10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended June 30, 2021.

or

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

Commission file number: 0-15752

CENTURY BANCORP, INC.

(Exact name of registrant as specified in its charter)

COMMONWEALTH OF MASSACHUSETTS	04-2498617
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
400 MYSTIC AVENUE, MEDFORD, MA	02155
(Address of principal executive offices)	(Zip Code)

(781) 391-4000

(Registrant’s telephone number, including area code)

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

Title of class	Trading Symbol(s)	Name of exchange
Class A Common Stock, $1.00 par value	CNBKA	Nasdaq Global Market

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

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files).    ☒  Yes    ☐  No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

(Check one):

Large accelerated filer	☐	Accelerated filer	☒
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    ☐  Yes    ☒  No

As of July 31, 2021, the Registrant had outstanding:

Class A Common Stock, $1.00 par value	3,661,569 Shares
Class B Common Stock, $1.00 par value	1,906,340 Shares

Century Bancorp, Inc.

Index

		Page Number
Part I	Financial Information Forward Looking Statements		3
Item 1.	Financial Statements (unaudited)
	Consolidated Balance Sheets: June 30, 2021 and December 31, 2020		4
	Consolidated Statements of Income: Three Months and Six Months Ended June 30, 2021 and 2020		5
	Consolidated Statements of Comprehensive Income: Three Months and Six Months Ended June 30, 2021 and 2020		6
	Consolidated Statements of Changes in Stockholders’ Equity: Three Months Ended June 30, 2021 and 2020		7
	Consolidated Statements of Changes in Stockholders’ Equity: Six Months Ended June 30, 2021 and 2020		8
	Consolidated Statements of Cash Flows: Six Months Ended June 30, 2021 and 2020		9
	Notes to Consolidated Financial Statements		10 - 33
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		34 - 46
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		47
Item 4.	Controls and Procedures		47
Part II.	Other Information
Item 1.	Legal Proceedings		47
Item 1A.	Risk Factors		47
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		47
Item 3.	Defaults Upon Senior Securities		47
Item 4.	Mine Safety Disclosures		47
Item 5.	Other Information		47
Item 6.	Exhibits		47-48
Signatures			49
Exhibits	Ex-31.1
	Ex-31.2
	Ex-32.1
	Ex-32.2
	Ex-101 Instance Document
	Ex-101 Schema Document
	Ex-101 Calculation Linkbase Document
	Ex-101 Labels Linkbase Document
	Ex-101 Presentation Linkbase Document
	Ex-101 Definition Linkbase Document

Forward Looking Statements

Except for the historical information contained herein, this quarterly report on Form 10-Q may contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 as amended and Section 21E of the Securities Exchange Act of 1934 as amended. Investors are cautioned that forward-looking statements are inherently uncertain. Actual performance and results of operations may differ materially from those projected or suggested in the forward-looking statements due to certain risks and uncertainties, including, without limitation, (i) the fact that the Company’s business, financial condition and results of operation have been or may be negatively impacted by the extent and duration of the COVID-19 pandemic, (ii) the fact that consumer behavior may change due to changing political, business and economic conditions, including increased unemployment, or legislative or regulatory initiatives, (iii) the fact that the Company’s success is dependent to a significant extent upon general economic conditions in New England, (iv) the fact that the Company’s earnings depend to a great extent upon the level of net interest income (the difference between interest income earned on loans and investments and the interest expense paid on deposits and other borrowings) generated by the Bank and thus the Bank’s results of operations may be adversely affected by increases or decreases in interest rates, (v) the timing of the proposed merger with Eastern Bankshares, Inc. (“Eastern”), (vi) the risk that a condition to closing of the proposed merger may not be satisfied, (vii) the risk that a regulatory approval that may be required for the proposed merger is not obtained or is obtained subject to conditions that are not anticipated, (viii) the effect of the announcement of the proposed merger on our ability to maintain relationships with our key partners, customers and employees, and on our operating results and business generally, (ix) the fact that the Bank’s participation in the Paycheck Protection Program involves reputational risks, (x) the fact that the banking business is highly competitive and the profitability of the Company depends upon the Bank’s ability to attract loans and deposits within its market area, where the Bank competes with a variety of traditional banking and other institutions such as credit unions and finance companies, (xi) the fact that our operations are subject to risks including, but not limited to, cybersecurity incidents, fraud, natural disasters and future pandemics, (xii) the fact that future credit losses may be higher than currently expected due to changes in economic assumptions and adverse economic developments, and (xiii) the fact that a significant portion of the Company’s loan portfolio is comprised of commercial loans, exposing the Company to the risks inherent in loans based upon analyses of credit risk, the value of underlying collateral, including real estate, and other more intangible factors, which are considered in making commercial loans. Accordingly, the Company’s profitability may be negatively impacted by errors in risk analyses, and by loan defaults, and the ability of certain borrowers to repay such loans may be adversely affected by any downturn in general economic conditions, these factors, as well as general economic and market conditions, may materially and adversely affect the market price of shares of the Company’s common stock. Because of these and other factors, past financial performance should not be considered an indicator of future performance. You should not place undue reliance on our forward-looking statements. You should exercise caution in interpreting and relying on forward-looking statements because they are subject to significant risks, uncertainties and other factors which are, in some cases, beyond the Company’s control. The forward-looking statements contained herein represent the Company’s judgment as of the date of this quarterly report on from 10-Q, and the Company cautions readers not to place undue reliance on such statements.

Page 3 of 49

PART I – Item 1

Century Bancorp, Inc.

Consolidated Balance Sheets (unaudited)

(In thousands, except share data)

	June 30, 2021			December 31, 2020
Assets
Cash and due from banks	$	101,001		$	136,735
Federal funds sold and interest-bearing deposits in other banks		384,454			237,265
Total cash and cash equivalents		485,455			374,000
Securities available-for-sale, amortized cost $230,285 and $282,273, respectively		232,033			282,448
Securities held-to-maturity, fair value $3,360,731 and $2,579,103, respectively		3,350,561			2,509,088
Federal Home Loan Bank of Boston, stock at cost		11,594			13,361
Equity securities, amortized cost $1,635 and $1,635, respectively		1,697			1,668
Loans, net:
Construction and land development		6,404			10,909
Commercial and industrial		1,296,399			1,314,245
Municipal		138,771			137,607
Commercial real estate		813,163			789,836
Residential real estate		471,671			448,436
Consumer and overdrafts		20,611			20,439
Home equity		252,114			274,357
Total loans, net		2,999,133			2,995,829
Less: allowance for loan losses		34,949			35,486
Net loans		2,964,184			2,960,343
Bank premises and equipment		40,824			39,062
Accrued interest receivable		13,122			13,283
Goodwill		2,714			2,714
Other assets		161,830			162,867
Total assets	$	7,264,014		$	6,358,834
Liabilities
Deposits:
Demand deposits	$	1,183,266		$	1,103,878
Savings and NOW deposits		2,454,287			1,728,092
Money market accounts		2,302,147			2,074,108
Time deposits		433,479			546,143
Total deposits		6,373,179			5,452,221
Securities sold under agreements to repurchase		248,302			232,090
Other borrowed funds		119,029			177,009
Subordinated debentures		36,083			36,083
Due to broker		800			—
Other liabilities		94,066			91,022
Total liabilities		6,871,459			5,988,425
Stockholders’ Equity
Preferred Stock – $1.00 par value; 100,000 shares authorized; no shares issued and outstanding		—			—
Common stock, Class A, $1.00 par value per share; authorized 10,000,000 shares; issued 3,661,569 shares and 3,655,469 shares, respectively		3,662			3,656
Common stock, Class B, $1.00 par value per share; authorized 5,000,000 shares; issued 1,906,340 shares and 1,912,440 shares respectively		1,906			1,912
Additional paid-in capital		12,292			12,292
Retained earnings		398,630			378,699
	416,490			396,559
Unrealized gains on securities available-for-sale, net of taxes		1,270			130
Unrealized losses on securities transferred to held-to-maturity, net of taxes		(958	)		(1,221	)
Pension liability, net of taxes		(24,247	)		(25,059	)
Total accumulated other comprehensive loss, net of taxes		(23,935	)		(26,150	)
Total stockholders’ equity		392,555			370,409
Total liabilities and stockholders’ equity	$	7,264,014		$	6,358,834

See accompanying notes to unaudited consolidated interim financial statements.

Page 4 of 49

Century Bancorp, Inc.

Consolidated Statements of Income (unaudited)

(In thousands, except share data)

	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021			2020
Interest income
Loans	$	20,888	$	19,848	$	42,493		$	42,047
Securities held-to-maturity		14,113		15,222		27,230			30,515
Securities available-for-sale		557		982		1,187			2,675
Federal funds sold and interest-bearing deposits in other banks		112		68		291			678
Total interest income		35,670		36,120		71,201			75,915
Interest expense
Savings and NOW deposits		753		2,118		1,871			5,843
Money market accounts		2,489		3,462		5,375			9,034
Time deposits		1,115		3,111		2,696			6,283
Securities sold under agreements to repurchase		98		309		239			935
Other borrowed funds and subordinated debentures		1,224		1,302		2,462			2,801
Total interest expense		5,679		10,302		12,643			24,896
Net interest income		29,991		25,818		58,558			51,019
(Credit) provision for loan losses		—		1,700		(550	)		2,775
Net interest income after (credit) provision for loan losses		29,991		24,118		59,108			48,244
Other operating income
Service charges on deposit accounts		2,171		2,023		4,389			4,319
Lockbox fees		966		924		1,962			1,854
Other income		969		1,094		1,958			2,178
Total other operating income		4,106		4,041		8,309			8,351
Operating expenses
Salaries and employee benefits		12,302		10,287		24,552			21,658
Occupancy		1,591		1,456		3,293			2,971
Equipment		931		962		1,880			1,799
FDIC Assessments		757		310		1,229			310
Other		5,431		4,027		10,929			8,477
Total operating expenses		21,012		17,042		41,883			35,215
Income before income taxes		13,085		11,117		25,534			21,380
Provision for income taxes		2,262		1,061		3,941			1,658
Net income	$	10,823	$	10,056	$	21,593		$	19,722
Share data:
Weighted average number of shares outstanding, basic
Class A		3,661,569		3,652,469		3,659,019			3,652,409
Class B		1,906,340		1,915,440		1,908,890			1,915,500
Weighted average number of shares outstanding, diluted
Class A		5,567,909		5,567,909		5,567,909			5,567,909
Class B		1,906,340		1,915,440		1,908,890			1,915,500
Basic earnings per share:
Class A	$	2.35	$	2.18	$	4.68		$	4.28
Class B	$	1.17	$	1.09	$	2.34		$	2.14
Diluted earnings per share
Class A	$	1.94	$	1.81	$	3.88		$	3.54
Class B	$	1.17	$	1.09	$	2.34		$	2.14

See accompanying notes to unaudited consolidated interim financial statements.

Page 5 of 49

Century Bancorp, Inc.

Consolidated Statements of Comprehensive Income (unaudited)

(In thousands)

	Three months ended June 30,
	2021		2020
Net income	$	10,823	$	10,056
Other comprehensive income, net of tax:
Unrealized gains on securities:
Unrealized gains arising during period		676		1,490
Less: reclassification adjustment for gains included in net income		—		—
Total unrealized gains on securities		676		1,490
Accretion of net unrealized losses transferred		149		162
Defined benefit pension plans:
Amortization of prior service cost and loss included in net periodic benefit cost		406		361
Other comprehensive income		1,231		2,013
Comprehensive income	$	12,054	$	12,069
	Six months ended June 30,
	2021		2020
Net income	$	21,593	$	19,722
Other comprehensive income, net of tax:
Unrealized gains (losses) on securities:
Unrealized gains (losses) arising during period		1,140		(41	)
Less: reclassification adjustment for gains included in net income		—		—
Total unrealized gains (losses) on securities		1,140		(41	)
Accretion of net unrealized losses transferred		263		326
Defined benefit pension plans:
Amortization of prior service cost and loss included in net periodic benefit cost		812		721
Other comprehensive income		2,215		1,006
Comprehensive income	$	23,808	$	20,728

See accompanying notes to unaudited consolidated interim financial statements.

Page 6 of 49

Century Bancorp, Inc.

Consolidated Statements of Changes in Stockholders’ Equity (unaudited)

For the Three Months Ended June 30, 2021 and 2020

	Class A Common Stock		Class B Common Stock			Additional Paid-In Capital		Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Total Stockholders’ Equity
						(In thousands)
Balance at March 31, 2020	$	3,652	$	1,916		$	12,292	$	348,093		$	(25,266	)	$	340,687
Net income		—		—			—		10,056			—			10,056
Other comprehensive income, net of tax:		—
Unrealized holding gains (losses) arising during period, net of $538 in taxes		—		—			—		—			1,490			1,490
Accretion of unrealized losses on securities transferred to held-to-maturity, net of $57 in taxes		—		—			—		—			162			162
Pension liability adjustment, net of $141 in taxes		—		—			—		—			361			361
Conversion of Class B Common Stock to Class A Common Stock, 120 shares		1		(1	)		—		—			—			—
Cash dividends paid, Class A common stock, $.12 per share		—		—			—		(439	)		—			(439	)
Cash dividends paid, Class B common stock, $.06 per share		—		—			—		(115	)		—			(115	)
Balance at June 30, 2020	$	3,653	$	1,915		$	12,292	$	357,595		$	(23,253	)	$	352,202
Balance at March 31, 2021	$	3,657	$	1,911		$	12,292	$	388,638		$	(25,166	)	$	381,332
Net income		—		—			—		10,823			—			10,823
Other comprehensive income, net of tax:
Unrealized holding gains (losses) arising during period, net of $263 in taxes		—		—			—		—			676			676
Accretion of unrealized losses on securities transferred to held-to-maturity, net of $65 in taxes		—		—			—		—			149			149
Pension liability adjustment, net of $158 in taxes		—		—			—		—			406			406
Conversion of Class B Common Stock to Class A Common Stock, 5,100 shares		5		(5	)		—		—			—			—
Cash dividends paid, Class A common stock, $0.18 per share		—		—			—		(660	)		—			(660	)
Cash dividends paid, Class B common stock, $0.09 per share		—		—			—		(171	)		—			(171	)
Balance at June 30, 2021	$	3,662	$	1,906		$	12,292	$	398,630		$	(23,935	)	$	392,555

See accompanying notes to unaudited consolidated interim financial statements.

Page 7 of 49

Century Bancorp, Inc.

Consolidated Statements of Changes in Stockholders’ Equity (unaudited)

For the Six Months Ended June 30, 2021 and 2020

	Class A Common Stock		Class B Common Stock			Additional Paid-In Capital		Retained Earnings			Accumulated Other Comprehensive Income (Loss)			Total Stockholders’ Equity
						(In thousands)
Balance at December 31, 2019	$	3,651	$	1,917		$	12,292	$	338,980		$	(24,259	)	$	332,581
Net income		—		—			—		19,722			—			19,722
Other comprehensive income, net of tax:
Unrealized holding gains (losses) arising during period, net of $10 in taxes		—		—			—		—			(41	)		(41	)
Accretion of unrealized losses on securities transferred to held-to-maturity, net of $115 in taxes		—		—			—		—			326			326
Pension liability adjustment, net of $281 in taxes		—		—			—		—			721			721
Conversion of Class B Common Stock to Class A Common Stock, 1,520 shares		2		(2	)		—		—			—			—
Cash dividends paid, Class A common stock, $.24 per share		—		—			—		(877	)		—			(877	)
Cash dividends paid, Class B common stock, $.12 per share		—		—			—		(230	)		—			(230	)
Balance at June 30, 2020	$	3,653	$	1,915		$	12,292	$	357,595		$	(23,253	)	$	352,202
Balance at December 31, 2020	$	3,656	$	1,912		$	12,292	$	378,699		$	(26,150	)	$	370,409
Net income		—		—			—		21,593			—			21,593
Other comprehensive income, net of tax:
Unrealized holding gains (losses) arising during period, net of $433 in taxes		—		—			—		—			1,140			1,140
Accretion of unrealized losses on securities transferred to held-to-maturity, net of $106 in taxes		—		—			—		—			263			263
Pension liability adjustment, net of $317 in taxes		—		—			—		—			812			812
Conversion of Class B Common Stock to Class A Common Stock, 6,100 shares		6		(6	)		—		—			—			—
Cash dividends paid, Class A common stock, $0.36 per share		—		—			—		(1,318	)		—			(1,318	)
Cash dividends paid, Class B common stock, $0.18 per share		—		—			—		(344	)		—			(344	)
Balance at June 30, 2021	$	3,662	$	1,906		$	12,292	$	398,630		$	(23,935	)	$	392,555

See accompanying notes to unaudited consolidated interim financial statements.

Page 8 of 49

Century Bancorp, Inc.

Consolidated Statements of Cash Flows (unaudited)

	For the Six Months Ended June 30,
	2021			2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	21,593		$	19,722
Adjustments to reconcile net income to net cash provided by operating activities:
Net (gain) loss on equity securities		(29	)		19
(Credit) provision for loan losses		(550	)		2,775
Deferred income taxes		(948	)		(795	)
Net depreciation and amortization (accretion)		1,405			(1,029	)
Decrease in accrued interest receivable		161			1,020
Decrease in other assets		201			3,337
Increase in other liabilities		5,851			850
Net cash provided by operating activities		27,684			25,899
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from redemptions of Federal Home Loan Bank of Boston stock		1,767			10,701
Purchase of Federal Home Loan Bank of Boston stock		—			(4,601	)
Proceeds from calls/maturities of securities available-for-sale		68,112			34,603
Purchase of securities available-for-sale		(16,055	)		(73,093	)
Proceeds from calls/maturities of securities held-to-maturity		518,044			319,328
Purchase of securities held-to-maturity		(1,358,830	)		(392,637	)
Net increase in loans		(3,273	)		(371,792	)
Bank owned life insurance purchases		—			(6,000	)
Capital expenditures		(3,522	)		(4,010	)
Net cash used in investing activities		(793,757	)		(487,501	)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net (decrease) increase in time deposits		(112,664	)		55,049
Net increase in demand, savings, money market and NOW deposits		1,033,622			656,808
Cash dividends		(1,662	)		(1,107	)
Net increase (decrease) in securities sold under agreements to repurchase		16,212			(61,073	)
Net decrease in other borrowed funds		(57,980	)		(218,470	)
Net cash provided by financing activities		877,528			431,207
Net increase (decrease) in cash and cash equivalents		111,455			(30,395	)
Cash and cash equivalents at beginning of period		374,000			258,693
Cash and cash equivalents at end of period	$	485,455		$	228,298
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid during the period for:
Interest	$	12,969		$	25,153
Income taxes		3,580			750
Change in unrealized gains (losses) on securities available-for-sale,
net of taxes		1,140			(41	)
Change in unrealized losses on securities transferred to held-to-maturity,
net of taxes		263			326
Pension liability adjustment, net of taxes		812			721

See accompanying notes to unaudited consolidated interim financial statements.

Page 9 of 49

Century Bancorp, Inc.

Notes to Unaudited Consolidated Interim Financial Statements

Six Months Ended June 30, 2021 and 2020

Note 1. Basis of Financial Statement Presentation

The consolidated financial statements include the accounts of Century Bancorp, Inc. (the “Company”) and its wholly owned subsidiary, Century Bank and Trust Company (the “Bank”). The consolidated financial statements also include the accounts of the Bank’s wholly owned subsidiaries, Century Subsidiary Investments, Inc. (“CSII”), Century Subsidiary Investments, Inc. II (“CSII II”), Century Subsidiary Investments, Inc. III (“CSII III”) and Century Financial Services Inc. (“CFSI”). CSII, CSII II, and CSII III are engaged in buying, selling and holding investment securities. CFSI has the power to engage in financial agency, securities brokerage, and investment and financial advisory services and related securities credit. The Company also owns 100% of Century Bancorp Capital Trust II (“CBCT II”). The entity is an unconsolidated subsidiary of the Company.

All significant intercompany accounts and transactions have been eliminated in consolidation. The Company provides a full range of banking services to individual, business and municipal customers in Massachusetts, New Hampshire, Rhode Island, Connecticut, New York, Virginia, Washington D.C, and Pennsylvania. As a bank holding company, the Company is subject to the regulation and supervision of the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”). The Bank, a state chartered financial institution, is subject to supervision and regulation by applicable state and federal banking agencies, including the Federal Reserve Board, the Federal Deposit Insurance Corporation (the “FDIC”) and the Massachusetts Commissioner of Banks. The Bank is also subject to various requirements and restrictions under federal and state law, including requirements to maintain reserves against deposits, restrictions on the types and amounts of loans that may be granted and the interest that may be charged thereon, and limitations on the types of investments that may be made and the types of services that may be offered. Various consumer laws and regulations also affect the operations of the Bank. In addition to the impact of regulation, commercial banks are affected significantly by the actions of the Federal Reserve Board as it attempts to control the money supply and credit availability in order to influence the economy. All aspects of the Company’s business are highly competitive. The Company faces aggressive competition from other lending institutions and from numerous other providers of financial services. The Company has one reportable operating segment.

The financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America and general practices within the banking industry. In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the period. Actual results could differ from those estimates. The Company’s Quarterly Report on Form 10-Q should be read in conjunction with the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, as filed with the Securities and Exchange Commission and which provides a summary of the Company’s significant accounting principles. The interim results of consolidated operations are not necessarily indicative of the results for the entire year. Certain reclassifications are made to prior-year amounts whenever necessary to conform with the current-year presentation.

Material estimates that are susceptible to change in the near term relate to the allowance for loan losses. Management believes that the allowance for loan losses is adequate based on a review of factors, including historical charge-off rates with additional allocations based on qualitative risk factors for each category and general economic factors. While management uses available information to recognize loan losses, future additions to the allowance for loan losses may be necessary based on changes in economic conditions. Certain risks and uncertainties remain in the allowance for loan losses as a result of the COVID-19 pandemic that occurred during 2020. Future provision levels will be dependent upon the length of the economic disruption and the effectiveness of government programs to mitigate the economic impact. In addition, regulatory agencies periodically review the Company’s allowance for loan losses. Such agencies may require the Company to recognize additions to the allowance for loan losses based on their judgments about information available to them at the time of their examination.

Page 10 of 49

Note 2. Securities Available-for-Sale

	June 30, 2021								December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(in thousands)
SBA Backed Securities	$	40,406	$	660	$	1	$	41,065	$	44,328	$	—	$	289	$	44,039
U.S. Government Agency and Sponsored   Enterprise Mortgage-Backed Securities		154,763		1,003		134		155,632		177,239		819		317		177,741
Privately Issued Residential Mortgage-Backed Securities		269		5		—		274		330		2		4		328
Obligations Issued by States and Political Subdivisions		26,747		—		—		26,747		52,276		—		—		52,276
Other Debt Securities		8,100		224		9		8,315		8,100		24		60		8,064
Total	$	230,285	$	1,892	$	144	$	232,033	$	282,273	$	845	$	670	$	282,448

Included in SBA Backed Securities, and U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities are securities at fair value pledged to secure public deposits and repurchase agreements amounting to $160,723,000 and $183,269,000 at June 30, 2021 and December 31, 2020, respectively. Also included in securities available-for-sale are securities at fair value pledged for borrowing at the Federal Home Loan Bank of Boston (“FHLBB”) amounting to $28,070,000 and $29,885,000 at June 30, 2021 and December 31, 2020, respectively. There were no sales of available-for-sale securities for the six months ended June 30, 2021 and June 30, 2020, respectively.

Debt securities of U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities primarily refer to debt securities of Fannie Mae and Freddie Mac.

The following table shows the maturity distribution of the Company’s securities available-for-sale at June 30, 2021.

	Amortized Cost		Fair Value
	(in thousands)
Within one year	$	28,420	$	28,442
After one but within five years		96,690		97,477
After five but within ten years		91,931		92,687
More than 10 years		13,244		13,427
Total	$	230,285	$	232,033

The weighted average remaining life of investment securities available-for-sale at June 30, 2021 was 5.3 years. The contractual maturities, which were used in the table above, of mortgage-backed securities, will differ from the actual maturities, due to the ability of the issuers to prepay underlying obligations. Also $195,045,000 of the securities are floating rate or adjustable rate and reprice prior to maturity.

As of June 30, 2021 and December 31, 2020, management concluded that the unrealized losses of its investment securities are temporary in nature since they are not related to the underlying credit quality of the issuers, and the Company does not intend to sell these debt securities and it is not more likely than not that it will be required to sell these debt securities before the anticipated recovery of its remaining amortized cost. In making its other-than-temporary impairment evaluation, the Company considered that the principal and interest on these securities are from issuers that are investment grade.

The unrealized loss on SBA Backed Securities, U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities related primarily to interest rates and not credit quality, and because the Company has the ability and intent to hold these investments until recovery of fair value, which may be maturity, the Company does not consider these investments to be other-than-temporarily impaired at June 30, 2021 or December 31, 2020.

Page 11 of 49

In evaluating the underlying credit quality of a security, management considers several factors such as the credit rating of the obligor and the issuer, if applicable. Internal reviews of issuer financial statements are performed as deemed necessary. In the case of privately issued mortgage-backed securities, the performance of the underlying loans is analyzed as deemed necessary to determine the estimated future cash flows of the securities. Factors considered include the level of subordination, current and estimated future default rates, current and estimated prepayment rates, estimated loss severity rates, geographic concentrations and origination dates of underlying loans.

The following table shows the temporarily impaired securities of the Company’s available-for-sale portfolio at June 30, 2021. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for less than 12 months and a continuous loss position for 12 months or longer. There are 1 and 9 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 140 holdings at June 30, 2021.

	June 30, 2021
	Less than 12 months				12 months or longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
SBA Backed Securities	$	—	$	—	$	98	$	1	$	98	$	1
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		—		—		15,742		134		15,742		134
Privately Issued Residential Mortgage-Backed Securities		—		—		—		—		—		—
Obligations Issued by States and Political Subdivisions		—		—		—		—		—		—
Other Debt Securities		1,491		8		100		1		1,591		9
Total temporarily impaired securities	$	1,491	$	8	$	15,940	$	136	$	17,431	$	144

The following table shows the temporarily impaired securities of the Company’s available-for-sale portfolio at December 31, 2020. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for less than 12 months and a continuous loss position for 12 months or longer. There are 13 and 21 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 153 holdings at December 31, 2020.

	December 31, 2020
	Less than 12 months				12 months or longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
SBA Backed Securities	$	13,839	$	42	$	30,200	$	247	$	44,039	$	289
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		18,188		50		33,617		267		51,805		317
Privately Issued Residential Mortgage-Backed Securities		—		—		210		4		210		4
Obligations Issued by States and Political Subdivisions		—		—		—		—		—		—
Other Debt Securities		3,942		58		1,298		2		5,240		60
Total temporarily impaired securities	$	35,969	$	150	$	65,325	$	520	$	101,294	$	670

Page 12 of 49

Note 3. Investment Securities Held-to-Maturity

	June 30, 2021								December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
U.S. Government Sponsored Enterprises	$	356,080	$	131	$	5,119	$	351,092	$	244,220	$	389	$	866	$	243,743
SBA Backed Securities		34,626		1,713		—		36,339		37,783		2,002		—		39,785
U.S. Government Sponsored Enterprises Mortgage-Backed Securities		2,959,855		39,856		26,411		2,973,300		2,227,085		69,522		1,032		2,295,575
Total	$	3,350,561	$	41,700	$	31,530	$	3,360,731	$	2,509,088	$	71,913	$	1,898	$	2,579,103

Included in total investment securities held-to-maturity are securities pledged to secure public deposits and repurchase agreements at fair value amounting to $2,315,698,000 and $1,866,989,000 at June 30, 2021 and December 31, 2020, respectively. Also included are securities pledged for borrowing at the FHLBB at fair value amounting to $729,455,000 and $537,367,000 at June 30, 2021 and December 31, 2020, respectively. There were no sales of held-to-maturity securities for the six months ended June 30, 2021 or June 30, 2020, respectively.

At June 30, 2021 and December 31, 2020, all mortgage-backed securities are obligations of U.S. Government Sponsored Enterprises. Debt securities of U.S. Government Sponsored Enterprises and U.S. Government Sponsored Enterprises Mortgage-Backed Securities primarily refer to debt securities of Fannie Mae and Freddie Mac.

The following table shows the maturity distribution of the Company’s securities held-to-maturity at June 30, 2021.

	Amortized Cost		Fair Value
	(in thousands)
Within one year	$	53,832	$	54,279
After one but within five years		1,889,085		1,914,143
After five but within ten years		1,407,644		1,392,309
More than ten years		—		—
Total	$	3,350,561	$	3,360,731

The weighted average remaining life of investment securities held-to-maturity at June 30, 2021 was 4.7 years. Included in the weighted average remaining life calculation at June 30, 2021 were $265,612,000 of U.S. Government Sponsored Enterprises obligations that are callable at the discretion of the issuer. The contractual maturities, which were used in the table above, of mortgage-backed securities, will differ from the actual maturities, due to the ability of the issuers to prepay underlying obligations. Also $72,000 of the securities are floating rate or adjustable rate and reprice prior to maturity.

As of June 30, 2021 and December 31, 2020, management concluded that the unrealized losses of its investment securities are temporary in nature since they are not related to the underlying credit quality of the issuers, and the Company does not intend to sell these debt securities and it is not more likely than not that it will be required to sell these debt securities before the anticipated recovery of their remaining amortized costs. In making its other-than-temporary impairment evaluation, the Company considered the fact that the principal and interest on these securities are from issuers that are investment grade.

Page 13 of 49

The unrealized loss on U.S. Government Sponsored Enterprises, SBA Backed Securities, and U.S. Government Sponsored Enterprises Mortgage-Backed Securities related primarily to interest rates and not credit quality, and because the Company does not intend to sell any of these securities and it is not more likely than not that it will be required to sell these securities before the anticipated recovery of the remaining amortized cost, the Company does not consider these investments to be other-than-temporarily impaired at June 30, 2021 or December 31, 2020. In evaluating the underlying credit quality of a security, management considers several factors such as the credit rating of the obligor and the issuer, if applicable. Internal reviews of issuer financial statements are performed as deemed necessary.

The following table shows the temporarily impaired securities of the Company’s held-to-maturity portfolio June 30, 2021. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for 12 months or less and a continuous loss position for 12 months or longer. There are 168 and 1 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 659 holdings at June 30, 2021.

	June 30, 2021
	Less Than 12 Months				12 Months or Longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
US Government Sponsored Enterprises	$	140,480	$	5,119	$	—	$	—	$	140,480	$	5,119
SBA Backed Securities		—		—		—		—		—		—
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		375,533		26,384		2,491		27		378,024		26,411
Total temporarily impaired securities	$	516,013	$	31,503	$	2,491	$	27	$	518,504	$	31,530

The following table shows the temporarily impaired securities of the Company’s held-to-maturity portfolio at December 31, 2020. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for less than 12 months and a continuous loss position for 12 months or longer. There are 53 and 0 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 600 holdings at December 31, 2020.

	December 31, 2020
	Less Than 12 Months				12 Months or Longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
U.S. Government Sponsored Enterprises	$	162,870	$	866	$	—	$	—	$	162,870	$	866
SBA Backed Securities		—		—		—		—		—		—
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		302,401		1,032		—		—		302,401		1,032
Total temporarily impaired securities	$	465,271	$	1,898	$	—	$	—	$	465,271	$	1,898

Page 14 of 49

Note 4. Allowance for Loan Losses

The Company maintains an allowance for loan losses in an amount determined by management on the basis of the character of the loans, loan performance, financial condition of borrowers, the value of collateral securing loans and other relevant factors.

The following table summarizes the changes in the Company’s allowance for loan losses for the periods indicated.

	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
	(in thousands)						(in thousands)
Allowance for loan losses, beginning of period	$	34,952		$	30,804		$	35,486		$	29,585
Loans charged off		(29	)		(17	)		(96	)		(79	)
Recoveries on loans previously charged-off		26			29			109			235
Net recoveries (charge-offs)		(3	)		12			13			156
(Credit) provision charged to expense		—			1,700			(550	)		2,775
Allowance for loan losses, end of period	$	34,949		$	32,516		$	34,949		$	32,516

Page 15 of 49

Further information pertaining to the allowance for loan losses for the three months ending June 30, 2021 is as follows:

	Construction and Land Development			Commercial and Industrial		Municipal			Commercial Real Estate		Residential Real Estate			Consumer			Home Equity			Unallocated		Total
Allowance for loan losses:	(in thousands)
Balance at March 31, 2021	$	293		$	16,470	$	2,837		$	11,655	$	2,067		$	194		$	1,049		$	387	$	34,952
Charge-offs		—			—		—			—		—			(29	)		—			—		(29	)
Recoveries		—			2		—			—		—			24			—			—		26
Provision (credit)		(73	)		30		(20	)		53		(38	)		15			(92	)		125		—
Ending balance at June 30, 2021	$	220		$	16,502	$	2,817		$	11,708	$	2,029		$	204		$	957		$	512	$	34,949
Amount of allowance for loan losses for loans deemed to be impaired	$	—		$	9	$	—		$	74	$	—		$	—		$	—		$	—	$	83
Amount of allowance for loan losses for loans not deemed to be impaired	$	220		$	16,493	$	2,817		$	11,634	$	2,029		$	204		$	957		$	512	$	34,866
Loans:
Ending balance	$	6,404		$	1,296,399	$	138,771		$	813,163	$	471,671		$	20,611		$	252,114		$	—	$	2,999,133
Loans deemed to be impaired	$	—		$	224	$	—		$	2,271	$	—		$	—		$	—		$	—	$	2,495
Loans not deemed to be impaired	$	6,404		$	1,296,175	$	138,771		$	810,892	$	471,671		$	20,611		$	252,114		$	—	$	2,996,638

Further information pertaining to the allowance for loan losses for the six months ending June 30, 2021 is as follows:

	Construction and Land Development			Commercial and Industrial			Municipal		Commercial Real Estate			Residential Real Estate			Consumer			Home Equity			Unallocated		Total
Allowance for loan losses:	(in thousands)
Balance at December 31, 2020	$	429		$	16,713		$	2,804	$	11,751		$	2,111		$	241		$	1,208		$	229	$	35,486
Charge-offs		—			—			—		—			—			(96	)		—			—		(96	)
Recoveries		—			5			—		—			—			104			—			—		109
Provision (credit)		(209	)		(216	)		13		(43	)		(82	)		(45	)		(251	)		283		(550	)
Ending balance at June 30, 2021	$	220		$	16,502		$	2,817	$	11,708		$	2,029		$	204		$	957		$	512	$	34,949
Amount of allowance for loan losses for loans deemed to be impaired	$	—		$	9		$	—	$	74		$	—		$	—		$	—		$	—	$	83
Amount of allowance for loan losses for loans not deemed to be impaired	$	220		$	16,493		$	2,817	$	11,634		$	2,029		$	204		$	957		$	512	$	34,866
Loans:
Ending balance	$	6,404		$	1,296,399		$	138,771	$	813,163		$	471,671		$	20,611		$	252,114		$	—	$	2,999,133
Loans deemed to be impaired	$	—		$	224		$	—	$	2,271		$	—		$	—		$	—		$	—	$	2,495
Loans not deemed to be impaired	$	6,404		$	1,296,175		$	138,771	$	810,892		$	471,671		$	20,611		$	252,114		$	—	$	2,996,638

There was a credit to the provision for losses of $550,000 for the six months ended June 30, 2021. The credit provision for the first six months of 2021 was primarily attributable to a reduction in specific allocations to the allowance for loan losses and a reduction in the historical experience reserve allocation.

Page 16 of 49

Further information pertaining to the allowance for loan losses for the three months ending June 30, 2020 is as follows:

	Construction and Land Development		Commercial and Industrial			Municipal			Commercial Real Estate		Residential Real Estate		Consumer			Home Equity		Unallocated			Total
Allowance for loan losses:	(in thousands)
Balance at March 31, 2020	$	246	$	12,428		$	2,889		$	11,121	$	2,449	$	296		$	1,137	$	238		$	30,804
Charge-offs		—		(6	)		—			—		—		(11	)		—		—			(17	)
Recoveries		—		6			—			—		—		23			—		—			29
Provision		43		693			(21	)		182		645		(19	)		328		(151	)		1,700
Ending balance at June 30, 2020	$	289	$	13,121		$	2,868		$	11,303	$	3,094	$	289		$	1,465	$	87		$	32,516
Amount of allowance for loan losses for loans deemed to be impaired	$	—	$	15		$	—		$	80	$	—	$	—		$	—	$	—		$	95
Amount of allowance for loan losses for loans not deemed to be impaired	$	289	$	13,106		$	2,868		$	11,223	$	3,094	$	289		$	1,465	$	87		$	32,421
Loans:
Ending balance	$	6,513	$	1,155,592		$	153,017		$	764,886	$	400,867	$	19,857		$	297,355	$	—		$	2,798,087
Loans deemed to be impaired	$	—	$	180		$	—		$	2,716	$	235	$	—		$	—	$	—		$	3,131
Loans not deemed to be impaired	$	6,513	$	1,155,412		$	153,017		$	762,170	$	400,632	$	19,857		$	297,355	$	—		$	2,794,956

Further information pertaining to the allowance for loan losses for the six months ending June 30, 2020 is as follows:

	Construction and Land Development			Commercial and Industrial			Municipal		Commercial Real Estate			Residential Real Estate		Consumer			Home Equity		Unallocated		Total
Allowance for loan losses:	(in thousands)
Balance at December 31, 2019	$	331		$	11,596		$	2,566	$	11,464		$	2,194	$	312		$	1,065	$	57	$	29,585
Charge-offs		—			(11	)		—		—			—		(68	)		—		—		(79	)
Recoveries		—			170			—		—			—		60			5		—		235
Provision		(42	)		1,366			302		(161	)		900		(15	)		395		30		2,775
Ending balance at June 30, 2020	$	289		$	13,121		$	2,868	$	11,303		$	3,094	$	289		$	1,465	$	87	$	32,516
Amount of allowance for loan losses for loans deemed to be impaired	$	—		$	15		$	—	$	80		$	—	$	—		$	—	$	—	$	95
Amount of allowance for loan losses for loans not deemed to be impaired	$	289		$	13,106		$	2,868	$	11,223		$	3,094	$	289		$	1,465	$	87	$	32,421
Loans:
Ending balance	$	6,513		$	1,155,592		$	153,017	$	764,886		$	400,867	$	19,857		$	297,355	$	—	$	2,798,087
Loans deemed to be impaired	$	—		$	180		$	—	$	2,716		$	235	$	—		$	—	$	—	$	3,131
Loans not deemed to be impaired	$	6,513		$	1,155,412		$	153,017	$	762,170		$	400,632	$	19,857		$	297,355	$	—	$	2,794,956

There was a provision for loan losses of $2,775,000 for the six months ended June 30, 2020. The provision for the first six months of 2020 was primarily a result of provisions related to the onset of the COVID-19 pandemic.

The Company utilizes a six-grade internal loan rating system for commercial real estate, construction, commercial, and municipal loans as follows:

Loans rated 1-3 (Pass):

Loans in this category are considered “pass” rated loans with low to average risk.

Loans rated 4 (Monitor):

These loans represent classified loans that management is closely monitoring for credit quality. These loans have had or may have minor credit quality deterioration as of June 30, 2021 and December 31, 2020.

Page 17 of 49

Loans rated 5 (Substandard):

Substandard loans represent classified loans that management is closely monitoring for credit quality. These loans have had more significant credit quality deterioration as of June 30, 2021 and December 31, 2020.

Loans rated 6 (Doubtful):

Doubtful loans represent classified loans that management is closely monitoring for credit quality. These loans had more significant credit quality deterioration as of June 30, 2021 and December 31, 2020 and full collectability is doubtful.

Impaired:

Impaired loans represent classified loans that management is closely monitoring for credit quality. A loan is classified as impaired when it is probable that the Company will be unable to collect all amounts due.

The following table presents the Company’s loans by risk rating at June 30, 2021.

	Construction and Land Development		Commercial and Industrial		Municipal		Commercial Real Estate
	(in thousands)
Grade:
1-3 (Pass)	$	6,404	$	1,292,230	$	138,771	$	787,676
4 (Monitor)		—		3,945		—		23,216
5 (Substandard)		—		—		—		—
6 (Doubtful)		—		—		—		—
Impaired		—		224		—		2,271
Total	$	6,404	$	1,296,399	$	138,771	$	813,163

The following table presents the Company’s loans by risk rating at December 31, 2020.

	Construction and Land Development		Commercial and Industrial		Municipal		Commercial Real Estate
	(in thousands)
Grade:
1-3 (Pass)	$	10,909	$	1,309,861	$	137,607	$	761,101
4 (Monitor)		—		3,945		—		23,795
5 (Substandard)		—		—		—		—
6 (Doubtful)		—		—		—		—
Impaired		—		439		—		4,940
Total	$	10,909	$	1,314,245	$	137,607	$	789,836

Page 18 of 49

Credit ratings issued by national organizations were utilized as credit quality indicators as presented in the following table at June 30, 2021 and are included within the total loan portfolio.

	Commercial and Industrial		Municipal		Commercial Real Estate		Total
	(in thousands)
Credit Rating:
Aaa – Aa3	$	761,705	$	75,825	$	36,184	$	873,714
A1 – A3		181,928		6,983		143,001		331,912
Baa1 – Baa3		50,000		51,133		145,513		246,646
Ba2		—		4,830		—		4,830
Total	$	993,633	$	138,771	$	324,698	$	1,457,102

Credit ratings issued by national organizations were utilized as credit quality indicators as presented in the following table at December 31, 2020.

	Commercial and Industrial		Municipal		Commercial Real Estate		Total
	(in thousands)
Credit Rating:
Aaa – Aa3	$	710,955	$	74,291	$	38,035	$	823,281
A1 – A3		183,123		7,103		145,583		335,809
Baa1 – Baa3		50,000		51,133		140,905		242,038
Ba2		—		5,080		—		5,080
Total	$	944,078	$	137,607	$	324,523	$	1,406,208

The Company utilized payment performance as credit quality indicators for the loan types listed below.

Further information pertaining to the allowance for loan losses at June 30, 2021 follows:

	Accruing 30-89 Days Past Due		Non Accrual		Accruing Greater than 90 Days		Total Past Due		Current Loans		Total
	(in thousands)
Construction and land development	$	—	$	—	$	—	$	—	$	6,404	$	6,404
Commercial and industrial		11		164		—		175		1,296,224		1,296,399
Municipal		—		—		—		—		138,771		138,771
Commercial real estate		—		251		—		251		812,912		813,163
Residential real estate		715		633		—		1,348		470,323		471,671
Consumer and overdrafts		10		—		—		10		20,601		20,611
Home equity		685		222		—		907		251,207		252,114
Total	$	1,421	$	1,270	$	—	$	2,691	$	2,996,442	$	2,999,133

Page 19 of 49

Further information pertaining to the allowance for loan losses at December 31, 2020 follows:

	Accruing 30-89 Days Past Due		Non Accrual		Accruing Greater than 90 Days		Total Past Due		Current Loans		Total
	(in thousands)
Construction and land development	$	—	$	—	$	—	$	—	$	10,909	$	10,909
Commercial and industrial		56		297		90		443		1,313,802		1,314,245
Municipal		—		—		—		—		137,607		137,607
Commercial real estate		—		2,881		—		2,881		786,955		789,836
Residential real estate		390		527		—		917		447,519		448,436
Consumer and overdrafts		21		1		—		22		20,417		20,439
Home equity		1,001		290		—		1,291		273,066		274,357
Total	$	1,468	$	3,996	$	90	$	5,554	$	2,990,275	$	2,995,829

Impaired Loans

A loan is impaired when, based on current information and events, it is probable that a creditor will be unable to collect all amounts due according to the contractual terms of the loan agreement. When a loan is impaired, the Company measures impairment based on the present value of expected future cash flows discounted at the loan’s effective interest rate, except that as a practical expedient, the Company measures impairment based on a loan’s observable market price or the fair value of the collateral if the loan is collateral dependent. Loans are charged-off when management believes that the collectability of the loan’s principal is not probable. The specific factors that management considers in making the determination that the collectability of the loan’s principal is not probable include: the delinquency status of the loan, the fair value of the collateral, if secured, and the financial strength of the borrower and/or guarantors. For collateral dependent loans, the amount of the recorded investment in a loan that exceeds the fair value of the collateral is charged-off against the allowance for loan losses in lieu of an allocation of a specific allowance amount when such an amount has been identified definitively as uncollectible. The Company’s policy for recognizing interest income on impaired loans is contained within Note 1 of the consolidated financial statements contained in the Company’s Annual Report for the fiscal year ended December 31, 2020.

Page 20 of 49

The following is information pertaining to impaired loans for June 30, 2021:

	Carrying Value		Unpaid Principal Balance		Required Reserve		Average Carrying Value for 3 Months Ending 6/30/2021		Interest Income Recognized for 3 Months Ending 6/30/2021		Average Carrying Value for 6 Months Ending 6/30/2021		Interest Income Recognized for 6 Months Ending 6/30/2021
	(in thousands)
With no required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		—		—		—		1		—		4		—
Municipal		—		—		—		—		—		—		—
Commercial real estate		251		287		—		256		—		261		—
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	251	$	287	$	—	$	257	$	—	$	265	$	—
With required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		224		243		9		321		1		347		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,020		2,152		74		2,029		21		2,785		41
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	2,244	$	2,395	$	83	$	2,350	$	22	$	3,132	$	43
Total:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		224		243		9		322		1		351		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,271		2,439		74		2,285		21		3,046		41
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	2,495	$	2,682	$	83	$	2,607	$	22	$	3,397	$	43

Page 21 of 49

The following is information pertaining to impaired loans for June 30, 2020:

	Carrying Value		Unpaid Principal Balance		Required Reserve		Average Carrying Value for 3 Months Ending 6/30/2020		Interest Income Recognized for 3 Months Ending 6/30/2020		Average Carrying Value for 6 Months Ending 6/30/2020		Interest Income Recognized for 6 Months Ending 6/30/2020
	(in thousands)
With no required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		77		97		—		213		1		380		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		612		645		—		346		—		266		—
Residential real estate		235		235		—		118		—		67		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	924	$	977	$	—	$	677	$	1	$	713	$	2
With required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		103		103		15		78		1		94		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,104		2,227		80		2,147		22		2,161		44
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	2,207	$	2,330	$	95	$	2,225	$	23	$	2,255	$	46
Total:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		180		200		15		291		2		474		4
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,716		2,872		80		2,493		22		2,427		44
Residential real estate		235		235		—		118		—		67		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	3,131	$	3,307	$	95	$	2,902	$	24	$	2,968	$	48

Troubled debt restructurings (“TDR”) are identified as modifications in which a concession was granted to a customer who was having financial difficulties. This concession may be below market rate, longer amortization/term, or a lower payment amount. The present value calculation of the modifications did not result in an increase in the allowance for these loans beyond any previously established allocations.

There were no TDRs made during the six-month period ended June 30, 2021. Also, there were no commitments to lend additional funds to TDR borrowers. There were no TDRs that subsequently defaulted during the first six months of 2021.

Under Section 4013 of the CARES Act, loans less than 30 days past due as of December 31, 2019 will be considered current for COVID-19 modifications. The Company can then suspend the requirements under GAAP for loan modifications related to COVID-19 that would otherwise be categorized as a TDR and suspend any determination of a loan modified as a result of COVID-19 as being a TDR, including the requirement to determine impairment for accounting purposes.

Page 22 of 49

As of June 30, 2021, and as a result of COVID-19 loan modifications, the Company had modifications of 4 loans aggregating $16,508,000, primarily consisting of short-term payment deferrals. Of these modifications, $16,508,000, or 100%, were performing in accordance with their modified terms.

There were no TDRs made during the six-month period ended June 30, 2020. Also, there were no commitments to lend additional funds to TDR borrowers. There were no TDRs that subsequently defaulted during the first six months of 2020.

Note 5. Reclassifications Out of Accumulated Other Comprehensive Income (a)

Amount Reclassified from Accumulated Other Comprehensive Income

Details about Accumulated Other Comprehensive Income Components	Three Months Ended June 30, 2021				Three Months Ended June 30, 2020				Affected Line Item in the Statement where Net Income is Presented
	(in thousands)
Unrealized gains and losses on available-for-sale securities	$	—			$	—			Net gains on sales of investments
		—				—			Provision for income taxes
	$	—			$	—			Net income
Accretion of unrealized losses transferred	$	(214	)		$	(219	)		Interest on securities held-to- maturity
		65				57			Provision for income taxes
	$	(149	)		$	(162	)		Net income
Amortization of defined benefit pension items
Prior-service costs	$	(54	)	(b)	$	(29	)	(b)	Salaries and employee benefits
Actuarial gains (losses)		(510	)	(b)		(473	)	(b)	Salaries and employee benefits
Total before tax		(564	)			(502	)		Income before taxes
Tax (expense) or benefit		158				141			Provision for income taxes
Net of tax	$	(406	)		$	(361	)		Net income

Details about Accumulated Other Comprehensive Income Components	Six Months Ended June 30, 2021				Six Months Ended June 30, 2020				Affected Line Item in the Statement where Net Income is Presented
	(in thousands)
Unrealized gains and losses on available-for-sale securities	$	—			$	—			Net gains on sales of investments
		—				—			Provision for income taxes
	$	—			$	—			Net income
Accretion of unrealized losses transferred	$	(369	)		$	(441	)		Interest on securities held-to- maturity
		106				115			Provision for income taxes
	$	(263	)		$	(326	)		Net income
Amortization of defined benefit pension items
Prior-service costs	$	(108	)	(b)	$	(58	)	(b)	Salaries and employee benefits
Actuarial gains (losses)		(1,021	)	(b)		(944	)	(b)	Salaries and employee benefits
Total before tax		(1,129	)			(1,002	)		Income before taxes
Tax (expense) or benefit		317				281			Provision for income taxes
Net of tax	$	(812	)		$	(721	)		Net income

(a) Amount in parentheses indicates reductions to net income.

(b) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Employee Benefits footnote (Note 7) for additional details).

Page 23 of 49

Note 6. Earnings per Share (“EPS”)

Class A and Class B shares participate equally in undistributed earnings. Under the Company’s Articles of Organization, the holders of Class A Common Stock are entitled to receive dividends per share equal to at least 200% of dividends paid, if any, from time to time, on each share of Class B Common Stock.

Diluted EPS includes the dilutive effect of common stock equivalents and assumes the conversion of all Class B common stock; basic EPS excludes all common stock equivalents. The Company had no common stock equivalents outstanding for the periods ended June 30, 2021 and 2020.

The following table is a reconciliation of basic EPS and diluted EPS.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands except share and per share data)	2021		2020		2021		2020
Basic EPS Computation:
Numerator:
Net income, Class A	$	8,588	$	7,967	$	17,126	$	15,618
Net income, Class B		2,235		2,089		4,467		4,104
Denominator:
Weighted average shares outstanding, Class A		3,661,569		3,652,469		3,659,019		3,652,409
Weighted average shares outstanding, Class B		1,906,340		1,915,440		1,908,890		1,915,500
Basic EPS, Class A	$	2.35	$	2.18	$	4.68	$	4.28
Basic EPS, Class B		1.17		1.09		2.34		2.14
Diluted EPS Computation:
Numerator:
Net income, Class A	$	8,588	$	7,967	$	17,126	$	15,618
Net income, Class B		2,235		2,089		4,467		4,104
Total net income, for diluted EPS, Class A computation		10,823		10,056		21,593		19,722
Denominator:
Weighted average shares outstanding, basic, Class A		3,661,569		3,652,469		3,659,019		3,652,409
Weighted average shares outstanding, Class B		1,906,340		1,915,440		1,908,890		1,915,500
Weighted average shares outstanding diluted, Class A		5,567,909		5,567,909		5,567,909		5,567,909
Weighted average shares outstanding, Class B		1,906,340		1,915,440		1,908,890		1,915,500
Diluted EPS, Class A	$	1.94	$	1.81	$	3.88	$	3.54
Diluted EPS, Class B		1.17		1.09		2.34		2.14

Page 24 of 49

Note 7. Employee Benefits

The Company provides pension benefits to its employees under a noncontributory, defined benefit plan which is funded on a current basis in compliance with the requirements of the Employee Retirement Income Security Act of 1974 (“ERISA”) and recognizes costs over the estimated employee service period.

The Company also has the Century Bancorp, Inc. Supplemental Executive Retirement and Insurance Plan (the “Supplemental Plan”) which is limited to certain officers and employees of the Company. The Supplemental Plan is accrued on a current basis and recognizes costs over the estimated employee service period.

Executive officers of the Company and its subsidiaries who have at least one year of service may participate in the Supplemental Plan. The Supplemental Plan is voluntary, and participants are required to contribute to its cost. Life insurance policies, which are owned by the Company, are purchased covering the lives of each participant.

Components of Net Periodic Benefit Cost for the Three Months Ended June 30,

	Pension Benefits						Supplemental Insurance/ Retirement Plan
	2021			2020			2021		2020
	(in thousands)
Service cost	$	379		$	344		$	363	$	353
Interest		434			450			434		466
Expected return on plan assets		(1,062	)		(952	)		—		—
Recognized prior service cost (benefit)		—			—			54		29
Recognized net actuarial losses		241			261			269		212
Net periodic benefit (credit) cost	$	(8	)	$	103		$	1,120	$	1,060

Components of Net Periodic Benefit Cost for the Six Months Ended June 30,

	Pension Benefits						Supplemental Insurance/ Retirement Plan
	2021			2020			2021		2020
	(in thousands)
Service cost	$	758		$	688		$	725	$	706
Interest		868			900			869		932
Expected return on plan assets		(2,123	)		(1,904	)		—		—
Recognized prior service cost (benefit)		—			—			108		58
Recognized net actuarial losses		482			522			539		422
Net periodic benefit (credit) cost	$	(15	)	$	206		$	2,241	$	2,118

Approximately $743,000 and $930,000 of costs other than service costs, from the table above, are included in other expenses with the remaining cost included in salaries and employee benefits, for the six months ended June 30, 2021 and 2020, respectively.

Contributions

The Company has contributed $1,302,000 to the Defined Benefit Pension Plan in 2021.

Page 25 of 49

Note 8. Fair Value Measurements

The Company follows FASB ASC 820-10, Fair Value Measurements and Disclosures and ASU 2016-1, “Financial Instruments-Overall” (Subtopic 825-10) Recognition and Measurement of Financial Assets and Financial Liabilities, which among other things, requires enhanced disclosures about assets and liabilities carried at fair value. ASC 820-10 establishes a hierarchal disclosure framework associated with the level of pricing observability utilized in measuring financial instruments at fair value. The three broad levels of the hierarchy are as follows:

Level I – Quoted prices are available in active markets for identical assets or liabilities as of the reported date. The type of financial instruments included in Level I are highly liquid cash instruments with quoted prices such as G-7 government, agency securities, listed equities and money market securities, as well as listed derivative instruments.

Level II – Pricing inputs are other than quoted prices in active markets, which are either directly or indirectly observable as of the reported date. The nature of these financial instruments include cash instruments for which quoted prices are available but traded less frequently, derivative instruments whose fair value have been derived using a model where inputs to the model are directly observable in the market or can be derived principally from or corroborated by observable market data, and instruments that are fair valued using other financial instruments, the parameters of which can be directly observed. Instruments which are generally included in this category are corporate bonds and loans, mortgage whole loans, municipal bonds, and OTC derivatives.

Level III – Instruments that have little to no pricing observability as of the reported date. These financial instruments do not have two-way markets and are measured using management’s best estimate of fair value, where the inputs into the determination of fair value require significant management judgment or estimation. Instruments that are included in this category generally include municipal securities with no observable fair value with an average life of one year or less. The securities are carried at cost which approximates fair value. A periodic review of underlying financial statements and credit ratings is performed to assess the appropriateness of these valuations.

The results of the fair value hierarchy as of June 30, 2021, are as follows:

	Fair Value Measurements Using
	Carrying Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
	(in thousands)
Financial Instruments Measured at Fair Value on a Recurring Basis
Securities AFS
SBA Backed Securities	$	41,065	$	—	$	41,065	$	—
U.S. Government Agency and Sponsored Mortgage-Backed Securities		155,632		—		155,632		—
Privately Issued Residential Mortgage-Backed Securities		274		—		274		—
Obligations Issued by States and Political Subdivisions		26,747		—		—		26,747
Other Debt Securities		8,315		—		8,315		—
Total	$	232,033	$	—	$	205,286	$	26,747
Equity Securities	$	1,697	$	351	$	1,346	$	—
Financial Instruments Measured at Fair Value on a Non-recurring Basis Impaired Loans	$	251	$	—	$	—	$	251

Page 26 of 49

The results of the fair value hierarchy as of December 31, 2020, are as follows:

	Fair Value Measurements Using
	Carrying Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
	(in thousands)
Financial Instruments Measured at Fair Value on a Recurring Basis
Securities AFS
SBA Backed Securities	$	44,039	$	—	$	44,039	$	—
U.S. Government Agency and Sponsored Mortgage-Backed Securities		177,741		—		177,741		—
Privately Issued Residential Mortgage- Backed Securities		328		—		328		—
Obligations Issued by States and Political Subdivisions		52,276		—		—		52,276
Other Debt Securities		8,064		—		8,064		—
Total	$	282,448	$	—	$	230,172	$	52,276
Equity Securities	$	1,668	$	303	$	1,365	$	—
Financial Instruments Measured at Fair Value on a Non-recurring Basis
Impaired Loans	$	3,178	$	—	$	—	$	3,178

Impaired loan balances represent those collateral dependent loans where management has estimated the credit loss by comparing the loan’s carrying value against the expected realizable fair value of the collateral. Fair value is generally determined through a review process that includes independent appraisals, discounted cash flows, or other external assessments of the underlying collateral, which generally include various Level 3 inputs which are not observable. The Company discounts the fair values, as appropriate, based on management’s observations of the local real estate market for loans in this category.

Appraisals, discounted cash flows and real estate tax assessments are reviewed quarterly. There is no specific policy regarding how frequently appraisals will be updated. Adjustments are made to appraisals and real estate tax assessments based on management’s estimate of changes in real estate values. All impaired loans have been reviewed during the past quarter using either a discounted cash flow analysis, appraisal of collateral or other type of real estate tax assessment. The types of adjustments that are made to specific provisions (credits) related to impaired loans recognized for the three and six-month period ended June 30, 2021 amounted to ($125,000) and ($500,000). The types of adjustments that are made to specific provisions related to impaired loans recognized for the year ended December 31, 2020 amounted to $501,000.

There were no transfers between level 1, 2 and 3 for the six months ended June 30, 2021 and the year ended December 31, 2020. There were no liabilities measured at fair value on a recurring or nonrecurring basis during the six months ended June 30, 2021 and the year ended December 31, 2021.

Page 27 of 49

The following table presents additional information about assets measured at fair value on a recurring and nonrecurring basis for which the Company has utilized Level 3 inputs to determine fair value (dollars in thousands) at June 30, 2021. Management continues to monitor the assumptions used to value the assets listed below.

Asset	Fair Value		Valuation Technique	Unobservable Input	Unobservable Input Value or Range
Securities AFS (1)	$	26,747	Discounted cash flow	Discount rate	0% – 1.0% (2)
Impaired Loans	$	251	Appraisal of collateral (3)	Appraisal adjustments (4)	0% –22% discount

The following table presents additional information about assets measured at fair value on a recurring and nonrecurring basis for which the Company has utilized Level 3 inputs to determine fair value (dollars in thousands) at December 31, 2020. Management continues to monitor the assumptions used to value the assets listed below.

Asset	Fair Value		Valuation Technique	Unobservable Input	Unobservable Input Value or Range
Securities AFS (1)	$	52,276	Discounted cash flow	Discount rate	0% –1.0% (2)
Impaired Loans	$	3,178	Appraisal of collateral (3)	Appraisal adjustments (4)	0% –17% discount

(1)  Municipal securities generally have maturities of one year or less and, therefore, the amortized cost equates to the fair value.

(2)  Weighted averages.

(3)  Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various Level 3 inputs which are not identifiable.

(4)  Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated expenses.

The changes in Level 3 securities for the six-month period ended June 30, 2021 are shown in the table below: 

	Obligations Issued by States & Political Subdivisions
Balance at December 31, 2020	$	52,276
Purchases		14,855
Maturities and calls		(40,347	)
Amortization		(37	)
Balance at June 30, 2021	$	26,747

The amortized cost of Level 3 securities was $26,747,000 at June 30, 2021 with an unrealized loss of $0. The securities in this category are generally municipal securities with no readily determinable fair value. Management evaluated the fair value of these securities based on an evaluation of the underlying issuer, prevailing rates and market liquidity.

The changes in Level 3 securities for the six-month period ended June 30, 2020 are shown in the table below:

	Obligations Issued by States & Political Subdivisions
Balance at December 31, 2019	$	13,301
Purchases		44,324
Maturities and calls		(8,879	)
Amortization		(7	)
Balance at June 30, 2020	$	48,739

Page 28 of 49

The amortized cost of Level 3 securities was $48,739,000 at June 30, 2020 with an unrealized loss of $0. The securities in this category are generally municipal securities with no readily determinable fair value. Management evaluated the fair value of these securities based on an evaluation of the underlying issuer, prevailing rates and market liquidity.

The fair value of impaired loans decreased by $2,927,000, for the first six months of 2021, mainly attributable to one loan that was paid down. There were no liabilities measured at fair value on a recurring or nonrecurring basis during the six-month period ended June 30, 2020.

Note 9. Fair Values of Financial Instruments

The following methods and assumptions were used by the Company in estimating fair values of its financial instruments. Excluded from this disclosure are all non-financial instruments. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company.

The assumptions used below are expected to approximate those that market participants would use in valuing these financial instruments.

Fair value estimates are made at a specific point in time, based on available market information and judgments about the financial instrument, including estimates of timing, amount of expected future cash flows and the credit standing of the issuer. Such estimates do not consider the tax impact of the realization of unrealized gains or losses. In some cases, the fair value estimates cannot be substantiated by comparison to independent markets. In addition, the disclosed fair value may not be realized in the immediate settlement of the financial instrument. Care should be exercised in deriving conclusions about our business, its value or financial position based on the fair value information of financial instruments presented below.

Securities Held-to-Maturity

The fair values of these securities were based on quoted market prices, where available, as provided by third-party investment portfolio pricing vendors. If quoted market prices were not available, fair values provided by the vendors were based on quoted market prices of comparable instruments in active markets and/or based on a matrix pricing methodology which employs The Bond Market Association’s standard calculations for cash flow and price/yield analysis, live benchmark bond pricing and terms/condition data available from major pricing sources. Management regards the inputs and methods used by third party pricing vendors to be “Level 2 inputs and methods” as defined in the “fair value hierarchy” provided by FASB.

Loans

The fair value of loans is estimated using the exit price notion consistent with Topic 820, Fair Value Measurement. Fair value is determined based on a discounted cash flow analysis. The discounted cash flow analysis was based on the contractual maturity of the loan and market indications of rates, prepayment speeds, defaults and credit risk. For certain non-performing assets, fair value of the underlying collateral is determined based on the estimated values of individual receipts.

Time Deposits

The fair value of time deposits was estimated using a discounted cash flow approach that applies prevailing market interest rates for similar maturity instruments. The fair values of the Company’s time deposit liabilities do not take into consideration the value of the Company’s long-term relationships with depositors, which may have significant value.

Other Borrowed Funds

The fair value of other borrowed funds is based on the discounted value of contractual cash flows. The discount rate used is estimated based on the rates currently offered for other borrowed funds of similar remaining maturities.

Page 29 of 49

Subordinated Debentures

The fair value of subordinated debentures is based on the discounted value of contractual cash flows. The discount rate used is estimated based on the rates currently offered for other subordinated debentures of similar remaining maturities.

The following presents (in thousands) the carrying amount, estimated fair value, and placement in the fair value hierarchy of the Company’s financial instruments as of June 30, 2021 and December 31, 2020. This table excludes financial instruments for which the carrying amount approximates fair value. Financial assets for which the fair value approximates carrying value include cash and cash equivalents, short-term investments, FHLBB stock and accrued interest receivable. Financial liabilities for which the fair value approximates carrying value include non-maturity deposits, short-term borrowings and accrued interest payable.

June 30, 2021	Carrying Amount		Estimated Fair Value		Fair Value Measurements Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
	(in thousands)
Financial assets:
Securities held-to-maturity	$	3,350,561	$	3,360,731	$	—	$	3,360,731	$	—
Loans (1)		2,964,184		2,867,548		—		—		2,867,548
Financial liabilities:
Time deposits		433,479		431,087		—		431,087		—
Other borrowed funds		119,029		122,560		—		122,560		—
Subordinated debentures		36,083		36,083		—		36,083		—
December 31, 2020
Financial assets:
Securities held-to-maturity	$	2,509,088	$	2,579,103	$	—	$	2,579,103	$	—
Loans (1)		2,960,343		2,902,390		—		—		2,902,390
Financial liabilities:
Time deposits		546,143		556,470		—		556,470		—
Other borrowed funds		177,009		183,000		—		183,000		—
Subordinated debentures		36,083		36,083		—		36,083		—

(1) Comprised of loans (including collateral dependent impaired loans), net of deferred loan costs and the allowance for loan losses.

Limitations

Fair value estimates are made at a specific point in time, based on relevant market information and information about the type of financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Bank’s entire holdings of a particular financial instrument. Because no active market exists for some of the Bank’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, cash flows, current economic conditions, risk characteristics and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions and changes in the loan, debt and interest rate markets could significantly affect the estimates. Further, the income tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on the fair value estimates and have not been considered.

Note 10. Revenue from Contracts with Customers

Revenue from contracts with customers in the scope of ASC Topic 606 is measured based on the consideration specified in the contract with a customer, and excludes amounts collected on behalf of third parties. The Company recognizes revenue from contracts with customers when it satisfies its performance obligations.

The Company’s performance obligations are typically satisfied as services are rendered, and our contracts do not include multiple performance obligations. Payment is generally collected at the time services are rendered, or monthly. Unsatisfied performance obligations at the report date are not material to our consolidated financial statements.

Page 30 of 49

The Company pays sales commissions to its employees in accordance with certain incentive plans. The Company expenses sales commissions when incurred if we do not expect to recover these costs from the terms of the contract with the customer. Sales commissions are included in compensation expense.

In certain cases, other parties are involved with providing products and services to our customers. If the Company is a principal in the transaction (providing goods or services itself), revenues are reported based on the gross consideration received from the customer and any related expenses are reported gross in noninterest expense. If the Company is an agent in the transaction (arranging for another party to provide goods or services), the Company reports its net fee or commission retained as revenue.

Waivers and reversals are recorded as a reduction of revenue either when the revenue is recognized by the Company or at the time the waiver or reversal is earned by the customer.

A. Nature of goods and services

The vast majority of the Company’s revenue is specifically out-of-scope of Topic 606. For the revenue in-scope, the following is a description of principal activities, separated by the timing of revenue recognition, from which the Company generates its revenue from contracts with customers.

a. Revenue earned at a point in time – Examples of revenue earned at a point in time are ATM transaction fees, wire transfer fees, “non-sufficient funds” fees, credit and debit card interchange fees and foreign exchange transaction fees. Revenue is generally derived from transactional information accumulated by our systems and is recognized as revenue immediately as the transactions occur or upon providing the service to complete the customer’s transaction. The Company is the principal in each of these contracts, with the exception of credit and debit card interchange fees, in which case we are acting as the agent and record revenue net of expenses paid to the principal.

b. Revenue earned over time – The Company earns revenue from contracts with customers in a variety of ways in which the revenue is earned over a period of time – generally monthly or quarterly. Examples of this type of revenue are deposit account service fees, lockbox fees, investment management fees, merchant referral services, and safe deposit box fees. Account service charges, management fees and referral fees are recognized on a monthly basis while any transaction based income is recorded as the activity occurs. Revenue is primarily based on the number and type of transactions or assets managed and is generally derived from transactional information accumulated by our systems. Revenue is recorded in the same period as the related transactions occur or services are rendered to the customer.

B. Disaggregation of revenue

The following table presents total revenues as presented in the Consolidated Statements of Income and the related amounts which are from contracts with customers within the scope of Topic 606. As illustrated here, the vast majority of our revenues are specifically excluded from the scope of Topic 606.

	Six Months Ended 6/30/2021		Revenue from Contracts in Scope of Topic 606		Six Months Ended 6/30/2020		Revenue from Contracts in Scope of Topic 606
	(dollars in thousands)
Net interest income	$	58,558	$	—	$	51,019	$	—
Noninterest income:
Service charges on deposit accounts		4,389		4,389		4,319		4,319
Lockbox fees		1,962		1,962		1,854		1,854
Other income		1,958		1,366		2,178		1,158
Total noninterest income		8,309		7,717		8,351		7,331
Total revenues	$	66,867	$	7,717	$	59,370	$	7,331

Page 31 of 49

	Three Months Ended 6/30/2021		Revenue from Contracts in Scope of Topic 606		Three Months Ended 6/30/2020		Revenue from Contracts in Scope of Topic 606
	(dollars in thousands)
Net interest income	$	29,991	$	—	$	25,818	$	—
Noninterest income:
Service charges on deposit accounts		2,171		2,171		2,023		2,023
Lockbox fees		966		966		924		924
Other income		969		671		1,094		559
Total noninterest income		4,106		3,808		4,041		3,506
Total revenues	$	34,097	$	3,808	$	29,859	$	3,506

The following table provides information about receivables with customers.

	June 30, 2021		December 31, 2020
(dollars in thousands)
Receivables, which are included in “Other assets”	$	1,486	$	1,397

Note 11. Leases

The Company has operating leases primarily for branch locations as well as data processing centers. The Company’s operating leases have remaining lease terms of 1 year to 31 years, some of which include options to extend the leases for up to 10 years, and some of which include options to terminate the leases within 1 year. The Company also has one sublease for part of a data processing center that the Company currently leases from a lessor. The sublease expires in 2024 which can be terminated early after each sublease year. Lease income, for the sublease, totaled approximately $20,000 for the six months ended June 30, 2021. Variable lease costs include costs that are not included in the lease liability.

The components of lease expense were as follows:

	Three Months Ended 6/30/2021		Six Months Ended 6/30/2021		Three Months Ended 6/30/2020		Six Months Ended 6/30/2020
(in thousands)
Operating lease cost	$	560	$	1,121	$	546	$	1,092
Variable lease cost		201		353		173		307
Total lease cost	$	761	$	1,474	$	719	$	1,399

Supplemental cash flow information related to leases was as follows:

	Three Months Ended 6/30/2021		Six Months Ended 6/30/2021		Three Months Ended 6/30/2020		Six Months Ended 6/30/2020
(in thousands)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	542	$	1,083	$	529	$	1,057
Right-of-use assets obtained in exchange for lease obligations: Operating leases	$	—	$	—	$	434	$	875

Page 32 of 49

Supplemental balance sheet information related to leases was as follows:

	6/30/2021		12/31/2020
(in thousands, except lease term and discount rate)
Operating Leases:
Operating lease right-of-use assets	$	12,810	$	13,713
Operating lease liabilities	$	13,057	$	13,935
Weighted Average Remaining Lease Term:
Operating Leases		10 Years		10 Years
Weighted Average Discount Rate:
Operating Leases		3.1%		3.1%

The Company has payment obligations under a number of non-cancelable operating leases for premises and equipment expiring in various years through 2030. Total lease expense approximated $1,475,000 and $1,399,000 for the six months ended June 30, 2021 and 2020, respectively. Included in lease expense are amounts paid to a company affiliated with Barry R. Sloane, Chairman, President and CEO, and Linda Sloane Kay, Vice Chair, amounting to $275,000 and $219,000, for the six months ended June 30, 2021 and 2020, respectively. Rental income approximated $370,000 and $347,000, for the six months ended June 30, 2021 and 2020, respectively.

A summary of future minimum rental payments under such leases as the dates indicated follows:

	Minimum Rental Payments
	June 30, 2021			December 31, 2020
	(in thousands)
Year Ending December 31, 2021	$	1,088		$	2,156
2022		1,995			1,995
2023		1,962			1,962
2024		1,692			1,692
2025		1,471			1,471
Thereafter		7,394			7,394
Total lease payments	$	15,602		$	16,670
Less imputed interest		(2,545	)		(2,735	)
Present value of lease liability	$	13,057		$	13,935

June 30, 2021 minimum rental payments represent six months of rental payments remaining in calendar year 2021.

Note 12. Proposed Transaction with Eastern Bankshares, Inc.

On April 7, 2021, the Company and Eastern Bankshares, Inc. (“Eastern”) (NASDAQ: EBC) entered into an Agreement and Plan of Merger pursuant to which, through a series of transactions, Eastern will acquire the Company in a cash transaction for total consideration valued at approximately $642 million. Under the terms of the Agreement and Plan of Merger, (i) each holder of Class A common stock will receive a cash payment of $115.28 per share of Class A common stock and (ii) each holder of Class B common stock will receive a cash payment of $115.28 per share of Class B common stock. The transaction is expected to close in the fourth quarter of 2021 and is subject to customary closing conditions, including required regulatory approvals. The Company’s shareholders approved the Agreement and Plan of Merger at the Special Meeting of the Shareholders held on July 7, 2021.

The Company has recognized approximately $1.2 million in merger related costs, mainly consisting of legal and consulting expenses. The expenses have been recorded in other expenses on the income statement. The Company also has contingent merger related fees of approximately $7.9 million mainly consisting of underwriting and legal fees that have not been recognized. The contingent merger related fees will be recognized upon closing of the proposed transaction.

Page 33 of 49

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

Overview

Century Bancorp, Inc. (together with its bank subsidiary, unless the context otherwise requires, the “Company”) is a Massachusetts corporation formed in 1972 and has one banking subsidiary (the “Bank”): Century Bank and Trust Company, a Massachusetts state-chartered trust company formed in 1969 and headquartered in Medford, Massachusetts. At June 30, 2021, the Company had total assets of $7.3 billion. Currently, the Company operates 28 banking offices in 21 cities and towns in Massachusetts and Southern New Hampshire, ranging from Braintree in the south to Salem, New Hampshire in the north. The Bank’s customers consist primarily of small and medium-sized businesses and retail customers in these communities and surrounding areas, as well as local governments and large healthcare and higher educational institutions primarily throughout Massachusetts, New Hampshire, Rhode Island, Connecticut, New York, Virginia, Washington D.C., and Pennsylvania.

The Company’s results of operations are largely dependent on net interest income, which is the difference between the interest earned on loans and securities and interest paid on deposits and borrowings. The results of operations are also affected by the level of income and fees from loans, deposits, as well as operating expenses, the provision for loan losses, the impact of federal and state income taxes and the relative levels of interest rates and economic activity. The Company offers a wide range of services to commercial enterprises, state and local governments and agencies, non-profit organizations and individuals. It emphasizes service to small and medium sized businesses and retail customers in its market area. In recent years, the Company has increased business to larger institutions, specifically, healthcare and higher education. The Company makes commercial loans, real estate and construction loans and consumer loans, and accepts savings, time, and demand deposits. In addition, the Company offers its corporate and institutional customers automated lock box collection services, cash management services and account reconciliation services, and actively promotes the marketing of these services to the municipal market. Also, the Company provides full-service securities brokerage services through a program called Investment Services at Century Bank, which is supported by LPL Financial, a third party full-service securities brokerage business.

The Company has municipal cash management client engagements in Massachusetts, New Hampshire and Rhode Island composed of approximately 302 government entities.

Net income for the six months ended June 30, 2021, was $21,593,000 or $3.88 per Class A share diluted, an increase of 9.5% compared to net income of $19,722,000, or $3.54 per Class A share diluted, for the same period a year ago.

Earnings per share “EPS” for each class of stock and time period is as follows:

	Three Months Ended June 30,
	2021		2020
Basic EPS – Class A common	$	2.35	$	2.18
Basic EPS – Class B common	$	1.17	$	1.09
Diluted EPS – Class A common	$	1.94	$	1.81
Diluted EPS – Class B common	$	1.17	$	1.09
	Six Months Ended June 30,
	2021		2020
Basic EPS – Class A common	$	4.68	$	4.28
Basic EPS – Class B common	$	2.34	$	2.14
Diluted EPS – Class A common	$	3.88	$	3.54
Diluted EPS – Class B common	$	2.34	$	2.14

Page 34 of 49

Net interest income totaled $58.6 million for the six months ended June 30, 2021 compared to $51.0 million for the same period in 2020. The 14.8% increase in net interest income for the period is primarily due to a decrease in interest expense as a result of falling interest rates. The net interest margin decreased from 2.04% on a fully tax-equivalent basis for the first six months of 2020 compared to 1.81% for the same period in 2021. This was primarily the result of the recent decrease in interest rates across the yield curve. The average balances of interest-earning assets increased for 2021 compared to the same period last year, by $1.49 billion or 27.5%, combined with an average yield decrease of 0.79%, resulting in a decrease in interest income of $4.7 million. The average balance of interest-bearing liabilities increased for 2021 compared to the same period last year, by $1.14 billion or 26.0%, combined with an average interest-bearing liabilities interest cost decrease of 0.68%, resulting in a decrease in interest expense of $12.3 million.

The trends in the net interest margin are illustrated in the graph below:

The net interest margin decreased during the first quarter of 2020 mainly as a result of decreases in rates on earning assets. This was partially offset by prepayment penalties collected of $874,000 and contributed approximately seven basis points to the net interest margin. The net interest margin decreased during the second, third, and fourth quarters of 2020 primarily as a result of increased margin pressure during the recent decrease in interest rates across the yield curve. This was partially offset by prepayment penalties collected of $453,000 and contributed approximately three basis points to the net interest margin during the fourth quarter of 2020. The net interest margin decreased during the first half of 2021 primarily as a result of the recent decrease in interest rates across the yield curve. While management will continue its efforts to improve the net interest margin, there can be no assurance that certain factors beyond its control, such as the prepayment of loans and changes in market interest rates, will positively impact the net interest margin.

There was a credit to the provision for loan losses of $550,000 for the six months ended June 30, 2021 compared to a provision of $3.3 million for the same period in 2020. The provision for the first six months of 2020 was primarily a result of provisions related to the onset of the COVID-19 pandemic. The credit provision for the first six months of 2021 was primarily attributable to a reduction in specific allocations to the allowance for loan losses and a reduction in the historical experience reserve allocation.

The Company’s effective tax rate increased from 7.8% for the six months ended June 30, 2020 to 15.4% for the same period in 2021. This was primarily as a result of an increase in taxable income relative to total income and nondeductible merger related expenses.

During the third quarter of 2019, the Company purchased a future branch location in Salem, New Hampshire. The Company opened this branch during the second quarter of 2021. During the second quarter of 2020, the Company executed a lease for a future branch location in Needham, Massachusetts. The Company plans to open this branch during the fourth quarter of 2021.

Page 35 of 49

Recent Market Developments

Coronavirus Aid, Relief and Economic Security Act (“CARES Act”), Families First Coronavirus Response Act (“FFCRA”), and Coronavirus Response and Relief Supplemental Appropriations Act of 2021

On March 18, 2020, the FFCRA was signed into law and on March 27, 2020, the CARES Act was signed into law. The FFCRA and the CARES Act provide relief for families and businesses impacted by the coronavirus pandemic. The provisions in this legislation include, among other things, loan programs for businesses, expanded unemployment insurance benefits, stimulus payments to certain taxpayers, new provisions on sick leave and family leave, and funding for a variety of health-related efforts and government programs. Also, as a result of the CARES Act, the full balance of the Company’s AMT credit was refunded in 2020.

The CARES Act, among other things, provides cash payments to certain individuals and has various programs for businesses. In particular, it includes the PPP which provides forgivable loans to qualified small businesses, primarily to allow these businesses to continue to pay their employees. The original amount allocated to the program was $349 billion, which was exhausted on April 16, 2020. On April 24, 2020, an additional allocation of $310 billion was signed into law. These loans are funded by participating banks and are 100% guaranteed by the SBA. If utilized primarily for payroll, subject to certain other conditions, the loans may be forgiven, in whole or in part, and repaid by the SBA. During 2020 and 2021, the Company participated in the PPP. Since the inception of the program, PPP originations totaled approximately 2,008 loans for approximately $341 million. As of June 30, 2021, Century Bank’s PPP loans totaled approximately 939 loans for approximately $142 million. The fees collected, from the SBA, amount to approximately $12.7 million. The amount of fees recognized during the first six months of 2021 amounted to approximately $3.5 million compared to $1.1 million for the same period last year. Total cost deferrals amounted to approximately $1.9 million since inception. The amount of costs recognized during the first six months of 2021 amounted to approximately $688,000 compared to $146,000 for the same period last year. The fees and costs are being amortized over the lives of the loans utilizing the level-yield method.

Under Section 4013 of the CARES Act, from March 1, 2020 through the earlier of January 1, 2022 or 60 days after the termination date of the national emergency declared by the President on March 13, 2020 concerning the COVID-19 outbreak (the “national emergency”), a financial institution may elect to suspend the requirements under U.S. GAAP for loan modifications related to the COVID-19 pandemic that would otherwise be categorized as a troubled debt restructured, including impairment accounting. This troubled debt restructuring relief applies for the term of the loan modification that occurs during the applicable period for a loan that was not more than 30 days past due as of December 31, 2019.

As of June 30, 2021, and as a result of COVID-19 loan modifications, the Company has modifications of 4 loans aggregating $16.5 million, primarily consisting of short-term payment deferrals. Of these modifications, $16.5 million, or 100%, were performing in accordance with their modified terms.

The CARES Act also allows companies to delay Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2016-13, Measurement of Credit Losses on Financial Instruments (CECL), including the current expected credit losses methodology for estimating allowances for credit losses. The Company elected to delay FASB ASU 2016-13. This ASU was delayed until the earlier of the date on which the national emergency terminates or December 31, 2020, with an effective retrospective implementation date of January 1, 2020. On December 27, 2020, the Coronavirus Response and Relief Supplemental Appropriations Act of 2021 was signed into law. The law changed the delayed implementation date to the earlier of the Company’s fiscal year that begins after the date on which the national emergency terminates or January 1, 2022.

Recent Accounting Developments

Recently Adopted Accounting Standards Updates

In August 2018, FASB issued ASU 2018-14, “Compensation-Retirement Benefits-Defined Benefit Plans-General (Subtopic 715-20)” (“ASU 2018-14”), to modify the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. ASU 2018-14 is effective for fiscal years beginning after December 15, 2020, for public business entities and for fiscal years beginning after December 15, 2021, for all other entities. Early adoption is permitted. Management has evaluated ASU 2018-14 and as of January 1, 2021, the Company has adopted ASU 2018-14 and determined the impact to be immaterial.

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The amendments in this ASU simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. The amendments in this ASU are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. The effect of this ASU did not have a material impact on the Company’s consolidated financial position.

Page 36 of 49

Accounting Standards Issued but not yet Adopted

The following list identifies ASUs applicable to the Company that have been issued by the FASB but are not yet effective:

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The amendments in the ASU are effective for a limited period and mainly address accounting and reporting challenges due to the transition from LIBOR on existing contracts. The optional expedients may be applied to loans, borrowings, leases and derivatives at any period as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020 up to the date that the financial statements are available to be issued. The ASU simplifies the accounting analyses for contract modifications and simplifies the hedge effectiveness assessment and allows hedging relationships impacted by the LIBOR transition to continue. The amendments in this ASU are effective for all entities as of March 12, 2020 through December 31, 2022. The Company is assessing the impact of this standard but does not expect that it will have a material impact on the Company’s consolidated financial statements, or results of operations.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (CECL). This ASU was issued to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments and other commitments to extend credit held by a reporting entity at each reporting date.

To achieve this objective, the amendments in this ASU replace the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The amendments in this ASU are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. See discussion below of the deferral of the amendments in this ASU.

To implement the new standard the Company has purchased a software solution and has captured the information needed to implement this ASU. As part of the FASB ASC 326 implementation process, the company is using two models: a rating migration model and a probability of default model. The ratings migration model, which will be used for our larger loans made to institutions with available credit ratings, is designed to estimate loss reserves according to the CECL standard for rated loans or similar instruments. The model structure follows a grade migration approach, where the default rate is based on the probability of each grade transition which is modelled using historical data. The probability of default model, which will be used for our remaining commercial loans and our consumer loans, is based primarily on four components: loss history, product life cycle, behavioral attributes and the economic environment. Since the fourth quarter of 2019, the Company tested the two CECL credit models in parallel with the existing incurred loss models. The securities held-to-maturity include U.S. Treasury, U.S. Government Sponsored Enterprises, SBA Backed Securities and U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities. The CECL standard allows assumption of zero expected credit losses where expectation of non-payment is zero for these types of securities. The Company expects no impact from ASU 2016-13 to arise from this portfolio.

Since ASU 2016-13, the FASB has issued amendments intended on improving the clarification of the amendment, ASU 2018-19 Codification Improvements to Topic 326, Financial Instruments—Credit Losses and ASU 2019-04 Codification Improvements to Topic 326, Financial Instruments—Credit Losses, Topic 815, Derivatives and Hedging. The amendment in ASU 2018-19 was issued in November 2018 and was intended to clarify that receivables arising from operating leases are not within the scope of Subtopic 326-20. Instead, impairment of receivables arising from operating leases should be accounted for in accordance with Topic 842, Leases. The amendment in ASU 2019-04 was issued in April 2019 and was intended to clarify stakeholders’ specific issues about certain aspects of the amendments in ASU 2016-13. ASU 2019- 05 Financial Instruments—Credit Losses (Topic 326): Targeted Transition Relief was also issued in May 2019. This ASU provides entities the option to irrevocably elect the fair value option for certain financial assets previously measured at amortized costs basis. The fair value option election does not apply to held-to-maturity debt securities. An entity that elects the fair value option should subsequently apply the guidance in Subtopics 820-10, Fair Value Measurement—Overall. The amendments in this ASU should be applied on a modified-retrospective basis by means of a cumulative-effect adjustment to the opening balance of retained earnings balance in the statement of financial position as of the date that an entity early adopted the amendments in ASU 2016-13. In November 2019, the FASB issued ASU 2019-11, Codification Improvements to Topic 326, Financial Instruments—Credit Losses. The amendments in this ASU affect a variety of Topics in the Codification. The amendments apply to all reporting entities within the scope of the affected accounting guidance. This ASU is effective for annual reporting periods beginning after December 15, 2019. See discussion below of the deferral of the amendments in this ASU.

Page 37 of 49

On March 27, 2020, the Coronavirus Aid, Relief and Economic Security (CARES) Act was signed into law. The CARES Act allows certain companies to delay FASB ASU 2016-13, Measurement of Credit Losses on Financial Instruments (CECL), and subsequent amendments to the ASU noted above, including the current expected credit losses methodology for estimating allowances for credit losses. The Company has elected to delay FASB ASU 2016-13. This ASU was delayed until the earlier of the date on which the national emergency concerning the COVID-19 outbreak declared by the President on March 15, 2020 terminates or December 31, 2020, with an effective retrospective implementation date of January 1, 2020. On December 27, 2020, the Coronavirus Response and Relief Supplemental Appropriations Act of 2021 was signed into law. The law changed the delayed implementation date to the earlier of the first day of the Company’s fiscal year that begins after the date on which the national emergency terminates or January 1, 2022. The Company does not believe the impact of adoption would have been material to the Company’s consolidated financial statements as of June 30, 2021.

Financial Condition

Loans

On June 30, 2021, total loans outstanding were $2,999,133,000, up by $3,304,000 from the total on December 31, 2020. At June 30, 2021, commercial real estate loans accounted for 27.1%, commercial and industrial accounted for 43.2%, and residential real estate loans, including home equity loans, accounted for 24.1% of total loans.

Commercial and industrial loans decreased to $1,296,399,000 on June 30, 2021 from $1,314,245,000 at December 31, 2020. The Company originated approximately $108,197,000 of PPP loans during the six months ended June 30, 2021 and received approximately $162,837,000 of PPP loan payoffs, primarily from loan forgiveness, during the first six months of 2021. Commercial real estate loans increased to $813,163,000 on June 30, 2021 from $789,836,000 on December 31, 2020 primarily as a result of loan originations. Construction loans decreased to $6,404,000 at June 30, 2021 from $10,909,000 on December 31, 2020, primarily as a result of loan payoffs. Residential real estate loans increased to $471,671,000 on June 30, 2021 from $448,436,000 on December 31, 2020, primarily as a result of loan originations. Home equity loans decreased to $252,114,000 on June 30, 2021 from $274,357,000 on December 31, 2020, primarily as a result of a home equity loan payoffs. Municipal loans increased slightly to $138,771,000 from $137,607,000.

In recent years, the Company has increased business to larger institutions, specifically, healthcare, higher education, and municipal organizations. Further discussion relating to changes in portfolio composition is provided in the allowance for loan loss section of the management discussion and analysis. We will closely monitor the concentrations to determine the impact of COVID-19 upon their short-term and long-term operations.

Allowance for Loan Losses

The allowance for loan loss at June 30, 2021 was $34,949,000 as compared to $35,486,000 at December 31, 2020. The level of the allowance for loan losses to total loans was 1.17% at June 30, 2021 and 1.18% at December 31, 2020. The ratio of the allowance for loan losses to loans outstanding has decreased slightly from December 31, 2020, primarily from the payoff of a large loan relationship which had a specific reserve and a reduction in the historical experience reserve allocation. The Company monitors the outlook for the industries in which our borrowers operate. Healthcare and higher education are two of the primary industries. In particular the Company utilizes outlooks and forecasts from various sources. The Company also monitors the volatility of the losses within the historical data.

By combining the credit rating, the industry outlook and the loss volatility, the Company arrives at the loss factor for each credit grade. For a large loan to large institutions with publicly available credit ratings, the Company tracks these ratings. These ratings are tracked as a credit quality indicator for these loans. Credit ratings issued by national organizations were utilized as credit quality indicators as presented in the following table at June 30, 2021.

Page 38 of 49

Credit ratings issued by national organizations were utilized as credit quality indicators as presented in the following table at June 30, 2021 and are included within the total loan portfolio.

	Commercial and Industrial		Municipal		Commercial Real Estate		Total
	(in thousands)
Credit Rating:
Aaa – Aa3	$	761,705	$	75,825	$	36,184	$	873,714
A1 – A3		181,928		6,983		143,001		331,912
Baa1 – Baa3		50,000		51,133		145,513		246,646
Ba2		—		4,830		—		4,830
Total	$	993,633	$	138,771	$	324,698	$	1,457,102

Credit ratings issued by national organizations are presented in the following table at December 31, 2020.

	Commercial and Industrial		Municipal		Commercial Real Estate		Total
	(in thousands)
Credit Rating:
Aaa – Aa3	$	710,955	$	74,291	$	38,035	$	823,281
A1 – A3		183,123		7,103		145,583		335,809
Baa1 – Baa3		50,000		51,133		140,905		242,038
Ba2		—		5,080		—		5,080
Total	$	944,078	$	137,607	$	324,523	$	1,406,208

The allowance for loan losses is an estimate of the amount needed for an adequate reserve to absorb losses in the existing loan portfolio. This amount is determined by an evaluation of the loan portfolio, including input from an independent organization engaged to review selected larger loans, a review of loan experience and current economic conditions. Although the allowance is allocated between categories, the entire allowance is available to absorb losses attributable to all loan categories.

The following table summarizes the changes in the Company’s allowance for loan losses for the periods indicated.

	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
	(in thousands)						(in thousands)
Allowance for loan losses, beginning of period	$	34,952		$	30,804		$	35,486		$	29,585
Loans charged off		(29	)		(17	)		(96	)		(79	)
Recoveries on loans previously charged-off		26			29			109			235
Net recoveries (charge-offs)		(3	)		12			13			156
(Credit) provision charged to expense		—			1,700			(550	)		2,775
Allowance for loan losses, end of period	$	34,949		$	32,516		$	34,949		$	32,516

The Company may experience increased levels of nonaccrual loans if borrowers are negatively impacted by future negative economic conditions. Management continually monitors trends in the loan portfolio to determine the appropriate level of allowance for loan losses. At the current time, management believes that the allowance for loan losses is adequate.

Page 39 of 49

Nonperforming Assets

The following table sets forth information regarding nonperforming assets held by the Bank at the dates indicated:

	June 30, 2021			December 31, 2020
	(dollars in thousands)
Nonaccruing loans	$	1,270			$3,996
Total nonperforming assets	$	1,270			$3,996
Loans past due 90 days or more and still accruing	$	—			$     90
Nonaccruing loans as a percentage of total loans		0.04	%		0.13	%
Nonperforming assets as a percentage of total assets		0.02	%		0.06	%
Accruing troubled debt restructures	$	2,079			$2,202

Investments

Management continually evaluates its investment alternatives in order to properly manage the overall balance sheet mix. The timing of purchases, sales and reinvestments, if any, will be based on various factors including expectation of movements in market interest rates, deposit flows and loan demand. Notwithstanding these events, it is the intent of management to grow the earning asset base mainly through loan originations while funding this growth through a mix of retail deposits, FHLB advances, and retail repurchase agreements.

Securities Available-for-Sale (at Fair Value)

The securities available-for-sale portfolio totaled $232,033,000 at June 30, 2021, a decrease of 17.8% from December 31, 2020. The portfolio decreased mainly as a result of paydowns and maturities of securities available-for-sale totaling $68,112,000 offset, somewhat by purchases of $16,055,000. The portfolio is concentrated in United States Government Sponsored Enterprises, Mortgage-backed Securities and Obligations issued by States and Political Subdivisions and had an estimated weighted average remaining life of 5.3 years.

At June 30, 2021, 88.5% of the Company’s securities available-for-sale are classified as Level 2. The fair values of these securities are generally obtained from a pricing service, which provides the Company with a description of the inputs generally utilized for each type of security. These inputs include benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data. Market indicators and industry and economic events are also monitored.

Securities available-for-sale totaling $26,747,000 or 11.5% of securities available-for-sale are classified as Level 3. These securities are generally municipal securities with no observable fair value with an average life of one year or less. The securities are carried at cost which approximates fair value. A periodic review of underlying financial statements and credit ratings is performed to assess the appropriateness of these valuations.

During the first six months of 2021, net unrealized gains on the securities available-for-sale increased to $1,748,000 from a net unrealized gain of $175,000 at December 31, 2020. This was primarily the result of an increase in the value of floating rate securities.

The following table sets forth the fair value of securities available-for-sale at the dates indicated.

	June 30, 2021		December 31, 2020
	(in thousands)
Small Business Administration	$	41,065		$  44,039
U.S Government Agency and Sponsored Enterprise Mortgage-backed Securities		155,632		177,741
Privately Issued Residential Mortgage-backed Securities		274		328
Obligations issued by States and Political Subdivisions		26,747		52,276
Other Debt Securities		8,315		8,064
Total Securities Available–for-Sale	$	232,033		$282,448

There were no sales of available-for-sales securities for the six months ended June 30, 2021.

Page 40 of 49

Securities Held-to-Maturity (at Amortized Cost)

The securities held-to-maturity portfolio totaled $3,350,561,000 on June 30, 2021, an increase of 33.5% from December 31, 2020. Purchases of held-to-maturity securities totaled $1,358,830,000 for the six months ended June 30, 2021. The purchases were offset somewhat, by maturities and scheduled principal payments of $518,044,000. The portfolio is concentrated in United States Government Sponsored Enterprises and Mortgage-backed Securities and had an estimated weighted average remaining life of 4.7 years.

The following table sets forth the amortized cost of securities held-to-maturity at the dates indicated.

	June 30, 2021		December 31, 2020
	(in thousands)
U.S. Government Sponsored Enterprises	$	356,080	$	244,220
SBA Backed Securities		34,626		37,783
U.S. Government Agency and Sponsored Enterprise Mortgage-backed Securities		2,959,855		2,227,085
Total Securities Held-to-Maturity	$	3,350,561	$	2,509,088

There were no sales of held-to-maturity securities for the six months ended June 30, 2021.

The net unrealized gains on investment securities held-to-maturity were $10,170,000 or 0.3% of the total securities held-to-maturity portfolio at June 30, 2021 and the net unrealized gains was $70,015,000 or 2.8% of the total securities held-to-maturity portfolio at December 31, 2020. The decrease in the net unrealized gains on securities held-to-maturity related primarily to an increase in interest rates. The gross unrealized losses relate primarily to interest rates and not credit quality, and because the Company does not intend to sell any of these securities and it is not likely that it will be required to sell these securities before the anticipated recovery of the remaining amortized cost, the Company does not consider these investments to be other-than-temporarily impaired as of June 30, 2021 and December 31, 2020.

On June 30, 2021 and December 31, 2020, all mortgage-backed securities are obligations of U.S. Government Sponsored Enterprises. Debt securities of Government Sponsored Enterprises primarily refer to debt securities of Fannie Mae and Freddie Mac.

Federal Home Loan Bank of Boston Stock

The Bank, as a member of the Federal Home Loan Bank of Boston (“FHLBB”), is required to maintain an investment in capital stock of the FHLBB. Based on redemption provisions, the stock has no quoted market value and is carried at cost. At its discretion, the FHLBB may declare dividends on the stock. The Company reviews this investment for impairment based on the ultimate recoverability of the cost basis in the stock. As of June 30, 2021, there have been no indicators of impairment that would require further consideration of potential impairment.

Equity Securities

On June 30, 2021, equity securities totaled $1,697,000 compared to $1,668,000 at December 31, 2020, the increase is the result of changes in fair values.

Deposits and Borrowed Funds

On June 30, 2021, deposits totaled $6,373,179,000 representing a 16.9% increase from December 31, 2020. Total deposits increased primarily as a result of an increase in savings and NOW deposits, demand deposits, and money market accounts. These types of deposits increased primarily from an increased customer base and the cyclical nature of the municipal deposit base. Savings and NOW deposits increased mainly as a result of an increase in municipal NOW accounts and corporate savings accounts. Demand deposits increased mainly as a result of increased corporate checking balances as a result of PPP loan proceed deposits. Money market accounts increased mainly as a result of an increase in municipal and corporate money market accounts. Time deposits decreased primarily as a result of decreased municipal time deposits.

Borrowed funds totaled $367,331,000 at June 30, 2021 compared to $409,099,000 at December 31, 2020. Borrowed funds decreased mainly as a result of a decrease in borrowings from the FHLBB, offset, somewhat by an increase in repurchase agreements. FHLBB borrowings decreased mainly as a result of the increase in funds provided by deposits. Repurchase agreements increased primarily as a result of short-term customer activity.

Page 41 of 49

Stockholders’ Equity

At June 30, 2021, total equity was $392,555,000 compared to $370,409,000 on December 31, 2020. The Company’s equity increased primarily as a result of earnings, partially offset by dividends paid. The Company’s leverage ratio stood at 6.13% on June 30, 2021, compared to 6.64% at December 31, 2020. The decrease in the leverage ratio was due to an increase in quarterly average assets, offset somewhat by an increase in stockholders’ equity. Book value as of June 30, 2021, was $70.50 as compared to $66.53 on December 31, 2020.

Page 42 of 49

Results of Operations

The following table sets forth the distribution of the Company’s average assets, liabilities and stockholders’ equity, and average annualized rates earned or paid on a fully taxable equivalent basis for each of the three-month periods indicated.

	Three Months Ended
	June 30, 2021									June 30, 2020
	Average Balance			Interest Income/ Expenses (1)			Rate Earned/ Paid (1)			Average Balance			Interest Income/ Expenses (1)			Rate Earned/ Paid (1)
	(dollars in thousands)
ASSETS
Interest-earning assets:
Loans (2)
Loans taxable	$	1,724,413		$	14,889			3.46	%	$	1,501,889		$	13,270			3.55	%
Loans tax-exempt		1,269,934			7,625			2.41	%		1,204,389			8,374			2.80	%
Securities available-for-sale (5):
Taxable		226,453			481			0.85	%		280,834			938			1.34	%
Tax-exempt		41,096			93			0.91	%		11,378			54			1.90	%
Securities held-to-maturity:
Taxable		3,314,919			14,113			1.70	%		2,370,522			15,222			2.57	%
Interest-bearing deposits in other banks		431,658			112			0.10	%		266,089			68			0.10	%
Total interest-earning assets		7,008,473			37,313			2.13	%		5,635,101			37,926			2.69	%
Non interest-earning assets		353,817									290,228
Allowance for loan losses		(35,268	)								(31,477	)
Total assets	$	7,327,022								$	5,893,852
LIABILITIES AND STOCKHOLDERS’ EQUITY
Interest-bearing deposits:
NOW accounts	$	1,338,232		$	430			0.13	%	$	1,143,571		$	1,320			0.46	%
Savings accounts		1,015,868			323			0.13	%		803,135			798			0.40	%
Money market accounts		2,394,172			2,489			0.42	%		1,580,486			3,462			0.88	%
Time deposits		462,382			1,115			0.97	%		607,942			3,111			2.06	%
Total interest-bearing deposits		5,210,654			4,357			0.34	%		4,135,134			8,691			0.85	%
Securities sold under agreements to repurchase		244,666			98			0.16	%		206,764			309			0.60	%
Other borrowed funds and subordinated debentures		171,568			1,224			2.86	%		192,843			1,302			2.72	%
Total interest-bearing liabilities		5,626,888			5,679			0.40	%		4,534,741			10,302			0.91	%
Non-interest-bearing liabilities
Demand deposits		1,217,456									924,506
Other liabilities		95,165									87,756
Total liabilities		6,939,509									5,547,003
Stockholders’ equity		387,513									346,849
Total liabilities & stockholders’ equity	$	7,327,022								$	5,893,852
Net interest income on a fully taxable equivalent basis					31,634									27,624
Less taxable equivalent adjustment					(1,643	)								(1,806	)
Net interest income				$	29,991								$	25,818
Net interest spread (3)								1.72	%								1.78	%
Net interest margin (4)								1.81	%								1.97	%

(1) On a fully taxable equivalent basis calculated using a federal tax rate of 21%. Rates are annualized.

(2) Nonaccrual loans are included in average amounts outstanding.

(3) Interest rate spread represents the difference between the weighted average yield on interest-earning assets and the weighted average cost of interest-bearing liabilities.

(4) Net interest margin represents net interest income as a percentage of average interest-earning assets.

(5) Average balances of securities available-for-sale calculated utilizing amortized cost.

Page 43 of 49

Results of Operations

The following table sets forth the distribution of the Company’s average assets, liabilities and stockholders’ equity, and average annualized rates earned or paid on a fully taxable equivalent basis for each of the three-month periods indicated.

	Six Months Ended
	June 30, 2021									June 30, 2020
	Average Balance			Interest Income/ Expenses (1)			Rate Earned/ Paid (1)			Average Balance			Interest Income/ Expenses (1)			Rate Earned/ Paid (1)
	(dollars in thousands)
ASSETS
Interest-earning assets:
Loans (2)
Loans taxable	$	1,734,048		$	30,576			3.56	%	$	1,388,944		$	26,751			3.87	%
Loans tax-exempt		1,254,157			15,156			2.44	%		1,188,176			19,163			3.24	%
Securities available-for-sale (5):
Taxable		233,534			1,020			0.87	%		271,583			2,520			1.86	%
Tax-exempt		44,666			203			0.91	%		10,509			191			3.63	%
Securities held-to-maturity:
Taxable		3,066,945			27,230			1.78	%		2,335,136			30,515			2.61	%
Interest-bearing deposits in other banks		572,623			291			0.10	%		220,008			678			0.62	%
Total interest-earning assets		6,905,973			74,476			2.17	%		5,414,356			79,818			2.96	%
Non interest-earning assets		358,342									287,825
Allowance for loan losses		(35,500	)								(30,621	)
Total assets	$	7,228,815								$	5,671,560
LIABILITIES AND STOCKHOLDERS’ EQUITY
Interest-bearing deposits:
NOW accounts	$	1,249,201		$	1,077			0.17	%	$	1,079,919		$	3,573			0.67	%
Savings accounts		1,042,051			794			0.15	%		759,852			2,270			0.60	%
Money market accounts		2,345,499			5,375			0.46	%		1,530,442			9,034			1.19	%
Time deposits		486,202			2,696			1.12	%		598,669			6,283			2.11	%
Total interest-bearing deposits		5,122,953			9,942			0.39	%		3,968,882			21,160			1.07	%
Securities sold under agreements to repurchase		239,765			239			0.20	%		226,518			935			0.83	%
Other borrowed funds and subordinated debentures		180,121			2,462			2.76	%		205,341			2,801			2.74	%
Total interest-bearing liabilities		5,542,839			12,643			0.46	%		4,400,741			24,896			1.14	%
Non-interest-bearing liabilities
Demand deposits		1,206,719									841,339
Other liabilities		97,464									87,589
Total liabilities		6,847,022									5,329,669
Stockholders’ equity		381,793									341,891
Total liabilities & stockholders’ equity	$	7,228,815								$	5,671,560
Net interest income on a fully taxable equivalent basis					61,833									54,922
Less taxable equivalent adjustment					(3,275	)								(3,903	)
Net interest income				$	58,558								$	51,019
Net interest spread (3)								1.71	%								1.83	%
Net interest margin (4)								1.81	%								2.04	%

(1) On a fully taxable equivalent basis calculated using a federal tax rate of 21%. Rates are annualized.

(2) Nonaccrual loans are included in average amounts outstanding.

(3) Interest rate spread represents the difference between the weighted average yield on interest-earning assets and the weighted average cost of interest-bearing liabilities.

(4) Net interest margin represents net interest income as a percentage of average interest-earning assets.

(5) Average balances of securities available-for-sale calculated utilizing amortized cost.

Page 44 of 49

The following table presents certain information on a fully-tax equivalent basis regarding changes in the Company’s interest income and interest expense for the periods indicated. For each category of interest-earning assets and interest-bearing liabilities, information is provided with respect to changes attributable to changes in rate and changes in volume.

	Three Months Ended June 30, 2021 Compared with Three Months Ended June 30, 2020									Six Months Ended June 30, 2021 Compared with Six Months Ended June 30, 2020
	Increase/(Decrease) Due to Change in									Increase/(Decrease) Due to Change in
	Volume			Rate			Total			Volume			Rate			Total
	(in thousands)									(in thousands)
Interest income:
Loans
Taxable	$	1,959		$	(340	)	$	1,619		$	6,164		$	(2,339	)	$	3,825
Tax-exempt		446			(1,195	)		(749	)		1,003			(5,010	)		(4,007	)
Securities available-for-sale
Taxable		(159	)		(298	)		(457	)		(314	)		(1,186	)		(1,500	)
Tax-exempt		80			(41	)		39			243			(231	)		12
Securities held-to-maturity
Taxable		4,957			(6,066	)		(1,109	)		8,048			(11,333	)		(3,285	)
Interest-bearing deposits in other banks		43			1			44			490			(877	)		(387	)
Total interest income		7,326			(7,939	)		(613	)		15,634			(20,976	)		(5,342	)
Interest expense:
Deposits
NOW accounts		195			(1,085	)		(890	)		484			(2,980	)		(2,496	)
Savings accounts		172			(647	)		(475	)		630			(2,106	)		(1,476	)
Money market accounts		1,326			(2,299	)		(973	)		3,421			(7,080	)		(3,659	)
Time deposits		(621	)		(1,375	)		(1,996	)		(1,024	)		(2,563	)		(3,587	)
Total interest-bearing deposits		1,072			(5,406	)		(4,334	)		3,511			(14,729	)		(11,218	)
Securities sold under agreements to repurchase		50			(261	)		(211	)		51			(747	)		(696	)
Other borrowed funds and subordinated debentures		(147	)		69			(78	)		(352	)		13			(339	)
Total interest expense		975			(5,598	)		(4,623	)		3,210			(15,463	)		(12,253	)
Change in net interest income	$	6,351		$	(2,341)		$	4,010		$	12,424		$	(5,513)		$	6,911

Net Interest Income

For the three months ended June 30, 2021, net interest income on a fully taxable-equivalent basis totaled $31,634,000 compared to $27,624,000 for the same period in 2020, an increase of $4,010,000, or 14.5%. The increase in net interest income for the period is primarily due to a decrease in interest expense as a result of falling interest rates. The net interest margin decreased from 1.97% on a fully tax-equivalent basis for the first three months of 2020 compared to 1.81% for the same period in 2021. This was primarily the result of increased margin pressure during the recent decrease in interest rates across the yield curve. The average balances of interest-earning assets increased for 2021 compared to the same period last year, by $1,373,372,000 or 24.4%, combined with an average yield decrease of 0.56%, resulting in a decrease in interest income of $613,000. The average balance of interest-bearing liabilities increased for 2021 compared to the same period last year, by $1,092,147,000, or 24.1%, combined with an average interest-bearing liabilities interest cost decrease of 0.51%, resulting in a decrease in interest expense of $4,623,000.

For the six months ended June 30, 2021, net interest income on a fully taxable equivalent basis totaled $61,833,000 compared to $54,922,000 for the same period in 2020, an increase of $6,911,000, or 12.6%. The increase in net interest income for the period is primarily due to a decrease in interest expense as a result of falling interest rates. The net interest margin decreased from 2.04% on a fully tax-equivalent basis for the first six months of 2020 compared to 1.81% for the same period in 2021. This was primarily the result of increased margin pressure during the recent decrease in interest rates across the yield curve. The average balances of interest-earning assets increased for 2021 compared to the same period last year, by $1,491,617,000, or 27.5%, combined with an average yield decrease of 0.79%, resulting in a decrease in interest income of $5,342,000. The average balance of interest-bearing liabilities increased for 2021 compared to the same period last year, by $1,142,098,000, or 26.0%, combined with an average interest-bearing liabilities interest cost decrease of 0.68%, resulting in a decrease in interest expense of $12,253,000.

Page 45 of 49

As illustrated in the table above, the main contributors to the increase in net interest income for the three and six-month period was a decrease in rates paid on interest-bearing deposits. The Company has decreased interest rates on these products as market rates have decreased. Securities held-to-maturity, securities available-for-sale, interest-bearing deposits in other banks, and loan income decreased primarily from a decrease in rates paid on the portfolios. Securities held-to-maturity income decrease was offset, somewhat, by an increase in volume. Loan income increased for the three months ended June 30, 2021, primarily as a result of increased volume.

Provision for Loan Losses

The provision for loan losses decreased by $3,325,000 from $2,775,000 for the six months ended June 30, 2020 compared to a credit of $550,000 for the same period in 2021. The provision for the first six months of 2020 was primarily a result of provisions related to the onset of the COVID-19 pandemic. The credit provision for the first six months of 2021 was primarily attributable to a reduction in specific allocations to the allowance for loan losses and a reduction in the historical experience reserve allocation.

Further discussion relating to changes in portfolio composition is discussed in Note 4.

Non-Interest Income and Expense

Other operating income for the quarter ended June 30, 2021 increased by $65,000 from the same period last year to $4,106,000. This was mainly attributable to an increase in service charges on deposit accounts of $148,000 and an increase in lockbox fees of $42,000. This was offset, somewhat, by a decrease of $125,000 in other income. Service charges on deposit accounts increased mainly as a result of an increase in processing activities and an increase in debit card fees. Lockbox fees increased mainly as a result of increased customer activity. Other income decreased mainly as a result of a decrease in insurance gains on life insurance policies.

Other operating income for the six months ended June 30, 2021 decreased by $42,000 from the same period last year to $8,309,000. This was mainly attributable to a decrease in other income of $220,000. This was offset, somewhat, by an increase of $108,000 in lockbox fees and $70,000 in service charges on deposit accounts. Service charges on deposit accounts increased mainly as a result of a increase in processing activities and an increase in debit card fees. Lockbox fees increased mainly as a result of increased customer activity. Other income decreased mainly as a result of a decrease in insurance gains on life insurance policies.

For the quarter ended June 30, 2021, operating expenses increased by $3,970,000, or 23.3%, to $21,012,000, from the same period last year. This was primarily attributable to an increase in salaries and employee benefits of $2,015,000, an increase of $135,000 in occupancy costs, an increase of $447,000 in FDIC assessments, and an increase of $1,404,000 in other expenses. The increase in salaries and employee benefits was mainly attributable to merit increases, lower bonus accruals during the same period in 2020 as a result of uncertainties from the COVID-19 pandemic, decreased deferred origination cost credits, and increased employee benefits including health insurance costs. The increase in FDIC assessments was attributable to increased deposits and increased deposit assessment rates. The increase in occupancy costs was mainly attributable to an increase in building maintenance costs. Other expenses increased mainly as a result of expenses related to the previously announced merger, increases in COVID-19 related expenses, and increases in charitable contributions.

For the six months ended June 30, 2021, operating expenses increased by $6,668,000, or 18.9%, to $41,883,000, from the same period last year. This was primarily attributable to an increase in salaries and employee benefits of $2,894,000, an increase of $322,000 in occupancy costs, an increase of $81,000 in equipment expenses, an increase of $919,000 in FDIC assessments, and an increase of $2,452,000 in other expenses. The increase in salaries and employee benefits was mainly attributable to merit increases, lower bonus accruals during the same period in 2020 as a result of uncertainties from the COVID-19 pandemic, decreased deferred origination cost credits, and increased employee benefits including health insurance costs. The increase in FDIC assessments was attributable to credits applied during the first quarter of 2020, increased deposits and increased deposit assessment rates. The increase in occupancy costs was mainly attributable to an increase in building maintenance. Other expenses increased mainly as a result of expenses related to the previously announced merger, increases in COVID-19 related expenses, and increases in charitable contributions. Equipment expense increased mainly from an increase in depreciation expense.

Income Taxes

For the quarter ended June 30, 2021, the Company’s income tax expense totaled $2,262,000 on pretax income of $13,085,000 resulting in an effective tax rate of 17.3%. For last year’s corresponding quarter, the Company’s income tax expense totaled $1,061,000 on pretax income of $11,117,000 resulting in an effective tax rate of 9.5%. This increase was primarily the result of an increase in taxable income relative to total income and nondeductible merger related expenses.

For the six months ended June 30, 2021, the Company’s income tax expense totaled $3,941,000 on pretax income of $25,534,000 resulting in an effective tax rate of 15.4%. For the six months ended June 30, 2020, the Company’s income tax expense totaled $1,658,000 on pretax income of $21,380,000 resulting in an effective tax rate of 7.8%. This increase was primarily the result of an increase in taxable income relative to total income and nondeductible merger related expenses.

Page 46 of 49

Item 3. Quantitative and Qualitative Disclosure about Market Risk

Market risk is the risk of loss from adverse changes in market prices and rates. The Company’s market risk arises primarily from interest rate risk inherent in its lending and deposit taking activities. To that end, management actively monitors and manages its interest rate risk exposure. The Company’s profitability is affected by fluctuations in interest rates. A sudden and substantial increase or decrease in interest rates may adversely impact the Company’s earnings to the extent that the interest rates tied to specific assets and liabilities do not change at the same speed, to the same extent, or on the same basis. The Company monitors the impact of changes in interest rates on its net interest income using several tools. The Company’s primary objective in managing interest rate risk is to minimize the adverse impact of changes in interest rates on the Company’s net interest income and capital, while structuring the Company’s asset-liability structure to obtain the maximum yield-cost spread on that structure. Management believes that there has been no material changes in the interest rate risk reported in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, filed with the Securities and Exchange Commission. The information is contained in the Form 10-K within the Market Risk and Asset Liability Management section of Management’s Discussion and Analysis of Results of Operations and Financial Condition.

Item 4. Controls and Procedures

The Company’s management, with participation of the Company’s principal executive and financial officers, has evaluated its disclosure controls and procedures as of the end of the period covered by this quarterly report. Based on this evaluation, the Company’s management, with participation of its principal executive and financial officers, has concluded that the Company’s disclosure controls and procedures are effective. The disclosure controls and procedures also effectively ensure that information required to be disclosed in the Company’s filings and submissions with the Securities and Exchange Commission under the Exchange Act is accumulated and reported to Company management (including the principal executive officer and the principal financial officer) as appropriate to allow timely decisions regarding required disclosure and is recorded, processed, summarized and reported within the time periods specified by the Securities and Exchange Commission. In addition, the Company has evaluated its internal control over financial reporting and during the first six months of 2021 there were no changes that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

Part II – Other Information

Item 1 A number of legal claims against the Company arising in the normal course of business were outstanding at June 30, 2021. Management, after reviewing these claims with legal counsel, is of the opinion that their resolution will not have a material adverse effect on the Company’s consolidated financial position or results of operations.

Item 1A Risk Factors – Please read the “Risk Factors in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020 and the Quarterly Report on Form 10-Q for the quarter ended on March 31, 2021 (the “10-Q”). There have been no material changes since the 10-Q was filed.

Item 2 Unregistered Sales of Equity Securities and Use of Proceeds –

(a) – (b) Not applicable.

(c) None

Item 3 Defaults Upon Senior Securities – None

Item 4 Mine Safety Disclosures – Not applicable

Item 5 Other Information – None

Item 6 Exhibits

31.1	Certification of Chairman, President and Chief Executive Officer of the Company Pursuant to Securities Exchange Act Rules 13a-14 and 15d-14.
31.2	Certification of Chief Financial Officer of the Company Pursuant to Securities Exchange Act Rules 13a-14 and 15d-14.

Page 47 of 49

+32.1	Certification of Chairman, President and Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
+32.2	Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
++101.	INS XBRL Instance Document
++101.	SCH XBRL Taxonomy Extension Schema
++101.	CAL XBRL Taxonomy Extension Calculation Linkbase
++101.	LAB XBRL Taxonomy Extension Label Linkbase
++101.	PRE XBRL Taxonomy Extension Presentation Linkbase
++101.	DEF XBRL Taxonomy Definition Linkbase
104	Cover Page Interactive Data File (formatted as inline XBRL with applicable taxonomy extension information contained in Exhibits 101)

+ This exhibit shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liability of that section, and shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934.

++ As provided in Rule 406T of regulation S-T, this information is filed for purposes of Sections 11 and 12 of the Securities Act of 1933 and Section 18 of the Securities Exchange Act of 1934 and consists of the following materials from Century Bancorp Inc.’s Quarterly Report on 10-Q for the quarter ended June 30, 2021, formatted in XBRL: (i) Consolidated Balance Sheets at June 30, 2021 and December 31, 2020; (ii) Consolidated Statements of Income for the three and six months ended June 30, 2021 and 2020; (iii) Consolidated Statements of Comprehensive Income for the three and six months ended June 30, 2021 and 2020; (iv) Consolidated Statements of Changes in Stockholders’ Equity for the three months ended June 30, 2021 and 2020; (v) Consolidated Statements of Changes in Stockholders’ Equity for the six months ended June 30, 2021 and 2020; (vi) Consolidated Statements of Cash Flows for the six months ended June 30, 2021 and 2020; and (vii) Notes to Unaudited Consolidated Interim Financial Statements.

Page 48 of 49

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.

Date: August 6, 2021	Century Bancorp, Inc.
/s/ Barry R. Sloane
Barry R. Sloane
Chairman, President and Chief Executive Officer
/s/ William P. Hornby
William P. Hornby, CPA
Chief Financial Officer and Treasurer
(Principal Accounting Officer)

Page 49 of 49

EX-31.1

Exhibit 31.1

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER OF THE COMPANY

PURSUANT TO SECURITIES EXCHANGE ACT RULES 13A-14 AND 15D-14

I, Barry R. Sloane, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Century Bancorp, Inc.;

2. Based on my knowledge, this quarterly 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 quarterly report;

3. Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the period presented in this quarterly report;

4. The registrant’s other certifying officers 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 subsidiaries, is made known to us by others within those entities, particularly during the period in which this quarterly 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 quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and;

d. Disclosed in this quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter 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 officers 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 registrant’s board of directors;

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 involve management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 6, 2021	/s/ Barry R. Sloane
	Barry R. Sloane
	Chairman, President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF THE CHIEF FINANCIAL OFFICER OF THE COMPANY

PURSUANT TO SECURITIES EXCHANGE ACT RULES 13A-14 AND 15D-14

I, William P. Hornby, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Century Bancorp, Inc.;

2. Based on my knowledge, this quarterly 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 quarterly report;

3. Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the period presented in this quarterly report;

4. The registrant’s other certifying officers 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 subsidiaries, is made known to us by others within those entities, particularly during the period in which this quarterly 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 quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and;

d. Disclosed in this quarterly report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter 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 officers 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 registrant’s board of directors;

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 involve management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 6, 2021	/s/ William P. Hornby
	William P. Hornby, CPA
	Chief Financial Officer and Treasurer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. Section 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Century Bancorp, Inc. (the “Company”) for the six months ended June 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, certifies, to the best knowledge and belief of the signatory, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report 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 the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Barry R. Sloane

Barry R. Sloane

Chairman, President and Chief Executive Officer

Date: August 6, 2021

A signed original of this written statement required by Section 906 of the Sarbanes-Oxley Act of 2002 or other document authenticating, acknowledging or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906 of the Sarbanes-Oxley Act of 2002 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

The foregoing certification is being furnished solely pursuant to Subsections (a) and (b) of Section 1350 of Chapter 63 of Title 18 of the United States Code in accordance with Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liability of that section, and shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. Section 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Century Bancorp, Inc. (the “Company”) for the six months ended June 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, certifies, to the best knowledge and belief of the signatory, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report 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 the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ William P. Hornby

William P. Hornby, CPA

Chief Financial Officer and Treasurer

Date: August 6, 2021

A signed original of this written statement required by Section 906 of the Sarbanes-Oxley Act of 2002 or other document authenticating, acknowledging or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906 of the Sarbanes-Oxley Act of 2002 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

The foregoing certification is being furnished solely pursuant to Subsections (a) and (b) of Section 1350 of Chapter 63 of Title 18 of the United States Code in accordance with Section 906 of the Sarbanes-Oxley Act of 2002 and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liability of that section, and shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934.

XML

Cover Page - shares	6 Months Ended
	Jun. 30, 2021	Jul. 31, 2021
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Registrant Name	CENTURY BANCORP, INC.
Entity Central Index Key	0000812348
Entity Filer Category	Accelerated Filer
Entity Tax Identification Number	04-2498617
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Trading Symbol	CNBKA
Entity Address, State or Province	MA
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	0-15752
Entity Incorporation, State or Country Code	MA
Entity Address, City or Town	MEDFORD
Entity Address, Address Line One	400 MYSTIC AVENUE
Entity Address, Postal Zip Code	02155
City Area Code	781
Local Phone Number	391-4000
Title of 12(b) Security	Class A Common Stock
Security Exchange Name	NASDAQ
Class A Common Stock [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		3,661,569
Class B Common Stock [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		1,906,340

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets
Cash and due from banks	$ 101,001	$ 136,735
Federal funds sold and interest-bearing deposits in other banks	384,454	237,265
Total cash and cash equivalents	485,455	374,000
Securities available-for-sale, amortized cost $230,285 and $282,273, respectively	232,033	282,448
Securities held-to-maturity, fair value $3,360,731 and $2,579,103, respectively	3,350,561	2,509,088
Federal Home Loan Bank of Boston, stock at cost	11,594	13,361
Equity securities, amortized cost $1,635 and $1,635, respectively	1,697	1,668
Loans, net:
Total loans, net	2,999,133	2,995,829
Less: allowance for loan losses	34,949	35,486
Net loans	2,964,184	2,960,343
Bank premises and equipment	40,824	39,062
Accrued interest receivable	13,122	13,283
Goodwill	2,714	2,714
Other assets	161,830	162,867
Total assets	7,264,014	6,358,834
Deposits:
Demand deposits	1,183,266	1,103,878
Savings and NOW deposits	2,454,287	1,728,092
Money market accounts	2,302,147	2,074,108
Time deposits	433,479	546,143
Total deposits	6,373,179	5,452,221
Securities sold under agreements to repurchase	248,302	232,090
Other borrowed funds	119,029	177,009
Subordinated debentures	36,083	36,083
Due to broker	800
Other liabilities	94,066	91,022
Total liabilities	6,871,459	5,988,425
Stockholders' Equity
Preferred Stock – $1.00 par value; 100,000 shares authorized; no shares issued and outstanding
Additional paid-in capital	12,292	12,292
Retained earnings	398,630	378,699
Stockholders' equity before adjustment of accumulated other comprehensive income (loss)	416,490	396,559
Unrealized gains on securities available-for-sale, net of taxes	1,270	130
Unrealized losses on securities transferred to held-to-maturity, net of taxes	(958)	(1,221)
Pension liability, net of taxes	(24,247)	(25,059)
Total accumulated other comprehensive loss, net of taxes	(23,935)	(26,150)
Total stockholders' equity	392,555	370,409
Total liabilities and stockholders' equity	7,264,014	6,358,834
Construction and land development [Member]
Loans, net:
Total loans, net	6,404	10,909
Commercial and industrial [Member]
Loans, net:
Total loans, net	1,296,399	1,314,245
Municipal [Member]
Loans, net:
Total loans, net	138,771	137,607
Commercial real estate [Member]
Loans, net:
Total loans, net	813,163	789,836
Residential real estate [Member]
Loans, net:
Total loans, net	471,671	448,436
Consumer and overdrafts [Member]
Loans, net:
Total loans, net	20,611	20,439
Home equity [Member]
Loans, net:
Total loans, net	252,114	274,357
Class A Common Stock [Member]
Stockholders' Equity
Common stock value	3,662	3,656
Total stockholders' equity	3,662	3,656
Class B Common Stock [Member]
Stockholders' Equity
Common stock value	1,906	1,912
Total stockholders' equity	$ 1,906	$ 1,912

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Amortized cost	$ 230,285	$ 282,273
Held-to-maturity securities, fair value	3,360,731	2,579,103
Equity securities, amortized cost	$ 1,635	$ 1,635
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	100,000	100,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Class A Common Stock [Member]
Common stock, par value	$ 1.00	$ 1.00
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	3,661,569	3,655,469
Class B Common Stock [Member]
Common stock, par value	$ 1.00	$ 1.00
Common stock, shares authorized	5,000,000	5,000,000
Common stock, shares issued	1,906,340	1,912,440

XML

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest income
Loans	$ 20,888	$ 19,848	$ 42,493	$ 42,047
Securities held-to-maturity	14,113	15,222	27,230	30,515
Securities available-for-sale	557	982	1,187	2,675
Federal funds sold and interest-bearing deposits in other banks	112	68	291	678
Total interest income	35,670	36,120	71,201	75,915
Interest expense
Savings and NOW deposits	753	2,118	1,871	5,843
Money market accounts	2,489	3,462	5,375	9,034
Time deposits	1,115	3,111	2,696	6,283
Securities sold under agreements to repurchase	98	309	239	935
Other borrowed funds and subordinated debentures	1,224	1,302	2,462	2,801
Total interest expense	5,679	10,302	12,643	24,896
Net interest income	29,991	25,818	58,558	51,019
(Credit) provision for loan losses		1,700	(550)	2,775
Net interest income after (credit) provision for loan losses	29,991	24,118	59,108	48,244
Other operating income
Service charges on deposit accounts	2,171	2,023	4,389	4,319
Lockbox fees	966	924	1,962	1,854
Other income	969	1,094	1,958	2,178
Total other operating income	4,106	4,041	8,309	8,351
Operating expenses
Salaries and employee benefits	12,302	10,287	24,552	21,658
Occupancy	1,591	1,456	3,293	2,971
Equipment	931	962	1,880	1,799
FDIC Assessments	757	310	1,229	310
Other	5,431	4,027	10,929	8,477
Total operating expenses	21,012	17,042	41,883	35,215
Income before income taxes	13,085	11,117	25,534	21,380
Provision for income taxes	2,262	1,061	3,941	1,658
Net income	$ 10,823	$ 10,056	$ 21,593	$ 19,722
Class A Common Stock [Member]
Share data:
Weighted average number of shares outstanding, basic	3,661,569	3,652,469	3,659,019	3,652,409
Weighted average number of shares outstanding, diluted	5,567,909	5,567,909	5,567,909	5,567,909
Basic earnings per share	$ 2.35	$ 2.18	$ 4.68	$ 4.28
Diluted earnings per share	$ 1.94	$ 1.81	$ 3.88	$ 3.54
Class B Common Stock [Member]
Share data:
Weighted average number of shares outstanding, basic	1,906,340	1,915,440	1,908,890	1,915,500
Weighted average number of shares outstanding, diluted	1,906,340	1,915,440	1,908,890	1,915,500
Basic earnings per share	$ 1.17	$ 1.09	$ 2.34	$ 2.14
Diluted earnings per share	$ 1.17	$ 1.09	$ 2.34	$ 2.14

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 10,823	$ 10,056	$ 21,593	$ 19,722
Unrealized gains (losses) on securities:
Unrealized gains (losses) arising during period	676	1,490	1,140	(41)
Less: reclassification adjustment for gains included in net income	0	0	0	0
Total unrealized gains (losses) on securities	676	1,490	1,140	(41)
Accretion of net unrealized losses transferred	149	162	263	326
Defined benefit pension plans:
Amortization of prior service cost and loss included in net periodic benefit cost	406	361	812	721
Other comprehensive income	1,231	2,013	2,215	1,006
Comprehensive income	$ 12,054	$ 12,069	$ 23,808	$ 20,728

XML

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Class A Common Stock [Member]	Class B Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Retained Earnings [Member] Class A Common Stock [Member]	Retained Earnings [Member] Class B Common Stock [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning balance at Dec. 31, 2019	$ 332,581	$ 3,651	$ 1,917	$ 12,292	$ 338,980			$ (24,259)
Net income	19,722				19,722
Other comprehensive income, net of tax:
Unrealized holding gains (losses) arising during period, net of taxes	(41)							(41)
Accretion of unrealized losses on securities transferred to held-to-maturity, net of taxes	326							326
Pension liability adjustment, net of taxes	721							721
Conversion of Class B Common Stock to Class A Common Stock		2	(2)
Cash dividends		(877)	(230)			$ (877)	$ (230)
Ending balance at Jun. 30, 2020	352,202	3,653	1,915	12,292	357,595			(23,253)
Beginning balance at Mar. 31, 2020	340,687	3,652	1,916	12,292	348,093			(25,266)
Net income	10,056				10,056
Other comprehensive income, net of tax:
Unrealized holding gains (losses) arising during period, net of taxes	1,490							1,490
Accretion of unrealized losses on securities transferred to held-to-maturity, net of taxes	162							162
Pension liability adjustment, net of taxes	361							361
Conversion of Class B Common Stock to Class A Common Stock		1	(1)
Cash dividends		(439)	(115)			(439)	(115)
Ending balance at Jun. 30, 2020	352,202	3,653	1,915	12,292	357,595			(23,253)
Beginning balance at Dec. 31, 2020	370,409	3,656	1,912	12,292	378,699			(26,150)
Net income	21,593				21,593
Other comprehensive income, net of tax:
Unrealized holding gains (losses) arising during period, net of taxes	1,140							1,140
Accretion of unrealized losses on securities transferred to held-to-maturity, net of taxes	263							263
Pension liability adjustment, net of taxes	812							812
Conversion of Class B Common Stock to Class A Common Stock		6	(6)
Cash dividends		(1,318)	(344)			(1,318)	(344)
Ending balance at Jun. 30, 2021	392,555	3,662	1,906	12,292	398,630			(23,935)
Beginning balance at Mar. 31, 2021	381,332	3,657	1,911	12,292	388,638			(25,166)
Net income	10,823				10,823
Other comprehensive income, net of tax:
Unrealized holding gains (losses) arising during period, net of taxes	676							676
Accretion of unrealized losses on securities transferred to held-to-maturity, net of taxes	149							149
Pension liability adjustment, net of taxes	406							406
Conversion of Class B Common Stock to Class A Common Stock		5	(5)
Cash dividends		(660)	(171)			$ (660)	$ (171)
Ending balance at Jun. 30, 2021	$ 392,555	$ 3,662	$ 1,906	$ 12,292	$ 398,630			$ (23,935)

XML

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Unrealized holding (losses) gains arising during period, taxes	$ 263	$ 538	$ 433	$ 10
Accretion of net unrealized losses on securities transferred during the period, taxes	65	57	106	115
Pension liability adjustment, taxes	$ 158	$ 141	$ 317	$ 281
Conversion of Class B Common Stock to Class A Common Stock, shares	5,100	120	6,100	1,520
Class A Common Stock [Member]
Cash dividends, per share	$ 0.18	$ 0.12	$ 0.36	$ 0.24
Class B Common Stock [Member]
Cash dividends, per share	$ 0.09	$ 0.06	$ 0.18	$ 0.12

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 21,593	$ 19,722
Adjustments to reconcile net income to net cash provided by operating activities:
Net (gain) loss on equity securities	(29)	19
(Credit) provision for loan losses	(550)	2,775
Deferred income taxes	(948)	(795)
Net depreciation and amortization (accretion)	1,405	(1,029)
Decrease in accrued interest receivable	161	1,020
Decrease in other assets	201	3,337
Increase in other liabilities	5,851	850
Net cash provided by operating activities	27,684	25,899
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from redemptions of Federal Home Loan Bank of Boston stock	1,767	10,701
Purchase of Federal Home Loan Bank of Boston stock		(4,601)
Proceeds from calls/maturities of securities available-for-sale	68,112	34,603
Purchase of securities available-for-sale	(16,055)	(73,093)
Proceeds from calls/maturities of securities held-to-maturity	518,044	319,328
Purchase of securities held-to-maturity	(1,358,830)	(392,637)
Net increase in loans	(3,273)	(371,792)
Bank owned life insurance purchases		(6,000)
Capital expenditures	(3,522)	(4,010)
Net cash used in investing activities	(793,757)	(487,501)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net (decrease) increase in time deposits	(112,664)	55,049
Net increase in demand, savings, money market and NOW deposits	1,033,622	656,808
Cash dividends	(1,662)	(1,107)
Net increase (decrease) in securities sold under agreements to repurchase	16,212	(61,073)
Net decrease in other borrowed funds	(57,980)	(218,470)
Net cash provided by financing activities	877,528	431,207
Net increase (decrease) in cash and cash equivalents	111,455	(30,395)
Cash and cash equivalents at beginning of period	374,000	258,693
Cash and cash equivalents at end of period	485,455	228,298
Cash paid during the period for:
Interest	12,969	25,153
Income taxes	3,580	750
Change in unrealized gains (losses) on securities available-for-sale, net of taxes	1,140	(41)
Change in unrealized losses on securities transferred to held-to-maturity, net of taxes	263	326
Pension liability adjustment, net of taxes	$ 812	$ 721

XML

Basis of Financial Statement Presentation

6 Months Ended

Jun. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Financial Statement Presentation

Note 1. Basis of Financial Statement Presentation

The consolidated financial statements include the accounts of Century Bancorp, Inc. (the “Company”) and its wholly owned subsidiary, Century Bank and Trust Company (the “Bank”). The consolidated financial statements also include the accounts of the Bank’s wholly owned subsidiaries, Century Subsidiary Investments, Inc. (“CSII”), Century Subsidiary Investments, Inc. II (“CSII II”), Century Subsidiary Investments, Inc. III (“CSII III”) and Century Financial Services Inc. (“CFSI”). CSII, CSII II, and CSII III are engaged in buying, selling and holding investment securities. CFSI has the power to engage in financial agency, securities brokerage, and investment and financial advisory services and related securities credit. The Company also owns 100% of Century Bancorp Capital Trust II (“CBCT II”). The entity is an unconsolidated subsidiary of the Company.

All significant intercompany accounts and transactions have been eliminated in consolidation. The Company provides a full range of banking services to individual, business and municipal customers in Massachusetts, New Hampshire, Rhode Island, Connecticut, New York, Virginia, Washington D.C, and Pennsylvania. As a bank holding company, the Company is subject to the regulation and supervision of the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”). The Bank, a state chartered financial institution, is subject to supervision and regulation by applicable state and federal banking agencies, including the Federal Reserve Board, the Federal Deposit Insurance Corporation (the “FDIC”) and the Massachusetts Commissioner of Banks. The Bank is also subject to various requirements and restrictions under federal and state law, including requirements to maintain reserves against deposits, restrictions on the types and amounts of loans that may be granted and the interest that may be charged thereon, and limitations on the types of investments that may be made and the types of services that may be offered. Various consumer laws and regulations also affect the operations of the Bank. In addition to the impact of regulation, commercial banks are affected significantly by the actions of the Federal Reserve Board as it attempts to control the money supply and credit availability in order to influence the economy. All aspects of the Company’s business are highly competitive. The Company faces aggressive competition from other lending institutions and from numerous other providers of financial services. The Company has one reportable operating segment.

The financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America and general practices within the banking industry. In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the period. Actual results could differ from those estimates. The Company’s Quarterly Report on Form 10-Q should be read in conjunction with the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, as filed with the Securities and Exchange Commission and which provides a summary of the Company’s significant accounting principles. The interim results of consolidated operations are not necessarily indicative of the results for the entire year. Certain reclassifications are made to prior-year amounts whenever necessary to conform with the current-year presentation.

Material estimates that are susceptible to change in the near term relate to the allowance for loan losses. Management believes that the allowance for loan losses is adequate based on a review of factors, including historical charge-off rates with additional allocations based on qualitative risk factors for each category and general economic factors. While management uses available information to recognize loan losses, future additions to the allowance for loan losses may be necessary based on changes in economic conditions. Certain risks and uncertainties remain in the allowance for loan losses as a result of the COVID-19 pandemic that occurred during 2020. Future provision levels will be dependent upon the length of the economic disruption and the effectiveness of government programs to mitigate the economic impact. In addition, regulatory agencies periodically review the Company’s allowance for loan losses. Such agencies may require the Company to recognize additions to the allowance for loan losses based on their judgments about information available to them at the time of their examination.

XML

Securities Available-for-Sale

6 Months Ended

Jun. 30, 2021

Text Block [Abstract]

Securities Available-for-Sale

Note 2. Securities Available-for-Sale

	June 30, 2021								December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(in thousands)
SBA Backed Securities	$	40,406	$	660	$	1	$	41,065	$	44,328	$	—	$	289	$	44,039
U.S. Government Agency and Sponsored   Enterprise Mortgage-Backed Securities		154,763		1,003		134		155,632		177,239		819		317		177,741
Privately Issued Residential Mortgage-Backed Securities		269		5		—		274		330		2		4		328
Obligations Issued by States and Political Subdivisions		26,747		—		—		26,747		52,276		—		—		52,276
Other Debt Securities		8,100		224		9		8,315		8,100		24		60		8,064
Total	$	230,285	$	1,892	$	144	$	232,033	$	282,273	$	845	$	670	$	282,448

Included in SBA Backed Securities, and U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities are securities at fair value pledged to secure public deposits and repurchase agreements amounting to $160,723,000 and $183,269,000 at June 30, 2021 and December 31, 2020, respectively. Also included in securities available-for-sale are securities at fair value pledged for borrowing at the Federal Home Loan Bank of Boston (“FHLBB”) amounting to $28,070,000 and $29,885,000 at June 30, 2021 and December 31, 2020, respectively. There were no sales of available-for-sale securities for the six months ended June 30, 2021 and June 30, 2020, respectively.

Debt securities of U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities primarily refer to debt securities of Fannie Mae and Freddie Mac.

The following table shows the maturity distribution of the Company’s securities available-for-sale at June 30, 2021.

	Amortized Cost		Fair Value
	(in thousands)
Within one year	$	28,420	$	28,442
After one but within five years		96,690		97,477
After five but within ten years		91,931		92,687
More than 10 years		13,244		13,427
Total	$	230,285	$	232,033

The weighted average remaining life of investment securities available-for-sale at June 30, 2021 was 5.3 years. The contractual maturities, which were used in the table above, of mortgage-backed securities, will differ from the actual maturities, due to the ability of the issuers to prepay underlying obligations. Also $195,045,000 of the securities are floating rate or adjustable rate and reprice prior to maturity.

As of June 30, 2021 and December 31, 2020, management concluded that the unrealized losses of its investment securities are temporary in nature since they are not related to the underlying credit quality of the issuers, and the Company does not intend to sell these debt securities and it is not more likely than not that it will be required to sell these debt securities before the anticipated recovery of its remaining amortized cost. In making its other-than-temporary impairment evaluation, the Company considered that the principal and interest on these securities are from issuers that are investment grade.

The unrealized loss on SBA Backed Securities, U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities related primarily to interest rates and not credit quality, and because the Company has the ability and intent to hold these investments until recovery of fair value, which may be maturity, the Company does not consider these investments to be other-than-temporarily impaired at June 30, 2021 or December 31, 2020.

In evaluating the underlying credit quality of a security, management considers several factors such as the credit rating of the obligor and the issuer, if applicable. Internal reviews of issuer financial statements are performed as deemed necessary. In the case of privately issued mortgage-backed securities, the performance of the underlying loans is analyzed as deemed necessary to determine the estimated future cash flows of the securities. Factors considered include the level of subordination, current and estimated future default rates, current and estimated prepayment rates, estimated loss severity rates, geographic concentrations and origination dates of underlying loans.

The following table shows the temporarily impaired securities of the Company’s available-for-sale portfolio at June 30, 2021. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for less than 12 months and a continuous loss position for 12 months or longer. There are 1 and 9 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 140 holdings at June 30, 2021.

	June 30, 2021
	Less than 12 months				12 months or longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
SBA Backed Securities	$	—	$	—	$	98	$	1	$	98	$	1
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		—		—		15,742		134		15,742		134
Privately Issued Residential Mortgage-Backed Securities		—		—		—		—		—		—
Obligations Issued by States and Political Subdivisions		—		—		—		—		—		—
Other Debt Securities		1,491		8		100		1		1,591		9
Total temporarily impaired securities	$	1,491	$	8	$	15,940	$	136	$	17,431	$	144

The following table shows the temporarily impaired securities of the Company’s available-for-sale portfolio at December 31, 2020. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for less than 12 months and a continuous loss position for 12 months or longer. There are 13 and 21 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 153 holdings at December 31, 2020.

	December 31, 2020
	Less than 12 months				12 months or longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
SBA Backed Securities	$	13,839	$	42	$	30,200	$	247	$	44,039	$	289
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		18,188		50		33,617		267		51,805		317
Privately Issued Residential Mortgage-Backed Securities		—		—		210		4		210		4
Obligations Issued by States and Political Subdivisions		—		—		—		—		—		—
Other Debt Securities		3,942		58		1,298		2		5,240		60
Total temporarily impaired securities	$	35,969	$	150	$	65,325	$	520	$	101,294	$	670

XML

Investment Securities Held-to-Maturity

6 Months Ended

Jun. 30, 2021

Text Block [Abstract]

Investment Securities Held-to-Maturity

Note 3. Investment Securities Held-to-Maturity

	June 30, 2021								December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
U.S. Government Sponsored Enterprises	$	356,080	$	131	$	5,119	$	351,092	$	244,220	$	389	$	866	$	243,743
SBA Backed Securities		34,626		1,713		—		36,339		37,783		2,002		—		39,785
U.S. Government Sponsored Enterprises Mortgage-Backed Securities		2,959,855		39,856		26,411		2,973,300		2,227,085		69,522		1,032		2,295,575
Total	$	3,350,561	$	41,700	$	31,530	$	3,360,731	$	2,509,088	$	71,913	$	1,898	$	2,579,103

Included in total investment securities held-to-maturity are securities pledged to secure public deposits and repurchase agreements at fair value amounting to $2,315,698,000 and $1,866,989,000 at June 30, 2021 and December 31, 2020, respectively. Also included are securities pledged for borrowing at the FHLBB at fair value amounting to $729,455,000 and $537,367,000 at June 30, 2021 and December 31, 2020, respectively. There were no sales of held-to-maturity securities for the six months ended June 30, 2021 or June 30, 2020, respectively.

At June 30, 2021 and December 31, 2020, all mortgage-backed securities are obligations of U.S. Government Sponsored Enterprises. Debt securities of U.S. Government Sponsored Enterprises and U.S. Government Sponsored Enterprises Mortgage-Backed Securities primarily refer to debt securities of Fannie Mae and Freddie Mac.

The following table shows the maturity distribution of the Company’s securities held-to-maturity at June 30, 2021.

	Amortized Cost		Fair Value
	(in thousands)
Within one year	$	53,832	$	54,279
After one but within five years		1,889,085		1,914,143
After five but within ten years		1,407,644		1,392,309
More than ten years		—		—
Total	$	3,350,561	$	3,360,731

The weighted average remaining life of investment securities held-to-maturity at June 30, 2021 was 4.7 years. Included in the weighted average remaining life calculation at June 30, 2021 were $265,612,000 of U.S. Government Sponsored Enterprises obligations that are callable at the discretion of the issuer. The contractual maturities, which were used in the table above, of mortgage-backed securities, will differ from the actual maturities, due to the ability of the issuers to prepay underlying obligations. Also $72,000 of the securities are floating rate or adjustable rate and reprice prior to maturity.

As of June 30, 2021 and December 31, 2020, management concluded that the unrealized losses of its investment securities are temporary in nature since they are not related to the underlying credit quality of the issuers, and the Company does not intend to sell these debt securities and it is not more likely than not that it will be required to sell these debt securities before the anticipated recovery of their remaining amortized costs. In making its other-than-temporary impairment evaluation, the Company considered the fact that the principal and interest on these securities are from issuers that are investment grade.

The unrealized loss on U.S. Government Sponsored Enterprises, SBA Backed Securities, and U.S. Government Sponsored Enterprises Mortgage-Backed Securities related primarily to interest rates and not credit quality, and because the Company does not intend to sell any of these securities and it is not more likely than not that it will be required to sell these securities before the anticipated recovery of the remaining amortized cost, the Company does not consider these investments to be other-than-temporarily impaired at June 30, 2021 or December 31, 2020. In evaluating the underlying credit quality of a security, management considers several factors such as the credit rating of the obligor and the issuer, if applicable. Internal reviews of issuer financial statements are performed as deemed necessary.

The following table shows the temporarily impaired securities of the Company’s held-to-maturity portfolio June 30, 2021. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for 12 months or less and a continuous loss position for 12 months or longer. There are 168 and 1 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 659 holdings at June 30, 2021.

	June 30, 2021
	Less Than 12 Months				12 Months or Longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
US Government Sponsored Enterprises	$	140,480	$	5,119	$	—	$	—	$	140,480	$	5,119
SBA Backed Securities		—		—		—		—		—		—
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		375,533		26,384		2,491		27		378,024		26,411
Total temporarily impaired securities	$	516,013	$	31,503	$	2,491	$	27	$	518,504	$	31,530

The following table shows the temporarily impaired securities of the Company’s held-to-maturity portfolio at December 31, 2020. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for less than 12 months and a continuous loss position for 12 months or longer. There are 53 and 0 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 600 holdings at December 31, 2020.

	December 31, 2020
	Less Than 12 Months				12 Months or Longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
U.S. Government Sponsored Enterprises	$	162,870	$	866	$	—	$	—	$	162,870	$	866
SBA Backed Securities		—		—		—		—		—		—
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		302,401		1,032		—		—		302,401		1,032
Total temporarily impaired securities	$	465,271	$	1,898	$	—	$	—	$	465,271	$	1,898

XML

Allowance for Loan Losses

6 Months Ended

Jun. 30, 2021

Receivables [Abstract]

Allowance for Loan Losses

Note 4. Allowance for Loan Losses

The Company maintains an allowance for loan losses in an amount determined by management on the basis of the character of the loans, loan performance, financial condition of borrowers, the value of collateral securing loans and other relevant factors.

The following table summarizes the changes in the Company’s allowance for loan losses for the periods indicated.

	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
	(in thousands)						(in thousands)
Allowance for loan losses, beginning of period	$	34,952		$	30,804		$	35,486		$	29,585
Loans charged off		(29	)		(17	)		(96	)		(79	)
Recoveries on loans previously charged-off		26			29			109			235
Net recoveries (charge-offs)		(3	)		12			13			156
(Credit) provision charged to expense		—			1,700			(550	)		2,775
Allowance for loan losses, end of period	$	34,949		$	32,516		$	34,949		$	32,516

Further information pertaining to the allowance for loan losses for the three months ending June 30, 2021 is as follows:

	Construction and Land Development			Commercial and Industrial		Municipal			Commercial Real Estate		Residential Real Estate			Consumer			Home Equity			Unallocated		Total
Allowance for loan losses:	(in thousands)
Balance at March 31, 2021	$	293		$	16,470	$	2,837		$	11,655	$	2,067		$	194		$	1,049		$	387	$	34,952
Charge-offs		—			—		—			—		—			(29	)		—			—		(29	)
Recoveries		—			2		—			—		—			24			—			—		26
Provision (credit)		(73	)		30		(20	)		53		(38	)		15			(92	)		125		—
Ending balance at June 30, 2021	$	220		$	16,502	$	2,817		$	11,708	$	2,029		$	204		$	957		$	512	$	34,949
Amount of allowance for loan losses for loans deemed to be impaired	$	—		$	9	$	—		$	74	$	—		$	—		$	—		$	—	$	83
Amount of allowance for loan losses for loans not deemed to be impaired	$	220		$	16,493	$	2,817		$	11,634	$	2,029		$	204		$	957		$	512	$	34,866
Loans:
Ending balance	$	6,404		$	1,296,399	$	138,771		$	813,163	$	471,671		$	20,611		$	252,114		$	—	$	2,999,133
Loans deemed to be impaired	$	—		$	224	$	—		$	2,271	$	—		$	—		$	—		$	—	$	2,495
Loans not deemed to be impaired	$	6,404		$	1,296,175	$	138,771		$	810,892	$	471,671		$	20,611		$	252,114		$	—	$	2,996,638

Further information pertaining to the allowance for loan losses for the six months ending June 30, 2021 is as follows:

	Construction and Land Development			Commercial and Industrial			Municipal		Commercial Real Estate			Residential Real Estate			Consumer			Home Equity			Unallocated		Total
Allowance for loan losses:	(in thousands)
Balance at December 31, 2020	$	429		$	16,713		$	2,804	$	11,751		$	2,111		$	241		$	1,208		$	229	$	35,486
Charge-offs		—			—			—		—			—			(96	)		—			—		(96	)
Recoveries		—			5			—		—			—			104			—			—		109
Provision (credit)		(209	)		(216	)		13		(43	)		(82	)		(45	)		(251	)		283		(550	)
Ending balance at June 30, 2021	$	220		$	16,502		$	2,817	$	11,708		$	2,029		$	204		$	957		$	512	$	34,949
Amount of allowance for loan losses for loans deemed to be impaired	$	—		$	9		$	—	$	74		$	—		$	—		$	—		$	—	$	83
Amount of allowance for loan losses for loans not deemed to be impaired	$	220		$	16,493		$	2,817	$	11,634		$	2,029		$	204		$	957		$	512	$	34,866
Loans:
Ending balance	$	6,404		$	1,296,399		$	138,771	$	813,163		$	471,671		$	20,611		$	252,114		$	—	$	2,999,133
Loans deemed to be impaired	$	—		$	224		$	—	$	2,271		$	—		$	—		$	—		$	—	$	2,495
Loans not deemed to be impaired	$	6,404		$	1,296,175		$	138,771	$	810,892		$	471,671		$	20,611		$	252,114		$	—	$	2,996,638

There was a credit to the provision for losses of $550,000 for the six months ended June 30, 2021. The credit provision for the first six months of 2021 was primarily attributable to a reduction in specific allocations to the allowance for loan losses and a reduction in the historical experience reserve allocation.

Further information pertaining to the allowance for loan losses for the three months ending June 30, 2020 is as follows:

	Construction and Land Development		Commercial and Industrial			Municipal			Commercial Real Estate		Residential Real Estate		Consumer			Home Equity		Unallocated			Total
Allowance for loan losses:	(in thousands)
Balance at March 31, 2020	$	246	$	12,428		$	2,889		$	11,121	$	2,449	$	296		$	1,137	$	238		$	30,804
Charge-offs		—		(6	)		—			—		—		(11	)		—		—			(17	)
Recoveries		—		6			—			—		—		23			—		—			29
Provision		43		693			(21	)		182		645		(19	)		328		(151	)		1,700
Ending balance at June 30, 2020	$	289	$	13,121		$	2,868		$	11,303	$	3,094	$	289		$	1,465	$	87		$	32,516
Amount of allowance for loan losses for loans deemed to be impaired	$	—	$	15		$	—		$	80	$	—	$	—		$	—	$	—		$	95
Amount of allowance for loan losses for loans not deemed to be impaired	$	289	$	13,106		$	2,868		$	11,223	$	3,094	$	289		$	1,465	$	87		$	32,421
Loans:
Ending balance	$	6,513	$	1,155,592		$	153,017		$	764,886	$	400,867	$	19,857		$	297,355	$	—		$	2,798,087
Loans deemed to be impaired	$	—	$	180		$	—		$	2,716	$	235	$	—		$	—	$	—		$	3,131
Loans not deemed to be impaired	$	6,513	$	1,155,412		$	153,017		$	762,170	$	400,632	$	19,857		$	297,355	$	—		$	2,794,956

Further information pertaining to the allowance for loan losses for the six months ending June 30, 2020 is as follows:

	Construction and Land Development			Commercial and Industrial			Municipal		Commercial Real Estate			Residential Real Estate		Consumer			Home Equity		Unallocated		Total
Allowance for loan losses:	(in thousands)
Balance at December 31, 2019	$	331		$	11,596		$	2,566	$	11,464		$	2,194	$	312		$	1,065	$	57	$	29,585
Charge-offs		—			(11	)		—		—			—		(68	)		—		—		(79	)
Recoveries		—			170			—		—			—		60			5		—		235
Provision		(42	)		1,366			302		(161	)		900		(15	)		395		30		2,775
Ending balance at June 30, 2020	$	289		$	13,121		$	2,868	$	11,303		$	3,094	$	289		$	1,465	$	87	$	32,516
Amount of allowance for loan losses for loans deemed to be impaired	$	—		$	15		$	—	$	80		$	—	$	—		$	—	$	—	$	95
Amount of allowance for loan losses for loans not deemed to be impaired	$	289		$	13,106		$	2,868	$	11,223		$	3,094	$	289		$	1,465	$	87	$	32,421
Loans:
Ending balance	$	6,513		$	1,155,592		$	153,017	$	764,886		$	400,867	$	19,857		$	297,355	$	—	$	2,798,087
Loans deemed to be impaired	$	—		$	180		$	—	$	2,716		$	235	$	—		$	—	$	—	$	3,131
Loans not deemed to be impaired	$	6,513		$	1,155,412		$	153,017	$	762,170		$	400,632	$	19,857		$	297,355	$	—	$	2,794,956

There was a provision for loan losses of $2,775,000 for the six months ended June 30, 2020. The provision for the first six months of 2020 was primarily a result of provisions related to the onset of the COVID-19 pandemic.

The Company utilizes a six-grade internal loan rating system for commercial real estate, construction, commercial, and municipal loans as follows:

Loans rated 1-3 (Pass):

Loans in this category are considered “pass” rated loans with low to average risk.

Loans rated 4 (Monitor):

These loans represent classified loans that management is closely monitoring for credit quality. These loans have had or may have minor credit quality deterioration as of June 30, 2021 and December 31, 2020.

Loans rated 5 (Substandard):

Substandard loans represent classified loans that management is closely monitoring for credit quality. These loans have had more significant credit quality deterioration as of June 30, 2021 and December 31, 2020.

Loans rated 6 (Doubtful):

Doubtful loans represent classified loans that management is closely monitoring for credit quality. These loans had more significant credit quality deterioration as of June 30, 2021 and December 31, 2020 and full collectability is doubtful.

Impaired:

Impaired loans represent classified loans that management is closely monitoring for credit quality. A loan is classified as impaired when it is probable that the Company will be unable to collect all amounts due.

The following table presents the Company’s loans by risk rating at June 30, 2021.

	Construction and Land Development		Commercial and Industrial		Municipal		Commercial Real Estate
	(in thousands)
Grade:
1-3 (Pass)	$	6,404	$	1,292,230	$	138,771	$	787,676
4 (Monitor)		—		3,945		—		23,216
5 (Substandard)		—		—		—		—
6 (Doubtful)		—		—		—		—
Impaired		—		224		—		2,271
Total	$	6,404	$	1,296,399	$	138,771	$	813,163

The following table presents the Company’s loans by risk rating at December 31, 2020.

	Construction and Land Development		Commercial and Industrial		Municipal		Commercial Real Estate
	(in thousands)
Grade:
1-3 (Pass)	$	10,909	$	1,309,861	$	137,607	$	761,101
4 (Monitor)		—		3,945		—		23,795
5 (Substandard)		—		—		—		—
6 (Doubtful)		—		—		—		—
Impaired		—		439		—		4,940
Total	$	10,909	$	1,314,245	$	137,607	$	789,836

Credit ratings issued by national organizations were utilized as credit quality indicators as presented in the following table at June 30, 2021 and are included within the total loan portfolio.

	Commercial and Industrial		Municipal		Commercial Real Estate		Total
	(in thousands)
Credit Rating:
Aaa – Aa3	$	761,705	$	75,825	$	36,184	$	873,714
A1 – A3		181,928		6,983		143,001		331,912
Baa1 – Baa3		50,000		51,133		145,513		246,646
Ba2		—		4,830		—		4,830
Total	$	993,633	$	138,771	$	324,698	$	1,457,102

Credit ratings issued by national organizations were utilized as credit quality indicators as presented in the following table at December 31, 2020.

	Commercial and Industrial		Municipal		Commercial Real Estate		Total
	(in thousands)
Credit Rating:
Aaa – Aa3	$	710,955	$	74,291	$	38,035	$	823,281
A1 – A3		183,123		7,103		145,583		335,809
Baa1 – Baa3		50,000		51,133		140,905		242,038
Ba2		—		5,080		—		5,080
Total	$	944,078	$	137,607	$	324,523	$	1,406,208

The Company utilized payment performance as credit quality indicators for the loan types listed below.

Further information pertaining to the allowance for loan losses at June 30, 2021 follows:

	Accruing 30-89 Days Past Due		Non Accrual		Accruing Greater than 90 Days		Total Past Due		Current Loans		Total
	(in thousands)
Construction and land development	$	—	$	—	$	—	$	—	$	6,404	$	6,404
Commercial and industrial		11		164		—		175		1,296,224		1,296,399
Municipal		—		—		—		—		138,771		138,771
Commercial real estate		—		251		—		251		812,912		813,163
Residential real estate		715		633		—		1,348		470,323		471,671
Consumer and overdrafts		10		—		—		10		20,601		20,611
Home equity		685		222		—		907		251,207		252,114
Total	$	1,421	$	1,270	$	—	$	2,691	$	2,996,442	$	2,999,133

Further information pertaining to the allowance for loan losses at December 31, 2020 follows:

	Accruing 30-89 Days Past Due		Non Accrual		Accruing Greater than 90 Days		Total Past Due		Current Loans		Total
	(in thousands)
Construction and land development	$	—	$	—	$	—	$	—	$	10,909	$	10,909
Commercial and industrial		56		297		90		443		1,313,802		1,314,245
Municipal		—		—		—		—		137,607		137,607
Commercial real estate		—		2,881		—		2,881		786,955		789,836
Residential real estate		390		527		—		917		447,519		448,436
Consumer and overdrafts		21		1		—		22		20,417		20,439
Home equity		1,001		290		—		1,291		273,066		274,357
Total	$	1,468	$	3,996	$	90	$	5,554	$	2,990,275	$	2,995,829

Impaired Loans

A loan is impaired when, based on current information and events, it is probable that a creditor will be unable to collect all amounts due according to the contractual terms of the loan agreement. When a loan is impaired, the Company measures impairment based on the present value of expected future cash flows discounted at the loan’s effective interest rate, except that as a practical expedient, the Company measures impairment based on a loan’s observable market price or the fair value of the collateral if the loan is collateral dependent. Loans are charged-off when management believes that the collectability of the loan’s principal is not probable. The specific factors that management considers in making the determination that the collectability of the loan’s principal is not probable include: the delinquency status of the loan, the fair value of the collateral, if secured, and the financial strength of the borrower and/or guarantors. For collateral dependent loans, the amount of the recorded investment in a loan that exceeds the fair value of the collateral is charged-off against the allowance for loan losses in lieu of an allocation of a specific allowance amount when such an amount has been identified definitively as uncollectible. The Company’s policy for recognizing interest income on impaired loans is contained within Note 1 of the consolidated financial statements contained in the Company’s Annual Report for the fiscal year ended December 31, 2020.

The following is information pertaining to impaired loans for June 30, 2021:

	Carrying Value		Unpaid Principal Balance		Required Reserve		Average Carrying Value for 3 Months Ending 6/30/2021		Interest Income Recognized for 3 Months Ending 6/30/2021		Average Carrying Value for 6 Months Ending 6/30/2021		Interest Income Recognized for 6 Months Ending 6/30/2021
	(in thousands)
With no required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		—		—		—		1		—		4		—
Municipal		—		—		—		—		—		—		—
Commercial real estate		251		287		—		256		—		261		—
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	251	$	287	$	—	$	257	$	—	$	265	$	—
With required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		224		243		9		321		1		347		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,020		2,152		74		2,029		21		2,785		41
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	2,244	$	2,395	$	83	$	2,350	$	22	$	3,132	$	43
Total:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		224		243		9		322		1		351		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,271		2,439		74		2,285		21		3,046		41
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	2,495	$	2,682	$	83	$	2,607	$	22	$	3,397	$	43

The following is information pertaining to impaired loans for June 30, 2020:

	Carrying Value		Unpaid Principal Balance		Required Reserve		Average Carrying Value for 3 Months Ending 6/30/2020		Interest Income Recognized for 3 Months Ending 6/30/2020		Average Carrying Value for 6 Months Ending 6/30/2020		Interest Income Recognized for 6 Months Ending 6/30/2020
	(in thousands)
With no required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		77		97		—		213		1		380		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		612		645		—		346		—		266		—
Residential real estate		235		235		—		118		—		67		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	924	$	977	$	—	$	677	$	1	$	713	$	2
With required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		103		103		15		78		1		94		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,104		2,227		80		2,147		22		2,161		44
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	2,207	$	2,330	$	95	$	2,225	$	23	$	2,255	$	46
Total:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		180		200		15		291		2		474		4
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,716		2,872		80		2,493		22		2,427		44
Residential real estate		235		235		—		118		—		67		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	3,131	$	3,307	$	95	$	2,902	$	24	$	2,968	$	48

Troubled debt restructurings (“TDR”) are identified as modifications in which a concession was granted to a customer who was having financial difficulties. This concession may be below market rate, longer amortization/term, or a lower payment amount. The present value calculation of the modifications did not result in an increase in the allowance for these loans beyond any previously established allocations.

There were no TDRs made during the six-month period ended June 30, 2021. Also, there were no commitments to lend additional funds to TDR borrowers. There were no TDRs that subsequently defaulted during the first six months of 2021.

Under Section 4013 of the CARES Act, loans less than 30 days past due as of December 31, 2019 will be considered current for COVID-19 modifications. The Company can then suspend the requirements under GAAP for loan modifications related to COVID-19 that would otherwise be categorized as a TDR and suspend any determination of a loan modified as a result of COVID-19 as being a TDR, including the requirement to determine impairment for accounting purposes.

As of June 30, 2021, and as a result of COVID-19 loan modifications, the Company had modifications of 4 loans aggregating $16,508,000, primarily consisting of short-term payment deferrals. Of these modifications, $16,508,000, or 100%, were performing in accordance with their modified terms.

There were no TDRs made during the six-month period ended June 30, 2020. Also, there were no commitments to lend additional funds to TDR borrowers. There were no TDRs that subsequently defaulted during the first six months of 2020.

XML

Reclassifications Out of Accumulated Other Comprehensive Income

6 Months Ended

Jun. 30, 2021

Text Block [Abstract]

Reclassifications Out of Accumulated Other Comprehensive Income

Note 5. Reclassifications Out of Accumulated Other Comprehensive Income (a)

Amount Reclassified from Accumulated Other Comprehensive Income

Details about Accumulated Other Comprehensive Income Components	Three Months Ended June 30, 2021				Three Months Ended June 30, 2020				Affected Line Item in the Statement where Net Income is Presented
	(in thousands)
Unrealized gains and losses on available-for-sale securities	$	—			$	—			Net gains on sales of investments
		—				—			Provision for income taxes
	$	—			$	—			Net income
Accretion of unrealized losses transferred	$	(214	)		$	(219	)		Interest on securities held-to- maturity
		65				57			Provision for income taxes
	$	(149	)		$	(162	)		Net income
Amortization of defined benefit pension items
Prior-service costs	$	(54	)	(b)	$	(29	)	(b)	Salaries and employee benefits
Actuarial gains (losses)		(510	)	(b)		(473	)	(b)	Salaries and employee benefits
Total before tax		(564	)			(502	)		Income before taxes
Tax (expense) or benefit		158				141			Provision for income taxes
Net of tax	$	(406	)		$	(361	)		Net income

Details about Accumulated Other Comprehensive Income Components	Six Months Ended June 30, 2021				Six Months Ended June 30, 2020				Affected Line Item in the Statement where Net Income is Presented
	(in thousands)
Unrealized gains and losses on available-for-sale securities	$	—			$	—			Net gains on sales of investments
		—				—			Provision for income taxes
	$	—			$	—			Net income
Accretion of unrealized losses transferred	$	(369	)		$	(441	)		Interest on securities held-to- maturity
		106				115			Provision for income taxes
	$	(263	)		$	(326	)		Net income
Amortization of defined benefit pension items
Prior-service costs	$	(108	)	(b)	$	(58	)	(b)	Salaries and employee benefits
Actuarial gains (losses)		(1,021	)	(b)		(944	)	(b)	Salaries and employee benefits
Total before tax		(1,129	)			(1,002	)		Income before taxes
Tax (expense) or benefit		317				281			Provision for income taxes
Net of tax	$	(812	)		$	(721	)		Net income

(a) Amount in parentheses indicates reductions to net income.

(b) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Employee Benefits footnote (Note 7) for additional details).

XML

Earnings Per Share ("EPS")

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Earnings Per Share ("EPS")

Note 6. Earnings per Share (“EPS”)

Class A and Class B shares participate equally in undistributed earnings. Under the Company’s Articles of Organization, the holders of Class A Common Stock are entitled to receive dividends per share equal to at least 200% of dividends paid, if any, from time to time, on each share of Class B Common Stock.

Diluted EPS includes the dilutive effect of common stock equivalents and assumes the conversion of all Class B common stock; basic EPS excludes all common stock equivalents. The Company had no common stock equivalents outstanding for the periods ended June 30, 2021 and 2020.

The following table is a reconciliation of basic EPS and diluted EPS.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands except share and per share data)	2021		2020		2021		2020
Basic EPS Computation:
Numerator:
Net income, Class A	$	8,588	$	7,967	$	17,126	$	15,618
Net income, Class B		2,235		2,089		4,467		4,104
Denominator:
Weighted average shares outstanding, Class A		3,661,569		3,652,469		3,659,019		3,652,409
Weighted average shares outstanding, Class B		1,906,340		1,915,440		1,908,890		1,915,500
Basic EPS, Class A	$	2.35	$	2.18	$	4.68	$	4.28
Basic EPS, Class B		1.17		1.09		2.34		2.14
Diluted EPS Computation:
Numerator:
Net income, Class A	$	8,588	$	7,967	$	17,126	$	15,618
Net income, Class B		2,235		2,089		4,467		4,104
Total net income, for diluted EPS, Class A computation		10,823		10,056		21,593		19,722
Denominator:
Weighted average shares outstanding, basic, Class A		3,661,569		3,652,469		3,659,019		3,652,409
Weighted average shares outstanding, Class B		1,906,340		1,915,440		1,908,890		1,915,500
Weighted average shares outstanding diluted, Class A		5,567,909		5,567,909		5,567,909		5,567,909
Weighted average shares outstanding, Class B		1,906,340		1,915,440		1,908,890		1,915,500
Diluted EPS, Class A	$	1.94	$	1.81	$	3.88	$	3.54
Diluted EPS, Class B		1.17		1.09		2.34		2.14

XML

Employee Benefits

6 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Employee Benefits

Note 7. Employee Benefits

The Company provides pension benefits to its employees under a noncontributory, defined benefit plan which is funded on a current basis in compliance with the requirements of the Employee Retirement Income Security Act of 1974 (“ERISA”) and recognizes costs over the estimated employee service period.

The Company also has the Century Bancorp, Inc. Supplemental Executive Retirement and Insurance Plan (the “Supplemental Plan”) which is limited to certain officers and employees of the Company. The Supplemental Plan is accrued on a current basis and recognizes costs over the estimated employee service period.

Executive officers of the Company and its subsidiaries who have at least one year of service may participate in the Supplemental Plan. The Supplemental Plan is voluntary, and participants are required to contribute to its cost. Life insurance policies, which are owned by the Company, are purchased covering the lives of each participant.

Components of Net Periodic Benefit Cost for the Three Months Ended June 30,

	Pension Benefits						Supplemental Insurance/ Retirement Plan
	2021			2020			2021		2020
	(in thousands)
Service cost	$	379		$	344		$	363	$	353
Interest		434			450			434		466
Expected return on plan assets		(1,062	)		(952	)		—		—
Recognized prior service cost (benefit)		—			—			54		29
Recognized net actuarial losses		241			261			269		212
Net periodic benefit (credit) cost	$	(8	)	$	103		$	1,120	$	1,060

Components of Net Periodic Benefit Cost for the Six Months Ended June 30,

	Pension Benefits						Supplemental Insurance/ Retirement Plan
	2021			2020			2021		2020
	(in thousands)
Service cost	$	758		$	688		$	725	$	706
Interest		868			900			869		932
Expected return on plan assets		(2,123	)		(1,904	)		—		—
Recognized prior service cost (benefit)		—			—			108		58
Recognized net actuarial losses		482			522			539		422
Net periodic benefit (credit) cost	$	(15	)	$	206		$	2,241	$	2,118

Approximately $743,000 and $930,000 of costs other than service costs, from the table above, are included in other expenses with the remaining cost included in salaries and employee benefits, for the six months ended June 30, 2021 and 2020, respectively.

Contributions

The Company has contributed $1,302,000 to the Defined Benefit Pension Plan in 2021.

XML

Fair Value Measurements

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note 8. Fair Value Measurements

The Company follows FASB ASC 820-10, Fair Value Measurements and Disclosures and ASU 2016-1, “Financial Instruments-Overall” (Subtopic 825-10) Recognition and Measurement of Financial Assets and Financial Liabilities, which among other things, requires enhanced disclosures about assets and liabilities carried at fair value. ASC 820-10 establishes a hierarchal disclosure framework associated with the level of pricing observability utilized in measuring financial instruments at fair value. The three broad levels of the hierarchy are as follows:

Level I – Quoted prices are available in active markets for identical assets or liabilities as of the reported date. The type of financial instruments included in Level I are highly liquid cash instruments with quoted prices such as G-7 government, agency securities, listed equities and money market securities, as well as listed derivative instruments.

Level II – Pricing inputs are other than quoted prices in active markets, which are either directly or indirectly observable as of the reported date. The nature of these financial instruments include cash instruments for which quoted prices are available but traded less frequently, derivative instruments whose fair value have been derived using a model where inputs to the model are directly observable in the market or can be derived principally from or corroborated by observable market data, and instruments that are fair valued using other financial instruments, the parameters of which can be directly observed. Instruments which are generally included in this category are corporate bonds and loans, mortgage whole loans, municipal bonds, and OTC derivatives.

Level III – Instruments that have little to no pricing observability as of the reported date. These financial instruments do not have two-way markets and are measured using management’s best estimate of fair value, where the inputs into the determination of fair value require significant management judgment or estimation. Instruments that are included in this category generally include municipal securities with no observable fair value with an average life of one year or less. The securities are carried at cost which approximates fair value. A periodic review of underlying financial statements and credit ratings is performed to assess the appropriateness of these valuations.

The results of the fair value hierarchy as of June 30, 2021, are as follows:

	Fair Value Measurements Using
	Carrying Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
	(in thousands)
Financial Instruments Measured at Fair Value on a Recurring Basis
Securities AFS
SBA Backed Securities	$	41,065	$	—	$	41,065	$	—
U.S. Government Agency and Sponsored Mortgage-Backed Securities		155,632		—		155,632		—
Privately Issued Residential Mortgage-Backed Securities		274		—		274		—
Obligations Issued by States and Political Subdivisions		26,747		—		—		26,747
Other Debt Securities		8,315		—		8,315		—
Total	$	232,033	$	—	$	205,286	$	26,747
Equity Securities	$	1,697	$	351	$	1,346	$	—
Financial Instruments Measured at Fair Value on a Non-recurring Basis Impaired Loans	$	251	$	—	$	—	$	251

The results of the fair value hierarchy as of December 31, 2020, are as follows:

	Fair Value Measurements Using
	Carrying Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
	(in thousands)
Financial Instruments Measured at Fair Value on a Recurring Basis
Securities AFS
SBA Backed Securities	$	44,039	$	—	$	44,039	$	—
U.S. Government Agency and Sponsored Mortgage-Backed Securities		177,741		—		177,741		—
Privately Issued Residential Mortgage- Backed Securities		328		—		328		—
Obligations Issued by States and Political Subdivisions		52,276		—		—		52,276
Other Debt Securities		8,064		—		8,064		—
Total	$	282,448	$	—	$	230,172	$	52,276
Equity Securities	$	1,668	$	303	$	1,365	$	—
Financial Instruments Measured at Fair Value on a Non-recurring Basis
Impaired Loans	$	3,178	$	—	$	—	$	3,178

Impaired loan balances represent those collateral dependent loans where management has estimated the credit loss by comparing the loan’s carrying value against the expected realizable fair value of the collateral. Fair value is generally determined through a review process that includes independent appraisals, discounted cash flows, or other external assessments of the underlying collateral, which generally include various Level 3 inputs which are not observable. The Company discounts the fair values, as appropriate, based on management’s observations of the local real estate market for loans in this category.

Appraisals, discounted cash flows and real estate tax assessments are reviewed quarterly. There is no specific policy regarding how frequently appraisals will be updated. Adjustments are made to appraisals and real estate tax assessments based on management’s estimate of changes in real estate values. All impaired loans have been reviewed during the past quarter using either a discounted cash flow analysis, appraisal of collateral or other type of real estate tax assessment. The types of adjustments that are made to specific provisions (credits) related to impaired loans recognized for the three and six-month period ended June 30, 2021 amounted to ($125,000) and ($500,000). The types of adjustments that are made to specific provisions related to impaired loans recognized for the year ended December 31, 2020 amounted to $501,000.

There were no transfers between level 1, 2 and 3 for the six months ended June 30, 2021 and the year ended December 31, 2020. There were no liabilities measured at fair value on a recurring or nonrecurring basis during the six months ended June 30, 2021 and the year ended December 31, 2021.

The following table presents additional information about assets measured at fair value on a recurring and nonrecurring basis for which the Company has utilized Level 3 inputs to determine fair value (dollars in thousands) at June 30, 2021. Management continues to monitor the assumptions used to value the assets listed below.

Asset	Fair Value		Valuation Technique	Unobservable Input	Unobservable Input Value or Range
Securities AFS (1)	$	26,747	Discounted cash flow	Discount rate	0% – 1.0% (2)
Impaired Loans	$	251	Appraisal of collateral (3)	Appraisal adjustments (4)	0% –22% discount

The following table presents additional information about assets measured at fair value on a recurring and nonrecurring basis for which the Company has utilized Level 3 inputs to determine fair value (dollars in thousands) at December 31, 2020. Management continues to monitor the assumptions used to value the assets listed below.

Asset	Fair Value		Valuation Technique	Unobservable Input	Unobservable Input Value or Range
Securities AFS (1)	$	52,276	Discounted cash flow	Discount rate	0% –1.0% (2)
Impaired Loans	$	3,178	Appraisal of collateral (3)	Appraisal adjustments (4)	0% –17% discount

(1)  Municipal securities generally have maturities of one year or less and, therefore, the amortized cost equates to the fair value.

(2)  Weighted averages.

(3)  Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various Level 3 inputs which are not identifiable.

(4)  Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated expenses.

The changes in Level 3 securities for the six-month period ended June 30, 2021 are shown in the table below: 

	Obligations Issued by States & Political Subdivisions
Balance at December 31, 2020	$	52,276
Purchases		14,855
Maturities and calls		(40,347	)
Amortization		(37	)
Balance at June 30, 2021	$	26,747

The amortized cost of Level 3 securities was $26,747,000 at June 30, 2021 with an unrealized loss of $0. The securities in this category are generally municipal securities with no readily determinable fair value. Management evaluated the fair value of these securities based on an evaluation of the underlying issuer, prevailing rates and market liquidity.

The changes in Level 3 securities for the six-month period ended June 30, 2020 are shown in the table below:

	Obligations Issued by States & Political Subdivisions
Balance at December 31, 2019	$	13,301
Purchases		44,324
Maturities and calls		(8,879	)
Amortization		(7	)
Balance at June 30, 2020	$	48,739

The amortized cost of Level 3 securities was $48,739,000 at June 30, 2020 with an unrealized loss of $0. The securities in this category are generally municipal securities with no readily determinable fair value. Management evaluated the fair value of these securities based on an evaluation of the underlying issuer, prevailing rates and market liquidity.

The fair value of impaired loans decreased by $2,927,000, for the first six months of 2021, mainly attributable to one loan that was paid down. There were no liabilities measured at fair value on a recurring or nonrecurring basis during the six-month period ended June 30, 2020.

XML

Fair Values of Financial Instruments

6 Months Ended

Jun. 30, 2021

Investments, All Other Investments [Abstract]

Fair Values of Financial Instruments

Note 9. Fair Values of Financial Instruments

The following methods and assumptions were used by the Company in estimating fair values of its financial instruments. Excluded from this disclosure are all non-financial instruments. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company.

The assumptions used below are expected to approximate those that market participants would use in valuing these financial instruments.

Fair value estimates are made at a specific point in time, based on available market information and judgments about the financial instrument, including estimates of timing, amount of expected future cash flows and the credit standing of the issuer. Such estimates do not consider the tax impact of the realization of unrealized gains or losses. In some cases, the fair value estimates cannot be substantiated by comparison to independent markets. In addition, the disclosed fair value may not be realized in the immediate settlement of the financial instrument. Care should be exercised in deriving conclusions about our business, its value or financial position based on the fair value information of financial instruments presented below.

Securities Held-to-Maturity

The fair values of these securities were based on quoted market prices, where available, as provided by third-party investment portfolio pricing vendors. If quoted market prices were not available, fair values provided by the vendors were based on quoted market prices of comparable instruments in active markets and/or based on a matrix pricing methodology which employs The Bond Market Association’s standard calculations for cash flow and price/yield analysis, live benchmark bond pricing and terms/condition data available from major pricing sources. Management regards the inputs and methods used by third party pricing vendors to be “Level 2 inputs and methods” as defined in the “fair value hierarchy” provided by FASB.

Loans

The fair value of loans is estimated using the exit price notion consistent with Topic 820, Fair Value Measurement. Fair value is determined based on a discounted cash flow analysis. The discounted cash flow analysis was based on the contractual maturity of the loan and market indications of rates, prepayment speeds, defaults and credit risk. For certain non-performing assets, fair value of the underlying collateral is determined based on the estimated values of individual receipts.

Time Deposits

The fair value of time deposits was estimated using a discounted cash flow approach that applies prevailing market interest rates for similar maturity instruments. The fair values of the Company’s time deposit liabilities do not take into consideration the value of the Company’s long-term relationships with depositors, which may have significant value.

Other Borrowed Funds

The fair value of other borrowed funds is based on the discounted value of contractual cash flows. The discount rate used is estimated based on the rates currently offered for other borrowed funds of similar remaining maturities.

Subordinated Debentures

The fair value of subordinated debentures is based on the discounted value of contractual cash flows. The discount rate used is estimated based on the rates currently offered for other subordinated debentures of similar remaining maturities.

The following presents (in thousands) the carrying amount, estimated fair value, and placement in the fair value hierarchy of the Company’s financial instruments as of June 30, 2021 and December 31, 2020. This table excludes financial instruments for which the carrying amount approximates fair value. Financial assets for which the fair value approximates carrying value include cash and cash equivalents, short-term investments, FHLBB stock and accrued interest receivable. Financial liabilities for which the fair value approximates carrying value include non-maturity deposits, short-term borrowings and accrued interest payable.

June 30, 2021	Carrying Amount		Estimated Fair Value		Fair Value Measurements Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
	(in thousands)
Financial assets:
Securities held-to-maturity	$	3,350,561	$	3,360,731	$	—	$	3,360,731	$	—
Loans (1)		2,964,184		2,867,548		—		—		2,867,548
Financial liabilities:
Time deposits		433,479		431,087		—		431,087		—
Other borrowed funds		119,029		122,560		—		122,560		—
Subordinated debentures		36,083		36,083		—		36,083		—
December 31, 2020
Financial assets:
Securities held-to-maturity	$	2,509,088	$	2,579,103	$	—	$	2,579,103	$	—
Loans (1)		2,960,343		2,902,390		—		—		2,902,390
Financial liabilities:
Time deposits		546,143		556,470		—		556,470		—
Other borrowed funds		177,009		183,000		—		183,000		—
Subordinated debentures		36,083		36,083		—		36,083		—

(1) Comprised of loans (including collateral dependent impaired loans), net of deferred loan costs and the allowance for loan losses.

Limitations

Fair value estimates are made at a specific point in time, based on relevant market information and information about the type of financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Bank’s entire holdings of a particular financial instrument. Because no active market exists for some of the Bank’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, cash flows, current economic conditions, risk characteristics and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions and changes in the loan, debt and interest rate markets could significantly affect the estimates. Further, the income tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on the fair value estimates and have not been considered.

XML

Revenue from Contracts with Customers

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Revenue from Contracts with Customers

Note 10. Revenue from Contracts with Customers

Revenue from contracts with customers in the scope of ASC Topic 606 is measured based on the consideration specified in the contract with a customer, and excludes amounts collected on behalf of third parties. The Company recognizes revenue from contracts with customers when it satisfies its performance obligations.

The Company’s performance obligations are typically satisfied as services are rendered, and our contracts do not include multiple performance obligations. Payment is generally collected at the time services are rendered, or monthly. Unsatisfied performance obligations at the report date are not material to our consolidated financial statements.

The Company pays sales commissions to its employees in accordance with certain incentive plans. The Company expenses sales commissions when incurred if we do not expect to recover these costs from the terms of the contract with the customer. Sales commissions are included in compensation expense.

In certain cases, other parties are involved with providing products and services to our customers. If the Company is a principal in the transaction (providing goods or services itself), revenues are reported based on the gross consideration received from the customer and any related expenses are reported gross in noninterest expense. If the Company is an agent in the transaction (arranging for another party to provide goods or services), the Company reports its net fee or commission retained as revenue.

Waivers and reversals are recorded as a reduction of revenue either when the revenue is recognized by the Company or at the time the waiver or reversal is earned by the customer.

A. Nature of goods and services

The vast majority of the Company’s revenue is specifically out-of-scope of Topic 606. For the revenue in-scope, the following is a description of principal activities, separated by the timing of revenue recognition, from which the Company generates its revenue from contracts with customers.

a. Revenue earned at a point in time – Examples of revenue earned at a point in time are ATM transaction fees, wire transfer fees, “non-sufficient funds” fees, credit and debit card interchange fees and foreign exchange transaction fees. Revenue is generally derived from transactional information accumulated by our systems and is recognized as revenue immediately as the transactions occur or upon providing the service to complete the customer’s transaction. The Company is the principal in each of these contracts, with the exception of credit and debit card interchange fees, in which case we are acting as the agent and record revenue net of expenses paid to the principal.

b. Revenue earned over time – The Company earns revenue from contracts with customers in a variety of ways in which the revenue is earned over a period of time – generally monthly or quarterly. Examples of this type of revenue are deposit account service fees, lockbox fees, investment management fees, merchant referral services, and safe deposit box fees. Account service charges, management fees and referral fees are recognized on a monthly basis while any transaction based income is recorded as the activity occurs. Revenue is primarily based on the number and type of transactions or assets managed and is generally derived from transactional information accumulated by our systems. Revenue is recorded in the same period as the related transactions occur or services are rendered to the customer.

B. Disaggregation of revenue

The following table presents total revenues as presented in the Consolidated Statements of Income and the related amounts which are from contracts with customers within the scope of Topic 606. As illustrated here, the vast majority of our revenues are specifically excluded from the scope of Topic 606.

	Six Months Ended 6/30/2021		Revenue from Contracts in Scope of Topic 606		Six Months Ended 6/30/2020		Revenue from Contracts in Scope of Topic 606
	(dollars in thousands)
Net interest income	$	58,558	$	—	$	51,019	$	—
Noninterest income:
Service charges on deposit accounts		4,389		4,389		4,319		4,319
Lockbox fees		1,962		1,962		1,854		1,854
Other income		1,958		1,366		2,178		1,158
Total noninterest income		8,309		7,717		8,351		7,331
Total revenues	$	66,867	$	7,717	$	59,370	$	7,331

	Three Months Ended 6/30/2021		Revenue from Contracts in Scope of Topic 606		Three Months Ended 6/30/2020		Revenue from Contracts in Scope of Topic 606
	(dollars in thousands)
Net interest income	$	29,991	$	—	$	25,818	$	—
Noninterest income:
Service charges on deposit accounts		2,171		2,171		2,023		2,023
Lockbox fees		966		966		924		924
Other income		969		671		1,094		559
Total noninterest income		4,106		3,808		4,041		3,506
Total revenues	$	34,097	$	3,808	$	29,859	$	3,506

The following table provides information about receivables with customers.

	June 30, 2021		December 31, 2020
(dollars in thousands)
Receivables, which are included in “Other assets”	$	1,486	$	1,397

XML

Leases

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Leases

Note 11. Leases

The Company has operating leases primarily for branch locations as well as data processing centers. The Company’s operating leases have remaining lease terms of 1 year to 31 years, some of which include options to extend the leases for up to 10 years, and some of which include options to terminate the leases within 1 year. The Company also has one sublease for part of a data processing center that the Company currently leases from a lessor. The sublease expires in 2024 which can be terminated early after each sublease year. Lease income, for the sublease, totaled approximately $20,000 for the six months ended June 30, 2021. Variable lease costs include costs that are not included in the lease liability.

The components of lease expense were as follows:

	Three Months Ended 6/30/2021		Six Months Ended 6/30/2021		Three Months Ended 6/30/2020		Six Months Ended 6/30/2020
(in thousands)
Operating lease cost	$	560	$	1,121	$	546	$	1,092
Variable lease cost		201		353		173		307
Total lease cost	$	761	$	1,474	$	719	$	1,399

Supplemental cash flow information related to leases was as follows:

	Three Months Ended 6/30/2021		Six Months Ended 6/30/2021		Three Months Ended 6/30/2020		Six Months Ended 6/30/2020
(in thousands)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	542	$	1,083	$	529	$	1,057
Right-of-use assets obtained in exchange for lease obligations: Operating leases	$	—	$	—	$	434	$	875

Supplemental balance sheet information related to leases was as follows:

	6/30/2021		12/31/2020
(in thousands, except lease term and discount rate)
Operating Leases:
Operating lease right-of-use assets	$	12,810	$	13,713
Operating lease liabilities	$	13,057	$	13,935
Weighted Average Remaining Lease Term:
Operating Leases		10 Years		10 Years
Weighted Average Discount Rate:
Operating Leases		3.1%		3.1%

The Company has payment obligations under a number of non-cancelable operating leases for premises and equipment expiring in various years through 2030. Total lease expense approximated $1,475,000 and $1,399,000 for the six months ended June 30, 2021 and 2020, respectively. Included in lease expense are amounts paid to a company affiliated with Barry R. Sloane, Chairman, President and CEO, and Linda Sloane Kay, Vice Chair, amounting to $275,000 and $219,000, for the six months ended June 30, 2021 and 2020, respectively. Rental income approximated $370,000 and $347,000, for the six months ended June 30, 2021 and 2020, respectively.

A summary of future minimum rental payments under such leases as the dates indicated follows:

	Minimum Rental Payments
	June 30, 2021			December 31, 2020
	(in thousands)
Year Ending December 31, 2021	$	1,088		$	2,156
2022		1,995			1,995
2023		1,962			1,962
2024		1,692			1,692
2025		1,471			1,471
Thereafter		7,394			7,394
Total lease payments	$	15,602		$	16,670
Less imputed interest		(2,545	)		(2,735	)
Present value of lease liability	$	13,057		$	13,935

June 30, 2021 minimum rental payments represent six months of rental payments remaining in calendar year 2021.

XML

Proposed Transaction with Eastern Bankshares, Inc

6 Months Ended

Jun. 30, 2021

Business Combinations [Abstract]

Proposed Transaction with Eastern Bankshares, Inc.

Note 12. Proposed Transaction with Eastern Bankshares, Inc.

On April 7, 2021, the Company and Eastern Bankshares, Inc. (“Eastern”) (NASDAQ: EBC) entered into an Agreement and Plan of Merger pursuant to which, through a series of transactions, Eastern will acquire the Company in a cash transaction for total consideration valued at approximately $642 million. Under the terms of the Agreement and Plan of Merger, (i) each holder of Class A common stock will receive a cash payment of $115.28 per share of Class A common stock and (ii) each holder of Class B common stock will receive a cash payment of $115.28 per share of Class B common stock. The transaction is expected to close in the fourth quarter of 2021 and is subject to customary closing conditions, including required regulatory approvals. The Company’s shareholders approved the Agreement and Plan of Merger at the Special Meeting of the Shareholders held on July 7, 2021.

The Company has recognized approximately $1.2 million in merger related costs, mainly consisting of legal and consulting expenses. The expenses have been recorded in other expenses on the income statement. The Company also has contingent merger related fees of approximately $7.9 million mainly consisting of underwriting and legal fees that have not been recognized. The contingent merger related fees will be recognized upon closing of the proposed transaction.

XML

Securities Available-for-Sale (Tables)

6 Months Ended

Jun. 30, 2021

Text Block [Abstract]

Summary of Securities Available-for-Sale

	June 30, 2021								December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(in thousands)
SBA Backed Securities	$	40,406	$	660	$	1	$	41,065	$	44,328	$	—	$	289	$	44,039
U.S. Government Agency and Sponsored   Enterprise Mortgage-Backed Securities		154,763		1,003		134		155,632		177,239		819		317		177,741
Privately Issued Residential Mortgage-Backed Securities		269		5		—		274		330		2		4		328
Obligations Issued by States and Political Subdivisions		26,747		—		—		26,747		52,276		—		—		52,276
Other Debt Securities		8,100		224		9		8,315		8,100		24		60		8,064
Total	$	230,285	$	1,892	$	144	$	232,033	$	282,273	$	845	$	670	$	282,448

Estimated Maturity Distribution of Securities Available-for-Sale

The following table shows the maturity distribution of the Company’s securities available-for-sale at June 30, 2021.

	Amortized Cost		Fair Value
	(in thousands)
Within one year	$	28,420	$	28,442
After one but within five years		96,690		97,477
After five but within ten years		91,931		92,687
More than 10 years		13,244		13,427
Total	$	230,285	$	232,033

Continuous Unrealized Loss Position for 12 Months or Less and 12 Months and Longer

The following table shows the temporarily impaired securities of the Company’s available-for-sale portfolio at June 30, 2021. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for less than 12 months and a continuous loss position for 12 months or longer. There are 1 and 9 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 140 holdings at June 30, 2021.

	June 30, 2021
	Less than 12 months				12 months or longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
SBA Backed Securities	$	—	$	—	$	98	$	1	$	98	$	1
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		—		—		15,742		134		15,742		134
Privately Issued Residential Mortgage-Backed Securities		—		—		—		—		—		—
Obligations Issued by States and Political Subdivisions		—		—		—		—		—		—
Other Debt Securities		1,491		8		100		1		1,591		9
Total temporarily impaired securities	$	1,491	$	8	$	15,940	$	136	$	17,431	$	144

The following table shows the temporarily impaired securities of the Company’s available-for-sale portfolio at December 31, 2020. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for less than 12 months and a continuous loss position for 12 months or longer. There are 13 and 21 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 153 holdings at December 31, 2020.

	December 31, 2020
	Less than 12 months				12 months or longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
SBA Backed Securities	$	13,839	$	42	$	30,200	$	247	$	44,039	$	289
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		18,188		50		33,617		267		51,805		317
Privately Issued Residential Mortgage-Backed Securities		—		—		210		4		210		4
Obligations Issued by States and Political Subdivisions		—		—		—		—		—		—
Other Debt Securities		3,942		58		1,298		2		5,240		60
Total temporarily impaired securities	$	35,969	$	150	$	65,325	$	520	$	101,294	$	670

XML

Investment Securities Held-to-Maturity (Tables)

6 Months Ended

Jun. 30, 2021

Text Block [Abstract]

Summary of Held-to-Maturity Securities

	June 30, 2021								December 31, 2020
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in thousands)
U.S. Government Sponsored Enterprises	$	356,080	$	131	$	5,119	$	351,092	$	244,220	$	389	$	866	$	243,743
SBA Backed Securities		34,626		1,713		—		36,339		37,783		2,002		—		39,785
U.S. Government Sponsored Enterprises Mortgage-Backed Securities		2,959,855		39,856		26,411		2,973,300		2,227,085		69,522		1,032		2,295,575
Total	$	3,350,561	$	41,700	$	31,530	$	3,360,731	$	2,509,088	$	71,913	$	1,898	$	2,579,103

Company's Securities Held-to-Maturity

The following table shows the maturity distribution of the Company’s securities held-to-maturity at June 30, 2021.

	Amortized Cost		Fair Value
	(in thousands)
Within one year	$	53,832	$	54,279
After one but within five years		1,889,085		1,914,143
After five but within ten years		1,407,644		1,392,309
More than ten years		—		—
Total	$	3,350,561	$	3,360,731

Unrealized Market Loss of Securities

The following table shows the temporarily impaired securities of the Company’s held-to-maturity portfolio June 30, 2021. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for 12 months or less and a continuous loss position for 12 months or longer. There are 168 and 1 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 659 holdings at June 30, 2021.

	June 30, 2021
	Less Than 12 Months				12 Months or Longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
US Government Sponsored Enterprises	$	140,480	$	5,119	$	—	$	—	$	140,480	$	5,119
SBA Backed Securities		—		—		—		—		—		—
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		375,533		26,384		2,491		27		378,024		26,411
Total temporarily impaired securities	$	516,013	$	31,503	$	2,491	$	27	$	518,504	$	31,530

The following table shows the temporarily impaired securities of the Company’s held-to-maturity portfolio at December 31, 2020. This table shows the unrealized market loss of securities that have been in a continuous unrealized loss position for less than 12 months and a continuous loss position for 12 months or longer. There are 53 and 0 securities that are temporarily impaired for less than 12 months and for 12 months or longer, respectively, out of a total of 600 holdings at December 31, 2020.

	December 31, 2020
	Less Than 12 Months				12 Months or Longer				Total
Temporarily Impaired Investments	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	(in thousands)
U.S. Government Sponsored Enterprises	$	162,870	$	866	$	—	$	—	$	162,870	$	866
SBA Backed Securities		—		—		—		—		—		—
U.S. Government Agency and Sponsored Enterprise Mortgage-Backed Securities		302,401		1,032		—		—		302,401		1,032
Total temporarily impaired securities	$	465,271	$	1,898	$	—	$	—	$	465,271	$	1,898

XML

Allowance for Loan Losses (Tables)

6 Months Ended

Jun. 30, 2021

Receivables [Abstract]

Analysis of the allowance for loan losses

The following table summarizes the changes in the Company’s allowance for loan losses for the periods indicated.

	Three months ended June 30,						Six months ended June 30,
	2021			2020			2021			2020
	(in thousands)						(in thousands)
Allowance for loan losses, beginning of period	$	34,952		$	30,804		$	35,486		$	29,585
Loans charged off		(29	)		(17	)		(96	)		(79	)
Recoveries on loans previously charged-off		26			29			109			235
Net recoveries (charge-offs)		(3	)		12			13			156
(Credit) provision charged to expense		—			1,700			(550	)		2,775
Allowance for loan losses, end of period	$	34,949		$	32,516		$	34,949		$	32,516

Summary of Allowance for Loan Losses

Further information pertaining to the allowance for loan losses for the three months ending June 30, 2021 is as follows:

	Construction and Land Development			Commercial and Industrial		Municipal			Commercial Real Estate		Residential Real Estate			Consumer			Home Equity			Unallocated		Total
Allowance for loan losses:	(in thousands)
Balance at March 31, 2021	$	293		$	16,470	$	2,837		$	11,655	$	2,067		$	194		$	1,049		$	387	$	34,952
Charge-offs		—			—		—			—		—			(29	)		—			—		(29	)
Recoveries		—			2		—			—		—			24			—			—		26
Provision (credit)		(73	)		30		(20	)		53		(38	)		15			(92	)		125		—
Ending balance at June 30, 2021	$	220		$	16,502	$	2,817		$	11,708	$	2,029		$	204		$	957		$	512	$	34,949
Amount of allowance for loan losses for loans deemed to be impaired	$	—		$	9	$	—		$	74	$	—		$	—		$	—		$	—	$	83
Amount of allowance for loan losses for loans not deemed to be impaired	$	220		$	16,493	$	2,817		$	11,634	$	2,029		$	204		$	957		$	512	$	34,866
Loans:
Ending balance	$	6,404		$	1,296,399	$	138,771		$	813,163	$	471,671		$	20,611		$	252,114		$	—	$	2,999,133
Loans deemed to be impaired	$	—		$	224	$	—		$	2,271	$	—		$	—		$	—		$	—	$	2,495
Loans not deemed to be impaired	$	6,404		$	1,296,175	$	138,771		$	810,892	$	471,671		$	20,611		$	252,114		$	—	$	2,996,638

Further information pertaining to the allowance for loan losses for the six months ending June 30, 2021 is as follows:

	Construction and Land Development			Commercial and Industrial			Municipal		Commercial Real Estate			Residential Real Estate			Consumer			Home Equity			Unallocated		Total
Allowance for loan losses:	(in thousands)
Balance at December 31, 2020	$	429		$	16,713		$	2,804	$	11,751		$	2,111		$	241		$	1,208		$	229	$	35,486
Charge-offs		—			—			—		—			—			(96	)		—			—		(96	)
Recoveries		—			5			—		—			—			104			—			—		109
Provision (credit)		(209	)		(216	)		13		(43	)		(82	)		(45	)		(251	)		283		(550	)
Ending balance at June 30, 2021	$	220		$	16,502		$	2,817	$	11,708		$	2,029		$	204		$	957		$	512	$	34,949
Amount of allowance for loan losses for loans deemed to be impaired	$	—		$	9		$	—	$	74		$	—		$	—		$	—		$	—	$	83
Amount of allowance for loan losses for loans not deemed to be impaired	$	220		$	16,493		$	2,817	$	11,634		$	2,029		$	204		$	957		$	512	$	34,866
Loans:
Ending balance	$	6,404		$	1,296,399		$	138,771	$	813,163		$	471,671		$	20,611		$	252,114		$	—	$	2,999,133
Loans deemed to be impaired	$	—		$	224		$	—	$	2,271		$	—		$	—		$	—		$	—	$	2,495
Loans not deemed to be impaired	$	6,404		$	1,296,175		$	138,771	$	810,892		$	471,671		$	20,611		$	252,114		$	—	$	2,996,638

Further information pertaining to the allowance for loan losses for the three months ending June 30, 2020 is as follows:

	Construction and Land Development		Commercial and Industrial			Municipal			Commercial Real Estate		Residential Real Estate		Consumer			Home Equity		Unallocated			Total
Allowance for loan losses:	(in thousands)
Balance at March 31, 2020	$	246	$	12,428		$	2,889		$	11,121	$	2,449	$	296		$	1,137	$	238		$	30,804
Charge-offs		—		(6	)		—			—		—		(11	)		—		—			(17	)
Recoveries		—		6			—			—		—		23			—		—			29
Provision		43		693			(21	)		182		645		(19	)		328		(151	)		1,700
Ending balance at June 30, 2020	$	289	$	13,121		$	2,868		$	11,303	$	3,094	$	289		$	1,465	$	87		$	32,516
Amount of allowance for loan losses for loans deemed to be impaired	$	—	$	15		$	—		$	80	$	—	$	—		$	—	$	—		$	95
Amount of allowance for loan losses for loans not deemed to be impaired	$	289	$	13,106		$	2,868		$	11,223	$	3,094	$	289		$	1,465	$	87		$	32,421
Loans:
Ending balance	$	6,513	$	1,155,592		$	153,017		$	764,886	$	400,867	$	19,857		$	297,355	$	—		$	2,798,087
Loans deemed to be impaired	$	—	$	180		$	—		$	2,716	$	235	$	—		$	—	$	—		$	3,131
Loans not deemed to be impaired	$	6,513	$	1,155,412		$	153,017		$	762,170	$	400,632	$	19,857		$	297,355	$	—		$	2,794,956

Further information pertaining to the allowance for loan losses for the six months ending June 30, 2020 is as follows:

	Construction and Land Development			Commercial and Industrial			Municipal		Commercial Real Estate			Residential Real Estate		Consumer			Home Equity		Unallocated		Total
Allowance for loan losses:	(in thousands)
Balance at December 31, 2019	$	331		$	11,596		$	2,566	$	11,464		$	2,194	$	312		$	1,065	$	57	$	29,585
Charge-offs		—			(11	)		—		—			—		(68	)		—		—		(79	)
Recoveries		—			170			—		—			—		60			5		—		235
Provision		(42	)		1,366			302		(161	)		900		(15	)		395		30		2,775
Ending balance at June 30, 2020	$	289		$	13,121		$	2,868	$	11,303		$	3,094	$	289		$	1,465	$	87	$	32,516
Amount of allowance for loan losses for loans deemed to be impaired	$	—		$	15		$	—	$	80		$	—	$	—		$	—	$	—	$	95
Amount of allowance for loan losses for loans not deemed to be impaired	$	289		$	13,106		$	2,868	$	11,223		$	3,094	$	289		$	1,465	$	87	$	32,421
Loans:
Ending balance	$	6,513		$	1,155,592		$	153,017	$	764,886		$	400,867	$	19,857		$	297,355	$	—	$	2,798,087
Loans deemed to be impaired	$	—		$	180		$	—	$	2,716		$	235	$	—		$	—	$	—	$	3,131
Loans not deemed to be impaired	$	6,513		$	1,155,412		$	153,017	$	762,170		$	400,632	$	19,857		$	297,355	$	—	$	2,794,956

Loans by Risk Rating

The following table presents the Company’s loans by risk rating at June 30, 2021.

	Construction and Land Development		Commercial and Industrial		Municipal		Commercial Real Estate
	(in thousands)
Grade:
1-3 (Pass)	$	6,404	$	1,292,230	$	138,771	$	787,676
4 (Monitor)		—		3,945		—		23,216
5 (Substandard)		—		—		—		—
6 (Doubtful)		—		—		—		—
Impaired		—		224		—		2,271
Total	$	6,404	$	1,296,399	$	138,771	$	813,163

The following table presents the Company’s loans by risk rating at December 31, 2020.

	Construction and Land Development		Commercial and Industrial		Municipal		Commercial Real Estate
	(in thousands)
Grade:
1-3 (Pass)	$	10,909	$	1,309,861	$	137,607	$	761,101
4 (Monitor)		—		3,945		—		23,795
5 (Substandard)		—		—		—		—
6 (Doubtful)		—		—		—		—
Impaired		—		439		—		4,940
Total	$	10,909	$	1,314,245	$	137,607	$	789,836

Loans by Credit Rating

Credit ratings issued by national organizations were utilized as credit quality indicators as presented in the following table at June 30, 2021 and are included within the total loan portfolio.

	Commercial and Industrial		Municipal		Commercial Real Estate		Total
	(in thousands)
Credit Rating:
Aaa – Aa3	$	761,705	$	75,825	$	36,184	$	873,714
A1 – A3		181,928		6,983		143,001		331,912
Baa1 – Baa3		50,000		51,133		145,513		246,646
Ba2		—		4,830		—		4,830
Total	$	993,633	$	138,771	$	324,698	$	1,457,102

Credit ratings issued by national organizations were utilized as credit quality indicators as presented in the following table at December 31, 2020.

	Commercial and Industrial		Municipal		Commercial Real Estate		Total
	(in thousands)
Credit Rating:
Aaa – Aa3	$	710,955	$	74,291	$	38,035	$	823,281
A1 – A3		183,123		7,103		145,583		335,809
Baa1 – Baa3		50,000		51,133		140,905		242,038
Ba2		—		5,080		—		5,080
Total	$	944,078	$	137,607	$	324,523	$	1,406,208

Aging of Past Due Loan Losses

Further information pertaining to the allowance for loan losses at June 30, 2021 follows:

	Accruing 30-89 Days Past Due		Non Accrual		Accruing Greater than 90 Days		Total Past Due		Current Loans		Total
	(in thousands)
Construction and land development	$	—	$	—	$	—	$	—	$	6,404	$	6,404
Commercial and industrial		11		164		—		175		1,296,224		1,296,399
Municipal		—		—		—		—		138,771		138,771
Commercial real estate		—		251		—		251		812,912		813,163
Residential real estate		715		633		—		1,348		470,323		471,671
Consumer and overdrafts		10		—		—		10		20,601		20,611
Home equity		685		222		—		907		251,207		252,114
Total	$	1,421	$	1,270	$	—	$	2,691	$	2,996,442	$	2,999,133

Further information pertaining to the allowance for loan losses at December 31, 2020 follows:

	Accruing 30-89 Days Past Due		Non Accrual		Accruing Greater than 90 Days		Total Past Due		Current Loans		Total
	(in thousands)
Construction and land development	$	—	$	—	$	—	$	—	$	10,909	$	10,909
Commercial and industrial		56		297		90		443		1,313,802		1,314,245
Municipal		—		—		—		—		137,607		137,607
Commercial real estate		—		2,881		—		2,881		786,955		789,836
Residential real estate		390		527		—		917		447,519		448,436
Consumer and overdrafts		21		1		—		22		20,417		20,439
Home equity		1,001		290		—		1,291		273,066		274,357
Total	$	1,468	$	3,996	$	90	$	5,554	$	2,990,275	$	2,995,829

Information Pertaining to Impaired Loans

The following is information pertaining to impaired loans for June 30, 2021:

	Carrying Value		Unpaid Principal Balance		Required Reserve		Average Carrying Value for 3 Months Ending 6/30/2021		Interest Income Recognized for 3 Months Ending 6/30/2021		Average Carrying Value for 6 Months Ending 6/30/2021		Interest Income Recognized for 6 Months Ending 6/30/2021
	(in thousands)
With no required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		—		—		—		1		—		4		—
Municipal		—		—		—		—		—		—		—
Commercial real estate		251		287		—		256		—		261		—
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	251	$	287	$	—	$	257	$	—	$	265	$	—
With required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		224		243		9		321		1		347		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,020		2,152		74		2,029		21		2,785		41
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	2,244	$	2,395	$	83	$	2,350	$	22	$	3,132	$	43
Total:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		224		243		9		322		1		351		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,271		2,439		74		2,285		21		3,046		41
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	2,495	$	2,682	$	83	$	2,607	$	22	$	3,397	$	43

The following is information pertaining to impaired loans for June 30, 2020:

	Carrying Value		Unpaid Principal Balance		Required Reserve		Average Carrying Value for 3 Months Ending 6/30/2020		Interest Income Recognized for 3 Months Ending 6/30/2020		Average Carrying Value for 6 Months Ending 6/30/2020		Interest Income Recognized for 6 Months Ending 6/30/2020
	(in thousands)
With no required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		77		97		—		213		1		380		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		612		645		—		346		—		266		—
Residential real estate		235		235		—		118		—		67		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	924	$	977	$	—	$	677	$	1	$	713	$	2
With required reserve recorded:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		103		103		15		78		1		94		2
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,104		2,227		80		2,147		22		2,161		44
Residential real estate		—		—		—		—		—		—		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	2,207	$	2,330	$	95	$	2,225	$	23	$	2,255	$	46
Total:
Construction and land development	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Commercial and industrial		180		200		15		291		2		474		4
Municipal		—		—		—		—		—		—		—
Commercial real estate		2,716		2,872		80		2,493		22		2,427		44
Residential real estate		235		235		—		118		—		67		—
Consumer		—		—		—		—		—		—		—
Home equity		—		—		—		—		—		—		—
Total	$	3,131	$	3,307	$	95	$	2,902	$	24	$	2,968	$	48

XML

Reclassifications Out of Accumulated Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2021

Text Block [Abstract]

Reclassifications Out of Accumulated Other Comprehensive Income

Details about Accumulated Other Comprehensive Income Components	Three Months Ended June 30, 2021				Three Months Ended June 30, 2020				Affected Line Item in the Statement where Net Income is Presented
	(in thousands)
Unrealized gains and losses on available-for-sale securities	$	—			$	—			Net gains on sales of investments
		—				—			Provision for income taxes
	$	—			$	—			Net income
Accretion of unrealized losses transferred	$	(214	)		$	(219	)		Interest on securities held-to- maturity
		65				57			Provision for income taxes
	$	(149	)		$	(162	)		Net income
Amortization of defined benefit pension items
Prior-service costs	$	(54	)	(b)	$	(29	)	(b)	Salaries and employee benefits
Actuarial gains (losses)		(510	)	(b)		(473	)	(b)	Salaries and employee benefits
Total before tax		(564	)			(502	)		Income before taxes
Tax (expense) or benefit		158				141			Provision for income taxes
Net of tax	$	(406	)		$	(361	)		Net income

Details about Accumulated Other Comprehensive Income Components	Six Months Ended June 30, 2021				Six Months Ended June 30, 2020				Affected Line Item in the Statement where Net Income is Presented
	(in thousands)
Unrealized gains and losses on available-for-sale securities	$	—			$	—			Net gains on sales of investments
		—				—			Provision for income taxes
	$	—			$	—			Net income
Accretion of unrealized losses transferred	$	(369	)		$	(441	)		Interest on securities held-to- maturity
		106				115			Provision for income taxes
	$	(263	)		$	(326	)		Net income
Amortization of defined benefit pension items
Prior-service costs	$	(108	)	(b)	$	(58	)	(b)	Salaries and employee benefits
Actuarial gains (losses)		(1,021	)	(b)		(944	)	(b)	Salaries and employee benefits
Total before tax		(1,129	)			(1,002	)		Income before taxes
Tax (expense) or benefit		317				281			Provision for income taxes
Net of tax	$	(812	)		$	(721	)		Net income

(a) Amount in parentheses indicates reductions to net income.

(b) These accumulated other comprehensive income components are included in the computation of net periodic pension cost (see Employee Benefits footnote (Note 7) for additional details).

XML

Earnings per share ("EPS") (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Reconciliation of Basic EPS and Diluted EPS

The following table is a reconciliation of basic EPS and diluted EPS.

	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands except share and per share data)	2021		2020		2021		2020
Basic EPS Computation:
Numerator:
Net income, Class A	$	8,588	$	7,967	$	17,126	$	15,618
Net income, Class B		2,235		2,089		4,467		4,104
Denominator:
Weighted average shares outstanding, Class A		3,661,569		3,652,469		3,659,019		3,652,409
Weighted average shares outstanding, Class B		1,906,340		1,915,440		1,908,890		1,915,500
Basic EPS, Class A	$	2.35	$	2.18	$	4.68	$	4.28
Basic EPS, Class B		1.17		1.09		2.34		2.14
Diluted EPS Computation:
Numerator:
Net income, Class A	$	8,588	$	7,967	$	17,126	$	15,618
Net income, Class B		2,235		2,089		4,467		4,104
Total net income, for diluted EPS, Class A computation		10,823		10,056		21,593		19,722
Denominator:
Weighted average shares outstanding, basic, Class A		3,661,569		3,652,469		3,659,019		3,652,409
Weighted average shares outstanding, Class B		1,906,340		1,915,440		1,908,890		1,915,500
Weighted average shares outstanding diluted, Class A		5,567,909		5,567,909		5,567,909		5,567,909
Weighted average shares outstanding, Class B		1,906,340		1,915,440		1,908,890		1,915,500
Diluted EPS, Class A	$	1.94	$	1.81	$	3.88	$	3.54
Diluted EPS, Class B		1.17		1.09		2.34		2.14

XML

Employee Benefits (Tables)

6 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

Components of Net Periodic Benefit Cost for the Three Months Ended June 30,

	Pension Benefits						Supplemental Insurance/ Retirement Plan
	2021			2020			2021		2020
	(in thousands)
Service cost	$	379		$	344		$	363	$	353
Interest		434			450			434		466
Expected return on plan assets		(1,062	)		(952	)		—		—
Recognized prior service cost (benefit)		—			—			54		29
Recognized net actuarial losses		241			261			269		212
Net periodic benefit (credit) cost	$	(8	)	$	103		$	1,120	$	1,060

Components of Net Periodic Benefit Cost for the Six Months Ended June 30,

	Pension Benefits						Supplemental Insurance/ Retirement Plan
	2021			2020			2021		2020
	(in thousands)
Service cost	$	758		$	688		$	725	$	706
Interest		868			900			869		932
Expected return on plan assets		(2,123	)		(1,904	)		—		—
Recognized prior service cost (benefit)		—			—			108		58
Recognized net actuarial losses		482			522			539		422
Net periodic benefit (credit) cost	$	(15	)	$	206		$	2,241	$	2,118

XML

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Financial Instruments Measured at Fair Value on a Recurring and Non-recurring Basis

The results of the fair value hierarchy as of June 30, 2021, are as follows:

	Fair Value Measurements Using
	Carrying Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
	(in thousands)
Financial Instruments Measured at Fair Value on a Recurring Basis
Securities AFS
SBA Backed Securities	$	41,065	$	—	$	41,065	$	—
U.S. Government Agency and Sponsored Mortgage-Backed Securities		155,632		—		155,632		—
Privately Issued Residential Mortgage-Backed Securities		274		—		274		—
Obligations Issued by States and Political Subdivisions		26,747		—		—		26,747
Other Debt Securities		8,315		—		8,315		—
Total	$	232,033	$	—	$	205,286	$	26,747
Equity Securities	$	1,697	$	351	$	1,346	$	—
Financial Instruments Measured at Fair Value on a Non-recurring Basis Impaired Loans	$	251	$	—	$	—	$	251

The results of the fair value hierarchy as of December 31, 2020, are as follows:

	Fair Value Measurements Using
	Carrying Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
	(in thousands)
Financial Instruments Measured at Fair Value on a Recurring Basis
Securities AFS
SBA Backed Securities	$	44,039	$	—	$	44,039	$	—
U.S. Government Agency and Sponsored Mortgage-Backed Securities		177,741		—		177,741		—
Privately Issued Residential Mortgage- Backed Securities		328		—		328		—
Obligations Issued by States and Political Subdivisions		52,276		—		—		52,276
Other Debt Securities		8,064		—		8,064		—
Total	$	282,448	$	—	$	230,172	$	52,276
Equity Securities	$	1,668	$	303	$	1,365	$	—
Financial Instruments Measured at Fair Value on a Non-recurring Basis
Impaired Loans	$	3,178	$	—	$	—	$	3,178

Assets Measured at Fair Value

The following table presents additional information about assets measured at fair value on a recurring and nonrecurring basis for which the Company has utilized Level 3 inputs to determine fair value (dollars in thousands) at June 30, 2021. Management continues to monitor the assumptions used to value the assets listed below.

Asset	Fair Value		Valuation Technique	Unobservable Input	Unobservable Input Value or Range
Securities AFS (1)	$	26,747	Discounted cash flow	Discount rate	0% – 1.0% (2)
Impaired Loans	$	251	Appraisal of collateral (3)	Appraisal adjustments (4)	0% –22% discount

The following table presents additional information about assets measured at fair value on a recurring and nonrecurring basis for which the Company has utilized Level 3 inputs to determine fair value (dollars in thousands) at December 31, 2020. Management continues to monitor the assumptions used to value the assets listed below.

Asset	Fair Value		Valuation Technique	Unobservable Input	Unobservable Input Value or Range
Securities AFS (1)	$	52,276	Discounted cash flow	Discount rate	0% –1.0% (2)
Impaired Loans	$	3,178	Appraisal of collateral (3)	Appraisal adjustments (4)	0% –17% discount

(1)  Municipal securities generally have maturities of one year or less and, therefore, the amortized cost equates to the fair value.

(2)  Weighted averages.

(3)  Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various Level 3 inputs which are not identifiable.

(4)  Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated expenses.

Changes in Level 3 Securities

The changes in Level 3 securities for the six-month period ended June 30, 2021 are shown in the table below: 

	Obligations Issued by States & Political Subdivisions
Balance at December 31, 2020	$	52,276
Purchases		14,855
Maturities and calls		(40,347	)
Amortization		(37	)
Balance at June 30, 2021	$	26,747

The changes in Level 3 securities for the six-month period ended June 30, 2020 are shown in the table below:

	Obligations Issued by States & Political Subdivisions
Balance at December 31, 2019	$	13,301
Purchases		44,324
Maturities and calls		(8,879	)
Amortization		(7	)
Balance at June 30, 2020	$	48,739

XML

Fair Values of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2021

Investments, All Other Investments [Abstract]

Carrying Amounts and Fair Values of Company's Financial Instruments

June 30, 2021	Carrying Amount		Estimated Fair Value		Fair Value Measurements Level 1 Inputs		Level 2 Inputs		Level 3 Inputs
	(in thousands)
Financial assets:
Securities held-to-maturity	$	3,350,561	$	3,360,731	$	—	$	3,360,731	$	—
Loans (1)		2,964,184		2,867,548		—		—		2,867,548
Financial liabilities:
Time deposits		433,479		431,087		—		431,087		—
Other borrowed funds		119,029		122,560		—		122,560		—
Subordinated debentures		36,083		36,083		—		36,083		—
December 31, 2020
Financial assets:
Securities held-to-maturity	$	2,509,088	$	2,579,103	$	—	$	2,579,103	$	—
Loans (1)		2,960,343		2,902,390		—		—		2,902,390
Financial liabilities:
Time deposits		546,143		556,470		—		556,470		—
Other borrowed funds		177,009		183,000		—		183,000		—
Subordinated debentures		36,083		36,083		—		36,083		—

(1) Comprised of loans (including collateral dependent impaired loans), net of deferred loan costs and the allowance for loan losses.

XML

Revenue from Contracts with Customers (Tables)

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Revenue From Contracts

The following table presents total revenues as presented in the Consolidated Statements of Income and the related amounts which are from contracts with customers within the scope of Topic 606. As illustrated here, the vast majority of our revenues are specifically excluded from the scope of Topic 606.

	Six Months Ended 6/30/2021		Revenue from Contracts in Scope of Topic 606		Six Months Ended 6/30/2020		Revenue from Contracts in Scope of Topic 606
	(dollars in thousands)
Net interest income	$	58,558	$	—	$	51,019	$	—
Noninterest income:
Service charges on deposit accounts		4,389		4,389		4,319		4,319
Lockbox fees		1,962		1,962		1,854		1,854
Other income		1,958		1,366		2,178		1,158
Total noninterest income		8,309		7,717		8,351		7,331
Total revenues	$	66,867	$	7,717	$	59,370	$	7,331

	Three Months Ended 6/30/2021		Revenue from Contracts in Scope of Topic 606		Three Months Ended 6/30/2020		Revenue from Contracts in Scope of Topic 606
	(dollars in thousands)
Net interest income	$	29,991	$	—	$	25,818	$	—
Noninterest income:
Service charges on deposit accounts		2,171		2,171		2,023		2,023
Lockbox fees		966		966		924		924
Other income		969		671		1,094		559
Total noninterest income		4,106		3,808		4,041		3,506
Total revenues	$	34,097	$	3,808	$	29,859	$	3,506

Information about Receivables with Customers

The following table provides information about receivables with customers.

	June 30, 2021		December 31, 2020
(dollars in thousands)
Receivables, which are included in “Other assets”	$	1,486	$	1,397

XML

Leases (Tables)

6 Months Ended

Jun. 30, 2021

Leases [Abstract]

Components of lease expense

The components of lease expense were as follows:

	Three Months Ended 6/30/2021		Six Months Ended 6/30/2021		Three Months Ended 6/30/2020		Six Months Ended 6/30/2020
(in thousands)
Operating lease cost	$	560	$	1,121	$	546	$	1,092
Variable lease cost		201		353		173		307
Total lease cost	$	761	$	1,474	$	719	$	1,399

Supplemental cash flow information related to leases

Supplemental cash flow information related to leases was as follows:

	Three Months Ended 6/30/2021		Six Months Ended 6/30/2021		Three Months Ended 6/30/2020		Six Months Ended 6/30/2020
(in thousands)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	542	$	1,083	$	529	$	1,057
Right-of-use assets obtained in exchange for lease obligations: Operating leases	$	—	$	—	$	434	$	875

Supplemental balance sheet information related to leases

Supplemental balance sheet information related to leases was as follows:

	6/30/2021		12/31/2020
(in thousands, except lease term and discount rate)
Operating Leases:
Operating lease right-of-use assets	$	12,810	$	13,713
Operating lease liabilities	$	13,057	$	13,935
Weighted Average Remaining Lease Term:
Operating Leases		10 Years		10 Years
Weighted Average Discount Rate:
Operating Leases		3.1%		3.1%

Summary of Future Payments of Lease Liabilities

A summary of future minimum rental payments under such leases as the dates indicated follows:

	Minimum Rental Payments
	June 30, 2021			December 31, 2020
	(in thousands)
Year Ending December 31, 2021	$	1,088		$	2,156
2022		1,995			1,995
2023		1,962			1,962
2024		1,692			1,692
2025		1,471			1,471
Thereafter		7,394			7,394
Total lease payments	$	15,602		$	16,670
Less imputed interest		(2,545	)		(2,735	)
Present value of lease liability	$	13,057		$	13,935

XML

Basis of Financial Statement Presentation - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2021 Segment
Number of Reportable Segments	1
Century Bancorp Capital Trust II [Member]
Equity ownership interest	100.00%

XML

Securities Available-for-Sale - Summary of Securities Available-for-Sale (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 230,285	$ 282,273
Gross Unrealized Gains	1,892	845
Gross Unrealized Losses	144	670
Total, Fair Value	232,033	282,448
SBA Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	40,406	44,328
Gross Unrealized Gains	660	0
Gross Unrealized Losses	1	289
Total, Fair Value	41,065	44,039
U.S. Government Agency and Sponsored Enterprises Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	154,763	177,239
Gross Unrealized Gains	1,003	819
Gross Unrealized Losses	134	317
Total, Fair Value	155,632	177,741
Privately Issued Residential Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	269	330
Gross Unrealized Gains	5	2
Gross Unrealized Losses	0	4
Total, Fair Value	274	328
Obligations Issued by States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	26,747	52,276
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Total, Fair Value	26,747	52,276
Other Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	8,100	8,100
Gross Unrealized Gains	224	24
Gross Unrealized Losses	9	60
Total, Fair Value	$ 8,315	$ 8,064

XML

Securities Available-for-Sale - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2021 USD ($) Security	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) Security
Schedule of Available-for-sale Securities [Line Items]
Securities at fair value pledged to secure public deposits and repurchase agreements	$ 2,315,698,000		$ 1,866,989,000
Securities available-for-sale are securities at fair value pledged for borrowing	28,070,000		$ 29,885,000
Securities at floating rate or adjustable rate	195,045,000
Sales of securities available for sale	$ 0	$ 0
Securities AFS [Member]
Schedule of Available-for-sale Securities [Line Items]
Weighted average remaining life of investment securities available-for-sale	5 years 3 months 18 days
Number of securities, temporarily impaired for less than 12 months | Security	1		13
Number of securities, temporarily impaired for 12 months or longer | Security	9		21
Number of securities, temporarily impaired, total | Security	140		153
U.S. Government Agency and Sponsored Enterprises Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities at fair value pledged to secure public deposits and repurchase agreements	$ 160,723,000		$ 183,269,000

XML

Securities Available-for-Sale - Estimated Maturity Distribution of Securities Available-for-Sale (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Within one year, Amortized Cost	$ 28,420
After one but within five years, Amortized Cost	96,690
After five but within ten years, Amortized Cost	91,931
More than 10 years, Amortized Cost	13,244
Amortized Cost	230,285	$ 282,273
Within one year, Fair Value	28,442
After one but within five years, Fair Value	97,477
After five but within ten years, Fair Value	92,687
More than 10 years, Fair Value	13,427
Total, Fair Value	$ 232,033	$ 282,448

XML

Securities Available-for-Sale - Continuous Unrealized Loss Position for 12 Months or Less and 12 Months and Longer (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	$ 1,491	$ 35,969
Less Than 12 Months, Unrealized Losses	8	150
12 Months or Longer, Fair Value	15,940	65,325
12 Months or Longer, Unrealized Losses	136	520
Total, Fair Value	17,431	101,294
Total, Unrealized Losses	144	670
SBA Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	0	13,839
Less Than 12 Months, Unrealized Losses	0	42
12 Months or Longer, Fair Value	98	30,200
12 Months or Longer, Unrealized Losses	1	247
Total, Fair Value	98	44,039
Total, Unrealized Losses	1	289
U.S. Government Agency and Sponsored Enterprises Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	0	18,188
Less Than 12 Months, Unrealized Losses	0	50
12 Months or Longer, Fair Value	15,742	33,617
12 Months or Longer, Unrealized Losses	134	267
Total, Fair Value	15,742	51,805
Total, Unrealized Losses	134	317
Privately Issued Residential Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
12 Months or Longer, Fair Value	0	210
12 Months or Longer, Unrealized Losses	0	4
Total, Fair Value	0	210
Total, Unrealized Losses	0	4
Other Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Fair Value	1,491	3,942
Less Than 12 Months, Unrealized Losses	8	58
12 Months or Longer, Fair Value	100	1,298
12 Months or Longer, Unrealized Losses	1	2
Total, Fair Value	1,591	5,240
Total, Unrealized Losses	$ 9	$ 60

XML

Investment Securities Held-to-Maturity - Summary of Held-to-Maturity Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 3,350,561	$ 2,509,088
Gross Unrealized Gains	41,700	71,913
Gross Unrealized Losses	31,530	1,898
Estimated Fair Value	3,360,731	2,579,103
U.S. Government Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	356,080	244,220
Gross Unrealized Gains	131	389
Gross Unrealized Losses	5,119	866
Estimated Fair Value	351,092	243,743
SBA Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	34,626	37,783
Gross Unrealized Gains	1,713	2,002
Gross Unrealized Losses	0	0
Estimated Fair Value	36,339	39,785
U.S. Government Sponsored Enterprises Mortgage-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	2,959,855	2,227,085
Gross Unrealized Gains	39,856	69,522
Gross Unrealized Losses	26,411	1,032
Estimated Fair Value	$ 2,973,300	$ 2,295,575

XML

Investment Securities Held-to-Maturity - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2021 USD ($) Security	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) Security
Schedule of Held-to-maturity Securities [Line Items]
Securities at fair value pledged to secure public deposits and repurchase agreements	$ 2,315,698,000		$ 1,866,989,000
Securities held to maturity at floating rate or adjustable rate	72,000
Commercial Mortgage Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Sales of held-to-maturity securities	$ 0	$ 0
Held-to-Maturity Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Weighted average remaining life of investment securities held-to-maturity	4 years 8 months 12 days
Number of securities, temporarily impaired for less than 12 months | Security	168		53
Number of securities, temporarily impaired for 12 months or longer | Security	1		0
Number of securities, temporarily impaired, total | Security	659		600
Held-to-Maturity Securities [Member] | U.S. Government Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Weighted average remaining life	$ 265,612,000
Federal Home Loan Bank [Member]
Schedule of Held-to-maturity Securities [Line Items]
Securities pledged for borrowing at the Federal Home Loan Bank	$ 729,455,000		$ 537,367,000

XML

Investment Securities Held-to-Maturity - Company's Securities Held-to-Maturity (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Within one year, Amortized Cost	$ 53,832
After one but within five years, Amortized Cost	1,889,085
After five but within ten years, Amortized Cost	1,407,644
More than ten years, Amortized Cost	0
Amortized Cost	3,350,561	$ 2,509,088
Within one year, Fair Value	54,279
After one but within five years, Fair Value	1,914,143
After five but within ten years, Fair Value	1,392,309
More than ten years, Fair Value	0
Estimated Fair Value	$ 3,360,731	$ 2,579,103

XML

Investment Securities Held-to-Maturity - Unrealized Market Loss of Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Schedule of Held-to-maturity Securities [Line Items]
Less Than 12 Months, Fair Value	$ 516,013	$ 465,271
Less Than 12 Months, Unrealized Losses	31,503	1,898
12 Months or Longer, Fair Value	2,491	0
12 Months or Longer, Unrealized Losses	27	0
Total, Fair Value	518,504	465,271
Total, Unrealized Losses	31,530	1,898
US Government Sponsored Enterprises Mortgage-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Less Than 12 Months, Fair Value	140,480	162,870
Less Than 12 Months, Unrealized Losses	5,119	866
12 Months or Longer, Fair Value	0	0
12 Months or Longer, Unrealized Losses	0	0
Total, Fair Value	140,480	162,870
Total, Unrealized Losses	5,119	866
SBA Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Less Than 12 Months, Fair Value	0	0
Less Than 12 Months, Unrealized Losses	0	0
12 Months or Longer, Fair Value	0	0
12 Months or Longer, Unrealized Losses	0	0
Total, Fair Value	0	0
Total, Unrealized Losses	0	0
U.S. Government Agency and Sponsored Enterprises Mortgage-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Less Than 12 Months, Fair Value	375,533	302,401
Less Than 12 Months, Unrealized Losses	26,384	1,032
12 Months or Longer, Fair Value	2,491	0
12 Months or Longer, Unrealized Losses	27	0
Total, Fair Value	378,024	302,401
Total, Unrealized Losses	$ 26,411	$ 1,032

XML

Allowance for Loan Losses - Analysis of Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Receivables [Abstract]
Allowance for loan losses, beginning of period	$ 34,952	$ 30,804	$ 35,486	$ 29,585
Loans charged off	(29)	(17)	(96)	(79)
Recoveries on loans previously charged-off	26	29	109	235
Net recoveries (charge-offs)	(3)	12	13	156
(Credit) provision charged to expense		1,700	(550)	2,775
Allowance for loan losses, end of period	$ 34,949	$ 32,516	$ 34,949	$ 32,516

XML

Allowance for Loan Losses - Summary of Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Allowance for Loan Losses:
Allowance for loan losses, beginning of period	$ 34,952	$ 30,804	$ 35,486	$ 29,585
Charge-offs	(29)	(17)	(96)	(79)
Recoveries	26	29	109	235
Provision (credit)		1,700	(550)	2,775
Allowance for loan losses, end of period	34,949	32,516	34,949	32,516
Amount of allowance for loan losses for loans deemed to be impaired	83	95	83	95
Amount of allowance for loan losses for loans not deemed to be impaired	34,866	32,421	34,866	32,421
Loans:
Total loans, net	2,999,133	2,798,087	2,999,133	2,798,087	$ 2,995,829
Loans deemed to be impaired	2,495	3,131	2,495	3,131
Loans not deemed to be impaired	2,996,638	2,794,956	2,996,638	2,794,956
Construction and Land Development [Member]
Allowance for Loan Losses:
Allowance for loan losses, beginning of period	293	246	429	331
Provision (credit)	(73)	43	(209)	(42)
Allowance for loan losses, end of period	220	289	220	289
Amount of allowance for loan losses for loans not deemed to be impaired	220	289	220	289
Loans:
Total loans, net	6,404	6,513	6,404	6,513	10,909
Loans not deemed to be impaired	6,404	6,513	6,404	6,513
Commercial and Industrial [Member]
Allowance for Loan Losses:
Allowance for loan losses, beginning of period	16,470	12,428	16,713	11,596
Charge-offs		(6)		(11)
Recoveries	2	6	5	170
Provision (credit)	30	693	(216)	1,366
Allowance for loan losses, end of period	16,502	13,121	16,502	13,121
Amount of allowance for loan losses for loans deemed to be impaired	9	15	9	15
Amount of allowance for loan losses for loans not deemed to be impaired	16,493	13,106	16,493	13,106
Loans:
Total loans, net	1,296,399	1,155,592	1,296,399	1,155,592	1,314,245
Loans deemed to be impaired	224	180	224	180
Loans not deemed to be impaired	1,296,175	1,155,412	1,296,175	1,155,412
Municipal [Member]
Allowance for Loan Losses:
Allowance for loan losses, beginning of period	2,837	2,889	2,804	2,566
Provision (credit)	(20)	(21)	13	302
Allowance for loan losses, end of period	2,817	2,868	2,817	2,868
Amount of allowance for loan losses for loans not deemed to be impaired	2,817	2,868	2,817	2,868
Loans:
Total loans, net	138,771	153,017	138,771	153,017	137,607
Loans not deemed to be impaired	138,771	153,017	138,771	153,017
Commercial Real Estate [Member]
Allowance for Loan Losses:
Allowance for loan losses, beginning of period	11,655	11,121	11,751	11,464
Provision (credit)	53	182	(43)	(161)
Allowance for loan losses, end of period	11,708	11,303	11,708	11,303
Amount of allowance for loan losses for loans deemed to be impaired	74	80	74	80
Amount of allowance for loan losses for loans not deemed to be impaired	11,634	11,223	11,634	11,223
Loans:
Total loans, net	813,163	764,886	813,163	764,886	789,836
Loans deemed to be impaired	2,271	2,716	2,271	2,716
Loans not deemed to be impaired	810,892	762,170	810,892	762,170
Residential Real Estate [Member]
Allowance for Loan Losses:
Allowance for loan losses, beginning of period	2,067	2,449	2,111	2,194
Provision (credit)	(38)	645	(82)	900
Allowance for loan losses, end of period	2,029	3,094	2,029	3,094
Amount of allowance for loan losses for loans not deemed to be impaired	2,029	3,094	2,029	3,094
Loans:
Total loans, net	471,671	400,867	471,671	400,867	448,436
Loans deemed to be impaired		235		235
Loans not deemed to be impaired	471,671	400,632	471,671	400,632
Consumer [Member]
Allowance for Loan Losses:
Allowance for loan losses, beginning of period	194	296	241	312
Charge-offs	(29)	(11)	(96)	(68)
Recoveries	24	23	104	60
Provision (credit)	15	(19)	(45)	(15)
Allowance for loan losses, end of period	204	289	204	289
Amount of allowance for loan losses for loans not deemed to be impaired	204	289	204	289
Loans:
Total loans, net	20,611	19,857	20,611	19,857	20,439
Loans not deemed to be impaired	20,611	19,857	20,611	19,857
Home Equity [Member]
Allowance for Loan Losses:
Allowance for loan losses, beginning of period	1,049	1,137	1,208	1,065
Recoveries				5
Provision (credit)	(92)	328	(251)	395
Allowance for loan losses, end of period	957	1,465	957	1,465
Amount of allowance for loan losses for loans not deemed to be impaired	957	1,465	957	1,465
Loans:
Total loans, net	252,114	297,355	252,114	297,355	$ 274,357
Loans not deemed to be impaired	252,114	297,355	252,114	297,355
Unallocated [Member]
Allowance for Loan Losses:
Allowance for loan losses, beginning of period	387	238	229	57
Provision (credit)	125	(151)	283	30
Allowance for loan losses, end of period	512	87	512	87
Amount of allowance for loan losses for loans not deemed to be impaired	$ 512	$ 87	$ 512	$ 87

XML

Allowance for Loan Losses - Loans by Risk Rating (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Loans by risk rating
Financing Receivable, Net	$ 2,999,133	$ 2,995,829	$ 2,798,087
Construction and Land Development [Member]
Loans by risk rating
Financing Receivable, Net	6,404	10,909	6,513
Commercial and Industrial [Member]
Loans by risk rating
Financing Receivable, Net	1,296,399	1,314,245	1,155,592
Municipal [Member]
Loans by risk rating
Financing Receivable, Net	138,771	137,607	153,017
Commercial Real Estate [Member]
Loans by risk rating
Financing Receivable, Net	813,163	789,836	$ 764,886
1-3 (Pass) [Member] | Construction and Land Development [Member]
Loans by risk rating
Financing Receivable, Net	6,404	10,909
1-3 (Pass) [Member] | Commercial and Industrial [Member]
Loans by risk rating
Financing Receivable, Net	1,292,230	1,309,861
1-3 (Pass) [Member] | Municipal [Member]
Loans by risk rating
Financing Receivable, Net	138,771	137,607
1-3 (Pass) [Member] | Commercial Real Estate [Member]
Loans by risk rating
Financing Receivable, Net	787,676	761,101
4 (Monitor) [Member] | Commercial and Industrial [Member]
Loans by risk rating
Financing Receivable, Net	3,945	3,945
4 (Monitor) [Member] | Commercial Real Estate [Member]
Loans by risk rating
Financing Receivable, Net	23,216	23,795
Impaired [Member] | Commercial and Industrial [Member]
Loans by risk rating
Financing Receivable, Net	224	439
Impaired [Member] | Commercial Real Estate [Member]
Loans by risk rating
Financing Receivable, Net	$ 2,271	$ 4,940

XML

Allowance for Loan Losses - Loans by Credit Rating (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	$ 1,457,102	$ 1,406,208
Aaa - Aa3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	873,714	823,281
A1 - A3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	331,912	335,809
Baa1 - Baa3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	246,646	242,038
Ba2 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	4,830	5,080
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	993,633	944,078
Commercial and Industrial [Member] | Aaa - Aa3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	761,705	710,955
Commercial and Industrial [Member] | A1 - A3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	181,928	183,123
Commercial and Industrial [Member] | Baa1 - Baa3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	50,000	50,000
Municipal [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	138,771	137,607
Municipal [Member] | Aaa - Aa3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	75,825	74,291
Municipal [Member] | A1 - A3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	6,983	7,103
Municipal [Member] | Baa1 - Baa3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	51,133	51,133
Municipal [Member] | Ba2 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	4,830	5,080
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	324,698	324,523
Commercial Real Estate [Member] | Aaa - Aa3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	36,184	38,035
Commercial Real Estate [Member] | A1 - A3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	143,001	145,583
Commercial Real Estate [Member] | Baa1 - Baa3 [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and leases receivable net of deferred income credit quality	$ 145,513	$ 140,905

XML

Allowance for Loan Losses - Aging of Past Due Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Financing Receivable, Allowance for Credit Losses [Line Items]
Accruing 30-89 Days Past Due	$ 1,421	$ 1,468
Non Accrual	1,270	3,996
Accruing Greater Than 90 Days	0	90
Total Past Due	2,691	5,554
Current Loans	2,996,442	2,990,275
Total loans, net	2,999,133	2,995,829	$ 2,798,087
Construction and Land Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Current Loans	6,404	10,909
Total loans, net	6,404	10,909	6,513
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Accruing 30-89 Days Past Due	11	56
Non Accrual	164	297
Accruing Greater Than 90 Days	0	90
Total Past Due	175	443
Current Loans	1,296,224	1,313,802
Total loans, net	1,296,399	1,314,245	1,155,592
Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Current Loans	138,771	137,607
Total loans, net	138,771	137,607	153,017
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Non Accrual	251	2,881
Total Past Due	251	2,881
Current Loans	812,912	786,955
Total loans, net	813,163	789,836	764,886
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Accruing 30-89 Days Past Due	715	390
Non Accrual	633	527
Total Past Due	1,348	917
Current Loans	470,323	447,519
Total loans, net	471,671	448,436	400,867
Consumer and overdrafts [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Accruing 30-89 Days Past Due	10	21
Non Accrual		1
Total Past Due	10	22
Current Loans	20,601	20,417
Total loans, net	20,611	20,439	19,857
Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Accruing 30-89 Days Past Due	685	1,001
Non Accrual	222	290
Total Past Due	907	1,291
Current Loans	251,207	273,066
Total loans, net	$ 252,114	$ 274,357	$ 297,355

XML

Allowance for Loan Losses - Information Pertaining to Impaired Loans (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Financing Receivable, Allowance for Credit Losses [Line Items]
With no required reserve recorded, Carrying Value	$ 251	$ 924	$ 251	$ 924
With no required reserve recorded, Unpaid Balance Principal	287	977	287	977
With no required reserve recorded, Required Reserve	0	0	0	0
With no required reserve recorded, Average Carrying Value Recognized	257	677	265	713
With no required reserve recorded, Interest Income		1		2
With required reserve recorded, Carrying Value	2,244	2,207	2,244	2,207
With required reserve recorded, Unpaid Balance Principal	2,395	2,330	2,395	2,330
With required reserve recorded, Required Reserve	83	95	83	95
With required reserve recorded, Average Carrying Value Recognized	2,350	2,225	3,132	2,255
With required reserve recorded, Interest Income	22	23	43	46
Carrying Value	2,495	3,131	2,495	3,131
Unpaid Balance Principal	2,682	3,307	2,682	3,307
With required reserve recorded, Required Reserve	83	95	83	95
Average Carrying Value Recognized	2,607	2,902	3,397	2,968
Interest Income	22	24	43	48
Construction and Land Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
With no required reserve recorded, Required Reserve	0	0	0	0
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
With no required reserve recorded, Carrying Value		77		77
With no required reserve recorded, Unpaid Balance Principal		97		97
With no required reserve recorded, Required Reserve	0	0	0	0
With no required reserve recorded, Average Carrying Value Recognized	1	213	4	380
With no required reserve recorded, Interest Income		1		2
With required reserve recorded, Carrying Value	224	103	224	103
With required reserve recorded, Unpaid Balance Principal	243	103	243	103
With required reserve recorded, Required Reserve	9	15	9	15
With required reserve recorded, Average Carrying Value Recognized	321	78	347	94
With required reserve recorded, Interest Income	1	1	2	2
Carrying Value	224	180	224	180
Unpaid Balance Principal	243	200	243	200
With required reserve recorded, Required Reserve	9	15	9	15
Average Carrying Value Recognized	322	291	351	474
Interest Income	1	2	2	4
Municipal [Member] | Municipal [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
With no required reserve recorded, Required Reserve	0	0	0	0
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
With no required reserve recorded, Carrying Value	251	612	251	612
With no required reserve recorded, Unpaid Balance Principal	287	645	287	645
With no required reserve recorded, Required Reserve	0	0	0	0
With no required reserve recorded, Average Carrying Value Recognized	256	346	261	266
With required reserve recorded, Carrying Value	2,020	2,104	2,020	2,104
With required reserve recorded, Unpaid Balance Principal	2,152	2,227	2,152	2,227
With required reserve recorded, Required Reserve	74	80	74	80
With required reserve recorded, Average Carrying Value Recognized	2,029	2,147	2,785	2,161
With required reserve recorded, Interest Income	21	22	41	44
Carrying Value	2,271	2,716	2,271	2,716
Unpaid Balance Principal	2,439	2,872	2,439	2,872
With required reserve recorded, Required Reserve	74	80	74	80
Average Carrying Value Recognized	2,285	2,493	3,046	2,427
Interest Income	21	22	41	44
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
With no required reserve recorded, Carrying Value		235		235
With no required reserve recorded, Unpaid Balance Principal		235		235
With no required reserve recorded, Required Reserve	0	0	0	0
With no required reserve recorded, Average Carrying Value Recognized		118	0	67
Carrying Value		235		235
Unpaid Balance Principal		235		235
Average Carrying Value Recognized		118		67
Interest Income		0		0
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
With no required reserve recorded, Required Reserve	0	0	0	0
Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
With no required reserve recorded, Required Reserve	$ 0	$ 0	$ 0	$ 0

XML

Allowance for Loan Losses - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for credit losses	$ (550,000)	$ 2,775,000
Extended Maturity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Description Of Covid Nineteen Loan Modifications Aggregating Deferral Principal	As of June 30, 2021, and as a result of COVID-19 loan modifications, the Company had modifications of 4 loans aggregating $16,508,000, primarily consisting of short-term payment deferrals. Of these modifications, $16,508,000, or 100%, were performing in accordance with their modified terms.

XML

Reclassifications Out of Accumulated Other Comprehensive Income - Reclassifications Out of Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Provision for income taxes	$ (2,262)	$ (1,061)	$ (3,941)	$ (1,658)
Net income	10,823	10,056	21,593	19,722
Salaries and employee benefits	(12,302)	(10,287)	(24,552)	(21,658)
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net gains on sales of securities	0	0	0	0
Provision for income taxes	0	0	0	0
Net income	0	0	0	0
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Accretion of Unrealized Losses Transferred [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net gains on sales of securities	(214)	(219)	(369)	(441)
Provision for income taxes	65	57	106	115
Net income	(149)	(162)	(263)	(326)
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Prior-Service Costs [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and employee benefits	(54)	(29)	(108)	(58)
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Actuarial Gains (Losses) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Salaries and employee benefits	(510)	(473)	(1,021)	(944)
Reclassification Out of Accumulated Other Comprehensive Income [Member] | Amortization of Defined Benefit Pension Items [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before taxes	(564)	(502)	(1,129)	(1,002)
Provision for income taxes	158	141	317	281
Net income	$ (406)	$ (361)	$ (812)	$ (721)

XML

Earnings Per Share ("EPS") - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2021
Class A Common Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Class A common stock entitled dividend per share percent in comparison to Class B common stock	200.00%

XML

Earnings Per Share ("EPS") - Reconciliation of Basic EPS and Diluted EPS (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income	$ 10,823	$ 10,056	$ 21,593	$ 19,722
Class A Common Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income	$ 8,588	$ 7,967	$ 17,126	$ 15,618
Weighted average shares outstanding, basic	3,661,569	3,652,469	3,659,019	3,652,409
Basic earnings per share	$ 2.35	$ 2.18	$ 4.68	$ 4.28
Net income	$ 8,588	$ 7,967	$ 17,126	$ 15,618
Weighted average shares outstanding, diluted	5,567,909	5,567,909	5,567,909	5,567,909
Diluted earnings per share	$ 1.94	$ 1.81	$ 3.88	$ 3.54
Class B Common Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income	$ 2,235	$ 2,089	$ 4,467	$ 4,104
Weighted average shares outstanding, basic	1,906,340	1,915,440	1,908,890	1,915,500
Basic earnings per share	$ 1.17	$ 1.09	$ 2.34	$ 2.14
Net income	$ 2,235	$ 2,089	$ 4,467	$ 4,104
Weighted average shares outstanding, diluted	1,906,340	1,915,440	1,908,890	1,915,500
Diluted earnings per share	$ 1.17	$ 1.09	$ 2.34	$ 2.14

XML

Employee Benefits - Additional Information (Detail) - USD ($)	Jun. 30, 2021	Jun. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year	$ 743,000	$ 930,000
Defined Benefit Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 1,302,000

XML

Employee Benefits - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Defined Benefit Pension Plan [Member]
Components of net periodic benefit cost
Service cost	$ 379	$ 344	$ 758	$ 688
Interest cost	434	450	868	900
Expected return on plan assets	(1,062)	(952)	(2,123)	(1,904)
Recognized net losses	241	261	482	522
Net periodic benefit cost (credit)	(8)	103	(15)	206
Supplemental Insurance/ Retirement Plan [Member]
Components of net periodic benefit cost
Service cost	363	353	725	706
Interest cost	434	466	869	932
Recognized prior service cost	54	29	108	58
Recognized net losses	269	212	539	422
Net periodic benefit cost (credit)	$ 1,120	$ 1,060	$ 2,241	$ 2,118

XML

Fair Value Measurements - Financial Instruments Measured at Fair Value on a Recurring and Non-recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	$ 232,033	$ 282,448
Fair Value Measurements, Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	205,286	230,172
Fair Value Measurements, Level 3 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	26,747	52,276
Financial Instruments Measured at Fair Value on a Non-recurring Basis Impaired Loans	251	3,178
SBA Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	41,065	44,039
SBA Backed Securities [Member] | Fair Value Measurements, Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	41,065	44,039
U.S. Government Agency and Sponsored Enterprises Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	155,632	177,741
U.S. Government Agency and Sponsored Enterprises Mortgage-Backed Securities [Member] | Fair Value Measurements, Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	155,632	177,741
Privately Issued Residential Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	274	328
Privately Issued Residential Mortgage-Backed Securities [Member] | Fair Value Measurements, Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	274	328
Obligations Issued by States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	26,747	52,276
Obligations Issued by States and Political Subdivisions [Member] | Fair Value Measurements, Level 3 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	26,747	52,276
Other Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	8,315	8,064
Other Debt Securities [Member] | Fair Value Measurements, Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	8,315	8,064
Equity Securities [Member] | Fair Value Measurements, Level 1 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Instruments Measured at Fair Value on a Non Recurring Basis Equity Securities	351	303
Equity Securities [Member] | Fair Value Measurements, Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Instruments Measured at Fair Value on a Non Recurring Basis Equity Securities	1,346	1,365
Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	232,033	282,448
Financial Instruments Measured at Fair Value on a Non-recurring Basis Impaired Loans	251	3,178
Carrying Value [Member] | SBA Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	41,065	44,039
Carrying Value [Member] | U.S. Government Agency and Sponsored Enterprises Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	155,632	177,741
Carrying Value [Member] | Privately Issued Residential Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	274	328
Carrying Value [Member] | Obligations Issued by States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	26,747	52,276
Carrying Value [Member] | Other Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities AFS	8,315	8,064
Carrying Value [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Instruments Measured at Fair Value on a Non Recurring Basis Equity Securities	$ 1,697	$ 1,668

XML

Fair Value Measurements - Additional Information (Detail) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Specific adjustments to impaired loans recognized	$ 125,000	$ 500,000	$ 501,000
Amortized cost of Level 3 securities	1,635,000	1,635,000	1,635,000
Liabilities measured at fair value on a recurring or nonrecurring basis	0	0	0	$ 0
Transfers between level 1, 2 and 3		0	$ 0
Impaired Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of loans		2,927,000,000
Fair Value Measurements, Level 3 Inputs [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized cost of Level 3 securities	26,747,000	26,747,000		48,739,000
Unrealized loss	$ 0	$ 0		$ 0

XML

Fair Value Measurements - Assets Measured at Fair Value (Detail) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Securities AFS [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Fair Value	$ 26,747	$ 52,276
Valuation Technique	Discounted cash flow	Discounted cash flow
Unobservable Input	Discount rate	Discount rate
Impaired Loans [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Fair Value	$ 251	$ 3,178
Valuation Technique	Appraisal of collateral	Appraisal of collateral
Unobservable Input	Appraisal adjustments	Appraisal adjustments
Minimum [Member] | Securities AFS [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Unobservable Input Value or Range	0.00%
Securities AFS, Unobservable Input Value or Range		0
Minimum [Member] | Impaired Loans [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Unobservable Input Value or Range	0.00%
Impaired Loans, Unobservable Input Value or Range		0
Maximum [Member] | Securities AFS [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Unobservable Input Value or Range	1.00%
Securities AFS, Unobservable Input Value or Range		1.0
Maximum [Member] | Impaired Loans [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Unobservable Input Value or Range	22.00%
Impaired Loans, Unobservable Input Value or Range		17

XML

Fair Value Measurements - Assets Measured at Fair Value (Parenthetical) (Detail)	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Municipal [Member]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Securities maturity period	one year or less	one year or less

XML

Fair Value Measurements - Changes in Level 3 Securities (Detail) - Obligations Issued by States and Political Subdivisions [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 52,276	$ 13,301
Purchases	14,855	44,324
Maturities and calls	(40,347)	(8,879)
Amortization	(37)	(7)
Ending Balance	$ 26,747	$ 48,739

XML

Fair Values of Financial Instruments - Carrying Amount and Fair Value of Company's Financial Instruments (Detail) - USD ($) $ in Thousands		Jun. 30, 2021	Dec. 31, 2020
Financial assets:
Securities held-to-maturity		$ 3,350,561	$ 2,509,088
Loans		2,964,184	2,960,343
Financial liabilities:
Time deposits		433,479	546,143
Other borrowed funds		119,029	177,009
Subordinated debentures		36,083	36,083
Carrying Value [Member]
Financial assets:
Securities held-to-maturity		3,350,561	2,509,088
Loans	[1]	2,964,184	2,960,343
Financial liabilities:
Time deposits		433,479	546,143
Other borrowed funds		119,029	177,009
Subordinated debentures		36,083	36,083
Estimated Fair Value [Member]
Financial assets:
Securities held-to-maturity		3,360,731	2,579,103
Loans	[1]	2,867,548	2,902,390
Financial liabilities:
Time deposits		431,087	556,470
Other borrowed funds		122,560	183,000
Subordinated debentures		36,083	36,083
Fair Value Measurements, Level 2 Inputs [Member]
Financial assets:
Securities held-to-maturity		3,360,731	2,579,103
Financial liabilities:
Time deposits		431,087	556,470
Other borrowed funds		122,560	183,000
Subordinated debentures		36,083	36,083
Fair Value Measurements, Level 3 Inputs [Member]
Financial assets:
Loans	[1]	$ 2,867,548	$ 2,902,390

[1] Comprised of loans (including collateral dependent impaired loans), net of deferred loan costs and the allowance for loanlosses.

XML

Revenue from Contracts with Customers - Schedule of Revenue from Contracts (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Net interest income	$ 29,991	$ 25,818	$ 58,558	$ 51,019
Noninterest income:
Service charges on deposit accounts	2,171	2,023	4,389	4,319
Lockbox fees	966	924	1,962	1,854
Other income	969	1,094	1,958	2,178
Total noninterest income	4,106	4,041	8,309	8,351
ASU 2014-09 [Member]
Disaggregation of Revenue [Line Items]
Net interest income	29,991	25,818	58,558	51,019
Noninterest income:
Service charges on deposit accounts	2,171	2,023	4,389	4,319
Lockbox fees	966	924	1,962	1,854
Other income	969	1,094	1,958	2,178
Total noninterest income	4,106	4,041	8,309	8,351
Total revenues	34,097	29,859	66,867	59,370
ASU 2014-09 [Member] | Revenue Guidance Contracts in Scope of Topic 606 [Member]
Noninterest income:
Service charges on deposit accounts	2,171	2,023	4,389	4,319
Lockbox fees	966	924	1,962	1,854
Other income	671	559	1,366	1,158
Total noninterest income	3,808	3,506	7,717	7,331
Total revenues	$ 3,808	$ 3,506	$ 7,717	$ 7,331

XML

Revenue from Contracts with Customers - Information about Receivables with Customers (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Other Assets [Member]
Disaggregation of Revenue [Line Items]
Receivables, which are included in "Other assets"	$ 1,486	$ 1,397

XML

Leases - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating lease option to extend	options to extend the leases for up to 10 years, and some of which include options to terminate the leases within 1 year.
Sublease Income	$ 20,000
Sublease option to terminate	The sublease expires in 2024 which can be terminated early after each sublease year.
Lease expense	$ 1,475,000	$ 1,399,000
Lease rental income	370,000	347,000
Barry R Sloane [Member]
Lease expense	$ 275,000	$ 219,000
Maximum [Member]
Operating lease remaining lease term	31 years
Minimum [Member]
Operating lease remaining lease term	1 year

XML

Leases - Components of lease expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Operating lease cost	$ 560	$ 546	$ 1,121	$ 1,092
Variable lease cost	201	173	353	307
Total lease cost	$ 761	$ 719	$ 1,474	$ 1,399

XML

Leases - Supplemental cash flow information related to leases (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 542	$ 529	$ 1,083	$ 1,057
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$ 0	$ 434	$ 0	$ 875

XML

Leases - Supplemental balance sheet information related to leases (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Operating Leases:
Operating lease right-of-use assets	$ 12,810	$ 13,713
Operating lease liabilities	$ 13,057	$ 13,935
Weighted Average Remaining Lease Term:
Operating Leases	10 years	10 years
Weighted Average Discount Rate:
Operating Leases	3.10%	3.10%

XML

Leases - Summary of Future Payments of Lease Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Leases [Abstract]
2021	$ 1,088	$ 2,156
2022	1,995	1,995
2023	1,962	1,962
2024	1,692	1,692
2025	1,471	1,471
Thereafter	7,394	7,394
Total lease payments	15,602	16,670
Less imputed interest	2,545	2,735
Present value of lease liability	$ 13,057	$ 13,935

XML

Proposed Transaction with Eastern Bankshares, Inc - Additional Information (Detail) - Eastern Bankshares Inc [Member] - USD ($) $ / shares in Units, $ in Millions		6 Months Ended
	Apr. 07, 2021	Jun. 30, 2021
Subsequent Event [Line Items]
Cash consideration	$ 642.0
Business acquisition related costs		$ 1.2
Business acquisition contingent merger related fee		$ 7.9
Class A Common Stock [Member]
Subsequent Event [Line Items]
Busniess combinaton cash payment for common stock held per share	$ 115.28
Class B Common Stock [Member]
Subsequent Event [Line Items]
Busniess combinaton cash payment for common stock held per share	$ 115.28