Enterprise Bancorp (EBTC) 10-K 10 Mar 22 2021 FY Annual report Financial data

Cover

Cover - USD ($)	12 Months Ended
	Dec. 31, 2021	Mar. 01, 2022	Jun. 30, 2021
Document and Entity Information [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-33912
Entity Registrant Name	Enterprise Bancorp, Inc.
Entity Incorporation, State or Country Code	MA
Entity Tax Identification Number	04-3308902
Entity Address, Address Line One	222 Merrimack Street,
Entity Address, City or Town	Lowell,
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01852
City Area Code	(978)
Local Phone Number	459-9000
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	EBTC
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 326,271,420
Entity Common Stock, Shares Outstanding		12,053,652
Documents Incorporated by Reference	Portions of the registrant’s definitive proxy statement for its annual meeting of shareholders to be held on May 3, 2022, are incorporated by reference in Part III of this Form 10-K.
Entity Central Index Key	0001018399
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2021
Auditor Information [Abstract]
Auditor Name	RSM US LLP
Auditor Location	Boston, Massachusetts
Auditor Firm ID	49

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Cash and cash equivalents:
Cash and due from banks	$ 33,572	$ 40,636
Interest-earning deposits with banks	403,004	213,146
Total cash and cash equivalents	436,576	253,782
Investments:
Debt securities at fair value (amortized cost of $950,523 and $551,191, respectively)	956,430	582,303
Equity securities at fair value	1,785	746
Total investment securities at fair value	958,215	583,049
Federal Home Loan Bank ("FHLB") stock	2,164	1,905
Loans held for sale	0	371
Loans:
Total loans	2,920,684	3,073,860
Allowance for credit losses	(47,704)	(44,565)
Net loans	2,872,980	3,029,295
Premises and equipment, net	44,689	46,708
Lease right-of-use asset	24,295	18,439
Accrued interest receivable	13,354	16,079
Deferred income taxes, net	19,644	11,290
Bank-owned life insurance	62,954	31,363
Prepaid income taxes	279	2,449
Prepaid expenses and other assets	7,013	13,938
Goodwill	5,656	5,656
Total assets	4,447,819	4,014,324
Deposits:
Customer deposits	3,980,239	3,476,268
Brokered deposits	0	74,995
Total deposits	3,980,239	3,551,263
Borrowed funds	5,479	4,774
Subordinated debt	58,979	73,744
Lease liability	23,627	17,539
Accrued expenses and other liabilities	31,063	30,638
Accrued interest payable	1,537	1,940
Total liabilities	4,100,924	3,679,898
Commitments and Contingencies
Shareholders' Equity
Preferred stock $0.01 par value per share; 1,000,000 shares authorized; no shares issued	0	0
Common stock $0.01 par value per share; 40,000,000 shares authorized; 12,038,382 and 11,937,795 shares issued and outstanding, respectively	120	119
Additional paid-in capital	100,352	97,137
Retained earnings	241,761	214,977
Accumulated other comprehensive income	4,662	22,193
Total shareholders' equity	346,895	334,426
Total liabilities and shareholders' equity	$ 4,447,819	$ 4,014,324

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Amortized Cost	$ 950,523	$ 551,191
Preferred stock, par value (in usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares issued (in shares)	12,038,382	11,937,795
Common stock, shares outstanding (in shares)	12,038,382	11,937,795

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest and dividend income:
Loans and loans held for sale	$ 133,208	$ 131,091	$ 122,082
Investment securities	15,143	13,347	13,135
Other interest-earning assets	682	402	1,891
Total interest and dividend income	149,033	144,840	137,108
Interest expense:
Deposits	3,922	11,599	19,941
Borrowed funds	60	606	385
Subordinated debt	3,495	2,501	925
Total interest expense	7,477	14,706	21,251
Net interest income	141,556	130,134	115,857
Provision for credit losses	1,770	12,499	1,180
Net interest income after provision for credit losses	139,786	117,635	114,677
Non-interest income:
Wealth management fees	6,787	5,815	5,494
Deposit and interchange fees	6,971	6,426	6,870
Income on bank-owned life insurance, net	821	587	638
Net gains on sales of debt securities	128	227	146
Net gains on sales of loans	833	1,409	469
Net gain on sale of OREO	1,126	0	34
Loss on termination of swaps	(1,847)	0	0
Other income	3,288	2,783	2,668
Total non-interest income	18,107	17,247	16,319
Non-interest expense:
Salaries and employee benefits	66,633	61,580	56,059
Occupancy and equipment expenses	9,650	8,546	8,417
Technology and telecommunications expenses	10,574	9,197	7,590
Advertising and public relations expenses	2,373	2,151	2,962
Audit, legal and other professional fees	2,347	2,273	2,039
Deposit insurance premiums	1,910	2,124	876
Supplies and postage expenses	819	898	971
Loss on extinguishment of subordinated debt	713	0	0
Other operating expenses	7,116	6,485	7,501
Total non-interest expense	102,135	93,254	86,415
Income before income taxes	55,758	41,628	44,581
Provision for income taxes	13,587	10,172	10,381
Net income	$ 42,171	$ 31,456	$ 34,200
Basic earnings per share (in dollars per share)	$ 3.51	$ 2.64	$ 2.90
Diluted earnings per share (in dollars per share)	$ 3.50	$ 2.64	$ 2.89
Basic weighted average common shares outstanding (in shares)	12,005,838	11,897,813	11,789,570
Diluted weighted average common shares outstanding (in shares)	12,051,293	11,919,508	11,829,818

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 42,171	$ 31,456	$ 34,200
Other comprehensive (loss) income, net of taxes:
Net change in fair value of debt securities	(19,554)	13,706	11,794
Net change in fair value of cash flow hedges	2,023	(2,023)	0
Total other comprehensive (loss) income, net	(17,531)	11,683	11,794
Total comprehensive income, net	$ 24,640	$ 43,139	$ 45,994

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	CECL adjustment upon adoption	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained EarningsCECL adjustment upon adoption	Accumulated Other Comprehensive Income/(Loss)
Balance, beginning, outstanding (in shares) at Dec. 31, 2018			11,708,218
Balance, beginning at Dec. 31, 2018	$ 255,297		$ 117	$ 91,281	$ 165,183		$ (1,284)
Increase (Decrease) in Shareholders' Equity
Net income	34,200				34,200
Other comprehensive income (loss), net	11,794						11,794
Common stock dividend declared	(7,540)				(7,540)
Common stock issued under dividend reinvestment plan (in shares)			39,176
Common stock issued under dividend reinvestment plan	1,169			1,169
Common stock issued, other (in shares)			2,305
Common stock issued, other	69			69
Stock-based compensation, net (in shares)			61,318
Stock-based compensation, net	1,869		$ 1	1,868
Net settlement for employee taxes on restricted stock and options (in shares)			(8,223)
Net settlement for employee taxes on restricted stock and options	(402)			(402)
Stock options exercised, net (in shares)			22,537
Stock option exercised, net	185			185
Balance, ending, outstanding (in shares) at Dec. 31, 2019			11,825,331
Balance, ending at Dec. 31, 2019	296,641		$ 118	94,170	191,843		10,510
Increase (Decrease) in Shareholders' Equity
Net income	31,456				31,456
Other comprehensive income (loss), net	11,683						11,683
Common stock dividend declared	(8,322)				(8,322)
Common stock issued under dividend reinvestment plan (in shares)			50,506
Common stock issued under dividend reinvestment plan	1,217			1,217
Common stock issued, other (in shares)			3,816
Common stock issued, other	91			91
Stock-based compensation, net (in shares)			65,417
Stock-based compensation, net	1,872		$ 1	1,871
Net settlement for employee taxes on restricted stock and options (in shares)			(8,315)
Net settlement for employee taxes on restricted stock and options	(233)			(233)
Stock options exercised, net (in shares)			1,040
Stock option exercised, net	$ 21			21
Balance, ending, outstanding (in shares) at Dec. 31, 2020	11,937,795		11,937,795
Balance, ending at Dec. 31, 2020	$ 334,426	$ (6,510)	$ 119	97,137	214,977	$ (6,510)	22,193
Increase (Decrease) in Shareholders' Equity
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2016-13 [Member]
Net income	$ 42,171				42,171
Other comprehensive income (loss), net	(17,531)						(17,531)
Common stock dividend declared	(8,877)				(8,877)
Common stock issued under dividend reinvestment plan (in shares)			36,651
Common stock issued under dividend reinvestment plan	1,250			1,250
Common stock issued, other (in shares)			1,766
Common stock issued, other	59			59
Stock-based compensation, net (in shares)			63,329
Stock-based compensation, net	2,094		$ 1	2,093
Net settlement for employee taxes on restricted stock and options (in shares)			(10,029)
Net settlement for employee taxes on restricted stock and options	(346)			(346)
Stock options exercised, net (in shares)			8,870
Stock option exercised, net	$ 159			159
Balance, ending, outstanding (in shares) at Dec. 31, 2021	12,038,382		12,038,382
Balance, ending at Dec. 31, 2021	$ 346,895		$ 120	$ 100,352	$ 241,761		$ 4,662

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]
Common stock dividend declared (in usd per share)	$ 0.74	$ 0.70	$ 0.64

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 42,171	$ 31,456	$ 34,200
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	1,770	12,499	1,180
Depreciation and amortization	7,809	6,784	6,142
Stock-based compensation expense	2,060	1,905	1,872
Income on bank-owned life insurance, net	(821)	(587)	(638)
Net gains on sales of debt securities	(128)	(227)	(146)
Net (gains) losses on equity securities	(246)	49	(367)
Mortgage loans originated for sale	(29,123)	(59,570)	(25,562)
Proceeds from mortgage loans sold	30,327	61,209	26,131
Net gains on sales of loans	(833)	(1,409)	(469)
Net gains on sales of OREO	(1,126)	0	(34)
Loss on termination of swaps	1,847	0	0
Changes in:
Net decrease (increase) in other assets	9,324	(16,997)	136
Net (decrease) increase in other liabilities	(798)	5,223	1,174
Net cash provided by operating activities	62,233	40,335	43,619
Cash flows from investing activities:
Proceeds from sales of debt securities	3,059	5,907	13,623
Purchase of debt securities	(491,213)	(145,319)	(126,872)
Proceeds from maturities, calls and pay-downs of debt securities	87,347	77,534	48,805
Net (purchases) sales of equity securities	(793)	(328)	1,348
Net (purchases) sales of FHLB capital stock	(259)	2,579	873
Net increase (decrease) in loans	146,812	(509,949)	(179,623)
Additions to premises and equipment, net	(4,187)	(6,679)	(12,498)
Proceeds from OREO sales	3,526	0	289
Purchase of bank-owned life insurance	(30,770)	0	0
Net cash used in investing activities	(286,478)	(576,255)	(254,055)
Cash flows from financing activities:
Net increase in deposits	428,976	764,533	221,948
Net increase (decrease) in borrowed funds	705	(91,399)	(4,319)
Repayment of subordinated debt	(15,600)	0	0
Loss on extinguishment of subordinated debt	713	0	0
Proceeds from the issuance of subordinated debt	0	60,000	0
Cash dividends paid, net of dividend reinvestment plan	(7,627)	(7,105)	(6,371)
Proceeds from issuance of common stock	59	91	69
Net settlement for employee taxes on restricted stock and options	(346)	(233)	(402)
Net proceeds from stock option exercises	159	21	185
Net cash provided by financing activities	407,039	725,908	211,110
Net increase in cash and cash equivalents	182,794	189,988	674
Cash and cash equivalents at beginning of year	253,782	63,794	63,120
Cash and cash equivalents at end of year	$ 436,576	$ 253,782	$ 63,794

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies (a) Organization of the Company and Basis of Presentation The accompanying consolidated financial statements of Enterprise Bancorp, Inc. (the "Company," "Enterprise," "we," or "our"), a Massachusetts corporation, include the accounts of the Company and its wholly owned subsidiary, Enterprise Bank and Trust Company, commonly referred to as Enterprise Bank (the "Bank"). The Bank is a Massachusetts trust company and state chartered commercial bank organized in 1989. Substantially all the Company's operations are conducted through the Bank and its subsidiaries. The Bank's subsidiaries include Enterprise Insurance Services, LLC and Enterprise Wealth Services, LLC, both organized under the laws of the State of Delaware, to engage in insurance sales activities and offer non-deposit investment products and services, respectively, and 239 Littleton Road, LLC, organized in 2021 in the State of Massachusetts for the purpose of maintaining and disposing of real estate acquired through the Bank's lending functions. In addition, the Bank has the following subsidiaries that are incorporated in the Commonwealth of Massachusetts and classified as security corporations in accordance with applicable Massachusetts General Laws: Enterprise Security Corporation; Enterprise Security Corporation II; and Enterprise Security Corporation III. The security corporations, which hold various types of qualifying securities, are limited to conducting investment activities that the Bank itself would be allowed to conduct under applicable laws. The Company's headquarters and the Bank's main office are located at 222 Merrimack Street in Lowell, Massachusetts. At December 31, 2021, the Company had 26 full-service branch banking offices serving the Northern Middlesex, Northern Essex and Northern Worcester counties of Massachusetts and Southern Hillsborough and Southern Rockingham counties in New Hampshire. A 27th branch to be located in Londonderry, New Hampshire is expected to open in the third quarter of 2022. Through the Bank and its subsidiaries, the Company offers a range of commercial, residential and consumer loan products, deposit products and cash management services, electronic and digital banking options, and commercial insurance services. The Company also provides a range of wealth management, wealth services and trust services delivered via two channels, Enterprise Wealth Management and Enterprise Wealth Services. The services offered through the Bank and its subsidiaries are managed as one strategic unit and represent the Company's only reportable operating segment. The Federal Deposit Insurance Corporation (the "FDIC") and the Massachusetts Division of Banks (the "Division") have regulatory authority over the Bank. The Bank is also subject to certain regulatory requirements of the Board of Governors of the Federal Reserve System (the "Federal Reserve Board") and, with respect to its New Hampshire branch operations, the New Hampshire Banking Department. The business and operations of the Company are subject to the regulatory oversight of the Federal Reserve Board. The Division also retains supervisory jurisdiction over the Company. The accompanying audited consolidated financial statements and notes thereto have been prepared in accordance with U.S. Generally Accepted Accounting Principles ("GAAP") and the instructions for SEC Form 10-K through the rules and interpretive releases of the SEC under federal securities law. In the opinion of management, the accompanying audited consolidated financial statements reflect all necessary adjustments consisting of normal recurring accruals for a fair presentation. All significant intercompany balances and transactions have been eliminated in the accompanying consolidated financial statements. Certain previous years' amounts in the consolidated financial statements, and notes thereto, have been reclassified to conform to the current year's presentation. The Company has evaluated subsequent events and transactions from December 31, 2021, through the filing date of this Annual Report on Form 10-K with the SEC for potential recognition or disclosure as required by GAAP and determined that there were no material subsequent events requiring recognition or disclosure. (b) Uses of Estimates In preparing the consolidated financial statements in conformity with GAAP, management is required to exercise judgment in determining many of the methodologies, assumptions and estimates to be utilized. These assumptions and estimates affect the reported values of assets and liabilities as of the balance sheet dates and income and expenses for the years then ended. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates should the assumptions and estimates used be incorrect or change over time due to changes in circumstances. Changes in those estimates resulting from continuing changes in the economic environment and other factors will be reflected in the consolidated financial statements and results of operations in future periods. The three most significant areas in which management applies critical assumptions and estimates are the estimates of the allowance for credit losses for loans and available for sale securities, and the impairment review of goodwill, which are each discussed below. (c) Cash and Cash Equivalents Cash equivalents are defined as highly liquid investments with original maturities of three months or less, that are readily convertible to known amounts of cash and present insignificant risk of changes in value due to changes in interest rates. The Company's cash and cash equivalents may be comprised of cash on hand and cash items due from banks, interest-earning deposits with banks (deposit accounts, excess reserve cash balances, money markets, and money market mutual fund accounts) and overnight and term federal funds ("fed funds") sold to money center banks. Balances in cash and cash equivalents will fluctuate due primarily to the timing of net cash flows from deposits, borrowings, loans and investments, and the immediate liquidity needs of the Company. (d) Restricted Cash and Investments Certain of the Company's derivative agreements contain provisions for collateral to be posted if the derivative exposure exceeds a threshold amount. When the Company has pledged cash as collateral in relation to certain derivatives, the cash is carried as restricted cash within "Interest-earning deposits with banks." See Note 9, "Derivatives and Hedging Activities," to the Company's consolidated financial statements of this Form 10-K below for more information about the Company's collateral related to its derivatives. As a member of the FHLB, the Company is required to purchase certain levels of FHLB capital stock at par value in association with outstanding advances from the FHLB. From time-to-time, the FHLB may initiate the repurchase, at par value, of "excess" levels of its capital stock held by member banks. This stock is classified as a restricted investment and is carried at cost, which management believes approximates fair value. FHLB stock represents the only restricted investment held by the Company. Management regularly reviews its holdings of FHLB stock for impairment, and as of December 31, 2021, the Company has determined that no allowance for credit losses on FHLB stock was necessary. See Note 2, "Investment Securities," to the Company's consolidated financial statements of this Form 10-K, contained below, for additional information on management's assessment of expected credit losses for available for sale securities. (e) Investment Securities Investments in debt securities that are intended to be held for indefinite periods of time, but which may not be held to maturity or on a long-term basis are considered to be "available-for-sale" and are carried at fair value. Included as available-for-sale are debt securities that are purchased in connection with the Company's asset-liability risk management strategy and that may be sold in response to changes in interest rates, prepayment risk and other related factors. In instances where the Company has the positive intent to hold debt securities to maturity, these securities will be classified as held-to-maturity and carried at amortized cost. As of the balance sheet dates, all the Company's debt securities were classified as available-for-sale and carried at fair value. Net unrealized appreciation and depreciation on debt securities available-for-sale, net of applicable income taxes, are recorded in the Company's Consolidated Statement of Comprehensive Income as a component of "Accumulated other comprehensive (loss) income". The net unrealized gain or loss in the Company's debt security portfolio fluctuates as market interest rates rise and fall. Due to the fixed rate nature of this portfolio, as market rates fall, the value of the portfolio rises, and as market rates rise, the value of the portfolio declines. The unrealized gains or losses on debt securities will also decline as the securities approach maturity. The Company's equity securities are carried at fair value with changes in fair value recognized in the Company's Consolidated Income Statement as a component of "Other income." The net gains and losses on equity securities that will be recognized as a component of "Other income" in the future will depend on the amount of dollars invested in equities, the magnitude of changes in equity markets and the amount of gains or losses realized through equity sales. Investment securities' discounts are accreted and premiums are amortized over the period of estimated principal repayment using methods that approximate the interest method. Gains or losses on the sale of investment securities are recognized on the trade date on a specific identification basis. ACL for Available-for-Sale Securities The Company measures expected credit losses on available-for-sale securities based upon the unrealized gain or loss position of the security. For available-for-sale debt securities in an unrealized loss position, the Company evaluates qualitative criteria to determine any expected loss unless the Company intends to sell, or it is more likely than not that the Company will be required to sell before recovery of the amortized cost. In the latter two circumstances, the Company recognizes the entire difference between the security’s amortized cost basis and its fair value as a write-down of the investment balance with a charge to earnings. Otherwise, management’s analysis considers various factors, which include among other considerations (1) the present value of the cash flows expected to be collected compared to the amortized cost of the security, (2) duration and magnitude of the decline in value, (3) the financial condition of the issuer or issuers, and (4) structure of the security. If the Company does not expect to recover the entire amortized cost basis of the security, an allowance for credit losses for available-for-sale securities would be recorded, with a related charge to earnings, limited by the difference of the amortized cost of the security to its fair value. The Company has elected to exclude accrued interest from the measurement of the allowance for credit losses for available-for-sale debt securities and to continue to write-off uncollectible accrued interest receivable by reversing interest income. At December 31, 2021, management performed its quarterly analysis of all securities with unrealized losses and determined that all were attributable to increases in market yields. Management concluded that no ACL for available-for-sale securities was considered necessary as of December 31, 2021. (f) Loans Held for Sale Depending on the current interest-rate environment, management projections of future interest rates and the overall asset-liability management program of the Company, management may elect to sell those fixed and adjustable rate residential mortgage loans which are eligible for sale in the secondary market or hold some or all of this residential loan production for the Company's portfolio. Mortgage loans are generally not pooled for sale, but instead sold on an individual basis. Enterprise may retain or sell the servicing when selling the loans. Loans sold are subject to standard secondary market underwriting and eligibility representations and warranties over the life of the loan and are subject to an early payment default period covering the first four payments for certain loan sales. Loans held for sale are carried at the lower of aggregate amortized cost or fair value on a separate line on the balance sheet. Fair value is based on comparable market prices for loans with similar rates and terms. When loans are sold, a gain or loss is recognized to the extent that the sales proceeds plus unamortized fees and costs exceed, or are less than, the carrying value of the loans. Gains and losses are determined using the specific identification method. (g) Loans Loans made by the Company to businesses, non-profits and professional practices include commercial real estate mortgage loans, construction and land development loans, secured and unsecured commercial loans and lines of credit, and letters of credit. Loans made to individuals include conventional residential mortgage loans, home equity loans and lines, residential construction loans on owner-occupied primary and secondary residences, and secured and unsecured personal loans and lines of credit. Most loans granted by the Company are collateralized by real estate, equipment, or receivables and/or are guaranteed by the principals of the borrower. The ability and willingness of borrowers to honor their repayment commitments is generally dependent on the health of the real estate sector in the borrowers' geographic areas and the general economy, among other factors. Loans are reported at the principal amount outstanding, net of deferred origination fees and costs. The aggregate amounts of overdrawn deposit accounts are reclassified as loan balances. Loan origination fees received, offset by direct loan origination costs, are deferred and amortized using the straight-line method over three years to five years for lines of credit and demand notes or over the life of the related loans using the level-yield method for all other types of loans. When loans are paid off, the unamortized fees and costs are recognized as an adjustment to interest income. From time to time, the Company participates with other banks in the financing of certain commercial projects. In each case in which the Company participates in a loan, the rights and obligations of each participating bank are divided proportionately among the participating banks in an amount equal to their share of ownership and with equal priority among all banks. Each participation is governed by individual participation agreements executed by the lead bank and the participants at loan origination. When the participation qualifies as a sale under GAAP, the balances participated out to other institutions are not carried as assets on the Company's consolidated financial statements. The Company performs an independent credit analysis of each commitment and a review of the participating institution prior to participation in the loan, and an annual review thereafter of each participating institution. Loans originated by other banks in which the Company is the participating institution are carried in the loan portfolio at the Company's pro rata share of ownership. Participating loans with other institutions provide banks the opportunity to retain customer relationships and reduce credit risk exposure among each participating bank, while providing customers with larger credit vehicles than the individual bank might be willing or able to offer independently. The Company seeks to lessen its credit risk exposure by managing its loan portfolio to avoid concentration by industry, relationship size and source of repayment, and through sound underwriting practices and the credit risk management function; however, management recognizes that credit losses will occur and that the amount of these losses will fluctuate depending on the risk characteristics of the loan portfolio and economic conditions. The Company's loan risk rating system classifies loans depending on risk of loss characteristics. The classifications range from "substantially risk free" for the highest quality loans and loans that are secured by cash collateral, through a satisfactory range of "minimal," "moderate," "better than average," and "average" risk, all of which are considered "pass" rated credits. The adverse classifications range from "special mention," for loans that may need additional monitoring, to the more severe classifications of "substandard," "doubtful," and "loss" based on criteria established under banking regulations. Loans which are evaluated to be of weaker credit quality are classified as adverse and placed on the "watch asset list" and reviewed on a more frequent basis by management. Loans classified as "substandard" include those characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Loans classified as "doubtful" have all the weaknesses inherent in a substandard rated loan with the added characteristic that the weaknesses make collection or full payment from liquidation, based on existing facts, conditions, and values, highly questionable and improbable. Loans classified as "loss" are generally considered uncollectible at present, although long term recovery of part or all of loan proceeds may be possible. These "loss" loans would require a specific loss reserve or charge-off. Adversely classified loans may be accruing or in non-accrual status and may be additionally designated as impaired or restructured, or some combination thereof. Loans on which the accrual of interest has been discontinued are designated as non-accrual loans and the classified portions are credit downgraded to one of the adversely classified categories noted above. Accrual of interest on loans is generally discontinued when a loan becomes contractually past due, with respect to interest or principal, by 90 days, or when reasonable doubt exists as to the full and timely collection of interest or principal. When a loan is placed on non-accrual status, all interest previously accrued but not collected is reversed against current period interest income. Interest accruals are resumed on such loans only when payments are brought current and have remained current for a period of 180 days or when, in the judgment of management, the collectability of both principal and interest is reasonably assured. Interest payments received on loans in a non-accrual status are generally applied to principal on the books of the Company. Loans individually evaluated consist primarily of loans for which management considers it probable that not all amounts due (principals and interest) will be collected in accordance with the original contractual terms and loans designated as TDRs and to a lesser extent, if applicable, loans that management deems as individually significant or with unique risk characteristics or for some other reason based on management’s judgement. Management considers the individual payment status, net worth and earnings potential of the borrower, and the value and cash flow of the collateral as factors to determine if a loan will be paid in accordance with its contractual terms. Management estimates the credit loss by comparing the loan's carrying value against either (i) the present value of the expected future cash flows discounted at the loan's effective interest-rate; (ii) the loan's observable market price; or (iii) the expected realizable fair value of the collateral, in the case of collateral dependent loans. A specific allowance is assigned to the loan for the amount of estimated credit loss. Individually evaluated loans are charged-off, in whole or in part, when management believes that the recorded investment in the loan is uncollectible. Management does not set any minimum delay of payments as a factor in reviewing for individual evaluation. Management considers the individual payment status, net worth and earnings potential of the borrower, and the value and cash flow of the collateral as factors to determine if a loan will be paid in accordance with its contractual terms. Loans are designated as a TDR when, as part of an agreement to modify the original contractual terms of the loan as a result of financial difficulties of the borrower, the Bank grants the borrower a concession on the terms that would not otherwise be considered. Typically, such concessions may consist of one or a combination of the following: a reduction in interest rate to a below market rate, taking into account the credit quality of the note, extension of additional credit based on receipt of adequate collateral, or a deferment or reduction of payments (principal or interest), which materially alters the Bank's position or significantly extends the note's maturity date, such that the present value of cash flows to be received is materially less than those contractually established at the loan’s origination. All loans that are modified are reviewed by the Company to identify if a TDR has occurred. TDR loans are included in the individually evaluated loan category and as such, these loans are individually reviewed and evaluated for specific reserves. Section 4013 of the CARES Act, as amended by the Consolidated Appropriations Act 2021, provides financial institutions the option to suspend the application of GAAP to any loan modification related to COVID-19 from treatment as a TDR for the period between March 1, 2020 and the earlier of (i) 60 days after the end of the national emergency proclamation or (ii) January 1, 2022. A financial institution may elect to suspend GAAP only for a loan that was not more than 30 days past due as of December 31, 2019. In addition, the temporary suspension of GAAP does not apply to any adverse impact on the credit of a borrower that is not related to the COVID-19 pandemic. The suspension of GAAP is applicable for the entire term of the modification, including an interest-rate modification, a forbearance agreement, a repayment plan, or other agreement that defers or delays the payment of principal and/or interest. Accordingly, a financial institution that elects to suspend GAAP pursuant to the CARES Act is not required to increase its reported TDRs at the end of the period of relief, unless the loans require further modification after the expiration of that period. In accordance with the provision of the CARES Act and subsequent extension by the Consolidated Appropriations Act, 2021, management chose to suspend TDR accounting under GAAP in certain circumstances through December 31, 2021. Individually evaluated adversely classified loans and TDR loans will be considered for upgrade based on the borrower's sustained performance over time and their improving financial condition. Consistent with the criteria for returning non-accrual loans to accrual status, the borrower must demonstrate the ability to continue to service the loan in accordance with the original or modified terms and, in the judgment of management, the collectability of the remaining balances, both principal and interest, are reasonably assured. In the case of TDR loans having had a modified interest rate, that rate must be at, or greater than, a market rate for a similar credit at the time of modification for an upgrade to be considered. (h) ACL for Loans On January 1, 2021, the Company adopted ASU 2016-13, including the CECL methodology for estimating the ACL for loans. The CECL methodology requires early recognition of credit losses using a lifetime credit loss measurement approach that also requires the consideration of reasonable and supportable forecasts in the estimate. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, which for the Company is primarily the loan portfolio. It also applies to off-balance sheet credit exposures such as loan commitments, standby letters of credit, financial guarantees, and other similar instruments, which are not unconditionally cancellable. In addition, this standard made changes to the accounting for available-for-sale debt securities, including the requirement for credit losses be presented as an allowance rather than as a write-down. Additionally, the Company has elected to continue to present the accrued interest receivable balance on loans separate from amortized costs, exclude accrued interest from the measurement of the allowance for credit losses for loans and to continue to write-off uncollectible accrued interest receivable by reversing interest income. Arriving at an appropriate level of ACL for loans involves a high degree of management judgement. The ACL for loans is established through a provision for credit losses, a direct charge to earnings. Credit losses are charged against the ACL for loans when management believes that the collectability of the loan principal is unlikely. Recoveries on loans previously charged-off are credited to the allowance. See also Note 4, "ACL for Loans," to the Company's consolidated financial statements of this Form 10-K, for the methodology used to estimate the allowance for credit losses. (i) Other Real Estate Owned Real estate acquired by the Company through foreclosure proceedings or the acceptance of a deed in lieu of foreclosure is classified as other real estate owned ("OREO"). When property is acquired, it is recorded at the estimated fair value of the property acquired, less estimated costs to sell, establishing a new cost basis and carried on the Consolidated Balance Sheet in the line item "Prepaid expenses and other assets." The estimated fair value is based on market appraisals and the Company's internal analysis. Any loan balance more than the estimated realizable fair value on the date of transfer is charged to the allowance for credit losses on that date. All costs incurred thereafter in maintaining the property, as well as subsequent declines in fair value are charged to non-interest expense. (j) Premises and Equipment Land is carried at cost. All other premises and equipment costs are stated at cost less accumulated depreciation and amortization. Depreciation or amortization is computed on a straight-line basis over the lesser of the estimated useful lives of the asset or the respective lease term (including renewal options reasonably certain to be exercised) for leasehold improvements generally as follows: Bank premises, land improvements, and leasehold improvements 10 to 39 years Computer software and equipment 3 to 5 years Furniture, fixtures, and equipment 3 to 10 years (k) Leases Lessees are recognized as right-of-use ("ROU") lease assets and lease liabilities on the balance sheet for all leases with terms longer than 12 months. The lease liability represents the present value of the future lease payments. The ROU asset includes the lease liability, lease prepayments and initial direct costs, less fixed payment lease liabilities. For the Company, leases consist mainly of operating leases on our facilities, mainly branch leases. The Company excludes leases with a term of 12 months or less from the recorded lease liability and ROU asset and accounts for lease and non-lease components (such as common area maintenance) separately. To calculate the lease liability, the Company uses its incremental borrowing rate as the discount rate to determine the net present value of the lease liability. In determining the term of a lease, the Company included option renewal periods that it considered reasonably certain to be exercised. The Company recognizes lease expense on a straight-line basis in the "Occupancy and equipment expenses" line item within the non-interest expense section of the Consolidated Statement of Income. (l) Bank Owned Life Insurance The Company has purchased bank-owned life insurance ("BOLI") as an investment vehicle, on certain current and former senior and executive officers, utilizing the earnings on BOLI to offset the cost of the Company's benefit plans. There are no associated surrender charges under the outstanding policies. Information on the Company's benefit plans is contained in Note 13, "Employee Benefit Plans," to the Company's consolidated financial statements of this Form 10-K, contained below. (m) Impairment of Long-Lived Assets Other than Goodwill The Company reviews long-lived assets, including premises, equipment, and lease right of use assets for impairment on an ongoing basis or whenever events or changes in business circumstances indicate that the remaining useful life may warrant revision or that the carrying amount of the long-lived asset may not be fully recoverable. If impairment is determined to exist, any related impairment loss is recognized through a charge to earnings. Impairment losses on assets disposed of, if any, are based on the estimated proceeds to be received, less cost of disposal. (n) Goodwill Goodwill is carried on the Company's consolidated financial statements and is related to the Company's acquisition of two branch offices in July 2000. In accordance with GAAP, the Company does not amortize goodwill and instead, at least annually, evaluates whether the carrying value of goodwill has become impaired. A determination that goodwill has become impaired results in an immediate write-down of goodwill to its determined value with a resulting charge to the Company's Consolidated Statement of Income. Goodwill is evaluated at the reporting unit level. In the case of the Company, the services offered through the Bank and subsidiaries are managed as one strategic unit and represent the Company’s only reportable operating segment. The Company has the option to perform either (i) a qualitative assessment of whether it is "more likely than not" that the reporting unit's fair value is less than its book value, or (ii) a quantitative assessment. 1. Management's qualitative assessment would take into consideration, among other items, macroeconomic conditions, industry and market considerations, cost or margin factors, financial performance and share price. Based on the qualitative assessment, if the Company were to conclude: a) it is "more likely than not" that the fair value of a reporting unit exceeds its book value, goodwill is deemed not impaired, or b) it is "more likely than not" that the fair value of a reporting unit is less than its book value, a quantitative goodwill analysis must be performed. 2. The Company may elect to forgo the qualitative assessment and perform the quantitative analysis even if management believes that is "more likely than not" that goodwill is not impaired. The quantitative goodwill analysis compares the fair value of the reporting unit with its book value, including goodwill. If the fair value of the reporting unit equals or exceeds its book value, goodwill is deemed not impaired. If the book value of the reporting unit exceeds its fair value, a goodwill impairment loss is recognized for the difference between these amounts, not exceeding the goodwill carrying amount. At December 31, 2021, based on the Company's quantitative analysis, goodwill was deemed not impaired. (o) Wealth Assets Under Management and Administration Wealth assets under management consist of assets managed through Enterprise Wealth Management and Enterprise Wealth Services. Wealth assets under administration consist of 401(k) plans, trust, and custodial accounts. Wealth assets under management and administration are not included in the Consolidated Balance Sheets because they are not assets of the Company. (p) Derivatives and Hedging The Company may enter into derivative financial instruments to add stability to interest expense and to manage its exposure to interest rate movements. These interest rate swaps are designated as cash flow hedges and involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. For derivatives designated and that qualify as cash flow hedges, the gain or loss on the derivative is recorded in Accumulated Other Comprehensive Income ("AOCI"), net of tax and subsequently reclassified into interest income or interest expense in the same period during which the hedged transaction affect

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities As of December 31, 2021, and 2020, the investment portfolio was comprised primarily of debt securities, with a small portion of the investment portfolio invested in equity securities. Debt Securities All of the Company's debt securities were classified as available-for-sale and carried at fair value as of the dates specified in the tables below. The amortized cost and fair values of debt securities at the dates specified are summarized as follows: 2021 (Dollars in thousands) Amortized Unrealized Unrealized Fair Value U.S. treasury securities $ 62,850 $ — $ 684 $ 62,166 Residential federal agency MBS (1) 412,902 2,406 9,113 406,195 Commercial federal agency MBS (1) 99,681 3,783 52 103,412 Taxable municipal securities 272,507 5,607 2,264 275,850 Tax-exempt municipal securities 87,024 5,648 — 92,672 Corporate bonds 8,559 441 — 9,000 Subordinated corporate bonds 7,000 135 — 7,135 Total debt securities, at fair value $ 950,523 $ 18,020 $ 12,113 $ 956,430 2020 (Dollars in thousands) Amortized Unrealized Unrealized Fair Value Residential federal agency MBS (1) $ 209,923 $ 6,339 $ 287 $ 215,975 Commercial federal agency MBS (1) 102,468 7,726 — 110,194 Taxable municipal securities 135,117 9,293 3 144,407 Tax-exempt municipal securities 88,235 7,216 — 95,451 Corporate bonds 10,448 828 — 11,276 Subordinated corporate bonds 5,000 — — 5,000 Total debt securities, at fair value $ 551,191 $ 31,402 $ 290 $ 582,303 __________________________________________ (1) These categories may include investments issued or guaranteed by government sponsored enterprises such as Fannie Mae ("FNMA"), Freddie Mac ("FHLMC"), Federal Farm Credit Bank ("FFCB"), or one of several Federal Home Loan Banks, as well as, investments guaranteed by Ginnie Mae ("GNMA"), a wholly-owned government entity. As of the dates reflected in the tables above, the majority of investments in the residential and commercial federal agency mortgage back securities ("MBS") categories were collateralized mortgage obligations ("CMOs") issued by U.S. government agencies. The remaining MBS investments totaled $22.9 million, and $18.7 million at December 31, 2021 and 2020, respectively. Accrued interest receivable on available-for-sale debt securities, included in the "Accrued Interest Receivable" line item on the Company’s Consolidated Balance Sheets, amounted to $3.2 million and $2.3 million at December 31, 2021 and December 31, 2020, respectively. The following tables summarize the duration of unrealized losses for debt securities at December 31, 2021 and 2020: 2021 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Unrealized Fair Unrealized Fair Unrealized # of Holdings U.S. treasury securities $ 62,166 $ 684 $ — $ — $ 62,166 $ 684 9 Residential federal agency MBS 272,863 6,992 51,281 2,121 324,144 9,113 44 Commercial federal agency MBS 4,897 52 — — 4,897 52 1 Taxable municipal securities 117,388 2,023 6,727 241 124,115 2,264 118 Total temporarily impaired debt securities $ 457,314 $ 9,751 $ 58,008 $ 2,362 $ 515,322 $ 12,113 172 2020 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Unrealized Fair Unrealized Fair Unrealized # of Holdings Residential federal agency MBS $ 51,396 $ 284 $ 2,107 $ 3 $ 53,503 $ 287 10 Taxable municipal securities 1,997 3 — — 1,997 3 4 Total temporarily impaired debt securities $ 53,393 $ 287 $ 2,107 $ 3 $ 55,500 $ 290 14 The contractual maturity distribution at December 31, 2021 of debt securities was as follows: (Dollars in thousands) Amortized Cost Fair Value Due in one year or less $ 13,398 $ 13,478 Due after one, but within five years 189,626 195,778 Due after five, but within ten years 271,354 276,528 Due after ten years 476,145 470,646 Total debt securities $ 950,523 $ 956,430 Scheduled contractual maturities shown above may not reflect the actual maturities of the investments. The actual MBS/CMO cash flows likely will be faster than presented above due to prepayments and amortization. Similarly, included in the table above are callable securities, comprised of municipal securities and corporate bonds, with a fair value of $181.1 million at December 31, 2021, which can be redeemed by the issuers prior to the maturity presented above. Management considers these factors when evaluating the interest-rate risk in the Company's asset-liability management program. From time to time the Company may pledge debt securities as collateral for deposit account balances of municipal customers, and for borrowing capacity with the FHLB and the FRB. The fair value of debt securities pledged as collateral for these purposes was $949.3 million and $577.3 million at December 31, 2021 and 2020, respectively. Sales of debt securities, for the years ended December 31, 2021, 2020, and 2019 are summarized as follows: (Dollars in thousands) 2021 2020 2019 Amortized cost of debt securities sold (1) $ 2,931 $ 5,680 $ 11,621 Gross realized gains on sales 128 227 149 Gross realized losses on sales — — (3) Total proceeds from sales of debt securities $ 3,059 $ 5,907 $ 11,767 __________________________________________ (1) Amortized cost of investments sold is determined on a specific identification basis and includes pending trades based on trade date, if applicable. Tax-exempt interest earned on the municipal securities portfolio was $3.4 million for the year ended December 31, 2021, $3.5 million for the year ended December 31, 2020, and $3.8 million for the year ended December 31, 2019. The average balance of tax-exempt investments was $87.8 million and $91.0 million for the years ended December 31, 2021 and December 31, 2020, respectively. Equity Securities As of December 31, 2021, the Company held equity securities with a fair value of $1.8 million, compared to $746 thousand at December 31, 2020. Included in the equity portfolio were investments with a fair value of $924 thousand and $476 thousand at December 31, 2021 and December 31, 2020, respectively, held in conjunction with the Company's supplemental executive retirement and deferred compensation plan. Gains and losses on equity securities at December 31, 2021 and December 31, 2020 are summarized as follows: (Dollars in thousands) 2021 2020 Net (losses) gains recognized during the period on equity securities $ 246 $ (49) Less: Net (losses) gains realized on equity securities sold during the period 57 (11) Unrealized gains (losses) recognized during the reporting period on equity securities still held at the end of the period (included in other income) $ 189 $ (38)

Loans

Loans	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Loans	Loans Loan Portfolio Classifications Major classifications of loans at amortized cost at the periods indicated were as follows (1) : (Dollars in thousands) December 31, 2021 December 31, 2020 Commercial real estate $ 1,680,792 $ 1,476,236 Commercial and industrial 412,070 435,548 Commercial construction 410,443 371,856 SBA Paycheck Protection Program ("PPP") 71,502 443,070 Total commercial loans 2,574,807 2,726,710 Residential mortgages 256,940 252,995 Home equity loans and lines 80,467 85,178 Consumer 8,470 8,977 Total retail loans 345,877 347,150 Total loans 2,920,684 3,073,860 Allowance for credit losses (47,704) (44,565) Net loans $ 2,872,980 $ 3,029,295 __________________________________________ (1) Upon the adoption of CECL, the Company includes deferred fees as part of the portfolio segment balance at amortized cost. The prior period balances have been adjusted to conform to this presentation. Net deferred loan origination fees included in the portfolio segments in the table above amounted to $7.5 million, including $2.4 million of deferred PPP fees, at December 31, 2021 and $13.4 million, including $10.0 million of deferred PPP fees, at December 31, 2020. Accrued interest receivable on loans amounted to $10.2 million and $13.8 million at December 31, 2021 and December 31, 2020, respectively, and was included in the "Accrued interest receivable" line item on the Company’s Consolidated Balance Sheets. Commercial loans originated by other banks in which the Company is a participating institution are carried at the pro-rata share of ownership and amounted to $62.6 million at December 31, 2021 and $77.1 million at December 31, 2020. See also "Loans serviced for others" below for information related to commercial loans participated out to various other institutions. Related Party Loans Certain of the Company's directors, officers, principal shareholders, and their associates are credit customers of the Company in the ordinary course of business. In addition, certain directors are also directors, trustees, officers or shareholders of corporations and non-profit entities or members of partnerships that are customers of the Bank and that enter into loan and other transactions with the Bank in the ordinary course of business. All loans and commitments included in such transactions are on such terms, including interest rates, repayment terms and collateral, as those prevailing at the time for comparable transactions with persons who are not affiliated with the Bank and do not involve more than a normal risk of collectability or present other features unfavorable to the Bank. As of December 31, 2021, and 2020, the outstanding loan balances to directors, officers, principal shareholders, and their associates were $37.7 million and $48.7 million, respectively. All loans to these related parties were current and accruing at those dates. Unadvanced portions of lines of credit available to these individuals were $14.5 million and $23.2 million, as of December 31, 2021 and 2020, respectively. During 2021, new loans and net increases in loan balances or lines of credit under existing commitments of $2.1 million were made and principal pay-downs of $21.8 million were received. During 2020, new loans and net increases in loan balances or lines of credit under existing commitments of $16.1 million were made and principal pay-downs of $11.4 million were received. Paycheck Protection Program The PPP was created by the CARES Act and instituted by the Small Business Administration (“SBA”), with SBA funding of PPP loans beginning in April 2020. Until the funding for the PPP expired on May 31, 2021, the PPP allowed entities to apply for a 1.00% interest-rate loan with payments generally deferred until the date the lender receives the applicable forgiveness amount from the SBA. PPP loans may be partially or fully forgiven by the SBA if the entity meets certain conditions. In addition, PPP loans carry a put-back provision in the event that a PPP loan is fraudulently originated and the Bank is at fault. The maturity term for any principal portion left unforgiven is either 2 or 5 years from the funding date, depending on when the loan was originated. All PPP loans are fully guaranteed by the SBA and are included in total loans outstanding. In addition to generating interest income, the SBA pays lender’s fees for processing PPP loans. As of December 31, 2021, the Company had received $26.2 million in PPP related SBA fees and is accreting these fees into interest income over the life of the applicable loans. If a PPP loan is forgiven or paid off before maturity, the remaining unearned fee is recognized into income at that time. For the years ended December 31, 2021, and 2020, the Company recognized $16.6 million and $7.2 million in PPP related SBA fees through accretion. The majority of the remaining $2.4 million in fees are expected to be recognized as the PPP loans are forgiven, which we expect to occur over the next several quarters. Management believes the SBA PPP portfolio to be of minimal credit risk, as the average size of PPP loans outstanding at December 31, 2021 was approximately $187 thousand, and Management expects that, based on its due diligence at origination and in the forgiveness application process, the majority of balances will be forgiven, with any remaining balance guaranteed by the SBA. Management has segmented the PPP portfolio as a group of loans with similar risk characteristics in its assessment for credit losses. Loans serviced for others At December 31, 2021 and 2020, the Company was servicing residential mortgage loans owned by investors amounting to $10.4 million and $13.7 million, respectively. Additionally, the Company was servicing commercial loans originated by the Company and participated out to various other institutions amounting to $66.7 million and $65.3 million at December 31, 2021 and 2020, respectively. Loans serving as collateral Loans designated as qualified collateral and pledged to the FHLB for borrowing capacity for the periods indicated are summarized below: (Dollars in thousands) December 31, 2021 December 31, 2020 Commercial real estate $ 143,056 $ 195,936 Residential mortgages 235,744 233,050 Home equity 5,055 5,971 Total loans pledged to FHLB $ 383,855 $ 434,957 Tax-Exempt Interest Tax-exempt interest earned on qualified commercial loans was $1.8 million for the year ended December 31, 2021, $2.0 million for the year ended December 31, 2020, and $2.1 million for the year ended and December 31, 2019. Average tax-exempt loan balances were $54.5 million and $58.0 million for the years ended December 31, 2021 and 2020, respectively.

ACL for Loans

ACL for Loans	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
ACL for Loans	ACL for Loans On January 1, 2021, the Company adopted CECL under the modified retrospective approach. Upon adoption, the Company recorded a reduction to retained earnings of $6.5 million, net of $2.5 million in deferred income taxes. The ACL for loans increased by $6.6 million and the reserve for unfunded commitments (included in other liabilities) increased by $2.4 million. Prior to January 1, 2021, the Company measured the allowance under the incurred loss method. The ACL for loans to total loans ratio was 1.63% at December 31, 2021 and January 1, 2021. Inherent in the lending process is the risk of loss due to customer non-payment, or "credit risk." The Company's commercial lending focus may entail significant additional credit risks compared to long-term financing on existing, owner-occupied residential real estate. The Company seeks to lessen its credit risk exposure by managing its loan portfolio to avoid concentration by industry, relationship size and source of repayment, and through sound underwriting practices and the credit risk management function; however, management recognizes that credit losses will occur and that the amount of these losses will fluctuate depending on the risk characteristics of the loan portfolio and economic conditions. Credit Risk Management The credit risk management function focuses on a wide variety of factors and early detection of credit issues is critical to minimize credit losses. Accordingly, management regularly monitors these factors, among others, through ongoing credit reviews by the Company's Credit Department, an external loan review service, reviews by members of senior management as well as reviews by the Board's Loan Committee and the Board. This review includes the assessment of internal credit quality indicators such as, among others, the risk classification of loans, past due and non-accrual loans, individually evaluated and troubled-debt restructured loans, and the level of foreclosure activity. See item (g) "Loans" contained in Note 1, "Summary of Significant Accounting Policies" of this Form 10-K, for additional information on the Company Credit Risk monitoring and credit quality indicators. ACL for Loans Methodology The CECL methodology requires early recognition of credit losses using an estimated lifetime credit loss measurement that takes into consideration reasonable and supportable forecasts. The ACL for loans is established through a provision for credit losses, recorded as a direct charge to earnings. The ACL for loans is a valuation account that is deducted from the amortized cost to present the net amount of the loan portfolio expected to be collected. Credit losses are charged against the ACL for loans when management believes that the collectability of the amortized cost of a loan's principal balance is unlikely. Recoveries on loans previously charged-off are credited to the ACL for loans, generally at the time cash is received on a charged-off account. Arriving at an appropriate level of ACL for loans involves a high degree of management judgement. The underlying assumptions, estimates and assessments used to estimate the ACL for loans reflects the Company’s best estimate of model assumptions and forecasted conditions at that time. Changes in such estimates can significantly affect the ACL for loans and the provision for credit losses. It is possible and likely that the Company will experience credit losses that are different from the current estimates and future additions to the ACL for loans may be necessary. On a quarterly basis, the Company makes an assessment to estimate the ACL for loans necessary to cover expected credit losses from the loan portfolio as of the specified balance sheet dates. The adequacy of the ACL for loans is reviewed and evaluated on a regular basis by an internal management committee, a sub-committee of the Company's Board of Directors (the "Board") and the full Board. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Company's ACL for loans. Such agencies may require the Company to recognize additions to the ACL for loans based on judgments different from those of management. In making its assessment on the adequacy of the ACL for loans, management considers several quantitative and qualitative factors from internal and external sources relating to past events, current conditions, and reasonable and supportable forecasts, The Company uses a systematic methodology to measure the amount of estimated loan losses. The methodology uses a two-tiered approach that applies general reserves for larger groups of pass-rated homogeneous loans, segmented by loan type and for adversely classified loans not individually evaluated, segmented by internal risk rating, and specific reserves for loans individually evaluated. Loans collectively evaluated The general loss allocation factors consider the quantitative historic loss experience, qualitative or environmental factors such as those identified above, forecasts over the estimated life of the loan pools, as well as regulatory guidance and industry data. I. Pass-rated loans by loan type: Management segments pass-rated loans using the Open Pool method by first calculating each segment's loss rate as net charge-offs over the expected average life of each segment, divided by the average loan balance over that same period. The historic loss factor is an average of the loss rate over each segment’s look-back period, which is defined as the average age of charged-off loans, specific to each segment. These historic loss factors are then adjusted up or down based on management's assessment of quantitative and qualitative factors. These key factors including quantitative facts about the loan portfolio such as: commercial concentrations by industry, property type and real estate location; the growth and composition of the loan portfolio; trends in risk classification of individual loans and higher risk problem assets; the level of delinquent loans and non-performing loans; individually evaluated and restructured loans; the level of foreclosure activity; net charge-offs; as well as trends in the general levels of these indicators. In addition, management monitors qualitative factors such as: expansion in the Company's geographic market area; the experience level of lenders and any changes in underwriting criteria; including general conditions in the multi-family, commercial real estate and construction and development markets in the Company's local region as well as changes in current and forecasted economic conditions, such as changes in gross domestic product, the unemployment rate and new jobs created, real estate values, commercial vacancy rates, recession risk estimates and other relevant economic factors. Management generally uses a two-year reasonable and supportable forecast, and for periods beyond the forecast period, reverts immediately to historical loss rates. Management weighs the current effect of each of these areas on each particular pass-rated loan segment in determining the allowance allocation factors. Management must exercise significant judgment when evaluating the effect of these quantitative and qualitative factors on the amount of the ACL for loans because data may not be reasonably available or directly applicable to determine the precise impact of a factor on the collectability of the loan segment as of the evaluation date. The methodology contemplates a range of acceptable levels for these factors due to the subjective nature of the factors and the qualitative considerations related to the credit risk in the portfolio. II. Adversely classified loan by credit rating: For determining the reserve percentages for adversely classified loans, management has segmented the portfolio by risk rating: Special mention; Substandard; Doubtful; or Loss, after excluding loans that are individually evaluated for impairment. The historic loss factor for adverse loan segments was determined by first tracking a sampling of these loans over a period of time, to determine their ultimate resolution. Those balances resulting in charge-offs were calculated as a percentage of the segment's loan balance and an average was calculated over that same period. This average period may be changed from time to time to be reflective of the most appropriate corresponding conditions (market, economic, etc.). These historic loss factors are then adjusted up or down based on management's assessment of qualitative factors that are likely to cause estimated credit losses as of the evaluation date to differ from the segment's historical loss experience. Management also utilizes regulatory guidance and industry data in relation to the Company's own portfolio statistics as a basis for assessing the reasonableness of the allocation factors for each class of problem-assets. Management recognizes that additional issues may also impact the estimate of expected credit losses to some degree. From time to time management will re-evaluate the qualitative factors, regulatory guidance, and industry data in use in order to consider the impact of other issues which, based on changing circumstances, may become more significant in the future. Loans individually evaluated Loans individually evaluated consist primarily of loans which management considers it probable that not all amounts due (principals and interest) will be collected in accordance with the original contractual terms, loans designated as troubled debt restructurings ("TDRs") and to a lesser extent, if applicable, loans that management deems as individually significant or with unique risk characteristics or for some other reason based on management’s judgement. Management considers the individual payment status, net worth and earnings potential of the borrower, and the value and cash flow of the collateral as factors to determine if a loan will be paid in accordance with its contractual terms. Management estimates the credit loss by comparing the loan's carrying value against either (i) the present value of the expected future cash flows discounted at the loan's effective interest-rate; (ii) the loan's observable market price; or (iii) the expected realizable fair value of the collateral, in the case of collateral dependent loans. A specific allowance is assigned to the loan for the amount of estimated credit loss. Individually evaluated loans are charged-off, in whole or in part, when management believes that the recorded investment in the loan is uncollectible. Reserve for unfunded commitments ASU 2016-13 also applies to off-balance sheet credit exposure for unfunded commitments (commitments to originate loans, additional funding commitments on existing loans, standby letters of credit, financial guarantees and other similar investments) that are not unconditionally cancellable. The reserve for unfunded commitments is included in the line item "Accrued expenses and other liabilities" on the Company’s Consolidated Balance Sheets. The estimate of credit loss incorporates assumptions for both the likelihood and amount of funding over the estimated life of the commitments, including adjustments for current conditions and reasonable and supportable forecasts. Management periodically reviews and updates its assumptions for estimated funding rates. Based on the foregoing, management believes that the Company's ACL for loans and reserve for unfunded commitments is adequate as of December 31, 2021. Current year information is presented below in accordance with CECL; prior year disclosures are reported under legacy GAAP and are included below in this Note 4 under the heading “Prior Period Disclosures under the Incurred Loss Methodology.” The following tables presents the amortized cost basis of the Company's loan portfolio risk ratings within portfolio classifications, by origination date, or revolving status as of December 31, 2021: Term Loans By Origination Year (Dollars in thousands) 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Total Commercial real estate Pass $ 402,838 $ 220,942 $ 239,248 $ 120,286 $ 173,652 $ 479,298 $ 3,019 $ — $ 1,639,283 Special mention — — 989 802 — 7,626 — — 9,417 Substandard — — 2,628 3,111 12,842 13,336 — — 31,917 Doubtful — — — 175 — — — — 175 Total commercial real estate 402,838 220,942 242,865 124,374 186,494 500,260 3,019 — 1,680,792 Commercial and industrial Pass 64,555 40,333 36,177 19,754 14,983 44,835 174,320 1,243 396,200 Special mention — 644 2,173 958 59 1,431 4,053 18 9,336 Substandard — — 15 100 25 3,845 2,440 109 6,534 Total commercial and industrial 64,555 40,977 38,365 20,812 15,067 50,111 180,813 1,370 412,070 Commercial construction Pass 175,069 106,165 54,907 24,343 4,561 19,489 24,864 — 409,398 Substandard — — — — — — — 1,045 1,045 Total commercial construction 175,069 106,165 54,907 24,343 4,561 19,489 24,864 1,045 410,443 SBA PPP (1) 66,232 5,270 — — — — — — 71,502 Residential mortgages Pass 79,130 56,948 27,343 22,743 12,886 55,571 — — 254,621 Special mention — — — — — 590 — — 590 Substandard — — — — — 1,729 — — 1,729 Total residential mortgages 79,130 56,948 27,343 22,743 12,886 57,890 — — 256,940 Home equity Pass 486 478 498 — — 1,727 76,619 414 80,222 Substandard — — — — — 245 — — 245 Total home equity 486 478 498 — — 1,972 76,619 414 80,467 Consumer Pass 2,843 1,498 1,619 1,005 617 390 — 473 8,445 Doubtful 25 — — — — — — — 25 Total consumer 2,868 1,498 1,619 1,005 617 390 — 473 8,470 Total loans $ 791,178 $ 432,278 $ 365,597 $ 193,277 $ 219,625 $ 630,112 $ 285,315 $ 3,302 $ 2,920,684 ____________________________ (1) All SBA PPP loans were pass-rated at December 31, 2021, as these loans are fully guaranteed by the SBA. The total amortized cost basis of adversely classified loans amounted to $61.0 million, or 2.09% of total loans, at December 31, 2021. Past due and non-accrual loans The following table presents an age analysis of past due loans by portfolio classification as of the date indicated: Balance at December 31, 2021 (Dollars in thousands) 30-59 Days 60-89 Days Past Due 90 Days or More Total Past Due Loans (1) Current Loans (1) Total Commercial real estate $ 1,917 $ — $ 1,719 $ 3,636 $ 1,677,156 $ 1,680,792 Commercial and industrial 564 678 194 1,436 410,634 412,070 Commercial construction — — — — 410,443 410,443 SBA PPP 162 19 — 181 71,321 71,502 Residential mortgages 182 — 432 614 256,326 256,940 Home equity 45 — — 45 80,422 80,467 Consumer 7 27 — 34 8,436 8,470 Total loans $ 2,877 $ 724 $ 2,345 $ 5,946 $ 2,914,738 $ 2,920,684 _______________________________________ (1) The loan balances in the table above include loans designated as non-accrual despite their payment due status. The following table presents the amortized cost of non-accrual loans by portfolio classification as of the date indicated: Balance at December 31, 2021 (Dollars in thousands) Total Non-accrual Loans Non-accrual Loans without a Specific Reserve Non-accrual Loans with a Specific Reserve Related Specific Commercial real estate $ 22,870 $ 7,144 $ 15,726 $ 896 Commercial and industrial 1,542 1,337 205 185 Commercial construction 1,045 1,045 — — SBA PPP — — — — Residential mortgages 794 633 161 161 Home equity 246 246 — — Consumer 25 — 25 25 Total loans $ 26,522 $ 10,405 $ 16,117 $ 1,267 At December 31, 2021, all loans past due 90 days or more were carried as non-accrual, in addition to those loans that were less than 90 days past due where reasonable doubt existed as to the full and timely collection of interest or principal that have also been designated as non-accrual, despite their payment due status. Non-accrual loans that were not adversely classified amounted to $3 thousand at December 31, 2021. These balances primarily represented the guaranteed portions of non-performing SBA loans. The ratio of non-accrual loans to total loans amounted to 0.91% at December 31, 2021. At December 31, 2021, additional funding commitments for non-accrual loans were not material. The reduction in interest income for the years ended December 31, associated with non-accruing loans is summarized as follows: (Dollars in thousands) 2021 2020 2019 Income that would have been recognized if non-accrual loans had been current $ 2,028 $ 1,946 $ 1,893 Less income recognized 633 472 244 Reduction in interest income $ 1,395 $ 1,474 $ 1,649 All payments received on individually evaluated loans in non-accrual status are applied to principal. Interest income that was not recognized on loans that were individually evaluated as of December 31, 2021, amounted to $1.4 million. Collateral-dependent loans Loans that have been individually evaluated and repayment is expected substantially from the operations or ultimate sale of the underlying collateral are deemed to be collateral-dependent loans. Collateral-dependent loans are adversely classified loans that may also be TDRs. These loans may be accruing or on non-accrual status. Collateral-dependent loans are carried at the lower of the recorded investment in the loan or the estimated fair value. When the estimated fair value of the underlying collateral, less estimated costs to sell, is not sufficient to cover the outstanding carrying balance on the loan, a specific reserve is assigned for the amount of the estimated credit loss. These estimated credit losses are charged-off, in whole or in part, when management believes that the recorded investment in the loan is uncollectible. Underlying collateral will vary by type of loan, as discussed below. Commercial real estate loans include loans secured by both owner and non-owner occupied (investor) real estate. These loans are typically secured by a variety of commercial, residential investment, and industrial property types, including one-to-four and multi-family apartment buildings, office, industrial, or mixed-use facilities, strip shopping centers, or other commercial properties. Commercial and industrial credits may be unsecured loans and lines to financially strong borrowers, loans secured in whole or in part by real estate unrelated to the principal purpose of the loan or secured by inventories, equipment, or receivables. Commercial construction loans include the development of residential housing and condominium projects, the development of commercial and industrial use property, and loans for the purchase and improvement of raw land. These loans are secured in whole or in part by underlying real estate collateral. Residential mortgage loans and home equity loans and lines may be secured by one-to-four family residential properties serving as the borrower's primary residence, or as vacation homes or investment properties. Consumer loans consist primarily of secured or unsecured personal loans, loans under energy efficiency financing programs in conjunction with Massachusetts public utilities, and overdraft protection lines on checking accounts. The carrying value of collateral dependent loans amounted to $34.6 million at December 31, 2021. Total accruing collateral dependent loans amounted to $8.4 million while non-accrual collateral dependent loans amounted to $26.2 million as of December 31, 2021. The following table presents the recorded investment in collateral dependent individually evaluated loans and the related specific allowance by portfolio allocation as of the date indicated: Balance at December 31, 2021 (Dollars in thousands) Unpaid Total Recorded Recorded Recorded Related Specific Commercial real estate $ 29,562 $ 27,617 $ 11,891 $ 15,726 $ 896 Commercial and industrial 8,880 4,699 4,191 508 128 Commercial construction 1,181 1,045 1,045 — — SBA PPP — — — — — Residential mortgages 1,165 1,033 1,033 — — Home equity 347 246 246 — — Consumer — — — — — Total $ 41,135 $ 34,640 $ 18,406 $ 16,234 $ 1,024 At December 31, 2021, additional funding commitments for collateral dependent loans was not material. The Company's obligation to fulfill the additional funding commitments on individually evaluated loans is generally contingent on the borrower's compliance with the terms of the credit agreement. If the borrower is not in compliance, additional funding commitments may or may not be made at the Company's discretion. At December 31, 2021, additional funding commitments for collateral dependent loans were not material. Troubled debt restructurings At December 31, 2021, payment deferrals related to the COVID-19 pandemic were active on 3 "pass" rated loans amounting to $5.5 million, or 0.2% of total loans. Under the terms of the CARES Act and the Consolidated Appropriations Act, 2021, as discussed below, these loans remain on accrual status. Total TDR loans as of December 31, 2021 were $16.4 million. TDR loans on accrual status amounted to $8.6 million at December 31, 2021. TDR loans included in non-performing loans amounted to $7.8 million at December 31, 2021. The Company continues to work with customers and enters into loan modifications (which may or may not be TDRs) to the extent deemed to be necessary or appropriate while attempting to achieve the best mutual outcome given the individual financial circumstances and future prospects of the borrower. At December 31, 2021, additional funding commitments for TDR loans was not material. The Company's obligation to fulfill the additional funding commitments on TDR loans is generally contingent on the borrower's compliance with the terms of the credit agreement. If the borrower is not in compliance, additional funding commitments may or may not be made at the Company's discretion. The following table presents the number and balance of loans modified as TDRs, by portfolio classification, during the year indicated: December 31, 2021 (Dollars in thousands) Number of Restructurings Pre-modification Outstanding Recorded Investment Post-modification Outstanding Recorded Investment Commercial real estate 3 $ 3,591 $ 3,267 Commercial and industrial 3 96 85 Commercial construction — — — SBA PPP — — — Residential mortgages 1 224 222 Home equity — — — Consumer — — — Total 7 $ 3,911 $ 3,574 There were no subsequent charge-offs of new TDRs noted in the table above during 2021. Interest payments received on non-accruing 2021 and 2020 TDR loans which were applied to principal and not recognized as interest income were not material. Payment defaults by portfolio classification, during the year indicated, on loans modified as TDRs within the preceding twelve months are detailed below: December 31, 2021 (Dollars in thousands) Number of TDRs that Defaulted Post-modification Outstanding Recorded Investment Commercial real estate 1 $ 663 Commercial and industrial 2 33 Commercial construction — — SBA PPP — — Residential mortgages — — Home equity — — Consumer — — Total 3 $ 696 The following table sets forth the post modification balances of TDRs listed by type of modification for TDRs that occurred during the periods indicated: December 31, 2021 (Dollars in thousands) Number of Amount Extended maturity date 3 $ 71 Temporary payment reduction and payment re-amortization of remaining principal over extended term 2 885 Temporary interest-only payment plan 1 14 Other payment concessions 1 2,604 Total 7 $ 3,574 Allowance for credit losses associated with TDR loans listed above $ 33 ACL for loans and provision for credit loss activity For the year ended December 31, 2021, the total provision for credit losses amounted to $1.8 million, and included provisions for credit losses on loans and unfunded commitments. ACL for loans The allowance for credit losses amounted to $47.7 million at December 31, 2021 and the ACL for loans to total loans ratio was 1.63% at December 31, 2021. Changes in the allowance for credit losses for the years ended December 31, 2021, 2020 and 2019 are summarized as follows: (Dollars in thousands) 2021 2020 2019 Balance at beginning of year $ 44,565 $ 33,614 $ 33,849 CECL adjustment upon adoption 6,560 — — Provision 543 12,499 1,180 Recoveries 363 346 778 Less: Charge-offs 4,327 1,894 2,193 Balance at end of year $ 47,704 $ 44,565 $ 33,614 Changes in the allowance for credit losses by portfolio classification for the year ended December 31, 2021 are presented below: (Dollars in thousands) Commercial Real Estate Commercial and Industrial Commercial Construction Residential Mortgage Home Equity Consumer Total Beginning Balance $ 26,755 $ 9,516 $ 6,129 $ 1,530 $ 467 $ 168 $ 44,565 CECL adjustment upon adoption 7,664 1,988 (2,416) (695) (158) 177 6,560 Provision (786) 408 272 570 85 (6) 543 Recoveries 39 139 105 — 71 9 363 Less: Charge-offs 1,825 2,477 — — — 25 4,327 Ending Balance $ 31,847 $ 9,574 $ 4,090 $ 1,405 $ 465 $ 323 $ 47,704 Ending allowance balance: Allocated to loans individually evaluated for impairment $ 896 $ 402 $ — $ 161 $ — $ 25 $ 1,484 Allocated to loans collectively evaluated for impairment $ 30,951 $ 9,172 $ 4,090 $ 1,244 $ 465 $ 298 $ 46,220 Reserve for unfunded commitments The Company’s reserve for unfunded commitments amounted to $3.7 million as of December 31, 2021 and $2.5 million at January 1, 2021. The provision for unfunded commitments amounted $1.2 million for the year ended December 31, 2021. Other real estate owned ("OREO") The Company carried no OREO at December 31, 2021 or December 31, 2020. During the year ended December 31, 2021, there was one addition to OREO, which was subsequently sold during the year. During the year ended December 31, 2020, there were no additions to or sales of OREO. For the years ended December 31, 2021, 2020 and 2019, there were no write downs of OREO. At both December 31, 2021 and December 31, 2020, the Company had no consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings were in process according to local requirements of the applicable jurisdictions. PRIOR PERIOD DISCLOSURES UNDER THE INCURRED LOSS METHODOLOGY The prior year disclosures below were prepared under the incurred loss methodology, before the Company adopted the CECL methodology. See Note 4, "Allowance for Loans Losses," to the Company's audited consolidated financial statements contained in the 2020 Annual Report on Form 10-K for additional information about the incurred loss methodology. The balances of loans as of December 31, 2020 by portfolio classification and evaluation method are summarized as follows: (Dollars in thousands) Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Gross Loans Commercial real estate $ 35,915 $ 1,442,320 $ 1,478,235 Commercial and industrial 8,409 427,251 435,660 Commercial construction 2,999 370,310 373,309 SBA paycheck protection program — 453,084 453,084 Residential mortgages 596 252,375 252,971 Home equity 381 84,625 85,006 Consumer 18 8,963 8,981 Total gross loans $ 48,318 $ 3,038,928 $ 3,087,246 Adversely classified loans-Prior Period The following tables present the Company's credit risk profile for each portfolio classification by internally assigned adverse risk rating category as of the periods indicated: December 31, 2020 (Dollars in thousands) Adversely Classified (1) Not Adversely Classified Gross Loans Substandard Doubtful Loss Commercial real estate $ 40,088 $ 197 $ — $ 1,437,950 $ 1,478,235 Commercial and industrial 7,901 2,293 — 425,466 435,660 Commercial construction 3,501 — — 369,808 373,309 SBA paycheck protection program — — — 453,084 453,084 Residential mortgages 474 — — 252,497 252,971 Home equity 381 — — 84,625 85,006 Consumer 41 — — 8,940 8,981 Total gross loans $ 52,386 $ 2,490 $ — $ 3,032,370 $ 3,087,246 __________________________________ (1) Prior to the adoption of CECL, the Company did not include special-mention risk rated loans as adversely classified. Total adversely classified loans amounted to 1.79% at December 31, 2020. Past due and non-accrual loans - Prior period Loans on which the accrual of interest has been discontinued are designated as non-accrual and the classified portions are credit downgraded to one of the adversely classified categories noted above. Accrual of interest on loans is generally discontinued when a loan becomes contractually past due, with respect to interest or principal, by 90 days, or when reasonable doubt exists as to the full and timely collection of interest or principal. Interest payments received on loans in a non-accrual status are generally applied to principal on the books of the Company. When a loan is placed on non-accrual status, all interest previously accrued but not collected is reversed against current period interest income. Interest accruals are resumed on such loans only when payments are brought current and have remained current for a period of 180 days and when, in the judgment of management, the collectability of both principal and interest is reasonably assured. The following tables present an age analysis of past due loans by portfolio classification as of the dates indicated: Balance at December 31, 2020 (Dollars in thousands) Past Due Past Due Past Due 90 Days or More Total Past Due Loans Current Loans Gross Loans Non-accrual Loans Commercial real estate $ 6,105 $ 499 $ 5,592 $ 12,196 $ 1,466,039 $ 1,478,235 $ 29,680 Commercial and industrial 417 13 607 1,037 434,623 435,660 4,574 Commercial construction 13,466 — 1,351 14,817 358,492 373,309 2,999 SBA paycheck protection program — — — — 453,084 453,084 — Residential mortgages 890 — 290 1,180 251,791 252,971 414 Home equity — — 255 255 84,751 85,006 381 Consumer 2 1 — 3 8,978 8,981 2 Total gross loans $ 20,880 $ 513 $ 8,095 $ 29,488 $ 3,057,758 $ 3,087,246 $ 38,050 At December 31, 2020, all loans past due 90 days or more were carried as non-accrual, in addition to those loans that were less than 90 days past due where reasonable doubt existed as to the full and timely collection of interest or principal that have also been designated as non-accrual, despite their payment due status shown in the tables above. Non-accrual loans that were not adversely classified amounted to $137 thousand at December 31, 2020. These balances primarily represented the guaranteed portions of non-performing SBA loans. The majority of the non-accrual loan balances were also carried as impaired loans during the periods noted and are discussed further below. The ratio of non-accrual loans to total loans amounted to 1.24% at December 31, 2020. Impaired loans - Prior period The carrying value of impaired loans amounted to $48.3 million at December 31, 2020. Total accruing impaired loans amounted to $10.3 million while non-accrual impaired loans amounted to $38.0 million as of December 31, 2020. The following tables set forth the recorded investment in impaired loans and the related specific allowance allocated by portfolio classification as of the dates indicated: Balance at December 31, 2020 (Dollars in thousands) Unpaid Contractual Principal Balance Total Recorded Investment in Impaired Loans Recorded Investment with no Allowance Recorded Investment with Allowance Related Specific Allowance Commercial real estate $ 37,184 $ 35,915 $ 14,728 $ 21,187 $ 3,454 Commercial and industrial 10,628 8,409 4,696 3,713 2,713 Commercial construction 3,668 2,999 2,999 — — SBA paycheck protection program — — — — — Residential mortgages 699 596 596 — — Home equity 539 381 381 — — Consumer 18 18 — 18 18 Total $ 52,736 $ 48,318 $ 23,400 $ 24,918 $ 6,185 The following table presents the average recorded investment in impaired loans by portfolio classification and the related interest recognized during the twelve months indicated: Year ended December 31, 2020 Year ended December 31, 2019 (Dollars in thousands) Average Recorded Interest Income Average Recorded Interest Income Commercial real estate $ 19,606 $ 138 $ 17,033 $ 509 Commercial and industrial 8,639 168 11,135 385 Commercial construction 5,991 22 2,158 81 SBA PPP — — Residential mortgages 854 8 1,024 18 Home equity 410 (1) 447 — Consumer 36 2 28 — Total $ 35,536 $ 337 $ 31,825 $ 993 All payments received on impaired loans in non-accrual status are applied to principal. Interest income that was not recognized on loans that were deemed impaired as of December 31, 2020, and 2019, amounted to $1.4 million, and $1.0 million, respectively. TDRs-Prior Period Total TDR loans, included in the impaired loan balances above, as of December 31, 2020, were $17.7 million. TDR loans on accrual status amounted to $10.3 million at December 31, 2020. TDR loans included in non-performing loans amounted to $7.5 million at December 31, 2020. The following table presents number and balance of loans modified as TDRs, by portfolio classification, during the twelve months indicated: Year ended December 31, 2020 (Dollars in thousands) Number of Pre-modification Post-modificat

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and Equipment Premises and equipment at December 31, 2021, and 2020, are summarized as follows: (Dollars in thousands) 2021 2020 Land and land improvements $ 9,090 $ 9,090 Bank premises and leasehold improvements 53,857 51,312 Computer software and equipment 14,600 13,953 Furniture, fixtures, and equipment 23,734 22,743 Total premises and equipment, before accumulated depreciation 101,281 97,098 Less accumulated depreciation (56,592) (50,390) Total premises and equipment, net of accumulated depreciation $ 44,689 $ 46,708 Total depreciation expense related to premises and equipment amounted to $6.2 million, $5.4 million, and $4.7 million for the years ended December 31, 2021, 2020, and 2019, respectively.

Leases

Leases	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Leases	Leases For the Company, material leases consist of operating leases on our facilities, mainly branch leases; leases 12-months or less and immaterial equipment leases have been excluded. As of December 31, 2021, the Company had 17 active operating real estate leases. The Company's leased facilities are contracted under various non-cancelable operating leases, most of which provide options to the Company to extend the lease periods and include periodic rent adjustments. While the Company typically exercises its option to extend lease terms, the lease contains provisions that allow the Company, upon notification, to terminate the lease at the end of the lease term, or any option period. Several real estate leases also provide the Company the right of first refusal should the property be offered for sale. Lease expenses for the years ended December 31, 2021, 2020 and 2019 amounted to $1.5 million, $1.3 million and $1.4 million, respectively. Variable lease costs and short-term lease expenses included in lease expense during this period were immaterial. The weighted average remaining lease term for operating leases at December 31, 2021 and 2020 was 29.8 years and 26.6 years, respectively. The weighted average discount rate was 3.48% and 3.80% at December 31, 2021 and 2020, respectively. At December 31, 2021, the remaining undiscounted cash flows by year of these lease liabilities were as follows: (Dollars in thousands) Operating Leases 2022 $ 1,376 2023 1,403 2024 1,431 2025 1,438 2026 1,449 Thereafter 31,533 Total lease payments $ 38,630 Less: Imputed interest 15,003 Total lease liability $ 23,627

Deposits

Deposits	12 Months Ended
	Dec. 31, 2021
Deposits:
Deposits	Deposits Deposits at December 31, are summarized as follows: (Dollars in thousands) 2021 2020 Non-interest checking $ 1,364,258 $ 1,164,908 Interest-bearing checking 743,587 599,630 Savings 310,244 256,347 Money market 1,355,701 1,210,414 CDs $250,000 or less 154,403 176,895 CDs greater than $250,000 52,046 68,074 Total customer deposits 3,980,239 3,476,268 Brokered deposits (1) — 74,995 Total deposits $ 3,980,239 $ 3,551,263 __________________________________________ (1) Brokered deposits which are individually $250,000 and under. Total customer deposits include reciprocal balances from checking, money market deposits and CDs received from participating banks in nationwide deposit networks as a result of our customers electing to participate in Company offered programs which allow for enhanced FDIC insurance. Essentially, the equivalent of the customers' original deposited funds comes back to the Company and are carried within the appropriate category under deposits. The Company's balances in these reciprocal products were $546.7 million and $508.4 million at December 31, 2021 and December 31, 2020, respectively. The aggregate amounts of overdrawn deposits that have been reclassified as loan balances were $472 thousand and $330 thousand at December 31, 2021 and 2020, respectively. The following table shows the scheduled maturities of CDs (December 31, 2020 includes brokered CDs with weighted average remaining lives of less than six months): (Dollars in thousands) 2021 2020 Due in less than twelve months $ 154,465 $ 265,833 Due in over one year through two years 43,302 37,908 Due in over two years through three years 6,882 12,305 Due in over three years through four years 1,078 3,365 Due in over four years through five years 491 515 Due in over five years 231 38 Total CDs $ 206,449 $ 319,964

Borrowed Funds and Subordinated

Borrowed Funds and Subordinated Debt	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Borrowed Funds and Subordinated Debt	Borrowed Funds and Subordinated Debt Borrowed funds and subordinated debt outstanding at December 31, for the years indicated are summarized as follows: 2021 2020 2019 (Dollars in thousands) Amount Average Amount Average Amount Average Borrowed funds $ 5,479 1.07 % $ 4,774 0.30 % $ 96,173 1.86 % Subordinated debt 58,979 5.54 % 73,744 5.69 % 14,872 6.22 % Total borrowed funds and subordinated debt $ 64,458 5.16 % $ 78,518 5.36 % $ 111,045 2.44 % At December 31, 2021, 2020 and 2019, borrowed funds were comprised solely of FHLB borrowings. The contractual maturity distribution as of December 31, 2021, of borrowed funds with the weighted average cost for each category is set forth below: 2021 2020 2019 (Dollars in thousands) Balance Rate Balance Rate Balance Rate Overnight $ — — % $ — — % $ 92,000 1.85 % Within 12 months 2,485 0.29 % 4,316 0.33 % 3,697 2.22 % Over 5 years 2,994 1.70 % 458 — % 476 — % At December 31, 2021, 2020, and 2019, outstanding FHLB borrowings, excluding overnight advances, included specific lending projects under the FHLB's community development program. Maximum FHLB and other borrowings outstanding at any month end during 2021 was $8.6 million and $96.2 million for both 2020 and 2019. The following table summarizes the average balance and average cost of borrowed funds for the years indicated: Year ended December 31, 2021 2020 2019 (Dollars in thousands) Average Average Average Average Average Average FHLB advances $ 7,632 0.79 % $ 35,762 1.65 % $ 15,885 2.42 % FRB PPPLF advances — — % 4,703 0.35 % — — % Other borrowings — — % 14 1.07 % 55 2.64 % Total borrowed funds $ 7,632 0.79 % $ 40,479 1.50 % $ 15,940 2.42 % The Company's primary borrowing source is the FHLB, however the Company may choose to borrow from other established business partners. "Other borrowings" represents overnight advances from the FRB discount window or federal funds purchased from correspondent banks, advanced as part of our annual test of these external funding facilities. As a member of the FHLB, the Bank has the potential capacity to borrow an amount up to the value of its discounted qualified collateral. Borrowings from the FHLB are secured by certain securities from the Company's investment portfolio not otherwise pledged and certain residential and commercial real estate loans. At December 31, 2021, based on qualifying collateral less outstanding advances, the Bank had the capacity to borrow additional funds from the FHLB of up to approximately $790.0 million. In addition, based on qualifying collateral, the Bank had the capacity to borrow funds from the FRB discount window up to approximately $350.0 million at December 31, 2021. The Bank also has pre-approved borrowing arrangements with large correspondent banks to provide overnight and short-term borrowing capacity. In April 2020, the Company established access to the FRB's PPPLF, which provided funding secured by the pledge of PPP loans. Advances issued under the PPPLF were non-recourse. The amount and term of an advance matched the amount and remaining term of the PPP loans pledged. The FRB's PPPLF program expired on July 31, 2021. The Company had outstanding subordinated debt, net of deferred issuance costs, of $59.0 million, and $73.7 million at December 31, 2021, and December 31, 2020, respectively. On July 7, 2020, the Company issued $60.0 million of fixed-to-floating rate, 10 year subordinated notes due 2030 (the "2020 Notes"), and callable at the Company's option on or after July 15, 2025. In January 2015, the Company issued $15.0 million of fixed-to-floating rate, 15 year subordinated notes due 2030 (the "2015 Notes") which were redeemed by the Company on March 31, 2021, as discussed below. The July 2020 Notes are intended to qualify as Tier 2 capital for regulatory purposes. The July 2020 Notes pay interest at a fixed rate of 5.25% per annum through October 15, 2025, after which floating quarterly rates apply. Original debt issuance costs were $1.2 million and have been netted against the subordinated debt on the consolidated balance sheet in accordance with accounting guidance. These costs are being amortized to interest expense over the life of the July 2020 Notes.

Derivatives and Hedging Activit

Derivatives and Hedging Activities	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	Derivatives and Hedging Activities The tables below present a summary of the Company's derivative financial instruments, notional amounts and fair values for the periods presented: As of December 31, 2021 (Dollars in thousands) Asset Notional Amount Asset Derivatives (1)(2) Liability Notional Amount Liability Derivatives (1)(2) Derivatives not subject to hedge accounting Interest-rate contracts - pay floating, receive fixed $ 36,263 $ 528 $ — $ — Interest-rate contracts - pay fixed, receive floating — — 36,263 528 Total back-to-back interest-rate swaps $ 36,263 $ 528 $ 36,263 $ 528 As of December 31, 2020 (Dollars in thousands) Asset Notional Amount Asset Derivatives (1)(2) Liability Notional Amount Liability Derivatives (1)(2) Derivatives designated as hedging instruments Interest-rate contracts - pay fixed, receive floating $ — $ — $ 75,000 $ 2,814 Total cash flow hedge interest-rate swaps $ — $ — $ 75,000 $ 2,814 Derivatives not subject to hedge accounting Interest-rate contracts - pay floating, receive fixed $ 38,027 $ 2,286 $ — $ — Interest-rate contracts - pay fixed, receive floating — — 38,027 2,286 Total back-to-back interest-rate swaps $ 38,027 $ 2,286 $ 38,027 $ 2,286 __________________________________________ (1) Accrued interest balances related to the Company’s interest rate swaps are not included in the fair values above and are immaterial. (2) The assets and liabilities related to the pay fixed, receive floating interest-rate contracts are subject to a master netting agreement and are presented net in the Consolidated Balance Sheet. The Company had no derivative fair value hedges at either December 31, 2021 or December 31, 2020. Cash flow hedges Interest-rate swap agreements may be entered into as hedges against adverse interest-rate fluctuations on specifically identified assets or liabilities. The Company’s cash flow hedges are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s wholesale funding. During the first quarter of 2020, the Company entered into three pay fixed, receive float interest rate swaps to hedge the variable cash flows associated with short-term wholesale funding. Each swap had a notional value of $25.0 million with respective maturities of three years, four years and five years. In August 2021, all three interest rate swaps with notional values totaling $75.0 million were terminated resulting in a $1.8 million loss on termination of swaps, which is reported as a component of non-interest income. The Company terminated these interest-rate swaps and accelerated the reclassification of the loss from other comprehensive income to earnings as a result of hedged forecasted transactions becoming probable not to occur. Back-to-Back swaps The Company has a "Back-to-Back Swap" program whereby the Bank enters into an interest-rate swap with qualified commercial banking customers and simultaneously enters into equal and opposite interest-rate swap with a swap counterparty. The customer interest-rate swap agreement allows commercial banking customers to convert a floating-rate loan payment to a fixed-rate payment. Interest-rate swaps with the counterparty are subject to master netting agreements, while interest-rate swaps with customers are not. Each Back-to-Back swap consists of two interest-rate swaps (a customer swap and offsetting counterparty swap) and amounted to a total number of 10 interest-rate swaps outstanding at both December 31, 2021 and December 31, 2020. As a result of this offsetting relationship, there were no net gains or losses recognized in income on Back-to-Back swaps during the years ended December 31, 2021, December 31, 2020, or December 31, 2019. At December 31, 2021 and December 31, 2020, all of the Back-to-Back swaps with the counterparty were in the same liability position, therefore there was no netting reflected in the Company’s Consolidated Balance Sheet. Credit Risk By using derivative financial instruments, the Company exposes itself to counterparty credit risk. Credit risk is the risk of failure by the counterparty to perform under the terms of the derivative contract. When the fair value of a derivative contract is positive, the counterparty owes the Company, which creates credit risk for the Company. When the fair value of a derivative is negative, the Company owes the counterparty and, therefore, it does not possess credit risk. The credit risk in derivative instruments is mitigated by entering into transactions with highly-rated counterparties that management believes to be creditworthy. Additionally, counterparty interest-rate swaps contain provisions for collateral to be posted if the derivative exposure exceeds a threshold amount. The Company had one counterparty and it was rated A and A2 by Standard & Poor's and Moody's, respectively, at December 31, 2021. The Company had no credit risk exposure at either December 31, 2021 or December 31, 2020 relating to interest-rate swaps with counterparties. When the Company has credit risk exposure, collateral is received from the counterparty and held by the Company. Collateral held by the Company is restricted and not considered an asset of the Company. Therefore, it is not carried on the Company's Consolidated Balance Sheet. If the Company posts collateral, the cash is restricted, it is considered an asset of the Company and is carried on the Company's Consolidated Balance Sheet. The Company posted cash collateral of $840 thousand and $5.3 million at December 31, 2021 and December 31, 2020, respectively. Credit-risk-related Contingent Features The Company's interest-rate swaps with counterparties contain credit-risk-related contingent provisions. These provisions provide the counterparty with the right to terminate its derivative positions and require the Company to settle its obligations under the agreements if the Company defaults on certain of its indebtedness. As of December 31, 2021, the fair value of derivatives was in a net liability position, which excludes any adjustment for nonperformance risk related to these agreements was $528 thousand. The Company has minimum collateral posting thresholds with certain of its derivative counterparties and has posted collateral at December 31, 2021 as noted above. Other Derivative Related Activity The Company also participates in loans originated by third party banks, where the originating bank utilizes a back-to-back interest-rate swap structure; however, the Company is not a party to the swap agreements. Under the terms of the loan participations, the Company has accepted contingent liabilities that would only be realized if the swaps were terminated early and there were outstanding losses not covered by the underlying borrowers and the borrowers' pledged collateral. If applicable, the Company's swap-loss exposure would be equal to a percentage of the originating bank's swap loss based on the ratio of the Company's loan participation to the underlying loan. At both December 31, 2021 and December 31, 2020, the Company had one participation loan where the originating bank utilizes a back-to-back interest-rate swap structure. At December 31, 2021, management considers the risk of material swap loss exposure related to this participation loan to be unlikely based the borrower's financial and collateral strength. Management continues to closely monitor for credit changes resulting from the pandemic.

Commitments, Contingencies and

Commitments, Contingencies and Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies and Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk	Commitments, Contingencies and Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk The Company is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to originate loans, letters of credit, and unadvanced portions of loans and lines of credit. The instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the Consolidated Balance Sheets. The contractual amounts of these instruments reflect the extent of involvement the Company has in the particular classes of financial instruments. The Company's exposure to credit loss in the event of nonperformance by the other party to the financial instrument for loan commitments and letters of credit is represented by the contractual amounts of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. Financial instruments with off-balance sheet credit risk at December 31, 2021 and 2020 are as follows: (Dollars in thousands) 2021 2020 Commitments to originate loans $ 38,653 $ 22,957 Commitments to originate residential mortgages loans for sale — 3,121 Commitments to sell residential mortgage loans — 3,493 Letters of credit 23,164 28,038 Unadvanced portions of commercial real estate loans 22,035 14,935 Unadvanced portions of commercial loans and lines 565,921 530,525 Unadvanced portions of construction loans (commercial & residential) 325,348 228,309 Unadvanced portions of home equity lines 126,651 118,686 Unadvanced portions of consumer loans 4,263 4,269 Commitments to originate loans are agreements to lend to a customer provided there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee by the customer. Since some of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer's credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the borrower. The Company originates residential mortgage loans intended for sale under agreements to sell such loans on an individual loan basis and may retain or sell the servicing when selling the loans. Loans sold are subject to standard secondary market underwriting and eligibility representations and warranties over the life of the loan and are subject to an early payment default period covering the first four payments for certain loan sales. Letters of credit are conditional commitments issued by the Company to guarantee the financial obligation or performance of a customer to a third party. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. If the letter of credit is drawn upon, a loan is created for the customer, generally a commercial loan, with the same criteria associated with similar commercial loans. Unadvanced portions of loans and lines of credit represent credit extended to customers but not yet drawn upon and are secured or guaranteed under preexisting loan agreements and credit evaluations having taken into consideration the full commitment amount. See also Note 9, "Derivatives and Hedging Activities," and Note 1, "Summary of Significant Accounting Policies," under Item (p), "Derivatives," to the Company's consolidated financial statements of this Form 10-K, contained above, for information on the Company's interest-rate lock commitments, interest-rate swaps, and participation in loans originated by third-party banks with potential contingent liabilities. There are no material pending legal proceedings to which the Company or its subsidiaries are a party or to which any of its property is subject, other than ordinary and routine litigation incidental to the business of the Company. Management does not

Comprehensive (Loss) Income

Comprehensive (Loss) Income	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Comprehensive (Loss) Income	Comprehensive (Loss) Income The following table presents a reconciliation of the changes in the components of other comprehensive income (loss) for the dates indicated, including the amount of income tax (expense) benefit allocated to each component of other comprehensive income (loss): Year ended December 31, 2021 Year ended December 31, 2020 (Dollars in thousands) Pre-Tax Tax (Expense) Benefit After Tax Amount Pre-Tax Tax (Expense) Benefit After Tax Amount Change in fair value of debt securities $ (25,077) $ 5,622 $ (19,455) $ 17,841 $ (3,958) $ 13,883 Less: net security gains reclassified into non-interest income 128 (29) 99 227 (50) 177 Net change in fair value of debt securities (25,205) 5,651 (19,554) 17,614 (3,908) 13,706 Change in fair value of cash flow hedges 378 (106) 272 (3,328) 935 (2,393) Less: net cash flow hedges losses reclassified into interest expense (2,436) 685 (1,751) (514) 144 (370) Net change in fair value of cash flow hedges 2,814 (791) 2,023 (2,814) 791 (2,023) Total other comprehensive (loss) income, net $ (22,391) $ 4,860 $ (17,531) $ 14,800 $ (3,117) $ 11,683 Information on the Company's accumulated other comprehensive income (loss), net of tax, is comprised of the following components as of the periods indicated: Year ended December 31, 2021 Year ended December 31, 2020 (Dollars in thousands) Unrealized Gains on Debt Securities Unrealized Losses on Cash Flow Hedges Total Unrealized Gains (Losses) on Debt Securities Unrealized Gains (Losses) on Cash Flow Hedges Total Accumulated other comprehensive income - beginning balance $ 24,216 $ (2,023) $ 22,193 $ 10,510 $ — $ 10,510 Total other comprehensive (loss) income, net (19,554) 2,023 (17,531) 13,706 (2,023) 11,683 Accumulated other comprehensive income - ending balance $ 4,662 $ — $ 4,662 $ 24,216 $ (2,023) $ 22,193

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Shareholders' Equity	Shareholders' Equity Shares Authorized and Share Issuance The Company's authorized capital is divided into common stock and preferred stock. The Company is authorized to issue 40,000,000 shares of common stock, with a par value of $0.01 per share, and as of December 31, 2021 had 12,038,382 shares issued and outstanding. Holders of common stock are entitled to one vote per share and are entitled to receive dividends if, as and when declared by the Board. Dividend and liquidation rights of the common stock may be subject to the rights of any outstanding preferred stock. The Company is also authorized to issue 1,000,000 shares of preferred stock, with a par value of $0.01 per share. No preferred stock has been issued as of the date of this Form 10-K. The Company has a shareholders' rights plan. Under the plan, each share of common stock includes a right to purchase under certain circumstances one one-hundredth of a share of the Company's Series A Junior Participating Preferred Stock, par value $0.01 per share, at a purchase price of $122.50 per one one-hundredth of a preferred share, subject to adjustment, or, in certain circumstances, to receive cash, property, shares of common stock or other securities of the Company. The rights are not presently exercisable and remain attached to the shares of common stock until the occurrence of certain triggering events that would ordinarily be associated with an unsolicited acquisition or attempted acquisition of 10% or more of the Company's outstanding shares of common stock. The rights have no voting or dividend privileges, and unless and until they become exercisable, have no dilutive effect on the earnings of the Company. The rights will expire, unless earlier redeemed, exchanged, or otherwise rescinded by the Company, on January 13, 2028. The Company's stock incentive plans permit the Board to grant, under various terms, stock options (for the purchase of newly issued shares of common stock), common stock, restricted stock awards, restricted stock units and stock appreciation rights to officers and other employees, non-employee directors and consultants. Upon vesting, restricted stock awards may be net settled to cover payment for employee tax obligations, resulting in shares of common stock being reacquired by the Company and returned to the pool of shares reserved for issuance under the incentive plans. In accordance with Massachusetts law, shares reacquired by the Company will be treated as authorized but unissued shares. The Company's stock incentive plans also allow for newly issued shares of common stock to be issued without restrictions to officers and other employees, non-employee directors and consultants. From time to time, the Company issues shares to community members for consulting on regional advisory councils and grants shares of fully vested stock as employee anniversary awards. These shares vest immediately and the cost, which is based on the market price on the date of grant and deemed to be immaterial, is expensed in the period in which the services are rendered. See Note 14, "Stock-Based Compensation," to the Company's consolidated financial statements of this Form 10-K, contained below, for additional information regarding the Company's stock incentive plans. In addition, the Company maintains a dividend reinvestment and direct stock purchase plan (together, the "DRSPP") which enables shareholders, at their discretion, to elect to reinvest cash dividends paid on their shares of the Company's common stock by purchasing additional shares of common stock from the Company at a purchase price equal to fair market value. Under the DRSPP, shareholders and new investors also have the opportunity to purchase shares of the Company's common stock without brokerage fees, subject to monthly minimums and maximums. During the years ended December 31, 2021, 2020, and 2019, the direct purchase component of the DRSPP was used by shareholders to purchase 407, 1,869 and 1,609 shares of the Company's common stock totaling $13 thousand, $44 thousand, and $48 thousand, respectively. See "Dividends" below for further information about the dividend reinvestment portion of the DRSPP. Capital Raised and Capital Adequacy Requirements Capital planning by the Company and the Bank considers current needs and anticipated future growth. Ongoing sources of capital include the retention of earnings, less dividends paid, proceeds from the exercise of employee stock options and proceeds from purchases of shares pursuant to the DRSPP. Additional sources of capital for the Company and the Bank have been proceeds from the issuance of common stock and proceeds from the issuance of subordinated debt. The Company believes its current capital is adequate to support ongoing operations. Management believes, as of December 31, 2021, that the Company and the Bank met all capital adequacy requirements to which they were subject. As of December 31, 2021, and December 31, 2020, the Company met the definition of "well-capitalized" under the applicable Federal Reserve Board regulations and the Bank qualified as "well-capitalized" under the prompt corrective action regulations of Basel III and the FDIC. The Company's and the Bank's actual capital amounts and ratios are presented as of December 31, 2021 and December 31, 2020 in the tables below: Actual Minimum Capital for Capital Adequacy Purposes (1) Minimum Capital to be Well-Capitalized (2) (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio As of December 31, 2021 The Company Total Capital to risk-weighted assets ("RWA") $ 435,328 13.73 % $ 253,610 8.00 % N/A N/A Tier 1 Capital to RWA 336,577 10.62 % 190,208 6.00 % N/A N/A Tier 1 Capital to average assets ("AA") or Leverage Ratio 336,577 7.56 % 177,978 4.00 % N/A N/A Common Equity Tier 1 Capital to RWA 336,577 10.62 % 142,656 4.50 % N/A N/A The Bank Total Capital to RWA $ 434,430 13.70 % $ 253,610 8.00 % $ 317,013 10.00 % Tier 1 Capital to RWA 394,658 12.45 % 190,208 6.00 % 253,610 8.00 % Tier 1 Capital to AA, Leverage Ratio 394,658 8.87 % 177,978 4.00 % 222,473 5.00 % Common Equity Tier 1 Capital to RWA 394,658 12.45 % 142,656 4.50 % 206,058 6.50 % Actual Minimum Capital (1) Minimum Capital to be Well-Capitalized (2) (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020 The Company Total Capital to RWA $ 415,999 14.62 % $ 227,631 8.00 % N/A N/A Tier 1 Capital to RWA 306,577 10.77 % 170,723 6.00 % N/A N/A Tier 1 Capital to AA, Leverage Ratio 306,577 7.52 % 163,127 4.00 % N/A N/A Common Equity Tier 1 Capital to RWA 306,577 10.77 % 128,042 4.50 % N/A N/A The Bank Total Capital to RWA $ 413,862 14.55 % $ 227,631 8.00 % $ 284,538 10.00 % Tier 1 Capital to RWA 378,184 13.29 % 170,723 6.00 % 227,631 8.00 % Tier 1 Capital to AA, Leverage Ratio 378,184 9.27 % 163,127 4.00 % 203,909 5.00 % Common Equity Tier 1 Capital to RWA 378,184 13.29 % 128,042 4.50 % 184,950 6.50 % __________________________________________ (1) Before application of the capital conservation buffer of 2.50% as of December 31, 2021 and December 31, 2020. See discussion below. (2) For the Bank to qualify as "well-capitalized," it must maintain at least the minimum ratios listed under the regulatory prompt corrective action framework. This framework does not apply to the Company. The Company is subject to the Basel III capital ratio requirements, which include a "capital conservation buffer" of 2.50% above the regulatory minimum risk-based capital adequacy requirements shown above. If a banking organization dips into its capital conservation buffer it may be restricted in its activities, including its ability to pay dividends and discretionary bonus payments to its executive officers. Both the Company's and the Bank's actual ratios, as outlined in the table above, exceeded the Basel III risk-based capital requirement with the capital conservation buffer as of December 31, 2021. The Basel III minimum capital ratio requirements as applicable to the Company and the Bank with the capital conservation buffer are summarized in the table below: Basel III Minimum for Capital Adequacy Purposes Basel III Additional Capital Conservation Buffer Basel III "Adequate" Ratio with Capital Conservation Buffer Total Capital to RWA 8.00% 2.50% 10.50% Tier 1 Capital to RWA 6.00% 2.50% 8.50% Tier 1 Capital to AA, or Leverage Ratio 4.00% N/A 4.00% Common equity tier 1 capital to RWA 4.50% 2.50% 7.00% Failure to meet minimum capital requirements can initiate or result in certain mandatory and possibly additional discretionary supervisory actions by regulators that, if undertaken, could have a material adverse effect on the Company's consolidated financial statements. Under applicable capital adequacy requirements and the regulatory framework for prompt corrective action applicable to the Bank, the Company must meet specific capital guidelines that involve quantitative measures of the Company's assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The Company's capital amounts and classifications are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. See also "Supervision and Regulation," contained in Item 1, "Business," of this Form 10-K for further information on the Company's Basel III and capital requirements. Dividends Neither the Company nor the Bank may declare or pay dividends on its stock if the effect thereof would cause shareholders' equity to be reduced below applicable regulatory capital requirements or if such declaration and payment would otherwise violate regulatory requirements. As the principal asset of the Company, the Bank currently provides the only source of cash for the payment of dividends by the Company. Under Massachusetts law, trust companies such as the Bank may pay dividends only out of "net profits" and only to the extent that such payments will not impair the Bank's capital stock. Any dividend payment that would exceed the total of the Bank's net profits for the current year plus its retained net profits of the preceding two years would require the Massachusetts Division of Banks' approval. Applicable provisions of the FDIC Improvement Act also prohibit a bank from paying any dividends on its capital stock if the bank is in default on the payment of any assessment to the FDIC or if the payment of dividends would otherwise cause the bank to become "undercapitalized." Any restrictions, regulatory or otherwise, on the ability of the Bank to pay dividends to the Company may restrict the ability of the Company to pay dividends to the holders of its common stock. The statutory term "net profits" essentially equates with the accounting term "net income" and is defined under the Massachusetts banking statutes to mean the remainder of all earnings from current operations plus actual recoveries on loans and investments and other assets after deducting from such total all current operating expenses, actual losses, accrued dividends on any preferred stock and all federal and state taxes. For the year ended December 31, 2021, the Company declared $8.9 million in cash dividends and shareholders utilized the dividend reinvestment portion of the DRSPP to purchase an aggregate of 36,651 shares of the Company's common stock totaling $1.3 million. During the year ended December 31, 2020, the Company declared $8.3 million in cash dividends and shareholders utilized the dividend reinvestment portion of the DRSPP to purchase 50,506 shares of the Company's common stock totaling $1.2 million. In 2019, the Company declared $7.5 million in cash dividends and shareholders utilized the dividend reinvestment portion of the DRSPP to purchase 39,176 shares of the Company's common stock totaling $1.2 million. See "Shares Authorized and Share Issuance" above in this Note 12 of this Form 10-K for more information on the DRSPP, including the direct stock purchase component of the plan.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans Defined Contribution Plans The Company has a 401(k) defined contribution employee benefit plan. The 401(k) plan allows eligible employees to contribute a percentage of their earnings to the plan. A portion of an employee's contribution, as determined by the Compensation and Human Resources Committee of the Board of Directors, is matched by the Company. During the years ended December 31, 2021, 2020, and 2019 the Company's percentage match was 70% up to the first 6% contributed by the employee. All eligible employees, at least 18 years of age and completing 1 hour of service, may participate in the 401(k) plan. Vesting for the Company's 401(k) retirement plan matching contribution is based on years of service with participants becoming 25% vested on the anniversary of their hire date and each subsequent year until they are 100% vested following four years of service. Unvested amounts not distributed to an employee following termination of employment are used to offset plan expenses and the Company's matching contributions. The Company's expense for the 401(k) plan match was $1.7 million, $1.6 million, and $1.5 million, respectively, for the years ended December 31, 2021, 2020, and 2019. Additionally, on December 11, 2018, the Board approved and adopted the Enterprise Bank Supplemental Executive Retirement and Deferred Compensation Plan. The plan is unfunded and is maintained for the purpose of providing deferred compensation to a certain group of management employees. Total expenses for the deferred compensation plan were $611 thousand and $249 thousand for the years ended December 31, 2021 and 2020, respectively. Supplemental Employee Retirement Plan ("SERP") The Company has salary continuation agreements with two of its current executive officers and one former executive officer. These salary continuation agreements provide for predetermined fixed-cash supplemental retirement benefits to be provided for a period of 20 years after each individual reaches a defined "benefit age." The individuals covered under the SERP have reached the defined benefit age and are receiving payments under the SERP. Additionally, the Company has not recognized service costs in the current or prior year as each officer had previously attained their individually defined benefit age and was fully vested under the SERP. This non-qualified plan represents a direct liability of the Company, and as such, the Company has no specific assets set aside to settle the benefit obligation. The aggregate amount accrued, or the "accumulated benefit obligation," is equal to the present value of the benefits to be provided to the employee or any beneficiary. Because the Company's benefit obligations provide for predetermined fixed-cash payments, the Company does not have any unrecognized costs to be included as a component of accumulated other comprehensive income. The amounts charged to expense for the SERP are included in the table below. The Company anticipates accruing an additional $53 thousand to the SERP for the year ending December 31, 2022. The following table provides a reconciliation of the changes in the supplemental retirement benefit obligation and the net periodic benefit cost for the years ended December 31: (Dollars in thousands) 2021 2020 2019 Reconciliation of benefit obligation: Benefit obligation at beginning of year $ 1,923 $ 2,064 $ 2,174 Net periodic benefit cost: Interest cost 61 61 84 Actuarial loss (gain) — 74 82 Net periodic benefit costs $ 61 $ 135 $ 166 Benefits paid (276) (276) (276) Benefit obligation at end of year $ 1,708 $ 1,923 $ 2,064 Funded status: Accrued liability as of December 31 $ (1,708) $ (1,923) $ (2,064) Discount rate used for benefit obligation (1) 3.25 % 3.25 % 4.00 % __________________________________________ (1) Management utilizes the Moody's 20 year AA corporate bond rates to establish the reasonableness of the discount rate used. The Company reviews and periodically updates the discount rate to reflect changes in bond market rates. The impact of the discount rate change is reflected as the actuarial gain or loss. SERP benefits expected to be paid in each of the next five years and in the aggregate five years thereafter: (Dollars in thousands) Payments 2022 $ 276 2023 276 2024 276 2025 276 2026 276 2027-2031 560 Supplemental Life Insurance The Company has provided supplemental life insurance through split-dollar life insurance arrangements for certain executive and senior officers on whom the Bank owns BOLI. See Item (l), "Bank Owned Life Insurance," in Note 1, "Summary of Significant Accounting Policies," to the Company's consolidated financial statements of this Form 10-K, contained above, for further information regarding BOLI. These arrangements provide a death benefit to the officer's designated beneficiaries that extend to post-retirement periods for some of the supplemental life insurance plans. The Company has recognized a liability for these future post-retirement benefits. These non-qualified plans represent a direct liability of the Company, and, as such, the Company has no specific assets set aside to settle the benefit obligation. The funded status is the aggregate amount accrued, or the "accumulated post-retirement benefit obligation," which is the present value of the post-retirement benefits associated with this arrangement. The following table provides a reconciliation of the changes in the post-retirement supplemental life insurance plan obligation and the net periodic benefit cost for the years ended December 31: (Dollars in thousands) 2021 2020 2019 Reconciliation of benefit obligation: Benefit obligation at beginning of year $ 2,631 $ 2,424 $ 2,084 Net periodic benefit cost: Service cost (23) (21) (16) Interest cost 83 87 95 Actuarial loss (gain) (71) 141 261 Total net period cost $ (11) $ 207 $ 340 Benefit obligation at end of year $ 2,620 $ 2,631 $ 2,424 Funded status: Accrued liability as of December 31 $ (2,620) $ (2,631) $ (2,424) Discount rate used for benefit obligation (1) 3.25 % 3.25 % 4.00 % __________________________________________ (1) Management utilizes the Moody's 20 year AA corporate bond rates to establish the reasonableness of the discount rate used. The Company reviews and periodically updates the discount rate to reflect changes in bond market rates. The impact of the discount rate change is reflected as the actuarial gain or loss. The amounts charged to expense for supplemental life insurance are included in the table above. The Company anticipates accruing an additional $117 thousand to the plan for the year ending December 31, 2022.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation The Company currently has one active stock incentive plan: The Enterprise Bancorp, Inc. 2016 Stock Incentive Plan, as amended. The 2016 plan permits the Board to grant, under various terms, common stock, both incentive and non-qualified stock options (for the purchase of newly issued shares of common stock), restricted stock, restricted stock units and stock appreciation rights to officers and other employees, directors, and consultants. Option exercises and restricted stock vesting may be net exercised or net settled to cover option costs and employee tax obligations under the terms of the respective plan. As of December 31, 2021, 507,699 common shares remained available for future grants under the 2016 plan. Awards previously granted under an earlier, now expired plan remain outstanding and may be exercised through 2028. The Company's stock-based compensation expense related to these plans includes stock options and stock awards to officers and other employees included in salary and benefits expense, and stock awards and stock compensation in lieu of cash fees to non-employee directors both included in other operating expenses. Total stock-based compensation expense was $2.1 million for the year ended December 31, 2021 and $1.9 million for the years ended December 31, 2020, and, 2019. The total tax benefit recognized related to the stock-based compensation expense was $579 thousand, $535 thousand, and $526 thousand for the years ended 2021, 2020 and 2019, respectively. Tax benefits associated with employee exercises and vesting of stock compensation of approximately $85 thousand and $137 thousand were recorded as reductions of the Company's income tax expense for the years ended December 31, 2021 and December 31, 2019, respectively, compared with a tax expense of $25 thousand for the year ended December 31, 2020. These amounts, treated as discrete tax items in the period in which they occur, will vary from year to year as a function of the volume of share-based payments vested or exercised and the then current market price of the Company's stock in comparison to the compensation cost recognized in the Company's consolidated financial statements. Stock Option Awards Stock options granted generally vest 50% in year two and 50% in year four, on or about the anniversary date of the awards. Vested stock options are only exercisable while the employee remains employed with the Company and for a limited time thereafter. For all awards, if a grantee's employment or other service relationship, such as service as a director, is terminated for any reason, then any stock options granted that have not vested at the time of such termination generally must be forfeited, unless the Compensation and Human Resources Committee or the Board, as the case may be, waives such forfeiture requirement. Under the terms of the plans, stock options may not be granted at less than 100% of the fair market value of the shares on the date of grant and may not have a term of more than 10 years. Any shares of common stock reserved for issuance pursuant to stock options granted under the plans that are returned to the Company unexercised shall remain available for issuance under such plan, while the plan is effective. For participants owning 10% or more of the Company's outstanding common stock (of which there are currently none), incentive stock options may not be granted at less than 110% of the fair market value of the shares on the date of grant and may not have an expiration term of more than five years. The Company utilizes the Black-Scholes option valuation model in order to determine the per share grant date fair value of stock option grants. The table below provides a summary of the stock options granted, including the weighted average fair value, the fair value as a percentage of the market value of the underlying stock at the date of grant and the average assumptions used in the model for the years indicated: Stock Option Awards 2021 2020 2019 Stock options granted 17,580 24,208 23,218 Term in years 10 10 10 Weighted average assumptions used in the fair value model: Expected volatility 44 % 37 % 33 % Expected dividend yield 3.01 % 3.43 % 2.75 % Expected life in years 6.5 6.5 6.5 Risk-free interest rate 1.28 % 1.02 % 2.58 % Weighted average market price on date of grants $ 32.73 $ 28.22 $ 29.84 Per share weighted average fair value $ 11.95 $ 8.41 $ 8.70 Fair value as a percentage of market value at grant date 36 % 30 % 29 % The expected volatility is the anticipated variability in the Company's share price over the expected life of the stock option and is based on the Company's historical volatility. The expected dividend yield is the Company's projected dividends based on historical annualized dividend yield to coincide with volatility divided by its share price at the date of grant. The expected life represents the period of time that the stock option is expected to be outstanding. The Company utilized the simplified method, under which the expected term equals the vesting term plus the contractual term divided by 2. The risk-free interest rate is based on the U.S. Department of the Treasury rate in effect at the time of grant for a period equivalent to the expected life of the stock option. Stock option transactions during the year ended December 31, 2021 are summarized as follows: (Dollars in thousands, except per share data) Options Weighted Average Exercise Weighted Average Remaining Life in Years Aggregate Outstanding December 31, 2020 181,302 $ 24.07 5.3 $ 627 Granted 17,580 32.73 Exercised 11,347 20.16 Forfeited/Expired 643 30.24 Outstanding December 31, 2021 186,892 $ 25.10 4.9 $ 3,704 Vested and Exercisable at December 31, 2021 128,203 $ 22.60 3.4 $ 2,861 The aggregate intrinsic value in the table above represents the difference between the closing price of the Company's common stock on December 31, 2021 and the exercise price, multiplied by the number of stock options outstanding. The intrinsic value will change based on the fair market value of the Company's common stock. If the closing price was less than the exercise price of the stock option, no intrinsic value was assigned to the grant. The intrinsic value of stock options vested and exercisable represents the total pretax intrinsic value that would have been received by the stock option holders had all in-the-money vested stock option holders exercised their options on December 31, 2021. At December 31, 2021, 128,203 of the vested and exercisable stock options were in-the money. Cash received from stock option exercises amounted to $159 thousand, $21 thousand, and $185 thousand during the years ended December 31, 2021, 2020 and 2019, respectively. The total intrinsic value of stock options exercised amounted to $173 thousand, $8 thousand, and $659 thousand during the years ended December 31, 2021, 2020 and 2019, respectively. Cash paid by the Company for the net settlement of stock options to cover employee tax obligations amounted to $16 thousand and $157 thousand during the years ended December 31, 2021 and 2019, respectively. The Company paid no cash for the net settlement of stock options to cover employee tax obligations during the year ended December 31, 2020. Stock option activity during the year ended December 31, 2021 for unvested options are summarized as follows: Unvested Options Options Weighted Average Grant Date Fair Value Unvested December 31, 2020 59,244 $ 9.27 Granted 17,580 11.95 Vested 17,528 9.73 Forfeited 607 9.63 Unvested December 31, 2021 58,689 $ 9.93 The total fair value of stock options vested (based on grant date fair value) during the years ended December 31, 2021, December 31, 2020 and December 31, 2019 was $171 thousand, $216 thousand, and $187 thousand, respectively. Compensation expense recognized in association with the stock option awards amounted to $187 thousand for the year ended December 31, 2021 and $190 thousand for the years ended December 31, 2020, and 2019. The total tax benefit recognized related to the stock option expense was $52 thousand, $53 thousand, and $54 thousand for the years ended December 31, 2021, 2020, and 2019, respectively. As of December 31, 2021, there was $342 thousand of unrecognized stock-based compensation expense related to non-vested stock options. That cost is expected to be recognized over the remaining weighted average vesting period of 2.5 years. Restricted Stock Awards Restricted stock awards are granted at the market price of the Company's common stock on the date of the grant. Employee restricted stock awards generally vest over four years in equal portions beginning on or about the first anniversary date of the restricted stock award or are performance based restricted stock awards that vest upon the Company achieving certain predefined performance objectives. Non-employee director restricted stock awards generally vest over two years in equal portions beginning on or about the first anniversary date of the restricted stock award. The table below provides a summary of restricted stock awards granted during the years indicated: Restricted Stock Awards (number of underlying shares) 2021 2020 2019 Two-year vesting 8,109 8,295 8,368 Four-year vesting 24,307 26,015 22,403 Performance-based vesting 21,559 25,001 24,427 Total restricted stock awards 53,975 59,311 55,198 Weighted average grant date fair value $ 32.73 $ 28.22 $ 29.84 If a grantee's employment or other service relationship, such as service as a director, is terminated for any reason, then any shares of restricted stock granted that have not vested as of the time of such termination generally must be forfeited, unless the Compensation and Human Resources Committee or the Board, as the case may be, waives such forfeiture requirement. The restricted stock awards allow for the non-forfeitable receipt of dividends, and the voting of all shares, whether or not vested, throughout the vesting periods at the same proportional level as common shares outstanding. Upon vesting, restricted stock awards may be net settled to cover payment for employee tax obligations, resulting in shares of common stock being reacquired by the Company. During the years ended December 31, 2021, 2020, and 2019 the Company paid $330 thousand, $233 thousand, and $245 thousand, respectively, to net settle the vesting of restricted stock awards to cover employee tax obligations. Any shares that are returned to the Company prior to vesting or as payment for employee tax obligations upon vesting shall remain available for issuance under such plan, while the plan is still effective. The following table sets forth a summary of the activity for the Company's restricted stock awards: (Dollars in thousands, except per share data) Restricted Weighted Average Grant Price Per Share Unvested December 31, 2020 116,174 $ 29.70 Granted 53,975 32.73 Vested/released 53,960 30.78 Forfeited 2,318 30.61 Unvested December 31, 2021 113,871 $ 30.61 Stock-based compensation expense recognized in association with the restricted stock awards amounted to $1.6 million for the year ended December 31, 2021, and $1.4 million during each of the years ended 2020, and 2019. The total tax benefit recognized related to restricted stock award compensation expense was $456 thousand, $402 thousand, and $401 thousand for the years ended 2021, 2020, and 2019, respectively. As of December 31, 2021, there remained $2.0 million of unrecognized compensation expense related to the restricted stock awards. That cost is expected to be recognized over the remaining weighted average vesting period of 2.2 years. The total fair value of restricted stock awards vested (based on grant date fair value) during the years ended December 31, 2021, 2020 and 2019 was $1.7 million, $1.3 million, and $1.2 million, respectively. Stock in Lieu of Directors' Fees In addition to restricted stock awards discussed above, the non-employee members of the Company's Board may opt to receive newly issued shares of the Company's common stock in lieu of cash compensation for attendance at Board and Board Committee meetings. These shares are issued annually each January for Board meetings held in the previous year. Directors must make an irrevocable election to receive shares of common stock in lieu of cash fees prior to December 31st of the preceding year. Directors are granted shares of common stock in lieu of cash fees based on an average quarterly close price of the Company's common stock on the NASDAQ Global Market during the year. The 2021 stock in lieu of directors' fees expense was $252 thousand, which represented 7,375 shares issued to Directors in January 2022, at a price of $34.14 per share, and was based on the Company's average quarterly close price in 2021. In 2020, the corresponding expense was $286 thousand, which represented 11,532 shares issued to Directors in January 2021, at a price of $24.77 per share, and was based on the Company's average quarterly close price in 2020. In 2019, the corresponding expense was $253 thousand, which represented 8,346 shares issued to Directors in January 2020, at a price of $30.35 per share, and was based on the Company's average quarterly close price in 2019. The total tax benefit recognized related to the stock in lieu of directors' fees for meeting attendance was $71 thousand, $80 thousand, and $71 thousand, for the years ended 2021, 2020 and 2019, respectively.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The components of income tax expense for the years ended December 31, were calculated using the asset and liability method as follows: (Dollars in thousands) 2021 2020 2019 Current expense: Federal $ 10,786 $ 11,305 $ 7,728 State 3,771 4,542 3,028 Total current expense 14,557 15,847 10,756 Deferred benefit: Federal (945) (3,940) (339) State (25) (1,735) (36) Total deferred benefit (970) (5,675) (375) Total income tax expense $ 13,587 $ 10,172 $ 10,381 The provision for income taxes differs from the amount computed by applying the statutory U.S. federal income tax rate of 21% for 2021, 2020, and 2019 to income before taxes as follows: (Dollars in thousands) 2021 2020 2019 Computed income tax expense at statutory rate $ 11,709 $ 8,742 $ 9,362 State income taxes, net of federal tax benefit 2,959 2,218 2,364 Tax-exempt income, net of disallowance (832) (865) (894) Bank-owned life insurance income, net (172) (123) (134) Tax expense (benefit) from stock compensation (85) 25 (137) Other 8 175 (180) Total income tax expense $ 13,587 $ 10,172 $ 10,381 Effective income tax rate 24.4 % 24.4 % 23.3 % At December 31, the tax effects of each type of income and expense item that give rise to deferred taxes are as follows: (Dollars in thousands) 2021 2020 Deferred tax asset: Allowance for Credit Losses $ 14,277 $ 12,415 Depreciation 2,454 2,174 Supplemental employee retirement plans 794 717 Deferred compensation and benefits 2,799 291 Non-accrual interest 699 610 Stock-based compensation expense 667 662 Lease liability 6,562 4,886 Cashflow hedge swap — 791 Deferred fees on PPP loans 689 2,808 Other 820 13 Total 29,761 25,367 Deferred tax liability: Goodwill 1,571 1,576 Net unrealized gains on equity securities 80 31 Net unrealized gains on debt securities 1,245 6,896 Deferred origination costs 612 645 Lease ROU asset 6,562 4,886 Other 47 43 Total 10,117 14,077 Net deferred tax asset $ 19,644 $ 11,290 Deferred income taxes are recognized based on the expected future tax consequences of differences between the financial statement and tax basis of assets and liabilities, calculated using currently enacted tax rates. Management records net deferred tax assets to the extent we believe these assets will more likely than not be realized. In making this determination, we consider all available positive and negative evidence, including recent financial operations and projected future taxable income. Management believes based upon positive historical and expected future earnings that it is more likely than not the Company will generate sufficient taxable income to realize the deferred tax asset existing at December 31, 2021. However, factors beyond management's control, such as the general state of the economy, can affect future levels of taxable income and there can be no assurances that sufficient taxable income will be generated to fully realize the deferred tax assets in the future. The Company paid total income taxes during the years ended December 31, 2021, 2020, and 2019 of $12.3 million, $17.7 million, and $10.6 million, respectively. The Company did not have any unrecognized tax benefits accrued as income tax liabilities or receivables or as deferred tax items at December 31, 2021 or December 31, 2020. The Company invests in qualified affordable housing projects as a limited partner. during the years ended December 31, 2021, 2020 and 2019, the Company recognized $71 thousand of Federal Low Income Housing tax credits per year. The Company anticipates that it will receive additional tax credits related to the Federal Low Income Housing Tax Credit program in the amount of $36 thousand which is expected to be realized within one year.

Earnings per share

Earnings per share	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Earnings per share	Earnings per Share The table below presents the increase in average shares outstanding, using the treasury stock method, for the diluted earnings per share calculation for the years indicated: 2021 2020 2019 Basic weighted average common shares outstanding 12,005,838 11,897,813 11,789,570 Dilutive shares 45,455 21,695 40,248 Diluted weighted average common shares outstanding 12,051,293 11,919,508 11,829,818 There were 31,677, 75,870 and 52,219 stock options outstanding at December 31, 2021, December 31, 2020, and December 31, 2019, respectively, that were determined to be anti-dilutive and therefore excluded from the calculation of dilutive shares for the years ended December 31, 2021, 2020, and 2019. These stock options, which were not dilutive at that date, may potentially dilute earnings per share in the future. The Company issues stock options and restricted stock awards to officers and other employees and restricted stock awards and stock compensation in lieu of cash fees to non-employee directors. The restricted stock awards allow for the non-forfeitable receipt of dividends, and the voting of all shares, whether or not vested, throughout the vesting periods at the same proportional level as common shares outstanding. The unvested restricted stock awards are the Company's only participating securities and are included in shares outstanding. Unvested participating restricted awards amounted to 113,871 shares and 116,174 shares as of December 31, 2021 and December 31, 2020, respectively.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The FASB defines the fair value of an asset or liability to be the price which a seller would receive in an orderly transaction between market participants (an exit price) and also establishes a fair value hierarchy segregating fair value measurements using three levels of inputs: (Level 1) quoted market prices in active markets for identical assets or liabilities; (Level 2) significant other observable inputs, including quoted prices for similar items in active markets, quoted prices for identical or similar items in markets that are not active, inputs such as interest rates and yield curves, volatilities, prepayment speeds, credit risks and default rates which provide a reasonable basis for fair value determination or inputs derived principally from observed market data; and (Level 3) significant unobservable inputs for situations in which there is little, if any, market activity for the asset or liability. Unobservable inputs must reflect reasonable assumptions that market participants would use in pricing the asset or liability, which are developed based on the best information available under the circumstances. The following tables summarize significant assets and liabilities carried at fair value and placement in the fair value hierarchy at the dates specified: December 31, 2021 Fair Value Measurements Using: (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) Assets measured on a recurring basis: Debt securities $ 956,430 $ — $ 956,430 $ — Equity securities 1,785 1,785 — — FHLB stock 2,164 — 2,164 — Interest-rate swaps 528 — 528 — Assets measured on a non-recurring basis: Individually evaluated loans (collateral dependent) 15,210 — — 15,210 Liabilities measured on a recurring basis: Interest-rate swaps $ 528 $ — $ 528 $ — December 31, 2020 Fair Value Measurements Using: (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) Assets measured on a recurring basis: Debt securities $ 582,303 $ — $ 582,303 $ — Equity securities 746 746 — — FHLB stock 1,905 — 1,905 — Interest-rate swaps 2,286 — 2,286 — Assets measured on a non-recurring basis: Impaired loans (collateral dependent) 18,733 — — 18,733 Liabilities measured on a recurring basis: Interest-rate swaps $ 5,100 $ — $ 5,100 $ — The Company did not transfer any assets between the fair value measurement levels during the years ended December 31, 2021 or December 31, 2020. All of the Company's debt securities are considered "available-for-sale" and are carried at fair value. The debt security category above may include federal agency obligations, U.S. treasury securities, commercial and residential federal agency MBS, municipal securities, corporate bonds, and CDs, as held at those dates. The Company utilizes third-party pricing vendors to provide valuations on its debt securities. Fair values provided by the vendors were generally determined based upon pricing matrices utilizing observable market data inputs for similar or benchmark securities in active markets and/or based on a matrix pricing methodology which employs The Bond Market Association's standard calculations for cash flow and price/yield analysis, live benchmark bond pricing and terms/condition data available from major pricing sources. Therefore, management regards the inputs and methods used by third-party pricing vendors to be "Level 2 inputs and methods" as defined in the "fair value hierarchy." The Company periodically obtains a second price from an impartial third-party on debt securities to assess the reasonableness of prices provided by the primary independent pricing vendor. The Company's equity portfolio fair value is measured based on quoted market prices for the shares; therefore, these securities are categorized as Level 1 within the fair value hierarchy. The Bank is required to purchase FHLB stock at par value in association with advances from the FHLB. The stock is issued, redeemed, repurchased, and transferred by the FHLB only at their fixed par value. This stock is classified as a restricted investment and carried at FHLB par value which management believes approximates fair value; therefore, these securities are categorized as Level 2 measures. See Note 1, "Summary of Significant Accounting Policies," Item (d), "Restricted Cash and Investments," to the Company's consolidated financial statements of this Form 10-K, contained above, for further information regarding the Company's fair value assessment of FHLB capital stock. Individually evaluated loan balances in the table above represent those collateral dependent commercial loans where management has estimated the probable credit loss by comparing the loan's carrying value against the expected realizable fair value of the collateral (appraised value, or internal analysis, less estimated cost to sell, adjusted as necessary for changes in relevant valuation factors subsequent to the measurement date). Certain inputs used in these assessments, and possible subsequent adjustments, are not always observable, and therefore, collateral dependent loans are categorized as Level 3 within the fair value hierarchy. A specific allowance is assigned to the collateral dependent loan for the amount of management's estimated probable credit loss. The specific allowances assigned to the collateral dependent individually evaluated loans amounted to $1.0 million at December 31, 2021 compared to $5.8 million at December 31, 2020. The fair values for the interest-rate swap assets and liabilities, which is comprised of back-to-back swaps and cash flow hedges, represent a Level 2 measurement and are based on settlement values adjusted for credit risks and observable market interest-rate curves. The settlement values are determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative, reflecting the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest-rate curves. Credit risk adjustments consider factors such as the likelihood of default by the Company and its counterparties, its net exposures and remaining contractual life. The change in value of interest-rate swap assets and liabilities attributable to credit risk was not significant during the reported periods. Refer also to Note 9, "Derivatives and Hedging Activities," to the Company's consolidated financial statements of this Form 10-K, for additional information on the Company's interest-rate swaps. Letters of credit are conditional commitments issued by the Company to guarantee the financial obligation or performance of a customer to a third party. The fair value of these commitments was estimated to be the fees charged to enter into similar agreements, and accordingly these fair value measures are deemed to be FASB Level 2 measurements. In accordance with the FASB, the estimated fair values of these commitments are carried on the Consolidated Balance Sheet as a liability and amortized to income over the life of the letters of credit, which are typically one year. The estimated fair value of these commitments carried on the Consolidated Balance Sheets at December 31, 2021 and December 31, 2020 were deemed immaterial. Interest-rate lock commitments related to the origination of mortgage loans that will be sold are considered derivative instruments. The commitments to sell loans are also considered derivative instruments. The Company generally does not pool mortgage loans for sale, but instead sells the loans on an individual basis. To reduce the net interest rate exposure arising from its loan sale activity, the Company enters into the commitment to sell these loans at essentially the same time that the interest-rate lock commitment is quoted on the origination of the loan. The Company estimates the fair value of these derivatives based on current secondary mortgage market prices. These commitments are accounted for in accordance with FASB guidance. The fair values of the Company's derivative instruments are deemed to be FASB Level 2 measurements. At December 31, 2021 and December 31, 2020, the estimated fair value of the Company's interest-rate lock commitments and commitments to sell these mortgage loans were deemed immaterial. The following table presents additional quantitative information about assets measured at fair value on a non-recurring basis for which the Company utilized Level 3 inputs (significant unobservable inputs for situations in which there is little, if any, market activity for the asset or liability) to determine fair value as of December 31, 2021 and December 31, 2020: Fair Value (Dollars in thousands) December 31, 2021 December 31, 2020 Valuation Technique Unobservable Input Unobservable Input Value or Range Assets measured on a non-recurring basis: Individually evaluated loans (collateral dependent) $ 15,210 $ 18,733 Appraisal of collateral Appraisal adjustments (1) 15% - 50% __________________________________________ (1) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. Estimated Fair Values of Assets and Liabilities In addition to disclosures regarding the measurement of assets and liabilities carried at fair value on the Consolidated Balance Sheet, the Company is also required to disclose fair value information about financial instruments for which it is practicable to estimate that value, whether or not recognized on the Consolidated Balance Sheet. The carrying values, estimated fair values and placement in the fair value hierarchy of the Company's financial instruments for which fair value is only disclosed but not recognized on the Consolidated Balance Sheets at the dates indicated are summarized as follows: December 31, 2021 Fair Value Measurement (Dollars in thousands) Carrying Fair Value Level 1 Inputs Level 2 Inputs Level 3 Inputs Financial assets: Loans, net $ 2,872,980 $ 2,922,947 $ — $ — $ 2,922,947 Financial liabilities: CDs 206,449 206,450 — 206,450 — Borrowed funds 5,479 5,121 — 5,121 — Subordinated debt 58,979 58,460 — 58,460 — December 31, 2020 Fair Value Measurement (Dollars in thousands) Carrying Fair Value Level 1 Inputs Level 2 Inputs Level 3 Inputs Financial assets: Loans held for sale $ 371 $ 372 $ — $ 372 $ — Loans, net 3,029,295 3,064,791 — — 3,064,791 Financial liabilities: CDs 244,969 246,498 — 246,498 — Brokered deposits 74,995 76,652 — 76,652 — Borrowed funds 4,774 4,684 — 4,684 — Subordinated debt 73,744 76,769 — 76,769 — Excluded from the tables above are certain financial instruments with carrying values that approximated their fair value at the dates indicated, as they were short-term in nature or payable on demand. These include cash and cash equivalents, accrued interest and non-term deposit accounts. The respective carrying values of these instruments would all be classified within Level 1 of their fair value hierarchy. Also excluded from these tables are the fair values of commitments for unused portions of lines of credit and commitments to originate loans that were short-term, at current market rates and estimated to have no significant change in fair value.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	12 Months Ended
	Dec. 31, 2021
Supplemental Cash Flow Elements [Abstract]
Supplement Cash Flow Information	Supplemental Cash Flow Information The supplemental cash flow information for the years indicated is as follows: (Dollars in thousands) 2021 2020 2019 Supplemental financial data: Cash paid for: interest $ 7,880 $ 13,612 $ 21,384 Cash paid for: income taxes 12,335 17,672 10,557 Cash paid for: lease liability 1,251 1,242 1,205 Supplemental schedule of non-cash activity: Net purchases of investment securities not yet settled — — 810 Transfer from loans to other real estate owned 2,400 — 255 ROU lease assets: operating leases (1) 6,608 27 19,635 _________________________________________ (1) Represents net new right of use ("ROU") lease assets added in the periods indicated.

Condensed Parent Company Only F

Condensed Parent Company Only Financial Statements	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Condensed Parent Company Only Financial Statements	Condensed Parent Company Only Financial Statements Balance Sheets December 31, (Dollars in thousands, except per share data) 2021 2020 Assets Cash $ 1,981 $ 3,302 Investment in subsidiaries 404,975 406,032 Other assets 365 430 Total assets $ 407,321 $ 409,764 Liabilities and Shareholders' Equity Liabilities Subordinated debt $ 58,979 $ 73,744 Accrued interest payable 1,444 1,591 Other liabilities 3 3 Total liabilities 60,426 75,338 Shareholders' equity: Preferred stock, $0.01 par value per share; 1,000,000 shares authorized; no shares issued — — Common stock $0.01 par value per share; 40,000,000 shares authorized; 12,038,382 and 11,937,795 shares issued, respectively 120 119 Additional paid-in capital 100,352 97,137 Retained earnings 241,761 214,977 Accumulated other comprehensive income 4,662 22,193 Total shareholders' equity 346,895 334,426 Total liabilities and shareholders' equity $ 407,321 $ 409,764 Statements of Income For the years ended December 31, (Dollars in thousands) 2021 2020 2019 Equity in undistributed net income of subsidiaries $ 22,985 $ 30,309 $ 29,329 Dividends distributed by subsidiaries 22,350 3,100 5,700 Total income 45,335 33,409 35,029 Interest expense 3,495 2,502 925 Other operating expenses 891 215 226 Total operating expenses 4,386 2,717 1,151 Income before income taxes 40,949 30,692 33,878 Benefit from income taxes (1,222) (764) (322) Net income $ 42,171 $ 31,456 $ 34,200 Parent Company Only Financial Statements Statements of Cash Flows For the years ended December 31, (Dollars in thousands) 2021 2020 2019 Cash flows from operating activities: Net income $ 42,171 $ 31,456 $ 34,200 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed net income of subsidiaries (22,985) (30,309) (29,329) Payment from subsidiary bank for stock compensation expense 2,094 1,872 1,869 Changes in: Net decrease (increase) in other assets 66 (229) (3) Net (decrease) increase in other liabilities (25) 385 12 Net cash provided by operating activities 21,321 3,175 6,749 Cash flows from investing activities: Investment in subsidiary — (53,000) — Net cash provided by investing activities — (53,000) — Cash flows from financing activities: Repayment of subordinated debt (2) (14,887) — — Proceeds from the issuance of subordinated debt — 60,000 — Cash dividends paid, net of dividend reinvestment plan (7,627) (7,105) (6,371) Proceeds from issuance of common stock 59 91 69 Net settlement for employee tax withholding on restricted stock and options (346) (233) (402) Net proceeds from exercise of stock options 159 21 185 Net cash (used in) provided by financing activities (22,642) 52,774 (6,519) Net (decrease) increase in cash and cash equivalents (1,321) 2,949 230 Cash at beginning of year 3,302 353 123 Cash at end of year $ 1,981 $ 3,302 $ 353 The Parent Company's Statements of Comprehensive Income and Statements of Changes in Shareholders' Equity are identical to the Consolidated Statements of Comprehensive Income and the Consolidated Statements of Changes in Shareholders' Equity and therefore are not presented here.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Organization of the Company and Basis of Presentation - Principles of Consolidation	Organization of the Company and Basis of Presentation The accompanying consolidated financial statements of Enterprise Bancorp, Inc. (the "Company," "Enterprise," "we," or "our"), a Massachusetts corporation, include the accounts of the Company and its wholly owned subsidiary, Enterprise Bank and Trust Company, commonly referred to as Enterprise Bank (the "Bank"). The Bank is a Massachusetts trust company and state chartered commercial bank organized in 1989. Substantially all the Company's operations are conducted through the Bank and its subsidiaries. The Bank's subsidiaries include Enterprise Insurance Services, LLC and Enterprise Wealth Services, LLC, both organized under the laws of the State of Delaware, to engage in insurance sales activities and offer non-deposit investment products and services, respectively, and 239 Littleton Road, LLC, organized in 2021 in the State of Massachusetts for the purpose of maintaining and disposing of real estate acquired through the Bank's lending functions. In addition, the Bank has the following subsidiaries that are incorporated in the Commonwealth of Massachusetts and classified as security corporations in accordance with applicable Massachusetts General Laws: Enterprise Security Corporation; Enterprise Security Corporation II; and Enterprise Security Corporation III. The security corporations, which hold various types of qualifying securities, are limited to conducting investment activities that the Bank itself would be allowed to conduct under applicable laws. The Company's headquarters and the Bank's main office are located at 222 Merrimack Street in Lowell, Massachusetts. At December 31, 2021, the Company had 26 full-service branch banking offices serving the Northern Middlesex, Northern Essex and Northern Worcester counties of Massachusetts and Southern Hillsborough and Southern Rockingham counties in New Hampshire. A 27th branch to be located in Londonderry, New Hampshire is expected to open in the third quarter of 2022. Through the Bank and its subsidiaries, the Company offers a range of commercial, residential and consumer loan products, deposit products and cash management services, electronic and digital banking options, and commercial insurance services. The Company also provides a range of wealth management, wealth services and trust services delivered via two channels, Enterprise Wealth Management and Enterprise Wealth Services. The services offered through the Bank and its subsidiaries are managed as one strategic unit and represent the Company's only reportable operating segment. The Federal Deposit Insurance Corporation (the "FDIC") and the Massachusetts Division of Banks (the "Division") have regulatory authority over the Bank. The Bank is also subject to certain regulatory requirements of the Board of Governors of the Federal Reserve System (the "Federal Reserve Board") and, with respect to its New Hampshire branch operations, the New Hampshire Banking Department. The business and operations of the Company are subject to the regulatory oversight of the Federal Reserve Board. The Division also retains supervisory jurisdiction over the Company.
Organization of the Company and Basis of Presentation - Basis of Accounting	The accompanying audited consolidated financial statements and notes thereto have been prepared in accordance with U.S. Generally Accepted Accounting Principles ("GAAP") and the instructions for SEC Form 10-K through the rules and interpretive releases of the SEC under federal securities law. In the opinion of management, the accompanying audited consolidated financial statements reflect all necessary adjustments consisting of normal recurring accruals for a fair presentation. All significant intercompany balances and transactions have been eliminated in the accompanying consolidated financial statements.
Organization of the Company and Basis of Presentation - Reclassifications	Certain previous years' amounts in the consolidated financial statements, and notes thereto, have been reclassified to conform to the current year's presentation.
Organization of the Company and Basis of Presentation - Subsequent Events	The Company has evaluated subsequent events and transactions from December 31, 2021, through the filing date of this Annual Report on Form 10-K with the SEC for potential recognition or disclosure as required by GAAP and determined that there were no material subsequent events requiring recognition or disclosure.
Uses of Estimates	Uses of EstimatesIn preparing the consolidated financial statements in conformity with GAAP, management is required to exercise judgment in determining many of the methodologies, assumptions and estimates to be utilized. These assumptions and estimates affect the reported values of assets and liabilities as of the balance sheet dates and income and expenses for the years then ended. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates should the assumptions and estimates used be incorrect or change over time due to changes in circumstances. Changes in those estimates resulting from continuing changes in the economic environment and other factors will be reflected in the consolidated financial statements and results of operations in future periods. The three most significant areas in which management applies critical assumptions and estimates are the estimates of the allowance for credit losses for loans and available for sale securities, and the impairment review of goodwill, which are each discussed below.
Cash and Cash Equivalents	Cash and Cash EquivalentsCash equivalents are defined as highly liquid investments with original maturities of three months or less, that are readily convertible to known amounts of cash and present insignificant risk of changes in value due to changes in interest rates. The Company's cash and cash equivalents may be comprised of cash on hand and cash items due from banks, interest-earning deposits with banks (deposit accounts, excess reserve cash balances, money markets, and money market mutual fund accounts) and overnight and term federal funds ("fed funds") sold to money center banks. Balances in cash and cash equivalents will fluctuate due primarily to the timing of net cash flows from deposits, borrowings, loans and investments, and the immediate liquidity needs of the Company.
Restricted Cash and Investments	Restricted Cash and Investments Certain of the Company's derivative agreements contain provisions for collateral to be posted if the derivative exposure exceeds a threshold amount. When the Company has pledged cash as collateral in relation to certain derivatives, the cash is carried as restricted cash within "Interest-earning deposits with banks." See Note 9, "Derivatives and Hedging Activities," to the Company's consolidated financial statements of this Form 10-K below for more information about the Company's collateral related to its derivatives. As a member of the FHLB, the Company is required to purchase certain levels of FHLB capital stock at par value in association with outstanding advances from the FHLB. From time-to-time, the FHLB may initiate the repurchase, at par value, of "excess" levels of its capital stock held by member banks. This stock is classified as a restricted investment and is carried at cost, which management believes approximates fair value. FHLB stock represents the only restricted investment held by the Company.
Investment Securities	Investment Securities Investments in debt securities that are intended to be held for indefinite periods of time, but which may not be held to maturity or on a long-term basis are considered to be "available-for-sale" and are carried at fair value. Included as available-for-sale are debt securities that are purchased in connection with the Company's asset-liability risk management strategy and that may be sold in response to changes in interest rates, prepayment risk and other related factors. In instances where the Company has the positive intent to hold debt securities to maturity, these securities will be classified as held-to-maturity and carried at amortized cost. As of the balance sheet dates, all the Company's debt securities were classified as available-for-sale and carried at fair value. Net unrealized appreciation and depreciation on debt securities available-for-sale, net of applicable income taxes, are recorded in the Company's Consolidated Statement of Comprehensive Income as a component of "Accumulated other comprehensive (loss) income". The net unrealized gain or loss in the Company's debt security portfolio fluctuates as market interest rates rise and fall. Due to the fixed rate nature of this portfolio, as market rates fall, the value of the portfolio rises, and as market rates rise, the value of the portfolio declines. The unrealized gains or losses on debt securities will also decline as the securities approach maturity. The Company's equity securities are carried at fair value with changes in fair value recognized in the Company's Consolidated Income Statement as a component of "Other income." The net gains and losses on equity securities that will be recognized as a component of "Other income" in the future will depend on the amount of dollars invested in equities, the magnitude of changes in equity markets and the amount of gains or losses realized through equity sales. Investment securities' discounts are accreted and premiums are amortized over the period of estimated principal repayment using methods that approximate the interest method. Gains or losses on the sale of investment securities are recognized on the trade date on a specific identification basis. ACL for Available-for-Sale Securities The Company measures expected credit losses on available-for-sale securities based upon the unrealized gain or loss position of the security. For available-for-sale debt securities in an unrealized loss position, the Company evaluates qualitative criteria to determine any expected loss unless the Company intends to sell, or it is more likely than not that the Company will be required to sell before recovery of the amortized cost. In the latter two circumstances, the Company recognizes the entire difference between the security’s amortized cost basis and its fair value as a write-down of the investment balance with a charge to earnings. Otherwise, management’s analysis considers various factors, which include among other considerations (1) the present value of the cash flows expected to be collected compared to the amortized cost of the security, (2) duration and magnitude of the decline in value, (3) the financial condition of the issuer or issuers, and (4) structure of the security. If the Company does not expect to recover the entire amortized cost basis of the security, an allowance for credit losses for available-for-sale securities would be recorded, with a related charge to earnings, limited by the difference of the amortized cost of the security to its fair value. The Company has elected to exclude accrued interest from the measurement of the allowance for credit losses for available-for-sale debt securities and to continue to write-off uncollectible accrued interest receivable by reversing interest income. At December 31, 2021, management performed its quarterly analysis of all securities with unrealized losses and determined that all were attributable to increases in market yields. Management concluded that no ACL for available-for-sale securities was considered necessary as of December 31, 2021.
Loans Held for Sale	Loans Held for SaleDepending on the current interest-rate environment, management projections of future interest rates and the overall asset-liability management program of the Company, management may elect to sell those fixed and adjustable rate residential mortgage loans which are eligible for sale in the secondary market or hold some or all of this residential loan production for the Company's portfolio. Mortgage loans are generally not pooled for sale, but instead sold on an individual basis. Enterprise may retain or sell the servicing when selling the loans. Loans sold are subject to standard secondary market underwriting and eligibility representations and warranties over the life of the loan and are subject to an early payment default period covering the first four payments for certain loan sales. Loans held for sale are carried at the lower of aggregate amortized cost or fair value on a separate line on the balance sheet. Fair value is based on comparable market prices for loans with similar rates and terms. When loans are sold, a gain or loss is recognized to the extent that the sales proceeds plus unamortized fees and costs exceed, or are less than, the carrying value of the loans. Gains and losses are determined using the specific identification method.
Loans	Loans Loans made by the Company to businesses, non-profits and professional practices include commercial real estate mortgage loans, construction and land development loans, secured and unsecured commercial loans and lines of credit, and letters of credit. Loans made to individuals include conventional residential mortgage loans, home equity loans and lines, residential construction loans on owner-occupied primary and secondary residences, and secured and unsecured personal loans and lines of credit. Most loans granted by the Company are collateralized by real estate, equipment, or receivables and/or are guaranteed by the principals of the borrower. The ability and willingness of borrowers to honor their repayment commitments is generally dependent on the health of the real estate sector in the borrowers' geographic areas and the general economy, among other factors. Loans are reported at the principal amount outstanding, net of deferred origination fees and costs. The aggregate amounts of overdrawn deposit accounts are reclassified as loan balances. Loan origination fees received, offset by direct loan origination costs, are deferred and amortized using the straight-line method over three years to five years for lines of credit and demand notes or over the life of the related loans using the level-yield method for all other types of loans. When loans are paid off, the unamortized fees and costs are recognized as an adjustment to interest income. From time to time, the Company participates with other banks in the financing of certain commercial projects. In each case in which the Company participates in a loan, the rights and obligations of each participating bank are divided proportionately among the participating banks in an amount equal to their share of ownership and with equal priority among all banks. Each participation is governed by individual participation agreements executed by the lead bank and the participants at loan origination. When the participation qualifies as a sale under GAAP, the balances participated out to other institutions are not carried as assets on the Company's consolidated financial statements. The Company performs an independent credit analysis of each commitment and a review of the participating institution prior to participation in the loan, and an annual review thereafter of each participating institution. Loans originated by other banks in which the Company is the participating institution are carried in the loan portfolio at the Company's pro rata share of ownership. Participating loans with other institutions provide banks the opportunity to retain customer relationships and reduce credit risk exposure among each participating bank, while providing customers with larger credit vehicles than the individual bank might be willing or able to offer independently. The Company seeks to lessen its credit risk exposure by managing its loan portfolio to avoid concentration by industry, relationship size and source of repayment, and through sound underwriting practices and the credit risk management function; however, management recognizes that credit losses will occur and that the amount of these losses will fluctuate depending on the risk characteristics of the loan portfolio and economic conditions. The Company's loan risk rating system classifies loans depending on risk of loss characteristics. The classifications range from "substantially risk free" for the highest quality loans and loans that are secured by cash collateral, through a satisfactory range of "minimal," "moderate," "better than average," and "average" risk, all of which are considered "pass" rated credits. The adverse classifications range from "special mention," for loans that may need additional monitoring, to the more severe classifications of "substandard," "doubtful," and "loss" based on criteria established under banking regulations. Loans which are evaluated to be of weaker credit quality are classified as adverse and placed on the "watch asset list" and reviewed on a more frequent basis by management. Loans classified as "substandard" include those characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected. Loans classified as "doubtful" have all the weaknesses inherent in a substandard rated loan with the added characteristic that the weaknesses make collection or full payment from liquidation, based on existing facts, conditions, and values, highly questionable and improbable. Loans classified as "loss" are generally considered uncollectible at present, although long term recovery of part or all of loan proceeds may be possible. These "loss" loans would require a specific loss reserve or charge-off. Adversely classified loans may be accruing or in non-accrual status and may be additionally designated as impaired or restructured, or some combination thereof. Loans on which the accrual of interest has been discontinued are designated as non-accrual loans and the classified portions are credit downgraded to one of the adversely classified categories noted above. Accrual of interest on loans is generally discontinued when a loan becomes contractually past due, with respect to interest or principal, by 90 days, or when reasonable doubt exists as to the full and timely collection of interest or principal. When a loan is placed on non-accrual status, all interest previously accrued but not collected is reversed against current period interest income. Interest accruals are resumed on such loans only when payments are brought current and have remained current for a period of 180 days or when, in the judgment of management, the collectability of both principal and interest is reasonably assured. Interest payments received on loans in a non-accrual status are generally applied to principal on the books of the Company. Loans individually evaluated consist primarily of loans for which management considers it probable that not all amounts due (principals and interest) will be collected in accordance with the original contractual terms and loans designated as TDRs and to a lesser extent, if applicable, loans that management deems as individually significant or with unique risk characteristics or for some other reason based on management’s judgement. Management considers the individual payment status, net worth and earnings potential of the borrower, and the value and cash flow of the collateral as factors to determine if a loan will be paid in accordance with its contractual terms. Management estimates the credit loss by comparing the loan's carrying value against either (i) the present value of the expected future cash flows discounted at the loan's effective interest-rate; (ii) the loan's observable market price; or (iii) the expected realizable fair value of the collateral, in the case of collateral dependent loans. A specific allowance is assigned to the loan for the amount of estimated credit loss. Individually evaluated loans are charged-off, in whole or in part, when management believes that the recorded investment in the loan is uncollectible. Management does not set any minimum delay of payments as a factor in reviewing for individual evaluation. Management considers the individual payment status, net worth and earnings potential of the borrower, and the value and cash flow of the collateral as factors to determine if a loan will be paid in accordance with its contractual terms. Loans are designated as a TDR when, as part of an agreement to modify the original contractual terms of the loan as a result of financial difficulties of the borrower, the Bank grants the borrower a concession on the terms that would not otherwise be considered. Typically, such concessions may consist of one or a combination of the following: a reduction in interest rate to a below market rate, taking into account the credit quality of the note, extension of additional credit based on receipt of adequate collateral, or a deferment or reduction of payments (principal or interest), which materially alters the Bank's position or significantly extends the note's maturity date, such that the present value of cash flows to be received is materially less than those contractually established at the loan’s origination. All loans that are modified are reviewed by the Company to identify if a TDR has occurred. TDR loans are included in the individually evaluated loan category and as such, these loans are individually reviewed and evaluated for specific reserves. Section 4013 of the CARES Act, as amended by the Consolidated Appropriations Act 2021, provides financial institutions the option to suspend the application of GAAP to any loan modification related to COVID-19 from treatment as a TDR for the period between March 1, 2020 and the earlier of (i) 60 days after the end of the national emergency proclamation or (ii) January 1, 2022. A financial institution may elect to suspend GAAP only for a loan that was not more than 30 days past due as of December 31, 2019. In addition, the temporary suspension of GAAP does not apply to any adverse impact on the credit of a borrower that is not related to the COVID-19 pandemic. The suspension of GAAP is applicable for the entire term of the modification, including an interest-rate modification, a forbearance agreement, a repayment plan, or other agreement that defers or delays the payment of principal and/or interest. Accordingly, a financial institution that elects to suspend GAAP pursuant to the CARES Act is not required to increase its reported TDRs at the end of the period of relief, unless the loans require further modification after the expiration of that period. In accordance with the provision of the CARES Act and subsequent extension by the Consolidated Appropriations Act, 2021, management chose to suspend TDR accounting under GAAP in certain circumstances through December 31, 2021.
ACL for Loans	ACL for Loans On January 1, 2021, the Company adopted ASU 2016-13, including the CECL methodology for estimating the ACL for loans. The CECL methodology requires early recognition of credit losses using a lifetime credit loss measurement approach that also requires the consideration of reasonable and supportable forecasts in the estimate. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost, which for the Company is primarily the loan portfolio. It also applies to off-balance sheet credit exposures such as loan commitments, standby letters of credit, financial guarantees, and other similar instruments, which are not unconditionally cancellable. In addition, this standard made changes to the accounting for available-for-sale debt securities, including the requirement for credit losses be presented as an allowance rather than as a write-down. Additionally, the Company has elected to continue to present the accrued interest receivable balance on loans separate from amortized costs, exclude accrued interest from the measurement of the allowance for credit losses for loans and to continue to write-off uncollectible accrued interest receivable by reversing interest income. Arriving at an appropriate level of ACL for loans involves a high degree of management judgement. The ACL for loans is established through a provision for credit losses, a direct charge to earnings. Credit losses are charged against the ACL for loans when management believes that the collectability of the loan principal is unlikely. Recoveries on loans previously charged-off are credited to the allowance.
Other Real Estate Owned	Other Real Estate Owned Real estate acquired by the Company through foreclosure proceedings or the acceptance of a deed in lieu of foreclosure is classified as other real estate owned ("OREO"). When property is acquired, it is recorded at the estimated fair value of the property acquired, less estimated costs to sell, establishing a new cost basis and carried on the Consolidated Balance Sheet in the line item "Prepaid expenses and other assets." The estimated fair value is based on market appraisals and the Company's internal analysis. Any loan balance more than the estimated realizable fair value on the date of transfer is charged to the allowance for credit losses on that date. All costs incurred thereafter in maintaining the property, as well as subsequent declines in fair value are charged to non-interest expense.
Premises and Equipment	Premises and Equipment Land is carried at cost. All other premises and equipment costs are stated at cost less accumulated depreciation and amortization. Depreciation or amortization is computed on a straight-line basis over the lesser of the estimated useful lives of the asset or the respective lease term (including renewal options reasonably certain to be exercised) for leasehold improvements generally as follows: Bank premises, land improvements, and leasehold improvements 10 to 39 years Computer software and equipment 3 to 5 years Furniture, fixtures, and equipment 3 to 10 years
Leases	Leases Lessees are recognized as right-of-use ("ROU") lease assets and lease liabilities on the balance sheet for all leases with terms longer than 12 months. The lease liability represents the present value of the future lease payments. The ROU asset includes the lease liability, lease prepayments and initial direct costs, less fixed payment lease liabilities. For the Company, leases consist mainly of operating leases on our facilities, mainly branch leases. The Company excludes leases with a term of 12 months or less from the recorded lease liability and ROU asset and accounts for lease and non-lease components (such as common area maintenance) separately. To calculate the lease liability, the Company uses its incremental borrowing rate as the discount rate to determine the net present value of the lease liability. In determining the term of a lease, the Company included option renewal periods that it considered reasonably certain to be exercised. The Company recognizes lease expense on a straight-line basis in the "Occupancy and equipment expenses" line item within the non-interest expense section of the Consolidated Statement of Income.
Bank Owned Life Insurance	Bank Owned Life Insurance The Company has purchased bank-owned life insurance ("BOLI") as an investment vehicle, on certain current and former senior and executive officers, utilizing the earnings on BOLI to offset the cost of the Company's benefit plans. There are no associated surrender charges under the outstanding policies.
Impairment of Long-Lived Assets Other than Goodwill	Impairment of Long-Lived Assets Other than Goodwill The Company reviews long-lived assets, including premises, equipment, and lease right of use assets for impairment on an ongoing basis or whenever events or changes in business circumstances indicate that the remaining useful life may warrant revision or that the carrying amount of the long-lived asset may not be fully recoverable. If impairment is determined to exist, any related impairment loss is recognized through a charge to earnings. Impairment losses on assets disposed of, if any, are based on the estimated proceeds to be received, less cost of disposal.
Goodwill	Goodwill Goodwill is carried on the Company's consolidated financial statements and is related to the Company's acquisition of two branch offices in July 2000. In accordance with GAAP, the Company does not amortize goodwill and instead, at least annually, evaluates whether the carrying value of goodwill has become impaired. A determination that goodwill has become impaired results in an immediate write-down of goodwill to its determined value with a resulting charge to the Company's Consolidated Statement of Income. Goodwill is evaluated at the reporting unit level. In the case of the Company, the services offered through the Bank and subsidiaries are managed as one strategic unit and represent the Company’s only reportable operating segment. The Company has the option to perform either (i) a qualitative assessment of whether it is "more likely than not" that the reporting unit's fair value is less than its book value, or (ii) a quantitative assessment. 1. Management's qualitative assessment would take into consideration, among other items, macroeconomic conditions, industry and market considerations, cost or margin factors, financial performance and share price. Based on the qualitative assessment, if the Company were to conclude: a) it is "more likely than not" that the fair value of a reporting unit exceeds its book value, goodwill is deemed not impaired, or b) it is "more likely than not" that the fair value of a reporting unit is less than its book value, a quantitative goodwill analysis must be performed.
Wealth Assets Under Management and Administration	Wealth Assets Under Management and Administration Wealth assets under management consist of assets managed through Enterprise Wealth Management and Enterprise Wealth Services. Wealth assets under administration consist of 401(k) plans, trust, and custodial accounts. Wealth assets under management and administration are not included in the Consolidated Balance Sheets because they are not assets of the Company.
Derivatives and Hedging	Derivatives and Hedging The Company may enter into derivative financial instruments to add stability to interest expense and to manage its exposure to interest rate movements. These interest rate swaps are designated as cash flow hedges and involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. For derivatives designated and that qualify as cash flow hedges, the gain or loss on the derivative is recorded in Accumulated Other Comprehensive Income ("AOCI"), net of tax and subsequently reclassified into interest income or interest expense in the same period during which the hedged transaction affects earnings. Amounts reported in AOCI related to cash flow hedge derivatives will be reclassified to interest expense as interest is incurred on the Company’s hedge liability or to interest income as interest is earned on the Company's hedge asset. See Note 11, "Comprehensive Income (Loss)," of this Form 10-K for additional information related to the cash flow hedges impact on the Company’s AOCI and Consolidated Statements of Income. The Company may enter into derivative contracts that are intended to economically hedge certain of its risk, even though hedge accounting does not apply, or the Company elects not to apply hedge accounting. Back-to-Back swaps are not speculative; rather, the transactions result from a service the Company provides to certain commercial customers. As a result, the Company has designated its back-to-back swaps as economic hedges which are not subject to hedge accounting. Any changes in the fair value of both the customer swaps and the counterparty swaps, which have an offsetting relationship, are recognized directly in earnings. The Company records all derivatives on the balance sheet at fair value. Asset derivatives are included in the line item "Prepaid expenses and other assets," and liability derivatives are included in the "Accrued expenses and other liabilities" line item on the Consolidated Balance Sheets. In accordance with GAAP, the Company elects to measure the credit risk of its derivative financial instruments that are subject to master netting agreements by derivative type on a net basis by counterparty portfolio. See Note 9, "Derivatives and Hedging Activities," to the Company's consolidated financial statements of this Form 10-K, contained below, for more information about the Company's back-back swaps and cash flow hedges. Interest-rate lock commitments related to the origination of mortgage loans that will be sold are considered derivative instruments. The commitments to sell loans are also considered derivative instruments. The Company generally does not pool mortgage loans for sale, but instead, sells the loans on an individual basis. To reduce the net interest rate exposure arising from its loan sale activity, the Company enters into the commitment to sell these loans at essentially the same time that the interest-rate lock commitment is quoted on the origination of the loan. The Company estimates the fair value of these derivatives based on current secondary mortgage market prices.
Revenue Recognition	Revenue Recognition While the majority of the Company's revenue is generated from contracts with customers, our primary sources of revenue, interest and dividend income (primarily loan interest income), are outside of the scope of ASC 606, "Revenue from Contracts with Customers," and are accounted for under other ASC topics. The core principles of this standard require an entity to recognize revenue to depict the transfer of goods and services to customers as performance obligations are satisfied. The primary areas of income within the scope of ASC 606, wealth management fees and deposit and interchange fees, are components of non-interest income on the Company's Consolidated Statements of Income and are discussed below. Wealth management fees consist of income generated through Enterprise Wealth Management and Enterprise Wealth Services. Enterprise Wealth Management income is primarily generated by managing customers' financial assets. Revenue is recognized as our performance obligation is completed each month. Enterprise Wealth Services revenue is generated through a third-party arrangement to refer, manage and service customers. For new sales and referrals along with transactional type charges, the performance obligation is based on a point in time and the payment is received and revenue is recognized in the same month as the revenue generating activity. For managing and servicing customers, revenue is recognized when our performance obligation is completed each month. Deposit and interchange fees are comprised of deposit account related charges and income generated from electronic payment interchanges. Deposit account charges consist of certain transactional analysis fees net of earning balance credits, monthly account service fees, and transactional fees such as overdraft fees. Analysis and monthly account services fees are recognized over the period the service is performed. For transactional fees, the performance obligation and the revenue are recognized at a point of time and payment is typically received as the service is rendered. Interchange income is generated primarily from retail debit card transactions processed through the card payment network. The performance obligation and the revenue are recognized when the service is performed.
Stock Based Compensation	Stock-Based Compensation The Company's consolidated financial statements include stock-based compensation expense for the portion of stock option awards and stock awards for which the requisite service has been rendered during the period or the estimate of achieving certain predefined performance objectives. The compensation expense has been recorded based on the estimated grant-date fair value of the stock option awards with no adjustment for estimated forfeitures, or in the case of stock awards, the market value of the common stock on the date of grant. Expense adjustments are made for actual forfeitures as they occur. The Company will recognize the remaining estimated compensation expense for the portion of outstanding awards and compensation expense for any future awards, net of actual forfeitures, as the requisite service is rendered (i.e., on a straight-line basis over the remaining vesting period of each award) or as performance objectives are met. Stock awards that do not require future service ("vested awards") will be expensed immediately. Stock-based compensation also includes director stock compensation for stock awards and stock in lieu of cash fees, both included in other operating expenses.
Income Taxes	Income Taxes The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and various states, within the directives of the respective enacted tax legislation. The Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the future tax expense or benefit attributable to differences between the financial statement carrying amounts and the tax basis of assets and liabilities. The deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities will be adjusted accordingly through the provision for income taxes in the period that includes the enactment date. The Company's policy is to classify interest resulting from underpayment of income taxes as income tax expense in the first period the interest would begin accruing according to the provisions of the relevant tax law. The Company classifies penalties resulting from underpayment of income taxes as income tax expense in the period for which the Company claims or expects to claim an uncertain tax position or in the period in which the Company's judgment changes regarding an uncertain tax position. The income tax provisions will differ from the expense that would result from applying the federal statutory rate to income before taxes, due primarily to the impact of state tax expense, tax-exempt interest from certain investment securities, loans and BOLI and the tax impact from equity compensation activity.
Earnings Per Share	Earnings per Share Basic earnings per share are calculated by dividing net income available to common shareholders by the weighted average number of common shares outstanding (including participating securities) during the year. The Company's only participating securities are unvested restricted stock awards that contain non-forfeitable rights to dividends. Diluted earnings per share reflects the effect on weighted average shares outstanding of the number of additional shares outstanding if dilutive stock options were converted into common stock using the treasury stock method.
Reporting Comprehensive Income	Reporting Comprehensive Income Comprehensive income is defined as all changes to shareholders' equity except investments by and distributions to shareholders. Net income is one component of comprehensive income, with other components referred to in the aggregate as other comprehensive income. The Company's other comprehensive income components are the changes in fair value of debt securities, net of deferred income taxes, and for derivatives designated and that qualify as cash flow hedges of interest rate risk, the changes in fair value of cash flow hedges, net of income taxes. Pursuant to GAAP, the Company initially excludes the unrealized holding gains and losses from net income; however, they are later reported as reclassifications out of accumulated other comprehensive income into net income when circumstances warrant. When debt securities are sold, the reclassification of realized gains and losses on available-for-sale securities are included on the Consolidated Statements of Income under the "Non-interest income" subheading on the line item "Net gains (losses) on sales of available-for-sale debt securities" and the related income tax expense is included in the line item "Provision for income taxes," both of which are also detailed in Note 11, "Comprehensive Income (Loss)," of this Form 10-K. For cash flow hedges of interest rate risk, the change in fair value will be reclassified in the same period during which the hedged transaction affects earnings, to either interest expense as interest is incurred on the Company's hedge liability, or to interest income as interest is earned on the Company's hedge asset. The reclassification of gain or loss on the derivatives are included on the Consolidated Statements of Income under "Interest income" or "Interest expense" line item and the related income tax expense is included in the line item "Provision for income taxes," both of which are also detailed in Note 11, "Comprehensive Income (Loss)," of this Form 10-K. See Note 11, "Comprehensive Income (Loss)," of this Form 10-K for additional information related to the reconciliation of changes in the components of other comprehensive income / loss and accumulated other comprehensive income / loss. (v) Other Accounting Policies The CARES Act allows certain financial institutions the option to delay the adoption CECL during the period beginning on March 27, 2020 until the earlier of (i) the date on which the national emergency concerning the COVID-19 pandemic ("pandemic") declared under the National Emergencies Act terminates; or (i) December 31, 2020. The Consolidated Appropriations Act, which was signed into law on December 27, 2020, extended the period during which companies may delay the implementation of CECL until the earlier of (i) the first day of the fiscal year that begins after the national emergency termination date or (ii) January 1, 2022. In the first quarter of 2020, the Company elected to delay the adoption of CECL. See Item (w) "Recent Accounting Pronouncements," under the subheading "Accounting pronouncements not yet adopted by the Company," below in this Note 1 for additional information on the Company’s adoption of CECL. In addition, Section 4013 of the CARES Act provides the option for financial institutions to suspend troubled debt restructuring ("TDR") accounting under GAAP in certain circumstances, during the period beginning March 1, 2020 and ending on the earlier of (i) January 1, 2022 (as amended by the Consolidated Appropriations Act of 2021); or (ii) the date that is 60 days after the date on which the national emergency concerning the pandemic declared under the National Emergencies Act terminates. The Company suspended TDR accounting, which primarily impacted financial statement disclosure, for loans that had a short-term payment deferral related to the pandemic from March 1, 2020 through December 31, 2021.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In August 2021, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU 2021-06"), Presentation of Financial Statements (Topic 205), Financial Services—Depository and Lending (Topic 942), and Financial Services—Investment Companies (Topic 946). This ASU incorporates recent SEC rule changes into the FASB Codification, including SEC Final Rule Releases No. 33-10786, Amendments to Financial Disclosures about Acquired and Disposed Businesses, and No. 33-10835, Update of Statistical Disclosures for Bank and Savings and Loan Registrants. The rules reduce the required reporting periods to align them with the relevant financial statement periods required by SEC rules and requires certain statistical disclosures for annual periods, and interim disclosures if a material change in the information, or trend, has occurred. The amendments in this update are effective upon addition to the FASB Codification and apply to fiscal years ending on or after December 15, 2021. However, voluntary early compliance is permitted upon the effective date, provided that the rules are applied in their entirety. The amended disclosures did not have a material impact on the consolidated financial statements. Effective January 1, 2021, the Company adopted the FASB ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ("ASU No. 2016-13"), including the CECL methodology for estimating allowances for credit losses ("ACL"). The CECL methodology requires early recognition of credit losses using a lifetime credit loss measurement approach that also requires the consideration of reasonable and supportable forecasts in the estimate. The measurement of expected credit losses under the CECL methodology is applicable to financial assets measured at amortized cost. It applies to the loan portfolio, off-balance sheet credit exposures such as loan commitments, standby letters of credit, financial guarantees, and other similar instruments, which are not unconditionally cancellable. In addition, this standard made changes to the accounting for available-for-sale debt securities, including the requirement for credit losses be presented as an allowance rather than as a write-down. See the following footnotes for more information on the Company's adoption of CECL: Note 2, "Investment Securities," Note 3, "Loans," and Note 4, "Allowance for Credit Losses for Loans." In February 2019, the federal bank regulatory agencies issued a final rule (the "2019 CECL Rule") that revised certain capital regulations to account for changes to credit loss accounting under GAAP. The 2019 CECL Rule included a transition option that allows banking organizations to phase in, over a three-year period, the day-one adverse effects of adopting the new accounting standard related to the measurement of current expected credit losses on their regulatory capital ratios (three-year transition option). Upon the adoption of CECL on January 1, 2021, the Company has not elected to delay the impact of CECL on regulatory capital.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Property, Plant and Equipment, Useful Lives	Depreciation or amortization is computed on a straight-line basis over the lesser of the estimated useful lives of the asset or the respective lease term (including renewal options reasonably certain to be exercised) for leasehold improvements generally as follows: Bank premises, land improvements, and leasehold improvements 10 to 39 years Computer software and equipment 3 to 5 years Furniture, fixtures, and equipment 3 to 10 years

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Schedule of Debt Securities, Available-for-Sale, Investments Reconciliation	The amortized cost and fair values of debt securities at the dates specified are summarized as follows: 2021 (Dollars in thousands) Amortized Unrealized Unrealized Fair Value U.S. treasury securities $ 62,850 $ — $ 684 $ 62,166 Residential federal agency MBS (1) 412,902 2,406 9,113 406,195 Commercial federal agency MBS (1) 99,681 3,783 52 103,412 Taxable municipal securities 272,507 5,607 2,264 275,850 Tax-exempt municipal securities 87,024 5,648 — 92,672 Corporate bonds 8,559 441 — 9,000 Subordinated corporate bonds 7,000 135 — 7,135 Total debt securities, at fair value $ 950,523 $ 18,020 $ 12,113 $ 956,430 2020 (Dollars in thousands) Amortized Unrealized Unrealized Fair Value Residential federal agency MBS (1) $ 209,923 $ 6,339 $ 287 $ 215,975 Commercial federal agency MBS (1) 102,468 7,726 — 110,194 Taxable municipal securities 135,117 9,293 3 144,407 Tax-exempt municipal securities 88,235 7,216 — 95,451 Corporate bonds 10,448 828 — 11,276 Subordinated corporate bonds 5,000 — — 5,000 Total debt securities, at fair value $ 551,191 $ 31,402 $ 290 $ 582,303 __________________________________________
Schedule of Unrealized Loss on Debt Securities, Available-for-Sale Investments	The following tables summarize the duration of unrealized losses for debt securities at December 31, 2021 and 2020: 2021 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Unrealized Fair Unrealized Fair Unrealized # of Holdings U.S. treasury securities $ 62,166 $ 684 $ — $ — $ 62,166 $ 684 9 Residential federal agency MBS 272,863 6,992 51,281 2,121 324,144 9,113 44 Commercial federal agency MBS 4,897 52 — — 4,897 52 1 Taxable municipal securities 117,388 2,023 6,727 241 124,115 2,264 118 Total temporarily impaired debt securities $ 457,314 $ 9,751 $ 58,008 $ 2,362 $ 515,322 $ 12,113 172 2020 Less than 12 months 12 months or longer Total (Dollars in thousands) Fair Unrealized Fair Unrealized Fair Unrealized # of Holdings Residential federal agency MBS $ 51,396 $ 284 $ 2,107 $ 3 $ 53,503 $ 287 10 Taxable municipal securities 1,997 3 — — 1,997 3 4 Total temporarily impaired debt securities $ 53,393 $ 287 $ 2,107 $ 3 $ 55,500 $ 290 14
Debt Securities, Available-for-Sale Investments Classified by Contractual Maturity Date	The contractual maturity distribution at December 31, 2021 of debt securities was as follows: (Dollars in thousands) Amortized Cost Fair Value Due in one year or less $ 13,398 $ 13,478 Due after one, but within five years 189,626 195,778 Due after five, but within ten years 271,354 276,528 Due after ten years 476,145 470,646 Total debt securities $ 950,523 $ 956,430
Schedule of Realized Gain (Loss) on Sales of Debt Securities, Available-for-Sale Investments	Sales of debt securities, for the years ended December 31, 2021, 2020, and 2019 are summarized as follows: (Dollars in thousands) 2021 2020 2019 Amortized cost of debt securities sold (1) $ 2,931 $ 5,680 $ 11,621 Gross realized gains on sales 128 227 149 Gross realized losses on sales — — (3) Total proceeds from sales of debt securities $ 3,059 $ 5,907 $ 11,767 __________________________________________ (1) Amortized cost of investments sold is determined on a specific identification basis and includes pending trades based on trade date, if applicable.
Gain (Loss) on Equity Securities	Gains and losses on equity securities at December 31, 2021 and December 31, 2020 are summarized as follows: (Dollars in thousands) 2021 2020 Net (losses) gains recognized during the period on equity securities $ 246 $ (49) Less: Net (losses) gains realized on equity securities sold during the period 57 (11) Unrealized gains (losses) recognized during the reporting period on equity securities still held at the end of the period (included in other income) $ 189 $ (38)

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Schedule of Loans by Loan Classification	Major classifications of loans at amortized cost at the periods indicated were as follows (1) : (Dollars in thousands) December 31, 2021 December 31, 2020 Commercial real estate $ 1,680,792 $ 1,476,236 Commercial and industrial 412,070 435,548 Commercial construction 410,443 371,856 SBA Paycheck Protection Program ("PPP") 71,502 443,070 Total commercial loans 2,574,807 2,726,710 Residential mortgages 256,940 252,995 Home equity loans and lines 80,467 85,178 Consumer 8,470 8,977 Total retail loans 345,877 347,150 Total loans 2,920,684 3,073,860 Allowance for credit losses (47,704) (44,565) Net loans $ 2,872,980 $ 3,029,295 __________________________________________ (1) Upon the adoption of CECL, the Company includes deferred fees as part of the portfolio segment balance at amortized cost. The prior period balances have been adjusted to conform to this presentation.
Schedule of Loans Pledged as Collateral	Loans designated as qualified collateral and pledged to the FHLB for borrowing capacity for the periods indicated are summarized below: (Dollars in thousands) December 31, 2021 December 31, 2020 Commercial real estate $ 143,056 $ 195,936 Residential mortgages 235,744 233,050 Home equity 5,055 5,971 Total loans pledged to FHLB $ 383,855 $ 434,957

ACL for Loans (Tables)

ACL for Loans (Tables)	12 Months Ended
	Dec. 31, 2021
Receivables [Abstract]
Financing Receivable Credit Quality Indicators	The following tables presents the amortized cost basis of the Company's loan portfolio risk ratings within portfolio classifications, by origination date, or revolving status as of December 31, 2021: Term Loans By Origination Year (Dollars in thousands) 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Loans Converted to Term Total Commercial real estate Pass $ 402,838 $ 220,942 $ 239,248 $ 120,286 $ 173,652 $ 479,298 $ 3,019 $ — $ 1,639,283 Special mention — — 989 802 — 7,626 — — 9,417 Substandard — — 2,628 3,111 12,842 13,336 — — 31,917 Doubtful — — — 175 — — — — 175 Total commercial real estate 402,838 220,942 242,865 124,374 186,494 500,260 3,019 — 1,680,792 Commercial and industrial Pass 64,555 40,333 36,177 19,754 14,983 44,835 174,320 1,243 396,200 Special mention — 644 2,173 958 59 1,431 4,053 18 9,336 Substandard — — 15 100 25 3,845 2,440 109 6,534 Total commercial and industrial 64,555 40,977 38,365 20,812 15,067 50,111 180,813 1,370 412,070 Commercial construction Pass 175,069 106,165 54,907 24,343 4,561 19,489 24,864 — 409,398 Substandard — — — — — — — 1,045 1,045 Total commercial construction 175,069 106,165 54,907 24,343 4,561 19,489 24,864 1,045 410,443 SBA PPP (1) 66,232 5,270 — — — — — — 71,502 Residential mortgages Pass 79,130 56,948 27,343 22,743 12,886 55,571 — — 254,621 Special mention — — — — — 590 — — 590 Substandard — — — — — 1,729 — — 1,729 Total residential mortgages 79,130 56,948 27,343 22,743 12,886 57,890 — — 256,940 Home equity Pass 486 478 498 — — 1,727 76,619 414 80,222 Substandard — — — — — 245 — — 245 Total home equity 486 478 498 — — 1,972 76,619 414 80,467 Consumer Pass 2,843 1,498 1,619 1,005 617 390 — 473 8,445 Doubtful 25 — — — — — — — 25 Total consumer 2,868 1,498 1,619 1,005 617 390 — 473 8,470 Total loans $ 791,178 $ 432,278 $ 365,597 $ 193,277 $ 219,625 $ 630,112 $ 285,315 $ 3,302 $ 2,920,684 ____________________________ (1) All SBA PPP loans were pass-rated at December 31, 2021, as these loans are fully guaranteed by the SBA. The following tables present the Company's credit risk profile for each portfolio classification by internally assigned adverse risk rating category as of the periods indicated: December 31, 2020 (Dollars in thousands) Adversely Classified (1) Not Adversely Classified Gross Loans Substandard Doubtful Loss Commercial real estate $ 40,088 $ 197 $ — $ 1,437,950 $ 1,478,235 Commercial and industrial 7,901 2,293 — 425,466 435,660 Commercial construction 3,501 — — 369,808 373,309 SBA paycheck protection program — — — 453,084 453,084 Residential mortgages 474 — — 252,497 252,971 Home equity 381 — — 84,625 85,006 Consumer 41 — — 8,940 8,981 Total gross loans $ 52,386 $ 2,490 $ — $ 3,032,370 $ 3,087,246 __________________________________ (1) Prior to the adoption of CECL, the Company did not include special-mention risk rated loans as adversely classified.
Past Due Financing Receivables	The following table presents an age analysis of past due loans by portfolio classification as of the date indicated: Balance at December 31, 2021 (Dollars in thousands) 30-59 Days 60-89 Days Past Due 90 Days or More Total Past Due Loans (1) Current Loans (1) Total Commercial real estate $ 1,917 $ — $ 1,719 $ 3,636 $ 1,677,156 $ 1,680,792 Commercial and industrial 564 678 194 1,436 410,634 412,070 Commercial construction — — — — 410,443 410,443 SBA PPP 162 19 — 181 71,321 71,502 Residential mortgages 182 — 432 614 256,326 256,940 Home equity 45 — — 45 80,422 80,467 Consumer 7 27 — 34 8,436 8,470 Total loans $ 2,877 $ 724 $ 2,345 $ 5,946 $ 2,914,738 $ 2,920,684 _______________________________________ (1) The loan balances in the table above include loans designated as non-accrual despite their payment due status. The following tables present an age analysis of past due loans by portfolio classification as of the dates indicated: Balance at December 31, 2020 (Dollars in thousands) Past Due Past Due Past Due 90 Days or More Total Past Due Loans Current Loans Gross Loans Non-accrual Loans Commercial real estate $ 6,105 $ 499 $ 5,592 $ 12,196 $ 1,466,039 $ 1,478,235 $ 29,680 Commercial and industrial 417 13 607 1,037 434,623 435,660 4,574 Commercial construction 13,466 — 1,351 14,817 358,492 373,309 2,999 SBA paycheck protection program — — — — 453,084 453,084 — Residential mortgages 890 — 290 1,180 251,791 252,971 414 Home equity — — 255 255 84,751 85,006 381 Consumer 2 1 — 3 8,978 8,981 2 Total gross loans $ 20,880 $ 513 $ 8,095 $ 29,488 $ 3,057,758 $ 3,087,246 $ 38,050
Financing Receivable, Nonaccrual	The following table presents the amortized cost of non-accrual loans by portfolio classification as of the date indicated: Balance at December 31, 2021 (Dollars in thousands) Total Non-accrual Loans Non-accrual Loans without a Specific Reserve Non-accrual Loans with a Specific Reserve Related Specific Commercial real estate $ 22,870 $ 7,144 $ 15,726 $ 896 Commercial and industrial 1,542 1,337 205 185 Commercial construction 1,045 1,045 — — SBA PPP — — — — Residential mortgages 794 633 161 161 Home equity 246 246 — — Consumer 25 — 25 25 Total loans $ 26,522 $ 10,405 $ 16,117 $ 1,267
Schedule of Interest Lost on Nonaccrual Loans	The reduction in interest income for the years ended December 31, associated with non-accruing loans is summarized as follows: (Dollars in thousands) 2021 2020 2019 Income that would have been recognized if non-accrual loans had been current $ 2,028 $ 1,946 $ 1,893 Less income recognized 633 472 244 Reduction in interest income $ 1,395 $ 1,474 $ 1,649
Impaired Financing Receivables	The following table presents the recorded investment in collateral dependent individually evaluated loans and the related specific allowance by portfolio allocation as of the date indicated: Balance at December 31, 2021 (Dollars in thousands) Unpaid Total Recorded Recorded Recorded Related Specific Commercial real estate $ 29,562 $ 27,617 $ 11,891 $ 15,726 $ 896 Commercial and industrial 8,880 4,699 4,191 508 128 Commercial construction 1,181 1,045 1,045 — — SBA PPP — — — — — Residential mortgages 1,165 1,033 1,033 — — Home equity 347 246 246 — — Consumer — — — — — Total $ 41,135 $ 34,640 $ 18,406 $ 16,234 $ 1,024 The following tables set forth the recorded investment in impaired loans and the related specific allowance allocated by portfolio classification as of the dates indicated: Balance at December 31, 2020 (Dollars in thousands) Unpaid Contractual Principal Balance Total Recorded Investment in Impaired Loans Recorded Investment with no Allowance Recorded Investment with Allowance Related Specific Allowance Commercial real estate $ 37,184 $ 35,915 $ 14,728 $ 21,187 $ 3,454 Commercial and industrial 10,628 8,409 4,696 3,713 2,713 Commercial construction 3,668 2,999 2,999 — — SBA paycheck protection program — — — — — Residential mortgages 699 596 596 — — Home equity 539 381 381 — — Consumer 18 18 — 18 18 Total $ 52,736 $ 48,318 $ 23,400 $ 24,918 $ 6,185 The following table presents the average recorded investment in impaired loans by portfolio classification and the related interest recognized during the twelve months indicated: Year ended December 31, 2020 Year ended December 31, 2019 (Dollars in thousands) Average Recorded Interest Income Average Recorded Interest Income Commercial real estate $ 19,606 $ 138 $ 17,033 $ 509 Commercial and industrial 8,639 168 11,135 385 Commercial construction 5,991 22 2,158 81 SBA PPP — — Residential mortgages 854 8 1,024 18 Home equity 410 (1) 447 — Consumer 36 2 28 — Total $ 35,536 $ 337 $ 31,825 $ 993
Troubled Debt Restructurings on Financing Receivables	The following table presents the number and balance of loans modified as TDRs, by portfolio classification, during the year indicated: December 31, 2021 (Dollars in thousands) Number of Restructurings Pre-modification Outstanding Recorded Investment Post-modification Outstanding Recorded Investment Commercial real estate 3 $ 3,591 $ 3,267 Commercial and industrial 3 96 85 Commercial construction — — — SBA PPP — — — Residential mortgages 1 224 222 Home equity — — — Consumer — — — Total 7 $ 3,911 $ 3,574 Payment defaults by portfolio classification, during the year indicated, on loans modified as TDRs within the preceding twelve months are detailed below: December 31, 2021 (Dollars in thousands) Number of TDRs that Defaulted Post-modification Outstanding Recorded Investment Commercial real estate 1 $ 663 Commercial and industrial 2 33 Commercial construction — — SBA PPP — — Residential mortgages — — Home equity — — Consumer — — Total 3 $ 696 The following table sets forth the post modification balances of TDRs listed by type of modification for TDRs that occurred during the periods indicated: December 31, 2021 (Dollars in thousands) Number of Amount Extended maturity date 3 $ 71 Temporary payment reduction and payment re-amortization of remaining principal over extended term 2 885 Temporary interest-only payment plan 1 14 Other payment concessions 1 2,604 Total 7 $ 3,574 Allowance for credit losses associated with TDR loans listed above $ 33 The following table presents number and balance of loans modified as TDRs, by portfolio classification, during the twelve months indicated: Year ended December 31, 2020 (Dollars in thousands) Number of Pre-modification Post-modification Commercial real estate 3 $ 1,858 $ 1,838 Commercial and industrial 5 976 344 Commercial construction 6 4,754 2,765 SBA PPP — — — Residential mortgages — — — Home equity 1 167 167 Consumer 1 1 — Total 16 $ 7,756 $ 5,114 The following table presents loans modified as TDRs within the preceding twelve months, which have defaulted on the modified terms during the during the year ended December 31, 2020: Year ended December 31, 2020 (Dollars in thousands) Number of TDRs that Defaulted Post- Commercial real estate 3 $ 1,838 Commercial and industrial 2 172 Commercial construction 4 1,798 SBA PPP — — Residential mortgages — — Home equity 1 168 Consumer — — Total 10 $ 3,976 The following table sets forth the post modification balances of TDRs listed by type of modification for TDRs that occurred during the twelve-month periods indicated: Year ended December 31, 2020 (Dollars in thousands) Number of Amount Extended maturity date 2 $ 150 Temporary payment reduction and payment re-amortization of remaining principal over extended term 10 3,316 Forbearance of post default rights 4 1,648 Total 16 $ 5,114 Amount of specific reserves included in the allowance for loan losses associated with TDRs listed above $ 386
Allowance for Credit Losses on Financing Receivables	Changes in the allowance for credit losses for the years ended December 31, 2021, 2020 and 2019 are summarized as follows: (Dollars in thousands) 2021 2020 2019 Balance at beginning of year $ 44,565 $ 33,614 $ 33,849 CECL adjustment upon adoption 6,560 — — Provision 543 12,499 1,180 Recoveries 363 346 778 Less: Charge-offs 4,327 1,894 2,193 Balance at end of year $ 47,704 $ 44,565 $ 33,614 Changes in the allowance for credit losses by portfolio classification for the year ended December 31, 2021 are presented below: (Dollars in thousands) Commercial Real Estate Commercial and Industrial Commercial Construction Residential Mortgage Home Equity Consumer Total Beginning Balance $ 26,755 $ 9,516 $ 6,129 $ 1,530 $ 467 $ 168 $ 44,565 CECL adjustment upon adoption 7,664 1,988 (2,416) (695) (158) 177 6,560 Provision (786) 408 272 570 85 (6) 543 Recoveries 39 139 105 — 71 9 363 Less: Charge-offs 1,825 2,477 — — — 25 4,327 Ending Balance $ 31,847 $ 9,574 $ 4,090 $ 1,405 $ 465 $ 323 $ 47,704 Ending allowance balance: Allocated to loans individually evaluated for impairment $ 896 $ 402 $ — $ 161 $ — $ 25 $ 1,484 Allocated to loans collectively evaluated for impairment $ 30,951 $ 9,172 $ 4,090 $ 1,244 $ 465 $ 298 $ 46,220 Changes in the allowance for loan losses by portfolio classification for the year ended December 31, 2020 are presented below: (Dollars in thousands) Commercial Real Commercial and Commercial Construction Residential Home Consumer Total Beginning Balance $ 18,338 $ 9,129 $ 4,149 $ 1,195 $ 536 $ 267 $ 33,614 Provision for loan losses for loans 8,417 683 3,280 335 (114) (102) 12,499 Recoveries — 265 — — 45 36 346 Less: Charge-offs — 561 1,300 — — 33 1,894 Ending Balance $ 26,755 $ 9,516 $ 6,129 $ 1,530 $ 467 $ 168 $ 44,565 Ending allowance balance: Allocated to loans individually evaluated for impairment $ 3,454 $ 2,713 $ — $ — $ — $ 18 $ 6,185 Allocated to loans collectively evaluated for impairment $ 23,301 $ 6,803 $ 6,129 $ 1,530 $ 467 $ 150 $ 38,380
Financing Receivables by Evaluation Method	The balances of loans as of December 31, 2020 by portfolio classification and evaluation method are summarized as follows: (Dollars in thousands) Loans Individually Evaluated for Impairment Loans Collectively Evaluated for Impairment Gross Loans Commercial real estate $ 35,915 $ 1,442,320 $ 1,478,235 Commercial and industrial 8,409 427,251 435,660 Commercial construction 2,999 370,310 373,309 SBA paycheck protection program — 453,084 453,084 Residential mortgages 596 252,375 252,971 Home equity 381 84,625 85,006 Consumer 18 8,963 8,981 Total gross loans $ 48,318 $ 3,038,928 $ 3,087,246

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2021
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and equipment at December 31, 2021, and 2020, are summarized as follows: (Dollars in thousands) 2021 2020 Land and land improvements $ 9,090 $ 9,090 Bank premises and leasehold improvements 53,857 51,312 Computer software and equipment 14,600 13,953 Furniture, fixtures, and equipment 23,734 22,743 Total premises and equipment, before accumulated depreciation 101,281 97,098 Less accumulated depreciation (56,592) (50,390) Total premises and equipment, net of accumulated depreciation $ 44,689 $ 46,708

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Operating Lease Liability Maturity Table as Lessee	At December 31, 2021, the remaining undiscounted cash flows by year of these lease liabilities were as follows: (Dollars in thousands) Operating Leases 2022 $ 1,376 2023 1,403 2024 1,431 2025 1,438 2026 1,449 Thereafter 31,533 Total lease payments $ 38,630 Less: Imputed interest 15,003 Total lease liability $ 23,627

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2021
Deposits:
Schedule of Deposit Liabilities	Deposits at December 31, are summarized as follows: (Dollars in thousands) 2021 2020 Non-interest checking $ 1,364,258 $ 1,164,908 Interest-bearing checking 743,587 599,630 Savings 310,244 256,347 Money market 1,355,701 1,210,414 CDs $250,000 or less 154,403 176,895 CDs greater than $250,000 52,046 68,074 Total customer deposits 3,980,239 3,476,268 Brokered deposits (1) — 74,995 Total deposits $ 3,980,239 $ 3,551,263 __________________________________________ (1) Brokered deposits which are individually $250,000 and under.
Schedule of Maturities of Time Deposits	The following table shows the scheduled maturities of CDs (December 31, 2020 includes brokered CDs with weighted average remaining lives of less than six months): (Dollars in thousands) 2021 2020 Due in less than twelve months $ 154,465 $ 265,833 Due in over one year through two years 43,302 37,908 Due in over two years through three years 6,882 12,305 Due in over three years through four years 1,078 3,365 Due in over four years through five years 491 515 Due in over five years 231 38 Total CDs $ 206,449 $ 319,964

Borrowed Funds and Subordinat_2

Borrowed Funds and Subordinated Debt (Tables)	12 Months Ended
	Dec. 31, 2021
Debt Disclosure [Abstract]
Schedule of Borrowed Funds and Debentures	Borrowed funds and subordinated debt outstanding at December 31, for the years indicated are summarized as follows: 2021 2020 2019 (Dollars in thousands) Amount Average Amount Average Amount Average Borrowed funds $ 5,479 1.07 % $ 4,774 0.30 % $ 96,173 1.86 % Subordinated debt 58,979 5.54 % 73,744 5.69 % 14,872 6.22 % Total borrowed funds and subordinated debt $ 64,458 5.16 % $ 78,518 5.36 % $ 111,045 2.44 %
Schedule of Borrowed Funds Maturity	The contractual maturity distribution as of December 31, 2021, of borrowed funds with the weighted average cost for each category is set forth below: 2021 2020 2019 (Dollars in thousands) Balance Rate Balance Rate Balance Rate Overnight $ — — % $ — — % $ 92,000 1.85 % Within 12 months 2,485 0.29 % 4,316 0.33 % 3,697 2.22 % Over 5 years 2,994 1.70 % 458 — % 476 — %
Schedule of Average Balances and Rates for Borrowed Funds	The following table summarizes the average balance and average cost of borrowed funds for the years indicated: Year ended December 31, 2021 2020 2019 (Dollars in thousands) Average Average Average Average Average Average FHLB advances $ 7,632 0.79 % $ 35,762 1.65 % $ 15,885 2.42 % FRB PPPLF advances — — % 4,703 0.35 % — — % Other borrowings — — % 14 1.07 % 55 2.64 % Total borrowed funds $ 7,632 0.79 % $ 40,479 1.50 % $ 15,940 2.42 %

Derivatives and Hedging Activ_2

Derivatives and Hedging Activities (Tables)	12 Months Ended
	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivatives, Fair Value and Classification	The tables below present a summary of the Company's derivative financial instruments, notional amounts and fair values for the periods presented: As of December 31, 2021 (Dollars in thousands) Asset Notional Amount Asset Derivatives (1)(2) Liability Notional Amount Liability Derivatives (1)(2) Derivatives not subject to hedge accounting Interest-rate contracts - pay floating, receive fixed $ 36,263 $ 528 $ — $ — Interest-rate contracts - pay fixed, receive floating — — 36,263 528 Total back-to-back interest-rate swaps $ 36,263 $ 528 $ 36,263 $ 528 As of December 31, 2020 (Dollars in thousands) Asset Notional Amount Asset Derivatives (1)(2) Liability Notional Amount Liability Derivatives (1)(2) Derivatives designated as hedging instruments Interest-rate contracts - pay fixed, receive floating $ — $ — $ 75,000 $ 2,814 Total cash flow hedge interest-rate swaps $ — $ — $ 75,000 $ 2,814 Derivatives not subject to hedge accounting Interest-rate contracts - pay floating, receive fixed $ 38,027 $ 2,286 $ — $ — Interest-rate contracts - pay fixed, receive floating — — 38,027 2,286 Total back-to-back interest-rate swaps $ 38,027 $ 2,286 $ 38,027 $ 2,286 __________________________________________ (1) Accrued interest balances related to the Company’s interest rate swaps are not included in the fair values above and are immaterial. (2) The assets and liabilities related to the pay fixed, receive floating interest-rate contracts are subject to a master netting agreement and are presented net in the Consolidated Balance Sheet.

Commitments, Contingencies an_2

Commitments, Contingencies and Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk (Tables)	12 Months Ended
	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Schedule of Financial Instruments with Off-Balance Sheet Risk	Financial instruments with off-balance sheet credit risk at December 31, 2021 and 2020 are as follows: (Dollars in thousands) 2021 2020 Commitments to originate loans $ 38,653 $ 22,957 Commitments to originate residential mortgages loans for sale — 3,121 Commitments to sell residential mortgage loans — 3,493 Letters of credit 23,164 28,038 Unadvanced portions of commercial real estate loans 22,035 14,935 Unadvanced portions of commercial loans and lines 565,921 530,525 Unadvanced portions of construction loans (commercial & residential) 325,348 228,309 Unadvanced portions of home equity lines 126,651 118,686 Unadvanced portions of consumer loans 4,263 4,269

Comprehensive Income (Loss) (Ta

Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Comprehensive (Loss) Income	The following table presents a reconciliation of the changes in the components of other comprehensive income (loss) for the dates indicated, including the amount of income tax (expense) benefit allocated to each component of other comprehensive income (loss): Year ended December 31, 2021 Year ended December 31, 2020 (Dollars in thousands) Pre-Tax Tax (Expense) Benefit After Tax Amount Pre-Tax Tax (Expense) Benefit After Tax Amount Change in fair value of debt securities $ (25,077) $ 5,622 $ (19,455) $ 17,841 $ (3,958) $ 13,883 Less: net security gains reclassified into non-interest income 128 (29) 99 227 (50) 177 Net change in fair value of debt securities (25,205) 5,651 (19,554) 17,614 (3,908) 13,706 Change in fair value of cash flow hedges 378 (106) 272 (3,328) 935 (2,393) Less: net cash flow hedges losses reclassified into interest expense (2,436) 685 (1,751) (514) 144 (370) Net change in fair value of cash flow hedges 2,814 (791) 2,023 (2,814) 791 (2,023) Total other comprehensive (loss) income, net $ (22,391) $ 4,860 $ (17,531) $ 14,800 $ (3,117) $ 11,683
Schedule of Accumulated Other Comprehensive Income (Loss)	Information on the Company's accumulated other comprehensive income (loss), net of tax, is comprised of the following components as of the periods indicated: Year ended December 31, 2021 Year ended December 31, 2020 (Dollars in thousands) Unrealized Gains on Debt Securities Unrealized Losses on Cash Flow Hedges Total Unrealized Gains (Losses) on Debt Securities Unrealized Gains (Losses) on Cash Flow Hedges Total Accumulated other comprehensive income - beginning balance $ 24,216 $ (2,023) $ 22,193 $ 10,510 $ — $ 10,510 Total other comprehensive (loss) income, net (19,554) 2,023 (17,531) 13,706 (2,023) 11,683 Accumulated other comprehensive income - ending balance $ 4,662 $ — $ 4,662 $ 24,216 $ (2,023) $ 22,193

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2021
Equity [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	The Company's and the Bank's actual capital amounts and ratios are presented as of December 31, 2021 and December 31, 2020 in the tables below: Actual Minimum Capital for Capital Adequacy Purposes (1) Minimum Capital to be Well-Capitalized (2) (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio As of December 31, 2021 The Company Total Capital to risk-weighted assets ("RWA") $ 435,328 13.73 % $ 253,610 8.00 % N/A N/A Tier 1 Capital to RWA 336,577 10.62 % 190,208 6.00 % N/A N/A Tier 1 Capital to average assets ("AA") or Leverage Ratio 336,577 7.56 % 177,978 4.00 % N/A N/A Common Equity Tier 1 Capital to RWA 336,577 10.62 % 142,656 4.50 % N/A N/A The Bank Total Capital to RWA $ 434,430 13.70 % $ 253,610 8.00 % $ 317,013 10.00 % Tier 1 Capital to RWA 394,658 12.45 % 190,208 6.00 % 253,610 8.00 % Tier 1 Capital to AA, Leverage Ratio 394,658 8.87 % 177,978 4.00 % 222,473 5.00 % Common Equity Tier 1 Capital to RWA 394,658 12.45 % 142,656 4.50 % 206,058 6.50 % Actual Minimum Capital (1) Minimum Capital to be Well-Capitalized (2) (Dollars in thousands) Amount Ratio Amount Ratio Amount Ratio As of December 31, 2020 The Company Total Capital to RWA $ 415,999 14.62 % $ 227,631 8.00 % N/A N/A Tier 1 Capital to RWA 306,577 10.77 % 170,723 6.00 % N/A N/A Tier 1 Capital to AA, Leverage Ratio 306,577 7.52 % 163,127 4.00 % N/A N/A Common Equity Tier 1 Capital to RWA 306,577 10.77 % 128,042 4.50 % N/A N/A The Bank Total Capital to RWA $ 413,862 14.55 % $ 227,631 8.00 % $ 284,538 10.00 % Tier 1 Capital to RWA 378,184 13.29 % 170,723 6.00 % 227,631 8.00 % Tier 1 Capital to AA, Leverage Ratio 378,184 9.27 % 163,127 4.00 % 203,909 5.00 % Common Equity Tier 1 Capital to RWA 378,184 13.29 % 128,042 4.50 % 184,950 6.50 % __________________________________________ (1) Before application of the capital conservation buffer of 2.50% as of December 31, 2021 and December 31, 2020. See discussion below. (2) For the Bank to qualify as "well-capitalized," it must maintain at least the minimum ratios listed under the regulatory prompt corrective action framework. This framework does not apply to the Company.
Schedule of Basel III Minimum Requirements at Full Phase In	The Basel III minimum capital ratio requirements as applicable to the Company and the Bank with the capital conservation buffer are summarized in the table below: Basel III Minimum for Capital Adequacy Purposes Basel III Additional Capital Conservation Buffer Basel III "Adequate" Ratio with Capital Conservation Buffer Total Capital to RWA 8.00% 2.50% 10.50% Tier 1 Capital to RWA 6.00% 2.50% 8.50% Tier 1 Capital to AA, or Leverage Ratio 4.00% N/A 4.00% Common equity tier 1 capital to RWA 4.50% 2.50% 7.00%

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2021
Retirement Benefits [Abstract]
Schedule of Changes in Projected Benefit Obligations	The following table provides a reconciliation of the changes in the supplemental retirement benefit obligation and the net periodic benefit cost for the years ended December 31: (Dollars in thousands) 2021 2020 2019 Reconciliation of benefit obligation: Benefit obligation at beginning of year $ 1,923 $ 2,064 $ 2,174 Net periodic benefit cost: Interest cost 61 61 84 Actuarial loss (gain) — 74 82 Net periodic benefit costs $ 61 $ 135 $ 166 Benefits paid (276) (276) (276) Benefit obligation at end of year $ 1,708 $ 1,923 $ 2,064 Funded status: Accrued liability as of December 31 $ (1,708) $ (1,923) $ (2,064) Discount rate used for benefit obligation (1) 3.25 % 3.25 % 4.00 % __________________________________________ (1) Management utilizes the Moody's 20 year AA corporate bond rates to establish the reasonableness of the discount rate used. The Company reviews and periodically updates the discount rate to reflect changes in bond market rates. The impact of the discount rate change is reflected as the actuarial gain or loss. The following table provides a reconciliation of the changes in the post-retirement supplemental life insurance plan obligation and the net periodic benefit cost for the years ended December 31: (Dollars in thousands) 2021 2020 2019 Reconciliation of benefit obligation: Benefit obligation at beginning of year $ 2,631 $ 2,424 $ 2,084 Net periodic benefit cost: Service cost (23) (21) (16) Interest cost 83 87 95 Actuarial loss (gain) (71) 141 261 Total net period cost $ (11) $ 207 $ 340 Benefit obligation at end of year $ 2,620 $ 2,631 $ 2,424 Funded status: Accrued liability as of December 31 $ (2,620) $ (2,631) $ (2,424) Discount rate used for benefit obligation (1) 3.25 % 3.25 % 4.00 % __________________________________________
Schedule of Expected Benefit Payments	SERP benefits expected to be paid in each of the next five years and in the aggregate five years thereafter: (Dollars in thousands) Payments 2022 $ 276 2023 276 2024 276 2025 276 2026 276 2027-2031 560

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2021
Share-based Payment Arrangement [Abstract]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The table below provides a summary of the stock options granted, including the weighted average fair value, the fair value as a percentage of the market value of the underlying stock at the date of grant and the average assumptions used in the model for the years indicated: Stock Option Awards 2021 2020 2019 Stock options granted 17,580 24,208 23,218 Term in years 10 10 10 Weighted average assumptions used in the fair value model: Expected volatility 44 % 37 % 33 % Expected dividend yield 3.01 % 3.43 % 2.75 % Expected life in years 6.5 6.5 6.5 Risk-free interest rate 1.28 % 1.02 % 2.58 % Weighted average market price on date of grants $ 32.73 $ 28.22 $ 29.84 Per share weighted average fair value $ 11.95 $ 8.41 $ 8.70 Fair value as a percentage of market value at grant date 36 % 30 % 29 %
Schedule of Share-based Compensation, Stock Options, Activity	Stock option transactions during the year ended December 31, 2021 are summarized as follows: (Dollars in thousands, except per share data) Options Weighted Average Exercise Weighted Average Remaining Life in Years Aggregate Outstanding December 31, 2020 181,302 $ 24.07 5.3 $ 627 Granted 17,580 32.73 Exercised 11,347 20.16 Forfeited/Expired 643 30.24 Outstanding December 31, 2021 186,892 $ 25.10 4.9 $ 3,704 Vested and Exercisable at December 31, 2021 128,203 $ 22.60 3.4 $ 2,861
Schedule of Unvested Options	Stock option activity during the year ended December 31, 2021 for unvested options are summarized as follows: Unvested Options Options Weighted Average Grant Date Fair Value Unvested December 31, 2020 59,244 $ 9.27 Granted 17,580 11.95 Vested 17,528 9.73 Forfeited 607 9.63 Unvested December 31, 2021 58,689 $ 9.93
Schedule of Restricted Stock Awards Granted	The table below provides a summary of restricted stock awards granted during the years indicated: Restricted Stock Awards (number of underlying shares) 2021 2020 2019 Two-year vesting 8,109 8,295 8,368 Four-year vesting 24,307 26,015 22,403 Performance-based vesting 21,559 25,001 24,427 Total restricted stock awards 53,975 59,311 55,198 Weighted average grant date fair value $ 32.73 $ 28.22 $ 29.84
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity	The following table sets forth a summary of the activity for the Company's restricted stock awards: (Dollars in thousands, except per share data) Restricted Weighted Average Grant Price Per Share Unvested December 31, 2020 116,174 $ 29.70 Granted 53,975 32.73 Vested/released 53,960 30.78 Forfeited 2,318 30.61 Unvested December 31, 2021 113,871 $ 30.61

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	The components of income tax expense for the years ended December 31, were calculated using the asset and liability method as follows: (Dollars in thousands) 2021 2020 2019 Current expense: Federal $ 10,786 $ 11,305 $ 7,728 State 3,771 4,542 3,028 Total current expense 14,557 15,847 10,756 Deferred benefit: Federal (945) (3,940) (339) State (25) (1,735) (36) Total deferred benefit (970) (5,675) (375) Total income tax expense $ 13,587 $ 10,172 $ 10,381
Schedule of Effective Income Tax Rate Reconciliation	The provision for income taxes differs from the amount computed by applying the statutory U.S. federal income tax rate of 21% for 2021, 2020, and 2019 to income before taxes as follows: (Dollars in thousands) 2021 2020 2019 Computed income tax expense at statutory rate $ 11,709 $ 8,742 $ 9,362 State income taxes, net of federal tax benefit 2,959 2,218 2,364 Tax-exempt income, net of disallowance (832) (865) (894) Bank-owned life insurance income, net (172) (123) (134) Tax expense (benefit) from stock compensation (85) 25 (137) Other 8 175 (180) Total income tax expense $ 13,587 $ 10,172 $ 10,381 Effective income tax rate 24.4 % 24.4 % 23.3 %
Schedule of Deferred Tax Assets and Liabilities	At December 31, the tax effects of each type of income and expense item that give rise to deferred taxes are as follows: (Dollars in thousands) 2021 2020 Deferred tax asset: Allowance for Credit Losses $ 14,277 $ 12,415 Depreciation 2,454 2,174 Supplemental employee retirement plans 794 717 Deferred compensation and benefits 2,799 291 Non-accrual interest 699 610 Stock-based compensation expense 667 662 Lease liability 6,562 4,886 Cashflow hedge swap — 791 Deferred fees on PPP loans 689 2,808 Other 820 13 Total 29,761 25,367 Deferred tax liability: Goodwill 1,571 1,576 Net unrealized gains on equity securities 80 31 Net unrealized gains on debt securities 1,245 6,896 Deferred origination costs 612 645 Lease ROU asset 6,562 4,886 Other 47 43 Total 10,117 14,077 Net deferred tax asset $ 19,644 $ 11,290

Earnings per share (Tables)

Earnings per share (Tables)	12 Months Ended
	Dec. 31, 2021
Earnings Per Share [Abstract]
Schedule of Weighted Average Number of Shares	The table below presents the increase in average shares outstanding, using the treasury stock method, for the diluted earnings per share calculation for the years indicated: 2021 2020 2019 Basic weighted average common shares outstanding 12,005,838 11,897,813 11,789,570 Dilutive shares 45,455 21,695 40,248 Diluted weighted average common shares outstanding 12,051,293 11,919,508 11,829,818

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring and Nonrecurring Basis	The following tables summarize significant assets and liabilities carried at fair value and placement in the fair value hierarchy at the dates specified: December 31, 2021 Fair Value Measurements Using: (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) Assets measured on a recurring basis: Debt securities $ 956,430 $ — $ 956,430 $ — Equity securities 1,785 1,785 — — FHLB stock 2,164 — 2,164 — Interest-rate swaps 528 — 528 — Assets measured on a non-recurring basis: Individually evaluated loans (collateral dependent) 15,210 — — 15,210 Liabilities measured on a recurring basis: Interest-rate swaps $ 528 $ — $ 528 $ — December 31, 2020 Fair Value Measurements Using: (Dollars in thousands) Fair Value (Level 1) (Level 2) (Level 3) Assets measured on a recurring basis: Debt securities $ 582,303 $ — $ 582,303 $ — Equity securities 746 746 — — FHLB stock 1,905 — 1,905 — Interest-rate swaps 2,286 — 2,286 — Assets measured on a non-recurring basis: Impaired loans (collateral dependent) 18,733 — — 18,733 Liabilities measured on a recurring basis: Interest-rate swaps $ 5,100 $ — $ 5,100 $ —
Quantitative Information About Significant Unobservable Inputs for Fair Value Measurements	The following table presents additional quantitative information about assets measured at fair value on a non-recurring basis for which the Company utilized Level 3 inputs (significant unobservable inputs for situations in which there is little, if any, market activity for the asset or liability) to determine fair value as of December 31, 2021 and December 31, 2020: Fair Value (Dollars in thousands) December 31, 2021 December 31, 2020 Valuation Technique Unobservable Input Unobservable Input Value or Range Assets measured on a non-recurring basis: Individually evaluated loans (collateral dependent) $ 15,210 $ 18,733 Appraisal of collateral Appraisal adjustments (1) 15% - 50% __________________________________________ (1) Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses.
Fair Value, by Balance Sheet Grouping	The carrying values, estimated fair values and placement in the fair value hierarchy of the Company's financial instruments for which fair value is only disclosed but not recognized on the Consolidated Balance Sheets at the dates indicated are summarized as follows: December 31, 2021 Fair Value Measurement (Dollars in thousands) Carrying Fair Value Level 1 Inputs Level 2 Inputs Level 3 Inputs Financial assets: Loans, net $ 2,872,980 $ 2,922,947 $ — $ — $ 2,922,947 Financial liabilities: CDs 206,449 206,450 — 206,450 — Borrowed funds 5,479 5,121 — 5,121 — Subordinated debt 58,979 58,460 — 58,460 — December 31, 2020 Fair Value Measurement (Dollars in thousands) Carrying Fair Value Level 1 Inputs Level 2 Inputs Level 3 Inputs Financial assets: Loans held for sale $ 371 $ 372 $ — $ 372 $ — Loans, net 3,029,295 3,064,791 — — 3,064,791 Financial liabilities: CDs 244,969 246,498 — 246,498 — Brokered deposits 74,995 76,652 — 76,652 — Borrowed funds 4,774 4,684 — 4,684 — Subordinated debt 73,744 76,769 — 76,769 — Excluded from the tables above are certain financial instruments with carrying values that approximated their fair value at the dates indicated, as they were short-term in nature or payable on demand. These include cash and cash equivalents, accrued interest and non-term deposit accounts. The respective carrying values of these instruments would all be classified within Level 1 of their fair value hierarchy. Also excluded from these tables are the fair values of commitments for unused portions of lines of credit and commitments to originate loans that were short-term, at current market rates and estimated to have no significant change in fair value.

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	12 Months Ended
	Dec. 31, 2021
Supplemental Cash Flow Elements [Abstract]
Schedule of Cash Flow, Supplemental Disclosures	The supplemental cash flow information for the years indicated is as follows: (Dollars in thousands) 2021 2020 2019 Supplemental financial data: Cash paid for: interest $ 7,880 $ 13,612 $ 21,384 Cash paid for: income taxes 12,335 17,672 10,557 Cash paid for: lease liability 1,251 1,242 1,205 Supplemental schedule of non-cash activity: Net purchases of investment securities not yet settled — — 810 Transfer from loans to other real estate owned 2,400 — 255 ROU lease assets: operating leases (1) 6,608 27 19,635 _________________________________________ (1) Represents net new right of use ("ROU") lease assets added in the periods indicated.

Condensed Parent Company Only_2

Condensed Parent Company Only Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Schedule of Condensed Balance Sheet	Balance Sheets December 31, (Dollars in thousands, except per share data) 2021 2020 Assets Cash $ 1,981 $ 3,302 Investment in subsidiaries 404,975 406,032 Other assets 365 430 Total assets $ 407,321 $ 409,764 Liabilities and Shareholders' Equity Liabilities Subordinated debt $ 58,979 $ 73,744 Accrued interest payable 1,444 1,591 Other liabilities 3 3 Total liabilities 60,426 75,338 Shareholders' equity: Preferred stock, $0.01 par value per share; 1,000,000 shares authorized; no shares issued — — Common stock $0.01 par value per share; 40,000,000 shares authorized; 12,038,382 and 11,937,795 shares issued, respectively 120 119 Additional paid-in capital 100,352 97,137 Retained earnings 241,761 214,977 Accumulated other comprehensive income 4,662 22,193 Total shareholders' equity 346,895 334,426 Total liabilities and shareholders' equity $ 407,321 $ 409,764
Schedule of Condensed Income Statement	Statements of Income For the years ended December 31, (Dollars in thousands) 2021 2020 2019 Equity in undistributed net income of subsidiaries $ 22,985 $ 30,309 $ 29,329 Dividends distributed by subsidiaries 22,350 3,100 5,700 Total income 45,335 33,409 35,029 Interest expense 3,495 2,502 925 Other operating expenses 891 215 226 Total operating expenses 4,386 2,717 1,151 Income before income taxes 40,949 30,692 33,878 Benefit from income taxes (1,222) (764) (322) Net income $ 42,171 $ 31,456 $ 34,200
Schedule of Condensed Cash Flow Statement	Statements of Cash Flows For the years ended December 31, (Dollars in thousands) 2021 2020 2019 Cash flows from operating activities: Net income $ 42,171 $ 31,456 $ 34,200 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed net income of subsidiaries (22,985) (30,309) (29,329) Payment from subsidiary bank for stock compensation expense 2,094 1,872 1,869 Changes in: Net decrease (increase) in other assets 66 (229) (3) Net (decrease) increase in other liabilities (25) 385 12 Net cash provided by operating activities 21,321 3,175 6,749 Cash flows from investing activities: Investment in subsidiary — (53,000) — Net cash provided by investing activities — (53,000) — Cash flows from financing activities: Repayment of subordinated debt (2) (14,887) — — Proceeds from the issuance of subordinated debt — 60,000 — Cash dividends paid, net of dividend reinvestment plan (7,627) (7,105) (6,371) Proceeds from issuance of common stock 59 91 69 Net settlement for employee tax withholding on restricted stock and options (346) (233) (402) Net proceeds from exercise of stock options 159 21 185 Net cash (used in) provided by financing activities (22,642) 52,774 (6,519) Net (decrease) increase in cash and cash equivalents (1,321) 2,949 230 Cash at beginning of year 3,302 353 123 Cash at end of year $ 1,981 $ 3,302 $ 353

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2021USD ($)segmentpaymentbranch	Dec. 31, 2020USD ($)	Jul. 31, 2000branch
Summary of Significant Accounting Policies [Line Items]
Number of branches	26
Reportable operating segments | segment	1
Number of offices related to the goodwill in acquisition			2
Unrecognized tax benefits | $	$ 0	$ 0
Bank premises, land improvements, and leasehold improvements | Minimum
Summary of Significant Accounting Policies [Line Items]
Premises and equipment useful life	10 years
Bank premises, land improvements, and leasehold improvements | Maximum
Summary of Significant Accounting Policies [Line Items]
Premises and equipment useful life	39 years
Computer software and equipment | Minimum
Summary of Significant Accounting Policies [Line Items]
Premises and equipment useful life	3 years
Computer software and equipment | Maximum
Summary of Significant Accounting Policies [Line Items]
Premises and equipment useful life	5 years
Furniture, fixtures, and equipment | Minimum
Summary of Significant Accounting Policies [Line Items]
Premises and equipment useful life	3 years
Furniture, fixtures, and equipment | Maximum
Summary of Significant Accounting Policies [Line Items]
Premises and equipment useful life	10 years
Residential mortgages
Summary of Significant Accounting Policies [Line Items]
Early payment default period | payment	4
Lines of Credit and Demand Notes | Minimum
Summary of Significant Accounting Policies [Line Items]
Period that loan deferred income is amortized	3 years
Lines of Credit and Demand Notes | Maximum
Summary of Significant Accounting Policies [Line Items]
Period that loan deferred income is amortized	5 years

Investment Securities - Narrati

Investment Securities - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Debt securities at fair value (amortized cost of $950,523 and $551,191, respectively)	$ 956,430	$ 582,303
Accrued interest related to AFS debt securities	3,200	2,300
Callable debt securities, fair value	181,100
Equity securities at fair value	1,785	746
Collateral Pledged
Debt Securities, Available-for-sale [Line Items]
Debt securities pledged as collateral	949,300	577,300
Mortgage backed securities, excluding CMOs
Debt Securities, Available-for-sale [Line Items]
Debt securities at fair value (amortized cost of $950,523 and $551,191, respectively)	22,900	18,700
Tax-exempt municipal securities
Debt Securities, Available-for-sale [Line Items]
Debt securities at fair value (amortized cost of $950,523 and $551,191, respectively)	92,672	95,451
Tax exempt interest earned on municipal securities	3,400	3,500	$ 3,800
Average balance tax exempt securities	87,800	91,000
Investments used for supplemental executive retirement plan
Debt Securities, Available-for-sale [Line Items]
Equity securities at fair value	$ 924	$ 476

Investment Securities - Investm

Investment Securities - Investments Reconciliation (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 950,523	$ 551,191
Unrealized Gains	18,020	31,402
Unrealized Losses	12,113	290
Fair Value	956,430	582,303
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	62,850
Unrealized Gains	0
Unrealized Losses	684
Fair Value	62,166
Residential federal agency MBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	412,902	209,923
Unrealized Gains	2,406	6,339
Unrealized Losses	9,113	287
Fair Value	406,195	215,975
Commercial federal agency MBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	99,681	102,468
Unrealized Gains	3,783	7,726
Unrealized Losses	52	0
Fair Value	103,412	110,194
Taxable municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	272,507	135,117
Unrealized Gains	5,607	9,293
Unrealized Losses	2,264	3
Fair Value	275,850	144,407
Tax-exempt municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	87,024	88,235
Unrealized Gains	5,648	7,216
Unrealized Losses	0	0
Fair Value	92,672	95,451
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	8,559	10,448
Unrealized Gains	441	828
Unrealized Losses	0	0
Fair Value	9,000	11,276
Subordinated corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,000	5,000
Unrealized Gains	135	0
Unrealized Losses	0	0
Fair Value	$ 7,135	$ 5,000

Investment Securities - Continu

Investment Securities - Continuous Loss Position (Details) $ in Thousands	Dec. 31, 2021USD ($)investment	Dec. 31, 2020USD ($)investment
Debt Securities, Available-for-sale [Line Items]
Debt securities, temporarily impaired, less than 12 months, fair value	$ 457,314	$ 53,393
Debt Securities, temporarily impaired, less than 12 months, unrealized loss	9,751	287
Debt securities, temporarily impaired, 12 months or longer, fair value	58,008	2,107
Debt securities, temporarily impaired, 12 months or longer, unrealized loss	2,362	3
Debt securities, temporarily impaired, fair value	515,322	55,500
Debt securities, temporarily impaired, unrealized loss	$ 12,113	$ 290
Number of holdings | investment	172	14
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, temporarily impaired, less than 12 months, fair value	$ 62,166
Debt Securities, temporarily impaired, less than 12 months, unrealized loss	684
Debt securities, temporarily impaired, 12 months or longer, fair value	0
Debt securities, temporarily impaired, 12 months or longer, unrealized loss	0
Debt securities, temporarily impaired, fair value	62,166
Debt securities, temporarily impaired, unrealized loss	$ 684
Number of holdings | investment	9
Residential federal agency MBS
Debt Securities, Available-for-sale [Line Items]
Debt securities, temporarily impaired, less than 12 months, fair value	$ 272,863	$ 51,396
Debt Securities, temporarily impaired, less than 12 months, unrealized loss	6,992	284
Debt securities, temporarily impaired, 12 months or longer, fair value	51,281	2,107
Debt securities, temporarily impaired, 12 months or longer, unrealized loss	2,121	3
Debt securities, temporarily impaired, fair value	324,144	53,503
Debt securities, temporarily impaired, unrealized loss	$ 9,113	$ 287
Number of holdings | investment	44	10
Commercial federal agency MBS
Debt Securities, Available-for-sale [Line Items]
Debt securities, temporarily impaired, less than 12 months, fair value	$ 4,897
Debt Securities, temporarily impaired, less than 12 months, unrealized loss	52
Debt securities, temporarily impaired, 12 months or longer, fair value	0
Debt securities, temporarily impaired, 12 months or longer, unrealized loss	0
Debt securities, temporarily impaired, fair value	4,897
Debt securities, temporarily impaired, unrealized loss	$ 52
Number of holdings | investment	1
Taxable municipal securities
Debt Securities, Available-for-sale [Line Items]
Debt securities, temporarily impaired, less than 12 months, fair value	$ 117,388	$ 1,997
Debt Securities, temporarily impaired, less than 12 months, unrealized loss	2,023	3
Debt securities, temporarily impaired, 12 months or longer, fair value	6,727	0
Debt securities, temporarily impaired, 12 months or longer, unrealized loss	241	0
Debt securities, temporarily impaired, fair value	124,115	1,997
Debt securities, temporarily impaired, unrealized loss	$ 2,264	$ 3
Number of holdings | investment	118	4

Investment Securities - Maturit

Investment Securities - Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Amortized Cost
Due in one year or less	$ 13,398
Due after one, but within five years	189,626
Due after five, but within ten years	271,354
Due after ten years	476,145
Amortized Cost	950,523	$ 551,191
Fair Value
Due in one year or less	13,478
Due after one, but within five years	195,778
Due after five, but within ten years	276,528
Due after ten years	470,646
Total debt securities	$ 956,430	$ 582,303

Investment Securities - Sales (

Investment Securities - Sales (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Amortized cost of debt securities sold	$ 2,931	$ 5,680	$ 11,621
Gross realized gains on sales	128	227	149
Gross realized losses on sales	0	0	(3)
Total proceeds from sales of debt securities	$ 3,059	$ 5,907	$ 11,767

Investment Securities - Equity

Investment Securities - Equity Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Net (losses) gains recognized during the period on equity securities	$ 246	$ (49)	$ 367
Less: Net (losses) gains realized on equity securities sold during the period	57	(11)
Unrealized gains (losses) recognized during the reporting period on equity securities still held at the end of the period (included in other income)	$ 189	$ (38)

Loans - Balance by Class of Loa

Loans - Balance by Class of Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Loan Portfolio Classifications, Adoption of CECL
Total loans	$ 2,920,684	$ 3,073,860
Allowance for credit losses	(47,704)	(44,565)	$ (33,614)	$ (33,849)
Net loans	2,872,980	3,029,295
Commercial
Loan Portfolio Classifications, Adoption of CECL
Total loans	2,574,807	2,726,710
Commercial real estate
Loan Portfolio Classifications, Adoption of CECL
Total loans	1,680,792	1,476,236
Commercial and industrial
Loan Portfolio Classifications, Adoption of CECL
Total loans	412,070	435,548
Commercial construction
Loan Portfolio Classifications, Adoption of CECL
Total loans	410,443	371,856
SBA Paycheck Protection Program ("PPP")
Loan Portfolio Classifications, Adoption of CECL
Total loans	71,502	443,070
Retail
Loan Portfolio Classifications, Adoption of CECL
Total loans	345,877	347,150
Residential mortgages
Loan Portfolio Classifications, Adoption of CECL
Total loans	256,940	252,995
Home equity loans and lines
Loan Portfolio Classifications, Adoption of CECL
Total loans	80,467	85,178
Consumer
Loan Portfolio Classifications, Adoption of CECL
Total loans	$ 8,470	$ 8,977

Loans - Loan Categories Narrati

Loans - Loan Categories Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Gross loans
Loan origination fees	$ 7,500	$ 13,400
Accrued interest receivable on loans	10,200	13,800
Outstanding loan balances to related parties	37,700	48,700
Unadvanced lines of credit available to related parties	14,500	23,200
New loans and net increases to loan balances to related parties during period	2,100	16,100
Principal paydowns on related party loans	21,800	11,400
Financing receivable, average loan size	2,920,684	3,073,860
Commercial
Gross loans
Participation loans amount	62,600	77,100
Financing receivable, average loan size	2,574,807	2,726,710
Participations loans sold that are still serviced amount	66,700	65,300
Tax exempt interest income on qualified commercial loans	1,800	2,000	$ 2,100
Average tax exempt loan balances	54,500	58,000
SBA Paycheck Protection Program ("PPP")
Gross loans
Loan origination fees	$ 2,400	10,000
Interest rate	1.00%
Finance receivable term, minimum	2 years
Finance receivable term, maximum	5 years
Gross deferred Income	$ 26,200
Amortization of deferred loan origination fees, net	16,600	7,200
Provision for credit losses	2,400
Financing receivable, average loan size	71,502	443,070
SBA Paycheck Protection Program ("PPP") | Quarterly Average
Gross loans
Financing receivable, average loan size	187
Residential mortgages
Gross loans
Financing receivable, average loan size	256,940	252,995
Amount of loans serviced for others	$ 10,400	$ 13,700

Loans - Loans Serving as Collat

Loans - Loans Serving as Collateral (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans pledged to FHLB	$ 383,855	$ 434,957
Commercial real estate
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans pledged to FHLB	143,056	195,936
Residential mortgages
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans pledged to FHLB	235,744	233,050
Home equity
Financial Instruments Owned and Pledged as Collateral [Line Items]
Total loans pledged to FHLB	$ 5,055	$ 5,971

ACL for Loans - Additional Info

ACL for Loans - Additional Information (Details)	Jan. 01, 2021USD ($)	Dec. 31, 2021USD ($)loan	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Financing Receivable, Allowance for Credit Loss [Line Items]
Retained earnings		$ (241,761,000)	$ (214,977,000)
Allowance for credit losses		$ 47,704,000	44,565,000	$ 33,614,000	$ 33,849,000
Allowance for credit losses to total loans ratio		1.63%
Total loans		$ 2,920,684,000	3,073,860,000
Adversely classified loans to all loans, ratio		2.09%
Number of days a loan must be paid current before accrual of interest is resumed		180 days
Non-accrual Loans		$ 26,522,000	$ 38,050,000
The ratio of non-accrual loans to total loans		0.91%	1.24%
Total accruing impaired loans		$ 8,400,000
Total non accruing impaired loans		26,200,000	$ 10,300,000
Interest income that was not recognized on loans that were deem impaired		$ 1,400,000	1,400,000	1,000,000
Pass classified loans to all loans, ratio		0.20%
Total Troubled Debt Restructure (TDR) loans		$ 16,400,000	17,700,000
TDR loans on accrual status		8,600,000	10,300,000
TDR loans included in non-performing loans		7,800,000	7,500,000
Provision for credit losses		1,770,000	12,499,000	1,180,000
Charge-offs associated with new TDRs		0	1,100,000
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans		1,680,792,000	1,476,236,000
Non-accrual Loans		22,870,000	29,680,000
Collateral Pledged
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans		34,600,000
Criticized
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans		61,000,000
Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Non-accrual Loans		$ 3,000	137,000
Number of loans with short-term payment deferrals | loan		3
Amount of short-term payment deferrals		$ 5,500,000
Pass | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Total loans		1,639,283,000
CECL adjustment upon adoption
Financing Receivable, Allowance for Credit Loss [Line Items]
Retained earnings	$ 6,500,000
Deferred income taxes	2,500,000
Allowance for credit losses	6,600,000			0	$ 0
Unfunded Loan Commitment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses	2,500,000	3,700,000
Provision for credit losses		1,200,000
Unfunded Loan Commitment | CECL adjustment upon adoption
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses	$ 2,400,000
Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses		47,704,000	44,565,000	33,614,000
Provision for credit losses		543,000	12,499,000
Loans Excluding Unfunded Commitments | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses		31,847,000	26,755,000	$ 18,338,000
Provision for credit losses		$ (786,000)	8,417,000
Loans Excluding Unfunded Commitments | CECL adjustment upon adoption
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses			6,560,000
Loans Excluding Unfunded Commitments | CECL adjustment upon adoption | Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses			$ 7,664,000

ACL for Loans - Credit Risk Ind

ACL for Loans - Credit Risk Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
2021	$ 791,178
2020	432,278
2019	365,597
2018	193,277
2017	219,625
Prior	630,112
Revolving Loans	285,315
Revolving Loans Converted to Term	3,302
Total loans	2,920,684	$ 3,073,860
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2021	402,838
2020	220,942
2019	242,865
2018	124,374
2017	186,494
Prior	500,260
Revolving Loans	3,019
Revolving Loans Converted to Term	0
Total loans	1,680,792	1,476,236
Commercial real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	402,838
2020	220,942
2019	239,248
2018	120,286
2017	173,652
Prior	479,298
Revolving Loans	3,019
Revolving Loans Converted to Term	0
Total loans	1,639,283
Commercial real estate | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	989
2018	802
2017	0
Prior	7,626
Revolving Loans	0
Revolving Loans Converted to Term	0
Total loans	9,417
Commercial real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	2,628
2018	3,111
2017	12,842
Prior	13,336
Revolving Loans	0
Revolving Loans Converted to Term	0
Total loans	31,917
Commercial real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	0
2018	175
2017	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term	0
Total loans	175
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
2021	64,555
2020	40,977
2019	38,365
2018	20,812
2017	15,067
Prior	50,111
Revolving Loans	180,813
Revolving Loans Converted to Term	1,370
Total loans	412,070	435,548
Commercial and industrial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	64,555
2020	40,333
2019	36,177
2018	19,754
2017	14,983
Prior	44,835
Revolving Loans	174,320
Revolving Loans Converted to Term	1,243
Total loans	396,200
Commercial and industrial | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	644
2019	2,173
2018	958
2017	59
Prior	1,431
Revolving Loans	4,053
Revolving Loans Converted to Term	18
Total loans	9,336
Commercial and industrial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	15
2018	100
2017	25
Prior	3,845
Revolving Loans	2,440
Revolving Loans Converted to Term	109
Total loans	6,534
Commercial construction
Financing Receivable, Credit Quality Indicator [Line Items]
2021	175,069
2020	106,165
2019	54,907
2018	24,343
2017	4,561
Prior	19,489
Revolving Loans	24,864
Revolving Loans Converted to Term	1,045
Total loans	410,443	371,856
Commercial construction | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	175,069
2020	106,165
2019	54,907
2018	24,343
2017	4,561
Prior	19,489
Revolving Loans	24,864
Revolving Loans Converted to Term	0
Total loans	409,398
Commercial construction | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term	1,045
Total loans	1,045
SBA Paycheck Protection Program ("PPP")
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	71,502	443,070
SBA Paycheck Protection Program ("PPP") | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	66,232
2020	5,270
2019	0
2018	0
2017	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term	0
Total loans	71,502
Residential mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2021	79,130
2020	56,948
2019	27,343
2018	22,743
2017	12,886
Prior	57,890
Revolving Loans	0
Revolving Loans Converted to Term	0
Total loans	256,940	252,995
Residential mortgages | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	79,130
2020	56,948
2019	27,343
2018	22,743
2017	12,886
Prior	55,571
Revolving Loans	0
Revolving Loans Converted to Term	0
Total loans	254,621
Residential mortgages | Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	590
Revolving Loans	0
Revolving Loans Converted to Term	0
Total loans	590
Residential mortgages | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	1,729
Revolving Loans	0
Revolving Loans Converted to Term	0
Total loans	1,729
Home equity loans and lines
Financing Receivable, Credit Quality Indicator [Line Items]
2021	486
2020	478
2019	498
2018	0
2017	0
Prior	1,972
Revolving Loans	76,619
Revolving Loans Converted to Term	414
Total loans	80,467	85,178
Home equity loans and lines | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	486
2020	478
2019	498
2018	0
2017	0
Prior	1,727
Revolving Loans	76,619
Revolving Loans Converted to Term	414
Total loans	80,222
Home equity loans and lines | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	0
2020	0
2019	0
2018	0
2017	0
Prior	245
Revolving Loans	0
Revolving Loans Converted to Term	0
Total loans	245
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2021	2,868
2020	1,498
2019	1,619
2018	1,005
2017	617
Prior	390
Revolving Loans	0
Revolving Loans Converted to Term	473
Total loans	8,470	$ 8,977
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2021	2,843
2020	1,498
2019	1,619
2018	1,005
2017	617
Prior	390
Revolving Loans	0
Revolving Loans Converted to Term	473
Total loans	8,445
Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
2021	25
2020	0
2019	0
2018	0
2017	0
Prior	0
Revolving Loans	0
Revolving Loans Converted to Term	0
Total loans	$ 25

ACL for Loans - Past Due and No

ACL for Loans - Past Due and Non-Accrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Schedule of Aging of Financing Receivables [Line Items]
Total loans	$ 2,920,684	$ 3,073,860
Total Non-accrual Loans	26,522	38,050
Non-accrual Loans without a Specific Reserve	10,405
Non-accrual Loans with a Specific Reserve	16,117
Related Specific Reserve	1,267
Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	5,946
30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	2,877
60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	724
Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans	2,345
Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	2,914,738
Commercial real estate
Schedule of Aging of Financing Receivables [Line Items]
Total loans	1,680,792	1,476,236
Total Non-accrual Loans	22,870	29,680
Non-accrual Loans without a Specific Reserve	7,144
Non-accrual Loans with a Specific Reserve	15,726
Related Specific Reserve	896
Commercial real estate | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	3,636
Commercial real estate | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	1,917
Commercial real estate | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	0
Commercial real estate | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans	1,719
Commercial real estate | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	1,677,156
Commercial and industrial
Schedule of Aging of Financing Receivables [Line Items]
Total loans	412,070	435,548
Total Non-accrual Loans	1,542	4,574
Non-accrual Loans without a Specific Reserve	1,337
Non-accrual Loans with a Specific Reserve	205
Related Specific Reserve	185
Commercial and industrial | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	1,436
Commercial and industrial | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	564
Commercial and industrial | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	678
Commercial and industrial | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans	194
Commercial and industrial | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	410,634
Commercial construction
Schedule of Aging of Financing Receivables [Line Items]
Total loans	410,443	371,856
Total Non-accrual Loans	1,045	2,999
Non-accrual Loans without a Specific Reserve	1,045
Non-accrual Loans with a Specific Reserve	0
Related Specific Reserve	0
Commercial construction | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	0
Commercial construction | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	0
Commercial construction | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	0
Commercial construction | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans	0
Commercial construction | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	410,443
SBA Paycheck Protection Program ("PPP")
Schedule of Aging of Financing Receivables [Line Items]
Total loans	71,502	443,070
Total Non-accrual Loans	0	0
Non-accrual Loans without a Specific Reserve	0
Non-accrual Loans with a Specific Reserve	0
Related Specific Reserve	0
SBA Paycheck Protection Program ("PPP") | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	181
SBA Paycheck Protection Program ("PPP") | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	162
SBA Paycheck Protection Program ("PPP") | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	19
SBA Paycheck Protection Program ("PPP") | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans	0
SBA Paycheck Protection Program ("PPP") | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	71,321
Residential mortgages
Schedule of Aging of Financing Receivables [Line Items]
Total loans	256,940	252,995
Total Non-accrual Loans	794	414
Non-accrual Loans without a Specific Reserve	633
Non-accrual Loans with a Specific Reserve	161
Related Specific Reserve	161
Residential mortgages | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	614
Residential mortgages | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	182
Residential mortgages | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	0
Residential mortgages | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans	432
Residential mortgages | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	256,326
Home equity loans and lines
Schedule of Aging of Financing Receivables [Line Items]
Total loans	80,467	85,178
Total Non-accrual Loans	246	381
Non-accrual Loans without a Specific Reserve	246
Non-accrual Loans with a Specific Reserve	0
Related Specific Reserve	0
Home equity loans and lines | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	45
Home equity loans and lines | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	45
Home equity loans and lines | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	0
Home equity loans and lines | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans	0
Home equity loans and lines | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	80,422
Consumer
Schedule of Aging of Financing Receivables [Line Items]
Total loans	8,470	8,977
Total Non-accrual Loans	25	$ 2
Non-accrual Loans without a Specific Reserve	0
Non-accrual Loans with a Specific Reserve	25
Related Specific Reserve	25
Consumer | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	34
Consumer | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	7
Consumer | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans	27
Consumer | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans	0
Consumer | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans	$ 8,436

ACL for Loans - Interest Lost O

ACL for Loans - Interest Lost On Non-accrual Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Receivables [Abstract]
Income that would have been recognized if non-accrual loans had been current	$ 2,028	$ 1,946	$ 1,893
Less income recognized	633	472	244
Reduction in interest income	$ 1,395	$ 1,474	$ 1,649

ACL for Loans - Impaired Loans

ACL for Loans - Impaired Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	$ 41,135	$ 52,736
Total Recorded Investment in Collateral Dependent Loans	34,640	48,318
Recorded Investment without a Specific Reserve	18,406	23,400
Recorded Investment with a Specific Reserve	16,234	24,918
Related Specific Reserve	1,024	6,185
Commercial real estate
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	29,562	37,184
Total Recorded Investment in Collateral Dependent Loans	27,617	35,915
Recorded Investment without a Specific Reserve	11,891	14,728
Recorded Investment with a Specific Reserve	15,726	21,187
Related Specific Reserve	896	3,454
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	8,880	10,628
Total Recorded Investment in Collateral Dependent Loans	4,699	8,409
Recorded Investment without a Specific Reserve	4,191	4,696
Recorded Investment with a Specific Reserve	508	3,713
Related Specific Reserve	128	2,713
Commercial construction
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	1,181	3,668
Total Recorded Investment in Collateral Dependent Loans	1,045	2,999
Recorded Investment without a Specific Reserve	1,045	2,999
Recorded Investment with a Specific Reserve	0	0
Related Specific Reserve	0	0
SBA Paycheck Protection Program ("PPP")
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	0	0
Total Recorded Investment in Collateral Dependent Loans	0	0
Recorded Investment without a Specific Reserve	0	0
Recorded Investment with a Specific Reserve	0	0
Related Specific Reserve	0	0
Residential mortgages
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	1,165	699
Total Recorded Investment in Collateral Dependent Loans	1,033	596
Recorded Investment without a Specific Reserve	1,033	596
Recorded Investment with a Specific Reserve	0	0
Related Specific Reserve	0	0
Home equity loans and lines
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	347	539
Total Recorded Investment in Collateral Dependent Loans	246	381
Recorded Investment without a Specific Reserve	246	381
Recorded Investment with a Specific Reserve	0	0
Related Specific Reserve	0	0
Consumer
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	0	18
Total Recorded Investment in Collateral Dependent Loans	0	18
Recorded Investment without a Specific Reserve	0	0
Recorded Investment with a Specific Reserve	0	18
Related Specific Reserve	$ 0	$ 18

ACL for Loans - Troubled Debt R

ACL for Loans - Troubled Debt Restructures and Prior Period Trouble Debt Restructures (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)loan	Dec. 31, 2020USD ($)loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	7	16
Pre-modification Outstanding Recorded Investment	$ 3,911	$ 7,756
Post-modification Outstanding Recorded Investment	$ 3,574	$ 5,114
Number of TDRs that Defaulted | loan	3	10
Post-modification Outstanding Recorded Investment	$ 696	$ 3,976
Allowance for credit losses associated with TDR loans listed above	$ 33	$ 386
Extended maturity date
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	3	2
Post-modification Outstanding Recorded Investment	$ 71	$ 150
Temporary payment reduction and payment re-amortization of remaining principal over extended term
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	2	10
Post-modification Outstanding Recorded Investment	$ 885	$ 3,316
Temporary interest-only payment plan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	1
Post-modification Outstanding Recorded Investment	$ 14
Forbearance of post default rights
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan		4
Post-modification Outstanding Recorded Investment		$ 1,648
Other payment concessions
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	1
Post-modification Outstanding Recorded Investment	$ 2,604
Commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	3	3
Pre-modification Outstanding Recorded Investment	$ 3,591	$ 1,858
Post-modification Outstanding Recorded Investment	$ 3,267	$ 1,838
Number of TDRs that Defaulted | loan	1	3
Post-modification Outstanding Recorded Investment	$ 663	$ 1,838
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	3	5
Pre-modification Outstanding Recorded Investment	$ 96	$ 976
Post-modification Outstanding Recorded Investment	$ 85	$ 344
Number of TDRs that Defaulted | loan	2	2
Post-modification Outstanding Recorded Investment	$ 33	$ 172
Commercial construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	0	6
Pre-modification Outstanding Recorded Investment	$ 0	$ 4,754
Post-modification Outstanding Recorded Investment	$ 0	$ 2,765
Number of TDRs that Defaulted | loan	0	4
Post-modification Outstanding Recorded Investment	$ 0	$ 1,798
SBA Paycheck Protection Program ("PPP")
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	0	0
Pre-modification Outstanding Recorded Investment	$ 0	$ 0
Post-modification Outstanding Recorded Investment	$ 0	$ 0
Number of TDRs that Defaulted | loan	0	0
Post-modification Outstanding Recorded Investment	$ 0	$ 0
Residential mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	1	0
Pre-modification Outstanding Recorded Investment	$ 224	$ 0
Post-modification Outstanding Recorded Investment	$ 222	$ 0
Number of TDRs that Defaulted | loan	0	0
Post-modification Outstanding Recorded Investment	$ 0	$ 0
Home equity loans and lines
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	0	1
Pre-modification Outstanding Recorded Investment	$ 0	$ 167
Post-modification Outstanding Recorded Investment	$ 0	$ 167
Number of TDRs that Defaulted | loan	0	1
Post-modification Outstanding Recorded Investment	$ 0	$ 168
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Restructurings | loan	0	1
Pre-modification Outstanding Recorded Investment	$ 0	$ 1
Post-modification Outstanding Recorded Investment	$ 0	$ 0
Number of TDRs that Defaulted | loan	0	0
Post-modification Outstanding Recorded Investment	$ 0	$ 0

ACL for Loans - ACL Activity (D

ACL for Loans - ACL Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	$ 44,565	$ 33,614	$ 33,849
Provision (benefit) for credit losses on loans	1,770	12,499	1,180
Recoveries		346	778
Less: Charge-offs		1,894	2,193
Allowance for credit losses, ending balance	47,704	44,565	33,614
Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	44,565	33,614
Provision (benefit) for credit losses on loans	543	12,499
Recoveries	363	346
Less: Charge-offs	4,327	1,894
Allowance for credit losses, ending balance	47,704	44,565	33,614
CECL adjustment upon adoption
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance		0	0
Allowance for credit losses, ending balance			0
CECL adjustment upon adoption | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	6,560
Allowance for credit losses, ending balance		6,560
Commercial real estate | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	26,755	18,338
Provision (benefit) for credit losses on loans	(786)	8,417
Recoveries	39	0
Less: Charge-offs	1,825	0
Allowance for credit losses, ending balance	31,847	26,755	18,338
Commercial real estate | CECL adjustment upon adoption | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	7,664
Allowance for credit losses, ending balance		7,664
Commercial and industrial | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	9,516	9,129
Provision (benefit) for credit losses on loans	408	683
Recoveries	139	265
Less: Charge-offs	2,477	561
Allowance for credit losses, ending balance	9,574	9,516	9,129
Commercial and industrial | CECL adjustment upon adoption | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	1,988
Allowance for credit losses, ending balance		1,988
Commercial construction | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	6,129	4,149
Provision (benefit) for credit losses on loans	272	3,280
Recoveries	105	0
Less: Charge-offs	0	1,300
Allowance for credit losses, ending balance	4,090	6,129	4,149
Commercial construction | CECL adjustment upon adoption | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	(2,416)
Allowance for credit losses, ending balance		(2,416)
Residential mortgages | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	1,530	1,195
Provision (benefit) for credit losses on loans	570	335
Recoveries	0	0
Less: Charge-offs	0	0
Allowance for credit losses, ending balance	1,405	1,530	1,195
Residential mortgages | CECL adjustment upon adoption | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	(695)
Allowance for credit losses, ending balance		(695)
Home equity loans and lines | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	467	536
Provision (benefit) for credit losses on loans	85	(114)
Recoveries	71	45
Less: Charge-offs	0	0
Allowance for credit losses, ending balance	465	467	536
Home equity loans and lines | CECL adjustment upon adoption | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	(158)
Allowance for credit losses, ending balance		(158)
Consumer | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	168	267
Provision (benefit) for credit losses on loans	(6)	(102)
Recoveries	9	36
Less: Charge-offs	25	33
Allowance for credit losses, ending balance	323	168	$ 267
Consumer | CECL adjustment upon adoption | Loans Excluding Unfunded Commitments
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses, beginning balance	$ 177
Allowance for credit losses, ending balance		$ 177

ACL for Loans - Other Real Esta

ACL for Loans - Other Real Estate Owned (Details)	12 Months Ended
	Dec. 31, 2021USD ($)property	Dec. 31, 2020USD ($)property	Dec. 31, 2019USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Carrying value of OREO	$ 0	$ 0
OREO Sold | property	1	0
OREO Additions | property	1	0
Number of consumer mortgage loans in process of foreclosure	0	0
Other real estate owned
Accounts, Notes, Loans and Financing Receivable [Line Items]
OREO fair value adjustment	$ 0	$ 0	$ 0

ACL for Loans - Prior Period Ev

ACL for Loans - Prior Period Evaluation Method (Details) $ in Thousands	Dec. 31, 2020USD ($)
Schedule of Financing Receivable by Evaluation Method [Line Items]
Loans Individually Evaluated for Impairment	$ 48,318
Loans Collectively Evaluated for Impairment	3,038,928
Total loans	3,087,246
Commercial real estate
Schedule of Financing Receivable by Evaluation Method [Line Items]
Loans Individually Evaluated for Impairment	35,915
Loans Collectively Evaluated for Impairment	1,442,320
Total loans	1,478,235
Commercial and industrial
Schedule of Financing Receivable by Evaluation Method [Line Items]
Loans Individually Evaluated for Impairment	8,409
Loans Collectively Evaluated for Impairment	427,251
Total loans	435,660
Commercial construction
Schedule of Financing Receivable by Evaluation Method [Line Items]
Loans Individually Evaluated for Impairment	2,999
Loans Collectively Evaluated for Impairment	370,310
Total loans	373,309
SBA Paycheck Protection Program ("PPP")
Schedule of Financing Receivable by Evaluation Method [Line Items]
Loans Individually Evaluated for Impairment	0
Loans Collectively Evaluated for Impairment	453,084
Total loans	453,084
Residential mortgages
Schedule of Financing Receivable by Evaluation Method [Line Items]
Loans Individually Evaluated for Impairment	596
Loans Collectively Evaluated for Impairment	252,375
Total loans	252,971
Home equity loans and lines
Schedule of Financing Receivable by Evaluation Method [Line Items]
Loans Individually Evaluated for Impairment	381
Loans Collectively Evaluated for Impairment	84,625
Total loans	85,006
Consumer
Schedule of Financing Receivable by Evaluation Method [Line Items]
Loans Individually Evaluated for Impairment	18
Loans Collectively Evaluated for Impairment	8,963
Total loans	$ 8,981

ACL for Loans - Prior Period Ad

ACL for Loans - Prior Period Adversely Classified Loans (Details) $ in Thousands	Dec. 31, 2020USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 3,087,246
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,478,235
Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	435,660
Commercial construction
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	373,309
SBA Paycheck Protection Program ("PPP")
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	453,084
Residential mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	252,971
Home equity loans and lines
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	85,006
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	8,981
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	52,386
Substandard | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	40,088
Substandard | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	7,901
Substandard | Commercial construction
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	3,501
Substandard | SBA Paycheck Protection Program ("PPP")
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Substandard | Residential mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	474
Substandard | Home equity loans and lines
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	381
Substandard | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	41
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	2,490
Doubtful | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	197
Doubtful | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	2,293
Doubtful | Commercial construction
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Doubtful | SBA Paycheck Protection Program ("PPP")
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Doubtful | Residential mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Doubtful | Home equity loans and lines
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Doubtful | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Loss
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Loss | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Loss | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Loss | Commercial construction
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Loss | SBA Paycheck Protection Program ("PPP")
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Loss | Residential mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Loss | Home equity loans and lines
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Loss | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	0
Not Adversely Classified
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	3,032,370
Not Adversely Classified | Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	1,437,950
Not Adversely Classified | Commercial and industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	425,466
Not Adversely Classified | Commercial construction
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	369,808
Not Adversely Classified | SBA Paycheck Protection Program ("PPP")
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	453,084
Not Adversely Classified | Residential mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	252,497
Not Adversely Classified | Home equity loans and lines
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	84,625
Not Adversely Classified | Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total loans	$ 8,940

ACL for Loans - Prior Period Pa

ACL for Loans - Prior Period Past Due and Nonaccrual (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Schedule of Aging of Financing Receivables [Line Items]
Total loans		$ 3,087,246
Non-accrual Loans	$ 26,522	38,050
30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		20,880
60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		513
Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans		8,095
Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		29,488
Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		3,057,758
Commercial real estate
Schedule of Aging of Financing Receivables [Line Items]
Total loans		1,478,235
Non-accrual Loans	22,870	29,680
Commercial real estate | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		6,105
Commercial real estate | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		499
Commercial real estate | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans		5,592
Commercial real estate | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		12,196
Commercial real estate | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		1,466,039
Commercial and industrial
Schedule of Aging of Financing Receivables [Line Items]
Total loans		435,660
Non-accrual Loans	1,542	4,574
Commercial and industrial | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		417
Commercial and industrial | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		13
Commercial and industrial | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans		607
Commercial and industrial | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		1,037
Commercial and industrial | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		434,623
Commercial construction
Schedule of Aging of Financing Receivables [Line Items]
Total loans		373,309
Non-accrual Loans	1,045	2,999
Commercial construction | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		13,466
Commercial construction | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		0
Commercial construction | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans		1,351
Commercial construction | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		14,817
Commercial construction | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		358,492
SBA Paycheck Protection Program ("PPP")
Schedule of Aging of Financing Receivables [Line Items]
Total loans		453,084
Non-accrual Loans	0	0
SBA Paycheck Protection Program ("PPP") | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		0
SBA Paycheck Protection Program ("PPP") | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		0
SBA Paycheck Protection Program ("PPP") | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans		0
SBA Paycheck Protection Program ("PPP") | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		0
SBA Paycheck Protection Program ("PPP") | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		453,084
Residential mortgages
Schedule of Aging of Financing Receivables [Line Items]
Total loans		252,971
Non-accrual Loans	794	414
Residential mortgages | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		890
Residential mortgages | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		0
Residential mortgages | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans		290
Residential mortgages | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		1,180
Residential mortgages | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		251,791
Home equity loans and lines
Schedule of Aging of Financing Receivables [Line Items]
Total loans		85,006
Non-accrual Loans	246	381
Home equity loans and lines | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		0
Home equity loans and lines | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		0
Home equity loans and lines | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans		255
Home equity loans and lines | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		255
Home equity loans and lines | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		84,751
Consumer
Schedule of Aging of Financing Receivables [Line Items]
Total loans		8,981
Non-accrual Loans	$ 25	2
Consumer | 30-59 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		2
Consumer | 60-89 Days Past Due
Schedule of Aging of Financing Receivables [Line Items]
Total loans		1
Consumer | Past Due 90 Days or More
Schedule of Aging of Financing Receivables [Line Items]
Total loans		0
Consumer | Total Past Due Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		3
Consumer | Current Loans
Schedule of Aging of Financing Receivables [Line Items]
Total loans		$ 8,978

ACL for Loans - Prior Period Im

ACL for Loans - Prior Period Impairment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	$ 52,736		$ 41,135
Total Recorded Investment in Impaired Loans	48,318		34,640
Recorded Investment without a Specific Reserve	23,400		18,406
Recorded Investment with a Specific Reserve	24,918		16,234
Related Specific Reserve	6,185		1,024
Average Recorded Investment	35,536	$ 31,825
Interest Income Recognized	337	993
Commercial real estate
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	37,184		29,562
Total Recorded Investment in Impaired Loans	35,915		27,617
Recorded Investment without a Specific Reserve	14,728		11,891
Recorded Investment with a Specific Reserve	21,187		15,726
Related Specific Reserve	3,454		896
Average Recorded Investment	19,606	17,033
Interest Income Recognized	138	509
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	10,628		8,880
Total Recorded Investment in Impaired Loans	8,409		4,699
Recorded Investment without a Specific Reserve	4,696		4,191
Recorded Investment with a Specific Reserve	3,713		508
Related Specific Reserve	2,713		128
Average Recorded Investment	8,639	11,135
Interest Income Recognized	168	385
Commercial construction
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	3,668		1,181
Total Recorded Investment in Impaired Loans	2,999		1,045
Recorded Investment without a Specific Reserve	2,999		1,045
Recorded Investment with a Specific Reserve	0		0
Related Specific Reserve	0		0
Average Recorded Investment	5,991	2,158
Interest Income Recognized	22	81
SBA Paycheck Protection Program ("PPP")
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	0		0
Total Recorded Investment in Impaired Loans	0		0
Recorded Investment without a Specific Reserve	0		0
Recorded Investment with a Specific Reserve	0		0
Related Specific Reserve	0		0
Average Recorded Investment	0
Interest Income Recognized	0
Residential mortgages
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	699		1,165
Total Recorded Investment in Impaired Loans	596		1,033
Recorded Investment without a Specific Reserve	596		1,033
Recorded Investment with a Specific Reserve	0		0
Related Specific Reserve	0		0
Average Recorded Investment	854	1,024
Interest Income Recognized	8	18
Home equity loans and lines
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	539		347
Total Recorded Investment in Impaired Loans	381		246
Recorded Investment without a Specific Reserve	381		246
Recorded Investment with a Specific Reserve	0		0
Related Specific Reserve	0		0
Average Recorded Investment	410	447
Interest Income Recognized	(1)	0
Consumer
Financing Receivable, Impaired [Line Items]
Unpaid Contractual Principal Balance	18		0
Total Recorded Investment in Impaired Loans	18		0
Recorded Investment without a Specific Reserve	0		0
Recorded Investment with a Specific Reserve	18		0
Related Specific Reserve	18		$ 0
Average Recorded Investment	36	28
Interest Income Recognized	$ 2	$ 0

ACL for Loans - Prior Period Al

ACL for Loans - Prior Period Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for credit losses, beginning balance	$ 44,565	$ 33,614	$ 33,849
Provision for credit losses	1,770	12,499	1,180
Recoveries		346	778
Less: Charge-offs		1,894	2,193
Allowance for credit losses, ending balance	47,704	44,565	33,614
Allocated to loans individually evaluated for impairment	1,484	6,185
Allocated to loans collectively evaluated for impairment	46,220	38,380
Loans Excluding Unfunded Commitments
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for credit losses, beginning balance	44,565	33,614
Provision for credit losses	543	12,499
Recoveries	363	346
Less: Charge-offs	4,327	1,894
Allowance for credit losses, ending balance	47,704	44,565	33,614
Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Allocated to loans individually evaluated for impairment	896	3,454
Allocated to loans collectively evaluated for impairment	30,951	23,301
Commercial real estate | Loans Excluding Unfunded Commitments
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for credit losses, beginning balance	26,755	18,338
Provision for credit losses	(786)	8,417
Recoveries	39	0
Less: Charge-offs	1,825	0
Allowance for credit losses, ending balance	31,847	26,755	18,338
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Allocated to loans individually evaluated for impairment	402	2,713
Allocated to loans collectively evaluated for impairment	9,172	6,803
Commercial and industrial | Loans Excluding Unfunded Commitments
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for credit losses, beginning balance	9,516	9,129
Provision for credit losses	408	683
Recoveries	139	265
Less: Charge-offs	2,477	561
Allowance for credit losses, ending balance	9,574	9,516	9,129
Commercial construction
Allowance for Loan and Lease Losses [Roll Forward]
Allocated to loans individually evaluated for impairment	0	0
Allocated to loans collectively evaluated for impairment	4,090	6,129
Commercial construction | Loans Excluding Unfunded Commitments
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for credit losses, beginning balance	6,129	4,149
Provision for credit losses	272	3,280
Recoveries	105	0
Less: Charge-offs	0	1,300
Allowance for credit losses, ending balance	4,090	6,129	4,149
Residential mortgages
Allowance for Loan and Lease Losses [Roll Forward]
Allocated to loans individually evaluated for impairment	161	0
Allocated to loans collectively evaluated for impairment	1,244	1,530
Residential mortgages | Loans Excluding Unfunded Commitments
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for credit losses, beginning balance	1,530	1,195
Provision for credit losses	570	335
Recoveries	0	0
Less: Charge-offs	0	0
Allowance for credit losses, ending balance	1,405	1,530	1,195
Home equity loans and lines
Allowance for Loan and Lease Losses [Roll Forward]
Allocated to loans individually evaluated for impairment	0	0
Allocated to loans collectively evaluated for impairment	465	467
Home equity loans and lines | Loans Excluding Unfunded Commitments
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for credit losses, beginning balance	467	536
Provision for credit losses	85	(114)
Recoveries	71	45
Less: Charge-offs	0	0
Allowance for credit losses, ending balance	465	467	536
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Allocated to loans individually evaluated for impairment	25	18
Allocated to loans collectively evaluated for impairment	298	150
Consumer | Loans Excluding Unfunded Commitments
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for credit losses, beginning balance	168	267
Provision for credit losses	(6)	(102)
Recoveries	9	36
Less: Charge-offs	25	33
Allowance for credit losses, ending balance	$ 323	$ 168	$ 267

ACL for Loans - Prior Period _2

ACL for Loans - Prior Period Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Adversely classified loans to total loans		1.79%
Non-accrual Loans	$ 26,522,000	$ 38,050,000
The ratio of non-accrual loans to total loans	0.91%	1.24%
Total Recorded Investment in Impaired Loans	$ 34,640,000	$ 48,318,000
Interest income that was not recognized on loans that were deem impaired	1,400,000	1,400,000	$ 1,000,000
Total non accruing impaired loans	26,200,000	10,300,000
Impaired non-accrual loans		38,000,000
Total Troubled Debt Restructure (TDR) loans	16,400,000	17,700,000
TDR loans on accrual status	8,600,000	10,300,000
TDR loans included in non-performing loans	7,800,000	7,500,000
Charge-offs associated with new TDRs	0	1,100,000
Allowance for credit losses	47,704,000	$ 44,565,000	$ 33,614,000	$ 33,849,000
Allowance for loan losses to total loans ratio		1.45%
Pass
Financing Receivable, Allowance for Credit Loss [Line Items]
Non-accrual Loans	$ 3,000	$ 137,000

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Gross premises and equipment	$ 101,281	$ 97,098
Less accumulated depreciation	(56,592)	(50,390)
Total premises and equipment, net of accumulated depreciation	44,689	46,708
Depreciation expense	6,200	5,400	$ 4,700
Land and land improvements
Property, Plant and Equipment [Line Items]
Gross premises and equipment	9,090	9,090
Bank premises and leasehold improvements
Property, Plant and Equipment [Line Items]
Gross premises and equipment	53,857	51,312
Computer software and equipment
Property, Plant and Equipment [Line Items]
Gross premises and equipment	14,600	13,953
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Gross premises and equipment	$ 23,734	$ 22,743

Leases - Narrative (Details)

Leases - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021USD ($)property	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Leases [Abstract]
Number of operating leases | property	17
Operating lease expense | $	$ 1.5	$ 1.3	$ 1.4
Weighted average remaining lease term on operating leases	29 years 9 months 18 days	26 years 7 months 6 days
Weighted average discount rate for operating leases	3.48%	3.80%

Leases - Maturities (Details)

Leases - Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2022	$ 1,376
2023	1,403
2024	1,431
2025	1,438
2026	1,449
Thereafter	31,533
Total lease payments	38,630
Less: Imputed interest	15,003
Total lease liability	$ 23,627	$ 17,539

Deposits - Deposit Liabilities

Deposits - Deposit Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Banking and Thrift, Interest [Abstract]
Non-interest checking	$ 1,364,258	$ 1,164,908
Interest-bearing checking	743,587	599,630
Savings	310,244	256,347
Money market	1,355,701	1,210,414
CDs $250,000 or less	154,403	176,895
CDs greater than $250,000	52,046	68,074
Total customer deposits	3,980,239	3,476,268
Brokered deposits	0	74,995
Total deposits	$ 3,980,239	$ 3,551,263

Deposits - Narrative (Details)

Deposits - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Banking and Thrift, Interest [Abstract]
Reciprocal deposits	$ 546,700	$ 508,400
Overdrawn deposits reclassified as loans	$ 472	$ 330
Weighted average remaining life, brokered deposits	6 months

Deposits - Deposit Maturities (

Deposits - Deposit Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Banking and Thrift, Interest [Abstract]
Due in less than twelve months	$ 154,465	$ 265,833
Due in over one year through two years	43,302	37,908
Due in over two years through three years	6,882	12,305
Due in over three years through four years	1,078	3,365
Due in over four years through five years	491	515
Due in over five years	231	38
Total CDs	$ 206,449	$ 319,964

Borrowed Funds and Subordinat_3

Borrowed Funds and Subordinated Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Borrowed funds	$ 5,479	$ 4,774	$ 96,173
Borrowed funds, average rate	1.07%	0.30%	1.86%
Subordinated debt	$ 58,979	$ 73,744	$ 14,872
Subordinated debt, average rate	5.54%	5.69%	6.22%
Total borrowed funds and subordinated debt, amount	$ 64,458	$ 78,518	$ 111,045
Total borrowed funds and subordinated debt, average rate	5.16%	5.36%	2.44%

Borrowed Funds and Subordinat_4

Borrowed Funds and Subordinated Debt Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federal Home Loan Bank, Advances, Maturities Summary, Fixed Rate [Abstract]
FHLB, overnight borrowings	$ 0	$ 0	$ 92,000
FHLB, overnight borrowings, rate	0.00%	0.00%	1.85%
FHLB, borrowings less than one year	$ 2,485	$ 4,316	$ 3,697
FHLB, borrowings less than one year, rate	0.29%	0.33%	2.22%
FHLB, borrowings greater than five years	$ 2,994	$ 458	$ 476
FHLB, borrowings greater than five years, rate	1.70%	0.00%	0.00%

Borrowed Funds and Subordinat_5

Borrowed Funds and Subordinated Debt - Narrative (Details) - USD ($) $ in Thousands	Jul. 07, 2020	Jan. 31, 2015	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Maximum FHLB and other borrowings outstanding at any month end			$ 8,600	$ 96,200	$ 96,200
Subordinated debt			58,979	73,744	14,872
Loss on extinguishment of subordinated debt			713	$ 0	$ 0
Fixed-to Floating Rate Subordinated Notes
Debt Instrument [Line Items]
Subordinated debt	$ 60,000	$ 15,000
Subordinated debt, term	10 years	15 years
Subordinated debt, rate	5.25%
Original debt issuance costs	$ 1,200
Loss on extinguishment of subordinated debt		$ 713
Prepayment penalties		600
Unamortized issuance costs		$ 113
Line of credit | FHLB
Debt Instrument [Line Items]
Remaining borrowing capacity at FHLB			790,000
Line of credit | Federal Reserve Bank of Boston | Federal Reserve Bank Discount Window
Debt Instrument [Line Items]
Current borrowing capacity at FRB			$ 350,000

Borrowed Funds and Subordinat_6

Borrowed Funds and Subordinated Debt - Average Balances (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
FHLB advances, average balance	$ 7,632	$ 35,762	$ 15,885
FHLB advances, average rate	0.79%	1.65%	2.42%
FRB PPFL advances, average balance	0.00%	0.35%	0.00%
FRB PPFL advances, average rate	$ 0	$ 4,703	$ 0
Other borrowings, average balance	$ 0	$ 14	$ 55
Other borrowings, average rate	0.00%	1.07%	2.64%
Total borrowed funds, average balance	$ 7,632	$ 40,479	$ 15,940
Total borrowed funds, average rate	0.79%	1.50%	2.42%

Derivatives and Hedging Activ_3

Derivatives and Hedging Activities - Derivatives, Fair Value and Classification (Details) - Interest-rate swaps - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Asset Notional Amount	$ 36,263	$ 38,027
Asset Derivative	528	2,286
Liability Notional Amount	36,263	38,027
Liability Derivatives	528	2,286
Cash Flow Hedging
Derivative [Line Items]
Asset Notional Amount		0
Asset Derivative		0
Liability Notional Amount		75,000
Liability Derivatives		2,814
Pay Floating Receive Fixed
Derivative [Line Items]
Asset Notional Amount	36,263	38,027
Asset Derivative	528	2,286
Liability Notional Amount	0	0
Liability Derivatives	0	0
Pay Fixed, Receive Floating
Derivative [Line Items]
Asset Notional Amount	0	0
Asset Derivative	0	0
Liability Notional Amount	36,263	38,027
Liability Derivatives	$ 528	2,286
Pay Fixed, Receive Floating | Cash Flow Hedging
Derivative [Line Items]
Asset Notional Amount		0
Asset Derivative		0
Liability Notional Amount		75,000
Liability Derivatives		$ 2,814

Derivatives and Hedging Activ_4

Derivatives and Hedging Activities - Narrative (Details)	Aug. 31, 2021USD ($)	Dec. 31, 2021USD ($)derivativeInstrumentloan	Dec. 31, 2020USD ($)derivativeInstrumentloan	Dec. 31, 2019USD ($)
Derivative [Line Items]
Loss on termination of swaps		$ (1,847,000)	$ 0	$ 0
Interest rate derivative liabilities, at fair value		$ 528,000
Number of participation loans with swap contingent liabilities | loan		1	1
Interest-rate swaps
Derivative [Line Items]
Number of interest rate swaps | derivativeInstrument		10	10
Gain (Loss) on interest rate swaps		$ 0	$ 0	$ 0
Counterparty credit risk exposure on interest rate swaps		0	0
Collateral posted for interest-rate swaps		840,000	$ 5,300,000
Interest-rate swaps | Cash Flow Hedging
Derivative [Line Items]
Derivative, individual notional amount		$ 25,000,000
Derivative, notional amount	$ 75,000,000
Loss on termination of swaps	$ (1,800,000)
Interest-rate swaps | Cash Flow Hedging | Contract one
Derivative [Line Items]
Derivative, term of contract		3 years
Interest-rate swaps | Cash Flow Hedging | Contract two
Derivative [Line Items]
Derivative, term of contract		4 years
Interest-rate swaps | Cash Flow Hedging | Contract three
Derivative [Line Items]
Derivative, term of contract		5 years

Commitments, Contingencies an_3

Commitments, Contingencies and Financial Instruments with Off-Balance Sheet Risk and Concentrations of Credit Risk (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)payment	Dec. 31, 2020USD ($)
Other Commitments [Line Items]
Commitments to originate loans	$ 38,653	$ 22,957
Commitments to sell residential mortgage loans	0	3,493
Letters of credit	23,164	28,038
Residential mortgages
Other Commitments [Line Items]
Commitments to originate residential mortgages loans for sale	$ 0	3,121
Early payment default period | payment	4
Commercial real estate
Other Commitments [Line Items]
Unadvanced portions	$ 22,035	14,935
Commercial and industrial
Other Commitments [Line Items]
Unadvanced portions	565,921	530,525
Commercial and residential construction
Other Commitments [Line Items]
Unadvanced portions	325,348	228,309
Home equity loans and lines
Other Commitments [Line Items]
Unadvanced portions	126,651	118,686
Consumer Loan
Other Commitments [Line Items]
Unadvanced portions	$ 4,263	$ 4,269

Comprehensive (Loss) Income - R

Comprehensive (Loss) Income - Reconciliation of Changes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net change in fair value, after reclassifications, pre tax	$ (22,391)	$ 14,800
Net change in fair value , after reclassification, tax	4,860	(3,117)
Total other comprehensive (loss) income, net of tax	(17,531)	11,683
Unrealized Gains (Losses) on Debt Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Change in fair value, before reclassifications, pre tax	(25,077)	17,841
Change in fair value, before reclassifications, tax benefit (expense)	5,622	(3,958)
Change in fair value, before reclassifications, net of tax	(19,455)	13,883
Reclassification, pre tax	128	227
Reclassification, tax benefit (expense)	(29)	(50)
Reclassifications, net of tax	99	177
Net change in fair value, after reclassifications, pre tax	(25,205)	17,614
Net change in fair value , after reclassification, tax	5,651	(3,908)
Total other comprehensive (loss) income, net of tax	(19,554)	13,706
Unrealized Gains (Losses) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Change in fair value, before reclassifications, pre tax	378	(3,328)
Change in fair value, before reclassifications, tax benefit (expense)	(106)	935
Change in fair value, before reclassifications, net of tax	272	(2,393)
Reclassification, pre tax	(2,436)	(514)
Reclassification, tax benefit (expense)	685	144
Reclassifications, net of tax	(1,751)	(370)
Net change in fair value, after reclassifications, pre tax	2,814	(2,814)
Net change in fair value , after reclassification, tax	(791)	791
Total other comprehensive (loss) income, net of tax	$ 2,023	$ (2,023)

Comprehensive (Loss) Income - A

Comprehensive (Loss) Income - AOCI Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning	$ 334,426	$ 296,641
Total other comprehensive (loss) income, net	(17,531)	11,683
Balance, ending	346,895	334,426
Unrealized Gains (Losses) on Debt Securities
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning	24,216	10,510
Total other comprehensive (loss) income, net	(19,554)	13,706
Balance, ending	4,662	24,216
Unrealized Gains (Losses) on Cash Flow Hedges
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning	(2,023)	0
Total other comprehensive (loss) income, net	2,023	(2,023)
Balance, ending	0	(2,023)
Total
Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning	22,193	10,510
Balance, ending	$ 4,662	$ 22,193

Shareholders' Equity - Narrativ

Shareholders' Equity - Narrative (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)vote$ / sharesshares	Dec. 31, 2020USD ($)$ / sharesshares	Dec. 31, 2019USD ($)shares	Dec. 31, 2018shares
Class of Stock [Line Items]
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, par value (in usd per share) | $ / shares	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	12,038,382	11,937,795
Common stock, shares outstanding (in shares)	12,038,382	11,937,795
Common stock, voting rights, votes per share | vote	1
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, par value (in usd per share) | $ / shares	$ 0.01	$ 0.01
Preferred stock, shares issued (in shares)	0	0
Common stock issued under direct stock purchase plan, value | $	$ 13	$ 44	$ 48
Basel III additional capital conservation buffer at full phase-in	2.50%	2.50%
Common stock dividend declared | $	$ 8,877	$ 8,322	7,540
Common stock issued under dividend reinvestment plan | $	1,250	1,217	1,169
Retained Earnings
Class of Stock [Line Items]
Common stock dividend declared | $	$ 8,877	$ 8,322	$ 7,540
Common Stock
Class of Stock [Line Items]
Common stock, shares outstanding (in shares)	12,038,382	11,937,795	11,825,331	11,708,218
Common stock issued under direct stock purchase plan (in shares)	407	1,869	1,609
Common stock issued under dividend reinvestment plan, shares	36,651	50,506	39,176
Series A Junior Participating Preferred Stock
Class of Stock [Line Items]
Price per one one-hundredth of a share | $ / shares	$ 122.50
Minimum acquisition percentage to trigger the exercise of the right to purchase	10.00%

Shareholders' Equity - Regulato

Shareholders' Equity - Regulatory Capital Requirements (Details) $ in Thousands	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital to RWA, actual, amount	$ 435,328	$ 415,999
Total capital to RWA, actual, ratio	0.1373	0.1462
Total capital to RWA, minimum capital for capital adequacy purposes, amount	$ 253,610	$ 227,631
Total capital to RWA, minimum capacity for adequacy purposes, ratio	0.0800	0.0800
Tier 1 Capital to RWA, actual, amount	$ 336,577	$ 306,577
Tier 1 capital to RWA, actual, ratio	0.1062	0.1077
Tier 1 capital to RWA, minimum capital for capital adequacy purposes, amount	$ 190,208	$ 170,723
Tier 1 capital to RWA, minimum capacity for capital adequacy purposes, ratio	0.0600	0.0600
Tier 1 capital to AA leverage ratio, actual, amount	$ 336,577	$ 306,577
Tier 1 capital to AA leverage ratio, actual, ratio	0.0756	0.0752
Tier 1 capital to AA leverage ratio, minimum capital for capital adequacy purposes, amount	$ 177,978	$ 163,127
Tier 1 capital to AA leverage ratio, minimum capacity for capital adequacy purposes, ratio	0.0400	0.0400
Common equity tier 1 capital to RWA, actual, amount	$ 336,577	$ 306,577
Common equity tier 1 capital to RWA, actual, ratio	10.62%	10.77%
Common equity tier 1 capital to RWA, minimum capital for capital adequacy purposes, amount	$ 142,656	$ 128,042
Common equity tier 1 capital to RWA, minimum capital for capital adequacy purposes, ratio	4.50%	4.50%
Basel III additional capital conservation buffer at full phase-in	2.50%	2.50%
The Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital to RWA, actual, amount	$ 434,430	$ 413,862
Total capital to RWA, actual, ratio	0.1370	0.1455
Total capital to RWA, minimum capital for capital adequacy purposes, amount	$ 253,610	$ 227,631
Total capital to RWA, minimum capacity for adequacy purposes, ratio	0.0800	0.0800
Total capital to RWA, minimum capital to be well capitalized, amount	$ 317,013	$ 284,538
Total Capital to RWA, minimum capital to be well capitalized, ratio	0.1000	0.1000
Tier 1 Capital to RWA, actual, amount	$ 394,658	$ 378,184
Tier 1 capital to RWA, actual, ratio	0.1245	0.1329
Tier 1 capital to RWA, minimum capital for capital adequacy purposes, amount	$ 190,208	$ 170,723
Tier 1 capital to RWA, minimum capacity for capital adequacy purposes, ratio	0.0600	0.0600
Tier 1 capital to RWA, minimum capital to be well capitalized, amount	$ 253,610	$ 227,631
Tier 1 capital to RWA, minimum capital to be well capitalized, ratio	0.0800	0.0800
Tier 1 capital to AA leverage ratio, actual, amount	$ 394,658	$ 378,184
Tier 1 capital to AA leverage ratio, actual, ratio	0.0887	0.0927
Tier 1 capital to AA leverage ratio, minimum capital for capital adequacy purposes, amount	$ 177,978	$ 163,127
Tier 1 capital to AA leverage ratio, minimum capacity for capital adequacy purposes, ratio	0.0400	0.0400
Tier 1 capital to AA leverage ratio, minimum capital to be well capitalized, amount	$ 222,473	$ 203,909
Tier 1 capital to AA leverage ratio, minimum capital to be well capitalized, ratio	0.0500	0.0500
Common equity tier 1 capital to RWA, actual, amount	$ 394,658	$ 378,184
Common equity tier 1 capital to RWA, actual, ratio	12.45%	13.29%
Common equity tier 1 capital to RWA, minimum capital for capital adequacy purposes, amount	$ 142,656	$ 128,042
Common equity tier 1 capital to RWA, minimum capital for capital adequacy purposes, ratio	4.50%	4.50%
Common equity tier 1 capital to RWA, minimum capital to be well capitalized, amount	$ 206,058	$ 184,950
Common equity tier 1 capital to RWA, minimum capital to be well capitalized, ratio	6.50%	6.50%

Shareholders' Equity - Basel II

Shareholders' Equity - Basel III Minimum Capital Adequacy Requirements after Full Phase In (Details)	Dec. 31, 2021	Dec. 31, 2020
Basel III Minimum for Capital Adequacy Purposes
Total Capital to RWA	0.0800	0.0800
Tier 1 Capital to RWA	0.0600	0.0600
Tier 1 Capital to AA, or Leverage Ratio	0.0400	0.0400
Common equity tier 1 capital to RWA	4.50%	4.50%
Basel III Additional Capital Conservation Buffer
Basel III additional capital conservation buffer at full phase-in	2.50%	2.50%
Basel III "Adequate" Ratio with Capital Conservation Buffer
Total Capital to RWA	10.50%
Tier 1 Capital to RWA	8.50%
Tier 1 Capital to AA, or Leverage Ratio	4.00%
Common equity tier 1 capital to RWA	7.00%

Employee Benefit Plans - Define

Employee Benefit Plans - Defined Contribution Plans Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Contribution Plan Disclosure [Line Items]
Company's percent match on 401(k) defined contribution plan	70.00%	70.00%	70.00%
Maximum percentage of employee contribution matched by the Company	6.00%	6.00%	6.00%
Minimum age to be eligible for 401(k) plan	18 years
Number of minimum hours required to work for 401(k) plan eligibility	1 hour
Employer's matching contribution, annual vesting percentage for 401(k) plan	25.00%
Number of years to be fully vested for 401(k) plan	4 years
Defined contribution plan, expense	$ 1,700	$ 1,600	$ 1,500
Supplemental Employee Retirement Plan
Defined Contribution Plan Disclosure [Line Items]
Defined contribution plan, expense	$ 611	$ 249

Employee Benefit Plans - Supple

Employee Benefit Plans - Supplemental Employee Retirement Plan (SERP) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021USD ($)officer
Defined Benefit Plan Disclosure [Line Items]
Number of active executive officers under plan	2
Number of former executive officers under plan	1
Term of SERP benefits	20 years
Accrual for benefit obligation for following year | $	$ 53

Employee Benefit Plans - Change

Employee Benefit Plans - Changes in Projected Benefit Obligations for SERP (Details) - Supplemental Employee Retirement Plan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	$ 1,923	$ 2,064	$ 2,174
Net periodic benefit cost:
Interest cost	61	61	84
Actuarial loss (gain)	0	74	82
Total net period cost	61	135	166
Benefits paid	(276)	(276)	(276)
Benefit obligation at end of year	1,708	1,923	2,064
Funded status:
Accrued liability as of December 31	$ (1,708)	$ (1,923)	$ (2,064)
Discount rate used for benefit obligation	3.25%	3.25%	4.00%

Employee Benefit Plans - Expect

Employee Benefit Plans - Expected Future Benefit Payments for SERP (Details) $ in Thousands	Dec. 31, 2021USD ($)
Retirement Benefits [Abstract]
2022	$ 276
2023	276
2024	276
2025	276
2026	276
2027-2031	$ 560

Employee Benefit Plans - Supp_2

Employee Benefit Plans - Supplemental Life Insurance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net periodic benefit cost:
Accrual for benefit obligation for following year	$ 53
Supplemental Life Insurance Benefit
Other Post Retirement Benefit Plan Disclosures [Line Items]
Benefit obligation at beginning of year	2,631	$ 2,424	$ 2,084
Net periodic benefit cost:
Service cost	(23)	(21)	(16)
Interest cost	83	87	95
Actuarial loss (gain)	(71)	141	261
Total net period cost	(11)	207	340
Benefit obligation at end of year	2,620	2,631	2,424
Accrued liability as of December 31	$ (2,620)	$ (2,631)	$ (2,424)
Discount rate used for benefit obligation	3.25%	3.25%	4.00%
Accrual for benefit obligation for following year	$ 117

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Options, Stock Awards, and Stock in Lieu of Directors' Fees (Details)	1 Months Ended			12 Months Ended
	Jan. 31, 2022shares	Jan. 31, 2021shares	Jan. 31, 2020shares	Dec. 31, 2021USD ($)plan$ / sharesshares	Dec. 31, 2020USD ($)$ / shares	Dec. 31, 2019USD ($)$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of active individual stock incentive plans | plan				1
Shares remained available for future grants (in shares) | shares				507,699
Stock-based compensation expense				$ 2,060,000	$ 1,905,000	$ 1,872,000
Tax benefit recognized related to stock-based compensation expense				579,000	535,000	526,000
Tax expense (benefit) from stock compensation				$ (85,000)	25,000	(137,000)
Price as a percentage of fair market value that stock options may not be granted below				100.00%
Percentage of ownership of common stock by participants that if greater causes greater grant price				10.00%
Price as a percentage of fair market value that stock options may not be granted below for anyone who owns more than 10% common stock				110.00%
Expiration period of options granted for those who own more than 10% common stock				5 years
Vested and exercisable options in-the-money (in shares) | shares				128,203
Net proceeds from exercise of stock options				$ 159,000	21,000	185,000
Total intrinsic value of options exercised				173,000	8,000	659,000
Cash paid by the Company to net settle employee taxes on restricted stock and options				346,000	233,000	402,000
Fair value of options vested				171,000	216,000	187,000
Fair value of restricted stock awards vested				1,700,000	1,300,000	$ 1,200,000
Fair market share price (in usd per share) | $ / shares						$ 30.35
Non-Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit recognized related to stock-based compensation expense				71,000	80,000	$ 71,000
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense				187,000	190,000	190,000
Tax benefit recognized related to stock-based compensation expense				$ 52,000	$ 53,000	$ 54,000
Term in years				10 years	10 years	10 years
Cash paid by the Company to net settle employee taxes on restricted stock and options				$ 16,000	$ 0	$ 157,000
Unrecognized stock-based compensation expense				$ 342,000
Remaining vesting period unrecognized compensation expense is to be recognized				2 years 6 months
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash paid by the Company to net settle employee taxes on restricted stock and options				$ 330,000	233,000	245,000
Unrecognized stock-based compensation expense				$ 2,000,000
Remaining vesting period unrecognized compensation expense is to be recognized				2 years 2 months 12 days
Restricted Stock | Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				4 years
Restricted Stock | Non-Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				2 years
Restricted Stock and Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense				$ 1,600,000	1,400,000	1,400,000
Tax benefit recognized related to stock-based compensation expense				456,000	402,000	401,000
Common stock in Lieu of Cash | Non-Employee Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense				$ 252,000	$ 286,000	$ 253,000
Number of shares issued in lieu of cash to directors (in shares) | shares		11,532	8,346
Common stock in Lieu of Cash | Non-Employee Director | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued in lieu of cash to directors (in shares) | shares	7,375
Quarterly Average
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair market share price (in usd per share) | $ / shares				$ 34.14	$ 24.77
Vesting, Year Two | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, vesting percentage				50.00%
Vesting, Year Four | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted, vesting percentage				50.00%

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Options Granted (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted (in shares)	17,580	24,208	23,218
Weighted average assumptions used in the fair value model:
Weighted average market price on date of grants (in usd per share)	$ 32.73
Per share weighted average fair value (in usd per share)	$ 11.95
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term in years	10 years	10 years	10 years
Weighted average assumptions used in the fair value model:
Fair value as a percentage of market value at grant date	36.00%	30.00%	29.00%
Weighted Average | Stock options
Weighted average assumptions used in the fair value model:
Expected volatility	44.00%	37.00%	33.00%
Expected dividend yield	3.01%	3.43%	2.75%
Expected life in years	6 years 6 months	6 years 6 months	6 years 6 months
Risk-free interest rate	1.28%	1.02%	2.58%
Weighted average market price on date of grants (in usd per share)	$ 32.73	$ 28.22	$ 29.84
Per share weighted average fair value (in usd per share)	$ 11.95	$ 8.41	$ 8.70

Stock-Based Compensation - St_2

Stock-Based Compensation - Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Options
Outstanding, beginning balance (in shares)	181,302
Granted (in shares)	17,580	24,208	23,218
Exercised (in shares)	11,347
Forfeited/Expired, (in shares)	643
Outstanding, ending balance (in shares)	186,892	181,302
Vested and Exercisable, ending balance (in shares)	128,203
Weighted Average Exercise Price Per Share
Outstanding, beginning balance (in usd per share)	$ 24.07
Granted (in usd per share)	32.73
Exercised (in usd per share)	20.16
Forfeited/Expired (in usd per share)	30.24
Outstanding, ending balance (in usd per share)	25.10	$ 24.07
Vested and Exercisable, ending balance (in shares)	$ 22.60
Weighted Average Remaining Life in Years
Outstanding (in years)	4 years 10 months 24 days	5 years 3 months 18 days
Vested and Exercisable, ending balance (in years)	3 years 4 months 24 days
Aggregate Intrinsic Value
Outstanding	$ 3,704	$ 627
Vested and Exercisable, ending balance (in shares)	$ 2,861

Stock-Based Compensation - Su_2

Stock-Based Compensation - Summary of Unvested Options (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Options
Unvested, beginning balance (in shares)	59,244
Granted (in shares)	17,580	24,208	23,218
Vested (in shares)	17,528
Forfeited (in shares)	607
Unvested, ending balance (in shares)	58,689	59,244
Weighted Average Grant Date Fair Value
Unvested, beginning balance (in usd per share)	$ 9.27
Granted (in usd per share)	11.95
Vested (in usd per share)	9.73
Forfeited (in usd per share)	9.63
Unvested, ending balance (in usd per share)	$ 9.93	$ 9.27

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Stock Grants (Details) - Restricted Stock - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards in the period (in shares)	53,975	59,311	55,198
Weighted average grant date fair value (in usd per share)	$ 32.73	$ 28.22	$ 29.84
Non-Employee Director | Two-year vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards in the period (in shares)	8,109	8,295	8,368
Employee | Four-year vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards in the period (in shares)	24,307	26,015	22,403
Employee | Performance-based vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards in the period (in shares)	21,559	25,001	24,427

Stock-Based Compensation - Re_2

Stock-Based Compensation - Restricted Stock Award Activity and Weighted Average Price (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restricted Stock
Unvested, beginning balance (in shares)	116,174
Unvested, ending balance (in shares)	113,871	116,174
Restricted Stock
Restricted Stock
Unvested, beginning balance (in shares)	116,174
Granted (in shares)	53,975	59,311	55,198
Vested/released (in shares)	53,960
Forfeited (in shares)	2,318
Unvested, ending balance (in shares)	113,871	116,174
Weighted Average Grant Price Per Share
Unvested, beginning balance (in usd per share)	$ 29.70
Granted (in usd per share)	32.73	$ 28.22	$ 29.84
Vested/released (in usd per share)	30.78
Forfeited (in usd per share)	30.61
Unvested, ending balance (in usd per share)	$ 30.61	$ 29.70

Income Taxes - Components of In

Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current expense:
Federal	$ 10,786	$ 11,305	$ 7,728
State	3,771	4,542	3,028
Total current expense	14,557	15,847	10,756
Deferred benefit:
Federal	(945)	(3,940)	(339)
State	(25)	(1,735)	(36)
Total deferred benefit	(970)	(5,675)	(375)
Total income tax expense	$ 13,587	$ 10,172	$ 10,381

Income Taxes - Effective Income

Income Taxes - Effective Income Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Computed income tax expense at statutory rate	$ 11,709	$ 8,742	$ 9,362
State income taxes, net of federal tax benefit	2,959	2,218	2,364
Tax-exempt income, net of disallowance	(832)	(865)	(894)
Bank-owned life insurance income, net	(172)	(123)	(134)
Tax expense (benefit) from stock compensation	(85)	25	(137)
Other	8	175	(180)
Total income tax expense	$ 13,587	$ 10,172	$ 10,381
Effective income tax rate	24.40%	24.40%	23.30%

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Income Taxes [Line Items]
Total income taxes paid, net	$ 12,335,000	$ 17,672,000	$ 10,557,000
Unrecognized tax benefits	0	0
Federal Low Income Housing Tax Credit
Schedule of Income Taxes [Line Items]
Tax credit carryforward recognized during period	71,000	$ 71,000	$ 71,000
Anticipated additional tax credits	$ 36,000
Number of years tax credit to be realized over	1 year

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Asset and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax asset:
Allowance for Credit Losses	$ 14,277	$ 12,415
Depreciation	2,454	2,174
Supplemental employee retirement plans	794	717
Deferred compensation and benefits	2,799	291
Non-accrual interest	699	610
Stock-based compensation expense	667	662
Lease liability	6,562	4,886
Cashflow hedge swap	0	791
Deferred fees on PPP loans	689	2,808
Other	820	13
Total	29,761	25,367
Deferred tax liability:
Goodwill	1,571	1,576
Net unrealized gains on equity securities	80	31
Net unrealized gains on debt securities	1,245	6,896
Deferred origination costs	612	645
Lease ROU asset	6,562	4,886
Other	47	43
Total	10,117	14,077
Net deferred tax asset	$ 19,644	$ 11,290

Earnings per share - Weighted A

Earnings per share - Weighted Average Number of Shares (Details) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Basic weighted average common shares outstanding (in shares)	12,005,838	11,897,813	11,789,570
Dilutive shares (in shares)	45,455	21,695	40,248
Diluted weighted average common shares outstanding (in shares)	12,051,293	11,919,508	11,829,818

Earnings per share - Narrative

Earnings per share - Narrative (Details) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Antidilutive shares excluded from EPS (in shares)	31,677	75,870	52,219
Unvested participating restricted stock awards (in shares)	113,871	116,174

Fair Value Measurements - Recur

Fair Value Measurements - Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Measurements, Recurring | Level 1 | Interest-rate swaps
Liabilities measured on a recurring basis:
Fair value of liabilities	$ 0	$ 0
Fair Value, Measurements, Recurring | Level 1 | Debt securities
Assets measured on a recurring and non-recurring basis
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Equity securities
Assets measured on a recurring and non-recurring basis
Fair value of assets	1,785	746
Fair Value, Measurements, Recurring | Level 1 | FHLB Stock
Assets measured on a recurring and non-recurring basis
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Level 1 | Interest-rate swaps | Interest-rate swaps
Assets measured on a recurring and non-recurring basis
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Level 2 | Interest-rate swaps
Liabilities measured on a recurring basis:
Fair value of liabilities	528	5,100
Fair Value, Measurements, Recurring | Level 2 | Debt securities
Assets measured on a recurring and non-recurring basis
Fair value of assets	956,430	582,303
Fair Value, Measurements, Recurring | Level 2 | Equity securities
Assets measured on a recurring and non-recurring basis
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Level 2 | FHLB Stock
Assets measured on a recurring and non-recurring basis
Fair value of assets	2,164	1,905
Fair Value, Measurements, Recurring | Level 2 | Interest-rate swaps | Interest-rate swaps
Assets measured on a recurring and non-recurring basis
Fair value of assets	528	2,286
Fair Value, Measurements, Recurring | Level 3 | Interest-rate swaps
Liabilities measured on a recurring basis:
Fair value of liabilities	0	0
Fair Value, Measurements, Recurring | Level 3 | Debt securities
Assets measured on a recurring and non-recurring basis
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Equity securities
Assets measured on a recurring and non-recurring basis
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Level 3 | FHLB Stock
Assets measured on a recurring and non-recurring basis
Fair value of assets	0	0
Fair Value, Measurements, Recurring | Level 3 | Interest-rate swaps | Interest-rate swaps
Assets measured on a recurring and non-recurring basis
Fair value of assets	0	0
Fair Value, Measurements, Nonrecurring | Level 1
Assets measured on a recurring and non-recurring basis
Individually evaluated loans (collateral dependent)	0	0
Fair Value, Measurements, Nonrecurring | Level 2
Assets measured on a recurring and non-recurring basis
Individually evaluated loans (collateral dependent)	0	0
Fair Value, Measurements, Nonrecurring | Level 3
Assets measured on a recurring and non-recurring basis
Individually evaluated loans (collateral dependent)	15,210	18,733
Fair Value | Fair Value, Measurements, Recurring | Interest-rate swaps
Liabilities measured on a recurring basis:
Fair value of liabilities	528	5,100
Fair Value | Fair Value, Measurements, Recurring | Debt securities
Assets measured on a recurring and non-recurring basis
Fair value of assets	956,430	582,303
Fair Value | Fair Value, Measurements, Recurring | Equity securities
Assets measured on a recurring and non-recurring basis
Fair value of assets	1,785	746
Fair Value | Fair Value, Measurements, Recurring | FHLB Stock
Assets measured on a recurring and non-recurring basis
Fair value of assets	2,164	1,905
Fair Value | Fair Value, Measurements, Recurring | Interest-rate swaps | Interest-rate swaps
Assets measured on a recurring and non-recurring basis
Fair value of assets	528	2,286
Fair Value | Fair Value, Measurements, Nonrecurring
Assets measured on a recurring and non-recurring basis
Individually evaluated loans (collateral dependent)	$ 15,210	$ 18,733

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Specific allowance for collateral dependent impaired loans	$ 1	$ 5.8
Letter of Credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortization period of estimated fair value on letters of credit	1 year

Fair Value Measurements - Quant

Fair Value Measurements - Quantitative (Details) - Fair Value, Measurements, Nonrecurring - Level 3 - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually evaluated loans (collateral dependent)	$ 15,210	$ 18,733
Individually evaluated loans (collateral dependent) | Appraisal of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Individually evaluated loans (collateral dependent)	$ 15,210	$ 18,733
Appraisal adjustments | Individually evaluated loans (collateral dependent) | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, collateral dependent, unobservable input value or range	15.00%
Appraisal adjustments | Individually evaluated loans (collateral dependent) | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired loans, collateral dependent, unobservable input value or range	50.00%

Fair Value Measurements - Balan

Fair Value Measurements - Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Carrying Amount
Financial assets:
Loans, net	$ 2,872,980	$ 3,029,295
Loans held for sale		371
Financial liabilities:
Borrowed funds	5,479	4,774
Subordinated debt	58,979	73,744
Carrying Amount | CDs
Financial liabilities:
Deposits	206,449	244,969
Carrying Amount | Brokered deposits
Financial liabilities:
Deposits		74,995
Fair Value
Financial assets:
Loans, net	2,922,947	3,064,791
Loans held for sale		372
Financial liabilities:
Borrowed funds	5,121	4,684
Subordinated debt	58,460	76,769
Fair Value | CDs
Financial liabilities:
Deposits	206,450	246,498
Fair Value | Brokered deposits
Financial liabilities:
Deposits		76,652
Level 1
Financial assets:
Loans, net	0	0
Loans held for sale		0
Financial liabilities:
Borrowed funds	0	0
Subordinated debt	0	0
Level 1 | CDs
Financial liabilities:
Deposits	0	0
Level 1 | Brokered deposits
Financial liabilities:
Deposits		0
Level 2
Financial assets:
Loans, net	0	0
Loans held for sale		372
Financial liabilities:
Borrowed funds	5,121	4,684
Subordinated debt	58,460	76,769
Level 2 | CDs
Financial liabilities:
Deposits	206,450	246,498
Level 2 | Brokered deposits
Financial liabilities:
Deposits		76,652
Level 3
Financial assets:
Loans, net	2,922,947	3,064,791
Loans held for sale		0
Financial liabilities:
Borrowed funds	0	0
Subordinated debt	0	0
Level 3 | CDs
Financial liabilities:
Deposits	$ 0	0
Level 3 | Brokered deposits
Financial liabilities:
Deposits		$ 0

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Supplemental financial data:
Cash paid for: interest	$ 7,880	$ 13,612	$ 21,384
Cash paid for: income taxes	12,335	17,672	10,557
Cash paid for: lease liability	1,251	1,242	1,205
Supplemental schedule of non-cash activity:
Net purchases of investment securities not yet settled	0	0	810
Transfer from loans to other real estate owned	2,400	0	255
ROU lease assets: operating leases	$ 6,608	$ 27	$ 19,635

Condensed Parent Company Only_3

Condensed Parent Company Only Financial Statements - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets
Total assets	$ 4,447,819	$ 4,014,324
Liabilities
Subordinated debt	58,979	73,744	$ 14,872
Accrued interest payable	1,537	1,940
Other liabilities	31,063	30,638
Total liabilities	4,100,924	3,679,898
Shareholders' Equity
Preferred stock, $0.01 par value per share; 1,000,000 shares authorized; no shares issued	0	0
Common stock $0.01 par value per share; 40,000,000 shares authorized; 12,038,382 and 11,937,795 shares issued and outstanding, respectively	120	119
Additional paid-in capital	100,352	97,137
Retained earnings	241,761	214,977
Accumulated other comprehensive income	4,662	22,193
Total shareholders' equity	346,895	334,426	$ 296,641	$ 255,297
Total liabilities and shareholders' equity	4,447,819	4,014,324
Parent
Assets
Cash	1,981	3,302
Investment in subsidiaries	404,975	406,032
Other assets	365	430
Total assets	407,321	409,764
Liabilities
Subordinated debt	58,979	73,744
Accrued interest payable	1,444	1,591
Other liabilities	3	3
Total liabilities	60,426	75,338
Shareholders' Equity
Preferred stock, $0.01 par value per share; 1,000,000 shares authorized; no shares issued	0	0
Common stock $0.01 par value per share; 40,000,000 shares authorized; 12,038,382 and 11,937,795 shares issued and outstanding, respectively	120	119
Additional paid-in capital	100,352	97,137
Retained earnings	241,761	214,977
Accumulated other comprehensive income	4,662	22,193
Total shareholders' equity	346,895	334,426
Total liabilities and shareholders' equity	$ 407,321	$ 409,764

Condensed Parent Company Only_4

Condensed Parent Company Only Financial Statements - Balance Sheet Additional (Details) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Preferred stock, par value (in usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares issued (in shares)	12,038,382	11,937,795
Common stock, shares outstanding (in shares)	12,038,382	11,937,795
Parent
Condensed Financial Statements, Captions [Line Items]
Preferred stock, par value (in usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	40,000,000	40,000,000
Common stock, shares issued (in shares)	12,038,382	11,937,795
Common stock, shares outstanding (in shares)	12,038,382	11,937,795

Condensed Parent Company Only_5

Condensed Parent Company Only Financial Statements - Income Statement (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Interest expense	$ 7,477	$ 14,706	$ 21,251
Benefit from income taxes	13,587	10,172	10,381
Net income	42,171	31,456	34,200
Parent
Condensed Financial Statements, Captions [Line Items]
Equity in undistributed net income of subsidiaries	22,985	30,309	29,329
Dividends distributed by subsidiaries	22,350	3,100	5,700
Total income	45,335	33,409	35,029
Interest expense	3,495	2,502	925
Other operating expenses	891	215	226
Total operating expenses	4,386	2,717	1,151
Income before income taxes	40,949	30,692	33,878
Benefit from income taxes	(1,222)	(764)	(322)
Net income	$ 42,171	$ 31,456	$ 34,200

Condensed Parent Company Only_6

Condensed Parent Company Only Financial Statements - Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 42,171	$ 31,456	$ 34,200
Changes in:
Net decrease (increase) in other assets	9,324	(16,997)	136
Net (decrease) increase in other liabilities	(798)	5,223	1,174
Cash flows from financing activities:
Repayment of subordinated debt	(15,600)	0	0
Proceeds from the issuance of subordinated debt	0	60,000	0
Cash dividends paid, net of dividend reinvestment plan	(7,627)	(7,105)	(6,371)
Proceeds from issuance of common stock	59	91	69
Net settlement for employee taxes on restricted stock and options	(346)	(233)	(402)
Net proceeds from exercise of stock options	159	21	185
Cash and cash equivalents at beginning of year	253,782	63,794	63,120
Cash and cash equivalents at end of year	436,576	253,782	63,794
Parent
Cash flows from operating activities:
Net income	42,171	31,456	34,200
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net income of subsidiaries	(22,985)	(30,309)	(29,329)
Payment from subsidiary bank for stock compensation expense	2,094	1,872	1,869
Changes in:
Net decrease (increase) in other assets	66	(229)	(3)
Net (decrease) increase in other liabilities	(25)	385	12
Net cash provided by operating activities	21,321	3,175	6,749
Cash flows from investing activities:
Investment in subsidiary	0	(53,000)	0
Net cash provided by investing activities	0	(53,000)	0
Cash flows from financing activities:
Repayment of subordinated debt	(14,887)	0	0
Proceeds from the issuance of subordinated debt	0	60,000	0
Cash dividends paid, net of dividend reinvestment plan	(7,627)	(7,105)	(6,371)
Proceeds from issuance of common stock	59	91	69
Net settlement for employee taxes on restricted stock and options	(346)	(233)	(402)
Net proceeds from exercise of stock options	159	21	185
Net cash (used in) provided by financing activities	(22,642)	52,774	(6,519)
Net (decrease) increase in cash and cash equivalents	(1,321)	2,949	230
Cash and cash equivalents at beginning of year	3,302	353	123
Cash and cash equivalents at end of year	$ 1,981	$ 3,302	$ 353