 million of FHLB stock recorded at cost in other assets on the consolidated statements of condition at September 30, 2015 and December 31, 2014, respectively. The carrying amounts of these investments are reasonable estimates of fair value because the securities are restricted to member banks and they do not have a readily determinable market value. Management does not believe that the FHLB stock is other-than-temporarily-impaired, as we expect to be able to redeem this stock at cost.

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On October 28, 2015, FHLB announced a cash dividend for the third quarter of 2015 at an annualized dividend rate of 8.79% to be distributed in mid November. Cash dividends paid on FHLB capital stock are recorded as non-interest income.

As a member bank of Visa U.S.A., we hold 16,939 shares of Visa Inc. Class B common stock with a carrying value of zero, which is equal to our cost basis. These shares are restricted from resale until their conversion into Class A (voting) shares upon the termination of Visa Inc.'s covered litigation escrow account. As a result of the restriction, these shares are not considered available-for-sale and are not carried at fair value. When converting this Class B common stock to Class A common stock under the current conversion rate of 1.6483 and the closing stock price of Class A shares, the value of our shares of Class B common stock would have been $1.9 million at September 30, 2015 and $1.8 million at December 31, 2014. The conversion rate is subject to further reduction upon the final settlement of the covered litigation against Visa Inc. and its member banks. See Note 8 herein.

We invest in low income housing tax credit funds as a limited partner, which totaled $2.7 million and $1.8 million recorded in other assets as of September 30, 2015 and December 31, 2014, respectively. In the first nine months of 2015, we recognized $169 thousand of low income housing tax credits and other tax benefits, net of $131 thousand of amortization expense of low income housing tax credit investment, as a component of income tax expense. As of September 30, 2015, our unfunded commitments for these low income housing tax credit funds totaled $1.8 million. We did not recognize any impairment losses on these low income housing tax credit investments during the first nine months of 2015, or the year ended December 31, 2014.

Note 5:  Loans and Allowance for Loan Losses

Credit Quality of Loans

Past due and non-accrual loans by class as of September 30, 2015 and December 31, 2014 were as follows:

(dollars in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential 1		Installment and other consumer		Total
September 30, 2015
30-59 days past due	$	1,780	$	139	$	421	$	—	$	862	$	—	$	7	$	3,209
60-89 days past due	150		—		—		—		99		—		2		251
90 days or more past due	21		—		—		—		100		—		72		193
Total past due	1,951		139		421		—		1,061		—		81		3,653
Current	188,016		239,196		671,256		54,921		112,670		71,682		21,806		1,359,547
Total loans 3	$	189,967	$	239,335	$	671,677	$	54,921	$	113,731	$	71,682	$	21,887	$	1,363,200
Non-accrual 2	354		—		2,020		2		172		—		90		2,638
December 31, 2014
30-59 days past due	$	183	$	—	$	—	$	—	$	646	$	—	$	180	$	1,009
Non-accrual 2	—		1,403		2,429		5,134		280		—		104		9,350
Total past due	183		1,403		2,429		5,134		926		—		284		10,359
Current	210,040		229,202		671,070		43,279		109,862		73,035		16,504		1,352,992
Total loans 3	$	210,223	$	230,605	$	673,499	$	48,413	$	110,788	$	73,035	$	16,788	$	1,363,351

¹ Our residential loan portfolio does not include sub-prime loans, nor is it our practice to underwrite loans commonly referred to as "Alt-A mortgages", the characteristics of which are loans lacking full documentation, borrowers having low FICO scores or higher loan-to-value ratios.

² Amounts include $2 thousand of Purchased Credit Impaired ("PCI") loans that had stopped accreting interest at September 30, 2015 and $1.4 millionatDecember 31, 2014. Amounts exclude accreting PCI loans of $3.7 million and $3.8 million at September 30, 2015 and December 31, 2014, respectively, as we have a reasonable expectation about future cash flows to be collected and we continue to recognize accretable yield on these loans in interest income. These accreting PCI loans are included in current loans.

³ Amounts include net deferred loan costs of $861 thousand and $487 thousand at September 30, 2015 and December 31, 2014, respectively. Amounts are also net of unaccreted purchase discounts on non-PCI loans of $3.4 million and $4.4 million at September 30, 2015 and December 31, 2014, respectively.

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Our commercial loans are generally made to established small and mid-sized businesses to provide financing for their working capital needs, equipment purchases and/or acquisitions.  Management examines historical, current, and projected cash flows to determine the ability of the borrower to repay obligations as agreed. Commercial loans are made based primarily on the identified cash flows of the borrower and secondarily on the underlying collateral and/or guarantor support. The cash flows of borrowers, however, may not occur as expected, and the collateral securing these loans may fluctuate in value. Most commercial and industrial loans are secured by the assets being financed, such as accounts receivable and/or inventory, and typically include a personal guarantee. We target stable businesses with guarantors that have proven to be resilient in periods of economic stress.  Typically, the guarantors provide an additional source of repayment for most of our credit extensions.

Commercial real estate loans are subject to underwriting standards and processes similar to commercial loans discussed above. We underwrite these loans to be repaid from cash flow and to be supported by real property collateral. Underwriting standards for commercial real estate loans include, but are not limited to, debt coverage and loan-to-value ratios. Furthermore, substantially all of our loans are guaranteed by the owners of the properties.  Commercial real estate loans may be adversely affected by conditions in the real estate markets or in the general economy. In the event of a vacancy, guarantors are expected to carry the loans until a replacement tenant can be found.  The owner's substantial equity investment provides a strong economic incentive to continue to support the commercial real estate projects. As such, we have generally experienced a relatively low level of loss and delinquencies in this portfolio.

Construction loans are generally made to developers and builders to finance construction, renovation and occasionally land acquisitions. These loans are underwritten after evaluation of the borrower's financial strength, reputation, prior track record, and independent appraisals. The construction industry can be impacted by significant events, including: the inherent volatility of real estate markets and vulnerability to delays due to weather, change orders, inability to obtain construction permits, labor or material shortages, and price changes. Estimates of construction costs and value associated with the complete project may be inaccurate. Repayment of construction loans is largely dependent on the ultimate success of the project.

Consumer loans primarily consist of home equity lines of credit, other residential (tenancy-in-common, or “TIC”) loans, and installment and other consumer loans. We originate consumer loans utilizing credit score information, debt-to-income ratio and loan-to-value ratio analysis. Diversification, coupled with relatively small loan amounts that are spread across many individual borrowers, mitigates risk. Additionally, trend reports are reviewed by Management on a regular basis. Our residential loan portfolio includes TIC units almost exclusively in San Francisco. These loans tend to have more equity in their properties than conventional residential mortgages, which mitigates risk. Installment and other consumer loans include mostly loans for floating homes and mobile homes along with a small number of installment loans.

We use a risk rating system to evaluate asset quality, and to identify and monitor credit risk in individual loans, and ultimately in the portfolio. Definitions of loans that are risk graded “Special Mention” or worse are consistent with those used by the Federal Deposit Insurance Corporation ("FDIC").  Our internally assigned grades are as follows:

Pass – Loans to borrowers of acceptable or better credit quality. Borrowers in this category demonstrate fundamentally sound financial positions, repayment capacity, credit history and management expertise.  Loans in this category must have an identifiable and stable source of repayment and meet the Bank’s policy regarding debt service coverage ratios.  These borrowers are capable of sustaining normal economic, market or operational setbacks without significant financial impacts.  Negative external industry factors are generally not present.  The loan may be secured, unsecured or supported by non-real estate collateral for which the value is more difficult to determine and/or marketability is more uncertain. This category also includes “Watch” loans, where the primary source of repayment has been delayed. “Watch” is intended to be a transitional grade, with either an upgrade or downgrade within a reasonable period.

Special Mention - Potential weaknesses that deserve close attention. If left uncorrected, those potential weaknesses may result in deterioration of the payment prospects for the asset. Special Mention assets do not present sufficient risk to warrant adverse classification.

Substandard - Inadequately protected by either the current sound worth and paying capacity of the obligor or the collateral pledged, if any. A Substandard asset has a well-defined weakness or weaknesses that jeopardize(s) the liquidation of the debt. Substandard assets are characterized by the distinct possibility that we will sustain some loss if such weaknesses or deficiencies are not corrected. Well-defined weaknesses include adverse trends or developments of the borrower’s financial condition, managerial weaknesses and/or significant collateral deficiencies.

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Doubtful - Critical weaknesses that make collection or liquidation in full improbable. There may be specific pending events that work to strengthen the asset; however, the amount or timing of the loss may not be determinable. Pending events generally occur within one year of the asset being classified as Doubtful. Examples include: merger, acquisition, or liquidation; capital injection; guarantee; perfecting liens on additional collateral; and refinancing. Such loans are placed on nonaccrual status and usually are collateral-dependent.

We regularly review our credits for accuracy of risk grades whenever new information is received. Borrowers are required to submit financial information at regular intervals:

• Generally, commercial borrowers with lines of credit are required to submit financial information with reporting intervals ranging from monthly to annually depending on credit size, risk and complexity.

• Investor commercial real estate borrowers are generally required to submit rent rolls or property income statements at least annually.

• Construction loans are monitored monthly, and reviewed on an ongoing basis.

• Home equity and other consumer loans are reviewed based on delinquency.

• Loans graded “Watch” or more severe, regardless of loan type, are reviewed no less than quarterly.

The following table represents an analysis of loans by internally assigned grades, including the PCI loans, at September 30, 2015 and December 31, 2014:

(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Purchased credit-impaired		Total
Credit Risk Profile by Internally Assigned Grade:
September 30, 2015
Pass	$	166,622	$	216,017	$	662,858	$	51,680	$	111,020	$	71,596	$	21,544	$	3,249	$	1,304,586
Special Mention	18,288		12,445		2,438		—		1,419		—		—		—		34,590
Substandard	4,873		9,184		4,651		3,238		1,224		86		343		425		24,024
Total loans	$	189,783	$	237,646	$	669,947	$	54,918	$	113,663	$	71,682	$	21,887	$	3,674	$	1,363,200
December 31, 2014
Pass	$	197,659	$	205,820	$	651,548	$	41,710	$	107,933	$	70,987	$	16,101	$	2,210	$	1,293,968
Special Mention	6,776		10,406		13,304		1,008		322		—		190		1,140		33,146
Substandard	5,464		11,763		6,473		5,684		2,466		2,048		497		1,842		36,237
Total loans	$	209,899	$	227,989	$	671,325	$	48,402	$	110,721	$	73,035	$	16,788	$	5,192	$	1,363,351

Troubled Debt Restructuring

Our loan portfolio includes certain loans that have been modified in a Troubled Debt Restructuring (“TDR”), where economic concessions have been granted to borrowers experiencing financial difficulties. These concessions typically result from our loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. TDRs on nonaccrual status at the time of restructure may be returned to accruing status after Management considers the borrower’s sustained repayment performance for a reasonable period, generally six months, and obtains reasonable assurance of repayment and performance.

A loan may no longer be reported as a TDR if all of the following conditions are met:

• The loan is subsequently refinanced or restructured at current market interest rates and the new terms are consistent with the treatment of creditworthy borrowers under regular underwriting standards;

• The borrower is no longer considered to be in financial difficulty;

• Performance on the loan is reasonably assured; and;

• Existing loan did not have any forgiveness of principal or interest.

The removal of TDR status must be approved by the same management level that approved the upgrading of the loan classification.

During the first nine months of 2015, four loans with a recorded investment totaling $1.4 million were removed from TDR designation. There were no loans removed from TDR designation during 2014.

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The table below summarizes outstanding TDR loans by loan class as of September 30, 2015 and December 31, 2014. The summary includes both TDRs that are on non-accrual status and those that continue to accrue interest.

(in thousands)	As of
Recorded investment in Troubled Debt Restructurings 1	September 30, 2015		December 31, 2014
Commercial and industrial	$	4,098	$	3,584
Commercial real estate, owner-occupied	6,993		8,459
Commercial real estate, investor	733		524
Construction 2	3,238		5,684
Home equity	463		694
Other residential	2,020		2,045
Installment and other consumer	1,367		1,713
Total	$	18,912	$	22,703

¹ Includes $18.8 million and $15.9 million of TDR loans that were accruing interest as of September 30, 2015 and December 31, 2014, respectively. Includes $147 thousand and $1.8 million of acquired loans at September 30, 2015 and December 31, 2014, respectively.

²In June 2015,one TDR loan was transferred to loans held-for-sale at fair value totaling $1.5 million, net of an $839 thousand charge-off to the allowance for loan losses. The loan was subsequently sold in June 2015 for no gain or loss.

The table below presents the following information for loans modified in a TDR during the presented periods: number of contracts modified, the recorded investment in the loans prior to modification, and the recorded investment in the loans after being restructured. The table below excludes fully paid-off and fully charged-off TDR loans.

(dollars in thousands)	Number of Contracts Modified	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment at period end
Troubled Debt Restructurings during the three months ended September 30, 2015:
Commercial and industrial	1	$	700	$	700	$	700
Total	1	$	700	$	700	$	700
Troubled Debt Restructurings during the three months ended September 30, 2014:
Commercial and industrial	2	$	513	$	596	$	596
Commercial real estate, owner occupied	1	4,226		4,216		4,206
Commercial real estate, investor	1	74		74		74
Construction	1	815		814		814
Total	5	$	5,628	$	5,700	$	5,690

Troubled Debt Restructurings during the nine months ended September 30, 2015:
Commercial and industrial	5	$	1,482	$	1,582	$	1,463
Commercial real estate, investor	1	222		221		217
Total	6	$	1,704	$	1,803	$	1,680
Troubled Debt Restructurings during the nine months ended September 30, 2014:
Commercial and industrial 1	7	$	1,336	$	1,460	$	1,431
Commercial real estate, owner-occupied	1	4,226		4,216		4,206
Other residential	1	815		814		814
Home equity	2	224		224		222
Installment and other consumer	6	281		278		270
Total	17	$	6,882	$	6,992	$	6,943

¹ Excludes one contract modified and subsequently paid off during the nine months ended September 30, 2014 in the amount of $905 thousand pre-modification and post-modification.

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Modifications during the nine months endedSeptember 30, 2015 primarily involved maturity extensions and other changes to loan terms, while modifications during the nine months ended September 30, 2014 primarily involved maturity extensions and interest rate concessions. During the first nine months of 2015 and 2014, there were no defaults on loans that had been modified in a TDR within the prior twelve-month period. We report defaulted TDRs based on a payment default definition of more than ninety days past due.

Impaired Loan Balances and Their Related Allowance by Major Classes of Loans

The tables below summarize information on impaired loans and their related allowance. Total impaired loans include non-accrual loans, accruing TDR loans and accreting PCI loans that have experienced post-acquisition declines in cash flows expected to be collected.

(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Total
September 30, 2015
Recorded investment in impaired loans:
With no specific allowance recorded	$	2,108	$	2,882	$	2,537	$	2,688	$	171	$	1,220	$	329	$	11,935
With a specific allowance recorded	2,343		4,111		217		552		391		800		1,128		9,542
Total recorded investment in impaired loans	$	4,451	$	6,993	$	2,754	$	3,240	$	562	$	2,020	$	1,457	$	21,477
Unpaid principal balance of impaired loans:
With no specific allowance recorded	$	2,105	$	2,882	$	4,528	$	2,688	$	171	$	1,220	$	329	$	13,923
With a specific allowance recorded	2,398		4,111		217		674		391		800		1,128		9,719
Total unpaid principal balance of impaired loans	$	4,503	$	6,993	$	4,745	$	3,362	$	562	$	2,020	$	1,457	$	23,642
Specific allowance	$	935	$	55	$	—	$	3	$	3	$	71	$	121	$	1,188
Average recorded investment in impaired loans during the quarter ended September 30, 2015	$	4,473	$	7,695	$	2,886	$	3,262	$	610	$	2,025	$	1,439	$	22,390
Interest income recognized on impaired loans during the quarter ended September 30, 2015	$	58	$	84	$	10	$	22	$	5	$	23	$	15	$	217
Average recorded investment in impaired loans during the nine months ended September 30, 2015	$	4,121	$	8,183	$	2,916	$	4,473	$	616	$	2,033	$	1,579	$	23,921
Interest income recognized on impaired loans during the nine months ended September 30, 2015	$	176	$	228	$	24	$	40	$	14	$	69	$	51	$	602
Average recorded investment in impaired loans during the quarter ended September 30, 2014	$	5,292	$	6,982	$	3,090	$	6,678	$	857	$	1,440	$	1,847	$	26,186
Interest income recognized on impaired loans during the quarter ended September 30, 2014	$	88	$	54	$	7	$	23	$	5	$	14	$	19	$	210
Average recorded investment in impaired loans during the nine months ended September 30, 2014	$	5,818	$	5,980	$	3,186	$	6,568	$	730	$	1,726	$	1,876	$	25,884
Interest income recognized on impaired loans during the nine months ended September 30, 2014	$	309	$	220	$	21	$	67	$	14	$	56	$	56	$	743

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(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Total
December 31, 2014
Recorded investment in impaired loans:
With no specific allowance recorded	$	1,141	$	5,577	$	2,954	$	5,134	$	393	$	1,026	$	239	$	16,464
With a specific allowance recorded	2,443		2,882		—		561		300		1,019		1,554		$	8,759
Total recorded investment in impaired loans	$	3,584	$	8,459	$	2,954	$	5,695	$	693	$	2,045	$	1,793	$	25,223
Unpaid principal balance of impaired loans:
With no specific allowance recorded	$	1,186	$	6,577	$	4,945	$	7,824	$	880	$	1,026	$	239	$	22,677
With a specific allowance recorded	2,524		2,882		—		749		300		1,019		1,554		9,028
Total unpaid principal balance of impaired loans	$	3,710	$	9,459	$	4,945	$	8,573	$	1,180	$	2,045	$	1,793	$	31,705
Specific allowance	$	694	$	65	$	—	$	3	$	—	$	92	$	284	$	1,138
Average recorded investment in impaired loans during 2014	5,354		6,604		3,138		6,471		741		1,744		1,857		25,909
Interest income recognized on impaired loans during 2014	378		288		28		85		19		74		76		948

Management monitors delinquent loans continuously and identifies problem loans, generally loans graded substandard or worse, to be evaluated individually for impairment testing. Generally, the recorded investment in impaired loans is net of any charge-offs from estimated losses related to specifically-identified impaired loans when they are deemed uncollectible. The charged-off portion of impaired loans outstanding at September 30, 2015 totaled approximately $2.7 million.  In addition, the recorded investment in impaired loans is net of purchase discounts or premiums on acquired loans. At September 30, 2015 and December 31, 2014, outstanding commitments to extend credit on impaired loans, including loans to borrowers whose terms have been modified in TDRs, totaled $857 thousand and $1.4 million, respectively.

The following tables disclose loans by major portfolio category and activity in the ALLL, as well as the related ALLL disaggregated by impairment evaluation method.

Allowance for Loan Losses Rollforward for the Period
(in thousands)	Commercial and industrial			Commercial real estate, owner-occupied		Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated			Total
For the three months ended September 30, 2015
Allowance for loan losses:
Beginning balance	$	2,540		$	2,052	$	5,944		$	535		$	843		$	435		$	444		$	1,561		$	14,354
Provision (reversal)	86			17		128			158			9			(50		)	32			(380		)	—
Charge-offs	(2		)	—		—			—			—			—			(1		)	—			(3		)
Recoveries	92			—		12			—			1			—			1			—			106
Ending balance	$	2,716		$	2,069	$	6,084		$	693		$	853		$	385		$	476		$	1,181		$	14,457
For the nine months ended September 30, 2015
Allowance for loan losses:
Beginning balance	$	2,837		$	1,924	$	6,672		$	839		$	859		$	433		$	566		$	969		$	15,099
Provision (reversal)	(306		)	145		(606		)	693			(9		)	(48		)	(81		)	212			—
Charge-offs	(5		)	—		—			(839		)	—			—			(12		)	—			(856		)
Recoveries	190			—		18			—			3			—			3			—			214
Ending balance	$	2,716		$	2,069	$	6,084		$	693		$	853		$	385		$	476		$	1,181		$	14,457

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Allowance for Loan Losses Rollforward for the Period
(in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
For the three months ended September 30, 2014
Allowance for loan losses:
Beginning balance	$	3,125		$	1,979		$	6,713		$	571		$	944		$	454		$	481		$	633	$	14,900
Provision (reversal)	(263		)	9			(26		)	(33		)	(18		)	(8		)	90			249		—
Charge-offs	—			—			—			—			—			—			(2		)	—		(2		)
Recoveries	44			5			5			96			1			—			—			—		151
Ending balance	$	2,906		$	1,993		$	6,692		$	634		$	927		$	446		$	569		$	882	$	15,049
For the nine months ended September 30, 2014
Allowance for loan losses:
Beginning balance	$	3,056		$	2,012		$	6,196		$	633		$	875		$	317		$	629		$	506	$	14,224
Provision (reversal)	(208		)	(24		)	455			109			49			129			(136		)	376		750
Charge-offs	(66		)	—			—			(204		)	—			—			(6		)	—		(276		)
Recoveries	124			5			41			96			3			—			82			—		351
Ending balance	$	2,906		$	1,993		$	6,692		$	634		$	927		$	446		$	569		$	882	$	15,049

Allowance for Loan Losses and Recorded Investment in Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
As of September 30, 2015:
Ending ALLL related to loans collectively evaluated for impairment	$	1,781		$	2,013		$	6,084		$	691		$	850		$	314		$	355		$	1,181	$	13,269
Ending ALLL related to loans  individually evaluated for impairment	$	928		$	56		$	—		$	—		$	3		$	71		$	121		$	—	$	1,179
Ending ALLL related to purchased  credit-impaired loans	$	7		$	—		$	—		$	2		$	—		$	—		$	—		$	—	$	9
Total	$	2,716		$	2,069		$	6,084		$	693		$	853		$	385		$	476		$	1,181	$	14,457
Loans outstanding:
Collectively evaluated for impairment	$	185,478		$	230,653		$	667,192		$	51,681		$	113,101		$	69,662		$	20,430		$	—	$	1,338,197
Individually evaluated for impairment1	4,305			6,993			2,754			3,238			562			2,020			1,457			—		21,329
Purchased credit-impaired	184			1,689			1,731			2			68			—			—			—		3,674
Total	$	189,967		$	239,335		$	671,677		$	54,921		$	113,731		$	71,682		$	21,887		$	—	$	1,363,200
Ratio of allowance for loan losses to total loans	1.43		%	0.86		%	0.91		%	1.26		%	0.75		%	0.54		%	2.17		%	NM		1.06		%
Allowance for loan losses to non-accrual loans	767		%	NM			301		%	347		%	496		%	NM			481		%	NM		548		%

¹ Total excludes $147 thousand of PCI loans that have experienced post-acquisition declines in cash flows expected to be collected. These loans are included in the "purchased credit-impaired" amount in the next line below.

NM - Not Meaningful

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Allowance for Loan Losses and Recorded Investment in Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
As of December 31, 2014:
Ending ALLL related to loans collectively evaluated for impairment	$	2,143		$	1,859		$	6,672		$	836		$	859		$	341		$	282		$	969	$	13,961
Ending ALLL related to loans  individually evaluated for impairment	$	690		$	65		$	—		$	—		$	—		$	92		$	284		$	—	$	1,131
Ending ALLL related to purchased  credit-impaired loans	$	4		$	—		$	—		$	3		$	—		$	—		$	—		$	—	$	7
Total	$	2,837		$	1,924		$	6,672		$	839		$	859		$	433		$	566		$	969	$	15,099
Loans outstanding:
Collectively evaluated for impairment	$	206,603		$	220,933		$	668,371		$	42,718		$	110,028		$	70,990		$	14,995		$	—	$	1,334,638
Individually evaluated for impairment1	3,296			7,056			2,954			5,684			693			2,045			1,793			—		23,521
Purchased credit-impaired	324			2,616			2,174			11			67			—			—			—		5,192
Total	$	210,223		$	230,605		$	673,499		$	48,413		$	110,788		$	73,035		$	16,788		$	—	$	1,363,351
Ratio of allowance for loan losses to total loans	1.35		%	0.83		%	0.99		%	1.73		%	0.78		%	0.59		%	3.37		%	NM		1.11		%
Allowance for loan losses to non-accrual loans	NM			137		%	275		%	16		%	307		%	NM			544		%	NM		161		%

¹ Total excludes $1.7 million PCI loans that have experienced credit deterioration post-acquisition, which are included in the "purchased credit-impaired" amount in the next line below.

NM - Not Meaningful

Purchased Credit-Impaired Loans

We evaluated loans purchased in acquisitions in accordance with accounting guidance in ASC 310-30 related to loans acquired with deteriorated credit quality. Acquired loans are considered credit-impaired if there is evidence of significant deterioration of credit quality since origination and it is probable, at the acquisition date, that we will be unable to collect all contractually required payments receivable. Management has determined certain loans purchased in our two acquisitions to be PCI loans based on credit indicators such as nonaccrual status, past due status, loan risk grade, loan-to-value ratio, etc. Revolving credit agreements (e.g., home equity lines of credit and revolving commercial loans) are not considered PCI loans as cash flows cannot be reasonably estimated.

The following table reflects the outstanding balance and related carrying value of PCI loans as of September 30, 2015andDecember 31, 2014.

	September 30, 2015				December 31, 2014
PCI Loans (in thousands)	Unpaid principal balance		Carrying value		Unpaid principal balance		Carrying value
Commercial and industrial	$	258	$	184	$	479	$	324
Commercial real estate	4,355		3,420		6,831		4,790
Construction	125		2		136		11
Home equity	227		68		232		67
Total purchased credit-impaired loans	$	4,965	$	3,674	$	7,678	$	5,192

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The activities in the accretable yield, or income expected to be earned, for PCI loans were as follows:

Accretable Yield	Three months ended						Nine months ended
(dollars in thousands)	September 30, 2015			September 30, 2014			September 30, 2015			September 30, 2014
Balance at beginning of period	$	3,711		$	4,514		$	4,027		$	3,649
Removals 1	(837		)	—			(914		)	(273		)
Accretion	(128		)	(126		)	(367		)	(494		)
Reclassifications from nonaccretable difference 2	—			(242		)	—			1,264
Balance at end of period	$	2,746		$	4,146		$	2,746		$	4,146

¹ Represents the accretable difference that is relieved when a loan exits the PCI population due to pay-off, full charge-off, or transfer to repossessed assets, etc.

² Primarily relates to changes in expected credit performance and changes in expected timing of cash flows.

Pledged Loans

Our FHLB line of credit is secured under terms of a blanket collateral agreement by a pledge of certain qualifying loans with an unpaid principal balance of $831.6 million and $868.1 million at September 30, 2015 and December 31, 2014, respectively. In addition, we pledge a certain residential loan portfolio, which totaled $41.9 million and $34.0 million at September 30, 2015 and December 31, 2014, respectively, to secure our borrowing capacity with the Federal Reserve Bank (“FRB”). Also see Note 6 below.

Note 6: Borrowings

Federal Funds Purchased – The Bank had unsecured lines of credit totaling $92.0 million with correspondent banks for overnight borrowings at September 30, 2015 and December 31, 2014.  In general, interest rates on these lines approximate the federal funds target rate. At September 30, 2015 and December 31, 2014, we had no overnight borrowings outstanding under these credit facilities.

Federal Home Loan Bank Borrowings – As of September 30, 2015 and December 31, 2014, the Bank had lines of credit with the FHLB totaling $467.6 million and $450.6 million, respectively, based on eligible collateral of certain loans.  At September 30, 2015 and December 31, 2014, we had no FHLB overnight borrowings.

On February 5, 2008, the Bank entered into a ten-year borrowing agreement under the same FHLB line of credit for $15.0 million at a fixed rate of 2.07%, which remained outstanding at September 30, 2015. Interest-only payments are required every three months until the entire principal is due on February 5, 2018. The FHLB has the unconditional right to accelerate the due date on November 5, 2015 and every three months thereafter (the “put dates”). If the FHLB exercises its right to accelerate the due date, the FHLB will offer replacement funding at the current market rate, subject to certain conditions. The Bank must comply with the put date, but are not required to accept replacement funding.

At September 30, 2015, $452.3 million was remaining as available for borrowing from the FHLB, net of the term borrowing and letters of credit acquired from NorCal totaling $241 thousand.

Federal Reserve Line of Credit – The Bank has a line of credit with the FRB secured by certain residential loans.  At September 30, 2015 and December 31, 2014, the Bank had borrowing capacity under this line totaling $35.3 million and $27.7 million, respectively, and had no outstanding borrowings with the FRB.

As part of the Acquisition, Bancorp assumed two subordinated debentures due to NorCal Community Bancorp Trusts I and II (the "Trusts"), established for the sole purpose of issuing trust preferred securities on September 22, 2003 and December 29, 2005, respectively. The subordinated debentures were recorded at fair values totaling $4.95 million at acquisition date with contractual values totaling $8.2 million. The difference between the contractual balance and the fair value at acquisition date is accreted into interest expense over the lives of the debentures. Accretion on the subordinated debentures totaled $158 thousand in the first nine months of 2015 and $162 thousand in the first nine months of 2014. Bancorp has the option to defer payment of the interest on the subordinated debentures for a period of up to five years, as long as there is no default on the subordinated debentures. In the event of interest deferral, dividends to Bancorp common stockholders are prohibited. The trust preferred securities were sold and issued in private transactions pursuant to an exemption from registration under the Securities Act of 1933, as amended. Bancorp has guaranteed, on a subordinated basis, distributions and other payments due on trust preferred securities totaling

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$8.0 million issued by the Trusts which have identical maturity, repricing and payment terms as the subordinated debentures.

The following is a summary of the contractual terms of the subordinated debentures due to the Trusts as of September 30, 2015:

(in thousands)
Subordinated debentures due to NorCal Community Bancorp Trust I on October 7, 2033 with interest payable quarterly, based on 3-month LIBOR plus 3.05%, repricing quarterly (3.34% as of September 30, 2015), redeemable, in whole or in part, on any interest payment date	$	4,124
Subordinated debentures due to NorCal Community Bancorp Trust II on March 15, 2036 with interest payable quarterly, based on 3-month LIBOR plus 1.40%, repricing quarterly (1.74% as of September 30, 2015), redeemable, in whole or in part, on any interest payment date	4,124
Total	$	8,248

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Note 7:  Stockholders' Equity

Warrant

Under the United States Department of the Treasury Capital Purchase Program (the “TCPP”), Bancorp issued to the U.S. Treasury a warrant to purchase 154,242 shares of common stock at a per share exercise price of $27.23. The warrant was immediately exercisable and had an expiration date of December 5, 2018. The warrant was subsequently auctioned to two institutional investors in November 2011 and was exercised in September 2015. The warrant represented the right to purchase 157,711 shares of common stock at $26.63 per share. The cashless exercise resulted in the net issuance of 70,591 shares of common stock.

Dividends

Presented below is a summary of cash dividends paid to common shareholders, recorded as a reduction of retained earnings.

	Three months ended				Nine months ended
(in thousands, except per share data)	September 30, 2015		September 30, 2014		September 30, 2015		September 30, 2014
Cash dividends to common stockholders	$	1,316	$	1,185	$	3,936	$	3,428
Cash dividends per common share	$	0.22	$	0.20	$	0.66	$	0.58

Share-Based Payments

The fair value of stock options as of the grant date is recorded as stock-based compensation expense in the consolidated statements of comprehensive income over the requisite service period with a corresponding increase in common stock. Stock-based compensation also includes compensation expense related to the issuance of unvested restricted stock awards and performance-based stock awards pursuant to the 2007 Equity Plan. The grant-date fair value of the restricted stock awards and performance-based stock awards, which is equal to the intrinsic value on that date, is being recorded as compensation expense over the requisite service period with a corresponding increase in common stock as the shares vest.

Beginning in 2015, performance-based stock awards were issued to a selected group of employees. Stock award vesting is contingent upon the achievement of pre-established long-term performance goals set by the Compensation Committee of the Board of Directors. Performance is measured over a three-year period and cliff vested. These performance-based stock awards were granted at a maximum opportunity level, and based on the achievement of the pre-established goals, the actual payouts can range from 0% to 200% of the target award. For performance-based stock awards, an estimate is made of the number of shares expected to vest based on the probability that the performance criteria will be achieved to determine the amount of compensation expense to be recognized. The estimate is re-evaluated quarterly and total compensation expense is adjusted for any change in the current period.

In addition, we record excess tax benefits on the exercise of non-qualified stock options, the disqualifying disposition of incentive stock options and vesting of restricted stock awards as an addition to common stock with a corresponding decrease in current taxes payable.

The holders of unvested restricted stock awards and performance-based stock awards are entitled to dividends on the same per-share ratio as holders of common stock. Dividends paid on the portion of share-based awards not expected to vest are also included in stock-based compensation expense. Tax benefits on dividends paid on the portion of share-based awards expected to vest are recorded as an increase to common stock with a corresponding decrease in current taxes payable.

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Note 8:  Commitments and Contingencies

Financial Instruments with Off-Balance Sheet Risk

We make commitments to extend credit in the normal course of business to meet the financing needs of our customers. These financial instruments include commitments to extend credit in the form of loans or through standby letters of credit. Commitments to extend credit are agreements to lend to a customer as long as 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 fully drawn upon, the total commitment amount does not necessarily represent future cash requirements.

We are exposed to credit loss equal to the contract amount of the commitment in the event of nonperformance by the borrower. We use the same credit policies in making commitments as we do for on-balance-sheet instruments and we evaluate each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by us, is based on Management's credit evaluation of the borrower. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, and real property.

The contractual amount of loan commitments and standby letters of credit not reflected on the consolidated statements of condition was $375.5 million at September 30, 2015. This amount included $195.6 million under commercial lines of credit (these commitments are generally contingent upon customers maintaining specific credit standards), $125.1 million under revolving home equity lines, $38.9 million under undisbursed construction loans, $4.3 million under standby letters of credit, and a remaining $11.6 million under personal and other lines of credit. We record an allowance for losses on these off-balance sheet commitments based on an estimate of probabilities of these commitments being drawn upon according to our historical utilization experience on different types of commitments and expected loss severity. We set aside an allowance for losses on off-balance sheet commitments in the amount of $1.0 million for these commitments as of September 30, 2015 and December 31, 2014, which is recorded in interest payable and other liabilities on the consolidated statements of condition.

Operating Leases

We rent certain premises and equipment under long-term, non-cancelable operating leases expiring at various dates through the year 2028. Most of the leases contain certain renewal options and escalation clauses. At September 30, 2015, the approximate minimum future commitments payable under non-cancelable contracts for leased premises are as follows:

(in thousands)	2015		2016		2017		2018		2019		Thereafter		Total
Operating leases1	$	941	$	3,763	$	3,755	$	3,784	$	3,526	$	6,678	$	22,447

¹ Minimum payments have not been reduced by minimum sublease rentals of $271 thousand due in the future under non-

cancelable subleases.

Litigation Matters

We may be party to legal actions which arise from time to time as part of the normal course of our business.  We believe, after consultation with legal counsel, that we have meritorious defenses in these actions, and that litigation contingent liability, if any, will not have a material adverse effect on our financial position, results of operations, or cash flows.

We are responsible for our proportionate share of certain litigation indemnifications provided to Visa U.S.A. ("Visa") by its member banks in connection with lawsuits related to anti-trust charges and interchange fees ("Covered Litigation"). Visa Inc. maintains an escrow account from which settlements of, or judgments in, the covered litigation are paid. According to the latest SEC Form 10-Q filed by Visa, Inc. on July 23, 2015, at June 30, 2015, the balance of the escrow account was $1.1 billion. On January 14, 2015, following a Court-approved process to give class members who previously opted out of the damages portion of the class settlement an option to rejoin it, the class administrator submitted a report stating that it had received 1,179 requests by merchants to rejoin the cash settlement class, some of which may include multiple merchants. The conversion rate of Visa Class B common stock held by us to Class A common stock (as discussed in Note 4) may reduce if Visa makes more Covered Litigation settlement payments in the future, and the full impact to member banks is still uncertain. However, we are not aware of significant future cash settlement payments required by us on the Covered Litigation.

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Note 9: Derivative Financial Instruments and Hedging Activities

We have entered into interest rate swap agreements, primarily as an asset/liability management strategy, in order to mitigate the changes in the fair value of specified long-term fixed-rate loans (or firm commitments to enter into long-term fixed-rate loans) caused by changes in interest rates. These hedges allow us to offer long-term fixed rate loans to customers without assuming the interest rate risk of a long-term asset. Converting our fixed-rate interest payments to floating-rate interest payments, generally benchmarked to the one-month U.S. dollar LIBOR index, protects us against changes in the fair value of our loans associated with fluctuating interest rates.

The fixed-rate payment features of the interest rate swap agreements are generally structured at inception to mirror substantially all of the provisions of the hedged loan agreements. These interest rate swaps, designated and qualified as fair value hedges, are carried on the consolidated statements of condition at their fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative). The unrealized gain or loss in fair value of the hedged fixed-rate loan due to LIBOR interest rate movements is recorded as an adjustment to the hedged loan.

From time to time, we make firm commitments to enter into long-term fixed-rate loans with borrowers backed by yield maintenance agreements and simultaneously enter into forward interest rate swap agreements with correspondent banks to mitigate the change in fair value of the yield maintenance agreement. Prior to loan funding, yield maintenance agreements with net settlement features that meet the definition of a derivative are considered as non-designated hedges and are carried on the consolidated statements of condition at their fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative). The offsetting changes in the fair value of the forward swap and the yield maintenance agreement are recorded in interest income. When the fixed-rate loans are originated, the forward swaps are designated to offset the change in fair value in the loans. Subsequent to the point of the swap designations, the related yield maintenance agreements are no longer considered derivatives. Their fair value at the designation date is recorded in other assets and is amortized using the effective yield method over the life of the respective designated loans.

The net effect of the change in fair value of interest rate swaps, the amortization of the yield maintenance agreements and the change in the fair value of the hedged loans result in an insignificant amount of hedge ineffectiveness recognized in interest income.

Our credit exposure, if any, on interest rate swaps is limited to the favorable value (net of any collateral pledged to us) and interest payments of all swaps by each counterparty. Conversely, when an interest rate swap is in a liability position exceeding a certain threshold, we may be required to post collateral to the counterparty in an amount determined by the agreements. Collateral levels are monitored and adjusted on a regular basis for changes in interest rate swap values.

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As of September 30, 2015, we had eight interest rate swap agreements, which are scheduled to mature in September 2018, June 2020, August 2020, June 2031, October 2031, July 2032, August 2037 and October 2037. All of our derivatives are accounted for as fair value hedges. Our interest rate swaps are settled monthly with counterparties. Accrued interest on the swaps totaled $34 thousand and $41 thousand as of September 30, 2015 and December 31, 2014, respectively. Information on our derivatives follows:

	Asset derivatives				Liability derivatives
(in thousands)	September 30, 2015		December 31, 2014		September 30, 2015		December 31, 2014
Fair value hedges:
Interest rate contracts notional amount	$	—	$	4,589	$	29,999	$	26,899
Interest rate contracts fair value1	$	—	$	61	$	2,328	$	1,996

	Three months ended
(in thousands)	September 30, 2015			September 30, 2014
(Decrease) increase in value of designated interest rate swaps recognized in interest income	$	(813	)	$	21
Payment on interest rate swaps recorded in interest income	(231		)	(251		)
Increase (decrease) in value of hedged loans recognized in interest income	905			(54		)
Decrease in value of yield maintenance agreement recognized against interest income	(13		)	(15		)
Net loss on derivatives recognized against interest income 2	$	(152	)	$	(299	)

	Nine months ended
(in thousands)	September 30, 2015			September 30, 2014
(Decrease) increase in value of designated interest rate swaps recognized in interest income	$	(393	)	$	334
Payment on interest rate swaps recorded in interest income	(700		)	(755		)
Increase (decrease) in value of hedged loans recognized in interest income	453			(133		)
Decrease in value of yield maintenance agreement recognized against interest income	(39		)	(77		)
Net loss on derivatives recognized against interest income 2	$	(679	)	$	(631	)

¹ See Note 3 for valuation methodology.

² Includes hedge ineffectiveness gain of $79 thousand and loss of $48 thousand for the quarters ended September 30, 2015 and September 30, 2014, respectively. Ineffectiveness gain of $21 thousand and $125 thousand was recorded in interest income during the nine months ended September 30, 2015 and September 30, 2014, respectively. Changes in value of swaps were included in the assessment of hedge effectiveness. Hedge ineffectiveness is the measure of the extent to which the change in the fair value of the hedging instruments does not offset the change in the fair value of the hedged items.

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Our derivative transactions with counterparties are under International Swaps and Derivative Association (“ISDA”) master agreements that include “right of set-off” provisions. “Right of set-off” provisions are legally enforceable rights to offset recognized amounts and there may be an intention to settle such amounts on a net basis. We do not offset such financial instruments for financial reporting purposes.

Information on financial instruments that are eligible for offset in the consolidated statements of condition follows:

Offsetting of Financial Assets and Derivative Assets
(in thousands)							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts
	Gross Amounts		Offset in the		of Assets Presented
	of Recognized		Statements of		in the Statements		Financial			Cash Collateral
	Assets1		Condition		of Condition1		Instruments			Received		Net Amount
As of September 30, 2015
Derivatives by Counterparty
Counterparty A	$	—	$	—	$	—	$	—		$	—	$	—
Counterparty B	—		—		—		—			—		—
Total	$	—	$	—	$	—	$	—		$	—	$	—
As of December 31, 2014
Derivatives by Counterparty
Counterparty A	$	61	$	—	$	61	$	(61	)	$	—	$	—
Counterparty B	—		—		—		—			—		—
Total	$	61	$	—	$	61	$	(61	)	$	—	$	—

¹ Amounts exclude accrued interest totaling zero and $1 thousand at September 30, 2015 and December 31, 2014, respectively.

Offsetting of Financial Liabilities and Derivative Liabilities
(in thousands)							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts of
	Gross Amounts		Offset in the		Liabilities Presented
	of Recognized		Statements of		in the Statements of		Financial			Cash Collateral
	Liabilities2		Condition		Condition2		Instruments			Pledged			Net Amount
As of September 30, 2015
Derivatives by Counterparty
Counterparty A	$	2,001	$	—	$	2,001	$	—		$	(2,001	)	$	—
Counterparty B	327		—		327		—			(327		)	—
Total	$	2,328	$	—	$	2,328	$	—		$	(2,328	)	$	—
As of December 31, 2014
Derivatives by Counterparty
Counterparty A	$	1,616	$	—	$	1,616	$	(61	)	$	(1,360	)	$	195
Counterparty B	380		—		380		—			(380		)	—
Total	$	1,996	$	—	$	1,996	$	(61	)	$	(1,740	)	$	195

² Amounts exclude accrued interest totaling $34 thousand and $40 thousand at September 30, 2015 and December 31, 2014, respectively.

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ITEM 2.     Management’s Discussion and Analysis of Financial Condition and Results of Operations

Management's discussion of the financial condition and results of operations should be read in conjunction with the related consolidated financial statements in this Form 10-Q and with the audited consolidated financial statements and accompanying notes included in our 2014 Annual Report on Form 10-K. Average balances, including balances used in calculating certain financial ratios, are generally comprised of average daily balances.

Forward-Looking Statements

This discussion of financial results includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, (the "1933 Act") and Section 21E of the Securities Exchange Act of 1934, as amended, (the "1934 Act"). Those sections of the 1933 Act and 1934 Act provide a "safe harbor" for forward-looking statements to encourage companies to provide prospective information about their financial performance so long as they provide meaningful, cautionary statements identifying important factors that could cause actual results to differ significantly from projected results.

Our forward-looking statements include descriptions of plans or objectives of Management for future operations, products or services, and forecasts of revenues, earnings or other measures of economic performance. Forward-looking statements can be identified by the fact that they do not relate strictly to historical or current facts. They often include the words "believe," "expect," "intend," "estimate" or words of similar meaning, or future or conditional verbs preceded by "will," "would," "should," "could" or "may."

Forward-looking statements are based on Management's current expectations regarding economic, legislative, and regulatory issues that may impact our earnings in future periods. A number of factors, many of which are beyond Management’s control, could cause future results to vary materially from current Management expectations. Such factors include, but are not limited to, the monetary polices of the FRB, general economic conditions, economic uncertainty in the United States and abroad, changes in interest rates, deposit flows, loan demand, real estate values, costs or effects of future acquisitions, competition, changes in accounting principles, policies or guidelines; changes in legislation or regulation; adverse weather conditions, including the drought in California; and other economic, competitive, governmental, regulatory and technological factors (including external fraud and cyber-security) affecting our operations, pricing, products and services.

These and other important factors are detailed in the Risk Factors section of our 2014 Form 10-K as filed with the SEC, copies of which are available from us at no charge. Forward-looking statements apply only as of the date they are made. We do not undertake to update forward-looking statements to reflect circumstances or events that occur after the date the forward-looking statements are made or to reflect the occurrence of unanticipated events.

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RESULTS OF OPERATIONS

Highlights of the financial results are presented in the following table:

	Three months ended						Nine months ended
(dollars in thousands, except per share data)	September 30, 2015			September 30, 2014			September 30, 2015			September 30, 2014
For the period:
Net income	$	4,773		$	5,378		$	13,516		$	15,079
Net income per share
Basic	$	0.80		$	0.91		$	2.27		$	2.56
Diluted	$	0.79		$	0.89		$	2.23		$	2.51
Return on average equity	9.00		%	10.98		%	8.75		%	10.65		%
Return on average assets	1.00		%	1.15		%	0.97		%	1.10		%
Common stock dividend payout ratio	27.60		%	22.03		%	29.14		%	22.73		%
Average shareholders’ equity to average total assets	11.06		%	10.49		%	11.14		%	10.34		%
Efficiency ratio	60.67		%	57.23		%	62.79		%	59.24		%
Tax equivalent net interest margin	3.79		%	4.03		%	3.88		%	4.17		%
(dollars in thousands, except per share data)	September 30, 2015			December 31, 2014
At period end:
Book value per common share	$	34.97		$	33.68
Total assets	$	1,882,794		$	1,787,130
Total loans	$	1,363,200		$	1,363,351
Total deposits	$	1,635,482		$	1,551,619
Loan-to-deposit ratio	83.4		%	87.9		%
Total risk-based capital ratio - Bancorp	14.0		%	13.9		%
Common equity Tier 1 ratio - Bancorp1	12.7		%	NA
Tier 1 leverage ratio (to average assets) - Bancorp	11.0		%	10.6		%

¹Disclosure of the common equity Tier 1 ratio required under the Basel III regulatory capital rules became effective as of January 2015. See the Capital Adequacy section of Management's Discussion and Analysis for additional information.

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Executive Summary

Earnings in the third quarter of 2015 totaled $4.8 million, compared to $4.3 million in the second quarter of 2015 and $5.4 million in the third quarter of 2014. Diluted earnings per share totaled $0.79 in the third quarter of 2015, compared to $0.71 in the prior quarter and $0.89 in the same quarter last year. For the nine-month period ended September 30, 2015, earnings totaled $13.5 million compared to $15.1 million for the same period a year ago. Diluted earnings per share for the nine-month period ended September 30, 2015 totaled $2.23 compared to $2.51 in the same period a year ago. The low interest rate environment and the resulting compressed margins continue to adversely affect earnings.

Loans totaled $1,363.2 million at September 30, 2015, essentially unchanged from December 31, 2014, and increased $24.0 million from June 30, 2015. Commercial real estate and commercial and industrial (and related owner-occupied commercial real estate) accounted for the majority of approximately $139 million in new loan originations in the first nine months of 2015. Payoffs of approximately $132 million offset some of the new loan volume, and combined with utilization and amortization on existing loans resulted in no loan growth since December 31, 2014. Given the healthy economies in our market, payoff trends are difficult to predict. However, we did experience a slight easing of payoffs in the third quarter of 2015. Payoffs included our borrowers' successful completion of several large construction projects, the sale of business and commercial real estate assets, and the resolution of problem credits.

Credit quality continues to improve with non-accrual loans trending downward, totaling $2.6 million at September 30, 2015, compared to $9.4 million at December 31, 2014, and representing 0.19% of total loans compared to 0.69% for the same periods. The decrease in non-accrual loans is primarily the result of a $2.7 million performing loan returned to accrual status and the pay-off of a $1.4 million loan in the third quarter, as well as a $2.3 million land development loan that was sold in the second quarter resulting in an $839 thousand charge-off to the allowance for loan losses. Classified loans totaled $24.0 million at September 30, 2015, down from $36.2 million at December 31, 2014. Accruing loans past due 30 to 89 days totaled $3.4 million at September 30, 2015, compared to $1.0 million at December 31, 2014. The increase in past due loans is partially due to five loans to one borrower totaling $1.2 million, which were refinanced as anticipated subsequent to quarter end.

There was no provision for loan losses recorded in the third quarter of 2015, consistent with the prior quarter and the third quarter of 2014, as the continued improvement in credit quality reinforced the adequacy of the existing loan loss reserve and did not warrant a provision. The ratio of allowance for loan losses ("ALLL") to total loans decreased to 1.06% at September 30, 2015, compared to 1.11% at December 31, 2014. The ratio of ALLL to total loans excluding the impact of acquired loans, which did not have a corresponding allowance for loan loss upon purchase, would have been 1.16% and 1.24% at September 30, 2015 and December 31, 2014, respectively.

The investment securities portfolio grew $103.0 million to $420.3 million at September 30, 2015 from December 31, 2014, as excess cash and new deposits were deployed into mainly U.S. government agency securities and high quality municipal bonds. These investment purchases did not have a significant impact on the duration of our overall investment portfolio.

Deposits totaled $1,635.5 million at September 30, 2015 and grew $83.9 million over December 31, 2014. Non-interest bearing deposits increased to 46.0% of total deposits at September 30, 2015, compared to 43.2% at December 31, 2014. While day-to-day deposit volatility continues due to normal seasonal activity and new business ventures by several of our largest business customers, both average and ending balances continue to trend upward.

The total risk-based capital ratio for Bancorp was 14.0% at September 30, 2015, compared to 13.9% at December 31, 2014. The common equity tier one ratio, a regulatory ratio under Basel III (Basel Committee on Bank Supervision guidelines for determining regulatory capital), was 12.7% at September 30, 2015. As reported in the Capital Adequacy section of this document, all four of our capital ratios are well above regulatory requirements for a well-capitalized institution under the new requirements that took effect January 1, 2015.

Net interest income totaled $16.9 million in the third quarter of 2015, compared to $16.5 million in the prior quarter and $17.5 million in the same quarter a year ago. The tax-equivalent net interest margin was 3.79%, 3.86% and 4.03%, for those respective periods. The decrease in tax-equivalent net interest margin from the prior quarter and the same quarter last year primarily relates to securities representing a higher percentage of total earning assets as average deposit levels outpaced loan growth. Additionally, income recognition on acquired loans purchased at a discount continues to decline and interest rates on new loans are somewhat lower than the rates on loans that have paid off.

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Non-interest income in the third quarter of 2015 totaled $2.3 million, compared to $2.6 million in the prior quarter and $2.3 million in the same quarter a year ago. Non-interest income decreased compared to the prior quarter as the second quarter included a $305 thousand special dividend from the Federal Home Loan Bank of San Francisco and a $147 thousand payment from a bankruptcy claim recorded in miscellaneous income. The decrease was partially offset by a $72 thousand gain on the sale of four investment securities in the third quarter of 2015.

Non-interest expense totaled $11.6 million in the third quarter of 2015, compared to $12.3 million in the prior quarter and $11.4 million in the same quarter a year ago. Several non-interest expense items decreased from the prior quarter including personnel expense by $372 thousand and one-time lease accounting adjustments of $337 thousand recorded in the second quarter of 2015. Reductions were partially offset by a $324 thousand provision for losses on off-balance sheet commitments due to an increase in available loan commitments in the third quarter of 2015, compared to a $109 thousand reversal in the second quarter related to the reduced effect of historical charge-offs. The increase in non-interest expense from the third quarter of 2014, primarily relates to the provision for losses on off-balance sheet loan commitments recorded in the third quarter of 2015.

Critical Accounting Policies and Estimates

Critical accounting policies are those that are both most important to the portrayal of our financial condition and results of operations and require Management's most difficult, subjective, or complex judgments, often as a result of the need to make estimates about the effect of matters that are inherently uncertain.

Management believes that the following four accounting policies would be considered critical among the significant accounting policies described in Note 1 to the Consolidated Financial Statements included in our 2014 Form 10-K filed with the SEC on March 12, 2015.

Allowance for Loan Losses

Allowance for Loan Losses is based upon estimates of loan losses and is maintained at a level considered adequate to provide for probable losses inherent in the loan portfolio. The allowance is increased by provisions for loan losses charged against earnings and reduced by charge-offs, net of recoveries.

In periodic evaluations of the adequacy of the allowance balance, Management considers current economic conditions, known and inherent risks in the portfolio, adverse situations that may affect the borrower's ability to repay, the estimated value of any underlying collateral, our past loan loss experience and other factors. The ALLL is based on estimates, and ultimate losses may vary from current estimates. Our Board of Directors' Asset/Liability Management Committee (“ALCO”) reviews the adequacy of the ALLL at least quarterly.

The overall allowance consists of 1) specific allowances for individually identified impaired loans ("ASC 310-10") and 2) general allowances for pools of loans ("ASC 450-20"), which incorporate changing qualitative and environmental factors (e.g., portfolio growth and trends, credit concentrations, economic and regulatory factors, etc.).

The first component, specific allowances, results from the analysis of identified problem credits and the evaluation of sources of repayment including collateral, as applicable. Through Management's ongoing loan grading and credit monitoring process, individual loans are identified that have conditions indicating the borrower may be unable to pay all amounts due in accordance with the contractual terms. These loans are evaluated for impairment individually by Management. Management considers an originated loan to be impaired when it is probable we will be unable to collect all amounts due according to the contractual terms of the loan agreement. When the fair value of the impaired loan is less than the recorded investment in the loan, the difference is recorded as an impairment through the establishment of a specific allowance. For loans determined to be impaired, the extent of the impairment is measured based on the present value of expected future cash flows discounted at the loan's effective interest rate at origination (for originated loans), based on the loan's observable market price, or based on the fair value of the collateral if the loan is collateral dependent or if foreclosure is imminent. Generally with problem credits that are collateral dependent, we obtain appraisals of the collateral at least annually. We may obtain appraisals more frequently if we believe the collateral value is subject to market volatility, if a specific event has occurred to the collateral, or if we believe foreclosure is imminent.

We acquired certain loans with evidence of credit quality deterioration subsequent to their origination and for which it was probable, at acquisition, that we would be unable to collect all contractually required payments (Purchased Credit

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Impaired "PCI loans"). These loans were evaluated on an individual basis. The estimate of cash flows expected to be collected is updated each quarter and requires the continued use of key assumptions and estimates. We apply judgment to develop our estimate of cash flows given the current economic environment, impact of collateral value changes, loan workout plans, changing probability of default, loss severities and prepayments. If we have probable decreases in cash flows expected to be collected on PCI loans, specific allowances are established to account for credit deterioration subsequent to acquisition.For acquired loans not considered credit impaired ("non-PCI"), we recognize the entire fair value discount accretion to interest income, based on contractual cash flows using an effective interest rate method for term loans, and on a straight line basis for revolving lines. When a non-PCI loan is placed on nonaccrual status subsequent to acquisition, accretion stops until the loan is returned to accrual status. The level of accretion on non-PCI loans varies from period to period due to maturities and early pay-offs of these loans during the reporting periods. Subsequent to acquisition, if the probable and estimable losses for non-PCI loans exceed the amount of the remaining unaccreted discount, the excess is established as an allowance for loan losses. All acquired loans were acquired in acquisitions and do not represent loans purchased from third parties.

The second component is an estimate of the probable inherent losses in each loan pool with similar characteristics. This analysis encompasses the entire loan portfolio excluding individually identified impaired loans and acquired loans unless the purchase discount has been fully accreted. Under our allowance model, loans are evaluated on a pool basis by loan segment which is further delineated by Federal regulatory reporting codes ("CALL codes"). Each segment is assigned an expected loss factor which is primarily based on a rolling twenty-quarter look-back at our historical losses for that particular segment, as well as a number of other assumptions.

The model determines loan loss reserves based on objective and subjective factors. Objective factors include an historical loss rate using the rolling twenty-quarter look-back, changes in the volume and nature of the loan portfolio, changes in credit quality metrics (past due loans, nonaccrual loans, net charge-offs and adversely-graded loans), and the existence of credit concentrations. Subjective factors include changes in the overall economic environment, legal and regulatory conditions, experience level of lending management and other relevant staff, uncertainties related to acquisitions, as well as the quality of our loan review process. The total amount allocated is determined by applying loss factors to outstanding loans by CALL code.

While we believe we use the best information available to determine the allowance for loan losses, our results of operations could be significantly affected if circumstances differ substantially from the assumptions used in determining the allowance. A decline in local and national economic conditions, or significant changes in other assumptions, could result in a material increase in the allowance for loan losses and may adversely affect our financial condition and results of operations. In addition, the determination of the amount of the allowance for loan losses is subject to review by bank regulators, as part of their routine examination process, which may result in the establishment of additional allowance for loan losses based upon their judgment of information available to them at the time of their examination.

For further information regarding the allowance for loan losses, see Note 5 - Loans and Allowance for Loan Losses in the Consolidated Financial Statements of this Form 10-Q.

Other-than-temporary Impairment of Investment Securities

At each financial statement date, we assess whether declines in the fair value of held-to-maturity and available-for-sale securities below their costs are deemed to be other-than-temporary. We consider, among other things, (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer, and (iii) our intent and ability to retain the investment for a period of time sufficient to allow for any anticipated recovery in fair value. Evidence evaluated includes, but is not limited to, the remaining payment terms of the instrument and economic factors that are relevant to the collectability of the instrument, such as: current prepayment speeds, the current financial condition of the issuer(s), industry analyst reports, credit ratings, credit default rates, interest rate trends, the quality of any credit enhancement and the value of any underlying collateral.

For each security in an unrealized loss position ("impaired security"), we assess whether we intend to sell the security or if it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis. If we intend to sell the security or it is more likely than not we will be required to sell the security before recovery of its amortized cost basis, the entire difference between the investment’s amortized cost basis and its fair value at the balance sheet date is recognized against earnings.

For impaired securities that are not intended for sale and will not be required to be sold prior to recovery of our amortized cost basis, we determine if the impairment has a credit loss component. For both held-to-maturity and available-for-

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sale securities, if the amount of cash flows expected to be collected are less than the amortized cost, an other-than-temporary impairment shall be considered to have occurred and the credit loss component is recognized against earnings as the difference between present value of the expected future cash flows and the amortized cost. In determining the present value of the expected cash flows, we discount the expected cash flows at the effective interest rate implicit in the security at the date of purchase. The remaining difference between the fair value and the amortized basis is deemed to be due to factors that are not credit related and is recognized in other comprehensive income, net of applicable taxes.

For held-to-maturity securities, if there is no credit loss component, no impairment is recognized. The portion of other-than-temporary impairment recognized in other comprehensive income for credit impaired debt securities classified as held-to-maturity is accreted from other comprehensive income to the amortized cost of the debt security over the remaining life of the debt security in a prospective manner on the basis of the amount and timing of future estimated cash flows.

For further information regarding other-than-temporary impairment of investment securities, see Note 4 - Investment Securities in the Consolidated Financial Statements of this Form 10-Q.

Accounting for Income Taxes

Income taxes reported in the consolidated financial statements are computed based on an asset and liability approach. We recognize the amount of taxes payable or refundable for the current year and we record deferred tax assets and liabilities for future tax consequences attributable to differences between the financial statement carrying amount of existing assets and liabilities and their respective tax bases using enacted tax rates in effect for the year in which the temporary differences are expected to reverse. We record net deferred tax assets to the extent it is more likely than not that they will be realized. In evaluating our ability to recover the deferred tax assets, Management considers all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, and tax planning strategies. In projecting future taxable income, Management develops assumptions including the amount of future state and federal pretax operating income, the reversal of temporary differences, and the implementation of feasible and prudent tax planning strategies. These assumptions require significant judgment about the forecasts of future taxable income and are consistent with the plans and estimates being used to manage the underlying business. Bancorp files consolidated federal and combined state income tax returns.

We recognize the financial statement effect of a tax position when it is more likely than not, based on the technical merits and all available evidence, that the position will be sustained upon examination, including the resolution through protests, appeals or litigation processes. For tax positions that meet the more-likely-than-not threshold, we measure and record the largest amount of tax benefit that is greater than fifty percent likely of being realized upon ultimate settlement with the taxing authority. The remainder of the benefits associated with tax positions taken is recorded as unrecognized tax benefits, along with any related interest and penalties. Interest and penalties related to unrecognized tax benefits are recorded in tax expense.

In deciding whether or not our tax positions taken meet the more-likely-than-not recognition threshold, we must make judgments and interpretations about the application of inherently complex state and federal tax laws. To the extent tax authorities disagree with tax positions taken by us, our effective tax rates could be materially affected in the period of settlement with the taxing authorities. Revision of our estimate of accrued income taxes also may result from our own income tax planning, which may impact effective tax rates and results of operations for any reporting period.

We present an unrecognized tax benefit as a reduction of a deferred tax asset for a net operating loss ("NOL") carryforward, or similar tax loss or tax credit carryforward, rather than as a liability, when (1) the uncertain tax position would reduce the NOL or other carryforward under the tax law of the applicable jurisdiction and (2) we intend to and are able to use the deferred tax asset for that purpose. Otherwise, the unrecognized tax benefit is presented as a liability instead of being netted with deferred tax assets.

Fair Value Measurements

We use fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. We base our fair values on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Securities available-for-sale and derivatives are recorded at fair value on a recurring basis. Additionally, from time to time, we may be required to record certain assets at fair value on a non-recurring basis, such as purchased loans recorded at acquisition date,

Page-39

certain impaired loans, other real estate owned, and securities held-to-maturity that are other-than-temporarily impaired. These non-recurring fair value adjustments typically involve write-downs of individual assets due to application of lower-of-cost or market accounting.

When we develop our fair value measurement process, we maximize the use of observable inputs. Whenever there is no readily available market data, we use our best estimates and assumptions in determining fair value, but these estimates involve inherent uncertainties and the application of Management's judgment. As a result, if other assumptions had been used, our recorded earnings or disclosures could have been materially different from those reflected in these financial statements.

For further information regarding fair value measurements, see Note 3 - Fair Value of Assets and Liabilities in the Consolidated Financial Statements of this Form 10-Q.

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Net Interest Income

Net interest income is the difference between the interest earned on loans, investments and other interest-earning assets and the interest expense incurred on deposits and other interest-bearing liabilities. Net interest income is impacted by changes in general market interest rates and by changes in the amounts and composition of interest-earning assets and interest-bearing liabilities. Interest rate changes can create fluctuations in the net interest income due to an imbalance in the timing of repricing or maturity of assets or liabilities. We manage interest rate risk exposure with the goal of minimizing the impact of interest rate volatility on net interest income.

Net interest margin is expressed as net interest income divided by average interest-earning assets. Net interest rate spread is the difference between the average rate earned on total interest-earning assets and the average rate incurred on total interest-bearing liabilities. Both of these measures are reported on a taxable-equivalent basis. Net interest margin is the higher of the two because it reflects interest income earned on assets funded with non-interest-bearing sources of funds, which include demand deposits and stockholders’ equity.

The following table, Average Statements of Condition and Analysis of Net Interest Income, compares interest income and average interest-earning assets with interest expense and average interest-bearing liabilities for the periods presented. The table also presents net interest income, net interest margin and net interest rate spread for each period reported.

	Average Statements of Condition and Analysis of Net Interest Income
		Three months ended						Three months ended
		September 30, 2015						September 30, 2014
				Interest						Interest
		Average		Income/		Yield/		Average		Income/		Yield/
(dollars in thousands)		Balance		Expense		Rate		Balance		Expense		Rate
Assets
	Interest-bearing due from banks 1	$	51,378	$	35	0.27	%	$	58,088	$	37	0.25	%
	Investment securities 2, 3	389,260		2,094		2.15	%	332,920		1,997		2.40	%
	Loans 1, 3, 4	1,352,023		15,800		4.57	%	1,349,740		16,489		4.78	%
	Total interest-earning assets 1	1,792,661		17,929		3.91	%	1,740,748		18,523		4.16	%
	Cash and non-interest-bearing due from banks	43,054						46,258
	Bank premises and equipment, net	9,680						9,337
	Interest receivable and other assets, net	57,589						56,855
Total assets		$	1,902,984					$	1,853,198
Liabilities and Stockholders' Equity
	Interest-bearing transaction accounts	$	93,933	$	28	0.12	%	$	92,907	$	25	0.11	%
	Savings accounts	135,202		13		0.04	%	127,457		12		0.04	%
	Money market accounts	506,952		125		0.10	%	501,843		126		0.10	%
	Time accounts	157,252		212		0.53	%	152,995		229		0.59	%
	FHLB borrowing and overnight borrowings 1	15,188		79		2.07	%	15,000		79		2.07	%
	Subordinated debenture 1	5,316		105		7.73	%	5,096		106		8.14	%
	Total interest-bearing liabilities	913,843		562		0.24	%	895,298		577		0.26	%
	Demand accounts	765,284						749,361
	Interest payable and other liabilities	13,467						14,167
	Stockholders' equity	210,390						194,372
Total liabilities & stockholders' equity		$	1,902,984					$	1,853,198
Tax-equivalent net interest income/margin 1				$	17,367	3.79	%			$	17,946	4.03	%
Reported net interest income/margin 1				$	16,883	3.69	%			$	17,531	3.94	%
Tax-equivalent net interest rate spread						3.67	%					3.91	%

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		Nine months ended						Nine months ended
		September 30, 2015						September 30, 2014
				Interest						Interest
		Average		Income/		Yield/		Average		Income/		Yield/
(dollars in thousands)		Balance		Expense		Rate		Balance		Expense		Rate
Assets
	Interest-bearing due from banks 1	$	55,509	$	107	0.25	%	$	65,949	$	125	0.25	%
	Investment securities 2, 3	340,373		5,864		2.30	%	348,445		6,498		2.49	%
	Loans 1, 3, 4	1,346,689		47,063		4.61	%	1,307,611		49,606		5.00	%
	Total interest-earning assets 1	1,742,571		53,034		4.01	%	1,722,005		56,229		4.31	%
	Cash and non-interest-bearing due from banks	44,368						43,280
	Bank premises and equipment, net	9,786						9,218
	Interest receivable and other assets, net	58,153						56,550
Total assets		$	1,854,878					$	1,831,053
Liabilities and Stockholders' Equity
	Interest-bearing transaction accounts	$	93,762	$	88	0.13	%	$	104,662	$	74	0.09	%
	Savings accounts	133,553		38		0.04	%	122,958		34		0.04	%
	Money market accounts	494,142		375		0.10	%	508,544		415		0.11	%
	Time accounts	156,458		648		0.55	%	156,892		695		0.59	%
	FHLB borrowing and overnight borrowings 1	15,194		236		2.07	%	15,000		235		2.07	%
	Subordinated debenture 1	5,261		314		7.98	%	5,043		316		8.42	%
	Total interest-bearing liabilities	898,370		1,699		0.25	%	913,099		1,769		0.26	%
	Demand accounts	735,487						713,882
	Interest payable and other liabilities	14,466						14,725
	Stockholders' equity	206,555						189,347
Total liabilities & stockholders' equity		$	1,854,878					$	1,831,053
Tax-equivalent net interest income/margin 1				$	51,335	3.88	%			$	54,460	4.17	%
Reported net interest income/margin 1				49,944		3.78	%			53,299		4.08	%
Tax-equivalent net interest rate spread						3.76	%					4.05	%
1 Interest income/expense is divided by actual number of days in the period times 360 days to correspond to stated interest rate terms, where applicable.
2 Yields on available-for-sale securities are calculated based on amortized cost balances rather than fair value, as changes in fair value are reflected as a component of stockholders' equity. Investment security interest is earned on 30/360 day basis monthly.
3 Yields and interest income on tax-exempt securities and loans are presented on a taxable-equivalent basis using the Federal statutory rate of 35 percent.
4 Average balances on loans outstanding include non-performing loans. The amortized portion of net loan origination fees is included in interest income on loans, representing an adjustment to the yield.

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Third Quarter of 2015 Compared to Third Quarter of 2014

The tax-equivalent net interest margin was 3.79% in the third quarter of 2015, compared to 4.03% in the same quarter a year ago.  The decrease of twenty-four basis points primarily relates to higher securities as percentage of earning assets as average deposit levels outpaced loan growth. Additionally, accretion income related to acquired loans purchased at a discount continues to decline and interest rates on new loans are somewhat lower than the rates on loans that have paid off. The net interest spread also decreased twenty-four basis points over the same period for the same reasons.

The yield on average interest-earning assets decreased twenty-five basis points in the third quarter of 2015 compared to the third quarter of 2014 due to the reasons listed above. Average loans as a percentage of average interest-earning assets were 75.4% and 77.5% for the third quarter of 2015 and the third quarter of 2014, respectively. Total average interest-earning assets increased $51.9 million, or 3.0%, in the third quarter of 2015, compared to the third quarter of 2014, due to an increase in average securities of $56.3 million and average loans of $2.3 million, partially offset by a decrease of $6.7 million in average interest-bearing due from banks.

Market interest rates are, in part, based on the target federal funds interest rate (the interest rate banks charge each other for short-term borrowings) implemented by the Federal Reserve Open Market Committee ("FOMC"). In its most recent meeting in October 2015, the FOMC decided to keep the target interest rate at its historic low with a range of 0% to 0.25%. The accommodative monetary policy measures taken by the FRB in recent years have led to a prolonged low interest rate environment. As a result, we have experienced downward pricing pressure on our interest-earning assets that negatively impacted our net interest margin and yields on our earning assets, and we expect little relief from this downward pricing pressure and fewer opportunities to reduce future funding costs in the next year.

First Nine Months of 2015 Compared to First Nine Months of 2014

The tax-equivalent net interest margin was 3.88% in the first nine months of 2015 compared to 4.17% in the same period last year. The decrease of twenty-nine basis points was primarily due to lower accretion income and gains on payoffs of acquired loans purchased at a discount as our acquired loans continue to payoff and/or mature. The decrease also reflects the impact of the low interest rate environment on our loan and investment portfolios. The decrease is partially offset by a shift in the mix of interest earning assets to higher yielding loan balances. The net interest spread also decreased twenty-nine basis points over the same period for the same reasons.

The yield on average interest-earning assets decreased thirty basis points in the first nine months of 2015 compared to the first nine months of 2014 due to the reasons listed above. Year to date average loans as a percentage of average interest-earning assets was 77.3% and 75.9% at September 30, 2015 and 2014, respectively. Total year to date average interest-earning assets increased $20.6 million, or 1.2%, at September 30, 2015 compared to 2014, due to an increase in average loans of $39.1 million, partially offset by a decrease in average interest-bearing due from banks of $10.4 million and a decrease of $8.1 million in average investment securities.

Loans acquired through the acquisition of other banks are classified as PCI or non-PCI loans and are recorded at fair value at acquisition date. For acquired loans not considered credit impaired, the level of accretion varies due to maturities and early payoffs. Accretion on PCI loans fluctuates based on changes in cash flows expected to be collected. Gains on payoffs of PCI loans are recorded as interest income when the payoff amounts exceed the recorded investment. PCI loans totaled $3.7 million and $5.2 million at September 30, 2015 and September 30, 2014, respectively.

Accretion and gains on payoffs of purchased loans recorded to interest income were as follows:

	Three months ended						Nine months ended
	September 30, 2015			September 30, 2014			September 30, 2015			September 30, 2014
(dollars in thousands)	Dollar Amount		Basis point impact to net interest margin	Dollar Amount		Basis point impact to net interest margin	Dollar Amount		Basis point impact to net interest margin	Dollar Amount		Basis point impact to net interest margin
Accretion on PCI loans	$	128	3 bps	$	126	3 bps	$	367	3 bps	$	494	4 bps
Accretion on non-PCI loans	$	366	8 bps	$	774	17 bps	$	1,202	9 bps	$	2,817	22 bps
Gains on pay-offs of PCI loans	$	1	0 bps	$	—	0 bps	$	44	0 bps	$	622	5 bps

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Provision for Loan Losses

Management assesses the adequacy of the allowance for loan losses on a quarterly basis based on several factors including growth of the loan portfolio, analysis of probable losses in the portfolio, recent loss experience and the current economic climate.  Actual losses on loans are charged against the allowance, and the allowance is increased by loss recoveries and provisions for loan losses charged to expense.  For further discussion, see the section captioned “Critical Accounting Policies.”

There was no provision for loan losses recorded in the third quarter of 2015, consistent with the same quarter a year ago, as the existing level of loan loss reserve and continued improvement in credit quality did not warrant a provision. There was no provision for loan losses recorded in the first nine months of 2015, compared to a provision of $750 thousand for the same period a year ago.

The allowance for loan losses totaled 1.06% of loans at September 30, 2015, compared to 1.11% at December 31, 2014. Non-accrual loans totaled $2.6 million, or 0.19% of Bancorp's loan portfolio at September 30, 2015, compared to $9.4 million, or 0.69% at December 31, 2014. The decrease in non-accrual loans primarily relates to a $2.7 million loan that was returned to accrual status, a $2.3 million protracted problem land development loan that was sold in the second quarter resulting in an $839 thousand charge-off to the allowance for loan losses and the payoff of a $1.4 million PCI loan.

Impaired loan balances totaled $21.5 million at September 30, 2015, compared to $25.2 million at December 31, 2014, with specific valuation allowances of $1.2 million and $1.1 million for the same respective dates. Classified loans, which have risk grades of "substandard" or "doubtful", decreased to $24.0 million at September 30, 2015, from $36.2 million at December 31, 2014.

Net recoveries in the third quarter of 2015 totaled $103 thousand, compared to $149 thousand in the same quarter a year ago. Net charge-offs for the nine months ended September 30, 2015 totaled $642 thousand, which includes an $839 thousand charge-off in the second quarter of 2015 related to a problem land loan that was sold (discussed above), compared to net recoveries of $74 thousand for the same period a year ago. The percentage of net (recoveries)/charge-offs to average loans was (0.01)% in both the third quarter of 2015 and 2014, and was 0.05% for the nine months ended September 30, 2015, compared to (0.01)% for the same period a year ago.

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Non-interest Income

The table below details the components of non-interest income.

	Three months ended				Amount			Percent
(dollars in thousands)	September 30, 2015		September 30, 2014		Increase (Decrease)			Increase (Decrease)
Service charges on deposit accounts	$	489	$	552	$	(63	)	(11.4	)%
Wealth Management and Trust Services	568		567		1			0.2	%
Debit card interchange fees	372		375		(3		)	(0.8	)%
Merchant interchange fees	171		224		(53		)	(23.7	)%
Earnings on bank-owned life insurance	204		208		(4		)	(1.9	)%
Dividends on FHLB stock	209		149		60			40.3	%
Gain on sale of securities	72		4		68			NM
Other income	213		222		(9		)	(4.1	)%
Total non-interest income	$	2,298	$	2,301	$	(3	)	(0.1	)%
	Nine months ended				Amount			Percent
(dollars in thousands)	September 30, 2015		September 30, 2014		Increase (Decrease)			Increase (Decrease)
Service charges on deposit accounts	$	1,518	$	1,636	$	(118	)	(7.2	)%
Wealth Management and Trust Services	1,809		1,744		65			3.7	%
Debit card interchange fees	1,087		1,035		52			5.0	%
Merchant interchange fees	430		629		(199		)	(31.6	)%
Earnings on bank-owned life insurance	610		632		(22		)	(3.5	)%
Dividends on FHLB stock	817		409		408			99.8	%
Gain on sale of securities	80		93		(13		)	(14.0	)%
Other income	744		707		37			5.2	%
Total non-interest income	$	7,095	$	6,885	$	210		3.1	%

Non-interest income totaled $2.3 million in both the third quarter of 2015 and the third quarter of 2014. Gain on the sale of investment securities and increased dividends on Federal Home Loan Bank of San Francisco in the third quarter of 2015, were offset by lower merchant interchange fees and service charges on deposit accounts compared to the third quarter of 2014.

Non-interest income increased $210 thousand to $7.1 million for the first nine months of 2015 compared to $6.9 million for the first nine months of 2014. Positive variances in non-interest income in 2015 include a special dividend from the Federal Home Loan Bank of San Francisco of $305 thousand, a $147 thousand payment from a bankruptcy claim recorded in other income and an increase in wealth management and trust services income of $65 thousand. These positive variances were partially offset by lower merchant interchange fees and service charges on deposit accounts.

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Non-interest Expense

The table below details the components of non-interest expense.

	Three months ended					Amount			Percent
(dollars in thousands)	September 30, 2015		September 30, 2014			Increase (Decrease)			Increase (Decrease)
Salaries and related benefits	$	6,300	$	6,108		$	192		3.1	%
Occupancy and equipment	1,346		1,381			(35		)	(2.5	)%
Depreciation and amortization	441		383			58			15.1	%
Federal Deposit Insurance Corporation insurance	250		261			(11		)	(4.2	)%
Data processing	835		748			87			11.6	%
Professional services	493		537			(44		)	(8.2	)%
Directors' expense	182		153			29			19.0	%
Information technology	186		180			6			3.3	%
Provision for losses on off-balance sheet commitments	324		13			311			NM
Other non-interest expense
Advertising	75		107			(32		)	(29.9	)%
Other expense	1,206		1,479			(273		)	(18.5	)%
Total other non-interest expense	1,281		1,586			(305		)	(19.2	)%
Total non-interest expense	$	11,638	$	11,350		$	288		2.5	%
	Nine months ended					Amount			Percent
(dollars in thousands)	September 30, 2015		September 30, 2014			Increase (Decrease)			Increase (Decrease)
Salaries and related benefits	$	19,762	$	19,270		$	492		2.6	%
Occupancy and equipment	4,181		4,044			137			3.4	%
Depreciation and amortization	1,512		1,202			310			25.8	%
Federal Deposit Insurance Corporation insurance	739		780			(41		)	(5.3	)%
Data processing	2,413		2,856			(443		)	(15.5	)%
Professional services	1,572		1,577			(5		)	(0.3	)%
Directors' expense	620		466			154			33.0	%
Information technology	554		517			37			7.2	%
Provision for (reversal of) losses on off-balance sheet commitments	14		(2		)	16			NM
Other non-interest expense
Advertising	197		306			(109		)	(35.6	)%
Other expense	4,250		4,634			(384		)	(8.3	)%
Total other non-interest expense	4,447		4,940			(493		)	(10.0	)%
Total non-interest expense	$	35,814	$	35,650		$	164		0.5	%

Non-interest expense increased $288 thousand to $11.6 million in the third quarter of 2015 compared to $11.4 million in the third quarter of 2014. The increase was primarily due to a $324 thousand provision for off-balance sheet commitments due to an increase in unfunded loan commitments in the third quarter of 2015, higher personnel expenses due to annual merit increases and incentive compensation, partially offset by several reductions in miscellaneous other expense items.

Non-interest expense increased $164 thousand to $35.8 million for the first nine months of 2015 compared to $35.7 million for the first nine months of 2014. The increase was primarily due to an increase in incentive compensation,

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one time occupancy and depreciation expenses of $337 thousand and director expense due to education costs and strategic matters in 2015. The increase was partially offset by one-time NorCal acquisition costs for personnel, severance and data processing expenses recognized in the first nine months of 2014. The increase was also offset by a $493 thousand decrease in other operating expenses, which included a $114 thousand decrease in core deposit intangible amortization and a $104 thousand decrease in printing costs.

Provision for Income Taxes

The provision for income taxes for the third quarter of 2015 totaled $2.8 million at an effective tax rate of 36.7%, compared to $3.1 million at an effective tax rate of 36.6% in the same quarter last year. The provision for income taxes for the first nine months of 2015 totaled $7.7 million at an effective tax rate of 36.3%, compared to $8.7 million at an effective tax rate of 36.6% for the first nine months of 2014. The decrease in the effective tax rate is primarily due to the expected increase in the amount of tax-exempt interest on municipal securities and loans in 2015. These provisions reflect accruals for taxes at the applicable rates for federal income tax and California franchise tax based upon reported pre-tax income, and adjusted for the effects of all permanent differences between income for tax and financial reporting purposes (such as earnings on qualified municipal securities, BOLI and certain tax-exempt loans). As a result, there are fluctuations in the effective rate from period to period based on the relationship of net permanent differences to income before tax.

We file a consolidated return in the U.S. Federal tax jurisdiction and a combined return in the State of California tax jurisdiction. There were no ongoing federal or state income tax examinations at the issuance of this report. In June 2015, the State of California completed its examination of the 2011 and 2012 corporate income tax returns, resulting in a minor adjustment. At September 30, 2015, neither the Bank nor Bancorp had accruals for interest and penalties related to unrecognized tax benefits.

FINANCIAL CONDITION SUMMARY

At September 30, 2015, assets totaled $1,882.8 million, an increase of $95.7 million when compared to $1,787.1 million at December 31, 2014. The primary components of the increase in assets was an increase in investment securities of $103.0 million, partially offset by a decrease of $6.1 million in cash and cash equivalents. New loan volume of approximately $139 million in the first nine months of 2015 was offset by pay-offs of approximately $132 million, and combined with utilization and amortization on existing loans resulted in no loan growth over December 31, 2014. Pay-offs included our borrowers' successful completion of several large construction projects, the sale of business and commercial real estate assets, and the resolution of problem credits. Our loan and deposit pipelines are presently robust, reflecting growth prospects in all of our markets.

Investment Securities

Investment securities in our portfolio that may be backed by mortgages having sub-prime or Alt-A features (certain privately issued CMOs) represent 0.3% of our total investment portfolio at September 30, 2015, compared to 1.0% at December 31, 2014.

We sold two privately issued CMOs available for sale and four held-to-maturity securities in 2015 with total proceeds of $2.6 millionand realized a gain of $80 thousand. The sales of the held-to-maturity securities were due to evidence of significant deterioration of the municipality issuers' creditworthiness since purchase.

The table below summarizes our investment in obligations of state and political subdivisions at September 30, 2015 and December 31, 2014.

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		September 30, 2015						December 31, 2014
(dollars in thousands)		Amortized Cost		Fair Value		% of Total State and Political Subdivisions		Amortized Cost		Fair Value		% of Total State and Political Subdivisions
Within California:
	General obligation bonds	$	18,717	$	18,868	18.6	%	$	18,556	$	18,734	23.4	%
	Revenue bonds	17,016		17,370		16.9	%	21,344		21,684		27.0	%
	Tax allocation bonds	5,494		5,592		5.5	%	6,280		6,446		7.9	%
Total in California		41,227		41,830		41.0	%	46,180		46,864		58.3	%
Outside California:
	General obligation bonds	44,756		45,690		44.4	%	22,549		23,680		28.5	%
	Revenue bonds	14,660		14,725		14.6	%	10,429		10,457		13.2	%
Total outside California		59,416		60,415		59.0	%	32,978		34,137		41.7	%
Total obligations of state and political subdivisions		$	100,643	$	102,245	100.0	%	$	79,158	$	81,001	100.0	%

The portion of the portfolio outside the state of California is distributed among eighteen states. The largest concentrations are in Washington (6.7%), Texas (6.4%), Ohio (4.9%), New Jersey (4.6%), and Wisconsin (4.6%). Revenue bonds, both within and outside California, primarily consisted of bonds relating to essential services (such as public improvements and utilities) and school district bonds.

Investments in states, municipalities and political subdivisions are subject to an initial pre-purchase credit assessment and ongoing monitoring. Key considerations include:

• The soundness of a municipality’s budgetary position and stability of its tax revenues

• Debt profile and level of unfunded liabilities, diversity of revenue sources, taxing authority of the issuer

• Local demographics/economics including unemployment data, largest taxpayers and local employers, income indices and home values

• For revenue bonds, the source and strength of revenue for municipal authorities including the obligor’s financial condition and reserve levels, annual debt service and debt coverage ratio, and credit enhancement (such as insurer’s strength)

• Credit ratings by major credit rating agencies

Loans

New loan originations were strong at approximately $139 million in the first nine months of 2015, reflecting our success in sourcing commercial real estate and commercial/industrial loans from new and existing customers. Our long term strategy to diversify and grow has produced strong loan growth in several markets. Loan originations were offset by pay-offs of approximately $132 million resulting from the sale of real properties as customers took advantage of high valuations, the Bank's borrowers' successful completion of a number of large construction projects, and the resolution of problem credits.

Our residential loan portfolio does not include sub-prime loans, nor is it our practice to underwrite loans commonly referred to as "Alt-A mortgages," the characteristics of which are loans lacking full documentation, borrowers having low FICO scores or collateral compositions reflecting high loan-to-value ratios. Refer to Note 5 for the composition of outstanding loans by class.

Liabilities

In the first nine months of 2015, total liabilities increased $83.7 million to 1,670.8 million. At September 30, 2015, deposits totaled 1,635.5 million and grew $83.9 million over December 31, 2014. Non-interest-bearing deposits increased $81.4 million. CDARS time deposits increased $12.8 million from December 31, 2014, as Management

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made a strategic decision to bring back CDARS reciprocal deposits in the first quarter of 2015. While day-to-day deposit volatility continues, both average and ending balances are showing an upward trend.

Capital Adequacy

We are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a material effect on our consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, we must meet specific capital guidelines that involve quantitative measures of our assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and the Bank’s prompt corrective action classification are also subject to qualitative judgments by the regulators about components of capital, risk weightings and other factors. Prompt corrective action provisions are not directly applicable to bank holding companies.

Quantitative measures established by regulation to ensure capital adequacy require Bancorp and the Bank to maintain minimum amounts and ratios (set forth in the table below) of total and Tier 1 capital to risk-weighted assets and of Tier 1 capital to quarterly average assets.

Capital ratios are reviewed by Management on a regular basis to ensure that capital exceeds the prescribed regulatory minimums and is adequate to meet our anticipated future needs.  For all periods presented, the Bank’s ratios exceed the regulatory definition of “well capitalized” under the regulatory framework for prompt corrective action and Bancorp’s ratios exceed the required minimum ratios for capital adequacy purposes.

In July 2013, the Board of Governors of the Federal Reserve, the FDIC and the Office of the Comptroller of the Currency, finalized regulatory capital rules known as "Basel III". The rules became effective beginning January 2015, and will be phased-in and become fully implemented by January 2019. The guidelines, among other things, changed the minimum capital requirements of bank holding companies, by increasing the Tier 1 capital to risk-weighted assets ratio to 6%, and introducing a new requirement to maintain a minimum ratio of common equity Tier 1 capital to risk-weighted assets of 4.5%. By 2019, when fully phased in, the rules will require further increases to certain minimum capital requirements and a capital conservation buffer of an additional 2.5% of risk-weighted assets. Basel III permits certain banks such as us to exclude accumulated other comprehensive income or loss from regulatory capital through a one-time election in the first quarter of 2015. As it was consistent with our existing treatment, there were no changes to our capital ratios as a result of making this election. In addition, there are other deductions from capital and changes to risk-weighting of assets. The changes that affected us most significantly include:

• shifting off-balance sheet items with an original maturity of one year or less from 0% to 20% risk weight,

• moving past due loan balances from 100% to 150% risk weight,

• deducting deferred tax assets associated with NOLs and tax credits from common equity Tier 1 capital, and

• subjecting deferred tax assets related to temporary timing differences that exceed certain thresholds to 250% risk-weighting, beginning in 2018.

We have modeled our ratios under the fully phased-in Basel III rules and, based on present facts, we do not expect that we will be required to raise additional capital as a result of the fully phased-in rules.

To be categorized as well capitalized the Bank must maintain minimum total risk-based, Tier 1 risk-based, Tier 1 leverage, and common equity Tier 1 ratios as set forth in the second table below. The most recent notification from the FDIC categorized the Bank as well capitalized under the regulatory framework for prompt corrective action as of September 30, 2015. There are no conditions or events since that notification that Management believes have changed the Bank’s categories and we expect the Bank to remain well capitalized under minimum requirements for capital adequacy in accordance with Basel III rules for prompt corrective action pursuant to Section 38 of the Federal Deposit Insurance Act on a fully phased-in basis.

The Bank’s and Bancorp’s capital adequacy ratios as of September 30, 2015 and December 31, 2014 are presented in the following tables. Bancorp's Tier 1 capital includes the subordinated debentures, which are not included at the Bank level. We continued to build capital in 2015 through the accumulation of net income.

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Capital Ratios for Bancorp (dollars in thousands)	Actual Ratio				Ratio to Capital Adequacy Purposes
September 30, 2015	Amount		Ratio		Amount		Ratio
Total Capital (to risk-weighted assets)	$	222,926	14.00	%	≥$127,410		≥ 8.0%
Tier 1 Capital (to risk-weighted assets)	$	207,443	13.03	%	≥$ 95,558		≥ 6.0%
Tier 1 Capital (to average assets)	$	207,443	10.96	%	≥$ 75,713		≥ 4.0%
Common Equity Tier 1 (to risk-weighted assets)	$	202,737	12.73	%	≥$ 71,668		≥ 4.5%
December 31, 2014
Total Capital (to risk-weighted assets)	$	210,067	13.94	%	≥ $	120,580	≥ 8.0%
Tier 1 Capital (to risk-weighted assets)	$	193,956	12.87	%	≥ $	60,290	≥ 4.0%
Tier 1 Capital (to average assets)	$	193,956	10.62	%	≥ $	73,079	≥ 4.0%

Capital Ratios for the Bank (dollars in thousands)	Actual Ratio				Ratio for Capital Adequacy Purposes				Ratio to be Well Capitalized under Prompt Corrective Action Provisions
September 30, 2015	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total Capital (to risk-weighted assets)	$	216,910	13.63	%	≥$127,357		≥ 8.0%		≥$159,196		≥10.0%
Tier 1 Capital (to risk-weighted assets)	$	201,427	12.65	%	≥$ 95,517		≥ 6.0%		≥$127,357		≥ 8.0%
Tier 1 Capital (to average assets)	$	201,427	10.65	%	≥$ 75,687		≥ 4.0%		≥$ 94,608		≥ 5.0%
Common Equity Tier 1 (to risk-weighted assets)	$	201,427	12.65	%	≥$ 71,638		≥ 4.5%		≥$103,477		≥ 6.5%
December 31, 2014
Total Capital (to risk-weighted assets)	$	206,465	13.70	%	≥ $	120,553	≥ 8.0	%	≥ $	150,692	≥ 10.0	%
Tier 1 Capital (to risk-weighted assets)	$	190,354	12.63	%	≥ $	60,277	≥ 4.0	%	≥ $	90,415	≥ 6.0	%
Tier 1 Capital (to average assets)	$	190,354	10.42	%	≥ $	73,064	≥ 4.0	%	≥ $	91,330	≥ 5.0	%

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Liquidity

The goal of liquidity management is to provide adequate funds to meet loan demand and fund operating activities and deposit withdrawals. We accomplish this goal by maintaining an appropriate level of liquid assets and formal lines of credit with the FHLB, FRBSF and correspondent banks that enable us to borrow funds as needed. Our ALCO, which is comprised of certain directors of the Bank, is responsible for approving and monitoring our liquidity targets and strategies. ALCO has approved a contingency funding plan that addresses decreases in liquidity below internal requirements.

We obtain funds from the repayment and maturity of loans as well as deposit inflows, investment security maturities and pay-downs, federal funds purchases, FHLB advances, and other borrowings.  Our primary uses of funds are the origination of loans, the purchase of investment securities, withdrawals of deposits, maturities of certificates of deposits, repayment of borrowings, and dividends to common stockholders.

Management monitors our liquidity position daily. Our liquid assets totaled $332.2 million atSeptember 30, 2015which includes unencumbered available-for-sale securities and cash. We attract and retain new deposits, which depends upon the variety and effectiveness of our customer account products, service and convenience, and rates paid to customers; as well as, our financial strength. Any long-term decline in retail deposit funding would adversely impact our liquidity. Management regularly adjusts our investments in liquid assets based upon our assessment of expected loan demand, expected deposit flows, yields available on interest-earning securities and the objectives of our asset/liability management program. In addition, we have secured borrowing capacity through the FHLB and FRBSF that can be drawn upon. Management anticipates our current strong liquidity position and core deposit base will provide adequate liquidity to fund our operations.

As presented in the accompanying unaudited consolidated statements of cash flows, the sources of liquidity vary between periods. Our cash and cash equivalents at September 30, 2015 totaled $35.3 million, a decrease of $6.1 million from December 31, 2014. The primary sources of funds during the first nine months of 2015 included a net increase in deposits of $83.9 million, $88.1 million in proceeds from sales, pay-downs and maturities of investment securities, and $17.1 million net cash provided by operating activities. The primary uses of funds were $192.1 million in purchases of investment securities and cash dividends paid to common stockholders of $3.9 million.

In addition to cash and cash equivalents, we have substantial additional borrowing capacity as discussed in Note 6 to the consolidated financial statements.

Undisbursed loan commitments, which are not reflected on the consolidated statements of condition, totaled $375.5 million at September 30, 2015. This amount included $195.6 million under commercial lines of credit (these commitments are generally contingent upon customers maintaining specific credit standards), $125.1 million under revolving home equity lines, $38.9 million under undisbursed construction loans, $4.3 million under standby letters of credit, and a remaining $11.6 million under personal and other lines of credit. We have set aside an allowance for losses in the amount of $1.0 million for these commitments as of September 30, 2015, which is recorded in interest payable and other liabilities on the consolidated statements of condition. These commitments, to the extent used, are expected to be funded primarily through the repayment of existing loans, deposit growth and existing balance sheet liquidity. Over the next twelve months, $99.6 million of time deposits will mature. We expect these funds to be replaced with new deposits. Our emphasis on local deposits combined with our well capitalized equity position, provides a very stable funding base.

Since Bancorp is a holding company and does not conduct regular banking operations, its primary source of liquidity is dividends from the Bank. Under the California Financial Code, payment of a dividend from the Bank to Bancorp without advance regulatory approval is restricted to the lesser of the Bank’s retained earnings or the total of the Bank’s undistributed net profits from the previous three fiscal years. The primary uses of funds for Bancorp are shareholder dividends, interest payments on subordinated debentures and ordinary operating expenses.  Bancorp held $5.4 million of cash at September 30, 2015. Bancorp obtained dividend distributions from the Bank amounting to $6.5 million in the first nine months of 2015. These funds are deemed sufficient to cover Bancorp's operational needs and cash dividends to shareholders through the end of 2015. Management anticipates that there will be sufficient earnings at the Bank level to provide dividends to Bancorp to meet its funding requirements for the foreseeable future.

ITEM 3.     Quantitative and Qualitative Disclosure about MarketRisk

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Market risk is defined as the risk of loss arising from an adverse change in the market value (or prices) of financial instruments. Our most significant form of market risk is interest rate risk, which is inherent in our investment, borrowing, lending and deposit gathering activities. The Bank manages interest rate sensitivity to minimize the exposure of our net interest margin, earnings, and capital to changes in interest rates. Interest rate changes can create fluctuations in the net interest margin due to an imbalance in the timing of repricing or maturity of assets or liabilities.

To mitigate interest rate risk, the structure of the Consolidated Statement of Condition is managed with the objective of correlating the impacts of interest rate changes on loans and investments with those of deposits and borrowings. The asset liability management policy sets limits on the acceptable amount of change to net interest income and economic value of equity in different interest rate environments.

From time to time, we enter into interest rate swap contracts to mitigate the changes in the fair value of specified long-term fixed-rate loans and firm commitments to enter into long-term fixed-rate loans caused by changes in interest rates. See Note 9 to the Consolidated Financial Statements in this Form 10-Q.

Exposure to interest rate risk is reviewed at least quarterly by ALCO and the Board of Directors. Simulation models are used to measure interest rate risk and to evaluate strategies to improve profitability. A simplified statement of condition is prepared on a quarterly basis as a starting point, using as inputs actual loans, investments, borrowings and deposits. If potential changes to net equity value and net interest income resulting from hypothetical interest rate changes are not within the limits established by the Board of Directors, Management may adjust the asset and liability mix to bring the risk position within approved limits.

Since 2008, there have been no changes in the federal funds target rate which has been kept at an historic low level of 0-0.25%. The Bank currently has low interest rate risk and is asset sensitive (net interest margin positioned to increase if rates go up). If market rates rise, we expect net interest income to increase as adjustable rate loans at their interest rate floors start to float again as they reprice.

Based on our most recent simulation, net interest income is projected to increase by approximately 4.1% in year one given an immediate 200 basis point increase in interest rates. For modeling purposes, the likelihood of a decrease in interest rates beyond 25 basis points as of September 30, 2015 was considered to be remote given prevailing low interest rate levels. The interest rate risk is within policy guidelines established by ALCO and the Board of Directors.

ITEM 4.       Controlsand Procedures

Bank of Marin Bancorp and its subsidiary (the "Company") conducted an evaluation under the supervision and with the participation of our Management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) or 15d-15(e) under the Exchange Act of 1934 (the “Act”)) as of the end of the period covered by this report. The term disclosure controls and procedures means controls and other procedures that are designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Act (15 U.S.C. 78a etseq.) is recorded, processed, summarized and reported, within the time periods specified in the Commission's rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Act is accumulated and communicated to our Management, including our principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of the end of the period covered by this report.

During the last fiscal quarter there was no significant change in our internal control over financial reporting that has materially affected, or is reasonably likely to affect, our internal control over financial reporting.

PART II       OTHER INFORMATION

ITEM 1         Legal Proceedings

We may be party to legal actions which arise from time to time as part of the normal course of our business.  We believe, after consultation with legal counsel, that we have meritorious defenses in these actions, and that litigation

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contingency liability, if any, will not have a material adverse effect on our financial position, results of operations, or cash flows.

We are responsible for our proportionate share of certain litigation indemnifications provided to Visa U.S.A. by its member banks in connection with lawsuits related to anti-trust charges and interchange fees. For further details, see Note 13 to the Consolidated Financial Statements in Item 8 of our 2014 Form 10-K and Note 8 to the Consolidated Financial Statements in this Form 10-Q herein.

ITEM 1A      Risk Factors

There have been no material changes from the risk factors previously disclosed in our 2014 Form 10-K. Refer to “Risk Factors” in Item 1A of our 2014 Form 10-K, pages 12 through 21.

ITEM 2       Unregistered Sales of Equity Securities and Use ofProceeds

We did not have any unregistered sales or repurchases of our equity securities during the three months ended September 30, 2015.

ITEM 3       Defaults Upon Senior Securities

None.

ITEM 4      Mine Safety Disclosures

Not applicable.

ITEM 5      Other Information

None.

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ITEM 6       Exhibits

The following exhibits are filed as part of this report or hereby incorporated by references to filings previously made with the SEC.

		Incorporated by Reference
Exhibit Number	Exhibit Description	Form	File No.	Exhibit	Filing Date	Herewith
2.01	Modified Whole Bank Purchase and Assumption Agreement dated February 18, 2011 among Federal Deposit Insurance Corporation, Receiver of Charter Oak Bank, Napa, California, Federal Deposit Insurance Corporation, and Bank of Marin	8-K	001-33572	99.2	February 28, 2011
2.02	Agreement and Plan of Merger with NorCal Community Bancorp, dated July 1, 2013	8-K	001-33572	2.1	July 5, 2013
3.01	Articles of Incorporation, as amended	10-Q	001-33572	3.01	November 7, 2007
3.02	Bylaws	10-Q	001-33572	3.02	May 9, 2011
3.02a	Bylaw Amendment	8-K	001-33572	3.03	July 6, 2015
4.01	Rights Agreement dated as of July 2, 2007	8-A12B	001-33572	4.1	July 2, 2007
10.01	2007 Employee Stock Purchase Plan	S-8	333-144810	4.1	July 24, 2007
10.02	1989 Stock Option Plan	S-8	333-144807	4.1	July 24, 2007
10.03	1999 Stock Option Plan	S-8	333-144808	4.1	July 24, 2007
10.04	2007 Equity Plan	S-8	333-144809	4.1	July 24, 2007
10.05	2010 Director Stock Plan	S-8	333-167639	4.1	June 21, 2010
10.06	Form of Indemnification Agreement for Directors and Executive Officers dated August 9, 2007	10-Q	001-33572	10.06	November 7, 2007
10.07	Form of Employment Agreement dated January 23, 2009	8-K	001-33572	10.1	January 26, 2009
10.08	Intentionally left blank
10.09	2010 Annual Individual Incentive Compensation Plan	8-K	001-33572	99.1	October 21, 2010
10.10a	Salary Continuation Agreements with executive officers, Russell Colombo, Chief Executive Officer and Peter Pelham, Director of Retail Banking, dated January 1, 2011	8-K	001-33572	10.1 10.4	January 6, 2011
10.10b	Salary Continuation Agreements with executive officers, Tani Girton, Chief Financial Officer, dated October 18, 2013 and Elizabeth Reizman, Chief Credit Officer, dated July 20, 2014	8-K	001-33572	10.2 10.3	November 4, 2014
10.10c	Salary Continuation Agreements for executive officer Timothy Myers, Executive Vice President and Commercial Banking Manager, dated May 28, 2015	8-K	001-33572	10.4	June 2, 2015
10.11	2007 Form of Change in Control Agreement	8-K	001-33572	10.1	October 31, 2007
10.12	Information Technology Services Agreement with Fidelity Information Services, LLC, dated July 11, 2012	8-K	001-33572	10.1	July 17, 2012
11.01	Earnings Per Share Computation - included in Note 1 to the Consolidated Financial Statements					Filed
14.02	Code of Ethical Conduct, dated October 17, 2014	10-K	001-33572	14.02	March 12, 2015

31.01	Certification of Principal Executive Officer pursuant to Rule 13a-14(a)/15d-14(a) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed
31.02	Certification of Principal Financial Officer pursuant to Rule 13a-14(a)/15d-14(a) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002	Filed
32.01	Certification pursuant to 18 U.S.C. §1350 as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002	Filed
101.01*	XBRL Interactive Data File	Furnished

* As provided in Rule 406T of Regulation S-T, this information is furnished and not filed for purposes of Sections 11 and 12 of the Securities Act of 1933 and Section 18 of the Securities Exchange Act of 1934.

SIGNATURES

Pursuant to the requirements 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.

	Bank of Marin Bancorp
	(registrant)
November 9, 2015	/s/ Russell A. Colombo
Date	Russell A. Colombo
	President &
	Chief Executive Officer
	(Principal Executive Officer)
November 9, 2015	/s/ Tani Girton
Date	Tani Girton
	Executive Vice President &
	Chief Financial Officer
	(Principal Financial Officer)
November 9, 2015	/s/ Cecilia Situ
Date	Cecilia Situ
	First Vice President &
	Manager of Finance & Treasury
	(Principal Accounting Officer)

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EX-31.01

EXHIBIT 31.01

Certification of Principal Executive Officer pursuant to Rule 13a-14(a)/15d-14(a) as adopted pursuant to §302 of the Sarbanes-Oxley Act of 2002

I, Russell A. Colombo, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Bank of Marin Bancorp (the Registrant);

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 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 subsidiary, 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 controls over financial reporting.

November 9, 2015	/s/ Russell A. Colombo
Date	Russell A. Colombo
	President &
	Chief Executive Officer

EX-31.02

EXHIBIT 31.02

Certification of Principal Financial Officer pursuant to Rule 13a-14(a)/15d-14(a)as adopted pursuant to §302 of the Sarbanes-Oxley Act of 2002

I, Tani Girton, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Bank of Marin Bancorp (the Registrant);

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 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 subsidiary, 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 controls over financial reporting.

November 9, 2015	/s/ Tani Girton
Date	Tani Girton
	Chief Financial Officer

EX-32.01

EXHIBIT 32.01

Certification pursuant to 18 U.S.C. §1350 as adopted pursuant to §906

of the Sarbanes-Oxley Act of 2002

In connection with the quarterly report on Form 10-Q of Bank of Marin Bancorp (the Registrant) for the quarter ended September 30, 2015, as filed with the Securities and Exchange Commission, the undersigned hereby certify pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that:

1) such Form 10-Q fully complies with the requirements of Section 13(a) or 15(d)

of the Securities Exchange Act of 1934; and

2) the information contained in such Form 10-Q fairly presents, in all material

respects, the financial condition and results of operations of the Registrant.

November 9, 2015	/s/ Russell A. Colombo
Date	Russell A. Colombo
	President &
	Chief Executive Officer

November 9, 2015	/s/ Tani Girton
Date	Tani Girton
	Executive Vice President &
	Chief Financial Officer

This certification accompanies each report pursuant to §906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Registrant for purposes of §18 of the Securities Exchange Act of 1934, as amended.

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Loans and Allowance for Loan Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		$ 14,354	$ 14,900	$ 15,099	$ 14,224
Provision for loan losses		0	0	0	750
Charge-offs		(3)	(2)	(856)	(276)
Recoveries		106	151	214	351
Ending balance	$ 14,354	14,457	15,049	14,457	15,049
Ending ALLL related to loans collectively evaluated for impairment		13,269		13,269		$ 13,961
Ending ALLL related to loans individually evaluated for impairment		1,179		1,179		1,131
Ending ALLL related to purchased credit-impaired loans		14,457		14,457		15,099
Collectively evaluated for impairment		1,338,197		1,338,197		1,334,638
Individually evaluated for impairment		21,329		21,329		23,521
Total loans		$ 1,363,200		$ 1,363,200		$ 1,363,351
Ratio of allowance for loan losses to total loans		1.06%		1.06%		1.11%
Allowance for loan losses to non-accrual loans		548.00%		548.00%		161.00%
PCI loans impaired post-acquisition		$ 147		$ 147		$ 1,700
Purchase credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL related to purchased credit-impaired loans		9		9		7
Purchase credit-impaired		3,674		3,674		5,192
Commercial loans | Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		2,540	3,125	2,837	3,056
Provision for loan losses		86	(263)	(306)	(208)
Charge-offs		(2)	0	(5)	(66)
Recoveries		92	44	190	124
Ending balance	2,540	2,716	2,906	2,716	2,906
Ending ALLL related to loans collectively evaluated for impairment		1,781		1,781		2,143
Ending ALLL related to loans individually evaluated for impairment		928		928		690
Ending ALLL related to purchased credit-impaired loans		2,716		2,716		2,837
Collectively evaluated for impairment		185,478		185,478		206,603
Individually evaluated for impairment		4,305		4,305		3,296
Total loans		$ 189,967		$ 189,967		$ 210,223
Ratio of allowance for loan losses to total loans		1.43%		1.43%		1.35%
Allowance for loan losses to non-accrual loans		767.00%		767.00%
Commercial loans | Commercial and industrial | Purchase credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL related to purchased credit-impaired loans		$ 7		$ 7		$ 4
Purchase credit-impaired		184		184		324
Commercial real estate loans | Commercial real estate, owner-occupied
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		2,052	1,979	1,924	2,012
Provision for loan losses		17	9	145	(24)
Charge-offs		0	0	0	0
Recoveries		0	5	0	5
Ending balance	2,052	2,069	1,993	2,069	1,993
Ending ALLL related to loans collectively evaluated for impairment		2,013		2,013		1,859
Ending ALLL related to loans individually evaluated for impairment		56		56		65
Ending ALLL related to purchased credit-impaired loans		2,069		2,069		1,924
Collectively evaluated for impairment		230,653		230,653		220,933
Individually evaluated for impairment		6,993		6,993		7,056
Total loans		$ 239,335		$ 239,335		$ 230,605
Ratio of allowance for loan losses to total loans		0.86%		0.86%		0.83%
Allowance for loan losses to non-accrual loans						137.00%
Commercial real estate loans | Commercial real estate, owner-occupied | Purchase credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL related to purchased credit-impaired loans		$ 0		$ 0		$ 0
Purchase credit-impaired		1,689		1,689		2,616
Commercial real estate loans | Commercial real estate, investor
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		5,944	6,713	6,672	6,196
Provision for loan losses		128	(26)	(606)	455
Charge-offs		0	0	0	0
Recoveries		12	5	18	41
Ending balance	5,944	6,084	6,692	6,084	6,692
Ending ALLL related to loans collectively evaluated for impairment		6,084		6,084		6,672
Ending ALLL related to loans individually evaluated for impairment		0		0		0
Ending ALLL related to purchased credit-impaired loans		6,084		6,084		6,672
Collectively evaluated for impairment		667,192		667,192		668,371
Individually evaluated for impairment		2,754		2,754		2,954
Total loans		$ 671,677		$ 671,677		$ 673,499
Ratio of allowance for loan losses to total loans		0.91%		0.91%		0.99%
Allowance for loan losses to non-accrual loans		301.00%		301.00%		275.00%
Commercial real estate loans | Commercial real estate, investor | Purchase credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL related to purchased credit-impaired loans		$ 0		$ 0		$ 0
Purchase credit-impaired		1,731		1,731		2,174
Commercial real estate loans | Construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		535	571	839	633
Provision for loan losses		158	(33)	693	109
Charge-offs	(839)	0	0	(839)	(204)
Recoveries		0	96	0	96
Ending balance	535	693	634	693	634
Ending ALLL related to loans collectively evaluated for impairment		691		691		836
Ending ALLL related to loans individually evaluated for impairment		0		0		0
Ending ALLL related to purchased credit-impaired loans		693		693		839
Collectively evaluated for impairment		51,681		51,681		42,718
Individually evaluated for impairment		3,238		3,238		5,684
Total loans		$ 54,921		$ 54,921		$ 48,413
Ratio of allowance for loan losses to total loans		1.26%		1.26%		1.73%
Allowance for loan losses to non-accrual loans		347.00%		347.00%		16.00%
Commercial real estate loans | Construction | Purchase credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL related to purchased credit-impaired loans		$ 2		$ 2		$ 3
Purchase credit-impaired		2		2		11
Residential loans | Home equity
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		843	944	859	875
Provision for loan losses		9	(18)	(9)	49
Charge-offs		0	0	0	0
Recoveries		1	1	3	3
Ending balance	843	853	927	853	927
Ending ALLL related to loans collectively evaluated for impairment		850		850		859
Ending ALLL related to loans individually evaluated for impairment		3		3		0
Ending ALLL related to purchased credit-impaired loans		853		853		859
Collectively evaluated for impairment		113,101		113,101		110,028
Individually evaluated for impairment		562		562		693
Total loans		$ 113,731		$ 113,731		$ 110,788
Ratio of allowance for loan losses to total loans		0.75%		0.75%		0.78%
Allowance for loan losses to non-accrual loans		496.00%		496.00%		307.00%
Residential loans | Home equity | Purchase credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL related to purchased credit-impaired loans		$ 0		$ 0		$ 0
Purchase credit-impaired		68		68		67
Residential loans | Other residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		435	454	433	317
Provision for loan losses		(50)	(8)	(48)	129
Charge-offs		0	0	0	0
Recoveries		0	0	0	0
Ending balance	435	385	446	385	446
Ending ALLL related to loans collectively evaluated for impairment		314		314		341
Ending ALLL related to loans individually evaluated for impairment		71		71		92
Ending ALLL related to purchased credit-impaired loans		385		385		433
Collectively evaluated for impairment		69,662		69,662		70,990
Individually evaluated for impairment		2,020		2,020		2,045
Total loans		$ 71,682		$ 71,682		$ 73,035
Ratio of allowance for loan losses to total loans		0.54%		0.54%		0.59%
Residential loans | Other residential | Purchase credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL related to purchased credit-impaired loans		$ 0		$ 0		$ 0
Purchase credit-impaired		0		0		0
Consumer loans | Installment and other consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		444	481	566	629
Provision for loan losses		32	90	(81)	(136)
Charge-offs		(1)	(2)	(12)	(6)
Recoveries		1	0	3	82
Ending balance	444	476	569	476	569
Ending ALLL related to loans collectively evaluated for impairment		355		355		282
Ending ALLL related to loans individually evaluated for impairment		121		121		284
Ending ALLL related to purchased credit-impaired loans		476		476		566
Collectively evaluated for impairment		20,430		20,430		14,995
Individually evaluated for impairment		1,457		1,457		1,793
Total loans		$ 21,887		$ 21,887		$ 16,788
Ratio of allowance for loan losses to total loans		2.17%		2.17%		3.37%
Allowance for loan losses to non-accrual loans		481.00%		481.00%		544.00%
Consumer loans | Installment and other consumer | Purchase credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL related to purchased credit-impaired loans		$ 0		$ 0		$ 0
Purchase credit-impaired		0		0		0
Unallocated
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		1,561	633	969	506
Provision for loan losses		(380)	249	212	376
Charge-offs		0	0	0	0
Recoveries		0	0	0	0
Ending balance	$ 1,561	1,181	$ 882	1,181	$ 882
Ending ALLL related to loans collectively evaluated for impairment		1,181		1,181		969
Ending ALLL related to loans individually evaluated for impairment		0		0		0
Ending ALLL related to purchased credit-impaired loans		1,181		1,181		969
Collectively evaluated for impairment		0		0		0
Individually evaluated for impairment		0		0		0
Total loans		0		0		0
Unallocated | Purchase credit-impaired
Allowance for Loan and Lease Losses [Roll Forward]
Ending ALLL related to purchased credit-impaired loans		0		0		0
Purchase credit-impaired		$ 0		$ 0		$ 0

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Derivative Financial Instruments and Hedging Activities - Offsetting of Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	$ 2,328	$ 1,996
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Liabilities Presented in the Statements of Condition	2,328	1,996
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments	0	(61)
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Pledged	(2,328)	(1,740)
Net Amount	0	195
Interest rate swap | Other liabilities
Offsetting Liabilities [Line Items]
Accrued interest on derivative liability interest swaps	34	40
Counterparty A
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	2,001	1,616
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Liabilities Presented in the Statements of Condition	2,001	1,616
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments	0	(61)
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Pledged	(2,001)	(1,360)
Net Amount	0	195
Counterparty B
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	327	380
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Liabilities Presented in the Statements of Condition	327	380
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments	0	0
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Pledged	(327)	(380)
Net Amount	$ 0	$ 0

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Derivative Financial Instruments and Hedging Activities - Narrative (Details) - Fair value hedge $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) derivative	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) derivative	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Derivatives, Fair Value [Line Items]
Net hedge ineffectiveness, derivatives	$ 79	$ (48)	$ 21	$ 125
Designated as hedging instrument
Derivatives, Fair Value [Line Items]
Accrued interest on swaps	$ 34		$ 34		$ 41
Interest rate swap | Designated as hedging instrument
Derivatives, Fair Value [Line Items]
Number of derivative instruments | derivative	8		8
Interest rate swap | Designated as hedging instrument | Other assets
Derivatives, Fair Value [Line Items]
Interest rate contracts notional amount, Asset derivatives	$ 0		$ 0		4,589
Interest rate swap | Designated as hedging instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Interest rate contracts notional amount, Liability derivatives	29,999		29,999		26,899
Interest income
Derivatives, Fair Value [Line Items]
(Decrease) increase in value of designated interest rate swaps recognized in interest income	(813)	21	(393)	334
Payment on interest rate swaps recorded in interest income	(231)	(251)	(700)	(755)
Increase (decrease) in value of hedged loans recognized in interest income	905	(54)	453	(133)
Decrease in value of yield maintenance agreement recognized against interest income	(13)	(15)	(39)	(77)
Net loss on derivatives recognized against interest income	(152)	$ (299)	(679)	$ (631)
Assets and liabilities at fair value measured on a recurring basis | Interest rate contract | Designated as hedging instrument | Other assets
Derivatives, Fair Value [Line Items]
Interest rate contracts fair value, Asset derivatives	0		0		61
Assets and liabilities at fair value measured on a recurring basis | Interest rate contract | Designated as hedging instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Interest rate contracts fair value, Liability derivatives	$ 2,328		$ 2,328		$ 1,996

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Investment Securities - Non-Marketable Securities (Details)	9 Months Ended
	Sep. 30, 2015 USD ($) $ / shares shares	Oct. 28, 2015	Dec. 31, 2014 USD ($)
Schedule of Cost-method Investments [Line Items]
Federal Home Loan Bank stock, par value | $ / shares	$ 100
Investments in low income housing tax credit funds	$ 2,700,000		$ 1,800,000
Low income housing tax credits and other tax benefits	169,000
Low income housing amortization expense	131,000
Unfunded commitments for low income housing tax credit funds	$ 1,800,000
Visa Inc. | Visa Inc. Class B common stock
Schedule of Cost-method Investments [Line Items]
Stockholders' Equity Note, Stock Split, Conversion Ratio	1.6483
Visa Inc. Class B common stock
Schedule of Cost-method Investments [Line Items]
Number of shares of securities carried at cost | shares	16,939
Carrying value of securities carried at cost	$ 0
Fair value of Class B common stock	1,900,000		1,800,000
Subsequent event
Schedule of Cost-method Investments [Line Items]
Federal Home Loan Bank, dividend rate percentage		8.79%
Other assets
Schedule of Cost-method Investments [Line Items]
Federal Home Loan Bank stock	$ 8,400,000		$ 8,200,000

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Basis of Presentation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Weighted average basic shares outstanding (shares)	5,963	5,903	5,943	5,887
Add: Potentially dilutive common shares related to stock options (shares)	35	41	41	42
Potential common shares related to unvested restricted stock (shares)	5	4	5	4
Potential common shares related to warrants (shares)	64	66	70	63
Weighted average diluted shares outstanding (shares)	6,067	6,014	6,059	5,996
Net income	$ 4,773	$ 5,378	$ 13,516	$ 15,079	$ 19,771
Basic EPS (usd per share)	$ 0.80	$ 0.91	$ 2.27	$ 2.56
Diluted EPS (usd per share)	$ 0.79	$ 0.89	$ 2.23	$ 2.51
Weighted average anti-dilutive shares not included in the calculation of diluted EPS	42	51	35	48

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Borrowings - Lines of Credit (Details) - USD ($)		9 Months Ended
	Feb. 05, 2008	Sep. 30, 2015	Dec. 31, 2014
Line of Credit Facility [Line Items]
Periodic term lender may accelerate due date		3 months
Federal Funds Purchased | Line of credit
Line of Credit Facility [Line Items]
Amount of borrowings outstanding		$ 0	$ 0
Federal Home Loan Bank Borrowings | Line of credit
Line of Credit Facility [Line Items]
Lines of credit		$ 467,600,000	450,600,000
Term of FHLB borrowing agreements	10 years
Principal amount of borrowing agreements with FHLB	$ 15,000,000
Fixed interest rate of FHLB borrowing agreement	2.07%
Periodic term interest-only payments are due		3 months
Remaining available line of credit from FHLB		$ 452,300,000
Federal Home Loan Bank Borrowings | Letters of credit
Line of Credit Facility [Line Items]
Amount of borrowings outstanding		241,000
Federal Home Loan Bank Overnight Borrowings | Line of credit
Line of Credit Facility [Line Items]
Amount of borrowings outstanding		0	0
Federal Reserve Line of Credit | Line of credit
Line of Credit Facility [Line Items]
Lines of credit		35,300,000	27,700,000
Amount of borrowings outstanding		0	0
Unsecured Debt | Federal Funds Purchased | Line of credit
Line of Credit Facility [Line Items]
Lines of credit		$ 92,000,000	$ 92,000,000

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Loans and Allowance for Loan Losses - Troubled Debt Restructuring Modifications (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) contract	Sep. 30, 2014 USD ($) contract	Sep. 30, 2015 USD ($) loans contract	Sep. 30, 2014 USD ($) loans contract
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract	1	5	6	17
Pre-Modification Outstanding Recorded Investment	$ 700	$ 5,628	$ 1,704	$ 6,882
Post-Modification Outstanding Recorded Investment	700	5,700	1,803	6,992
Post-Modification Outstanding Recorded Investment at period end	$ 700	$ 5,690	$ 1,680	6,943
Pre-modification contract amount that subsequently paid off				905
Post-modification contract amount that subsequently paid off				$ 905
Number of modified TDR loans that defaulted | loans			0	0
Commercial loans | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract	1	2	5	7
Pre-Modification Outstanding Recorded Investment	$ 700	$ 513	$ 1,482	$ 1,336
Post-Modification Outstanding Recorded Investment	700	596	1,582	1,460
Post-Modification Outstanding Recorded Investment at period end	$ 700	$ 596	$ 1,463	$ 1,431
Commercial loans | Commercial real estate, owner-occupied
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract				1
Pre-Modification Outstanding Recorded Investment				$ 4,226
Post-Modification Outstanding Recorded Investment				4,216
Post-Modification Outstanding Recorded Investment at period end				$ 4,206
Commercial real estate loans | Commercial real estate, owner-occupied
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract		1
Pre-Modification Outstanding Recorded Investment		$ 4,226
Post-Modification Outstanding Recorded Investment		4,216
Post-Modification Outstanding Recorded Investment at period end		$ 4,206
Commercial real estate loans | Commercial real estate, investor
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract		1	1
Pre-Modification Outstanding Recorded Investment		$ 74	$ 222
Post-Modification Outstanding Recorded Investment		74	221
Post-Modification Outstanding Recorded Investment at period end		$ 74	$ 217
Commercial real estate loans | Construction
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract		1
Pre-Modification Outstanding Recorded Investment		$ 815
Post-Modification Outstanding Recorded Investment		814
Post-Modification Outstanding Recorded Investment at period end		$ 814
Residential loans | Other residential
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract				1
Pre-Modification Outstanding Recorded Investment				$ 815
Post-Modification Outstanding Recorded Investment				814
Post-Modification Outstanding Recorded Investment at period end				$ 814
Residential loans | Home equity
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract				2
Pre-Modification Outstanding Recorded Investment				$ 224
Post-Modification Outstanding Recorded Investment				224
Post-Modification Outstanding Recorded Investment at period end				$ 222
Consumer loans | Installment and other consumer
Financing Receivable, Modifications [Line Items]
Number of Contracts Modified | contract				6
Pre-Modification Outstanding Recorded Investment				$ 281
Post-Modification Outstanding Recorded Investment				278
Post-Modification Outstanding Recorded Investment at period end				$ 270

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Derivative Financial Instruments and Hedging Activities - Offsetting of Assets (Details) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	$ 0	$ 61,000
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Assets Presented in the Statements of Condition	0	61,000
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments	0	(61,000)
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Received	0	0
Net Amount	0	0
Interest rate swap | Other assets
Offsetting Assets [Line Items]
Accrued interest on derivative asset interest rate swaps	0	1,000
Counterparty A
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	0	61,000
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Assets Presented in the Statements of Condition	0	61,000
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments	0	(61,000)
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Received	0	0
Net Amount	0	0
Counterparty B
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	0	0
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Assets Presented in the Statements of Condition	0	0
Gross Amounts Not Offset in the Statements of Condition, Financial Instruments	0	0
Gross Amounts Not Offset in the Statements of Condition, Cash Collateral Received	0	0
Net Amount	$ 0	$ 0

XML

Fair Value of Assets and Liabilities

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Fair Value of Assets and Liabilities

Fair Value of Assets and Liabilities

Fair Value Hierarchy and Fair Value Measurement

We group our assets and liabilities that are measured at fair value into three levels within the fair value hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:

Level 1: Valuations are based on unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2: Valuations are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuations for which all significant assumptions are observable or can be corroborated by observable market data.

Level 3: Valuations are based on unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Values are determined using pricing models and discounted cash flow models and may include significant Management judgment and estimation.

Transfers between levels of the fair value hierarchy are recognized through our monthly and/or quarterly valuation process in the reporting period during which the event or circumstances that caused the transfer occurred.

The following table summarizes our assets and liabilities that were required to be recorded at fair value on a recurring basis.

(in thousands)   Description of Financial Instruments	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
At September 30, 2015:
Securities available-for-sale:
Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies	$	171,417	$	—	$	169,677	$	1,740
Debentures of government-sponsored agencies	$	102,165	$	—	$	102,165	$	—
Privately-issued collateralized mortgage obligations	$	4,891	$	—	$	4,891	$	—
Obligations of state and political subdivisions	$	50,377	$	—	$	50,377	$	—
Corporate bonds	$	5,006	$	—	5,006		$	—
Derivative financial liabilities (interest rate contracts)	$	2,328	$	—	$	2,328	$	—
At December 31, 2014:
Securities available-for-sale:
Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies	$	158,119	$	—	$	155,421	$	2,698
Debentures of government-sponsored agencies	$	14,557	$	—	$	14,557	$	—
Privately-issued collateralized mortgage obligations	$	7,294	$	—	$	7,294	$	—
Obligations of state and political subdivisions	$	15,880	$	—	$	15,771	$	—
Corporate bonds	$	4,998	$	—	$	5,437	$	—
Derivative financial assets (interest rate contracts)	$	61	$	—	$	61	$	—
Derivative financial liabilities (interest rate contracts)	$	1,996	$	—	$	1,996	$	—

Securities available-for-sale are recorded at fair value on a recurring basis. When available, quoted market prices (Level 1) are used to determine the fair value of securities available-for-sale. If quoted market prices are not available, we obtain pricing information from a reputable third-party service provider, who may utilize valuation techniques that use current market-based or independently sourced parameters, such as bid/ask prices, dealer-quoted prices, interest rates, benchmark yield curves, prepayment speeds, probability of default, loss severity and credit spreads (Level 2).   Level 2 securities include obligations of state and political subdivisions, U.S. agencies or government sponsored agencies' debt securities, mortgage-backed securities, government agency-issued and privately-issued collateralized mortgage obligations. As of September 30, 2015 and December 31, 2014, there were no securities that were considered Level 1 securities. As of September 30, 2015, we had one available-for-sale security that was considered a Level 3 security. The security is a U.S. government agency obligation collateralized by a small pool of business equipment loans guaranteed by the Small Business Administration program. This security is not actively traded and is owned only by a few investors. The significant unobservable data that is reflected in the fair value measurement include dealer quotes, projected prepayment speeds/average life and credit information, among other things. It was transferred to a Level 3 security during the second quarter of 2014. The decrease in unrealized gain during the first nine months of 2015 was $8 thousand.

Securities held-to-maturity may be written down to fair value (determined using the same techniques discussed above for securities available-for-sale) as a result of an other-than-temporary impairment, if any.

On a recurring basis, derivative financial instruments are recorded at fair value, which is based on the income approach using observable Level 2 market inputs, reflecting market expectations of future interest rates as of the measurement date.  Standard valuation techniques are used to calculate the present value of the future expected cash flows assuming an orderly transaction.  Valuation adjustments may be made to reflect both our own credit risk and the counterparties’ credit risk in determining the fair value of the derivatives. Level 2 inputs for the valuations are limited to observable market prices for London Interbank Offered Rate ("LIBOR") and Overnight Index Swap ("OIS") rates (for the very short term), quoted prices for LIBOR futures contracts, observable market prices for LIBOR and OIS swap rates, and one-month and three-month LIBOR basis spreads at commonly quoted intervals.  Mid-market pricing of the inputs is used as a practical expedient in the fair value measurements.  We project spot rates at reset days specified by each swap contract to determine future cash flows, then discount to present value using either LIBOR or OIS curves depending on the collateral posted as of the measurement date.  When the value of any collateral placed with counterparties is less than the interest rate derivative liability, a credit valuation adjustment ("CVA") is applied to reflect the credit risk we pose to counterparties.  We have used the spread between the Standard & Poor's BBB rated U.S. Bank Composite rate and LIBOR for the closest maturity term corresponding to the duration of the swaps to derive the CVA. A similar credit risk adjustment, correlated to the credit standing of the counterparty, is made when collateral posted by the counterparty does not fully cover their liability to Bank of Marin.

Certain financial assets may be measured at fair value on a non-recurring basis. These assets are subject to fair value adjustments that result from the application of the lower of cost or fair value accounting or write-downs of individual assets, such as impaired loans and other real estate owned ("OREO").

The following table presents the carrying value of assets and liabilities measured at fair value on a non-recurring basis and that were held in the consolidated statements of condition at each respective period end, by level within the fair value hierarchy as of September 30, 2015 and December 31, 2014. Impaired loans are only included in the following table when they are collateral dependent and the recorded investments of these loans are at the net realizable value of the collateral based on an impairment analysis.

(in thousands)	Carrying Value1		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs  (Level 3)
At September 30, 2015:
Other real estate	$	421	$	—	$	—	$	421
At December 31, 2014:
Impaired loans:
Installment and other consumer 1	$	77	$	—	$	—	$	77
Other real estate	$	461	$	—	$	—	$	461

¹ Represents collateral-dependent loan principal balances that had been generally written down to the values of the underlying collateral, net of specific valuation allowances. At December 31, 2014, the $77 thousand carrying value of a consumer loan was net of a $26 thousand specific valuation allowance. The carrying value of loans fully charged-off, which includes unsecured lines of credit, overdrafts and all other loans, is zero.

When a loan is identified as impaired, it is reported at the lower of cost or fair value, measured based on the loan's observable market price (Level 1) or the current net realizable value of the underlying collateral securing the loan, if the loan is collateral dependent (Level 3).  Net realizable value of the underlying collateral is the fair value of the collateral less estimated selling costs and any prior liens. Appraisals, recent comparable sales, offers and listing prices are factored in when valuing the collateral. We review and verify the qualifications and licenses of  the certified general appraisers used for appraising commercial properties or certified residential appraisers for residential properties. Real estate appraisals may utilize a combination of approaches including replacement cost, sales comparison and the income approach. Comparable sales and income data are analyzed by the appraisers and adjusted to reflect differences between them and the subject property such as property type, leasing status and physical condition. When appraisals are received, Management reviews the assumptions and methodology utilized in the appraisal, as well as the overall resulting value in conjunction with independent data sources such as recent market data and industry-wide statistics. We generally use a 6% discount for selling costs which is applied to all properties, regardless of size. Appraised values may be adjusted to reflect changes in market conditions that have occurred subsequent to the appraisal date, or for revised estimates regarding the timing or cost of the property sale. These adjustments are based on qualitative judgments made by Management on a case-by-case basis and are generally unobservable valuation inputs as they are specific to the underlying collateral. There have been no significant changes in the valuation techniques during the nine months ended September 30, 2015.

OREO represents collateral acquired through foreclosure and is initially recorded at fair value as established by a current appraisal, adjusted for disposition costs. Subsequently, OREO is measured at lower of cost or fair value. OREO values are reviewed on an ongoing basis and any subsequent decline in fair value is recorded as a foreclosed asset expense in the current period. The value of OREO is determined based on independent appraisals, similar to the process used for impaired loans, discussed above, and is classified as Level 3. All OREO was acquired from Bank of Alameda as part of the Acquisition. There was a $40 thousand decline in the estimated fair value of the OREO during the first nine months ended September 30, 2015 recorded in other non-interest expense.

Disclosures about Fair Value of Financial Instruments

The table below is a summary of fair value estimates for financial instruments as of September 30, 2015 and December 31, 2014, excluding financial instruments recorded at fair value on a recurring basis (summarized in the first table in this note). The carrying amounts in the following table are recorded in the consolidated statements of condition under the indicated captions. We have excluded non-financial assets and non-financial liabilities defined by the Codification (ASC 820-10-15-1A), such as Bank premises and equipment, deferred taxes and other liabilities.  In addition, we have not disclosed the fair value of financial instruments specifically excluded from disclosure requirements of the Financial Instruments Topic of the Codification (ASC 825-10-50-8), such as Bank-owned life insurance policies.

	September 30, 2015					December 31, 2014
(in thousands)	Carrying Amounts		Fair Value		Fair Value Hierarchy	Carrying Amounts		Fair Value		Fair Value Hierarchy
Financial assets
Cash and cash equivalents	$	35,315	$	35,315	Level 1	$	41,367	$	41,367	Level 1
Investment securities held-to-maturity	86,471		88,104		Level 2	116,437		118,643		Level 2
Loans, net	1,348,743		1,364,940		Level 3	1,348,252		1,361,244		Level 3
Interest receivable	5,606		5,606		Level 2	5,909		5,909		Level 2
Financial liabilities
Deposits	1,635,482		1,636,088		Level 2	1,551,619		1,552,446		Level 2
Federal Home Loan Bank borrowings	15,000		15,437		Level 2	15,000		15,484		Level 2
Subordinated debentures	5,343		5,178		Level 3	5,185		5,290		Level 3
Interest payable	200		200		Level 2	213		213		Level 2

Following is a description of methods and assumptions used to estimate the fair value of each class of financial instrument not recorded at fair value but required for disclosure purposes:

Cash and Cash Equivalents - The carrying amounts of cash and cash equivalents approximate their fair value because of the short-term nature of these instruments.

Held-to-maturity Securities - Held-to-maturity securities, which generally consist of mortgage-backed securities, obligations of state and political subdivisions and corporate bonds, are recorded at their amortized cost. The fair value for disclosure purposes is determined using methodologies similar to those described above for available-for-sale securities using Level 2 inputs. If Level 2 inputs are not available, we may utilize pricing models that incorporate unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities (Level 3).  As of September 30, 2015 and December 31, 2014, we did not hold any held-to-maturity securities whose fair value was measured using significant unobservable inputs.

Loans - The fair value of loans with variable interest rates approximates current carrying value, because their rates are regularly adjusted to current market rates. The fair value of fixed rate loans or variable loans at negotiated interest rate floors or ceilings with remaining maturities in excess of one year is estimated by discounting the future cash flows using current market rates at which similar loans would be made to borrowers with similar creditworthiness and similar remaining maturities. The allowance for loan losses (“ALLL”) is considered to be a reasonable estimate of the portion of loan discount attributable to credit risks.

Interest Receivable and Payable - The interest receivable and payable balances approximate their fair value due to the short-term nature of their settlement dates.

Deposits - The fair value of deposits without stated maturity, such as transaction accounts, savings accounts and money market accounts, is the amount payable on demand at the reporting date. The fair value of time deposits is estimated by discounting the future cash flows using current rates offered for deposits of similar remaining maturities.

Federal Home Loan Bank Borrowings - The fair value is estimated by discounting the future cash flows using current rates offered by the Federal Home Loan Bank of San Francisco ("FHLB") for similar credit advances corresponding to the remaining duration of our fixed-rate credit advances.

Subordinated Debentures - As part of the Acquisition, we assumed two subordinated debentures from NorCal. See Note 6 for further information. The fair values of the subordinated debentures were estimated by discounting the future cash flows (interest payment at a rate of three-month LIBOR plus 3.05% and 1.40%) to their present values using current market rates at which similar debt securities would be issued with similar credit ratings as ours and similar remaining maturities. Each interest payment was discounted at the spot rate for the corresponding term, determined based on the yields and terms of comparable trust preferred securities, plus a liquidity premium. In July 2010, the Dodd-Frank Act was signed into law and limits the ability of certain bank holding companies to treat trust preferred security debt issuances as Tier 1 capital. This law effectively closed the trust-preferred securities markets for new issuances and led to the absence of observable or comparable transactions in the market place. Due to the use of unobservable inputs of trust preferred securities, we consider the fair value to be a Level 3 measurement.

Commitments - The value of unrecognized financial instruments is estimated based on the fee income associated with the commitments which, in the absence of credit exposure, is considered to approximate their settlement value. The fair value of commitment fees was not material at September 30, 2015 and December 31, 2014.

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Borrowings - Subordinated Debt (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($) debenture	Sep. 30, 2014 USD ($)
Debt Instrument [Line Items]
Number of subordinated debentures acquired | debenture	2
Accretion of discount on subordinated debentures	$ 158	$ 162
Amount guaranteed, on subordinated basis, distributions and other payments on trust preferred securities	$ 8,000
Subordinated debenture
Debt Instrument [Line Items]
Number of subordinated debentures acquired | debenture	2
Subordinated debentures	$ 4,950
Contractual value of subordinated debt	8,248
Accretion of discount on subordinated debentures	$ 158	$ 162
Debenture distribution deferral period (up to number of years)	5 years
Subordinated debenture | NorCal Community Bancorp Trust I
Debt Instrument [Line Items]
Contractual value of subordinated debt	$ 4,124
Effective interest rate	3.34%
Basis spread on subordinated debentures	3.05%
Subordinated debenture | NorCal Community Bancorp Trust II
Debt Instrument [Line Items]
Contractual value of subordinated debt	$ 4,124
Effective interest rate	1.74%
Basis spread on subordinated debentures	1.40%

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Investment Securities - Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, Amortized Cost	$ 86,471	$ 116,437
Held to maturity, Fair Value	88,104	118,643
Held-to-maturity, Gross Unrealized Gains	1,648	2,271
Held-to-maturity, Gross Unrealized Losses	(15)	(65)
Available-for-sale, Amortized Cost	331,024	199,045
Available-for-sale, Fair Value	333,856	200,848
Available-for-sale, Gross Unrealized Gains	3,018	2,234
Available-for-sale, Gross Unrealized Losses	(186)	(431)
Total investment securities, Amortized Cost	417,495	315,482
Total investment securities, Fair Value	421,960	319,491
Total investment securities, Gross Unrealized Gains	4,666	4,505
Total investment securities, Gross Unrealized Losses	(201)	(496)
Mortgage-backed Securities, Issued by FHLMC and FNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, Amortized Cost	116,513	92,963
Available-for-sale, Fair Value	117,963	94,214
Available-for-sale, Gross Unrealized Gains	1,488	1,262
Available-for-sale, Gross Unrealized Losses	(38)	(11)
CMOs issued by FNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, Amortized Cost	16,211	14,771
Available-for-sale, Fair Value	16,385	14,790
Available-for-sale, Gross Unrealized Gains	208	77
Available-for-sale, Gross Unrealized Losses	(34)	(58)
CMOs issued by FHLMC
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, Amortized Cost	24,645	31,238
Available-for-sale, Fair Value	24,869	31,260
Available-for-sale, Gross Unrealized Gains	239	109
Available-for-sale, Gross Unrealized Losses	(15)	(87)
CMOs issued by GNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, Amortized Cost	11,951	17,573
Available-for-sale, Fair Value	12,200	17,855
Available-for-sale, Gross Unrealized Gains	254	298
Available-for-sale, Gross Unrealized Losses	(5)	(16)
Debentures of government sponsored agencies
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, Amortized Cost	101,987	14,694
Available-for-sale, Fair Value	102,165	14,557
Available-for-sale, Gross Unrealized Gains	229	95
Available-for-sale, Gross Unrealized Losses	(51)	(232)
Privately-issued CMOs
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, Amortized Cost	4,700	7,137
Available-for-sale, Fair Value	4,891	7,294
Available-for-sale, Gross Unrealized Gains	193	172
Available-for-sale, Gross Unrealized Losses	(2)	(15)
Obligations of state and political subdivisions
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, Amortized Cost	50,073	15,733
Available-for-sale, Fair Value	50,377	15,880
Available-for-sale, Gross Unrealized Gains	345	155
Available-for-sale, Gross Unrealized Losses	(41)	(8)
Corporate bonds
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, Amortized Cost	4,944	4,936
Available-for-sale, Fair Value	5,006	4,998
Available-for-sale, Gross Unrealized Gains	62	66
Available-for-sale, Gross Unrealized Losses	0	(4)
Obligations of state and political subdivisions
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, Amortized Cost	50,570	63,425
Held to maturity, Fair Value	51,867	65,121
Held-to-maturity, Gross Unrealized Gains	1,302	1,736
Held-to-maturity, Gross Unrealized Losses	(5)	(40)
Corporate bonds
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, Amortized Cost	23,578	40,257
Held to maturity, Fair Value	23,662	40,448
Held-to-maturity, Gross Unrealized Gains	87	216
Held-to-maturity, Gross Unrealized Losses	(3)	(25)
MBS pass-through securities issued by FHLMC and FNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held to maturity, Amortized Cost	12,323	12,755
Held to maturity, Fair Value	12,575	13,074
Held-to-maturity, Gross Unrealized Gains	259	319
Held-to-maturity, Gross Unrealized Losses	$ (7)	$ 0

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Fair Value of Assets and Liabilities - Fair Value of Financial Instruments (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($) debenture	Dec. 31, 2014 USD ($)
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Investment securities held to maturity	$ 88,104	$ 118,643
Subordinated Debt [Abstract]
Number of subordinated debentures acquired | debenture	2
Subordinated debenture
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Subordinated debentures	$ 4,950
Subordinated Debt [Abstract]
Number of subordinated debentures acquired | debenture	2
NorCal Community Bancorp Trust I | Subordinated debenture
Subordinated Debt [Abstract]
Basis spread on subordinated debentures	3.05%
NorCal Community Bancorp Trust II | Subordinated debenture
Subordinated Debt [Abstract]
Basis spread on subordinated debentures	1.40%
Carrying Value | Fair Value Hierarchy, Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash and cash equivalents	$ 35,315	41,367
Carrying Value | Fair Value Hierarchy, Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Investment securities held to maturity	86,471	116,437
Interest receivable	5,606	5,909
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Deposits	1,635,482	1,551,619
Federal Home Loan Bank borrowings	15,000	15,000
Interest payable	200	213
Carrying Value | Fair Value Hierarchy, Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Loans, net	1,348,743	1,348,252
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Subordinated debentures	5,343	5,185
Fair Value | Fair Value Hierarchy, Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash and cash equivalents	35,315	41,367
Fair Value | Fair Value Hierarchy, Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Investment securities held to maturity	88,104	118,643
Interest receivable	5,606	5,909
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Deposits	1,636,088	1,552,446
Federal Home Loan Bank borrowings	15,437	15,484
Interest payable	200	213
Fair Value | Fair Value Hierarchy, Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Loans, net	1,364,940	1,361,244
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Subordinated debentures	$ 5,178	$ 5,290

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Stockholders' Equity (Details) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015 $ / shares shares	Nov. 30, 2011 investor	Sep. 30, 2015 USD ($) $ / shares shares	Sep. 30, 2014 USD ($) $ / shares	Sep. 30, 2015 USD ($) $ / shares shares	Sep. 30, 2014 USD ($) $ / shares	Dec. 31, 2014 USD ($)
Class of Stock [Line Items]
Number of institutional investors that purchased warrant | investor		2
Cash dividends to common stockholders | $			$ 1,316	$ 1,185	$ 3,936	$ 3,428	$ 4,733
Cash dividends paid per common share | $ / shares			$ 0.22	$ 0.20	$ 0.66	$ 0.58
Performance-based stock awards
Class of Stock [Line Items]
Vesting period of performance-based stock awards					3 years
Performance-based stock awards | Minimum
Class of Stock [Line Items]
Vesting percentage of performance-based awards					0.00%
Performance-based stock awards | Maximum
Class of Stock [Line Items]
Vesting percentage of performance-based awards					200.00%
Common stock
Class of Stock [Line Items]
Number of common stock shares authorized to be purchased by warrant	157,711		157,711		157,711
Exercise price of warrant to purchase common stock (usd per share) | $ / shares	$ 26.63		$ 26.63		$ 26.63
Net issuance of shares of common stock from cashless exercise	70,591
U.S. Treasury Capital Purchase Program (TCPP) | Common stock
Class of Stock [Line Items]
Number of common stock shares authorized to be purchased by warrant	154,242		154,242		154,242
Exercise price of warrant to purchase common stock (usd per share) | $ / shares	$ 27.23		$ 27.23		$ 27.23

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Investment Securities - Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Held to Maturity, Amortized Cost, Within one year	$ 34,325	$ 39,778
Held to Maturity, Amortized Cost, After one but within five years	31,072	50,983
Held to Maturity, Amortized Cost, After five years through ten years	9,876	11,679
Held to Maturity, Amortized Cost, After ten years	11,198	13,997
Held to Maturity, Amortized Cost, Total	86,471	116,437
Available for Sale Securities, Amortized Cost, Within one year	11,955	2,378
Available for Sale, Amortized Cost, After one but within five years	127,221	43,866
Available for Sale, Amortized Cost, After five years through ten years	51,686	9,644
Available for Sale, Amortized Cost, After ten years	140,162	143,157
Available for Sale, Amortized Cost, Total	331,024	199,045
Held to Maturity, Fair Value, Within one year	34,459	39,913
Held to Maturity, Fair Value, After one but within five years	31,821	51,953
Held to Maturity, Fair Value, After five years through ten years	10,352	12,426
Held to Maturity, Fair Value, After ten years	11,472	14,351
Held to maturity, Fair Value	88,104	118,643
Available for Sale, Fair Value, Within one year	12,019	2,388
Available for Sale, Fair Value, After one but within five years	127,607	43,919
Available for Sale, Fair Value, After five years through ten years	51,885	9,749
Available for Sale, Fair Value, After ten years	142,345	144,792
Available for Sale, Fair Value, Total	$ 333,856	$ 200,848

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Investment Securities - Securities Sold and Pledged as Collateral (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Available-for-sale:
Sales proceeds	$ 0	$ 413	$ 1,559	$ 2,435
Gross realized gains	0	4	8	4
Gross realized (losses)	0	0	0	(15)
Held-to-maturity:
Sales proceeds	1,015	0	1,015	2,146
Gross realized gains	72	0	72	104
Gross realized (losses)	0	$ 0	0	$ 0
State of California
Held-to-maturity:
Available-for-sale securities pledged as collateral	66,000		66,000		$ 74,700
Public Deposits
Held-to-maturity:
Available-for-sale securities pledged as collateral	65,200		65,200		73,800
Trust Deposits
Held-to-maturity:
Available-for-sale securities pledged as collateral	844		844		856
Internal checking account
Held-to-maturity:
Available-for-sale securities pledged as collateral	$ 1,100		$ 1,100		$ 1,100

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Recently Issued Accounting Standards

9 Months Ended

Sep. 30, 2015

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recently Issued Accounting Standards

Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers (Topic 606). The ASU is a converged standard involving FASB and International Financial Reporting Standards that provides a single comprehensive revenue recognition model for all contracts with customers across transactions and industries. The core principal of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount and at a time that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606) Deferral of the Effective Date which institutes a one-year deferral of the effective date of this amendment to annual reporting periods beginning after December 15, 2017. We are currently evaluating the provisions of this ASU and will be monitoring developments and additional guidance to determine the potential impact the new standard will have on our financial condition and results of operations.

In June 2014, the FASB issued ASU No. 2014-12, Compensation - Stock Compensation (Topic 718) Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period. This ASU provides guidance for entities that grant their employees share-based payment awards where a performance target that affects vesting could be achieved after the requisite service period. That is the case when an employee is eligible to retire or otherwise terminate employment before the end of the period in which a performance target could be achieved and still be eligible to vest in the award if and when the performance target is achieved. This ASU stipulates that compensation expense should be recognized in the period where the performance target becomes probable of being achieved as opposed to the date that the award was granted. ASU 2014-12 is effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. We do not expect this ASU to have a material impact on our financial condition or results of operations.

In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. The amendments in this ASU provide guidance about a customer's accounting for fees paid in a cloud computing arrangement. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, then the customer should account for the arrangement as a service contract. The two criteria that must be met to be considered a software license are: 1) the customer has the contractual right to take possession of the software at any time during the hosting period without significant penalty; and 2) it is feasible for the customer to either run the software on its own hardware or contract with another party unrelated to the vendor to host the software. ASU 2015-05 is effective for annual periods, including interim periods within those annual periods beginning after December 15, 2015. We do not expect this ASU to have a material impact on our financial condition or results of operations.

In September 2015, the FASB issued ASU No. 2015-16, Business Combinations (Topic 805) Simplifying the Accounting for Measurement-Period Adjustments. The amendments in this ASU require that an acquirer recognize adjustments to estimated amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. Prior to the amendments, an acquirer was required to retrospectively adjust the provisional amounts recognized at the acquisition date with a corresponding adjustment to goodwill. ASU 2015-16 is effective for public business entities for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. We do not expect this ASU to have a material impact on our financial condition or results of operations.

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Investment Securities - Investment Securities in Unrealized Loss Positions (Details) $ in Thousands	Sep. 30, 2015 USD ($) security	Dec. 31, 2014 USD ($) security
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Number of investment securities other-than-temporarily impaired | security	0
Number of investment securities in unrealized loss position | security	29	28
Held-to-maturity, less than 12 continuous months, Fair value	$ 10,635	$ 8,839
Held-to-maturity, less than 12 continuous months, Unrealized loss	(15)	(28)
Held-to-maturity, greater than 12 continuous months, Fair value	0	3,892
Held-to-maturity, greater than 12 continuous months, Unrealized loss	0	(37)
Held-to-maturity, Total Securities in a loss position, Fair value	10,635	12,731
Held-to-maturity, Gross Unrealized Losses	(15)	(65)
Available-for-sale, less than 12 continuous months, Fair value	34,077	27,387
Available-for-sale, less than 12 continuous months, Unrealized loss	(82)	(91)
Available-for-sale, greater than 12 continuous months, Fair value	16,427	18,277
Available-for-sale, greater than 12 continuous months, Unrealized loss	(104)	(340)
Available-for-sale, Total Securities in a loss position, Fair Value	50,504	45,664
Available-for-sale, Total Securities in a loss position, Unrealized loss	(186)	(431)
Marketable securities, less than 12 continuous months, Fair value	44,712	36,226
Marketable securities, less than 12 continuous months, Unrealized loss	(97)	(119)
Marketable securities, greater than 12 continuous months, Fair value	16,427	22,169
Marketable securities, greater than 12 continuous months, Unrealized loss	(104)	(377)
Marketable securities, Total Securities in a loss position, Fair value	61,139	58,395
Marketable securities, Total Securities in a loss position, Unrealized loss	$ (201)	(496)
Number of investment securities in unrealized loss position longer than 12 months | security	6
Number of investment securities in unrealized loss position less than 12 months | security	23
Mortgage-backed Securities, Issued by FHLMC and FNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, less than 12 continuous months, Fair value	$ 21,640	1,960
Available-for-sale, less than 12 continuous months, Unrealized loss	(38)	(11)
Available-for-sale, greater than 12 continuous months, Fair value	0	0
Available-for-sale, greater than 12 continuous months, Unrealized loss	0	0
Available-for-sale, Total Securities in a loss position, Fair Value	21,640	1,960
Available-for-sale, Total Securities in a loss position, Unrealized loss	(38)	(11)
CMOs issued by FNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, less than 12 continuous months, Fair value	0	0
Available-for-sale, less than 12 continuous months, Unrealized loss	0	0
Available-for-sale, greater than 12 continuous months, Fair value	3,428	4,115
Available-for-sale, greater than 12 continuous months, Unrealized loss	(34)	(58)
Available-for-sale, Total Securities in a loss position, Fair Value	3,428	4,115
Available-for-sale, Total Securities in a loss position, Unrealized loss	(34)	(58)
CMOs issued by FHLMC
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, less than 12 continuous months, Fair value	0	17,157
Available-for-sale, less than 12 continuous months, Unrealized loss	0	(44)
Available-for-sale, greater than 12 continuous months, Fair value	2,089	2,291
Available-for-sale, greater than 12 continuous months, Unrealized loss	(15)	(43)
Available-for-sale, Total Securities in a loss position, Fair Value	2,089	19,448
Available-for-sale, Total Securities in a loss position, Unrealized loss	(15)	(87)
CMOs issued by GNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, less than 12 continuous months, Fair value	2,570	3,262
Available-for-sale, less than 12 continuous months, Unrealized loss	(5)	(16)
Available-for-sale, greater than 12 continuous months, Fair value	0	0
Available-for-sale, greater than 12 continuous months, Unrealized loss	0	0
Available-for-sale, Total Securities in a loss position, Fair Value	2,570	3,262
Available-for-sale, Total Securities in a loss position, Unrealized loss	(5)	(16)
Debentures of government-sponsored agencies
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, less than 12 continuous months, Fair value	0	494
Available-for-sale, less than 12 continuous months, Unrealized loss	0	(1)
Available-for-sale, greater than 12 continuous months, Fair value	9,949	9,769
Available-for-sale, greater than 12 continuous months, Unrealized loss	(51)	(231)
Available-for-sale, Total Securities in a loss position, Fair Value	9,949	10,263
Available-for-sale, Total Securities in a loss position, Unrealized loss	(51)	(232)
Privately-issued CMOs
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, less than 12 continuous months, Fair value	0	817
Available-for-sale, less than 12 continuous months, Unrealized loss	0	(15)
Available-for-sale, greater than 12 continuous months, Fair value	379	0
Available-for-sale, greater than 12 continuous months, Unrealized loss	(2)	0
Available-for-sale, Total Securities in a loss position, Fair Value	379	817
Available-for-sale, Total Securities in a loss position, Unrealized loss	(2)	(15)
Obligations of state and political subdivisions
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Available-for-sale, less than 12 continuous months, Fair value	9,867
Available-for-sale, less than 12 continuous months, Unrealized loss	(39)
Available-for-sale, greater than 12 continuous months, Fair value	582
Available-for-sale, greater than 12 continuous months, Unrealized loss	(2)
Available-for-sale, Total Securities in a loss position, Fair Value	10,449
Available-for-sale, Total Securities in a loss position, Unrealized loss	(41)
Obligations of state and political subdivisions
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held-to-maturity, less than 12 continuous months, Fair value	2,751	5,830
Held-to-maturity, less than 12 continuous months, Unrealized loss	(5)	(27)
Held-to-maturity, greater than 12 continuous months, Fair value	0	359
Held-to-maturity, greater than 12 continuous months, Unrealized loss	0	(13)
Held-to-maturity, Total Securities in a loss position, Fair value	2,751	6,189
Held-to-maturity, Gross Unrealized Losses	(5)	(40)
Available-for-sale, less than 12 continuous months, Fair value		2,695
Available-for-sale, less than 12 continuous months, Unrealized loss		(3)
Available-for-sale, greater than 12 continuous months, Fair value		1,112
Available-for-sale, greater than 12 continuous months, Unrealized loss		(5)
Available-for-sale, Total Securities in a loss position, Fair Value		3,807
Available-for-sale, Total Securities in a loss position, Unrealized loss		(8)
Corporate bonds
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held-to-maturity, less than 12 continuous months, Fair value	5,540	3,009
Held-to-maturity, less than 12 continuous months, Unrealized loss	(3)	(1)
Held-to-maturity, greater than 12 continuous months, Fair value	0	3,533
Held-to-maturity, greater than 12 continuous months, Unrealized loss	0	(24)
Held-to-maturity, Total Securities in a loss position, Fair value	5,540	6,542
Held-to-maturity, Gross Unrealized Losses	(3)	(25)
Available-for-sale, less than 12 continuous months, Fair value		1,002
Available-for-sale, less than 12 continuous months, Unrealized loss		(1)
Available-for-sale, greater than 12 continuous months, Fair value		990
Available-for-sale, greater than 12 continuous months, Unrealized loss		(3)
Available-for-sale, Total Securities in a loss position, Fair Value		1,992
Available-for-sale, Total Securities in a loss position, Unrealized loss		(4)
MBS pass-through securities issued by FHLMC and FNMA
Schedule of Available-for-sale Securities and Held-to-maturity Securities [Line Items]
Held-to-maturity, less than 12 continuous months, Fair value	2,344
Held-to-maturity, less than 12 continuous months, Unrealized loss	(7)
Held-to-maturity, greater than 12 continuous months, Fair value	0
Held-to-maturity, greater than 12 continuous months, Unrealized loss	0
Held-to-maturity, Total Securities in a loss position, Fair value	2,344
Held-to-maturity, Gross Unrealized Losses	$ (7)	$ 0

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Loans and Allowance for Loan Losses - Purchased Credit-Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
PCI Loans, Carrying Value [Abstract]
Unpaid principal balance	$ 4,965		$ 4,965		$ 7,678
Carrying value	3,674		3,674		5,192
Accretable Yield [Roll Forward]
Balance at beginning of period	3,711	$ 4,514	4,027	$ 3,649
Removals	(837)	0	(914)	(273)
Accretion	(128)	(126)	(367)	(494)
Reclassifications from nonaccretable difference	0	(242)	0	1,264
Balance at end of period	2,746	$ 4,146	2,746	$ 4,146
Commercial loans | Commercial and industrial
PCI Loans, Carrying Value [Abstract]
Unpaid principal balance	258		258		479
Carrying value	184		184		324
Commercial real estate loans
PCI Loans, Carrying Value [Abstract]
Unpaid principal balance	4,355		4,355		6,831
Carrying value	3,420		3,420		4,790
Commercial real estate loans | Construction
PCI Loans, Carrying Value [Abstract]
Unpaid principal balance	125		125		136
Carrying value	2		2		11
Residential loans | Home equity
PCI Loans, Carrying Value [Abstract]
Unpaid principal balance	227		227		232
Carrying value	$ 68		$ 68		$ 67

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CONSOLIDATED STATEMENTS OF CONDITION - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Assets
Cash and due from banks	$ 35,315	$ 41,367
Investment securities
Held-to-maturity, at amortized cost	86,471	116,437
Available-for-sale, at fair value (amortized cost $331,024 and $199,045 at September 30, 2015 and December 31, 2014, respectively)	333,856	200,848
Total investment securities	420,327	317,285
Loans, net of allowance for loan losses of $14,457 and $15,099 at September 30, 2015 and December 31, 2014, respectively	1,348,743	1,348,252
Bank premises and equipment, net	9,537	9,859
Goodwill	6,436	6,436
Core deposit intangible	3,268	3,732
Interest receivable and other assets	59,168	60,199
Total assets	1,882,794	1,787,130
Deposits
Non-interest-bearing	752,336	670,890
Interest-bearing
Transaction accounts	95,522	93,758
Savings accounts	136,021	133,714
Money market accounts	495,642	503,543
Time accounts	155,961	149,714
Total deposits	1,635,482	1,551,619
Federal Home Loan Bank (FHLB) borrowings	15,000	15,000
Subordinated debentures	5,343	5,185
Interest payable and other liabilities	15,015	15,300
Total liabilities	1,670,840	1,587,104
Stockholders' Equity
Preferred stock, no par value Authorized - 5,000,000 shares, none issued	0	0
Common stock, no par value Authorized - 15,000,000 shares; Issued and outstanding - 6,060,744 and 5,939,482 at September 30, 2015 and December 31, 2014, respectively	84,272	82,436
Retained earnings	126,082	116,502
Accumulated other comprehensive income, net	1,600	1,088
Total stockholders' equity	211,954	200,026
Total liabilities and stockholders' equity	$ 1,882,794	$ 1,787,130

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Commitments and Contingencies (Details) $ in Thousands	Jan. 14, 2015 request	Sep. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Operating Leases
2015		$ 941
2016		3,763
2017		3,755
2018		3,784
2019		3,526
Thereafter		6,678
Total		22,447
Minimum payments due on minimum sublease rentals under non-cancelable subleases		271
Visa Inc.
Litigation Matters
Balance of escrow account for legal settlements		1,100,000
Number of requests by merchants rejoining class settlement | request	1,179
Loan commitments and standby letters of credit, unused
Loss Contingencies [Line Items]
Loan commitments and standby letters of credit, off-balance sheet		375,500
Loan commitments and standby letters of credit, unused | Interest payable and other liabilities
Loss Contingencies [Line Items]
Allowance for off balance sheet commitments		1,000	$ 1,000
Commercial lines of credit
Loss Contingencies [Line Items]
Loan commitments and standby letters of credit, off-balance sheet		195,600
Revolving home equity lines
Loss Contingencies [Line Items]
Loan commitments and standby letters of credit, off-balance sheet		125,100
Undisbursed construction loans
Loss Contingencies [Line Items]
Loan commitments and standby letters of credit, off-balance sheet		38,900
Standby letters of credit
Loss Contingencies [Line Items]
Loan commitments and standby letters of credit, off-balance sheet		4,300
Personal and other lines of credit
Loss Contingencies [Line Items]
Loan commitments and standby letters of credit, off-balance sheet		$ 11,600

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Cash Flows from Operating Activities:
Net income	$ 4,773	$ 5,378	$ 13,516	$ 15,079	$ 19,771
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	0	0	0	750
Provision for (reversal of) losses on off-balance sheet commitments	324	13	14	(2)
Compensation expense - common stock for director fees			207	170
Stock-based compensation expense			477	336
Excess tax benefits from exercised stock options			(150)	(104)
Amortization of core deposit intangible			464	578
Amortization of investment security premiums, net of accretion of discounts			2,038	1,982
Accretion of discount on acquired loans			(1,569)	(3,311)
Accretion of discount on subordinated debentures			158	162
Net amortization of deferred loan origination costs/fees			(374)	(382)
Write-down of other real estate owned			40	0
Gain on sale of investment securities			(80)	(93)
Depreciation and amortization	441	383	1,512	1,202
Loss on disposal of premises and equipment			4	0
Earnings on bank-owned life insurance policies	(204)	(208)	(610)	(632)
Net change in operating assets and liabilities:
Interest receivable			303	122
Interest payable			(13)	(44)
Deferred rent and other rent-related expenses			42	165
Other assets			1,930	(44)
Other liabilities			(819)	(1,847)
Total adjustments			3,574	(992)
Net cash provided by operating activities			17,090	14,087
Cash Flows from Investing Activities:
Purchase of held-to-maturity securities			(2,375)	0
Purchase of available-for-sale securities			(189,755)	(16,353)
Proceeds from sale of available-for-sale securities	0	413	1,559	2,435
Proceeds from sale of held-to-maturity securities	1,015	0	1,015	2,146
Proceeds from paydowns/maturity of held-to-maturity securities			30,529	14,738
Proceeds from paydowns/maturity of available-for-sale securities			54,966	33,320
Proceeds from the sale of loan			1,502	0
Loans originated and principal collected, net			403	(88,028)
Purchase of FHLB stock			(136)	(492)
Purchase of premises and equipment			(1,194)	(1,369)
Cash paid for low income housing tax credit investment			(645)	(208)
Net cash used in investing activities			(104,131)	(53,811)
Cash Flows from Financing Activities:
Net increase (decrease) in deposits			83,863	(15,478)
Proceeds from stock options exercised			888	1,146
Proceeds from stock issued under employee and director stock purchase plans			24	31
Cash dividends paid on common stock			(3,936)	(3,428)
Excess tax benefits from exercised stock options			150	104
Net cash provided by (used in) financing activities			80,989	(17,625)
Net decrease in cash and cash equivalents			(6,052)	(57,349)
Cash and cash equivalents at beginning of period			41,367	103,773	103,773
Cash and cash equivalents at end of period	$ 35,315	$ 46,424	35,315	46,424	$ 41,367
Supplemental disclosure of cash flow information:
Cash paid for interest			1,554	1,660
Cash paid for income taxes			6,603	6,940
Supplemental disclosure of non-cash investing and financing activities:
Change in unrealized gain on available-for-sale securities			(1,029)	(2,066)
Securities transferred from available-for-sale to held-to-maturity			0	14,297
Transfer of loan to loans held-for-sale at fair value			1,502	0
Subscription in low income housing tax credit investment			1,023	1,000
Stock issued in payment of director fees			$ 275	$ 236

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Loans and Allowance for Loan Losses - Credit Quality of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 1,363,200	$ 1,363,351
Purchase credit-impaired
Financing Receivable, Recorded Investment [Line Items]
Purchase credit-impaired	3,674	5,192
Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,304,586	1,293,968
Pass | Purchase credit-impaired
Financing Receivable, Recorded Investment [Line Items]
Purchase credit-impaired	3,249	2,210
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	34,590	33,146
Special Mention | Purchase credit-impaired
Financing Receivable, Recorded Investment [Line Items]
Purchase credit-impaired	0	1,140
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	24,024	36,237
Substandard | Purchase credit-impaired
Financing Receivable, Recorded Investment [Line Items]
Purchase credit-impaired	425	1,842
Commercial loans | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	189,783	209,899
Total loans	189,967	210,223
Commercial loans | Commercial and industrial | Purchase credit-impaired
Financing Receivable, Recorded Investment [Line Items]
Purchase credit-impaired	184	324
Commercial loans | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	166,622	197,659
Commercial loans | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	18,288	6,776
Commercial loans | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	4,873	5,464
Commercial real estate loans | Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	237,646	227,989
Total loans	239,335	230,605
Commercial real estate loans | Commercial real estate, owner-occupied | Purchase credit-impaired
Financing Receivable, Recorded Investment [Line Items]
Purchase credit-impaired	1,689	2,616
Commercial real estate loans | Commercial real estate, owner-occupied | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	216,017	205,820
Commercial real estate loans | Commercial real estate, owner-occupied | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	12,445	10,406
Commercial real estate loans | Commercial real estate, owner-occupied | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	9,184	11,763
Commercial real estate loans | Commercial real estate, investor
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	669,947	671,325
Total loans	671,677	673,499
Commercial real estate loans | Commercial real estate, investor | Purchase credit-impaired
Financing Receivable, Recorded Investment [Line Items]
Purchase credit-impaired	1,731	2,174
Commercial real estate loans | Commercial real estate, investor | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	662,858	651,548
Commercial real estate loans | Commercial real estate, investor | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	2,438	13,304
Commercial real estate loans | Commercial real estate, investor | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	4,651	6,473
Commercial real estate loans | Construction
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	54,918	48,402
Total loans	54,921	48,413
Commercial real estate loans | Construction | Purchase credit-impaired
Financing Receivable, Recorded Investment [Line Items]
Purchase credit-impaired	2	11
Commercial real estate loans | Construction | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	51,680	41,710
Commercial real estate loans | Construction | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	0	1,008
Commercial real estate loans | Construction | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	3,238	5,684
Residential loans | Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	113,663	110,721
Total loans	113,731	110,788
Residential loans | Home equity | Purchase credit-impaired
Financing Receivable, Recorded Investment [Line Items]
Purchase credit-impaired	68	67
Residential loans | Home equity | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	111,020	107,933
Residential loans | Home equity | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	1,419	322
Residential loans | Home equity | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans excluding purchased credit-impaired loans	1,224	2,466
Residential loans | Other residential
Financing Receivable, Recorded Investment [Line Items]
Total loans	71,682	73,035
Residential loans | Other residential | Purchase credit-impaired
Financing Receivable, Recorded Investment [Line Items]
Purchase credit-impaired	0	0
Residential loans | Other residential | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	71,596	70,987
Residential loans | Other residential | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Residential loans | Other residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	86	2,048
Consumer loans | Installment and other consumer
Financing Receivable, Recorded Investment [Line Items]
Total loans	21,887	16,788
Consumer loans | Installment and other consumer | Purchase credit-impaired
Financing Receivable, Recorded Investment [Line Items]
Purchase credit-impaired	0	0
Consumer loans | Installment and other consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Total loans	21,544	16,101
Consumer loans | Installment and other consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	190
Consumer loans | Installment and other consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 343	$ 497

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Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

Dividends Declared

Presented below is a summary of cash dividends paid to common shareholders, recorded as a reduction of retained earnings.

	Three months ended				Nine months ended
(in thousands, except per share data)	September 30, 2015		September 30, 2014		September 30, 2015		September 30, 2014
Cash dividends to common stockholders	$	1,316	$	1,185	$	3,936	$	3,428
Cash dividends per common share	$	0.22	$	0.20	$	0.66	$	0.58

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Loans and Allowance for Loan Losses - Troubled Debt Restructuring by Class (Details)	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2015 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) loans	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans removed from TDR designation | loans				4
Loans removed from TDR designation, recorded investment				$ 1,400,000		$ 0
Recorded investment in Troubled Debt Restructurings		$ 18,912,000		18,912,000		22,703,000
TDR loans accruing interest as of period end		18,800,000		18,800,000		15,900,000
TDR loans acquired		147,000		147,000		1,800,000
Charge-off to allowance for loan losses		3,000	$ 2,000	856,000	$ 276,000
Commercial loans | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings		4,098,000		4,098,000		3,584,000
Charge-off to allowance for loan losses		2,000	0	5,000	66,000
Commercial real estate loans | Commercial real estate, owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings		6,993,000		6,993,000		8,459,000
Charge-off to allowance for loan losses		0	0	0	0
Commercial real estate loans | Commercial real estate, investor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings		733,000		733,000		524,000
Charge-off to allowance for loan losses		0	0	0	0
Commercial real estate loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings		3,238,000		3,238,000		5,684,000
Loan value transferred to held-for-sale	$ 1,500,000
Charge-off to allowance for loan losses	$ 839,000	0	0	839,000	204,000
Residential loans | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings		463,000		463,000		694,000
Charge-off to allowance for loan losses		0	0	0	0
Residential loans | Other residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings		2,020,000		2,020,000		2,045,000
Charge-off to allowance for loan losses		0	0	0	0
Consumer loans | Installment and other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment in Troubled Debt Restructurings		1,367,000		1,367,000		$ 1,713,000
Charge-off to allowance for loan losses		$ 1,000	$ 2,000	$ 12,000	$ 6,000

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Derivative Financial Instruments and Hedging Activities (Tables)

9 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

Information on our derivatives follows:

	Asset derivatives				Liability derivatives
(in thousands)	September 30, 2015		December 31, 2014		September 30, 2015		December 31, 2014
Fair value hedges:
Interest rate contracts notional amount	$	—	$	4,589	$	29,999	$	26,899
Interest rate contracts fair value1	$	—	$	61	$	2,328	$	1,996

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance

	Three months ended
(in thousands)	September 30, 2015			September 30, 2014
(Decrease) increase in value of designated interest rate swaps recognized in interest income	$	(813	)	$	21
Payment on interest rate swaps recorded in interest income	(231		)	(251		)
Increase (decrease) in value of hedged loans recognized in interest income	905			(54		)
Decrease in value of yield maintenance agreement recognized against interest income	(13		)	(15		)
Net loss on derivatives recognized against interest income 2	$	(152	)	$	(299	)

	Nine months ended
(in thousands)	September 30, 2015			September 30, 2014
(Decrease) increase in value of designated interest rate swaps recognized in interest income	$	(393	)	$	334
Payment on interest rate swaps recorded in interest income	(700		)	(755		)
Increase (decrease) in value of hedged loans recognized in interest income	453			(133		)
Decrease in value of yield maintenance agreement recognized against interest income	(39		)	(77		)
Net loss on derivatives recognized against interest income 2	$	(679	)	$	(631	)

¹ See Note 3 for valuation methodology.

² Includes hedge ineffectiveness gain of $79 thousand and loss of $48 thousand for the quarters ended September 30, 2015 and September 30, 2014, respectively. Ineffectiveness gain of $21 thousand and $125 thousand was recorded in interest income during the nine months ended September 30, 2015 and September 30, 2014, respectively. Changes in value of swaps were included in the assessment of hedge effectiveness. Hedge ineffectiveness is the measure of the extent to which the change in the fair value of the hedging instruments does not offset the change in the fair value of the hedged items.

Offsetting Assets

Information on financial instruments that are eligible for offset in the consolidated statements of condition follows:

Offsetting of Financial Assets and Derivative Assets
(in thousands)							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts
	Gross Amounts		Offset in the		of Assets Presented
	of Recognized		Statements of		in the Statements		Financial			Cash Collateral
	Assets1		Condition		of Condition1		Instruments			Received		Net Amount
As of September 30, 2015
Derivatives by Counterparty
Counterparty A	$	—	$	—	$	—	$	—		$	—	$	—
Counterparty B	—		—		—		—			—		—
Total	$	—	$	—	$	—	$	—		$	—	$	—
As of December 31, 2014
Derivatives by Counterparty
Counterparty A	$	61	$	—	$	61	$	(61	)	$	—	$	—
Counterparty B	—		—		—		—			—		—
Total	$	61	$	—	$	61	$	(61	)	$	—	$	—

¹ Amounts exclude accrued interest totaling zero and $1 thousand at September 30, 2015 and December 31, 2014, respectively.

Offsetting Liabilities

Offsetting of Financial Liabilities and Derivative Liabilities
(in thousands)							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts of
	Gross Amounts		Offset in the		Liabilities Presented
	of Recognized		Statements of		in the Statements of		Financial			Cash Collateral
	Liabilities2		Condition		Condition2		Instruments			Pledged			Net Amount
As of September 30, 2015
Derivatives by Counterparty
Counterparty A	$	2,001	$	—	$	2,001	$	—		$	(2,001	)	$	—
Counterparty B	327		—		327		—			(327		)	—
Total	$	2,328	$	—	$	2,328	$	—		$	(2,328	)	$	—
As of December 31, 2014
Derivatives by Counterparty
Counterparty A	$	1,616	$	—	$	1,616	$	(61	)	$	(1,360	)	$	195
Counterparty B	380		—		380		—			(380		)	—
Total	$	1,996	$	—	$	1,996	$	(61	)	$	(1,740	)	$	195

² Amounts exclude accrued interest totaling $34 thousand and $40 thousand at September 30, 2015 and December 31, 2014, respectively.

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Basis of Presentation

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

 Basis of Presentation

The consolidated financial statements include the accounts of Bank of Marin Bancorp (“Bancorp”), a bank holding company, and its wholly-owned bank subsidiary, Bank of Marin (the “Bank”), a California state-chartered commercial bank. References to “we,” “our,” “us” mean the holding company and the Bank that are consolidated for financial reporting purposes. The accompanying unaudited consolidated interim financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and note disclosures normally included in annual financial statements prepared in accordance with generally accepted accounting principles ("GAAP") have been condensed or omitted pursuant to those rules and regulations. Although we believe that the disclosures are adequate and the information presented is not misleading, we suggest that these interim financial statements be read in conjunction with the financial statements and the notes thereto included in our 2014 Annual Report on Form 10-K.  In the opinion of Management, the unaudited consolidated financial statements reflect all adjustments which are necessary for a fair presentation of the consolidated financial position, the results of operations, changes in comprehensive income, changes in stockholders’ equity, and cash flows for the periods presented. All material intercompany transactions have been eliminated. The results of these interim periods may not be indicative of the results for the full year or for any other period. We have evaluated subsequent events through the date of filing with the SEC and have determined that there are no subsequent events that require additional recognition or disclosure.

In connection with the acquisition of NorCal Community Bancorp ("NorCal") (the "Acquisition"), Bancorp assumed ownership of Norcal Community Bancorp Trusts I and II (the "Trusts"). Bancorp is not considered the primary beneficiary of the Trusts (variable interest entities), therefore the Trusts are not consolidated in our consolidated financial statements, but rather the subordinated debentures due to the Trusts are shown as liabilities on our consolidated statements of condition (see Note 6). Bancorp's investment in the common stock of the Trusts is accounted for under the equity method and is included in interest receivable and other assets on the consolidated statements of condition.

The following table shows: 1) weighted average basic shares, 2) potentially dilutive weighted average common shares related to stock options, unvested restricted stock awards and stock warrant, and 3) weighted average diluted shares. Basic earnings per share (“EPS”) are calculated by dividing net income by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards. Diluted EPS are calculated using the weighted average number of potentially dilutive common shares, which is based on average market prices during the three months of the reporting period, under the treasury stock method. The number of potentially dilutive common shares included in year-to-date diluted EPS is a year-to-date weighted average of potentially dilutive common shares included in each quarterly diluted EPS computation. We have two forms of outstanding stock: common stock and unvested restricted stock awards. Holders of unvested restricted stock awards receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. Therefore, under the two-class method, the difference in EPS is not significant for these participating securities.

	Three months ended				Nine months ended
(in thousands, except per share data)	September 30, 2015		September 30, 2014		September 30, 2015		September 30, 2014
Weighted average basic shares outstanding	5,963		5,903		5,943		5,887
Add: Potentially dilutive common shares related to          stock options	35		41		41		42
Potentially dilutive common shares related to  unvested restricted stock	5		4		5		4
Potentially dilutive common shares related to  the warrant	64		66		70		63
Weighted average diluted shares outstanding	6,067		6,014		6,059		5,996
Net income	$	4,773	$	5,378	$	13,516	$	15,079
Basic EPS	$	0.80	$	0.91	$	2.27	$	2.56
Diluted EPS	$	0.79	$	0.89	$	2.23	$	2.51
Weighted average anti-dilutive shares not included in the calculation of diluted EPS	42		51		35		48

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CONSOLIDATED STATEMENTS OF CONDITION (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Investment Securities
Available-for-sale, amortized cost	$ 331,024	$ 199,045
Loans, allowance for loan losses	$ 14,457	$ 15,099
Stockholders' Equity
Preferred stock, no par value	$ 0	$ 0
Preferred stock, authorized (in shares)	5,000,000	5,000,000
Preferred stock, issued	0	0
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	15,000,000	15,000,000
Common stock, issued (in shares)	6,060,744	5,939,482
Common stock, outstanding (in shares)	6,060,744	5,939,482

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Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Earnings Per Share Reconciliation

The following table shows: 1) weighted average basic shares, 2) potentially dilutive weighted average common shares related to stock options, unvested restricted stock awards and stock warrant, and 3) weighted average diluted shares. Basic earnings per share (“EPS”) are calculated by dividing net income by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards. Diluted EPS are calculated using the weighted average number of potentially dilutive common shares, which is based on average market prices during the three months of the reporting period, under the treasury stock method. The number of potentially dilutive common shares included in year-to-date diluted EPS is a year-to-date weighted average of potentially dilutive common shares included in each quarterly diluted EPS computation. We have two forms of outstanding stock: common stock and unvested restricted stock awards. Holders of unvested restricted stock awards receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. Therefore, under the two-class method, the difference in EPS is not significant for these participating securities.

	Three months ended				Nine months ended
(in thousands, except per share data)	September 30, 2015		September 30, 2014		September 30, 2015		September 30, 2014
Weighted average basic shares outstanding	5,963		5,903		5,943		5,887
Add: Potentially dilutive common shares related to          stock options	35		41		41		42
Potentially dilutive common shares related to  unvested restricted stock	5		4		5		4
Potentially dilutive common shares related to  the warrant	64		66		70		63
Weighted average diluted shares outstanding	6,067		6,014		6,059		5,996
Net income	$	4,773	$	5,378	$	13,516	$	15,079
Basic EPS	$	0.80	$	0.91	$	2.27	$	2.56
Diluted EPS	$	0.79	$	0.89	$	2.23	$	2.51
Weighted average anti-dilutive shares not included in the calculation of diluted EPS	42		51		35		48

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Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Oct. 31, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	Bank of Marin Bancorp
Entity Central Index Key	0001403475
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		6,062,407

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Fair Value of Assets and Liabilities (Tables)

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table summarizes our assets and liabilities that were required to be recorded at fair value on a recurring basis.

(in thousands)   Description of Financial Instruments	Carrying Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
At September 30, 2015:
Securities available-for-sale:
Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies	$	171,417	$	—	$	169,677	$	1,740
Debentures of government-sponsored agencies	$	102,165	$	—	$	102,165	$	—
Privately-issued collateralized mortgage obligations	$	4,891	$	—	$	4,891	$	—
Obligations of state and political subdivisions	$	50,377	$	—	$	50,377	$	—
Corporate bonds	$	5,006	$	—	5,006		$	—
Derivative financial liabilities (interest rate contracts)	$	2,328	$	—	$	2,328	$	—
At December 31, 2014:
Securities available-for-sale:
Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies	$	158,119	$	—	$	155,421	$	2,698
Debentures of government-sponsored agencies	$	14,557	$	—	$	14,557	$	—
Privately-issued collateralized mortgage obligations	$	7,294	$	—	$	7,294	$	—
Obligations of state and political subdivisions	$	15,880	$	—	$	15,771	$	—
Corporate bonds	$	4,998	$	—	$	5,437	$	—
Derivative financial assets (interest rate contracts)	$	61	$	—	$	61	$	—
Derivative financial liabilities (interest rate contracts)	$	1,996	$	—	$	1,996	$	—

Fair Value Measurements, Nonrecurring

The following table presents the carrying value of assets and liabilities measured at fair value on a non-recurring basis and that were held in the consolidated statements of condition at each respective period end, by level within the fair value hierarchy as of September 30, 2015 and December 31, 2014. Impaired loans are only included in the following table when they are collateral dependent and the recorded investments of these loans are at the net realizable value of the collateral based on an impairment analysis.

(in thousands)	Carrying Value1		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs  (Level 3)
At September 30, 2015:
Other real estate	$	421	$	—	$	—	$	421
At December 31, 2014:
Impaired loans:
Installment and other consumer 1	$	77	$	—	$	—	$	77
Other real estate	$	461	$	—	$	—	$	461

¹ Represents collateral-dependent loan principal balances that had been generally written down to the values of the underlying collateral, net of specific valuation allowances. At December 31, 2014, the $77 thousand carrying value of a consumer loan was net of a $26 thousand specific valuation allowance. The carrying value of loans fully charged-off, which includes unsecured lines of credit, overdrafts and all other loans, is zero.

Fair Value, by Balance Sheet Grouping

The table below is a summary of fair value estimates for financial instruments as of September 30, 2015 and December 31, 2014, excluding financial instruments recorded at fair value on a recurring basis (summarized in the first table in this note). The carrying amounts in the following table are recorded in the consolidated statements of condition under the indicated captions. We have excluded non-financial assets and non-financial liabilities defined by the Codification (ASC 820-10-15-1A), such as Bank premises and equipment, deferred taxes and other liabilities.  In addition, we have not disclosed the fair value of financial instruments specifically excluded from disclosure requirements of the Financial Instruments Topic of the Codification (ASC 825-10-50-8), such as Bank-owned life insurance policies.

	September 30, 2015					December 31, 2014
(in thousands)	Carrying Amounts		Fair Value		Fair Value Hierarchy	Carrying Amounts		Fair Value		Fair Value Hierarchy
Financial assets
Cash and cash equivalents	$	35,315	$	35,315	Level 1	$	41,367	$	41,367	Level 1
Investment securities held-to-maturity	86,471		88,104		Level 2	116,437		118,643		Level 2
Loans, net	1,348,743		1,364,940		Level 3	1,348,252		1,361,244		Level 3
Interest receivable	5,606		5,606		Level 2	5,909		5,909		Level 2
Financial liabilities
Deposits	1,635,482		1,636,088		Level 2	1,551,619		1,552,446		Level 2
Federal Home Loan Bank borrowings	15,000		15,437		Level 2	15,000		15,484		Level 2
Subordinated debentures	5,343		5,178		Level 3	5,185		5,290		Level 3
Interest payable	200		200		Level 2	213		213		Level 2

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest income
Interest and fees on loans	$ 15,498	$ 16,195	$ 46,164	$ 48,877
Interest on investment securities
Securities of U.S. government agencies	1,223	1,126	3,248	3,551
Obligations of state and political subdivisions	527	496	1,578	1,737
Corporate debt securities and other	162	254	546	778
Interest on Federal funds sold and due from banks	35	37	107	125
Total interest income	17,445	18,108	51,643	55,068
Interest expense
Interest on interest-bearing transaction accounts	28	25	88	74
Interest on savings accounts	12	12	37	34
Interest on money market accounts	125	126	375	415
Interest on time accounts	212	229	649	695
Interest on FHLB and overnight borrowings	80	79	236	235
Interest on subordinated debentures	105	106	314	316
Total interest expense	562	577	1,699	1,769
Net interest income	16,883	17,531	49,944	53,299
Provision for loan losses	0	0	0	750
Net interest income after provision for loan losses	16,883	17,531	49,944	52,549
Non-interest income
Service charges on deposit accounts	489	552	1,518	1,636
Wealth Management and Trust Services	568	567	1,809	1,744
Debit card interchange fees	372	375	1,087	1,035
Merchant interchange fees	171	224	430	629
Earnings on bank-owned life insurance	204	208	610	632
Dividends on FHLB stock	209	149	817	409
Gain on sale of securities	72	4	80	93
Other income	213	222	744	707
Total non-interest income	2,298	2,301	7,095	6,885
Non-interest expense
Salaries and related benefits	6,300	6,108	19,762	19,270
Occupancy and equipment	1,346	1,381	4,181	4,044
Depreciation and amortization	441	383	1,512	1,202
Federal Deposit Insurance Corporation insurance	250	261	739	780
Data processing	835	748	2,413	2,856
Professional services	493	537	1,572	1,577
Directors' expense	182	153	620	466
Information technology	186	180	554	517
Reversal of losses on off-balance sheet commitments	324	13	14	(2)
Other expense	1,281	1,586	4,447	4,940
Total non-interest expense	11,638	11,350	35,814	35,650
Income before provision for income taxes	7,543	8,482	21,225	23,784
Provision for income taxes	2,770	3,104	7,709	8,705
Net income	$ 4,773	$ 5,378	$ 13,516	$ 15,079
Net income per common share:
Basic (usd per share)	$ 0.80	$ 0.91	$ 2.27	$ 2.56
Diluted (usd per share)	$ 0.79	$ 0.89	$ 2.23	$ 2.51
Weighted average shares used to compute net income per common share:
Basic (shares)	5,963	5,903	5,943	5,887
Diluted (shares)	6,067	6,014	6,059	5,996
Dividends declared per common share (usd per share)	$ 0.22	$ 0.20	$ 0.66	$ 0.58
Comprehensive income:
Net income	$ 4,773	$ 5,378	$ 13,516	$ 15,079
Other comprehensive income
Change in net unrealized gain (loss) on available-for-sale securities	1,523	(344)	1,037	2,047
Reclassification adjustment for loss (gain) on available-for-sale securities included in net income	0	4	(8)	19
Net change in unrealized gain (loss) on available-for-sale securities, before tax	1,523	(340)	1,029	2,066
Deferred tax expense (benefit)	654	(141)	517	828
Other comprehensive income (loss), net of tax	869	(199)	512	1,238
Comprehensive income	$ 5,642	$ 5,179	$ 14,028	$ 16,317

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Borrowings

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Borrowings

Borrowings

Federal Funds Purchased – The Bank had unsecured lines of credit totaling $92.0 million with correspondent banks for overnight borrowings at September 30, 2015 and December 31, 2014.  In general, interest rates on these lines approximate the federal funds target rate. At September 30, 2015 and December 31, 2014, we had no overnight borrowings outstanding under these credit facilities.

Federal Home Loan Bank Borrowings – As of September 30, 2015 and December 31, 2014, the Bank had lines of credit with the FHLB totaling $467.6 million and $450.6 million, respectively, based on eligible collateral of certain loans.  At September 30, 2015 and December 31, 2014, we had no FHLB overnight borrowings.

On February 5, 2008, the Bank entered into a ten-year borrowing agreement under the same FHLB line of credit for $15.0 million at a fixed rate of 2.07%, which remained outstanding at September 30, 2015. Interest-only payments are required every three months until the entire principal is due on February 5, 2018. The FHLB has the unconditional right to accelerate the due date on November 5, 2015 and every three months thereafter (the “put dates”). If the FHLB exercises its right to accelerate the due date, the FHLB will offer replacement funding at the current market rate, subject to certain conditions. The Bank must comply with the put date, but are not required to accept replacement funding.

At September 30, 2015, $452.3 million was remaining as available for borrowing from the FHLB, net of the term borrowing and letters of credit acquired from NorCal totaling $241 thousand.

Federal Reserve Line of Credit – The Bank has a line of credit with the FRB secured by certain residential loans.  At September 30, 2015 and December 31, 2014, the Bank had borrowing capacity under this line totaling $35.3 million and $27.7 million, respectively, and had no outstanding borrowings with the FRB.

As part of the Acquisition, Bancorp assumed two subordinated debentures due to NorCal Community Bancorp Trusts I and II (the "Trusts"), established for the sole purpose of issuing trust preferred securities on September 22, 2003 and December 29, 2005, respectively. The subordinated debentures were recorded at fair values totaling $4.95 million at acquisition date with contractual values totaling $8.2 million. The difference between the contractual balance and the fair value at acquisition date is accreted into interest expense over the lives of the debentures. Accretion on the subordinated debentures totaled $158 thousand in the first nine months of 2015 and $162 thousand in the first nine months of 2014. Bancorp has the option to defer payment of the interest on the subordinated debentures for a period of up to five years, as long as there is no default on the subordinated debentures. In the event of interest deferral, dividends to Bancorp common stockholders are prohibited. The trust preferred securities were sold and issued in private transactions pursuant to an exemption from registration under the Securities Act of 1933, as amended. Bancorp has guaranteed, on a subordinated basis, distributions and other payments due on trust preferred securities totaling $8.0 million issued by the Trusts which have identical maturity, repricing and payment terms as the subordinated debentures.

The following is a summary of the contractual terms of the subordinated debentures due to the Trusts as of September 30, 2015:

(in thousands)
Subordinated debentures due to NorCal Community Bancorp Trust I on October 7, 2033 with interest payable quarterly, based on 3-month LIBOR plus 3.05%, repricing quarterly (3.34% as of September 30, 2015), redeemable, in whole or in part, on any interest payment date	$	4,124
Subordinated debentures due to NorCal Community Bancorp Trust II on March 15, 2036 with interest payable quarterly, based on 3-month LIBOR plus 1.40%, repricing quarterly (1.74% as of September 30, 2015), redeemable, in whole or in part, on any interest payment date	4,124
Total	$	8,248

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Loans and Allowance for Loan Losses

9 Months Ended

Sep. 30, 2015

Receivables [Abstract]

Loans and Allowance for Loan Losses

Loans and Allowance for Loan Losses

Credit Quality of Loans

Past due and non-accrual loans by class as of September 30, 2015 and December 31, 2014 were as follows:

(dollars in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential 1		Installment and other consumer		Total
September 30, 2015
30-59 days past due	$	1,780	$	139	$	421	$	—	$	862	$	—	$	7	$	3,209
60-89 days past due	150		—		—		—		99		—		2		251
90 days or more past due	21		—		—		—		100		—		72		193
Total past due	1,951		139		421		—		1,061		—		81		3,653
Current	188,016		239,196		671,256		54,921		112,670		71,682		21,806		1,359,547
Total loans 3	$	189,967	$	239,335	$	671,677	$	54,921	$	113,731	$	71,682	$	21,887	$	1,363,200
Non-accrual 2	354		—		2,020		2		172		—		90		2,638
December 31, 2014
30-59 days past due	$	183	$	—	$	—	$	—	$	646	$	—	$	180	$	1,009
Non-accrual 2	—		1,403		2,429		5,134		280		—		104		9,350
Total past due	183		1,403		2,429		5,134		926		—		284		10,359
Current	210,040		229,202		671,070		43,279		109,862		73,035		16,504		1,352,992
Total loans 3	$	210,223	$	230,605	$	673,499	$	48,413	$	110,788	$	73,035	$	16,788	$	1,363,351

¹ Our residential loan portfolio does not include sub-prime loans, nor is it our practice to underwrite loans commonly referred to as "Alt-A mortgages", the characteristics of which are loans lacking full documentation, borrowers having low FICO scores or higher loan-to-value ratios.

² Amounts include $2 thousand of Purchased Credit Impaired ("PCI") loans that had stopped accreting interest at September 30, 2015 and $1.4 millionatDecember 31, 2014. Amounts exclude accreting PCI loans of $3.7 million and $3.8 million at September 30, 2015 and December 31, 2014, respectively, as we have a reasonable expectation about future cash flows to be collected and we continue to recognize accretable yield on these loans in interest income. These accreting PCI loans are included in current loans.

³ Amounts include net deferred loan costs of $861 thousand and $487 thousand at September 30, 2015 and December 31, 2014, respectively. Amounts are also net of unaccreted purchase discounts on non-PCI loans of $3.4 million and $4.4 million at September 30, 2015 and December 31, 2014, respectively.

Our commercial loans are generally made to established small and mid-sized businesses to provide financing for their working capital needs, equipment purchases and/or acquisitions.  Management examines historical, current, and projected cash flows to determine the ability of the borrower to repay obligations as agreed. Commercial loans are made based primarily on the identified cash flows of the borrower and secondarily on the underlying collateral and/or guarantor support. The cash flows of borrowers, however, may not occur as expected, and the collateral securing these loans may fluctuate in value. Most commercial and industrial loans are secured by the assets being financed, such as accounts receivable and/or inventory, and typically include a personal guarantee. We target stable businesses with guarantors that have proven to be resilient in periods of economic stress.  Typically, the guarantors provide an additional source of repayment for most of our credit extensions.

Commercial real estate loans are subject to underwriting standards and processes similar to commercial loans discussed above. We underwrite these loans to be repaid from cash flow and to be supported by real property collateral. Underwriting standards for commercial real estate loans include, but are not limited to, debt coverage and loan-to-value ratios. Furthermore, substantially all of our loans are guaranteed by the owners of the properties.  Commercial real estate loans may be adversely affected by conditions in the real estate markets or in the general economy. In the event of a vacancy, guarantors are expected to carry the loans until a replacement tenant can be found.  The owner's substantial equity investment provides a strong economic incentive to continue to support the commercial real estate projects. As such, we have generally experienced a relatively low level of loss and delinquencies in this portfolio.

Construction loans are generally made to developers and builders to finance construction, renovation and occasionally land acquisitions. These loans are underwritten after evaluation of the borrower's financial strength, reputation, prior track record, and independent appraisals. The construction industry can be impacted by significant events, including: the inherent volatility of real estate markets and vulnerability to delays due to weather, change orders, inability to obtain construction permits, labor or material shortages, and price changes. Estimates of construction costs and value associated with the complete project may be inaccurate. Repayment of construction loans is largely dependent on the ultimate success of the project.

Consumer loans primarily consist of home equity lines of credit, other residential (tenancy-in-common, or “TIC”) loans, and installment and other consumer loans. We originate consumer loans utilizing credit score information, debt-to-income ratio and loan-to-value ratio analysis. Diversification, coupled with relatively small loan amounts that are spread across many individual borrowers, mitigates risk. Additionally, trend reports are reviewed by Management on a regular basis. Our residential loan portfolio includes TIC units almost exclusively in San Francisco. These loans tend to have more equity in their properties than conventional residential mortgages, which mitigates risk. Installment and other consumer loans include mostly loans for floating homes and mobile homes along with a small number of installment loans.

We use a risk rating system to evaluate asset quality, and to identify and monitor credit risk in individual loans, and ultimately in the portfolio. Definitions of loans that are risk graded “Special Mention” or worse are consistent with those used by the Federal Deposit Insurance Corporation ("FDIC").  Our internally assigned grades are as follows:

Pass – Loans to borrowers of acceptable or better credit quality. Borrowers in this category demonstrate fundamentally sound financial positions, repayment capacity, credit history and management expertise.  Loans in this category must have an identifiable and stable source of repayment and meet the Bank’s policy regarding debt service coverage ratios.  These borrowers are capable of sustaining normal economic, market or operational setbacks without significant financial impacts.  Negative external industry factors are generally not present.  The loan may be secured, unsecured or supported by non-real estate collateral for which the value is more difficult to determine and/or marketability is more uncertain. This category also includes “Watch” loans, where the primary source of repayment has been delayed. “Watch” is intended to be a transitional grade, with either an upgrade or downgrade within a reasonable period.

Special Mention - Potential weaknesses that deserve close attention. If left uncorrected, those potential weaknesses may result in deterioration of the payment prospects for the asset. Special Mention assets do not present sufficient risk to warrant adverse classification.

Substandard - Inadequately protected by either the current sound worth and paying capacity of the obligor or the collateral pledged, if any. A Substandard asset has a well-defined weakness or weaknesses that jeopardize(s) the liquidation of the debt. Substandard assets are characterized by the distinct possibility that we will sustain some loss if such weaknesses or deficiencies are not corrected. Well-defined weaknesses include adverse trends or developments of the borrower’s financial condition, managerial weaknesses and/or significant collateral deficiencies.

Doubtful - Critical weaknesses that make collection or liquidation in full improbable. There may be specific pending events that work to strengthen the asset; however, the amount or timing of the loss may not be determinable. Pending events generally occur within one year of the asset being classified as Doubtful. Examples include: merger, acquisition, or liquidation; capital injection; guarantee; perfecting liens on additional collateral; and refinancing. Such loans are placed on nonaccrual status and usually are collateral-dependent.

We regularly review our credits for accuracy of risk grades whenever new information is received. Borrowers are required to submit financial information at regular intervals:

• Generally, commercial borrowers with lines of credit are required to submit financial information with reporting intervals ranging from monthly to annually depending on credit size, risk and complexity.

• Investor commercial real estate borrowers are generally required to submit rent rolls or property income statements at least annually.

• Construction loans are monitored monthly, and reviewed on an ongoing basis.

• Home equity and other consumer loans are reviewed based on delinquency.

• Loans graded “Watch” or more severe, regardless of loan type, are reviewed no less than quarterly.

The following table represents an analysis of loans by internally assigned grades, including the PCI loans, at September 30, 2015 and December 31, 2014:

(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Purchased credit-impaired		Total
Credit Risk Profile by Internally Assigned Grade:
September 30, 2015
Pass	$	166,622	$	216,017	$	662,858	$	51,680	$	111,020	$	71,596	$	21,544	$	3,249	$	1,304,586
Special Mention	18,288		12,445		2,438		—		1,419		—		—		—		34,590
Substandard	4,873		9,184		4,651		3,238		1,224		86		343		425		24,024
Total loans	$	189,783	$	237,646	$	669,947	$	54,918	$	113,663	$	71,682	$	21,887	$	3,674	$	1,363,200
December 31, 2014
Pass	$	197,659	$	205,820	$	651,548	$	41,710	$	107,933	$	70,987	$	16,101	$	2,210	$	1,293,968
Special Mention	6,776		10,406		13,304		1,008		322		—		190		1,140		33,146
Substandard	5,464		11,763		6,473		5,684		2,466		2,048		497		1,842		36,237
Total loans	$	209,899	$	227,989	$	671,325	$	48,402	$	110,721	$	73,035	$	16,788	$	5,192	$	1,363,351

Troubled Debt Restructuring

Our loan portfolio includes certain loans that have been modified in a Troubled Debt Restructuring (“TDR”), where economic concessions have been granted to borrowers experiencing financial difficulties. These concessions typically result from our loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. TDRs on nonaccrual status at the time of restructure may be returned to accruing status after Management considers the borrower’s sustained repayment performance for a reasonable period, generally six months, and obtains reasonable assurance of repayment and performance.

A loan may no longer be reported as a TDR if all of the following conditions are met:

• The loan is subsequently refinanced or restructured at current market interest rates and the new terms are consistent with the treatment of creditworthy borrowers under regular underwriting standards;

• The borrower is no longer considered to be in financial difficulty;

• Performance on the loan is reasonably assured; and;

• Existing loan did not have any forgiveness of principal or interest.

The removal of TDR status must be approved by the same management level that approved the upgrading of the loan classification.

During the first nine months of 2015, four loans with a recorded investment totaling $1.4 million were removed from TDR designation. There were no loans removed from TDR designation during 2014.

The table below summarizes outstanding TDR loans by loan class as of September 30, 2015 and December 31, 2014. The summary includes both TDRs that are on non-accrual status and those that continue to accrue interest.

(in thousands)	As of
Recorded investment in Troubled Debt Restructurings 1	September 30, 2015		December 31, 2014
Commercial and industrial	$	4,098	$	3,584
Commercial real estate, owner-occupied	6,993		8,459
Commercial real estate, investor	733		524
Construction 2	3,238		5,684
Home equity	463		694
Other residential	2,020		2,045
Installment and other consumer	1,367		1,713
Total	$	18,912	$	22,703

¹ Includes $18.8 million and $15.9 million of TDR loans that were accruing interest as of September 30, 2015 and December 31, 2014, respectively. Includes $147 thousand and $1.8 million of acquired loans at September 30, 2015 and December 31, 2014, respectively.

²In June 2015,one TDR loan was transferred to loans held-for-sale at fair value totaling $1.5 million, net of an $839 thousand charge-off to the allowance for loan losses. The loan was subsequently sold in June 2015 for no gain or loss.

The table below presents the following information for loans modified in a TDR during the presented periods: number of contracts modified, the recorded investment in the loans prior to modification, and the recorded investment in the loans after being restructured. The table below excludes fully paid-off and fully charged-off TDR loans.

(dollars in thousands)	Number of Contracts Modified	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment at period end
Troubled Debt Restructurings during the three months ended September 30, 2015:
Commercial and industrial	1	$	700	$	700	$	700
Total	1	$	700	$	700	$	700
Troubled Debt Restructurings during the three months ended September 30, 2014:
Commercial and industrial	2	$	513	$	596	$	596
Commercial real estate, owner occupied	1	4,226		4,216		4,206
Commercial real estate, investor	1	74		74		74
Construction	1	815		814		814
Total	5	$	5,628	$	5,700	$	5,690

Troubled Debt Restructurings during the nine months ended September 30, 2015:
Commercial and industrial	5	$	1,482	$	1,582	$	1,463
Commercial real estate, investor	1	222		221		217
Total	6	$	1,704	$	1,803	$	1,680
Troubled Debt Restructurings during the nine months ended September 30, 2014:
Commercial and industrial 1	7	$	1,336	$	1,460	$	1,431
Commercial real estate, owner-occupied	1	4,226		4,216		4,206
Other residential	1	815		814		814
Home equity	2	224		224		222
Installment and other consumer	6	281		278		270
Total	17	$	6,882	$	6,992	$	6,943

¹ Excludes one contract modified and subsequently paid off during the nine months ended September 30, 2014 in the amount of $905 thousand pre-modification and post-modification.

Modifications during the nine months endedSeptember 30, 2015 primarily involved maturity extensions and other changes to loan terms, while modifications during the nine months ended September 30, 2014 primarily involved maturity extensions and interest rate concessions. During the first nine months of 2015 and 2014, there were no defaults on loans that had been modified in a TDR within the prior twelve-month period. We report defaulted TDRs based on a payment default definition of more than ninety days past due.

Impaired Loan Balances and Their Related Allowance by Major Classes of Loans

The tables below summarize information on impaired loans and their related allowance. Total impaired loans include non-accrual loans, accruing TDR loans and accreting PCI loans that have experienced post-acquisition declines in cash flows expected to be collected.

(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Total
September 30, 2015
Recorded investment in impaired loans:
With no specific allowance recorded	$	2,108	$	2,882	$	2,537	$	2,688	$	171	$	1,220	$	329	$	11,935
With a specific allowance recorded	2,343		4,111		217		552		391		800		1,128		9,542
Total recorded investment in impaired loans	$	4,451	$	6,993	$	2,754	$	3,240	$	562	$	2,020	$	1,457	$	21,477
Unpaid principal balance of impaired loans:
With no specific allowance recorded	$	2,105	$	2,882	$	4,528	$	2,688	$	171	$	1,220	$	329	$	13,923
With a specific allowance recorded	2,398		4,111		217		674		391		800		1,128		9,719
Total unpaid principal balance of impaired loans	$	4,503	$	6,993	$	4,745	$	3,362	$	562	$	2,020	$	1,457	$	23,642
Specific allowance	$	935	$	55	$	—	$	3	$	3	$	71	$	121	$	1,188
Average recorded investment in impaired loans during the quarter ended September 30, 2015	$	4,473	$	7,695	$	2,886	$	3,262	$	610	$	2,025	$	1,439	$	22,390
Interest income recognized on impaired loans during the quarter ended September 30, 2015	$	58	$	84	$	10	$	22	$	5	$	23	$	15	$	217
Average recorded investment in impaired loans during the nine months ended September 30, 2015	$	4,121	$	8,183	$	2,916	$	4,473	$	616	$	2,033	$	1,579	$	23,921
Interest income recognized on impaired loans during the nine months ended September 30, 2015	$	176	$	228	$	24	$	40	$	14	$	69	$	51	$	602
Average recorded investment in impaired loans during the quarter ended September 30, 2014	$	5,292	$	6,982	$	3,090	$	6,678	$	857	$	1,440	$	1,847	$	26,186
Interest income recognized on impaired loans during the quarter ended September 30, 2014	$	88	$	54	$	7	$	23	$	5	$	14	$	19	$	210
Average recorded investment in impaired loans during the nine months ended September 30, 2014	$	5,818	$	5,980	$	3,186	$	6,568	$	730	$	1,726	$	1,876	$	25,884
Interest income recognized on impaired loans during the nine months ended September 30, 2014	$	309	$	220	$	21	$	67	$	14	$	56	$	56	$	743

(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Total
December 31, 2014
Recorded investment in impaired loans:
With no specific allowance recorded	$	1,141	$	5,577	$	2,954	$	5,134	$	393	$	1,026	$	239	$	16,464
With a specific allowance recorded	2,443		2,882		—		561		300		1,019		1,554		$	8,759
Total recorded investment in impaired loans	$	3,584	$	8,459	$	2,954	$	5,695	$	693	$	2,045	$	1,793	$	25,223
Unpaid principal balance of impaired loans:
With no specific allowance recorded	$	1,186	$	6,577	$	4,945	$	7,824	$	880	$	1,026	$	239	$	22,677
With a specific allowance recorded	2,524		2,882		—		749		300		1,019		1,554		9,028
Total unpaid principal balance of impaired loans	$	3,710	$	9,459	$	4,945	$	8,573	$	1,180	$	2,045	$	1,793	$	31,705
Specific allowance	$	694	$	65	$	—	$	3	$	—	$	92	$	284	$	1,138
Average recorded investment in impaired loans during 2014	5,354		6,604		3,138		6,471		741		1,744		1,857		25,909
Interest income recognized on impaired loans during 2014	378		288		28		85		19		74		76		948

Management monitors delinquent loans continuously and identifies problem loans, generally loans graded substandard or worse, to be evaluated individually for impairment testing. Generally, the recorded investment in impaired loans is net of any charge-offs from estimated losses related to specifically-identified impaired loans when they are deemed uncollectible. The charged-off portion of impaired loans outstanding at September 30, 2015 totaled approximately $2.7 million.  In addition, the recorded investment in impaired loans is net of purchase discounts or premiums on acquired loans. At September 30, 2015 and December 31, 2014, outstanding commitments to extend credit on impaired loans, including loans to borrowers whose terms have been modified in TDRs, totaled $857 thousand and $1.4 million, respectively.

The following tables disclose loans by major portfolio category and activity in the ALLL, as well as the related ALLL disaggregated by impairment evaluation method.

Allowance for Loan Losses Rollforward for the Period
(in thousands)	Commercial and industrial			Commercial real estate, owner-occupied		Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated			Total
For the three months ended September 30, 2015
Allowance for loan losses:
Beginning balance	$	2,540		$	2,052	$	5,944		$	535		$	843		$	435		$	444		$	1,561		$	14,354
Provision (reversal)	86			17		128			158			9			(50		)	32			(380		)	—
Charge-offs	(2		)	—		—			—			—			—			(1		)	—			(3		)
Recoveries	92			—		12			—			1			—			1			—			106
Ending balance	$	2,716		$	2,069	$	6,084		$	693		$	853		$	385		$	476		$	1,181		$	14,457
For the nine months ended September 30, 2015
Allowance for loan losses:
Beginning balance	$	2,837		$	1,924	$	6,672		$	839		$	859		$	433		$	566		$	969		$	15,099
Provision (reversal)	(306		)	145		(606		)	693			(9		)	(48		)	(81		)	212			—
Charge-offs	(5		)	—		—			(839		)	—			—			(12		)	—			(856		)
Recoveries	190			—		18			—			3			—			3			—			214
Ending balance	$	2,716		$	2,069	$	6,084		$	693		$	853		$	385		$	476		$	1,181		$	14,457

Allowance for Loan Losses Rollforward for the Period
(in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
For the three months ended September 30, 2014
Allowance for loan losses:
Beginning balance	$	3,125		$	1,979		$	6,713		$	571		$	944		$	454		$	481		$	633	$	14,900
Provision (reversal)	(263		)	9			(26		)	(33		)	(18		)	(8		)	90			249		—
Charge-offs	—			—			—			—			—			—			(2		)	—		(2		)
Recoveries	44			5			5			96			1			—			—			—		151
Ending balance	$	2,906		$	1,993		$	6,692		$	634		$	927		$	446		$	569		$	882	$	15,049
For the nine months ended September 30, 2014
Allowance for loan losses:
Beginning balance	$	3,056		$	2,012		$	6,196		$	633		$	875		$	317		$	629		$	506	$	14,224
Provision (reversal)	(208		)	(24		)	455			109			49			129			(136		)	376		750
Charge-offs	(66		)	—			—			(204		)	—			—			(6		)	—		(276		)
Recoveries	124			5			41			96			3			—			82			—		351
Ending balance	$	2,906		$	1,993		$	6,692		$	634		$	927		$	446		$	569		$	882	$	15,049

Allowance for Loan Losses and Recorded Investment in Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
As of September 30, 2015:
Ending ALLL related to loans collectively evaluated for impairment	$	1,781		$	2,013		$	6,084		$	691		$	850		$	314		$	355		$	1,181	$	13,269
Ending ALLL related to loans  individually evaluated for impairment	$	928		$	56		$	—		$	—		$	3		$	71		$	121		$	—	$	1,179
Ending ALLL related to purchased  credit-impaired loans	$	7		$	—		$	—		$	2		$	—		$	—		$	—		$	—	$	9
Total	$	2,716		$	2,069		$	6,084		$	693		$	853		$	385		$	476		$	1,181	$	14,457
Loans outstanding:
Collectively evaluated for impairment	$	185,478		$	230,653		$	667,192		$	51,681		$	113,101		$	69,662		$	20,430		$	—	$	1,338,197
Individually evaluated for impairment1	4,305			6,993			2,754			3,238			562			2,020			1,457			—		21,329
Purchased credit-impaired	184			1,689			1,731			2			68			—			—			—		3,674
Total	$	189,967		$	239,335		$	671,677		$	54,921		$	113,731		$	71,682		$	21,887		$	—	$	1,363,200
Ratio of allowance for loan losses to total loans	1.43		%	0.86		%	0.91		%	1.26		%	0.75		%	0.54		%	2.17		%	NM		1.06		%
Allowance for loan losses to non-accrual loans	767		%	NM			301		%	347		%	496		%	NM			481		%	NM		548		%

¹ Total excludes $147 thousand of PCI loans that have experienced post-acquisition declines in cash flows expected to be collected. These loans are included in the "purchased credit-impaired" amount in the next line below.

NM - Not Meaningful

Allowance for Loan Losses and Recorded Investment in Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
As of December 31, 2014:
Ending ALLL related to loans collectively evaluated for impairment	$	2,143		$	1,859		$	6,672		$	836		$	859		$	341		$	282		$	969	$	13,961
Ending ALLL related to loans  individually evaluated for impairment	$	690		$	65		$	—		$	—		$	—		$	92		$	284		$	—	$	1,131
Ending ALLL related to purchased  credit-impaired loans	$	4		$	—		$	—		$	3		$	—		$	—		$	—		$	—	$	7
Total	$	2,837		$	1,924		$	6,672		$	839		$	859		$	433		$	566		$	969	$	15,099
Loans outstanding:
Collectively evaluated for impairment	$	206,603		$	220,933		$	668,371		$	42,718		$	110,028		$	70,990		$	14,995		$	—	$	1,334,638
Individually evaluated for impairment1	3,296			7,056			2,954			5,684			693			2,045			1,793			—		23,521
Purchased credit-impaired	324			2,616			2,174			11			67			—			—			—		5,192
Total	$	210,223		$	230,605		$	673,499		$	48,413		$	110,788		$	73,035		$	16,788		$	—	$	1,363,351
Ratio of allowance for loan losses to total loans	1.35		%	0.83		%	0.99		%	1.73		%	0.78		%	0.59		%	3.37		%	NM		1.11		%
Allowance for loan losses to non-accrual loans	NM			137		%	275		%	16		%	307		%	NM			544		%	NM		161		%

¹ Total excludes $1.7 million PCI loans that have experienced credit deterioration post-acquisition, which are included in the "purchased credit-impaired" amount in the next line below.

NM - Not Meaningful

Purchased Credit-Impaired Loans

We evaluated loans purchased in acquisitions in accordance with accounting guidance in ASC 310-30 related to loans acquired with deteriorated credit quality. Acquired loans are considered credit-impaired if there is evidence of significant deterioration of credit quality since origination and it is probable, at the acquisition date, that we will be unable to collect all contractually required payments receivable. Management has determined certain loans purchased in our two acquisitions to be PCI loans based on credit indicators such as nonaccrual status, past due status, loan risk grade, loan-to-value ratio, etc. Revolving credit agreements (e.g., home equity lines of credit and revolving commercial loans) are not considered PCI loans as cash flows cannot be reasonably estimated.

The following table reflects the outstanding balance and related carrying value of PCI loans as of September 30, 2015andDecember 31, 2014.

	September 30, 2015				December 31, 2014
PCI Loans (in thousands)	Unpaid principal balance		Carrying value		Unpaid principal balance		Carrying value
Commercial and industrial	$	258	$	184	$	479	$	324
Commercial real estate	4,355		3,420		6,831		4,790
Construction	125		2		136		11
Home equity	227		68		232		67
Total purchased credit-impaired loans	$	4,965	$	3,674	$	7,678	$	5,192

The activities in the accretable yield, or income expected to be earned, for PCI loans were as follows:

Accretable Yield	Three months ended						Nine months ended
(dollars in thousands)	September 30, 2015			September 30, 2014			September 30, 2015			September 30, 2014
Balance at beginning of period	$	3,711		$	4,514		$	4,027		$	3,649
Removals 1	(837		)	—			(914		)	(273		)
Accretion	(128		)	(126		)	(367		)	(494		)
Reclassifications from nonaccretable difference 2	—			(242		)	—			1,264
Balance at end of period	$	2,746		$	4,146		$	2,746		$	4,146

¹ Represents the accretable difference that is relieved when a loan exits the PCI population due to pay-off, full charge-off, or transfer to repossessed assets, etc.

² Primarily relates to changes in expected credit performance and changes in expected timing of cash flows.

Pledged Loans

Our FHLB line of credit is secured under terms of a blanket collateral agreement by a pledge of certain qualifying loans with an unpaid principal balance of $831.6 million and $868.1 million at September 30, 2015 and December 31, 2014, respectively. In addition, we pledge a certain residential loan portfolio, which totaled $41.9 million and $34.0 million at September 30, 2015 and December 31, 2014, respectively, to secure our borrowing capacity with the Federal Reserve Bank (“FRB”). Also see Note 6 below.

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases

At September 30, 2015, the approximate minimum future commitments payable under non-cancelable contracts for leased premises are as follows:

(in thousands)	2015		2016		2017		2018		2019		Thereafter		Total
Operating leases1	$	941	$	3,763	$	3,755	$	3,784	$	3,526	$	6,678	$	22,447

¹ Minimum payments have not been reduced by minimum sublease rentals of $271 thousand due in the future under non-

cancelable subleases.

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Investment Securities (Tables)

9 Months Ended

Sep. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities and Held-to-maturity Securities Reconciliation

Our investment securities portfolio consists of obligations of state and political subdivisions, corporate bonds, U.S. government agency securities, including mortgage-backed securities (“MBS”) and collateralized mortgage obligations (“CMOs”) issued or guaranteed by Federal National Mortgage Association ("FNMA"), Federal Home Loan Mortgage Corporation ("FHLMC"), or Government National Mortgage Association ("GNMA"), debentures issued by government-sponsored agencies such as FNMA, Federal Farm Credit Bureau, FHLB and FHLMC, as well as privately issued CMOs, as reflected in the table below:

	September 30, 2015									December 31, 2014
	Amortized		Fair		Gross Unrealized					Amortized		Fair		Gross Unrealized
(in thousands)	Cost		Value		Gains		(Losses)			Cost		Value		Gains		(Losses)
Held-to-maturity
Obligations of state and   political subdivisions	$	50,570	$	51,867	$	1,302	$	(5	)	$	63,425	$	65,121	$	1,736	$	(40	)
Corporate bonds	23,578		23,662		87		(3		)	40,257		40,448		216		(25		)
MBS pass-through securities issued by FHLMC and FNMA	12,323		12,575		259		(7		)	12,755		13,074		319		—
Total held-to-maturity	86,471		88,104		1,648		(15		)	116,437		118,643		2,271		(65		)
Available-for-sale
Securities of U.S. government agencies:
MBS pass-through securities issued by FHLMC and FNMA	116,513		117,963		1,488		(38		)	92,963		94,214		1,262		(11		)
CMOs issued by FNMA	16,211		16,385		208		(34		)	14,771		14,790		77		(58		)
CMOs issued by FHLMC	24,645		24,869		239		(15		)	31,238		31,260		109		(87		)
CMOs issued by GNMA	11,951		12,200		254		(5		)	17,573		17,855		298		(16		)
Debentures of government- sponsored agencies	101,987		102,165		229		(51		)	14,694		14,557		95		(232		)
Privately issued CMOs	4,700		4,891		193		(2		)	7,137		7,294		172		(15		)
Obligations of state and political subdivisions	50,073		50,377		345		(41		)	15,733		15,880		155		(8		)
Corporate bonds	4,944		5,006		62		—			4,936		4,998		66		(4		)
Total available-for-sale	331,024		333,856		3,018		(186		)	199,045		200,848		2,234		(431		)
Total investment securities	$	417,495	$	421,960	$	4,666	$	(201	)	$	315,482	$	319,491	$	4,505	$	(496	)

Investments Classified by Contractual Maturity Date

The amortized cost and fair value of investment debt securities by contractual maturity at September 30, 2015 are shown below. Expected maturities will differ from contractual maturities because the issuers of the securities may have the right to call or prepay obligations with or without call or prepayment penalties.

	September 30, 2015								December 31, 2014
	Held-to-Maturity				Available-for-Sale				Held-to-Maturity				Available-for-Sale
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within one year	$	34,325	$	34,459	$	11,955	$	12,019	$	39,778	$	39,913	$	2,378	$	2,388
After one year but within five years	31,072		31,821		127,221		127,607		50,983		51,953		43,866		43,919
After five years through ten years	9,876		10,352		51,686		51,885		11,679		12,426		9,644		9,749
After ten years	11,198		11,472		140,162		142,345		13,997		14,351		143,157		144,792
Total	$	86,471	$	88,104	$	331,024	$	333,856	$	116,437	$	118,643	$	199,045	$	200,848

Schedule of Realized Gain (Loss)

Sales of investment securities and gross realized gains and losses are shown in the following table. The sales of the held-to-maturity securities were due to evidence of significant deterioration of the issuers' creditworthiness since purchase.

	Three months ended				Nine months ended
(in thousands)	September 30, 2015		September 30, 2014		September 30, 2015		September 30, 2014
Available-for-sale:
Sales proceeds	$	—	$	413	$	1,559	$	2,435
Gross realized gains	$	—	$	4	$	8	$	4
Gross realized (losses)	$	—	$	—	$	—	$	(15	)
Held-to-maturity:
Sales proceeds	$	1,015	$	—	$	1,015	$	2,146
Gross realized gains	$	72	$	—	$	72	$	104
Gross realized (losses)	$	—	$	—	$	—	$	—

Schedule of Unrealized Loss on Investments

Those securities are summarized and classified according to the duration of the loss period in the table below:

September 30, 2015	< 12 continuous months					≥ 12 continuous months					Total securities  in a loss position
(in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity
Obligations of state & political subdivisions	$	2,751	$	(5	)	$	—	$	—		$	2,751	$	(5	)
Corporate bonds	5,540		(3		)	—		—			5,540		(3		)
MBS pass-through securities issued by FHLMC and FNMA	2,344		(7		)	—		—			2,344		(7		)
Total held-to-maturity	10,635		(15		)	—		—			10,635		(15		)
Available-for-sale
MBS pass-through securities issued by FHLMC and FNMA	21,640		(38		)	—		—			21,640		(38		)
CMOs issued by FNMA	—		—			3,428		(34		)	3,428		(34		)
CMOs issued by FHLMC	—		—			2,089		(15		)	2,089		(15		)
CMOs issued by GNMA	2,570		(5		)	—		—			2,570		(5		)
Debentures of government- sponsored agencies	—		—			9,949		(51		)	9,949		(51		)
Privately issued CMOs	—		—			379		(2		)	379		(2		)
Obligations of state & political subdivisions	9,867		(39		)	582		(2		)	10,449		(41		)
Total available-for-sale	34,077		(82		)	16,427		(104		)	50,504		(186		)
Total temporarily impaired securities	$	44,712	$	(97	)	$	16,427	$	(104	)	$	61,139	$	(201	)

December 31, 2014	< 12 continuous months					≥ 12 continuous months					Total securities  in a loss position
(dollars in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity
Obligations of state & political subdivisions	$	5,830	$	(27	)	$	359	$	(13	)	$	6,189	$	(40	)
Corporate bonds	3,009		(1		)	3,533		(24		)	6,542		(25		)
Total held-to-maturity	8,839		(28		)	3,892		(37		)	12,731		(65		)
Available-for-sale
MBS pass-through securities issued by FHLMC and FNMA	1,960		(11		)	—		—			1,960		(11		)
CMOs issued by FNMA	—		—			4,115		(58		)	4,115		(58		)
CMOs issued by FHLMC	17,157		(44		)	2,291		(43		)	19,448		(87		)
CMOs issued by GNMA	3,262		(16		)	—		—			3,262		(16		)
Debentures of government- sponsored agencies	494		(1		)	9,769		(231		)	10,263		(232		)
Privately issued CMOs	817		(15		)	—		—			817		(15		)
Obligations of state & political subdivisions	2,695		(3		)	1,112		(5		)	3,807		(8		)
Corporate bonds	1,002		(1		)	990		(3		)	1,992		(4		)
Total available-for-sale	27,387		(91		)	18,277		(340		)	45,664		(431		)
Total temporarily impaired securities	$	36,226	$	(119	)	$	22,169	$	(377	)	$	58,395	$	(496	)

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Derivative Financial Instruments and Hedging Activities

9 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments and Hedging Activities

Derivative Financial Instruments and Hedging Activities

We have entered into interest rate swap agreements, primarily as an asset/liability management strategy, in order to mitigate the changes in the fair value of specified long-term fixed-rate loans (or firm commitments to enter into long-term fixed-rate loans) caused by changes in interest rates. These hedges allow us to offer long-term fixed rate loans to customers without assuming the interest rate risk of a long-term asset. Converting our fixed-rate interest payments to floating-rate interest payments, generally benchmarked to the one-month U.S. dollar LIBOR index, protects us against changes in the fair value of our loans associated with fluctuating interest rates.

The fixed-rate payment features of the interest rate swap agreements are generally structured at inception to mirror substantially all of the provisions of the hedged loan agreements. These interest rate swaps, designated and qualified as fair value hedges, are carried on the consolidated statements of condition at their fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative). The unrealized gain or loss in fair value of the hedged fixed-rate loan due to LIBOR interest rate movements is recorded as an adjustment to the hedged loan.

From time to time, we make firm commitments to enter into long-term fixed-rate loans with borrowers backed by yield maintenance agreements and simultaneously enter into forward interest rate swap agreements with correspondent banks to mitigate the change in fair value of the yield maintenance agreement. Prior to loan funding, yield maintenance agreements with net settlement features that meet the definition of a derivative are considered as non-designated hedges and are carried on the consolidated statements of condition at their fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative). The offsetting changes in the fair value of the forward swap and the yield maintenance agreement are recorded in interest income. When the fixed-rate loans are originated, the forward swaps are designated to offset the change in fair value in the loans. Subsequent to the point of the swap designations, the related yield maintenance agreements are no longer considered derivatives. Their fair value at the designation date is recorded in other assets and is amortized using the effective yield method over the life of the respective designated loans.

The net effect of the change in fair value of interest rate swaps, the amortization of the yield maintenance agreements and the change in the fair value of the hedged loans result in an insignificant amount of hedge ineffectiveness recognized in interest income.

Our credit exposure, if any, on interest rate swaps is limited to the favorable value (net of any collateral pledged to us) and interest payments of all swaps by each counterparty. Conversely, when an interest rate swap is in a liability position exceeding a certain threshold, we may be required to post collateral to the counterparty in an amount determined by the agreements. Collateral levels are monitored and adjusted on a regular basis for changes in interest rate swap values.

As of September 30, 2015, we had eight interest rate swap agreements, which are scheduled to mature in September 2018, June 2020, August 2020, June 2031, October 2031, July 2032, August 2037 and October 2037. All of our derivatives are accounted for as fair value hedges. Our interest rate swaps are settled monthly with counterparties. Accrued interest on the swaps totaled $34 thousand and $41 thousand as of September 30, 2015 and December 31, 2014, respectively. Information on our derivatives follows:

	Asset derivatives				Liability derivatives
(in thousands)	September 30, 2015		December 31, 2014		September 30, 2015		December 31, 2014
Fair value hedges:
Interest rate contracts notional amount	$	—	$	4,589	$	29,999	$	26,899
Interest rate contracts fair value1	$	—	$	61	$	2,328	$	1,996

	Three months ended
(in thousands)	September 30, 2015			September 30, 2014
(Decrease) increase in value of designated interest rate swaps recognized in interest income	$	(813	)	$	21
Payment on interest rate swaps recorded in interest income	(231		)	(251		)
Increase (decrease) in value of hedged loans recognized in interest income	905			(54		)
Decrease in value of yield maintenance agreement recognized against interest income	(13		)	(15		)
Net loss on derivatives recognized against interest income 2	$	(152	)	$	(299	)

	Nine months ended
(in thousands)	September 30, 2015			September 30, 2014
(Decrease) increase in value of designated interest rate swaps recognized in interest income	$	(393	)	$	334
Payment on interest rate swaps recorded in interest income	(700		)	(755		)
Increase (decrease) in value of hedged loans recognized in interest income	453			(133		)
Decrease in value of yield maintenance agreement recognized against interest income	(39		)	(77		)
Net loss on derivatives recognized against interest income 2	$	(679	)	$	(631	)

¹ See Note 3 for valuation methodology.

² Includes hedge ineffectiveness gain of $79 thousand and loss of $48 thousand for the quarters ended September 30, 2015 and September 30, 2014, respectively. Ineffectiveness gain of $21 thousand and $125 thousand was recorded in interest income during the nine months ended September 30, 2015 and September 30, 2014, respectively. Changes in value of swaps were included in the assessment of hedge effectiveness. Hedge ineffectiveness is the measure of the extent to which the change in the fair value of the hedging instruments does not offset the change in the fair value of the hedged items.

Our derivative transactions with counterparties are under International Swaps and Derivative Association (“ISDA”) master agreements that include “right of set-off” provisions. “Right of set-off” provisions are legally enforceable rights to offset recognized amounts and there may be an intention to settle such amounts on a net basis. We do not offset such financial instruments for financial reporting purposes.

Information on financial instruments that are eligible for offset in the consolidated statements of condition follows:

Offsetting of Financial Assets and Derivative Assets
(in thousands)							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts
	Gross Amounts		Offset in the		of Assets Presented
	of Recognized		Statements of		in the Statements		Financial			Cash Collateral
	Assets1		Condition		of Condition1		Instruments			Received		Net Amount
As of September 30, 2015
Derivatives by Counterparty
Counterparty A	$	—	$	—	$	—	$	—		$	—	$	—
Counterparty B	—		—		—		—			—		—
Total	$	—	$	—	$	—	$	—		$	—	$	—
As of December 31, 2014
Derivatives by Counterparty
Counterparty A	$	61	$	—	$	61	$	(61	)	$	—	$	—
Counterparty B	—		—		—		—			—		—
Total	$	61	$	—	$	61	$	(61	)	$	—	$	—

¹ Amounts exclude accrued interest totaling zero and $1 thousand at September 30, 2015 and December 31, 2014, respectively.

Offsetting of Financial Liabilities and Derivative Liabilities
(in thousands)							Gross Amounts Not Offset in the Statements of Condition
			Gross Amounts		Net Amounts of
	Gross Amounts		Offset in the		Liabilities Presented
	of Recognized		Statements of		in the Statements of		Financial			Cash Collateral
	Liabilities2		Condition		Condition2		Instruments			Pledged			Net Amount
As of September 30, 2015
Derivatives by Counterparty
Counterparty A	$	2,001	$	—	$	2,001	$	—		$	(2,001	)	$	—
Counterparty B	327		—		327		—			(327		)	—
Total	$	2,328	$	—	$	2,328	$	—		$	(2,328	)	$	—
As of December 31, 2014
Derivatives by Counterparty
Counterparty A	$	1,616	$	—	$	1,616	$	(61	)	$	(1,360	)	$	195
Counterparty B	380		—		380		—			(380		)	—
Total	$	1,996	$	—	$	1,996	$	(61	)	$	(1,740	)	$	195

² Amounts exclude accrued interest totaling $34 thousand and $40 thousand at September 30, 2015 and December 31, 2014, respectively.

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Stockholders' Equity

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

Stockholders' Equity

Stockholders' Equity

Warrant

Under the United States Department of the Treasury Capital Purchase Program (the “TCPP”), Bancorp issued to the U.S. Treasury a warrant to purchase 154,242 shares of common stock at a per share exercise price of $27.23. The warrant was immediately exercisable and had an expiration date of December 5, 2018. The warrant was subsequently auctioned to two institutional investors in November 2011 and was exercised in September 2015. The warrant represented the right to purchase 157,711 shares of common stock at $26.63 per share. The cashless exercise resulted in the net issuance of 70,591 shares of common stock.

Dividends

Presented below is a summary of cash dividends paid to common shareholders, recorded as a reduction of retained earnings.

	Three months ended				Nine months ended
(in thousands, except per share data)	September 30, 2015		September 30, 2014		September 30, 2015		September 30, 2014
Cash dividends to common stockholders	$	1,316	$	1,185	$	3,936	$	3,428
Cash dividends per common share	$	0.22	$	0.20	$	0.66	$	0.58

Share-Based Payments

The fair value of stock options as of the grant date is recorded as stock-based compensation expense in the consolidated statements of comprehensive income over the requisite service period with a corresponding increase in common stock. Stock-based compensation also includes compensation expense related to the issuance of unvested restricted stock awards and performance-based stock awards pursuant to the 2007 Equity Plan. The grant-date fair value of the restricted stock awards and performance-based stock awards, which is equal to the intrinsic value on that date, is being recorded as compensation expense over the requisite service period with a corresponding increase in common stock as the shares vest.

Beginning in 2015, performance-based stock awards were issued to a selected group of employees. Stock award vesting is contingent upon the achievement of pre-established long-term performance goals set by the Compensation Committee of the Board of Directors. Performance is measured over a three-year period and cliff vested. These performance-based stock awards were granted at a maximum opportunity level, and based on the achievement of the pre-established goals, the actual payouts can range from 0% to 200% of the target award. For performance-based stock awards, an estimate is made of the number of shares expected to vest based on the probability that the performance criteria will be achieved to determine the amount of compensation expense to be recognized. The estimate is re-evaluated quarterly and total compensation expense is adjusted for any change in the current period.

In addition, we record excess tax benefits on the exercise of non-qualified stock options, the disqualifying disposition of incentive stock options and vesting of restricted stock awards as an addition to common stock with a corresponding decrease in current taxes payable.

The holders of unvested restricted stock awards and performance-based stock awards are entitled to dividends on the same per-share ratio as holders of common stock. Dividends paid on the portion of share-based awards not expected to vest are also included in stock-based compensation expense. Tax benefits on dividends paid on the portion of share-based awards expected to vest are recorded as an increase to common stock with a corresponding decrease in current taxes payable.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Financial Instruments with Off-Balance Sheet Risk

We make commitments to extend credit in the normal course of business to meet the financing needs of our customers. These financial instruments include commitments to extend credit in the form of loans or through standby letters of credit. Commitments to extend credit are agreements to lend to a customer as long as 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 fully drawn upon, the total commitment amount does not necessarily represent future cash requirements.

We are exposed to credit loss equal to the contract amount of the commitment in the event of nonperformance by the borrower. We use the same credit policies in making commitments as we do for on-balance-sheet instruments and we evaluate each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by us, is based on Management's credit evaluation of the borrower. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, and real property.

The contractual amount of loan commitments and standby letters of credit not reflected on the consolidated statements of condition was $375.5 million at September 30, 2015. This amount included $195.6 million under commercial lines of credit (these commitments are generally contingent upon customers maintaining specific credit standards), $125.1 million under revolving home equity lines, $38.9 million under undisbursed construction loans, $4.3 million under standby letters of credit, and a remaining $11.6 million under personal and other lines of credit. We record an allowance for losses on these off-balance sheet commitments based on an estimate of probabilities of these commitments being drawn upon according to our historical utilization experience on different types of commitments and expected loss severity. We set aside an allowance for losses on off-balance sheet commitments in the amount of $1.0 million for these commitments as of September 30, 2015 and December 31, 2014, which is recorded in interest payable and other liabilities on the consolidated statements of condition.

Operating Leases

We rent certain premises and equipment under long-term, non-cancelable operating leases expiring at various dates through the year 2028. Most of the leases contain certain renewal options and escalation clauses. At September 30, 2015, the approximate minimum future commitments payable under non-cancelable contracts for leased premises are as follows:

(in thousands)	2015		2016		2017		2018		2019		Thereafter		Total
Operating leases1	$	941	$	3,763	$	3,755	$	3,784	$	3,526	$	6,678	$	22,447

¹ Minimum payments have not been reduced by minimum sublease rentals of $271 thousand due in the future under non-

cancelable subleases.

Litigation Matters

We may be party to legal actions which arise from time to time as part of the normal course of our business.  We believe, after consultation with legal counsel, that we have meritorious defenses in these actions, and that litigation contingent liability, if any, will not have a material adverse effect on our financial position, results of operations, or cash flows.

We are responsible for our proportionate share of certain litigation indemnifications provided to Visa U.S.A. ("Visa") by its member banks in connection with lawsuits related to anti-trust charges and interchange fees ("Covered Litigation"). Visa Inc. maintains an escrow account from which settlements of, or judgments in, the covered litigation are paid. According to the latest SEC Form 10-Q filed by Visa, Inc. on July 23, 2015, at June 30, 2015, the balance of the escrow account was $1.1 billion. On January 14, 2015, following a Court-approved process to give class members who previously opted out of the damages portion of the class settlement an option to rejoin it, the class administrator submitted a report stating that it had received 1,179 requests by merchants to rejoin the cash settlement class, some of which may include multiple merchants. The conversion rate of Visa Class B common stock held by us to Class A common stock (as discussed in Note 4) may reduce if Visa makes more Covered Litigation settlement payments in the future, and the full impact to member banks is still uncertain. However, we are not aware of significant future cash settlement payments required by us on the Covered Litigation.

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Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

The consolidated financial statements include the accounts of Bank of Marin Bancorp (“Bancorp”), a bank holding company, and its wholly-owned bank subsidiary, Bank of Marin (the “Bank”), a California state-chartered commercial bank. References to “we,” “our,” “us” mean the holding company and the Bank that are consolidated for financial reporting purposes. The accompanying unaudited consolidated interim financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission ("SEC"). Certain information and note disclosures normally included in annual financial statements prepared in accordance with generally accepted accounting principles ("GAAP") have been condensed or omitted pursuant to those rules and regulations. Although we believe that the disclosures are adequate and the information presented is not misleading, we suggest that these interim financial statements be read in conjunction with the financial statements and the notes thereto included in our 2014 Annual Report on Form 10-K.  In the opinion of Management, the unaudited consolidated financial statements reflect all adjustments which are necessary for a fair presentation of the consolidated financial position, the results of operations, changes in comprehensive income, changes in stockholders’ equity, and cash flows for the periods presented. All material intercompany transactions have been eliminated. The results of these interim periods may not be indicative of the results for the full year or for any other period. We have evaluated subsequent events through the date of filing with the SEC and have determined that there are no subsequent events that require additional recognition or disclosure.

In connection with the acquisition of NorCal Community Bancorp ("NorCal") (the "Acquisition"), Bancorp assumed ownership of Norcal Community Bancorp Trusts I and II (the "Trusts"). Bancorp is not considered the primary beneficiary of the Trusts (variable interest entities), therefore the Trusts are not consolidated in our consolidated financial statements, but rather the subordinated debentures due to the Trusts are shown as liabilities on our consolidated statements of condition (see Note 6). Bancorp's investment in the common stock of the Trusts is accounted for under the equity method and is included in interest receivable and other assets on the consolidated statements of condition.

Earnings Per Share

Basic earnings per share (“EPS”) are calculated by dividing net income by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards. Diluted EPS are calculated using the weighted average number of potentially dilutive common shares, which is based on average market prices during the three months of the reporting period, under the treasury stock method. The number of potentially dilutive common shares included in year-to-date diluted EPS is a year-to-date weighted average of potentially dilutive common shares included in each quarterly diluted EPS computation. We have two forms of outstanding stock: common stock and unvested restricted stock awards. Holders of unvested restricted stock awards receive non-forfeitable dividends at the same rate as common shareholders and they both share equally in undistributed earnings. Therefore, under the two-class method, the difference in EPS is not significant for these participating securities.

Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers (Topic 606). The ASU is a converged standard involving FASB and International Financial Reporting Standards that provides a single comprehensive revenue recognition model for all contracts with customers across transactions and industries. The core principal of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount and at a time that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers (Topic 606) Deferral of the Effective Date which institutes a one-year deferral of the effective date of this amendment to annual reporting periods beginning after December 15, 2017. We are currently evaluating the provisions of this ASU and will be monitoring developments and additional guidance to determine the potential impact the new standard will have on our financial condition and results of operations.

In June 2014, the FASB issued ASU No. 2014-12, Compensation - Stock Compensation (Topic 718) Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period. This ASU provides guidance for entities that grant their employees share-based payment awards where a performance target that affects vesting could be achieved after the requisite service period. That is the case when an employee is eligible to retire or otherwise terminate employment before the end of the period in which a performance target could be achieved and still be eligible to vest in the award if and when the performance target is achieved. This ASU stipulates that compensation expense should be recognized in the period where the performance target becomes probable of being achieved as opposed to the date that the award was granted. ASU 2014-12 is effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. We do not expect this ASU to have a material impact on our financial condition or results of operations.

In April 2015, the FASB issued ASU No. 2015-05, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. The amendments in this ASU provide guidance about a customer's accounting for fees paid in a cloud computing arrangement. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, then the customer should account for the arrangement as a service contract. The two criteria that must be met to be considered a software license are: 1) the customer has the contractual right to take possession of the software at any time during the hosting period without significant penalty; and 2) it is feasible for the customer to either run the software on its own hardware or contract with another party unrelated to the vendor to host the software. ASU 2015-05 is effective for annual periods, including interim periods within those annual periods beginning after December 15, 2015. We do not expect this ASU to have a material impact on our financial condition or results of operations.

In September 2015, the FASB issued ASU No. 2015-16, Business Combinations (Topic 805) Simplifying the Accounting for Measurement-Period Adjustments. The amendments in this ASU require that an acquirer recognize adjustments to estimated amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. Prior to the amendments, an acquirer was required to retrospectively adjust the provisional amounts recognized at the acquisition date with a corresponding adjustment to goodwill. ASU 2015-16 is effective for public business entities for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. We do not expect this ASU to have a material impact on our financial condition or results of operations.

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Loans and Allowance for Loan Losses - Loans Outstanding and Aging Analysis (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	$ 3,653	$ 10,359
Current	1,359,547	1,352,992
Total loans	1,363,200	1,363,351
Financing Receivable, Recorded Investment, Nonaccrual Status	2,638	9,350
Purchased Credit Impaired (PCI) loans no longer accreting interest	2	1,400
Purchased Credit-impaired (PCI) loans accreting interest	3,700	3,800
Deferred loan fees	861	487
Unaccreted purchase discounts on non-PCI loans	3,400	4,400
30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	3,209	1,009
60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	251
90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	193
Commercial loans | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	1,951	183
Current	188,016	210,040
Total loans	189,967	210,223
Financing Receivable, Recorded Investment, Nonaccrual Status	354	0
Commercial loans | Commercial and industrial | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	1,780	183
Commercial loans | Commercial and industrial | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	150
Commercial loans | Commercial and industrial | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	21
Commercial real estate loans | Commercial real estate, owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	139	1,403
Current	239,196	229,202
Total loans	239,335	230,605
Financing Receivable, Recorded Investment, Nonaccrual Status	0	1,403
Commercial real estate loans | Commercial real estate, owner-occupied | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	139	0
Commercial real estate loans | Commercial real estate, owner-occupied | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0
Commercial real estate loans | Commercial real estate, owner-occupied | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0
Commercial real estate loans | Commercial real estate, investor
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	421	2,429
Current	671,256	671,070
Total loans	671,677	673,499
Financing Receivable, Recorded Investment, Nonaccrual Status	2,020	2,429
Commercial real estate loans | Commercial real estate, investor | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	421	0
Commercial real estate loans | Commercial real estate, investor | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0
Commercial real estate loans | Commercial real estate, investor | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0
Commercial real estate loans | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0	5,134
Current	54,921	43,279
Total loans	54,921	48,413
Financing Receivable, Recorded Investment, Nonaccrual Status	2	5,134
Commercial real estate loans | Construction | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0	0
Commercial real estate loans | Construction | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0
Commercial real estate loans | Construction | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0
Residential loans | Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	1,061	926
Current	112,670	109,862
Total loans	113,731	110,788
Financing Receivable, Recorded Investment, Nonaccrual Status	172	280
Residential loans | Home equity | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	862	646
Residential loans | Home equity | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	99
Residential loans | Home equity | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	100
Residential loans | Other residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0	0
Current	71,682	73,035
Total loans	71,682	73,035
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Residential loans | Other residential | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0	0
Residential loans | Other residential | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0
Residential loans | Other residential | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	0
Consumer loans | Installment and other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	81	284
Current	21,806	16,504
Total loans	21,887	16,788
Financing Receivable, Recorded Investment, Nonaccrual Status	90	104
Consumer loans | Installment and other consumer | 30-59 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	7	$ 180
Consumer loans | Installment and other consumer | 60-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	2
Consumer loans | Installment and other consumer | 90 days or more past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due	$ 72

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Borrowings (Tables)

9 Months Ended

Sep. 30, 2015

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

The following is a summary of the contractual terms of the subordinated debentures due to the Trusts as of September 30, 2015:

(in thousands)
Subordinated debentures due to NorCal Community Bancorp Trust I on October 7, 2033 with interest payable quarterly, based on 3-month LIBOR plus 3.05%, repricing quarterly (3.34% as of September 30, 2015), redeemable, in whole or in part, on any interest payment date	$	4,124
Subordinated debentures due to NorCal Community Bancorp Trust II on March 15, 2036 with interest payable quarterly, based on 3-month LIBOR plus 1.40%, repricing quarterly (1.74% as of September 30, 2015), redeemable, in whole or in part, on any interest payment date	4,124
Total	$	8,248

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Fair Value of Assets and Liabilities - Recorded on a Recurring Basis (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($) security	Dec. 31, 2014 USD ($) security
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	$ 333,856	$ 200,848
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of securities | security	0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of securities | security	1
Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Increase in unrealized gain due to transfers to Level 3	$ (8)
Debentures of government sponsored agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	102,165	$ 14,557
Privately-issued collateralized mortgage obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	4,891	7,294
Obligations of state and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	50,377	15,880
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	5,006	4,998
Assets and liabilities at fair value measured on a recurring basis | Carrying Value | Interest rate contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)		61
Derivative financial liabilities (interest rate contracts)	2,328	1,996
Assets and liabilities at fair value measured on a recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)		0
Derivative financial liabilities (interest rate contracts)	0	0
Assets and liabilities at fair value measured on a recurring basis | Significant Other Observable Inputs (Level 2) | Interest rate contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)		61
Derivative financial liabilities (interest rate contracts)	2,328	1,996
Assets and liabilities at fair value measured on a recurring basis | Significant Unobservable Inputs (Level 3) | Interest rate contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial assets (interest rate contracts)		0
Derivative financial liabilities (interest rate contracts)	0	0
Assets and liabilities at fair value measured on a recurring basis | Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	171,417	158,119
Assets and liabilities at fair value measured on a recurring basis | Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	0	0
Assets and liabilities at fair value measured on a recurring basis | Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	169,677	155,421
Assets and liabilities at fair value measured on a recurring basis | Mortgage-backed securities and collateralized mortgage obligations issued by U.S. government-sponsored agencies | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	1,740	2,698
Assets and liabilities at fair value measured on a recurring basis | Debentures of government sponsored agencies | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	102,165	14,557
Assets and liabilities at fair value measured on a recurring basis | Debentures of government sponsored agencies | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	0	0
Assets and liabilities at fair value measured on a recurring basis | Debentures of government sponsored agencies | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	102,165	14,557
Assets and liabilities at fair value measured on a recurring basis | Debentures of government sponsored agencies | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	0	0
Assets and liabilities at fair value measured on a recurring basis | Privately-issued collateralized mortgage obligations | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	4,891	7,294
Assets and liabilities at fair value measured on a recurring basis | Privately-issued collateralized mortgage obligations | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	0	0
Assets and liabilities at fair value measured on a recurring basis | Privately-issued collateralized mortgage obligations | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	4,891	7,294
Assets and liabilities at fair value measured on a recurring basis | Privately-issued collateralized mortgage obligations | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	0	0
Assets and liabilities at fair value measured on a recurring basis | Obligations of state and political subdivisions | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	50,377	15,880
Assets and liabilities at fair value measured on a recurring basis | Obligations of state and political subdivisions | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	0	0
Assets and liabilities at fair value measured on a recurring basis | Obligations of state and political subdivisions | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	50,377	15,771
Assets and liabilities at fair value measured on a recurring basis | Obligations of state and political subdivisions | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	0	0
Assets and liabilities at fair value measured on a recurring basis | Corporate bonds | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	5,006	4,998
Assets and liabilities at fair value measured on a recurring basis | Corporate bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	0	0
Assets and liabilities at fair value measured on a recurring basis | Corporate bonds | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	5,006	5,437
Assets and liabilities at fair value measured on a recurring basis | Corporate bonds | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale, Fair Value	$ 0	$ 0

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Loans and Allowance for Loan Losses - Pledged Loans (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Financial Instruments Owned and Pledged as Collateral [Line Items]
Residential loans pledged for FRB borrowings	$ 831.6	$ 868.1
Other residential
Financial Instruments Owned and Pledged as Collateral [Line Items]
Pledged residential loan portfolio to secure borrowing with FRB	$ 41.9	$ 34.0

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss), Net of Taxes
Balance (in shares) at Dec. 31, 2013		5,877,524
Balance at Dec. 31, 2013	$ 180,887	$ 80,095	$ 101,464	$ (672)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	19,771		19,771
Other comprehensive income	1,760			1,760
Stock options exercised (in shares)		49,415
Stock options exercised	1,452	$ 1,452
Excess tax benefit - stock-based compensation	172	$ 172
Stock issued under employee stock purchase plan (in shares)		521
Stock issued under employee stock purchase plan	23	$ 23
Restricted stock granted (in shares)		8,523
Restricted stock granted	0	$ 0
Restricted stock forfeited/cancelled (in shares)		(2,067)
Restricted stock forfeited/cancelled	0	$ 0
Stock-based compensation - stock options	200	200
Stock-based compensation - restricted stock	246	$ 246
Cash dividends paid on common stock	(4,733)		(4,733)
Stock purchased by directors under director stock plan (in shares)		260
Stock purchased by directors under director stock plan	12	$ 12
Stock issued in payment of director fees (in shares)		5,306
Stock issued in payment of director fees	$ 236	$ 236
Balance (in shares) at Dec. 31, 2014	5,939,482	5,939,482
Balance at Dec. 31, 2014	$ 200,026	$ 82,436	116,502	1,088
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	13,516		13,516
Other comprehensive income	512			512
Stock options exercised (in shares)		29,358
Stock options exercised	888	$ 888
Excess tax benefit - stock-based compensation	172	$ 172
Stock issued under employee stock purchase plan (in shares)		253
Stock issued under employee stock purchase plan	12	$ 12
Restricted stock granted (in shares)		15,970
Restricted stock granted	0	$ 0
Restricted stock forfeited/cancelled (in shares)		(450)
Restricted stock forfeited/cancelled	0	$ 0
Stock-based compensation - stock options	192	192
Stock-based compensation - restricted stock	285	$ 285
Cash dividends paid on common stock	(3,936)		(3,936)
Stock purchased by directors under director stock plan (in shares)		245
Stock purchased by directors under director stock plan	12	$ 12	0
Stock issued in payment of director fees (in shares)		5,295
Stock issued in payment of director fees	$ 275	$ 275
Stock issued from exercise of warrants		70,591
Balance (in shares) at Sep. 30, 2015	6,060,744	6,060,744
Balance at Sep. 30, 2015	$ 211,954	$ 84,272	$ 126,082	$ 1,600

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Investment Securities

9 Months Ended

Sep. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Investment Securities

Investment Securities

Our investment securities portfolio consists of obligations of state and political subdivisions, corporate bonds, U.S. government agency securities, including mortgage-backed securities (“MBS”) and collateralized mortgage obligations (“CMOs”) issued or guaranteed by Federal National Mortgage Association ("FNMA"), Federal Home Loan Mortgage Corporation ("FHLMC"), or Government National Mortgage Association ("GNMA"), debentures issued by government-sponsored agencies such as FNMA, Federal Farm Credit Bureau, FHLB and FHLMC, as well as privately issued CMOs, as reflected in the table below:

	September 30, 2015									December 31, 2014
	Amortized		Fair		Gross Unrealized					Amortized		Fair		Gross Unrealized
(in thousands)	Cost		Value		Gains		(Losses)			Cost		Value		Gains		(Losses)
Held-to-maturity
Obligations of state and   political subdivisions	$	50,570	$	51,867	$	1,302	$	(5	)	$	63,425	$	65,121	$	1,736	$	(40	)
Corporate bonds	23,578		23,662		87		(3		)	40,257		40,448		216		(25		)
MBS pass-through securities issued by FHLMC and FNMA	12,323		12,575		259		(7		)	12,755		13,074		319		—
Total held-to-maturity	86,471		88,104		1,648		(15		)	116,437		118,643		2,271		(65		)
Available-for-sale
Securities of U.S. government agencies:
MBS pass-through securities issued by FHLMC and FNMA	116,513		117,963		1,488		(38		)	92,963		94,214		1,262		(11		)
CMOs issued by FNMA	16,211		16,385		208		(34		)	14,771		14,790		77		(58		)
CMOs issued by FHLMC	24,645		24,869		239		(15		)	31,238		31,260		109		(87		)
CMOs issued by GNMA	11,951		12,200		254		(5		)	17,573		17,855		298		(16		)
Debentures of government- sponsored agencies	101,987		102,165		229		(51		)	14,694		14,557		95		(232		)
Privately issued CMOs	4,700		4,891		193		(2		)	7,137		7,294		172		(15		)
Obligations of state and political subdivisions	50,073		50,377		345		(41		)	15,733		15,880		155		(8		)
Corporate bonds	4,944		5,006		62		—			4,936		4,998		66		(4		)
Total available-for-sale	331,024		333,856		3,018		(186		)	199,045		200,848		2,234		(431		)
Total investment securities	$	417,495	$	421,960	$	4,666	$	(201	)	$	315,482	$	319,491	$	4,505	$	(496	)

The amortized cost and fair value of investment debt securities by contractual maturity at September 30, 2015 are shown below. Expected maturities will differ from contractual maturities because the issuers of the securities may have the right to call or prepay obligations with or without call or prepayment penalties.

	September 30, 2015								December 31, 2014
	Held-to-Maturity				Available-for-Sale				Held-to-Maturity				Available-for-Sale
(in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within one year	$	34,325	$	34,459	$	11,955	$	12,019	$	39,778	$	39,913	$	2,378	$	2,388
After one year but within five years	31,072		31,821		127,221		127,607		50,983		51,953		43,866		43,919
After five years through ten years	9,876		10,352		51,686		51,885		11,679		12,426		9,644		9,749
After ten years	11,198		11,472		140,162		142,345		13,997		14,351		143,157		144,792
Total	$	86,471	$	88,104	$	331,024	$	333,856	$	116,437	$	118,643	$	199,045	$	200,848

Sales of investment securities and gross realized gains and losses are shown in the following table. The sales of the held-to-maturity securities were due to evidence of significant deterioration of the issuers' creditworthiness since purchase.

	Three months ended				Nine months ended
(in thousands)	September 30, 2015		September 30, 2014		September 30, 2015		September 30, 2014
Available-for-sale:
Sales proceeds	$	—	$	413	$	1,559	$	2,435
Gross realized gains	$	—	$	4	$	8	$	4
Gross realized (losses)	$	—	$	—	$	—	$	(15	)
Held-to-maturity:
Sales proceeds	$	1,015	$	—	$	1,015	$	2,146
Gross realized gains	$	72	$	—	$	72	$	104
Gross realized (losses)	$	—	$	—	$	—	$	—

Investment securities carried at $66.0 million and $74.7 million at September 30, 2015 and December 31, 2014, respectively, were pledged to the State of California: $65.2 million and $73.8 million to secure public deposits in compliance with the Local Agency Security Program at September 30, 2015 and December 31, 2014, respectively, and $844 thousand and $856 thousand to provide collateral for trust deposits at September 30, 2015 and December 31, 2014, respectively. In addition, investment securities carried at $1.1 million were pledged to collateralize a Wealth Management and Trust Services (“WMTS”) checking account at both September 30, 2015 and December 31, 2014.

Other-Than-Temporarily Impaired Debt Securities

We have evaluated the credit of our investment securities and their issuers and/or insurers. Based on our evaluation, Management has determined that no investment security in our investment portfolio is other-than-temporarily impaired as of September 30, 2015. We do not have the intent, and it is more likely than not that we will not have to sell securities temporarily impaired at September 30, 2015 before recovery of the cost basis.

Twenty-nine and twenty-eight investment securities were in unrealized loss positions at September 30, 2015 and December 31, 2014, respectively. Those securities are summarized and classified according to the duration of the loss period in the table below:

September 30, 2015	< 12 continuous months					≥ 12 continuous months					Total securities  in a loss position
(in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity
Obligations of state & political subdivisions	$	2,751	$	(5	)	$	—	$	—		$	2,751	$	(5	)
Corporate bonds	5,540		(3		)	—		—			5,540		(3		)
MBS pass-through securities issued by FHLMC and FNMA	2,344		(7		)	—		—			2,344		(7		)
Total held-to-maturity	10,635		(15		)	—		—			10,635		(15		)
Available-for-sale
MBS pass-through securities issued by FHLMC and FNMA	21,640		(38		)	—		—			21,640		(38		)
CMOs issued by FNMA	—		—			3,428		(34		)	3,428		(34		)
CMOs issued by FHLMC	—		—			2,089		(15		)	2,089		(15		)
CMOs issued by GNMA	2,570		(5		)	—		—			2,570		(5		)
Debentures of government- sponsored agencies	—		—			9,949		(51		)	9,949		(51		)
Privately issued CMOs	—		—			379		(2		)	379		(2		)
Obligations of state & political subdivisions	9,867		(39		)	582		(2		)	10,449		(41		)
Total available-for-sale	34,077		(82		)	16,427		(104		)	50,504		(186		)
Total temporarily impaired securities	$	44,712	$	(97	)	$	16,427	$	(104	)	$	61,139	$	(201	)

December 31, 2014	< 12 continuous months					≥ 12 continuous months					Total securities  in a loss position
(dollars in thousands)	Fair value		Unrealized loss			Fair value		Unrealized loss			Fair value		Unrealized loss
Held-to-maturity
Obligations of state & political subdivisions	$	5,830	$	(27	)	$	359	$	(13	)	$	6,189	$	(40	)
Corporate bonds	3,009		(1		)	3,533		(24		)	6,542		(25		)
Total held-to-maturity	8,839		(28		)	3,892		(37		)	12,731		(65		)
Available-for-sale
MBS pass-through securities issued by FHLMC and FNMA	1,960		(11		)	—		—			1,960		(11		)
CMOs issued by FNMA	—		—			4,115		(58		)	4,115		(58		)
CMOs issued by FHLMC	17,157		(44		)	2,291		(43		)	19,448		(87		)
CMOs issued by GNMA	3,262		(16		)	—		—			3,262		(16		)
Debentures of government- sponsored agencies	494		(1		)	9,769		(231		)	10,263		(232		)
Privately issued CMOs	817		(15		)	—		—			817		(15		)
Obligations of state & political subdivisions	2,695		(3		)	1,112		(5		)	3,807		(8		)
Corporate bonds	1,002		(1		)	990		(3		)	1,992		(4		)
Total available-for-sale	27,387		(91		)	18,277		(340		)	45,664		(431		)
Total temporarily impaired securities	$	36,226	$	(119	)	$	22,169	$	(377	)	$	58,395	$	(496	)

As of September 30, 2015, there were six investment positions that had been in a continuous loss position for twelve months or more. These securities consisted of government-sponsored agency debentures, obligations of U.S. state and political subdivisions, and CMOs. We have evaluated each of the bonds and believe that the decline in fair value is primarily driven by factors other than credit. It is probable that we will be able to collect all amounts due according to the contractual terms and no other-than-temporary impairment exists on these securities. The government-sponsored agency debentures and CMOs issued by FNMA and FHLMC are supported by the U.S. Federal Government to protect us from credit losses. The obligations of state and political subdivisions were deemed creditworthy based on our review of the issuers' recent financial information and their insurers, if any. Based upon our assessment of the credit fundamentals and the credit enhancements, we concluded that these securities were not other-than-temporarily impaired at September 30, 2015.

Twenty-three investment securities in our portfolio were in a temporary loss position for less than twelve months as of September 30, 2015. They consisted of U.S. agency CMO and MBS pass-through securities, obligations of U.S. state and political subdivisions, and corporate bonds. We determine that the strength of GNMA through the U.S. Federal Government guarantee is sufficient to protect us from credit losses. Other temporarily impaired securities are deemed creditworthy after internal analysis. Additionally, all are rated as investment grade by at least one major rating agency. As a result of this impairment analysis, we have concluded that these securities were not other-than-temporarily impaired at September 30, 2015.

Non-Marketable Securities

As a member of the FHLB, we are required to maintain a minimum investment in the FHLB capital stock determined by the Board of Directors of the FHLB. The minimum investment requirements can increase in the event we increase our total asset size or borrowings with the FHLB. Shares cannot be purchased or sold except between the FHLB and its members at the $100 per share par value. We held $8.4 million and $8.2 million of FHLB stock recorded at cost in other assets on the consolidated statements of condition at September 30, 2015 and December 31, 2014, respectively. The carrying amounts of these investments are reasonable estimates of fair value because the securities are restricted to member banks and they do not have a readily determinable market value. Management does not believe that the FHLB stock is other-than-temporarily-impaired, as we expect to be able to redeem this stock at cost.

On October 28, 2015, FHLB announced a cash dividend for the third quarter of 2015 at an annualized dividend rate of 8.79% to be distributed in mid November. Cash dividends paid on FHLB capital stock are recorded as non-interest income.

As a member bank of Visa U.S.A., we hold 16,939 shares of Visa Inc. Class B common stock with a carrying value of zero, which is equal to our cost basis. These shares are restricted from resale until their conversion into Class A (voting) shares upon the termination of Visa Inc.'s covered litigation escrow account. As a result of the restriction, these shares are not considered available-for-sale and are not carried at fair value. When converting this Class B common stock to Class A common stock under the current conversion rate of 1.6483 and the closing stock price of Class A shares, the value of our shares of Class B common stock would have been $1.9 million at September 30, 2015 and $1.8 million at December 31, 2014. The conversion rate is subject to further reduction upon the final settlement of the covered litigation against Visa Inc. and its member banks. See Note 8 herein.

We invest in low income housing tax credit funds as a limited partner, which totaled $2.7 million and $1.8 million recorded in other assets as of September 30, 2015 and December 31, 2014, respectively. In the first nine months of 2015, we recognized $169 thousand of low income housing tax credits and other tax benefits, net of $131 thousand of amortization expense of low income housing tax credit investment, as a component of income tax expense. As of September 30, 2015, our unfunded commitments for these low income housing tax credit funds totaled $1.8 million. We did not recognize any impairment losses on these low income housing tax credit investments during the first nine months of 2015, or the year ended December 31, 2014.

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Fair Value of Assets and Liabilities - Recorded on Nonrecurring Basis (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans, installment and other consumer	$ 21,477	$ 25,223
Specific valuation allowance for impaired loans	$ 1,188	1,138
Discount rate for selling costs applied to all properties	6.00%
Changed in estimated value of OREO	$ 40
Consumer loans | Consumer loan
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans, installment and other consumer		77
Specific valuation allowance for impaired loans		26
Financial instruments at fair value measured on a nonrecurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	0	0
Financial instruments at fair value measured on a nonrecurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Consumer loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans, installment and other consumer		0
Financial instruments at fair value measured on a nonrecurring basis | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	0	0
Financial instruments at fair value measured on a nonrecurring basis | Significant Other Observable Inputs (Level 2) | Consumer loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans, installment and other consumer		0
Financial instruments at fair value measured on a nonrecurring basis | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	421	461
Financial instruments at fair value measured on a nonrecurring basis | Significant Unobservable Inputs (Level 3) | Consumer loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans, installment and other consumer		77
Financial instruments at fair value measured on a nonrecurring basis | Carrying Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate	$ 421	461
Financial instruments at fair value measured on a nonrecurring basis | Carrying Value | Consumer loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans, installment and other consumer		$ 77

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Loans and Allowance for Loan Losses - Impaired Loans and Related Allowance (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Recorded investment in impaired loans:
With no specific allowance recorded	$ 11,935		$ 11,935		$ 16,464
With a specific allowance recorded	9,542		9,542		8,759
Total recorded investment in impaired loans	21,477		21,477		25,223
Unpaid principal balance of impaired loans:
With no specific allowance recorded	13,923		13,923		22,677
With a specific allowance recorded	9,719		9,719		9,028
Total unpaid principal balance of impaired loans	23,642		23,642		31,705
Specific valuation	1,188		1,188		1,138
Average recorded investment in impaired loans during the period	22,390	$ 26,186	23,921	$ 25,884	25,909
Interest income recognized on impaired loans during the period ended	217	210	602	743	948
Charged-off portion of impaired loans	2,700		2,700
Outstanding commitments to extend credit on impaired loans	857		857		1,400
Commercial loans | Commercial and industrial
Recorded investment in impaired loans:
With no specific allowance recorded	2,108		2,108		1,141
With a specific allowance recorded	2,343		2,343		2,443
Total recorded investment in impaired loans	4,451		4,451		3,584
Unpaid principal balance of impaired loans:
With no specific allowance recorded	2,105		2,105		1,186
With a specific allowance recorded	2,398		2,398		2,524
Total unpaid principal balance of impaired loans	4,503		4,503		3,710
Specific valuation	935		935		694
Average recorded investment in impaired loans during the period	4,473	5,292	4,121	5,818	5,354
Interest income recognized on impaired loans during the period ended	58	88	176	309	378
Commercial real estate loans | Commercial real estate, owner-occupied
Recorded investment in impaired loans:
With no specific allowance recorded	2,882		2,882		5,577
With a specific allowance recorded	4,111		4,111		2,882
Total recorded investment in impaired loans	6,993		6,993		8,459
Unpaid principal balance of impaired loans:
With no specific allowance recorded	2,882		2,882		6,577
With a specific allowance recorded	4,111		4,111		2,882
Total unpaid principal balance of impaired loans	6,993		6,993		9,459
Specific valuation	55		55		65
Average recorded investment in impaired loans during the period	7,695	6,982	8,183	5,980	6,604
Interest income recognized on impaired loans during the period ended	84	54	228	220	288
Commercial real estate loans | Commercial real estate, investor
Recorded investment in impaired loans:
With no specific allowance recorded	2,537		2,537		2,954
With a specific allowance recorded	217		217		0
Total recorded investment in impaired loans	2,754		2,754		2,954
Unpaid principal balance of impaired loans:
With no specific allowance recorded	4,528		4,528		4,945
With a specific allowance recorded	217		217		0
Total unpaid principal balance of impaired loans	4,745		4,745		4,945
Specific valuation	0		0		0
Average recorded investment in impaired loans during the period	2,886	3,090	2,916	3,186	3,138
Interest income recognized on impaired loans during the period ended	10	7	24	21	28
Commercial real estate loans | Construction
Recorded investment in impaired loans:
With no specific allowance recorded	2,688		2,688		5,134
With a specific allowance recorded	552		552		561
Total recorded investment in impaired loans	3,240		3,240		5,695
Unpaid principal balance of impaired loans:
With no specific allowance recorded	2,688		2,688		7,824
With a specific allowance recorded	674		674		749
Total unpaid principal balance of impaired loans	3,362		3,362		8,573
Specific valuation	3		3		3
Average recorded investment in impaired loans during the period	3,262	6,678	4,473	6,568	6,471
Interest income recognized on impaired loans during the period ended	22	23	40	67	85
Residential loans | Home equity
Recorded investment in impaired loans:
With no specific allowance recorded	171		171		393
With a specific allowance recorded	391		391		300
Total recorded investment in impaired loans	562		562		693
Unpaid principal balance of impaired loans:
With no specific allowance recorded	171		171		880
With a specific allowance recorded	391		391		300
Total unpaid principal balance of impaired loans	562		562		1,180
Specific valuation	3		3		0
Average recorded investment in impaired loans during the period	610	857	616	730	741
Interest income recognized on impaired loans during the period ended	5	5	14	14	19
Residential loans | Other residential
Recorded investment in impaired loans:
With no specific allowance recorded	1,220		1,220		1,026
With a specific allowance recorded	800		800		1,019
Total recorded investment in impaired loans	2,020		2,020		2,045
Unpaid principal balance of impaired loans:
With no specific allowance recorded	1,220		1,220		1,026
With a specific allowance recorded	800		800		1,019
Total unpaid principal balance of impaired loans	2,020		2,020		2,045
Specific valuation	71		71		92
Average recorded investment in impaired loans during the period	2,025	1,440	2,033	1,726	1,744
Interest income recognized on impaired loans during the period ended	23	14	69	56	74
Consumer loans | Installment and other consumer
Recorded investment in impaired loans:
With no specific allowance recorded	329		329		239
With a specific allowance recorded	1,128		1,128		1,554
Total recorded investment in impaired loans	1,457		1,457		1,793
Unpaid principal balance of impaired loans:
With no specific allowance recorded	329		329		239
With a specific allowance recorded	1,128		1,128		1,554
Total unpaid principal balance of impaired loans	1,457		1,457		1,793
Specific valuation	121		121		284
Average recorded investment in impaired loans during the period	1,439	1,847	1,579	1,876	1,857
Interest income recognized on impaired loans during the period ended	$ 15	$ 19	$ 51	$ 56	$ 76

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Loans and Allowance for Loan Losses (Tables)

9 Months Ended

Sep. 30, 2015

Receivables [Abstract]

Past Due Financing Receivables

Past due and non-accrual loans by class as of September 30, 2015 and December 31, 2014 were as follows:

(dollars in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential 1		Installment and other consumer		Total
September 30, 2015
30-59 days past due	$	1,780	$	139	$	421	$	—	$	862	$	—	$	7	$	3,209
60-89 days past due	150		—		—		—		99		—		2		251
90 days or more past due	21		—		—		—		100		—		72		193
Total past due	1,951		139		421		—		1,061		—		81		3,653
Current	188,016		239,196		671,256		54,921		112,670		71,682		21,806		1,359,547
Total loans 3	$	189,967	$	239,335	$	671,677	$	54,921	$	113,731	$	71,682	$	21,887	$	1,363,200
Non-accrual 2	354		—		2,020		2		172		—		90		2,638
December 31, 2014
30-59 days past due	$	183	$	—	$	—	$	—	$	646	$	—	$	180	$	1,009
Non-accrual 2	—		1,403		2,429		5,134		280		—		104		9,350
Total past due	183		1,403		2,429		5,134		926		—		284		10,359
Current	210,040		229,202		671,070		43,279		109,862		73,035		16,504		1,352,992
Total loans 3	$	210,223	$	230,605	$	673,499	$	48,413	$	110,788	$	73,035	$	16,788	$	1,363,351

¹ Our residential loan portfolio does not include sub-prime loans, nor is it our practice to underwrite loans commonly referred to as "Alt-A mortgages", the characteristics of which are loans lacking full documentation, borrowers having low FICO scores or higher loan-to-value ratios.

² Amounts include $2 thousand of Purchased Credit Impaired ("PCI") loans that had stopped accreting interest at September 30, 2015 and $1.4 millionatDecember 31, 2014. Amounts exclude accreting PCI loans of $3.7 million and $3.8 million at September 30, 2015 and December 31, 2014, respectively, as we have a reasonable expectation about future cash flows to be collected and we continue to recognize accretable yield on these loans in interest income. These accreting PCI loans are included in current loans.

³ Amounts include net deferred loan costs of $861 thousand and $487 thousand at September 30, 2015 and December 31, 2014, respectively. Amounts are also net of unaccreted purchase discounts on non-PCI loans of $3.4 million and $4.4 million at September 30, 2015 and December 31, 2014, respectively.

Financing Receivable Credit Quality Indicators

The following table represents an analysis of loans by internally assigned grades, including the PCI loans, at September 30, 2015 and December 31, 2014:

(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Purchased credit-impaired		Total
Credit Risk Profile by Internally Assigned Grade:
September 30, 2015
Pass	$	166,622	$	216,017	$	662,858	$	51,680	$	111,020	$	71,596	$	21,544	$	3,249	$	1,304,586
Special Mention	18,288		12,445		2,438		—		1,419		—		—		—		34,590
Substandard	4,873		9,184		4,651		3,238		1,224		86		343		425		24,024
Total loans	$	189,783	$	237,646	$	669,947	$	54,918	$	113,663	$	71,682	$	21,887	$	3,674	$	1,363,200
December 31, 2014
Pass	$	197,659	$	205,820	$	651,548	$	41,710	$	107,933	$	70,987	$	16,101	$	2,210	$	1,293,968
Special Mention	6,776		10,406		13,304		1,008		322		—		190		1,140		33,146
Substandard	5,464		11,763		6,473		5,684		2,466		2,048		497		1,842		36,237
Total loans	$	209,899	$	227,989	$	671,325	$	48,402	$	110,721	$	73,035	$	16,788	$	5,192	$	1,363,351

Troubled Debt Restructurings on Financing Receivables

The table below summarizes outstanding TDR loans by loan class as of September 30, 2015 and December 31, 2014. The summary includes both TDRs that are on non-accrual status and those that continue to accrue interest.

(in thousands)	As of
Recorded investment in Troubled Debt Restructurings 1	September 30, 2015		December 31, 2014
Commercial and industrial	$	4,098	$	3,584
Commercial real estate, owner-occupied	6,993		8,459
Commercial real estate, investor	733		524
Construction 2	3,238		5,684
Home equity	463		694
Other residential	2,020		2,045
Installment and other consumer	1,367		1,713
Total	$	18,912	$	22,703

¹ Includes $18.8 million and $15.9 million of TDR loans that were accruing interest as of September 30, 2015 and December 31, 2014, respectively. Includes $147 thousand and $1.8 million of acquired loans at September 30, 2015 and December 31, 2014, respectively.

²In June 2015,one TDR loan was transferred to loans held-for-sale at fair value totaling $1.5 million, net of an $839 thousand charge-off to the allowance for loan losses. The loan was subsequently sold in June 2015 for no gain or loss.

The table below presents the following information for loans modified in a TDR during the presented periods: number of contracts modified, the recorded investment in the loans prior to modification, and the recorded investment in the loans after being restructured. The table below excludes fully paid-off and fully charged-off TDR loans.

(dollars in thousands)	Number of Contracts Modified	Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment at period end
Troubled Debt Restructurings during the three months ended September 30, 2015:
Commercial and industrial	1	$	700	$	700	$	700
Total	1	$	700	$	700	$	700
Troubled Debt Restructurings during the three months ended September 30, 2014:
Commercial and industrial	2	$	513	$	596	$	596
Commercial real estate, owner occupied	1	4,226		4,216		4,206
Commercial real estate, investor	1	74		74		74
Construction	1	815		814		814
Total	5	$	5,628	$	5,700	$	5,690

Troubled Debt Restructurings during the nine months ended September 30, 2015:
Commercial and industrial	5	$	1,482	$	1,582	$	1,463
Commercial real estate, investor	1	222		221		217
Total	6	$	1,704	$	1,803	$	1,680
Troubled Debt Restructurings during the nine months ended September 30, 2014:
Commercial and industrial 1	7	$	1,336	$	1,460	$	1,431
Commercial real estate, owner-occupied	1	4,226		4,216		4,206
Other residential	1	815		814		814
Home equity	2	224		224		222
Installment and other consumer	6	281		278		270
Total	17	$	6,882	$	6,992	$	6,943

¹ Excludes one contract modified and subsequently paid off during the nine months ended September 30, 2014 in the amount of $905 thousand pre-modification and post-modification.

Impaired Financing Receivables

The tables below summarize information on impaired loans and their related allowance. Total impaired loans include non-accrual loans, accruing TDR loans and accreting PCI loans that have experienced post-acquisition declines in cash flows expected to be collected.

(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Total
September 30, 2015
Recorded investment in impaired loans:
With no specific allowance recorded	$	2,108	$	2,882	$	2,537	$	2,688	$	171	$	1,220	$	329	$	11,935
With a specific allowance recorded	2,343		4,111		217		552		391		800		1,128		9,542
Total recorded investment in impaired loans	$	4,451	$	6,993	$	2,754	$	3,240	$	562	$	2,020	$	1,457	$	21,477
Unpaid principal balance of impaired loans:
With no specific allowance recorded	$	2,105	$	2,882	$	4,528	$	2,688	$	171	$	1,220	$	329	$	13,923
With a specific allowance recorded	2,398		4,111		217		674		391		800		1,128		9,719
Total unpaid principal balance of impaired loans	$	4,503	$	6,993	$	4,745	$	3,362	$	562	$	2,020	$	1,457	$	23,642
Specific allowance	$	935	$	55	$	—	$	3	$	3	$	71	$	121	$	1,188
Average recorded investment in impaired loans during the quarter ended September 30, 2015	$	4,473	$	7,695	$	2,886	$	3,262	$	610	$	2,025	$	1,439	$	22,390
Interest income recognized on impaired loans during the quarter ended September 30, 2015	$	58	$	84	$	10	$	22	$	5	$	23	$	15	$	217
Average recorded investment in impaired loans during the nine months ended September 30, 2015	$	4,121	$	8,183	$	2,916	$	4,473	$	616	$	2,033	$	1,579	$	23,921
Interest income recognized on impaired loans during the nine months ended September 30, 2015	$	176	$	228	$	24	$	40	$	14	$	69	$	51	$	602
Average recorded investment in impaired loans during the quarter ended September 30, 2014	$	5,292	$	6,982	$	3,090	$	6,678	$	857	$	1,440	$	1,847	$	26,186
Interest income recognized on impaired loans during the quarter ended September 30, 2014	$	88	$	54	$	7	$	23	$	5	$	14	$	19	$	210
Average recorded investment in impaired loans during the nine months ended September 30, 2014	$	5,818	$	5,980	$	3,186	$	6,568	$	730	$	1,726	$	1,876	$	25,884
Interest income recognized on impaired loans during the nine months ended September 30, 2014	$	309	$	220	$	21	$	67	$	14	$	56	$	56	$	743

(in thousands)	Commercial and industrial		Commercial real estate, owner-occupied		Commercial real estate, investor		Construction		Home equity		Other residential		Installment and other consumer		Total
December 31, 2014
Recorded investment in impaired loans:
With no specific allowance recorded	$	1,141	$	5,577	$	2,954	$	5,134	$	393	$	1,026	$	239	$	16,464
With a specific allowance recorded	2,443		2,882		—		561		300		1,019		1,554		$	8,759
Total recorded investment in impaired loans	$	3,584	$	8,459	$	2,954	$	5,695	$	693	$	2,045	$	1,793	$	25,223
Unpaid principal balance of impaired loans:
With no specific allowance recorded	$	1,186	$	6,577	$	4,945	$	7,824	$	880	$	1,026	$	239	$	22,677
With a specific allowance recorded	2,524		2,882		—		749		300		1,019		1,554		9,028
Total unpaid principal balance of impaired loans	$	3,710	$	9,459	$	4,945	$	8,573	$	1,180	$	2,045	$	1,793	$	31,705
Specific allowance	$	694	$	65	$	—	$	3	$	—	$	92	$	284	$	1,138
Average recorded investment in impaired loans during 2014	5,354		6,604		3,138		6,471		741		1,744		1,857		25,909
Interest income recognized on impaired loans during 2014	378		288		28		85		19		74		76		948

Allowance for Credit Losses on Financing Receivables

The following tables disclose loans by major portfolio category and activity in the ALLL, as well as the related ALLL disaggregated by impairment evaluation method.

Allowance for Loan Losses Rollforward for the Period
(in thousands)	Commercial and industrial			Commercial real estate, owner-occupied		Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated			Total
For the three months ended September 30, 2015
Allowance for loan losses:
Beginning balance	$	2,540		$	2,052	$	5,944		$	535		$	843		$	435		$	444		$	1,561		$	14,354
Provision (reversal)	86			17		128			158			9			(50		)	32			(380		)	—
Charge-offs	(2		)	—		—			—			—			—			(1		)	—			(3		)
Recoveries	92			—		12			—			1			—			1			—			106
Ending balance	$	2,716		$	2,069	$	6,084		$	693		$	853		$	385		$	476		$	1,181		$	14,457
For the nine months ended September 30, 2015
Allowance for loan losses:
Beginning balance	$	2,837		$	1,924	$	6,672		$	839		$	859		$	433		$	566		$	969		$	15,099
Provision (reversal)	(306		)	145		(606		)	693			(9		)	(48		)	(81		)	212			—
Charge-offs	(5		)	—		—			(839		)	—			—			(12		)	—			(856		)
Recoveries	190			—		18			—			3			—			3			—			214
Ending balance	$	2,716		$	2,069	$	6,084		$	693		$	853		$	385		$	476		$	1,181		$	14,457

Allowance for Loan Losses Rollforward for the Period
(in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
For the three months ended September 30, 2014
Allowance for loan losses:
Beginning balance	$	3,125		$	1,979		$	6,713		$	571		$	944		$	454		$	481		$	633	$	14,900
Provision (reversal)	(263		)	9			(26		)	(33		)	(18		)	(8		)	90			249		—
Charge-offs	—			—			—			—			—			—			(2		)	—		(2		)
Recoveries	44			5			5			96			1			—			—			—		151
Ending balance	$	2,906		$	1,993		$	6,692		$	634		$	927		$	446		$	569		$	882	$	15,049
For the nine months ended September 30, 2014
Allowance for loan losses:
Beginning balance	$	3,056		$	2,012		$	6,196		$	633		$	875		$	317		$	629		$	506	$	14,224
Provision (reversal)	(208		)	(24		)	455			109			49			129			(136		)	376		750
Charge-offs	(66		)	—			—			(204		)	—			—			(6		)	—		(276		)
Recoveries	124			5			41			96			3			—			82			—		351
Ending balance	$	2,906		$	1,993		$	6,692		$	634		$	927		$	446		$	569		$	882	$	15,049

Allowance for Loan Losses and Recorded Investment in Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
As of September 30, 2015:
Ending ALLL related to loans collectively evaluated for impairment	$	1,781		$	2,013		$	6,084		$	691		$	850		$	314		$	355		$	1,181	$	13,269
Ending ALLL related to loans  individually evaluated for impairment	$	928		$	56		$	—		$	—		$	3		$	71		$	121		$	—	$	1,179
Ending ALLL related to purchased  credit-impaired loans	$	7		$	—		$	—		$	2		$	—		$	—		$	—		$	—	$	9
Total	$	2,716		$	2,069		$	6,084		$	693		$	853		$	385		$	476		$	1,181	$	14,457
Loans outstanding:
Collectively evaluated for impairment	$	185,478		$	230,653		$	667,192		$	51,681		$	113,101		$	69,662		$	20,430		$	—	$	1,338,197
Individually evaluated for impairment1	4,305			6,993			2,754			3,238			562			2,020			1,457			—		21,329
Purchased credit-impaired	184			1,689			1,731			2			68			—			—			—		3,674
Total	$	189,967		$	239,335		$	671,677		$	54,921		$	113,731		$	71,682		$	21,887		$	—	$	1,363,200
Ratio of allowance for loan losses to total loans	1.43		%	0.86		%	0.91		%	1.26		%	0.75		%	0.54		%	2.17		%	NM		1.06		%
Allowance for loan losses to non-accrual loans	767		%	NM			301		%	347		%	496		%	NM			481		%	NM		548		%

¹ Total excludes $147 thousand of PCI loans that have experienced post-acquisition declines in cash flows expected to be collected. These loans are included in the "purchased credit-impaired" amount in the next line below.

NM - Not Meaningful

Allowance for Loan Losses and Recorded Investment in Loans
(dollars in thousands)	Commercial and industrial			Commercial real estate, owner-occupied			Commercial real estate, investor			Construction			Home equity			Other residential			Installment and other consumer			Unallocated		Total
As of December 31, 2014:
Ending ALLL related to loans collectively evaluated for impairment	$	2,143		$	1,859		$	6,672		$	836		$	859		$	341		$	282		$	969	$	13,961
Ending ALLL related to loans  individually evaluated for impairment	$	690		$	65		$	—		$	—		$	—		$	92		$	284		$	—	$	1,131
Ending ALLL related to purchased  credit-impaired loans	$	4		$	—		$	—		$	3		$	—		$	—		$	—		$	—	$	7
Total	$	2,837		$	1,924		$	6,672		$	839		$	859		$	433		$	566		$	969	$	15,099
Loans outstanding:
Collectively evaluated for impairment	$	206,603		$	220,933		$	668,371		$	42,718		$	110,028		$	70,990		$	14,995		$	—	$	1,334,638
Individually evaluated for impairment1	3,296			7,056			2,954			5,684			693			2,045			1,793			—		23,521
Purchased credit-impaired	324			2,616			2,174			11			67			—			—			—		5,192
Total	$	210,223		$	230,605		$	673,499		$	48,413		$	110,788		$	73,035		$	16,788		$	—	$	1,363,351
Ratio of allowance for loan losses to total loans	1.35		%	0.83		%	0.99		%	1.73		%	0.78		%	0.59		%	3.37		%	NM		1.11		%
Allowance for loan losses to non-accrual loans	NM			137		%	275		%	16		%	307		%	NM			544		%	NM		161		%

¹ Total excludes $1.7 million PCI loans that have experienced credit deterioration post-acquisition, which are included in the "purchased credit-impaired" amount in the next line below.

NM - Not Meaningful

Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period

The following table reflects the outstanding balance and related carrying value of PCI loans as of September 30, 2015andDecember 31, 2014.

	September 30, 2015				December 31, 2014
PCI Loans (in thousands)	Unpaid principal balance		Carrying value		Unpaid principal balance		Carrying value
Commercial and industrial	$	258	$	184	$	479	$	324
Commercial real estate	4,355		3,420		6,831		4,790
Construction	125		2		136		11
Home equity	227		68		232		67
Total purchased credit-impaired loans	$	4,965	$	3,674	$	7,678	$	5,192

Accretable Yield Activity

The activities in the accretable yield, or income expected to be earned, for PCI loans were as follows:

Accretable Yield	Three months ended						Nine months ended
(dollars in thousands)	September 30, 2015			September 30, 2014			September 30, 2015			September 30, 2014
Balance at beginning of period	$	3,711		$	4,514		$	4,027		$	3,649
Removals 1	(837		)	—			(914		)	(273		)
Accretion	(128		)	(126		)	(367		)	(494		)
Reclassifications from nonaccretable difference 2	—			(242		)	—			1,264
Balance at end of period	$	2,746		$	4,146		$	2,746		$	4,146

¹ Represents the accretable difference that is relieved when a loan exits the PCI population due to pay-off, full charge-off, or transfer to repossessed assets, etc.

² Primarily relates to changes in expected credit performance and changes in expected timing of cash flows.