Bar Harbor Bankshares (BHB) 10-K 11 Mar 24 2023 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 07, 2024	Jun. 30, 2023
Document and Entity Information
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2023
Entity File Number	001-13349
Entity Registrant Name	BAR HARBOR BANKSHARES
Entity Incorporation, State or Country Code	ME
Entity Tax Identification Number	01-0393663
Entity Address, Address Line One	PO Box 400
Entity Address, Address Line Two	82 Main Street
Entity Address, City or Town	Bar Harbor
Entity Address, State or Province	ME
Entity Address, Postal Zip Code	04609-0400
City Area Code	207
Local Phone Number	669-6784
Title of 12(b) Security	Common Stock, par value $2.00 per share
Trading Symbol	BHB
Security Exchange Name	NYSEAMER
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 Common Stock, Shares Outstanding		15,185,021
Entity Public Float			$ 385,509,568
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Entity Central Index Key	0000743367
Amendment Flag	false
Auditor Name	RSM US LLP
Auditor Location	Hartford, Connecticut
Auditor Firm ID	49
Document Financial Statement Error Correction [Flag]	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Cash and cash equivalents:
Cash and due from banks	$ 42,221	$ 39,933
Interest-earning deposits with other banks	52,621	52,362
Total cash and cash equivalents	94,842	92,295
Securities:
Securities available for sale	534,574	559,516
Federal Home Loan Bank stock	12,788	14,893
Total securities	547,362	574,409
Loans held for sale	2,189	0
Total loans	2,999,049	2,902,690
Less: Allowance for credit losses	(28,142)	(25,860)
Net loans	2,970,907	2,876,830
Premises and equipment, net	48,287	47,622
Goodwill	119,477	119,477
Other intangible assets	4,869	5,801
Cash surrender value of bank-owned life insurance	80,037	81,197
Deferred tax assets, net	22,979	24,443
Other assets	79,936	87,729
Total assets	3,970,885	3,909,803
Deposits:
Demand	569,714	676,350
NOW	946,978	900,730
Savings	553,963	664,514
Money market	370,242	478,398
Time	700,260	323,439
Total deposits	3,141,157	3,043,431
Borrowings:
Senior	271,044	333,957
Subordinated	60,461	60,289
Total borrowings	331,505	394,246
Other liabilities	66,164	78,676
Total liabilities	3,538,826	3,516,353
Shareholders' equity
Capital stock, par value $2.00; authorized 20,000,000 shares; issued 16,428,388 shares; outstanding 15,172,131 shares and 15,082,688 shares at December 31, 2023 and December 31, 2022 respectively	32,857	32,857
Additional paid-in capital	193,114	191,922
Retained earnings	272,101	243,815
Accumulated other comprehensive loss	(49,862)	(58,340)
Less: 1,256,257 and 1,345,700 shares of treasury stock, at cost, at December 31, 2023 and December 31, 2022, respectively	(16,151)	(16,804)
Total shareholders' equity	432,059	393,450
Total liabilities and shareholders' equity	$ 3,970,885	$ 3,909,803

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2023	Dec. 31, 2022
CONSOLIDATED BALANCE SHEETS
Capital stock, par value (in dollars per share)	$ 2	$ 2
Capital stock, shares authorized (in shares)	20,000,000	20,000,000
Capital stock, shares issued (in shares)	16,428,388	16,428,388
Capital stock, shares outstanding (in shares)	15,172,131	15,082,688
Treasury stock (in shares)	1,256,257	1,345,700

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest and dividend income
Loans	$ 149,420	$ 107,797	$ 95,236
Securities and other	24,762	18,729	15,568
Total interest and dividend income	174,182	126,526	110,804
Interest expense
Deposits	38,232	7,344	8,543
Borrowings	18,275	5,501	6,688
Total interest expense	56,507	12,845	15,231
Net interest income	117,675	113,681	95,573
Provision for credit losses	2,908	2,904	(1,302)
Net interest income after provision for credit losses	114,767	110,777	96,875
Non-interest income
Trust and investment management fee income	14,283	14,573	15,179
Customer service fees	15,168	14,791	13,212
Gain on sales of securities, net	34	53	2,870
Mortgage banking income	1,587	1,580	6,536
Bank-owned life insurance income	2,699	2,000	2,179
Customer derivative income	409	310	1,010
Other income	1,649	2,014	1,275
Total non-interest income	35,829	35,321	42,261
Non-interest expense
Salaries and employee benefits	52,516	48,657	47,117
Occupancy and equipment	17,584	17,575	16,356
Loss on sales of premises and equipment, net	182	10	378
Outside services	1,671	1,578	1,943
Professional services	1,586	1,612	1,756
Communication	697	880	912
Marketing	1,696	1,561	1,541
Amortization of intangible assets	932	932	940
Loss on debt extinguishment			2,851
Acquisition, conversion and other expenses	283	266	1,667
Provision for unfunded commitments	(85)	1,758	177
Other expenses	16,417	16,424	14,870
Total non-interest expense	93,479	91,253	90,508
Income before income taxes	57,117	54,845	48,628
Income tax expense	12,265	11,288	9,329
Net income	$ 44,852	$ 43,557	$ 39,299
Earnings per share:
Basic (in dollars per share)	$ 2.96	$ 2.90	$ 2.63
Diluted (in dollars per share)	$ 2.95	$ 2.88	$ 2.61
Weighted average common shares outstanding:
Basic (in shares)	15,142,188	15,040,162	14,968,973
Diluted (in shares)	15,195,236	15,111,961	15,045,162

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME
Net income	$ 44,852	$ 43,557	$ 39,299
Other comprehensive income (loss), before tax:
Changes in unrealized gain (loss) on securities available for sale	9,481	(74,412)	(10,489)
Changes in unrealized gain (loss) on hedging derivatives	1,011	(3,463)	3,562
Changes in unrealized gain (loss) on pension	135	(973)	1,132
Income taxes related to other comprehensive income (loss):
Changes in unrealized (gain) loss on securities available for sale	(1,884)	17,181	2,451
Changes in unrealized (gain) loss on hedging derivatives	(227)	799	(827)
Changes in unrealized (gain) loss on pension	(38)	225	(266)
Total other comprehensive income (loss)	8,478	(60,643)	(4,437)
Total comprehensive income (loss)	$ 53,330	$ (17,086)	$ 34,862

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common stock amount	Additional paid-in capital	Retained earnings Impact of ASC 326 adoption	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock	Impact of ASC 326 adoption	Total
Balance at beginning of period at Dec. 31, 2020	$ 32,857	$ 190,084		$ 195,607	$ 6,740	$ (18,223)		$ 407,065
Increase (Decrease) in Stockholders' Equity
Net income				39,299				39,299
Other comprehensive income (loss)					(4,437)			(4,437)
Cash dividends declared				(14,072)				(14,072)
Net issuance to employee stock plans, including related tax effects		(1,357)				742		(615)
Recognition of stock based compensation		2,149						2,149
Balance at end of period at Dec. 31, 2021	32,857	190,876	$ (5,242)	215,592	2,303	(17,481)	$ (5,242)	424,147
Increase (Decrease) in Stockholders' Equity
Net income				43,557				43,557
Other comprehensive income (loss)					(60,643)			(60,643)
Cash dividends declared				(15,334)				(15,334)
Net issuance to employee stock plans, including related tax effects		(892)				677		(215)
Recognition of stock based compensation		1,938						1,938
Balance at end of period at Dec. 31, 2022	32,857	191,922		243,815	(58,340)	(16,804)		393,450
Increase (Decrease) in Stockholders' Equity
Net income				44,852				44,852
Other comprehensive income (loss)					8,478			8,478
Cash dividends declared				(16,566)				(16,566)
Net issuance to employee stock plans, including related tax effects		(1,458)				653		(805)
Recognition of stock based compensation		2,650						2,650
Balance at end of period at Dec. 31, 2023	$ 32,857	$ 193,114		$ 272,101	$ (49,862)	$ (16,151)		$ 432,059

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY
Cash dividends declared (in dollars per share)	$ 1.10	$ 1.02	$ 0.94
Net issuance (in shares)	89,443	81,359	85,406

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net income	$ 44,852	$ 43,557	$ 39,299
Adjustments to reconcile net income to net cash provided by operating activities:
Net change in loans held for sale	(2,189)	5,523	18,579
Provision for credit losses	2,908	2,904	(1,302)
Net amortization of securities	2,429	2,869	4,471
Deferred tax (benefit) expense	(686)	(707)	427
Change in unamortized net loan costs and premiums	(145)	170	(1,354)
Premises and equipment depreciation	4,177	4,243	4,596
Stock-based compensation expense	2,650	1,938	2,149
Accretion of purchase accounting entries, net			(2,274)
Amortization of other intangibles	932	932	940
Income from cash surrender value of bank-owned life insurance policies	(2,699)	(2,000)	(2,179)
Gain on sales of securities, net	(34)	(53)	(2,870)
Amortization of right-of-use lease assets	1,204	1,196	1,064
Decrease in lease liabilities	(1,179)	(1,142)	(984)
Gain on premises and equipment, net	182	10	378
Net change in other assets and liabilities	(4,999)	(3,531)	(1,772)
Net cash provided by operating activities	47,403	55,909	59,168
Cash flows from investing activities:
Proceeds from sales, maturities, calls and prepayments of securities available for sale	42,184	80,870	204,275
Purchases of securities available for sale	(7,521)	(109,019)	(249,595)
Net change in loans	(96,840)	(370,712)	34,315
Purchase of Federal Home Loan Bank stock	(18,370)	(11,016)	(2,565)
Proceeds from sale of Federal Home Loan Bank stock	20,473	3,507	9,217
Purchase of premises and equipment, net	(6,533)	(2,518)	(1,716)
Proceeds from sale of premises and equipment	413
Proceeds from premises held for sale			288
Proceeds from death benefit of bank-owned life insurance policy	3,904		1,029
Net cash used in investing activities	(62,290)	(408,888)	(4,752)
Cash flows from financing activities:
Net change in deposits	97,726	(5,113)	142,329
Net change in short-term borrowings	(60,604)	235,567	1,347
Repayments of long-term borrowings	(2,317)	(20,020)	(159,023)
Net issuance to employee stock plans	(805)	(215)	(615)
Cash dividends paid on common stock	(16,566)	(15,334)	(14,072)
Net cash provided by financing activities	17,434	194,885	(30,034)
Net change in cash and cash equivalents	2,547	(158,094)	24,382
Cash and cash equivalents at beginning of year	92,295	250,389	226,007
Cash and cash equivalents at end of period	94,842	92,295	250,389
Supplemental cash flow information:
Interest paid	51,973	12,451	16,354
Income taxes paid, net	$ 15,026	$ 10,598	$ 8,859

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2023
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of presentation: Consolidation: Reclassifications: Use of estimates: Subsequent Events: Cash and Cash Equivalents: Securities: Premiums and discounts on securities are amortized and accreted over the term or to first call of the securities using the level yield method. Municipal security premiums are accreted over full term straight-line and discounts are amortized over the call term on a straight light basis. Gains and losses on the sale of securities are recognized at the trade date using the specific-identification method and are shown separately in the Consolidated Statements of Income. Allowance for Credit Loss on AFS Debt Securities: municipality, agency, or organization associated with the underlying security. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance on AFS debt securities is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. When assessing an AFS debt security for credit loss, securities with identical CUSIPs are pooled together to assess for impairment using the average cost basis. Any impairment that has not been recorded through an allowance is recognized in other comprehensive income. A change in the allowance on AFS debt securities may be in full or a portion thereof, is recorded as expense (credit) within provision for credit losses on the consolidated statements of income. Losses are charged against the allowance when management believes an AFS debt security is uncollectible based on the above described analysis. As of December 31, 2023 and December 31, 2022, there were no allowances carried on AFS debt securities. Refer to Note 2 – Securities Available for Sale Federal Home Loan Bank Stock: FHLB stock is periodically evaluated for impairment based on the capital adequacy of the FHLB and its overall financial condition. Based on the capital adequacy, liquidity position and sustained profitability of the FHLB, there was no impairment related to the carrying amount of FHLB stock as of December 31, 2023 and 2022. Loans Held for Sale: Loans: ​ For originated loans, loan fees and certain direct origination costs are deferred and amortized into interest income over the contractual term of the loan using the level-yield method over the estimated lives of the related loans. When a loan is paid off, the unamortized portion of deferred fees or costs are recognized in interest income. Interest income on originated loans is accrued based upon the daily principal amount outstanding except for loans on non-accrual status. ​ For acquired loans, interest income is accrued based upon the daily principal amount outstanding and is then further adjusted by the accretion of any discount or amortization of any premium associated with the loan that was recognized based on the acquisition date fair value. When a loan is paid off, the unamortized portion of any premiums or discounts on loans are recognized in interest income. Purchase Credit Deteriorated (PCD) Loans: Non-performing loans: appropriate by management. Secured consumer other loans are written down to net realizable value and unsecured consumer loans are charged-off upon reaching 120 days past due. Commercial real estate loans and commercial and industrial loans that are 90 days or more past due are generally placed on non-accrual status, unless secured by sufficient cash or other assets immediately convertible to cash, and the loan is in the process of collection. Commercial real estate and commercial and industrial loans may be placed on non-accrual status prior to the 90 days delinquency date if considered appropriate by management. When a loan has been placed on non-accrual status, previously accrued and uncollected interest is reversed against interest on the loan. The interest on non-accrual loans is accounted for using the cash-basis or cost-recovery method depending on corresponding credit risk, until qualifying for return to accrual status. A loan can be returned to accrual status when collectability of principal is reasonably assured and the loan has performed for a period of time, a minimum of six months. Acquired loans that meet the criteria for non-accrual of interest prior to an acquisition are considered non-performing acquired loans that meet the criteria for non-accrual consistent with originated loans. Loan Modifications to Borrowers Experiencing Financial Difficulty: ​ However, performance prior to the modification, or significant events that coincide with the modification, are included in assessing whether the borrower can meet the new terms and may result in the loan being returned to accrual status at the time of loan modification or after a shorter performance period. If the borrower’s ability to meet the revised payment schedule is uncertain, the loan remains on non-accrual status. Allowance for Credit Losses: The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of loans to present the net amount expected to be collected on the loans. Loans, or portions thereof, are charged off against the allowance when they are deemed uncollectible. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged- off. The allowance is comprised of reserves measured on a collective (pool) basis based on a lifetime loss-rate model when similar risk characteristics exist. Loans that do not share risk characteristics are evaluated on an individual basis, which generally includes larger non-accruing commercial loans. ​ The discounted cash flow (“DCF”) method is used to estimate expected credit losses for all loan portfolio segments measured on a collective (pool) basis. For each loan segment, cash flow projections are generated at the instrument level wherein payment expectations are adjusted for estimated prepayment speeds, probability of default, and loss given default. The modeling of prepayment speeds is based on historical internal data. ​ Regression analysis of historical internal and peer data is used to determine suitable loss drivers to utilize when modeling lifetime probability of default. This analysis also determines how expected probability of default and loss given default will react to forecasted levels of the loss drivers. For all loan pools utilizing the DCF method, management utilizes various economic indicators such as changes in unemployment rates, gross domestic product, real estate values, and other relevant factors as loss drivers. For all DCF models, management has determined that due to historic volatility in economic data, two quarters currently represents a reasonable and supportable forecast period, followed by a six-period reversion to historical mean levels for each of the various economic indicators. ​ The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment, curtailment, and time to recovery) produces an expected cash flow stream at the instrument level. Specific instrument effective yields are calculated, net of the impacts of prepayment assumptions, and the instrument expected cash flows are then discounted at that effective yield to produce an instrument-level Net Present Value (“NPV”). An allowance is established for the difference between the instrument’s NPV and amortized cost basis. ​ The allowance evaluation also considers various qualitative factors, such as: (i) changes to lending policies, underwriting standards and/or management personnel performing such functions, (ii) delinquency and other credit quality trends, (iii) credit risk concentrations, if any, (iv) changes to the nature of the Company's business impacting the loan portfolio, and (v) other external factors, that may include, but are not limited to, results of internal loan reviews, stress testing, examinations by bank regulatory agencies, or other events such as a natural disaster. ​ Arriving at an appropriate level of allowance involves a high degree of judgment. The determination of the adequacy of the allowance and provisioning for estimated losses is evaluated regularly based on review of loans, with particular emphasis on non-performing and other loans that management believes warrant special consideration. While management uses available information to recognize losses on loans, changing economic conditions and the economic prospects of the borrowers may necessitate future additions or reductions to the allowance. Individually Evaluated Loans : ​ Accrued Interest Allowance for off-balance sheet credit exposures : Premises and Equipment: estimated useful lives of related assets; generally five three eight years Transfers of Financial Assets: Other Real Estate Owned: Goodwill: ​ Other Intangibles: ​ The fair values of these assets are generally determined based on appraisals and are subsequently amortized on a straight-line basis or an accelerated basis over their estimated lives. Management assesses the recoverability of these intangible assets at least annually or whenever events or changes in circumstances indicate that their carrying value may not be recoverable. If the carrying amount exceeds fair value, an impairment charge is recorded to income. ​ Bank-Owned Life Insurance: Capitalized Servicing Right s : Capitalized servicing rights are initially recorded at fair value. Fair values are established by using a discounted cash flow model to calculate the present value of estimated future net servicing income. Changes in the fair value of capitalized servicing rights are primarily due to changes in valuation inputs, assumptions, and the collection and realization of expected cash flows. However, these capitalized servicing rights are amortized in proportion to and over the period of estimated net servicing income, which includes prepayment assumptions. An impairment analysis is prepared on a quarterly basis by estimating the fair value of the capitalized servicing rights and comparing that value to the carrying amount. A valuation allowance is established when the carrying amount of these capitalized servicing rights exceeds fair value. The capitalized servicing rights are included in other assets on the consolidated balance sheet. Derivative Financial Instruments: Changes in the fair value of derivative instruments that are highly effective and qualify as cash flow hedge are recorded in other comprehensive income (loss). Any ineffective portion is recorded in earnings. For fair value hedges that are highly effective, the gain or loss on the derivative and the loss or gain on the hedged item attributable to the hedged risk are both recognized in earnings, with the differences (if any) representing hedge ineffectiveness. Management discontinues hedge accounting when it is determined that the derivative is no longer highly effective in offsetting changes of the hedged risk on the hedged item, or determines that the designation of the derivative as a hedging instrument is no longer appropriate. Net cash settlements on derivatives that qualify for hedge accounting are recorded in interest income or interest expense based on the item being hedged. Net cash settlements on derivatives that do not quality for hedge accounting are reporting in non-interest income. Cash flows on hedges are classified in the cash flow statement the same as cash flows of the items being hedged. Commitments to fund mortgage loans with borrowers (interest rate locks) and forward commitments for the future delivery of these mortgage loans for sale on the secondary market are classified as free standing derivatives. These derivatives are designed to hedge against inherent interest rate and pricing risk associated with selling loans. The commitments to lend generally terminate once the loan is funded, the lock period expires or the borrower decides not to contract for the loan. The forward commitments generally terminate once the loan is sold or the commitment period expires. These commitments are considered derivatives which are accounted for by recognizing their estimated fair value on the Consolidated Balance Sheet in either other assets or other liabilities. Senior and Subordinated Borrowings: Off-Balance Sheet Financial Instruments: Stock Based Compensation: Stock Based Compensation Plans o Employee Stock Purchase Plan: Post-retirement Plans: Employee Benefit Plans Pension Plan: Employee Benefit Plans Net periodic pension benefit costs include interest costs based on an assumed discount rate, the expected return on plan assets based on actuarially derived market-related values, and the amortization of net actuarial losses. Differences between expected and actual results in each year are included in the net actuarial gain or loss amount, which is recognized in other comprehensive income. The net actuarial gain or loss in excess of a 10% corridor is amortized in net periodic benefit cost over the average remaining service period of active participants in the Plans. The prior service credit is amortized over the average remaining service period to full eligibility for participating employees expected to receive benefits. ​ At the end of each year the Plans’ assets and obligations are examined to determine its funded status as of the end of the fiscal year and recognizes those changes in other comprehensive income, net of tax. The plans over or under funded status is recognized in the consolidated balance sheet as an asset or liability, respectively. ​ 401(k) Plan : Income Taxes: Treasury Stock: Earnings Per Share: Revenue Recognition: Revenue from Contracts with Customers Wealth Management: and the resulting in monthly fee income, based on the daily accrual of the market value of the investment accounts and the applicable fee rate. ​ Marketing Costs: ​ Segment Reporting: Recent Accounting Pronouncements The following table provides a brief description of accounting standards that could have a material impact to the Company’s consolidated financial statements upon adoption: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Standard Description Required Date of Adoption Effect on financial statements Standards Adopted in 2023 ​ ​ ​ ASU 2022-02 Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings ("TDRs") and Vintage Disclosures ​ ​ The amendments in this update eliminate TDR recognition and measurement guidance and, instead, require that an entity evaluate (consistent with the accounting for other loan modifications) whether the modification represents a new loan or a continuation of an existing loan. The amendments enhance existing disclosure requirements and introduce new requirements related to certain modifications of receivables made to borrowers experiencing financial difficulty. ​ ​ January 1, 2023 ​ ​ The adoption of this ASU did not have a material impact on our consolidated financial statements. ASU 2023-02 Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method ​ ​ The amendments in this update permit reporting entities to elect to account for their tax equity investments, regardless of the tax credit program from which the income tax credits are received, using the proportional amortization method if certain conditions are met. ​ ​ December 15, 2023, including interim periods within the fiscal year ​ ​ The adoption of this ASU did not have a material impact on our consolidated financial statements. Standards Not Yet Adopted ​ ​ ​ ASU 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures ​ ​ The amendments in this update require that public business entities on an annual basis (1) disclose specific categories in the rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than 5 percent of the amount computed by multiplying pretax income [or loss] by the applicable statutory income tax rate). ​ ​ For public business entities, the amendments in this update are effective for ​ ​ We do not expect adoption of this ASU to have a material impact on our consolidated financial statements. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 1

SECURITIES AVAILABLE FOR SALE

SECURITIES AVAILABLE FOR SALE	12 Months Ended
	Dec. 31, 2023
SECURITIES AVAILABLE FOR SALE
SECURITIES AVAILABLE FOR SALE	​ ​ NOTE 2. SECURITIES AVAILABLE FOR SALE The following is a summary of securities available for sale: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ Unrealized ​ ​ ​ (in thousands) Amortized Cost Gains Losses Fair Value December 31, 2023 ​ ​ ​ ​ Debt securities: ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ 2,021 ​ $ — ​ $ (29) ​ $ 1,992 Mortgage-backed securities and collateralized mortgage obligations: ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ 223,602 ​ ​ 12 ​ ​ (30,332) ​ ​ 193,282 US Government agency ​ 85,005 ​ 145 ​ (10,937) ​ 74,213 Private label ​ 60,888 ​ 18 ​ (1,855) ​ 59,051 Obligations of states and political subdivisions thereof ​ 119,857 ​ 4,515 ​ (14,204) ​ 110,168 Corporate bonds ​ 105,552 ​ 19 ​ (9,703) ​ 95,868 Total securities available for sale ​ $ 596,925 ​ $ 4,709 ​ $ (67,060) ​ $ 534,574 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ Unrealized ​ ​ ​ (in thousands) Amortized Cost Gains Losses Fair Value December 31, 2022 ​ ​ ​ ​ Debt securities: ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ 2,692 ​ $ 5 ​ $ (37) ​ $ 2,660 Mortgage-backed securities and collateralized mortgage obligations: ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ 249,838 ​ ​ 14 ​ ​ (34,825) ​ ​ 215,027 US Government agency ​ 90,318 ​ 16 ​ (10,728) ​ 79,606 Private label ​ 64,056 ​ 34 ​ (3,936) ​ 60,154 Obligations of states and political subdivisions thereof ​ 121,939 ​ 7,149 ​ (21,351) ​ 107,737 Corporate bonds ​ 102,505 ​ 33 ​ (8,206) ​ 94,332 Total securities available for sale ​ $ 631,348 ​ $ 7,251 ​ $ (79,083) ​ $ 559,516 ​ Credit Quality Information We monitor the credit quality of available for sale debt securities through credit ratings from various rating agencies and substantial price changes. In an effort to make informed decisions, we utilize credit ratings that express opinions about the credit quality of a security. Securities are triggered for further review in the quarter if the security has significant fluctuations in ratings, drops below investment-grade, or significant pricing changes. For securities without credit ratings, we utilize other financial information indicating the financial health of the underlying municipality, agency, or organization associated with the underlying security. ​ As of December 31, 2023 and 2022, we carried no allowance on available for sale debt securities in accordance with ASC 326, Measurement of Credit Losses on Financial Instruments. ​ The amortized cost and estimated fair value of available for sale securities segregated by contractual maturity at December 31, 2023 are presented below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Mortgage-backed securities are shown in total, as their maturities are highly variable. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Available for sale (in thousands) Amortized Cost Fair Value Within 1 year $ 3,038 ​ $ 3,017 Over 1 year to 5 years ​ 50,471 ​ 47,138 Over 5 years to 10 years ​ 45,706 ​ 44,887 Over 10 years ​ 128,215 ​ 112,986 Total bonds and obligations ​ 227,430 ​ 208,028 Mortgage-backed securities and collateralized mortgage obligations ​ 369,495 ​ 326,546 Total securities available for sale ​ $ 596,925 ​ $ 534,574 ​ The following table summarizes proceeds from the sale of AFS securities and realized gains and losses: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Proceeds from Sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ of Securities ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Available for Sale Realized Gains Realized Losses Net 2023 ​ $ 2,000 ​ $ 34 ​ $ — ​ $ 34 2022 ​ ​ 7,130 ​ ​ 151 ​ ​ (98) ​ ​ 53 2021 ​ 92,723 ​ ​ 2,933 ​ ​ (63) ​ ​ 2,870 There were no sales of securities in 2023, the $2.0 million represents proceeds from a called security with a $34 thousand realized gain. ​ Securities with unrealized losses, segregated by the duration of their continuous unrealized loss positions, are summarized as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less Than Twelve Months ​ Over Twelve Months ​ Total ​ ​ Gross ​ ​ Gross ​ ​ Gross ​ ​ ​ ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Unrealized ​ Fair (in thousands) Losses Value Losses Value Losses Value December 31, 2023 ​ ​ ​ ​ ​ ​ Debt securities: ​ ​ ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ 1 ​ $ 1,084 ​ $ 28 ​ $ 907 ​ $ 29 ​ $ 1,991 Mortgage-backed securities and collateralized mortgage obligations: ​ ​ ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ 10 ​ ​ 3,439 ​ ​ 30,322 ​ ​ 188,611 ​ ​ 30,332 ​ ​ 192,050 US Government agency ​ 2 ​ 120 ​ 10,935 ​ 68,891 ​ 10,937 ​ 69,011 Private label ​ — ​ 26 ​ 1,855 ​ 59,007 ​ 1,855 ​ 59,033 Obligations of states and political subdivisions thereof ​ 26 ​ 3,099 ​ 14,178 ​ 101,036 ​ 14,204 ​ 104,135 Corporate bonds ​ 156 ​ 4,913 ​ 9,547 ​ 84,950 ​ 9,703 ​ 89,863 Total securities available for sale ​ $ 195 ​ $ 12,681 ​ $ 66,865 ​ $ 503,402 ​ $ 67,060 ​ $ 516,083 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less Than Twelve Months ​ Over Twelve Months ​ Total ​ Gross ​ ​ Gross ​ ​ Gross ​ ​ ​ ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Unrealized ​ Fair (in thousands) ​ Losses ​ Value ​ Losses ​ Value ​ Losses ​ Value December 31, 2022 ​ ​ ​ ​ ​ ​ Debt securities: ​ ​ ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ 32 ​ $ 435 ​ $ 6 ​ $ 790 ​ $ 38 ​ $ 1,225 Mortgage-backed securities and collateralized mortgage obligations: ​ ​ ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ 7,005 ​ ​ 82,483 ​ ​ 27,820 ​ ​ 127,745 ​ ​ 34,825 ​ ​ 210,228 US Government agency ​ 2,870 ​ 42,430 ​ 7,857 ​ 34,198 ​ 10,727 ​ 76,628 Private label ​ 841 ​ 15,694 ​ 3,095 ​ 44,396 ​ 3,936 ​ 60,090 Obligations of states and political subdivisions thereof ​ 7,990 ​ 48,799 ​ 13,361 ​ 55,702 ​ 21,351 ​ 104,501 Corporate bonds ​ 4,733 ​ 65,279 ​ 3,473 ​ 25,027 ​ 8,206 ​ 90,306 Total securities available for sale ​ $ 23,471 ​ $ 255,120 ​ $ 55,612 ​ $ 287,858 ​ $ 79,083 ​ $ 542,978 ​ A summary of securities pledged as collateral for certain deposits and borrowing arrangements for the years ended December 31, 2023 and 2022 is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ December 31, 2022 ​ Carrying Estimated Carrying Estimated (in thousands) ​ Value ​ Fair Value ​ Value ​ Fair Value Securities pledged for deposits ​ $ 24,347 ​ $ 21,341 ​ $ 26,807 ​ $ 23,430 Securities pledged for repurchase agreements ​ 18,841 ​ 16,230 ​ 21,001 ​ 17,964 Securities pledged for borrowings (1) ​ 113,775 ​ 95,318 ​ 40,686 ​ 33,962 Total securities pledged ​ $ 156,963 ​ $ 132,889 ​ $ 88,494 ​ $ 75,356 (1) The Bank pledged securities as collateral for certain borrowing arrangements with the Federal Home Loan Bank of Boston and Federal Reserve Bank of Boston. ​ We expect to recover the amortized cost basis on all securities in our AFS portfolio. Furthermore, we do not intend to sell nor do we anticipate that we will be required to sell any securities in an unrealized loss position as of December 31, 2023, prior to this recovery. Our ability and intent to hold these securities until recovery is supported by our capital and liquidity positions as well as historically low portfolio turnover. ​ The following summarizes, by investment security type, the impact of securities in an unrealized loss position at December 31, 2023: ​ Obligations of US Government-sponsored enterprises 8 out of the total 8 securities in our portfolio of AFS obligations of US Government-sponsored enterprises were in unrealized loss positions. Aggregate unrealized losses represented 1.44% of the amortized cost of securities in unrealized loss positions. The US Small Business Administration guarantees the contractual cash flows of all of our obligations of US Government-sponsored enterprises. The securities are investment-grade rated and there were no material underlying credit downgrades during the quarter. ​ US Government-sponsored enterprises 448 out of the total 493 securities in our portfolio of AFS US Government-sponsored enterprises were in unrealized loss positions. Aggregate unrealized losses represented 13.64% of the amortized cost of securities in unrealized loss positions. The Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation guarantee the contractual cash flows of all of our US Government-sponsored enterprises. The securities are investment grade rated and there were no material underlying credit downgrades during the year. US Government agency 130 out of the total 151 securities in our portfolio of AFS US Government agency securities were in unrealized loss positions. Aggregate unrealized losses represented 13.68% of the amortized cost of securities in unrealized loss positions. The Government National Mortgage Association guarantees the contractual cash flows of all of our US government agency securities. The securities are rated investment grade and there were no material underlying credit downgrades during the year. Private label 26 of the total 28 securities in our portfolio of AFS private label mortgage-backed securities were in unrealized loss positions. Aggregate unrealized losses represented 3.05% of the amortized cost of securities in unrealized loss positions. We expect to receive all of the future contractual cash flows related to the amortized cost on these securities. Obligations of states and political subdivisions thereof 52 of the total 69 securities in our portfolio of AFS municipal bonds and obligations were in unrealized loss positions. Aggregate unrealized losses represented 12.48% of the amortized cost of securities in unrealized loss positions. We continually monitor the municipal bond sector of the market carefully and periodically evaluate the appropriate level of exposure to the market. At this time, we believe the bonds in this portfolio carry minimal risk of default and we are appropriately compensated for that risk. There were no material underlying credit downgrades during the year. Corporate bonds 30 of the total 35 securities in our portfolio of AFS corporate bonds were in an unrealized loss position. The aggregate unrealized loss represents 9.75% of the amortized cost of securities in unrealized loss positions. We review the financial strength of all of these bonds and have concluded that the amortized cost remains supported by the expected future cash flows of these securities. The most recent review includes all bond issuers and their current credit ratings, financial performance and capitalization.

LOANS AND ALLOWANCE FOR CREDIT

LOANS AND ALLOWANCE FOR CREDIT LOSSES	12 Months Ended
	Dec. 31, 2023
LOANS AND ALLOWANCE FOR CREDIT LOSSES
LOANS AND ALLOWANCE FOR CREDIT LOSSES	​ ​ NOTE 3. LOANS AND ALLOWANCE FOR CREDIT LOSSES ​ We evaluate risk characteristics of loans based on regulatory call report code with segmentation based on the underlying collateral for certain loan types. The following is a summary of total loans by regulatory call report code segmentation based on underlying collateral for certain loan types: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, (in thousands) 2023 2022 Commercial construction ​ $ 154,048 ​ $ 117,577 Commercial real estate owner occupied ​ 310,015 ​ 244,814 Commercial real estate non-owner occupied ​ 1,144,566 ​ 1,146,674 Tax exempt ​ 43,688 ​ 42,879 Commercial and industrial ​ 310,883 ​ 297,112 Residential real estate ​ 940,334 ​ 954,968 Home equity ​ 87,683 ​ 90,865 Consumer other ​ 7,832 ​ 7,801 Total loans ​ 2,999,049 ​ 2,902,690 Allowance for credit losses ​ 28,142 ​ 25,860 Net loans ​ $ 2,970,907 ​ $ 2,876,830 ​ Total unamortized net costs and premiums included in loan totals were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, (in thousands) 2023 2022 Net unamortized loan origination costs ​ $ 3,039 ​ $ 3,184 Net unamortized fair value discount on acquired loans ​ (2,891) ​ (3,506) Total ​ $ 148 ​ $ (322) ​ We exclude accrued interest receivable from the amortized cost basis of loans disclosed throughout this footnote. As of December 31, 2023 and 2022, accrued interest receivable for loans totaled $11.9 million and $10.7 million, respectively, and is included in the “other assets” line item on the Company’s consolidated balance sheets. ​ Characteristics of each loan portfolio segment are as follows: ​ Commercial construction ​ Commercial real estate owner occupied and non-owner occupied ​ Tax Exempt ​ Commercial and industrial loans ​ Residential real estate ​ Home equity - ​ Consumer other ​ Allowance for Credit Losses The Allowance for Credit Losses (“ACL”) is comprised of the allowance for loan losses and the allowance for unfunded commitments which is accounted for as a separate liability in other liabilities on our consolidated balance sheet. The level of the ACL represents management’s estimate of expected credit losses over the expected life of the loans at the consolidated balance sheet date. ​ The ACL is a valuation account that is deducted from the amortized cost basis of loans to present the net amount expected to be collected on the loans. Loans, or portions thereof, are charged off against the allowance when they are deemed uncollectible. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged off. The ACL is comprised of reserves measured on a collective (pool) basis based on a lifetime loss-rate model when similar risk characteristics exist. Loans that do not share risk characteristics are evaluated on an individual basis, generally larger non-accruing commercial loans. ​ ​ ​ The activity in the allowance for credit losses for the periods ended are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At or for the Year Ended December 31, 2023 ​ ​ Balance at ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning of ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at (in thousands) Period ​ Charge Offs Recoveries Provision End of Period Commercial construction ​ $ 2,579 ​ $ — ​ $ — ​ $ 1,682 ​ $ 4,261 Commercial real estate owner occupied ​ 2,189 ​ — ​ 142 ​ 532 ​ 2,863 Commercial real estate non-owner occupied ​ 9,341 ​ — ​ — ​ 102 ​ 9,443 Tax exempt ​ 93 ​ — ​ — ​ 26 ​ 119 Commercial and industrial ​ 3,493 ​ (664) ​ 149 ​ 281 ​ 3,259 Residential real estate ​ 7,274 ​ (8) ​ 31 ​ 55 ​ 7,352 Home equity ​ 811 ​ (12) ​ 6 ​ (38) ​ 767 Consumer other ​ 80 ​ (289) ​ 19 ​ 268 ​ 78 Total ​ $ 25,860 ​ $ (973) ​ $ 347 ​ $ 2,908 ​ $ 28,142 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At or for the Year Ended December 31, 2022 ​ ​ Balance at ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning of ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at (in thousands) Period ​ Charge Offs Recoveries Provision End of Period Commercial construction ​ $ 2,111 ​ $ — ​ $ — ​ $ 468 ​ $ 2,579 Commercial real estate owner occupied ​ 2,751 ​ — ​ 120 ​ (682) ​ 2,189 Commercial real estate non-owner occupied ​ 5,650 ​ — ​ — ​ 3,691 ​ 9,341 Tax exempt ​ 86 ​ — ​ — ​ 7 ​ 93 Commercial and industrial ​ 5,369 ​ (8) ​ ​ 341 ​ (2,209) ​ 3,493 Residential real estate ​ 5,862 ​ (84) ​ 106 ​ 1,390 ​ 7,274 Home equity ​ 814 ​ (7) ​ 25 ​ (21) ​ 811 Consumer other ​ 75 ​ (267) ​ 12 ​ 260 ​ 80 Total ​ $ 22,718 ​ $ (366) ​ $ 604 ​ $ 2,904 ​ $ 25,860 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At or for the Year Ended December 31, 2021 ​ ​ Balance at ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning of ​ Impact of ASC ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at (in thousands) Period ​ 326 Charge Offs Recoveries Provision End of Period Commercial construction ​ $ 824 ​ $ 1,196 ​ $ — ​ $ 18 ​ $ 73 ​ $ 2,111 Commercial real estate owner occupied ​ 1,783 ​ 708 ​ (403) ​ 290 ​ 373 ​ 2,751 Commercial real estate non-owner occupied ​ 7,864 ​ (2,008) ​ — ​ 4 ​ (210) ​ 5,650 Tax exempt ​ 58 ​ 40 ​ — ​ — ​ (12) ​ 86 Commercial and industrial ​ 3,137 ​ 2,996 ​ (59) ​ ​ 77 ​ (782) ​ 5,369 Residential real estate ​ 5,010 ​ 1,732 ​ (77) ​ 159 ​ (962) ​ 5,862 Home equity ​ 285 ​ 603 ​ (154) ​ 51 ​ 29 ​ 814 Consumer other ​ 121 ​ (39) ​ (205) ​ 9 ​ 189 ​ 75 Total ​ $ 19,082 ​ $ 5,228 ​ $ (898) ​ $ 608 ​ $ (1,302) ​ $ 22,718 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Unfunded Commitments ​ The allowance for credit losses on unfunded commitments is recognized as a liability (other liabilities on the consolidated balance sheet), with adjustments to the reserve recognized in other non-interest expense in the consolidated statement of operations. The activity in the allowance for credit losses on unfunded commitments for the periods ended was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At or for the Years Ended December 31, (in thousands) ​ 2023 2022 2021 Beginning Balance ​ $ 3,910 ​ $ 2,152 ​ $ 359 Impact of ASC 326 ​ ​ — ​ ​ — ​ ​ 1,616 Provision for credit losses ​ (85) ​ 1,758 ​ 177 Ending Balance ​ $ 3,825 ​ $ 3,910 ​ $ 2,152 ​ ​ Loan Origination/Risk Management: ​ Credit Quality Indicators: ​ The following are the definitions of our credit quality indicators: ​ Pass: ​ Special Mention: ​ Substandard: ​ Doubtful: specific pending factors, which may work to the advantage and strengthening of the loan, its classification as loss is deferred until its more exact status is determined. Pending factors include proposed merger, acquisition, or liquidation procedures, capital injection, perfecting liens on additional collateral and refinancing plans. The entire amount of the loan might not be classified as doubtful when collection of a specific portion appears highly probable. Loans are generally not classified doubtful for an extended period of time (i.e., over a year). ​ Loss: ​ The following table presents our loans by year of origination, loan segmentation and risk indicator as of December 31, 2023: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ 2023 ​ 2022 ​ 2021 ​ 2020 ​ 2019 ​ Prior ​ Total Commercial construction ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 14,040 ​ $ 99,115 ​ $ 35,978 ​ $ 3,992 ​ $ — ​ $ 923 ​ $ 154,048 Special mention ​ — ​ — ​ — ​ — ​ — ​ — ​ — Substandard ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ $ 14,040 ​ $ 99,115 ​ $ 35,978 ​ $ 3,992 ​ $ — ​ $ 923 ​ $ 154,048 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate owner occupied ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 57,603 ​ $ 61,015 ​ $ 43,228 ​ $ 20,209 ​ $ 20,462 ​ $ 91,187 ​ $ 293,704 Special mention ​ 160 ​ 387 ​ 7,488 ​ 1,596 ​ — ​ 3,066 ​ 12,697 Substandard ​ — ​ — ​ — ​ — ​ — ​ 3,497 ​ 3,497 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 117 ​ ​ 117 Total ​ $ 57,763 ​ $ 61,402 ​ $ 50,716 ​ $ 21,805 ​ $ 20,462 ​ $ 97,867 ​ $ 310,015 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate non-owner occupied ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 41,270 ​ $ 353,613 ​ $ 199,311 ​ $ 127,231 ​ $ 78,759 ​ $ 238,973 ​ $ 1,039,157 Special mention ​ 7,809 ​ — ​ 14,134 ​ 37,249 ​ 15,246 ​ 17,108 ​ 91,546 Substandard ​ — ​ — ​ — ​ — ​ — ​ 13,863 ​ 13,863 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ $ 49,079 ​ $ 353,613 ​ $ 213,445 ​ $ 164,480 ​ $ 94,005 ​ $ 269,944 ​ $ 1,144,566 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tax exempt ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 6,340 ​ $ 8,468 ​ $ 787 ​ $ 208 ​ $ 590 ​ $ 27,295 ​ $ 43,688 Special mention ​ — ​ — ​ — ​ — ​ — ​ — ​ — Substandard ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ $ 6,340 ​ $ 8,468 ​ $ 787 ​ $ 208 ​ $ 590 ​ $ 27,295 ​ $ 43,688 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial and industrial ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 80,942 ​ $ 69,402 ​ $ 22,205 ​ $ 38,824 ​ $ 14,739 ​ $ 77,273 ​ $ 303,385 Special mention ​ 364 ​ 1,446 ​ — ​ 776 ​ 28 ​ 3,588 ​ 6,202 Substandard ​ 58 ​ 94 ​ 186 ​ 109 ​ 95 ​ 532 ​ 1,074 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 87 ​ ​ 135 ​ ​ 222 Total ​ $ 81,364 ​ $ 70,942 ​ $ 22,391 ​ $ 39,709 ​ $ 14,949 ​ $ 81,528 ​ $ 310,883 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 5 ​ ​ 659 ​ ​ 664 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ 2023 ​ 2022 ​ 2021 ​ 2020 ​ 2019 ​ Prior ​ Total Residential real estate ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 72,395 ​ $ 194,109 ​ $ 165,434 ​ $ 96,016 ​ $ 62,648 ​ $ 345,823 ​ $ 936,425 Nonperforming ​ — ​ — ​ 41 ​ — ​ 234 ​ 3,634 ​ 3,909 Total ​ $ 72,395 ​ $ 194,109 ​ $ 165,475 ​ $ 96,016 ​ $ 62,882 ​ $ 349,457 ​ $ 940,334 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 8 ​ ​ 8 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Home equity ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 15,582 ​ $ 15,334 ​ $ 7,873 ​ $ 6,633 ​ $ 4,800 ​ $ 36,652 ​ $ 86,874 Nonperforming ​ — ​ — ​ — ​ — ​ — ​ 809 ​ 809 Total ​ $ 15,582 ​ $ 15,334 ​ $ 7,873 ​ $ 6,633 ​ $ 4,800 ​ $ 37,461 ​ $ 87,683 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 12 ​ ​ 12 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consumer other ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 4,128 ​ $ 1,787 ​ $ 696 ​ $ 301 ​ $ 51 ​ $ 864 ​ $ 7,827 Nonperforming ​ — ​ — ​ 4 ​ 1 ​ — ​ — ​ 5 Total ​ $ 4,128 ​ $ 1,787 ​ $ 700 ​ $ 302 ​ $ 51 ​ $ 864 ​ $ 7,832 Current period gross write-offs ​ ​ — ​ ​ 52 ​ ​ 18 ​ ​ 5 ​ ​ — ​ ​ 214 ​ ​ 289 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Loans ​ $ 300,691 ​ $ 804,770 ​ $ 497,365 ​ $ 333,145 ​ $ 197,739 ​ $ 865,339 ​ $ 2,999,049 ​ ​ The following table presents our loans by year of origination, loan segmentation and risk indicator as of December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ 2022 ​ 2021 ​ 2020 ​ 2019 ​ 2018 ​ Prior ​ Total Commercial construction ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 49,722 ​ $ 38,837 ​ $ 2,865 ​ $ 1,011 ​ $ 964 ​ $ — ​ $ 93,399 Special mention ​ — ​ — ​ 24,178 ​ — ​ — ​ — ​ 24,178 Substandard ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ $ 49,722 ​ $ 38,837 ​ $ 27,043 ​ $ 1,011 ​ $ 964 ​ $ — ​ $ 117,577 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate owner occupied ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 22,371 ​ $ 11,290 ​ $ 23,014 ​ $ 31,352 ​ $ 46,398 ​ $ 103,295 ​ $ 237,720 Special mention ​ — ​ — ​ 243 ​ 666 ​ 173 ​ 1,870 ​ 2,952 Substandard ​ — ​ — ​ — ​ — ​ 77 ​ 3,924 ​ 4,001 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 141 ​ ​ 141 Total ​ $ 22,371 ​ $ 11,290 ​ $ 23,257 ​ $ 32,018 ​ $ 46,648 ​ $ 109,230 ​ $ 244,814 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate non-owner occupied ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 370,856 ​ $ 228,414 ​ $ 145,096 ​ $ 88,111 ​ $ 35,213 ​ $ 238,395 ​ $ 1,106,085 Special mention ​ — ​ 21,390 ​ — ​ 127 ​ 911 ​ 16,612 ​ 39,040 Substandard ​ — ​ — ​ — ​ — ​ — ​ 1,404 ​ 1,404 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 145 ​ ​ 145 Total ​ $ 370,856 ​ $ 249,804 ​ $ 145,096 ​ $ 88,238 ​ $ 36,124 ​ $ 256,556 ​ $ 1,146,674 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tax exempt ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 8,686 ​ $ 1,020 ​ $ 252 ​ $ 772 ​ $ 13,231 ​ $ 18,918 ​ $ 42,879 Special mention ​ — ​ — ​ — ​ — ​ — ​ — ​ — Substandard ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ $ 8,686 ​ $ 1,020 ​ $ 252 ​ $ 772 ​ $ 13,231 ​ $ 18,918 ​ $ 42,879 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial and industrial ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 83,151 ​ $ 26,948 ​ $ 62,835 ​ $ 27,491 ​ $ 9,511 ​ $ 81,316 ​ $ 291,252 Special mention ​ 1,450 ​ — ​ 53 ​ 803 ​ 201 ​ 619 ​ 3,126 Substandard ​ — ​ 113 ​ 111 ​ 65 ​ 299 ​ 2,106 ​ 2,694 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 40 ​ ​ 40 Total ​ $ 84,601 ​ $ 27,061 ​ $ 62,999 ​ $ 28,359 ​ $ 10,011 ​ $ 84,081 ​ $ 297,112 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ 2022 ​ 2021 ​ 2020 ​ 2019 ​ 2018 ​ Prior ​ Total Residential real estate ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 195,320 ​ $ 177,480 ​ $ 111,021 ​ $ 69,170 ​ $ 47,797 ​ $ 349,795 ​ $ 950,583 Nonperforming ​ — ​ 45 ​ — ​ 49 ​ 641 ​ 3,650 ​ 4,385 Total ​ $ 195,320 ​ $ 177,525 ​ $ 111,021 ​ $ 69,219 ​ $ 48,438 ​ $ 353,445 ​ $ 954,968 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Home equity ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 17,107 ​ $ 10,638 ​ $ 8,139 ​ $ 6,830 ​ $ 6,997 ​ $ 40,191 ​ $ 89,902 Nonperforming ​ — ​ — ​ — ​ — ​ — ​ 963 ​ 963 Total ​ $ 17,107 ​ $ 10,638 ​ $ 8,139 ​ $ 6,830 ​ $ 6,997 ​ $ 41,154 ​ $ 90,865 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consumer other ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 4,321 ​ $ 1,341 ​ $ 863 ​ $ 265 ​ $ 64 ​ $ 942 ​ $ 7,796 Nonperforming ​ — ​ — ​ 5 ​ — ​ — ​ — ​ 5 Total ​ $ 4,321 ​ $ 1,341 ​ $ 868 ​ $ 265 ​ $ 64 ​ $ 942 ​ $ 7,801 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Loans ​ $ 752,984 ​ $ 517,516 ​ $ 378,675 ​ $ 226,712 ​ $ 162,477 ​ $ 864,326 ​ $ 2,902,690 ​ ​ Past Dues ​ The following is a summary of past due loans for the periods ended: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 (in thousands) 30-59 60-89 90+ Total Past Due Current Total Loans Commercial construction ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 154,048 ​ $ 154,048 Commercial real estate owner occupied ​ — ​ — ​ — ​ — ​ 310,015 ​ 310,015 Commercial real estate non-owner occupied ​ — ​ — ​ 103 ​ 103 ​ 1,144,463 ​ 1,144,566 Tax exempt ​ — ​ — ​ — ​ — ​ 43,688 ​ 43,688 Commercial and industrial ​ 465 ​ 59 ​ 330 ​ 854 ​ 310,029 ​ 310,883 Residential real estate ​ 1,520 ​ 627 ​ 1,999 ​ 4,146 ​ 936,188 ​ 940,334 Home equity ​ 600 ​ — ​ 337 ​ 937 ​ 86,746 ​ 87,683 Consumer other ​ 10 ​ 2 ​ — ​ 12 ​ 7,820 ​ 7,832 Total ​ $ 2,595 ​ $ 688 ​ $ 2,769 ​ $ 6,052 ​ $ 2,992,997 ​ $ 2,999,049 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 (in thousands) 30-59 60-89 90+ Total Past Due Current Total Loans Commercial construction ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 117,577 ​ $ 117,577 Commercial real estate owner occupied ​ 385 ​ — ​ — ​ 385 ​ 244,429 ​ 244,814 Commercial real estate non-owner occupied ​ 45 ​ 145 ​ 139 ​ 329 ​ 1,146,345 ​ 1,146,674 Tax exempt ​ — ​ — ​ — ​ — ​ 42,879 ​ 42,879 Commercial and industrial ​ 169 ​ — ​ 9 ​ 178 ​ 296,934 ​ 297,112 Residential real estate ​ 803 ​ 348 ​ 2,029 ​ 3,180 ​ 951,788 ​ 954,968 Home equity ​ 216 ​ 160 ​ 246 ​ 622 ​ 90,243 ​ 90,865 Consumer other ​ 41 ​ 8 ​ — ​ 49 ​ 7,752 ​ 7,801 Total ​ $ 1,659 ​ $ 661 ​ $ 2,423 ​ $ 4,743 ​ $ 2,897,947 ​ $ 2,902,690 ​ Non-Accrual Loans ​ The following is a summary of non-accrual loans for the periods ended: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ ​ ​ ​ Nonaccrual With No ​ 90+ Days Past (in thousands) Nonaccrual Related Allowance Due and Accruing Commercial construction ​ $ — ​ $ — ​ $ — Commercial real estate owner occupied ​ 103 ​ 44 ​ — Commercial real estate non-owner occupied ​ 340 ​ 224 ​ — Tax exempt ​ — ​ — ​ — Commercial and industrial ​ 363 ​ 6 ​ — Residential real estate ​ 3,908 ​ 1,131 ​ 118 Home equity ​ 809 ​ 1 ​ 22 Consumer other ​ 5 ​ — ​ — Total ​ $ 5,528 ​ $ 1,406 ​ $ 140 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ ​ ​ Nonaccrual With No ​ 90+ Days Past (in thousands) Nonaccrual Related Allowance Due and Accruing Commercial construction ​ $ — ​ $ — ​ $ — Commercial real estate owner occupied ​ 439 ​ 360 ​ — Commercial real estate non-owner occupied ​ 550 ​ 411 ​ — Tax exempt ​ — ​ — ​ — Commercial and industrial ​ 207 ​ 145 ​ — Residential real estate ​ 4,385 ​ 1,361 ​ 202 Home equity ​ 963 ​ 57 ​ 14 Consumer other ​ 5 ​ — ​ — Total ​ $ 6,549 ​ $ 2,334 ​ $ 216 ​ Our policy is to reverse previously recorded interest income when a loan is placed on non-accrual, as such, the Company did not record any interest income on its non-accrual for the year ended December 31, 2023 and 2022. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Collateral Dependent Loans Loans that do not share risk characteristics are evaluated on an individual basis. For loans that are individually evaluated and collateral dependent, financial loans where we have determined that foreclosure of the collateral is probable, or where the borrower is experiencing financial difficulty and we expect repayment of the financial asset to be provided substantially through the operation or sale of the collateral, the ACL is measured based on the difference between the fair value of the collateral and the amortized cost basis of the asset as of the measurement date. ​ The following table presents the amortized cost basis of collateral-dependent loans by loan portfolio segment for the periods ended. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ December 31, 2022 (in thousands) Real Estate Other Real Estate Other Commercial construction ​ $ — ​ $ — ​ $ — ​ $ — Commercial real estate owner occupied ​ 104 ​ — ​ 439 ​ — Commercial real estate non-owner occupied ​ 340 ​ — ​ 550 ​ — Tax exempt ​ — ​ — ​ — ​ — Commercial and industrial ​ 229 ​ 134 ​ 91 ​ 116 Residential real estate ​ 3,908 ​ — ​ 4,385 ​ — Home equity ​ 808 ​ — ​ 963 ​ — Consumer other ​ 5 ​ — ​ 5 ​ — Total ​ $ 5,394 ​ $ 134 ​ $ 6,433 ​ $ 116 ​ ​ Loan Modifications to Borrowers Experiencing Financial Difficulty In January 2023, the Company adopted ASU 2022-02, “Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures” which eliminated the accounting guidance for TDRs while enhancing disclosure requirements for certain loan refinancing and restructurings by creditors when a borrower is experiencing financial difficulty. This guidance was applied on a prospective basis. Upon adoption of this guidance, we are no longer required to establish a specific reserve for modifications to borrowers experiencing financial difficulty. Instead, these modifications are included in their respective category and a historical loss rate is applied to the current loan balance to arrive at the quantitative baseline portion of the ACL. ​ These modifications typically result from loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance, or other actions. There were no qualifying modifications for the twelve months ended December 31, 2022. ​ The following table presents the amortized cost basis of loans that were both experiencing financial difficulty and modified during the twelve months ended December 31, 2023, by class and by type of modification. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ Principal Forgiveness ​ Payment Delay ​ Term Extension ​ Interest Rate Reduction ​ Combination Interest Rate Reduction and Term Extension ​ % of Total Class of Loans Twelve Months Ended December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial construction ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ — % Commercial real estate owner occupied ​ — ​ — ​ — ​ — ​ — ​ — ​ Commercial real estate non-owner occupied ​ — ​ — ​ — ​ — ​ — ​ — ​ Tax exempt ​ — ​ — ​ — ​ — ​ — ​ — ​ Commercial and industrial ​ — ​ 65 ​ 184 ​ — ​ — ​ 0.08 ​ Residential real estate ​ — ​ — ​ — ​ 99 ​ — ​ 0.01 ​ Home equity ​ — ​ — ​ — ​ — ​ — ​ — ​ Consumer other ​ — ​ — ​ — ​ — ​ — ​ — ​ Total ​ $ — ​ $ 65 ​ $ 184 ​ $ 99 ​ $ — ​ 0.01 % ​ The following table presents the financial effect of loan modifications made to borrowers experiencing financial difficulty during the twelve months ended December 31, 2023. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ Weighted-Average Months of Payment Delay ​ Weighted-Average Months of Term Extension ​ ​ Weighted-Average Interest Rate Reduction Twelve Months Ended December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial construction ​ ​ — ​ ​ — ​ ​ — % Commercial real estate owner occupied ​ ​ — ​ ​ — ​ ​ — ​ Commercial real estate non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ Tax exempt ​ ​ — ​ ​ — ​ ​ — ​ Commercial and industrial ​ ​ 3.00 ​ ​ 13.45 ​ ​ — ​ Residential real estate ​ ​ — ​ ​ — ​ ​ 1.38 ​ Home equity ​ ​ — ​ ​ — ​ ​ — ​ Consumer other ​ ​ — ​ ​ — ​ ​ — ​ Total ​ ​ 3.00 ​ ​ 13.45 ​ ​ 1.38 % ​ Foreclosure Residential mortgage loans collateralized by real estate that are in the process of foreclosure as of December 31, 2023 and December 31, 2022 totaled $430 thousand and $253 thousand, respectively. ​ Loan Concentrations Loan concentrations in specific industries may occasionally emerge as a result of economic conditions, changes in local demands, natural loan growth and runoff. At December 31, 2023, the largest industry concentration outside of commercial real estate was the hospitality industry which represents 11% or $334.8 million of the Company’s total loan portfolio, compared with 12% or $336.4 million at December 31, 2022. Loans to Related Parties In the ordinary course of business, the Bank has made loans at prevailing rates and terms to directors, officers and other related parties. In management’s opinion, such loans do not present more than the normal risk of collectability or incorporate other unfavorable features, and were made under terms that are consistent with the Bank’s lending policies. Loan to related parties at December 31, 2023 and December 31, 2022 are summarized below: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ 2023 ​ 2022 Beginning balance ​ $ 4,763 ​ $ 3,379 Changes in composition (1) ​ — ​ ​ 112 New loans ​ — ​ ​ 1,576 Less: repayments ​ (718) ​ ​ (304) Ending balance ​ $ 4,045 ​ $ 4,763 (1) Adjustments to reflect changes in status of directors and officers for each year presented. Mortgage Banking ​ Loans sold For the years ended December 31, 2023 and 2022, we sold $38.8 million and $38.6 million, respectively, of residential mortgage loans on the secondary market, which resulted in a net gain on sale of loans (net of costs, including direct and indirect origination costs) of $192 thousand and $161 thousand, respectively. ​ Loans Held for Sale We had $2.2 million of loans held for sale as of December 31, 2023, there no loans held for sale as of December 31, 2022. Loans held for sale at December 31, 2023 had an unpaid principal balance of $2.1 million, respectively. The interest rate exposure on loans held for sale is mitigated through forward delivery commitments with certain approved secondary market investors. Forward sale commitments had a notional amount of $5.0 million at December 31, 2023, and we had no open forward sale commitments at December 31, 2022. Refer to Note 10 for further discussion of forward delivery commitments. ​ Servicing Assets The Bank sells loans in the secondary market and retains the ability to service many of these loans. The Bank earns fees for the servicing provided. At year end 2023 and 2022, the Bank was servicing loans for participants totaling $595.2 million and $616.0 million, respectively. Loans serviced for others are not included in the accompanying consolidated balance sheets. The risks inherent in servicing assets relate primarily to changes in prepayments that result from shifts in interest rates. Contractually-specified servicing fees were $1.6 million for the year ended 2023 and 2022, and are included as a component of other income within non-interest income. Servicing rights activity during 2023 and 2022, included in other assets, was as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At or for the Twelve Months Ended ​ ​ December 31, (in thousands) 2023 2022 Balance at beginning of year ​ $ 3,383 ​ $ 3,673 Additions ​ 338 ​ 421 Amortization ​ (560) ​ (711) Balance at end of year ​ $ 3,161 ​ $ 3,383 ​

PREMISES AND EQUIPMENT

PREMISES AND EQUIPMENT	12 Months Ended
	Dec. 31, 2023
PREMISES AND EQUIPMENT
PREMISES AND EQUIPMENT	Premises and equipment at December 31, 2023 and December 31, 2022 are summarized as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Estimated Useful (in thousands, except years) ​ 2023 ​ 2022 Life Land ​ $ 3,882 ​ $ 4,934 N/A Buildings and improvements ​ 60,168 ​ 56,239 5-39 years Furniture and equipment ​ 17,630 ​ 16,225 3-8 years Premises and equipment, gross ​ 81,680 ​ 77,398 Accumulated depreciation ​ (33,393) ​ (29,776) Premises and equipment, net ​ $ 48,287 ​ $ 47,622 ​ Depreciation expense for the years ended December 31, 2023 and 2022 amounted to $4.2 million, and was $4.6 million for the year ended December 31, 2021. Premises held for sale for the years ended December 31, 2023, 2022 and 2021 were $1.2 million, $252 thousand and $226 thousand, respectively, and are included in other assets. We measure premises held for sale at the lower of amortized cost or estimated fair value less 6% selling costs. We did not sell any premises held for sale in 2023 or 2022. We sold $579 thousand of premises held for sale in 2021 for a net loss of $291 thousand. There were no impairment charges recognized in 2023 and 2022. There were $157 thousand of impairment charges recognized in 2021 due to the demolition of a building.

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES	12 Months Ended
	Dec. 31, 2023
GOODWILL AND OTHER INTANGIBLES
GOODWILL AND OTHER INTANGIBLES	​ NOTE 5. GOODWILL AND OTHER INTANGIBLES The activity impacting goodwill in 2023 and 2022 is as follows: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Balance at beginning of year ​ $ 119,477 ​ $ 119,477 Acquisition ​ — ​ — Balance at end of year ​ $ 119,477 ​ $ 119,477 ​ In the fourth quarter of 2023, we completed annual goodwill impairment testing using balance sheet and market data as of September 30, 2023. The analysis was performed at the consolidated Bank level, which is considered the smallest reporting unit carrying goodwill. No goodwill impairment was recognized for the years ended December 31, 2023, 2022 and 2021. ​ The components of other intangible assets in 2023 and 2022 are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ ​ Gross ​ Accumulated ​ Net Intangible (in thousands) Intangible Assets Amortization Assets Core deposit intangible (non-maturity deposits) ​ $ 9,483 ​ $ (5,686) ​ $ 3,797 Customer list and other intangibles ​ 2,118 ​ (1,046) ​ 1,072 Total ​ $ 11,601 ​ $ (6,732) ​ $ 4,869 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2022 ​ ​ Gross ​ Accumulated ​ Net Intangible (in thousands) Intangible Assets Amortization Assets Core deposit intangible (non-maturity deposits) ​ $ 9,483 ​ $ (4,948) ​ $ 4,535 Customer list and other intangibles ​ 2,118 ​ (852) ​ 1,266 Total ​ $ 11,601 ​ $ (5,800) ​ $ 5,801 ​ Other intangible assets are amortized on a straight-line basis over their estimated lives, which range from five years to 11 years. Amortization expenses related to intangibles totaled $932 thousand in 2023, $932 thousand in 2022 and $940 thousand in 2021. The estimated aggregate future amortization expense for other intangible assets remaining at year end 2023 is as follows: ​ ​ ​ ​ ​ ​ ​ Other Intangible (in thousands) Assets 2024 ​ $ 932 2025 ​ 932 2026 ​ 932 2027 ​ 932 2028 ​ 959 and thereafter ​ 182 Total ​ $ 4,869 ​

DEPOSITS

DEPOSITS	12 Months Ended
	Dec. 31, 2023
DEPOSITS.
DEPOSITS	​ ​ NOTE 6. DEPOSITS A summary of time deposits at December 31, 2023 and December 31, 2022 are as follows: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) December 31, 2023 December 31, 2022 Time less than $100,000 ​ $ 381,902 ​ $ 157,263 Time $100,000 through $250,000 ​ 163,933 ​ 118,655 Time $250,000 or more ​ 154,425 ​ 47,521 Total ​ $ 700,260 ​ $ 323,439 ​ At December 31, 2023 and December 31, 2022, the scheduled maturities by year for time deposits are as follows: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) December 31, 2023 ​ December 31, 2022 Within 1 year ​ $ 670,961 ​ $ 262,338 Over 1 year to 2 years ​ 17,000 ​ 37,937 Over 2 years to 3 years ​ 6,932 ​ 12,936 Over 3 years to 4 years ​ 3,434 ​ 5,410 Over 4 years to 5 years ​ 1,795 ​ 4,319 Over 5 years ​ 138 ​ 499 Total ​ $ 700,260 ​ $ 323,439 ​ Included in time deposits are brokered deposits of $219.6 million and $15.1 million at December 31, 2023 and December 31, 2022, respectively. Also included in time deposits are reciprocal deposits of $43.3 million and $27.4 million at December 31, 2023 and December 31, 2022, respectively.

BORROWED FUNDS

BORROWED FUNDS	12 Months Ended
	Dec. 31, 2023
BORROWED FUNDS
BORROWED FUNDS	NOTE 7. BORROWED FUNDS Borrowed funds at December 31, 2023 and December 31, 2022 are summarized, as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ December 31, 2022 ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Weighted ​ (dollars in thousands) Carrying Value Average Rate ​ Carrying Value Average Rate Short-term borrowings ​ ​ ​ ​ ​ ​ ​ Advances from the FHLB ​ $ 232,300 5.46 % ​ $ 318,000 3.84 % Advances from the FRB BTFP ​ ​ 30,000 ​ 4.90 ​ ​ ​ — ​ — ​ Other borrowings ​ 8,465 0.13 ​ ​ 13,369 0.13 ​ Total short-term borrowings ​ 270,765 2.88 ​ ​ 331,369 2.20 ​ Long-term borrowings ​ ​ ​ ​ Advances from the FHLB ​ 279 4.39 ​ ​ 2,588 0.48 ​ Subordinated borrowings ​ 60,461 6.22 ​ ​ 60,289 4.95 ​ Total long-term borrowings ​ 60,740 6.21 ​ ​ 62,877 4.76 ​ Total ​ $ 331,505 3.24 % ​ $ 394,246 2.45 % ​ Short-term debt includes FHLB advances with a remaining maturity of less than one year. We also maintain a $1.0 million secured line of credit with the FHLB that bears a daily adjustable rate calculated by the FHLB. There was no outstanding balance on the FHLB line of credit for the years ended December 31, 2023 and 2022. We also have capacity to borrow funds on a secured basis utilizing the Federal Reserve Discount Window and the Bank Term Funding Program (“BTFP”). As of December 31, 2023, our available secured line of credit at the FRB was $156.6 million versus $90.4 million in 2022. The BTFP enables depository institutions to pledge eligible investment securities to the Federal Reserve with borrowing capacity based upon the par value of the collateral. During the fourth quarter of 2023, we entered into the Bank Term Funding Program for $30 million at a fixed rate of 4.85% for a period of one year. The BTFP allows us to manage borrowing costs while obtaining favorable prepayment terms, as we may prepay at any time without penalty. There were no borrowings with the FRB at December 31, 2022. We maintain an unused unsecured federal funds line of credit with a correspondent bank that has an aggregate overnight borrowing capacity of $50 million as of December 31, 2023 and December 31, 2022. There was no outstanding balance on the line of credit as of December 31, 2023 and December 31, 2022. Long-term FHLB advances consist of advances with a remaining maturity of more than one year. The advances outstanding at December 31, 2023 include $279 thousand and $288 thousand in 2022 of amortizing advances. There were no callable advances in 2023 and 2022. All FHLB borrowings, including the line of credit, are secured by a blanket security agreement on certain qualified collateral, principally residential first mortgage loans and certain securities. A summary of maturities of FHLB advances as of December 31, 2023 is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted Average (in thousands, except rates) ​ Amount ​ Rate 2024 ​ $ 232,300 5.46 % 2025 ​ — — ​ 2026 ​ — — ​ 2027 ​ — — ​ 2028 ​ — — ​ Thereafter ​ 279 4.39 ​ Total FHLB advances ​ $ 232,579 5.46 % ​ We executed a Subordinated Note Purchase Agreement with an aggregate of $40.0 million of subordinated notes (the “Notes”) to accredited investors on November 26, 2019. The Notes have a maturity date of December 1, 2029 and bear a fixed interest rate of 4.63% through December 1, 2024 payable semi-annually in arrears. From December 1, 2024 and thereafter the interest rate shall be reset quarterly to an interest rate per annum equal to the then current three-month Secured Overnight Financing Rate (“SOFR”) plus 3.27%. We have the option beginning with the interest payment date of December 1, 2024, and on any scheduled payment date thereafter, to redeem the Notes, in whole or in part upon prior approval of the Federal Reserve. The transaction included debt issuance costs of $158 thousand and $331 thousand net of amortization as of December 31, 2023 and 2022 respectively, which are netted against the subordinated debt. We also have $20.6 million in floating Junior Subordinated Deferrable Interest Debentures (“Debentures”) issued by NHTB Capital Trust II (“Trust II”) and NHTB Capital Trust III (“Trust III”), which are both Connecticut statutory trusts. The Debentures were issued on March 30, 2004, carry a variable interest rate of three-month SOFR plus 2.79%, and mature in 2034. The debt is callable by the Company at the time when any interest payment is made. Trust II and Trust III are considered variable interest entities for which we are not the primary beneficiary. Accordingly, Trust II and Trust III are not consolidated into our financial statements. Repurchase Agreements We can raise additional liquidity by entering into repurchase agreements at our discretion. In a security repurchase agreement transaction, we will generally sell a security, agreeing to repurchase either the same or substantially identical security on a specified later date, at a greater price than the original sales price. The difference between the sale price and purchase price is the cost of the proceeds, which is recorded as interest expense on the consolidated statements of income. The securities underlying the agreements are delivered to counterparties as security for the repurchase obligations. Since the securities are treated as collateral and the agreement does not qualify for a full transfer of effective control, the transactions do not meet the criteria to be classified as sales, and are therefore considered secured borrowing transactions for accounting purposes. Payments on such borrowings are interest only until the scheduled repurchase date. In a repurchase agreement, we are subject to the risk that the purchaser may default at maturity and not return the securities underlying the agreements. In order to minimize this potential risk, we either deal with established firms when entering into these transactions or with customers whose agreements stipulate that the securities underlying the agreement are not delivered to the customer and instead are held in segregated safekeeping accounts by our safekeeping agents. ​ ​ Our repurchase agreements accounted for as secured borrowings, as of December 31, 2023 and December 31, 2022 are as follows: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ December 31, 2023 ​ December 31, 2022 Customer Repurchase Agreements ​ ​ US Government-sponsored enterprises ​ $ 8,465 ​ $ 13,369 Total ​ $ 8,465 ​ $ 13,369 ​

EMPLOYEE BENEFIT PLANS

EMPLOYEE BENEFIT PLANS	12 Months Ended
	Dec. 31, 2023
EMPLOYEE BENEFIT PLANS
EMPLOYEE BENEFIT PLANS	​ NOTE 8. EMPLOYEE BENEFIT PLANS Pension Plans We maintain a legacy, employer-sponsored defined benefit pension plan (the “Plan”) for which participation and benefit accruals were frozen on January 13, 2017. Accordingly, no employees are permitted to commence participation in the Plan and future salary increases and years of credited service are not considered when computing an employee’s benefits under the Plan. As of December 31, 2023, all minimum Employee Retirement Income Security Act (“ERISA”) funding requirements have been met. The following tables set forth information about the plan for the year ended December 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Change in projected benefit obligation: ​ ​ ​ ​ ​ ​ Projected benefit obligation at beginning of year ​ $ 6,245 $ 8,601 Interest cost ​ 318 ​ 236 Actuarial Gain/(loss) ​ 119 ​ (2,114) Benefits paid ​ (317) ​ (326) Settlements ​ — ​ (152) Projected benefit obligation at end of year ​ 6,365 ​ 6,245 ​ ​ ​ ​ ​ ​ ​ Change in fair value of plan assets: ​ ​ Fair value of plan assets at beginning of year ​ 9,044 ​ 12,422 Expected return on plan assets ​ 622 ​ (2,900) Benefits paid ​ (317) ​ (326) Settlements ​ — ​ (152) Fair value of plan assets at end of year ​ 9,349 ​ 9,044 ​ ​ ​ ​ ​ ​ ​ Overfunded status ​ $ (2,984) $ (2,799) ​ ​ ​ ​ ​ ​ ​ Amounts recognized in consolidated balance sheet: ​ ​ Other assets ​ $ 2,984 $ 2,799 ​ ​ Net periodic pension cost/(benefit) is comprised of the following for the years ended December 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Interest cost ​ $ 318 ​ $ 236 Expected return on plan assets ​ (355) ​ (612) Unrecognized loss ​ 53 ​ — Net periodic pension benefit ​ $ 16 ​ $ (376) ​ Amounts recognized in other comprehensive income for the years ended December 31, 2023 and 2022 included: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Net actuarial loss (gain) ​ $ (148) ​ $ 1,391 Recognized loss ​ (53) ​ — Net period pension benefit (credit) ​ 16 ​ (376) Total recognized in other comprehensive income ​ $ (185) ​ $ 1,015 ​ Change in plan assets and benefit obligations recognized in accumulated other comprehensive income as of December 31, 2023 and 2022 are as follows: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Net actuarial (gain) loss ​ $ (148) ​ $ 1,391 Recognized loss ​ (53) ​ — Prior service cost ​ — ​ — Amounts Recognized in accumulated other comprehensive (gain) loss (pre-tax) ​ $ (201) ​ $ 1,391 ​ The after tax components of accumulated other comprehensive loss, which have not yet been recognized in net periodic pension cost, related to the Plan are a net loss of $1.2 million. We expect to make no cash contributions to the pension trust during the 2024 fiscal year. The amount expected to be amortized from accumulated other comprehensive loss into net periodic pension cost over the next fiscal year is zero. The principal actuarial assumptions used at December 31, 2023 and 2022 were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 Projected benefit obligation ​ ​ Discount rate 5.00 % ​ 5.23 % Net periodic pension cost ​ ​ ​ ​ ​ ​ Discount rate 5.23 % ​ 2.80 % Long-term rate of return on plan assets 4.00 ​ 5.00 ​ ​ The discount rate that is used in the measurement of the pension obligation is determined by comparing the expected future retirement payment cash flows of the plan to the Citigroup Above Median Double-A Curve as of the measurement date. The expected long-term rate of return on Plan assets reflects expectations of future returns as applied to the plan’s target allocation of asset classes. In estimating that rate, appropriate consideration was given to historical returns earned by equities and fixed income securities. Our overall investment strategy with respect to the Plan’s assets is to maintain assets at a level that will sufficiently cover future beneficiary obligations while achieving long term growth in assets. The Plan’s targeted asset allocation is 20% equity securities and 80% fixed-income securities primarily consisting of long-term products. The fair values for investment securities are determined by quoted prices in active markets, if available (Level 1). For securities where quoted prices are not available, fair values are calculated based on market prices of similar securities (Level 2). For securities where quoted prices or market prices of similar securities are not available, fair values are calculated using discounted cash flows or other market indicators (Level 3). The fair value of the Plan’s assets by category and level within fair value hierarchy are as follows at December 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 (in thousands) Total Level 1 Level 2 Equity mutual funds: ​ ​ ​ ​ Large-cap ​ $ 680 ​ $ 680 ​ $ — Mid-cap ​ 195 ​ 195 ​ — Small-cap ​ 199 ​ 199 ​ — International ​ 391 ​ 391 ​ — Fixed income funds: ​ ​ ​ Fixed-income - core plus ​ — ​ — ​ — Intermediate duration ​ — ​ — ​ — Long duration ​ ​ 6,698 ​ ​ 6,698 ​ ​ — Common stock ​ 663 ​ 663 ​ — Common/collective trusts - large-cap ​ 180 ​ — ​ 180 Cash equivalents - money market ​ 343 ​ 343 ​ — Total ​ $ 9,349 ​ $ 9,169 ​ $ 180 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2022 (in thousands) Total Level 1 Level 2 Equity mutual funds: ​ ​ ​ Large-cap ​ $ 660 ​ $ 660 ​ $ — Mid-cap ​ 210 ​ 210 ​ — Small-cap ​ 214 ​ 214 ​ — International ​ 420 ​ 420 ​ — Fixed income funds: ​ ​ ​ Long duration ​ ​ 6,294 ​ ​ 6,294 ​ ​ — Common stock ​ 724 ​ 724 ​ — Common/collective trusts - large-cap ​ 206 ​ — ​ 206 Cash equivalents - money market ​ 316 ​ 316 ​ — Total ​ $ 9,044 ​ $ 8,838 ​ $ 206 ​ The Plan did not hold any assets classified as Level 3, and there were no transfers between levels during 2023 and 2022. Estimated benefit payments under our pension plan over the next 10 years at December 31, 2023 are as follows: ​ ​ ​ ​ ​ (in thousands) Payments 2024 ​ $ 342 2025 ​ 337 2026 ​ 402 2027 ​ 404 2028 ​ 423 2029-2033 ​ 2,233 Total ​ $ 4,141 ​ Non-qualified Supplemental Executive Retirement Plan We have non-qualified supplemental executive retirement agreements with certain retired officers. The agreements provide supplemental retirement benefits payable in installments over a period of years upon retirement or death. This agreement provides a stream of future payments in accordance with individually defined vesting schedules upon retirement, termination, or in the event that the participating executive leaves the Company following a change of control event. The following table sets forth changes in benefit obligation, changes in plan assets, and the funded status of the plan as of and for the years ended December 31, 2023 and December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Change in benefit obligation: ​ ​ Projected benefit obligation at beginning of year ​ $ 2,093 ​ $ 2,606 Service cost ​ — ​ — Interest cost ​ 97 ​ 54 Actuarial (gain) loss ​ (5) ​ (307) Benefits paid ​ (260) ​ (260) Projected benefit obligation at end of year ​ $ 1,925 ​ $ 2,093 ​ ​ ​ ​ ​ ​ ​ Change in fair value of plan assets: ​ ​ Fair value of plan assets at beginning of year ​ $ — ​ $ — Expected return on plan assets ​ — ​ — Contributions by employer ​ 260 ​ 260 Benefits paid ​ (260) ​ (260) Fair value of plan assets at end of year ​ $ — ​ $ — ​ ​ ​ ​ ​ ​ ​ Underfunded status ​ $ 1,925 ​ $ 2,093 ​ ​ ​ ​ ​ ​ ​ Amounts recognized in consolidated balance sheet ​ ​ Other liabilities ​ $ 1,925 ​ $ 2,093 ​ Net periodic benefit cost is comprised of the following for the years ended December 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Interest cost ​ $ 97 ​ $ 54 Expected return on plan assets ​ — ​ — Amortization of unrecognized actuarial loss ​ 7 ​ 37 Net periodic benefit cost ​ $ 104 ​ $ 91 ​ ​ Amounts recognized in other comprehensive income for the years ended December 31, 2023 and 2022 included: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Net actuarial loss (gain) ​ $ 100 ​ $ (382) Amortization of unrecognized actuarial loss ​ (7) ​ (37) Total recognized in other comprehensive loss (gain) ​ $ 93 ​ $ (419) ​ Change in plan assets and benefit obligations recognized in accumulated other comprehensive income in 2023 and 2022 are as follows: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Accumulated other comprehensive loss at beginning of the year (pre-tax) ​ ​ 180 ​ ​ 599 Actuarial loss (gain) ​ 100 ​ (382) Amortization of actuarial loss ​ (7) ​ (37) Accumulated other comprehensive loss at end of year (pre-tax) ​ $ 273 ​ $ 180 ​ The after tax components of accumulated other comprehensive loss, which have not yet been recognized in net periodic benefit cost, related to the non-qualified supplemental executive retirement agreements are a net loss of $204 thousand. The amount expected to be amortized from accumulated other comprehensive income into net periodic benefit cost over the next fiscal year is $10 thousand. The principal actuarial assumptions used at December 31, 2023 and December 31, 2022 were as follows: ​ ​ ​ ​ ​ ​ ​ ​ 2023 2022 Discount rate beginning of year 4.92 % 2.12 % Discount rate end of year 4.72 4.92 ​ ​ The discount rate used in the measurement of the non-qualified supplemental executive retirement plan obligation is determined by comparing the expected future retirement payment cash flows to the Citigroup Above Median Double- A Curve as of the measurement date. We expect to contribute the following amounts to fund benefit payments under the supplemental executive retirement plans: ​ ​ ​ ​ ​ (in thousands) Payments 2024 ​ $ 260 2025 ​ 231 2026 ​ 221 2027 ​ 221 2028 ​ 221 2029-2033 ​ 1,104 Total ​ $ 2,258 ​ 401(k) Plan We maintain a Section 401(k) savings plan for substantially all of its employees. Employees are eligible to participate in the 401(k) Plan on the first day of any quarter following their date of hire and attainment of age 21½ . Under the plan, we make a matching contribution of a portion of the amount contributed by each participating employee, up to a percentage of the employee’s annual salary. The plan allows for supplementary profit sharing contributions by Bar Harbor, at its discretion, for the benefit of participating employees. The total expense for this plan in 2023, 2022, and 2021 was $1.2 million. Other Plans As a result of the acquisition of a business combination in 2017, we assumed salary continuation agreements for supplemental retirement income with certain prior executives and senior officers along with an executive indexed supplemental retirement plan for one prior executive. The total liability for these agreements included in other liabilities was $6.3 million at December 31, 2023 and $6.5 million at December 31, 2022. Expense recorded in 2023 was $255 thousand compared to Income recorded in 2022 was $1.2 million. We recorded income in 2021 under these agreements of $312 thousand. We also assumed split-dollar life insurance agreements from the 2017 business combination with an accrued liability of $709 thousand at December 31, 2023 and $679 thousand at December 31, 2022. We recorded expense for the split-dollar life insurance agreements of $30 thousand in 2023 and income of $197 thousand in 2022. We recorded expense of $22 thousand in 2021.

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2023
INCOME TAXES
INCOME TAXES	NOTE 9. INCOME TAXES The following table summarizes the current and deferred components of income tax expense (benefit) for each of the years ended December 31, 2023, 2022 and 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 2021 Current: ​ ​ ​ Federal tax expense ​ $ 10,704 ​ $ 10,444 ​ $ 7,796 State tax expense ​ 2,247 ​ 1,551 ​ 1,106 Total current tax expense ​ 12,951 ​ 11,995 ​ 8,902 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deferred tax (benefit) expense ​ (686) ​ (707) ​ 427 Total income tax expense ​ $ 12,265 ​ $ 11,288 ​ $ 9,329 ​ The following table reconciles the expected federal income tax expense (computed by applying the federal statutory tax rate of 21%) to recorded income tax expense for the years ended December 31, 2023, 2022 and 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 ​ 2021 (in thousands, except ratios) ​ Amount ​ Rate ​ Amount ​ Rate ​ Amount ​ Rate Statutory tax rate $ 11,995 21.00 % $ 11,517 21.00 % $ 10,210 21.00 % Increase (decrease) resulting from: ​ ​ ​ ​ ​ ​ State taxes, net of federal benefit ​ 1,539 2.69 ​ 1,477 2.69 ​ 1,280 2.63 Tax exempt interest ​ (1,042) (1.82) ​ (1,003) (1.83) ​ (1,240) (2.55) Federal tax credits ​ (471) (0.82) ​ (241) (0.44) ​ (582) (1.20) Officers' life insurance ​ (578) (1.01) ​ (498) (0.91) ​ (466) (0.96) Gain on disposal of low income housing tax credit investments ​ — — ​ — — ​ — — Stock-based compensation plans ​ 17 0.03 ​ (16) (0.03) ​ (73) (0.15) Other ​ 805 ​ 1.40 ​ 52 0.10 ​ 200 0.42 Effective tax rate ​ $ 12,265 21.47 % $ 11,288 20.58 % $ 9,329 19.19 % ​ The net deferred tax asset was $23.0 million at December 31, 2023 and $24.4 million at December 31, 2022. The tax effects of temporary differences that give rise to deferred tax assets and deferred tax liabilities at December 31, 2023 and 2022 are summarized below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 (in thousands) ​ Assets ​ Liabilities ​ Assets ​ Liabilities Allowance for credit losses $ 6,593 $ — $ 5,964 $ — Deferred compensation ​ 3,678 ​ — ​ 3,812 ​ — Unrealized gain or loss on securities available for sale ​ 14,702 ​ — ​ 16,586 ​ — Unrealized gain or loss on derivatives ​ 312 ​ — ​ 539 ​ — Depreciation ​ — ​ 1,101 ​ — ​ 1,723 Deferred loan origination fees, net ​ — ​ 129 ​ 129 ​ — Non-accrual interest ​ 632 ​ — ​ 600 ​ — Branch acquisition costs and goodwill ​ — ​ 1,987 ​ — ​ 1,644 Core deposit intangible ​ — ​ 689 ​ — ​ 806 Acquisition fair value adjustments ​ 232 ​ — ​ 213 ​ — Prepaid expenses ​ — ​ 297 ​ — ​ 271 Mortgage servicing rights ​ — ​ 741 ​ — ​ 780 Equity compensation ​ 1,016 ​ — ​ 736 ​ — Prepaid pension ​ — ​ 669 ​ — ​ 616 Contract incentives ​ 564 ​ — ​ 766 ​ — Right of use asset ​ — ​ 1,611 ​ — ​ 1,863 Lease liability ​ 1,716 ​ — ​ 1,961 ​ — Other ​ 758 ​ — ​ 840 ​ — Total ​ $ 30,203 ​ $ 7,224 ​ $ 32,146 ​ $ 7,703 ​ We have determined that a valuation allowance is not required for its net deferred tax asset since it is more likely than not that this asset is realizable principally through future taxable income and future reversal of existing temporary differences. GAAP requires the measurement of unrecorded tax benefits related to uncertain tax positions. An unrecorded tax benefit is the difference between the tax benefit of a position taken, or expected to be taken, on a tax return and the benefit recorded for accounting purposes. At December 31, 2023 and 2022, we had no unrecorded tax benefits and do not expect our position to significantly change within the next 12 months. We are subject to income tax in the U.S. federal jurisdiction and also in the states of Maine, New Hampshire and Massachusetts. We are no longer subject to examination by taxing authorities for years before 2020.

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES	12 Months Ended
	Dec. 31, 2023
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES	​ ​ NOTE 10. DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES We use derivative instruments to minimize fluctuations in earnings and cash flows caused by interest rate volatility. Our interest rate risk management strategy involves modifying the re-pricing characteristics of certain assets or liabilities so the changes in interest rates do not have a significant effect on net interest income. Thus, all of our derivative contracts are considered to be interest rate contracts. ​ We recognize our derivative instruments on the consolidated balance sheet at fair value. On the date the derivative instrument is entered into, we designate whether the derivative is part of a hedging relationship (i.e., cash flow or fair value hedge). We formally document relationships between hedging instruments and hedged items, as well as our risk management objective and strategy for undertaking hedge transactions. We also assess, both at the hedge’s inception and on an ongoing basis, whether the derivatives used in hedging transactions are highly effective in offsetting the changes in cash flows or fair values of hedged items. Changes in fair value of derivative instruments that are highly effective and qualify as cash flow hedges are recorded in other comprehensive income or loss. ​ We offer derivative products in the form of interest rate swaps, to commercial loan customers to facilitate their risk management strategies. These instruments are executed through Master Netting Arrangements (“MNA”) with financial institution counterparties or Risk Participation Agreements (“RPA”) with commercial bank counterparties, for which we assume a pro rata share of the credit exposure associated with a borrower's performance related to the derivative contract with the counterparty. ​ Information about derivative assets and liabilities at December 31, 2023 and December 31, 2022, follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ Notional ​ Average ​ Fair Value ​ Location Fair ​ ​ Amount ​ Maturity ​ Asset (Liability) Value Asset ​ (in thousands) (in years) (in thousands) (Liability) Cash flow hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on wholesale funding ​ $ 75,000 ​ 1.0 ​ $ 2,803 ​ Other assets Interest rate swap on variable rate loans ​ ​ 50,000 ​ ​ 2.2 ​ ​ (3,459) ​ Other liabilities Total cash flow hedges ​ 125,000 ​ ​ ​ ​ (656) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair value hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ 37,190 ​ 5.6 ​ 3,844 ​ Other assets Total fair value hedges ​ 37,190 ​ ​ ​ ​ 3,844 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Economic hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Forward sale commitments ​ 5,000 ​ — ​ (20) ​ Other liabilities Customer Loan Swaps-MNA Counterparty ​ ​ 184,826 ​ ​ 5.0 ​ ​ (14,842) ​ Other liabilities Customer Loan Swaps-RPA Counterparty ​ ​ 142,199 ​ ​ 4.9 ​ ​ (286) ​ Other liabilities Customer Loan Swaps-Customer ​ ​ 327,025 ​ ​ 4.9 ​ ​ 15,128 ​ Other assets Total economic hedges ​ 659,050 ​ ​ ​ ​ (20) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-hedging derivatives: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate lock commitments ​ 3,153 ​ 0.1 ​ 63 ​ Other assets Total non-hedging derivatives ​ 3,153 ​ ​ ​ ​ 63 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 824,393 ​ ​ ​ ​ $ 3,231 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ Notional ​ Average ​ Fair Value ​ Location Fair ​ ​ Amount ​ Maturity ​ Asset (Liability) Value Asset ​ (in thousands) (in years) (in thousands) (Liability) Cash flow hedges: ​ ​ ​ ​ ​ Interest rate swap on wholesale funding ​ $ 75,000 ​ 2.0 ​ $ 4,978 ​ Other assets Interest rate swap on variable rate loans ​ ​ 50,000 ​ ​ 3.2 ​ ​ (4,941) ​ Other liabilities Total cash flow hedges ​ 125,000 ​ ​ ​ ​ 37 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair value hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ 37,190 ​ 6.6 ​ 4,774 ​ Other assets Total fair value hedges ​ 37,190 ​ ​ ​ ​ 4,774 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Economic hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Forward sale commitments ​ ​ — ​ — ​ — ​ Other assets Customer Loan Swaps-MNA Counterparty ​ ​ 191,987 ​ ​ 5.8 ​ ​ (20,287) ​ Other liabilities Customer Loan Swaps-RPA Counterparty ​ ​ 113,928 ​ ​ 6.0 ​ ​ — ​ Other liabilities Customer Loan Swaps-Customer ​ ​ 305,914 ​ ​ 5.9 ​ ​ 20,287 ​ Other assets Total economic hedges ​ 611,829 ​ ​ ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-hedging derivatives: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate lock commitments ​ — ​ — ​ — ​ Other assets Total non-hedging derivatives ​ — ​ ​ ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 774,019 ​ ​ ​ ​ $ 4,811 ​ ​ ​ As of December 31, 2023, and 2022, the following amounts were recorded on the balance sheet related to cumulative basis adjustments for fair value hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cumulative Amount of Fair ​ ​ Location of Hedged Item on ​ Carrying Amount of Hedged ​ Value Hedging Adjustment in ​ Balance Sheet Assets Carrying Amount December 31, 2023 ​ ​ Interest rate swap on securities Securities available for sale ​ $ 32,680 ​ $ (4,510) ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ Interest rate swap on securities Securities available for sale ​ $ 30,045 ​ $ (7,145) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Information about derivative assets and liabilities for December 31, 2023 and December 31, 2022, follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2023 ​ Amount of ​ Amount of ​ ​ ​ ​ Gain (Loss) ​ ​ ​ Gain (Loss) ​ ​ ​ ​ ​ ​ Recognized in ​ ​ ​ Reclassified ​ Location of ​ Amount of ​ ​ Other ​ Location of Gain (Loss) ​ from Other ​ Gain (Loss) ​ Gain (Loss) ​ ​ Comprehensive ​ Reclassified from Other ​ Comprehensive ​ Recognized in ​ Recognized (in thousands) Income Comprehensive Income Income Income in Income Cash flow hedges: ​ ​ ​ Interest rate swap on wholesale funding ​ $ (1,687) ​ Interest expense ​ $ — Interest expense ​ $ 3,062 Interest rate swap on variable rate loans ​ ​ 1,157 ​ Interest income ​ ​ — ​ Interest income ​ ​ (2,167) Total cash flow hedges ​ (530) ​ ​ — ​ 895 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair value hedges: ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ 1,314 Interest income ​ — Interest income ​ 1,359 Total fair value hedges ​ 1,314 ​ ​ — ​ 1,359 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Economic hedges: ​ ​ ​ ​ ​ ​ Forward commitments ​ — Other income ​ — Mortgage banking income ​ (20) Total economic hedges ​ — ​ ​ — ​ (20) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-hedging derivatives: ​ ​ ​ ​ ​ ​ Interest rate lock commitments ​ — Other expense ​ — Mortgage banking income ​ (20) Total non-hedging derivatives ​ — ​ ​ — ​ (20) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 784 ​ ​ ​ $ — ​ $ 2,214 ​ (1) As of December 31, 2023, we do not expect any gains or losses from accumulated other comprehensive income into earnings within the next 12 months. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2022 ​ Amount of ​ Amount of ​ ​ ​ ​ Gain (Loss) ​ ​ ​ Gain (Loss) ​ ​ ​ ​ ​ ​ Recognized in ​ ​ ​ Reclassified ​ Location of ​ Amount of ​ ​ Other ​ Location of Gain (Loss) ​ from Other ​ Gain (Loss) ​ Gain (Loss) ​ ​ Comprehensive ​ Reclassified from Other ​ Comprehensive ​ Recognized in ​ Recognized (in thousands) ​ Income ​ Comprehensive Income ​ Income ​ Income ​ in Income Cash flow hedges: ​ ​ ​ Interest rate swap on wholesale funding ​ $ 3,922 Interest expense ​ $ — Interest expense ​ $ 475 Interest rate swap on variable rate loans ​ ​ (3,218) ​ Interest income ​ ​ — ​ Interest income ​ ​ (601) Total cash flow hedges ​ ​ 704 ​ ​ ​ — ​ ​ (126) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair value hedges: ​ ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ — Interest income ​ — Interest income ​ 140 Total economic hedges ​ ​ — ​ ​ ​ — ​ 140 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Economic hedges: ​ ​ ​ ​ ​ ​ ​ Forward commitments ​ — Other income ​ — Mortgage banking income ​ (15) Total economic hedges ​ ​ — ​ ​ ​ — ​ (15) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-hedging derivatives: ​ ​ ​ ​ ​ ​ Interest rate lock commitments ​ — Other income ​ — Mortgage banking income ​ (283) Total non-hedging derivatives ​ ​ — ​ ​ ​ — ​ (283) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 704 ​ $ — ​ $ (284) ​ ​ ​ ​ The effect of cash flow hedging and fair value accounting on the consolidated statements of income for the years ended December 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2023 ​ ​ Interest and Dividend Income ​ Interest Expense ​ ​ ​ (in thousands) Loans ​ Securities and other Deposits ​ Borrowings Non-interest Income Income and expense line items presented in the consolidated statements of income $ 149,420 ​ $ 24,762 ​ $ 38,232 ​ $ 18,275 ​ $ 35,829 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The effects of cash flow and fair value hedging: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gain (loss) on cash flow hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on wholesale funding ​ ​ — ​ ​ — ​ ​ — ​ ​ 3,062 ​ ​ — Interest rate swap on variable rate loans ​ (2,167) ​ ​ — ​ — ​ ​ — ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gain (loss) on fair value hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ ​ — ​ ​ 1,359 ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2022 ​ ​ Interest and Dividend Income ​ Interest Expense ​ ​ ​ (in thousands) Loans ​ Securities and other Deposits ​ Borrowings Non-interest Income Income and expense line items presented in the consolidated statements of income $ 107,797 ​ $ 18,729 ​ $ 7,344 ​ $ 5,501 ​ $ 35,321 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The effects of cash flow and fair value hedging: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gain (loss) on cash flow hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on wholesale funding ​ ​ — ​ ​ — ​ ​ — ​ ​ 475 ​ ​ — Interest rate swap on variable rate loans ​ (601) ​ ​ — ​ — ​ ​ — ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gain (loss) on fair value hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ ​ — ​ ​ 140 ​ ​ — ​ ​ — ​ ​ — ​ Cash flow hedges Interest rate swaps on wholesale funding As of December 31, 2023, we have two interest rate swaps on wholesale borrowings (the “Swaps”) to limit its exposure to rising interest rates over a five year term on 3-month FHLB borrowings or brokered certificates, or a combination thereof at each maturity date. The first of the two agreements was entered in November 2019 with a $50.0 million notional amount and pays a fixed interest rate of 1.53%. A second agreement was entered in April 2020 with a $25.0 million notional amount and pays a fixed rate of 0.59%. The financial institution counterparty pays us interest on the daily SOFR rate plus 26 basis points. We designated the Swaps as cash flow hedges. ​ Interest rate swap on variable rate loans We have an interest rate swap that effectively fixes our interest rate on $50 million at the daily SOFR rate plus 11 basis points of based loan assets at 0.806% plus the credit spread on the loans that reprices on weighted average basis. The instrument is specifically designed to hedge the risk of changes in its cash flows from interest receipts attributable to changes in a contractually specified interest rate, on an amount of our variable rate loan assets equal to $50 million. We designated the swap as a cash flow hedge. ​ Fair value hedges For derivative instruments that are designated and qualify as a fair value hedge, the gain or loss on the derivative instrument as well as the offsetting loss or gain on the hedged asset or liability attributable to the hedged risk are recognized in current earnings. We utilize interest rate swaps designated as fair value hedges to mitigate the effect of changing interest rates on the fair values of fixed rate callable securities available-for-sale. The hedging strategy on securities converts the fixed interest rates to SOFR-based variable interest rates. These derivatives are designated as partial term hedges of selected cash flows covering specified periods of time prior to the call dates of the hedged securities. During 2019, we entered into eight swap transactions with a notional amount of $37.2 million designated as fair value hedges. These derivatives are intended to protect against the effects of changing interest rates on the fair values of fixed rate securities. The fixed rates on the transactions have a weighted average of 1.696%. ​ Economic hedges Forward sale commitments We utilize forward sale commitments on residential mortgage loans to hedge interest rate risk and the associated effects on the fair value of interest rate lock commitments and loans originated for sale. The forward sale commitments are accounted for as derivatives. We typically use a combination of best efforts and mandatory delivery contracts. The contracts are loan sale agreements where we commit to deliver a certain principal amount of mortgage loans to an investor at a specified price on or before a specified date. Generally, we enter into contracts just prior to the loan closing with a customer. ​ Customer loan derivatives We enter into customer loan derivatives to facilitate the risk management strategies for commercial banking customers. We mitigate this risk by entering into equal and offsetting loan swap agreements with highly rated third-party financial institutions. The loan swap agreements are free standing derivatives and are recorded at fair value in our consolidated balance sheet. We are party to master netting arrangements with our financial institutional counterparties; however, we do not offset assets and liabilities under these arrangements for financial statement presentation purposes. ​ The master netting arrangements provide for a single net settlement of all loan swap agreements, as well as collateral or cash funds, in the event of default on, or termination of, any one contract. Collateral is provided by cash or securities received or posted by the counterparty with net liability positions, respectively, in accordance with contract thresholds. ​ The below table describes the potential effect of master netting arrangements on the consolidated balance sheet and the financial collateral pledged for these arrangements: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross Amounts Offset in the Consolidated Balance Sheet ​ ​ Derivative ​ ​ ​ Cash Collateral ​ ​ ​ (in thousands) Liabilities Derivative Assets Pledged Net Amount As of December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ Customer Loan Derivatives: ​ ​ ​ ​ MNA counterparty ​ $ (14,842) ​ $ 14,842 ​ $ — ​ $ — RPA counterparty ​ (286) ​ 286 ​ — ​ — Total ​ $ (15,128) ​ $ 15,128 ​ $ — ​ $ — ​ Non-hedging derivatives Interest rate lock commitments We enter into interest rate lock commitments (“IRLCs”) for residential mortgage loans, which commit us to lend funds to a potential borrower at a specific interest rate and within a specified period of time. IRLCs relate to the origination of residential mortgage loans that are held for sale and are considered derivative financial instruments under applicable accounting guidance. Outstanding IRLCs expose us to the risk that the price of the mortgage loans underlying the commitments may decline due to increases in mortgage interest rates from inception of the rate lock to the funding of the loan. The IRLCs are free standing derivatives, which are carried at fair value with changes recorded in non-interest income in our Consolidated Statements of Income. Changes in the fair value of IRLCs subsequent to inception are based on (i) changes in the fair value of the underlying loan resulting from the fulfillment of the commitment and (ii) changes in the probability when the loan will fund within the terms of the commitment, which is affected primarily by changes in interest rates and the passage of time.

OTHER COMMITMENTS, CONTINGENCIE

OTHER COMMITMENTS, CONTINGENCIES, AND OFF-BALANCE SHEET ACTIVITIES	12 Months Ended
	Dec. 31, 2023
OTHER COMMITMENTS, CONTINGENCIES, AND OFF-BALANCE SHEET ACTIVITIES
OTHER COMMITMENTS, CONTINGENCIES, AND OFF-BALANCE SHEET ACTIVITIES	​ NOTE 11. OTHER COMMITMENTS, CONTINGENCIES, AND OFF-BALANCE SHEET ACTIVITIES Customer Obligations We are a party to financial instruments in the normal course of business to meet financing needs of our customers. These financial instruments include commitments to extend credit, unused or unadvanced loan funds, and letters of credit. We use the same lending policies and procedures to make such commitments as we use for other lending products. Customer’s creditworthiness is evaluated on a case-by-case basis. Commitments to originate loans, including unused or unadvanced loan funds, 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 customer payment of a fee. Since many of the commitments are expected to expire without being fully drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. Standby letters of credit generally become payable upon the failure of the customer to perform according to the terms of the underlying contract with the third party, while commercial letters of credit are issued specifically to facilitate commerce and typically result in the commitment being drawn on when the underlying transaction is consummated between the customer and a third party. The contractual amount of these letters of credit represents the maximum potential future payments guaranteed by us. Typically these letters of credit expire if unused; therefore the total amounts do not necessarily represent future cash requirements. The following table summarizes the contractual amounts of commitments and contingent liabilities to customers as of December 31, 2023 and December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Commitments to originate new loans ​ $ 55,163 ​ $ 51,371 Unused funds on commercial and other lines of credit ​ 202,516 ​ 265,587 Unadvanced funds on home equity lines of credit ​ ​ 118,794 ​ ​ 122,295 Unadvanced funds on construction and real estate loans ​ 188,794 ​ 247,382 Commercial and standby letters of credit ​ ​ 4,217 ​ ​ 4,370 Letters of credit securing municipal deposits ​ ​ 232,500 ​ ​ 228,900 Total ​ $ 801,984 ​ $ 919,905 ​ Legal Claims Various legal claims arise from time to time in the normal course of business. As of December 31, 2023, neither the Company nor its subsidiaries were involved in any pending legal proceedings believed by management to be material to our financial condition or results of operations. Periodically, there have been various claims and lawsuits involving the Company, such as claims to enforce liens, condemnation proceedings on properties in which we hold security interests, claims involving the making and servicing of real property loans, and other issues incident in the normal course of our business. However, neither the Company nor its subsidiaries are a party to any pending legal proceedings that it believes, either individually or in the aggregate, would have a material adverse effect on our financial condition or operations. Additionally, future, probable losses cannot be estimated as of December 31, 2023.

SHAREHOLDERS' EQUITY AND EARNIN

SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE	12 Months Ended
	Dec. 31, 2023
SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE
SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE	NOTE 12. SHAREHOLDERS’ EQUITY AND EARNINGS PER COMMON SHARE The actual and required capital ratios at December 31, 2023 and December 31, 2022 were as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ Minimum Regulatory ​ ​ ​ Actual ​ Capital Requirements ​ (in thousands, except ratios) Amount Ratio ​ Amount Ratio ​ Company (consolidated) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total capital to risk-weighted assets ​ $ 450,160 ​ 14.24 % ​ $ 252,888 ​ 8.00 % Common equity tier 1 capital to risk-weighted assets ​ 357,574 ​ 11.31 ​ ​ 142,249 ​ 4.50 ​ Tier 1 capital to risk-weighted assets ​ 378,194 ​ 11.96 ​ ​ 189,666 ​ 6.00 ​ Tier 1 capital to average assets (leverage ratio) ​ 378,194 ​ 9.70 ​ ​ 156,022 ​ 4.00 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Bank ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total capital to risk-weighted assets ​ $ 441,278 ​ 13.97 % ​ $ 252,642 ​ 8.00 % Common equity tier 1 capital to risk-weighted assets ​ 409,312 ​ 12.96 ​ ​ 142,111 ​ 4.50 ​ Tier 1 capital to risk-weighted assets ​ 409,312 ​ 12.96 ​ ​ 189,482 ​ 6.00 ​ Tier 1 capital to average assets (leverage ratio) ​ 409,312 ​ 10.50 ​ ​ 155,908 ​ 4.00 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ Minimum Regulatory ​ ​ ​ Actual ​ Capital Requirements ​ (in thousands, except ratios) Amount Ratio ​ Amount Ratio ​ Company (consolidated) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total capital to risk-weighted assets ​ $ 416,900 ​ 13.50 % ​ $ 247,041 ​ 8.00 % Common equity tier 1 capital to risk-weighted assets ​ 326,513 ​ 10.57 ​ ​ 138,960 ​ 4.50 ​ Tier 1 capital to risk-weighted assets ​ 347,133 ​ 11.24 ​ ​ 185,281 ​ 6.00 ​ Tier 1 capital to average assets (leverage ratio) ​ 347,133 ​ 9.21 ​ ​ 150,772 ​ 4.00 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Bank ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total capital to risk-weighted assets ​ $ 410,053 ​ 13.29 % ​ $ 246,812 ​ 8.00 % Common equity tier 1 capital to risk-weighted assets ​ 380,286 ​ 12.33 ​ ​ 138,832 ​ 4.50 ​ Tier 1 capital to risk-weighted assets ​ 380,286 ​ 12.33 ​ ​ 185,110 ​ 6.00 ​ Tier 1 capital to average assets (leverage ratio) ​ 380,286 ​ 10.10 ​ ​ 150,655 ​ 4.00 ​ ​ In order to be classified as “well-capitalized” under the relevant regulatory framework, the Company must, on a consolidated basis, maintain a total risk-based capital ratio of 10.00% or greater and a Tier 1 risk-based capital ratio of 6.00% or greater, and the Bank must maintain a total risk-based capital ratio of 10.00% or greater, a Tier 1 risk-based capital ratio of 8.00% or greater, a common equity Tier 1 capital ratio of 6.50% or greater, and a leverage ratio of 5.00% or greater. At each date shown in the tables above, the Company and the Bank met the conditions to be classified as “well-capitalized” under the relevant regulatory framework. Accumulated Other Comprehensive Income Components of accumulated other comprehensive income at December 31, 2023 and December 31, 2022 are as follows: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) December 31, 2023 December 31, 2022 Accumulated other comprehensive loss, before tax: ​ ​ Net unrealized loss on AFS securities ​ $ (62,351) ​ $ (71,832) Net unrealized loss on hedging derivatives ​ (1,322) ​ (2,333) Net unrealized loss on post-retirement plans ​ (1,540) ​ (1,691) ​ ​ ​ ​ ​ ​ ​ Income taxes related to items of accumulated other comprehensive loss: ​ ​ Net unrealized loss on AFS securities ​ 14,702 ​ 16,586 Net unrealized loss on hedging derivatives ​ 312 ​ 539 Net unrealized loss on post-retirement plans ​ 337 ​ 391 Accumulated other comprehensive loss ​ $ (49,862) ​ $ (58,340) ​ The following table presents the components of other comprehensive income in 2023, 2022 and 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Before Tax Tax Effect Net of Tax Year Ended December 31, 2023 ​ ​ ​ Net unrealized gain on AFS securities: ​ ​ ​ Net unrealized gain arising during the period ​ $ 9,515 ​ $ (1,892) ​ $ 7,623 Less: reclassification adjustment for gains realized in net income ​ 34 ​ (8) ​ 26 Net unrealized gain on AFS securities ​ 9,481 ​ (1,884) ​ 7,597 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized gain on hedging derivatives: ​ ​ ​ ​ Net unrealized gain arising during the period ​ 1,011 ​ (227) ​ 784 Less: reclassification adjustment for gains realized in net income ​ — ​ — ​ — Net unrealized gain on hedging derivatives ​ 1,011 ​ (227) ​ 784 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized gain on post-retirement plans: ​ ​ ​ Net unrealized gain arising during the period ​ 135 ​ (38) ​ 97 Less: reclassification adjustment for gains realized in net income ​ — ​ — ​ — Net unrealized gain on post-retirement plans ​ 135 ​ (38) ​ 97 Other comprehensive income ​ $ 10,627 ​ $ (2,149) ​ $ 8,478 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2022 ​ ​ ​ Net unrealized loss on AFS securities: ​ ​ ​ Net unrealized loss arising during the period ​ $ (74,359) ​ $ 17,169 ​ $ (57,190) Less: reclassification adjustment for gains realized in net income ​ 53 ​ (12) ​ 41 Net unrealized loss on AFS securities ​ (74,412) ​ 17,181 ​ (57,231) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized loss on hedging derivatives: ​ ​ ​ Net unrealized loss arising during the period ​ (3,463) ​ 799 ​ (2,664) Less: reclassification adjustment for gains (losses) realized in net income ​ — ​ — ​ — Net unrealized gain on hedging derivatives ​ (3,463) ​ 799 ​ (2,664) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized loss on post-retirement plans: ​ ​ ​ Net unrealized loss arising during the period ​ (973) ​ 225 ​ (748) Less: reclassification adjustment for gains (losses) realized in net income ​ — ​ — ​ — Net unrealized loss on post-retirement plans ​ (973) ​ 225 ​ (748) Other comprehensive loss ​ $ (78,848) ​ $ 18,205 ​ $ (60,643) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 (in thousands) Before Tax Tax Effect Net of Tax Net unrealized loss on AFS securities: ​ ​ ​ Net unrealized loss arising during the period ​ $ (7,619) ​ $ 1,779 ​ $ (5,840) Less: reclassification adjustment for gains realized in net income ​ 2,870 ​ (672) ​ 2,198 Net unrealized loss on AFS securities ​ (10,489) ​ 2,451 ​ (8,038) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized gain on hedging derivatives: ​ ​ ​ Net unrealized gain arising during the period ​ 3,562 ​ (827) ​ 2,735 Less: reclassification adjustment for gains (losses) realized in net income ​ — ​ — ​ — Net unrealized gain on cash flow hedging derivatives ​ 3,562 ​ (827) ​ 2,735 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized loss on post-retirement plans: ​ ​ ​ Net unrealized loss arising during the period ​ 1,132 ​ (266) ​ 866 Less: reclassification adjustment for gains (losses) realized in net income ​ — ​ — ​ — Net unrealized loss on post-retirement plans ​ 1,132 ​ (266) ​ 866 Other comprehensive loss ​ $ (5,795) ​ $ 1,358 ​ $ (4,437) ​ The following table presents the changes in each component of accumulated other comprehensive income/(loss) in 2023, 2022 and 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized Net gain (loss) on Net unrealized ​ ​ ​ ​ gain (loss) ​ effective cash ​ loss ​ ​ ​ ​ ​ on AFS ​ flow hedging ​ on pension ​ ​ ​ (in thousands) ​ Securities ​ derivatives ​ plans ​ Total Year Ended December 31, 2023 ​ ​ ​ ​ ​ Balance at beginning of period ​ $ (55,246) ​ $ (1,794) ​ $ (1,300) ​ $ (58,340) Other comprehensive gain before reclassifications ​ 7,623 ​ 784 ​ 97 ​ 8,504 Less: amounts reclassified from accumulated other comprehensive income ​ 26 ​ — ​ — ​ 26 Total other comprehensive income ​ 7,597 ​ 784 ​ 97 ​ 8,478 Balance at end of period ​ $ (47,649) ​ $ (1,010) ​ $ (1,203) ​ $ (49,862) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at beginning of period ​ $ 1,985 ​ $ 870 ​ $ (552) ​ $ 2,303 Other comprehensive loss before reclassifications ​ (57,190) ​ (2,664) ​ (748) ​ (60,602) Less: amounts reclassified from accumulated other comprehensive income ​ 41 ​ — ​ — ​ 41 Total other comprehensive loss ​ (57,231) ​ (2,664) ​ (748) ​ (60,643) Balance at end of period ​ $ (55,246) ​ $ (1,794) ​ $ (1,300) ​ $ (58,340) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at beginning of period ​ $ 10,023 ​ $ (1,865) ​ $ (1,418) ​ $ 6,740 Other comprehensive loss before reclassifications ​ (5,840) ​ 2,735 ​ 866 ​ (2,239) Less: amounts reclassified from accumulated other comprehensive income ​ 2,198 ​ — ​ — ​ 2,198 Total other comprehensive loss ​ (8,038) ​ 2,735 ​ 866 ​ (4,437) Balance at end of period ​ $ 1,985 ​ $ 870 ​ $ (552) ​ $ 2,303 ​ ​ ​ ​ The following tables presents the amounts reclassified out of each component of accumulated other comprehensive income (loss) in 2023, 2022 and 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Affected Line Item where (in thousands) 2023 2022 2021 Net Income is Presented Net realized gains on AFS securities: ​ ​ ​ ​ ​ ​ ​ Before tax ​ $ 34 ​ $ 53 ​ $ 2,870 Non-interest income Tax effect ​ (8) ​ (12) ​ (672) Tax expense Total reclassifications for the period ​ $ 26 ​ $ 41 ​ $ 2,198 ​ ​ ​ ​ ​ Earnings per Share Earnings per share have been computed based on the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands, except per share and share data) 2023 2022 2021 Net income ​ $ 44,852 ​ $ 43,557 ​ $ 39,299 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Average number of basic common shares outstanding ​ 15,142,188 ​ 15,040,162 ​ 14,968,973 Plus: dilutive effect of stock options and awards outstanding ​ 53,048 ​ 71,799 ​ 76,189 Average number of diluted common shares outstanding (1) ​ 15,195,236 ​ 15,111,961 ​ 15,045,162 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings per share: ​ ​ ​ Basic ​ $ 2.96 ​ $ 2.90 ​ $ 2.63 Diluted ​ $ 2.95 ​ $ 2.88 ​ $ 2.61 ​ (1) Average diluted shares outstanding are computed using the treasury stock method.

STOCK-BASED COMPENSATION PLANS

STOCK-BASED COMPENSATION PLANS	12 Months Ended
	Dec. 31, 2023
STOCK-BASED COMPENSATION PLANS
STOCK-BASED COMPENSATION PLANS	​ ​ NOTE 13. STOCK-BASED COMPENSATION PLANS We have several stock-based compensation plans that allow for grants of restricted stock, restricted shares, performance share units, performance shares and restricted stock units to our employees and non-employee directors. Our stock-based compensation plans are administered by the Compensation Committee of the Board of Directors. For the years ended December 31, 2023, 2022 and 2021, all common stock issuances in connection with stock-based compensation arrangements were issued from unissued shares. As of December 31, 2023, total shares authorized under the stock-based compensation 2019 plan for employees and directors were 500,000 shares, of which 217,435 shares were available for future grants. ​ Compensation expense recognized in connection with the stock-based compensation plans are presented in the following table for the years ended December 31, 2023, 2022, and 2021: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 2021 Stock options ​ $ — ​ $ — ​ $ — Restricted stock awards ​ ​ 868 ​ ​ 578 ​ ​ 357 Performance stock units ​ 857 ​ 181 ​ 317 Restricted stock units ​ 800 ​ 1,098 ​ 1,391 Total compensation expense ​ $ 2,525 ​ $ 1,857 ​ $ 2,065 ​ Tax benefits recognized from stock-based compensation plans for the years ended December 31, 2023, 2022, and 2021 are, as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 2021 Stock options (1) ​ $ 17 ​ $ 22 ​ $ 77 Restricted stock awards ​ ​ 201 ​ ​ 136 ​ ​ 84 Performance stock units ​ 204 ​ 43 ​ 79 Restricted stock units ​ 193 ​ 274 ​ 344 Total tax benefit ​ $ 615 ​ $ 475 ​ $ 584 ​ (1) ​ ​ Stock Options A summary of stock options as of December 31, 2023 and 2022, and changes during the year then ended is presented below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted ​ Aggregate ​ ​ Stock Options ​ Average ​ Intrinsic Value Stock Options Outstanding Exercise Price (in thousands) Outstanding at January 1, 2023 47,327 ​ $ 21.47 ​ Granted — ​ — ​ Exercised (8,166) ​ 20.64 ​ Forfeited — ​ — ​ Expired ​ (3,323) ​ ​ 16.99 ​ ​ ​ Outstanding at December 31, 2023 35,838 ​ $ 22.08 ​ $ 261 ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending vested and expected to vest December 31, 2023 35,838 ​ $ 22.08 ​ $ 261 Exercisable at December 31, 2023 35,838 ​ 22.08 ​ 261 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted ​ Aggregate ​ ​ Stock Options ​ Average ​ Intrinsic Value Stock Options Outstanding Exercise Price (in thousands) Outstanding at January 1, 2022 57,964 ​ $ 20.89 ​ Granted — ​ — ​ Exercised (10,637) ​ 18.29 ​ Forfeited — ​ — ​ Expired ​ — ​ ​ — ​ ​ ​ Outstanding at December 31, 2022 47,327 ​ $ 21.47 ​ $ 500 ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending vested and expected to vest December 31, 2022 47,327 ​ $ 21.47 ​ $ 500 Exercisable at December 31, 2022 47,327 ​ 21.47 ​ 500 ​ All outstanding options were fully vested with no unrecognized compensation cost as of December 31, 2021. The intrinsic value of the options exercised for the years ended December 31, 2023, 2022, and 2021, was approximately $74 thousand, $94 thousand and $331 thousand, respectively. The weighted average remaining contractual term of outstanding options is approximately 1.6 years. ​ Restricted Stock Awards Restricted stock awards (“RSAs”) are granted to certain directors and executive officers and vest immediately. A summary of RSAs as of December 31, 2023 and 2022, and changes during the year then ended is presented below: ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ ​ ​ ​ ​ Restricted Stock ​ Weighted Average ​ ​ Awards ​ Grant Date Fair Restricted Stock Awards Outstanding Value Outstanding at January 1, 2023 24,824 ​ $ 28.49 Awarded 39,585 ​ 29.16 Vested (23,235) ​ 27.36 Forfeited — ​ — Outstanding at December 31, 2023 41,174 ​ $ 29.78 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ ​ ​ ​ ​ Restricted Stock ​ Weighted Average ​ ​ Awards ​ Grant Date Fair Restricted Stock Awards Outstanding Value Outstanding at January 1, 2022 — ​ $ — Awarded 39,267 ​ 29.21 Vested (14,443) ​ 30.46 Forfeited — ​ — Outstanding at December 31, 2022 24,824 ​ $ 28.49 ​ Unrecognized expense for non-vested RSAs totaled $370 thousand as of December 31, 2023, which is expected to be recognized over the weighted average remaining contractual maturity term of 3.0 years. ​ Performance Stock Units We have a long-term incentive plan where performance unit awards (“PSUs”) are granted to certain executive officers providing the opportunity to earn shares of common stock of the Company based on our performance compared to peers. Participants in the plan were collectively granted PSUs ranging from zero to 43,247 in 2023 and from zero to 43,800 in 2022. The PSUs granted will vest only if the performance measures are achieved over a three year performance period. Failure to achieve the performance measures will result in all or a portion of shares being forfeited. On the grant dates in 2023 and 2022, PSUs had a weighted average fair value per share of $30.64 and $28.49, respectively. Expense is recognized over the performance period and is adjusted for changes in probability of the Company achieving profitability metrics. The following table summarizes PSUs at target as of December 31, 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted Average ​ ​ Performance Stock ​ Grant Date Fair Performance Stock Units Units Outstanding Value Nonvested at January 1, 2023 78,435 ​ $ 25.70 Awarded 28,831 ​ 30.64 Vested and exercised (15,601) ​ 25.29 Forfeited (6,750) ​ 25.30 Nonvested at December 31, 2023 84,915 ​ $ 27.53 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted Average ​ ​ Performance Stock ​ Grant Date Fair Performance Stock Units Units Outstanding Value Nonvested at January 1, 2022 70,465 ​ $ 23.88 Awarded 29,200 ​ 28.49 Vested and exercised — ​ — Forfeited (21,230) ​ 23.35 Nonvested at December 31, 2022 78,435 ​ $ 25.70 ​ Unrecognized expense for non-vested PSUs totaled $1.3 million as of December 31, 2023, which is expected to be recognized over the weighted average remaining contractual maturity term of 2.8 years. PSUs do not carry an exercise price and therefore have no intrinsic value as of December 31, 2023. ​ Restricted Stock Units During 2023 and 2022, restricted stock units (“RSUs”) were granted to certain executive officers and senior vice presidents. Awards to executives vest annually over 3 years while awards to senior vice presidents cliff vest at the end of three years. The RSUs granted were valued The following table summarizes RSUs activity in 2023 and 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted Average ​ ​ Restricted Stock ​ Grant Date Fair ​ Units Outstanding Value Outstanding at January 1, 2023 ​ 115,816 $ 25.25 Granted ​ 36,354 ​ ​ 26.12 Vested and exercised ​ (43,341) ​ ​ 21.77 Forfeited ​ (6,134) ​ ​ 25.84 Outstanding at December 31, 2023 ​ 102,695 ​ $ 27.07 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted Average ​ ​ Restricted Stock ​ Grant Date Fair ​ Units Outstanding Value Outstanding at January 1, 2022 ​ 133,617 $ 23.48 Granted ​ 36,468 ​ ​ 28.51 Vested and exercised ​ (43,059) ​ ​ 22.88 Forfeited ​ (11,210) ​ ​ 23.46 Outstanding at December 31, 2022 ​ 115,816 ​ $ 25.25 ​ RSUs include cash-based restricted stock units (“CRSUs”), total CRSUs vested and exercised during 2023 and 2022 were 29,043 and 24,232 shares, respectively. Unrecognized expense for non-vested RSUs totaled $1.5 million as of December 31, 2023, which is expected to be recognized over the weighted average remaining contractual maturity term of 3.0 years. ​ Employee Stock Purchase Plan We maintain an employee stock purchase plan (“ESPP”) under which employees, through payroll deductions, are able to purchase shares of Company’s common stock. The purchase price is 92% of the lower of the market price on the first or last day of the offering period. The maximum number of shares issuable during any offering period is 200,000 shares; however, as of December 31, 2023, December 31, 2022 and December 31, 2021, there were 177,415, 179,079 and 167,502 shares available for issuance under the ESPP, respectively. Participants may not purchase more than 400 shares during any offering period and, in any event, no more than $25 thousand worth of common stock in any calendar year. The ESPP has been determined to be non-compensatory in nature. As a result, we expect that expenses related to the ESPP will not be material. During the years ended December 31, 2023, 2022 and 2021, there were 22,585, 20,921 and 19,481 shares of common stock issued under the ESPP, respectively.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	12 Months Ended
	Dec. 31, 2023
FAIR VALUE MEASUREMENTS
FAIR VALUE MEASUREMENTS	​ ​ NOTE 14. FAIR VALUE MEASUREMENTS Recurring Fair Value Measurements The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of December 31, 2023 and December 31, 2022, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Level 1 Level 2 Level 3 Total (in thousands) ​ Inputs ​ Inputs ​ Inputs ​ Fair Value Available for sale securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ — ​ $ 1,992 ​ $ — ​ $ 1,992 Mortgage-backed securities: ​ ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ — ​ ​ 193,282 ​ ​ — ​ ​ 193,282 US Government agency ​ — ​ 74,213 ​ — ​ 74,213 Private label ​ — ​ 59,051 ​ — ​ 59,051 Obligations of states and political subdivisions thereof ​ — ​ 110,168 ​ — ​ 110,168 Corporate bonds ​ — ​ 95,868 ​ — ​ 95,868 Loans held for sale ​ ​ — ​ ​ 2,189 ​ ​ — ​ ​ 2,189 Derivative assets ​ — ​ 21,775 ​ 63 ​ 21,838 Derivative liabilities ​ — ​ (18,587) ​ (20) ​ (18,607) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ Level 1 Level 2 Level 3 Total (in thousands) ​ Inputs ​ Inputs ​ Inputs ​ Fair Value Available for sale securities: ​ ​ ​ ​ ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ — ​ $ 2,660 ​ $ — ​ $ 2,660 Mortgage-backed securities: ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ — ​ ​ 215,027 ​ ​ — ​ ​ 215,027 US Government agency ​ — ​ 79,606 ​ — ​ 79,606 Private label ​ — ​ 60,154 ​ — ​ 60,154 Obligations of states and political subdivisions thereof ​ — ​ 107,737 ​ — ​ 107,737 Corporate bonds ​ — ​ 94,332 ​ — ​ 94,332 Loans held for sale ​ ​ — ​ ​ — ​ ​ — ​ ​ — Derivative assets ​ — ​ 30,039 ​ — ​ 30,039 Derivative liabilities ​ — ​ (25,228) ​ — ​ (25,228) ​ ​ Securities Available for Sale: ​ Loans Held for Sale: Derivative Assets and Liabilities ​ Cash Flow Hedges. ​ Interest Rate Lock Commitments. ​ Forward Sale Commitments . ​ Customer Loan Derivatives. ​ Although we have determined that the majority of the inputs used to value customer loan derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and counterparties. However, as of December 31, 2023, we assessed the significance of the impact of the credit valuation adjustments on the overall valuation of our derivative positions and determined that the credit valuation adjustments are not significant to the overall valuation of our derivatives. As a result, we determined that the derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy. ​ The table below presents the changes in Level 3 assets and liabilities that were measured at fair value on a recurring basis in 2023 and 2022. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets (Liabilities) ​ ​ Interest Rate Lock ​ Forward (in thousands) Commitments Commitments Year Ended December 31, 2023 ​ ​ Balance at beginning of period ​ $ — ​ $ — Realized gain recognized in non-interest income ​ 63 ​ — Balance at end of period ​ $ 63 ​ $ — ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2022 ​ ​ Balance at beginning of period ​ $ 283 ​ $ 15 Realized loss recognized in non-interest income ​ (283) ​ (7) Balance at end of period ​ $ — ​ $ 8 ​ Quantitative information about the significant unobservable inputs within Level 3 recurring assets and liabilities is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ ​ ​ ​ (in thousands, ​ December 31, ​ Valuation ​ Unobservable ​ Unobservable ​ except ratios) 2023 Techniques Inputs Input Value Assets (Liabilities) ​ ​ ​ ​ ​ ​ Interest Rate Lock Commitment $ 63 ​ Pull-through Rate Analysis Closing Ratio ​ 95 % ​ ​ ​ ​ Pricing Model ​ Origination Costs, per loan ​ $ 1.7 ​ ​ ​ ​ ​ ​ Discount Cash Flows ​ Mortgage Servicing Asset ​ ​ 1.0 % Total ​ $ 63 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ Significant ​ ​ December 31, ​ Valuation ​ Unobservable ​ Unobservable ​ (in thousands, except ratios) 2022 ​ Techniques Inputs Input Value ​ Assets (Liabilities) ​ ​ ​ ​ ​ ​ Interest Rate Lock Commitment $ 283 ​ Pull-through Rate Analysis Closing Ratio ​ 85 % ​ ​ ​ ​ Pricing Model ​ Origination Costs, per loan ​ $ 1.7 ​ ​ ​ ​ ​ ​ Discount Cash Flows ​ Mortgage Servicing Asset ​ ​ 1.0 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Forward Commitments ​ 15 ​ Quoted prices for similar loans in active markets Freddie Mac pricing system ​ $99.8 to $103.2 ​ Total ​ $ 298 ​ ​ ​ ​ ​ ​ ​ ​ ​ There were no level 3 assets and liabilities that were measured at fair value on a recurring basis in 2023 and 2022. Non-Recurring Fair Value Measurements We are required, on a non-recurring basis, to adjust the carrying value or provide valuation allowances for certain assets using fair value measurements in accordance with U.S. GAAP. The following is a summary of applicable non-recurring fair value measurements. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Measurement Date as of ​ ​ Dec 31, 2023 ​ Dec 31, 2022 ​ December 31, 2023 ​ December 31, 2023 ​ ​ Level 3 ​ Level 3 ​ Total ​ Level 3 (in thousands) Inputs Inputs Gains (Losses) Inputs Assets ​ ​ ​ ​ ​ ​ ​ Individually evaluated loans ​ $ 3,500 ​ $ 16,477 ​ $ (12,977) ​ December 2023 Capitalized servicing rights ​ 6,764 ​ ​ 6,845 ​ (81) December 2023 Premises held for sale ​ 1,154 ​ ​ 252 ​ 902 December 2023 Total ​ $ 11,418 ​ $ 23,574 ​ $ (12,156) ​ Quantitative information about the significant unobservable inputs within Level 3 non-recurring assets as of December 31, 2023 and December 31, 2022 is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands, except ratios) Fair Value December 31, 2023 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) Assets ​ ​ ​ ​ Individually evaluated loans ​ $ 2,437 Fair value of collateral-appraised value Loss severity ​ ​ 10% to 43% ​ ​ ​ ​ ​ ​ ​ Appraised value ​ ​ $80 to $965 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated loans ​ 1,063 Discount cash flow Discount rate ​ 3.25% to 7.13% ​ ​ ​ ​ ​ ​ ​ Cash flows ​ ​ $2 to $520 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capitalized servicing rights ​ 6,764 Discounted cash flow Constant prepayment rate ​ 7.20% ​ ​ ​ ​ Discount rate ​ 10.06% ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Premises held for sale ​ 1,154 Fair value of asset less selling costs Appraised value ​ ​ $1,223 ​ ​ ​ ​ Selling Costs ​ 6% ​ Total ​ $ 11,418 ​ ​ (a) Where dollar amounts are disclosed, the amounts represent the lowest and highest fair value of the respective assets in the population except for adjustments for market/property conditions, which represents the range of adjustments to individuals properties. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands, except ratios) Fair Value December 31, 2022 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) ​ Assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated loans ​ $ 13,587 Fair value of collateral-appraised value Loss severity ​ ​ 1% to 40% ​ ​ ​ ​ ​ ​ ​ Appraised value ​ ​ $80 to $3,859 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated loans ​ 2,890 Discount cash flow Discount rate ​ 3.63% to 6.38% ​ ​ ​ ​ ​ ​ ​ Cash flows ​ ​ $100 to $539 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capitalized servicing rights ​ 6,845 Discounted cash flow Constant prepayment rate ​ 7.29% ​ ​ ​ ​ Discount rate ​ 9.54% ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Premises held for sale ​ 252 Fair value of asset less selling costs Appraised value ​ ​ $267 ​ ​ ​ ​ ​ Selling Costs ​ 6% ​ Total ​ $ 23,574 ​ ​ ​ ​ ​ ​ ​ ​ (a) Where dollar amounts are disclosed, the amounts represent the lowest and highest fair value of the respective assets in the population except for adjustments for market/property conditions, which represents the range of adjustments to individuals properties. There were no Level 1 or Level 2 non-recurring fair value measurements for the periods ended December 31, 2023 and December 31, 2022. ​ Individually evaluated loans. ​ Capitalized loan servicing rights . ​ Other real estate owned or OREO. ​ Premises held for sale. ​ Summary of Estimated Fair Values of Financial Instruments The estimated fair values, and related carrying amounts, of our financial instruments are included in the table below. Certain financial instruments and all non-financial instruments are excluded from disclosure requirements. Accordingly, the aggregate fair value amounts presented herein may not necessarily represent the underlying fair value of the Company. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ Carrying ​ Fair ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 94,842 ​ $ 94,842 ​ $ 94,842 ​ $ — ​ $ — Securities available for sale ​ 534,574 ​ 534,574 ​ — ​ 534,574 ​ — FHLB stock ​ 14,834 ​ 14,834 ​ — ​ 14,834 ​ — Loans held for sale ​ ​ 2,189 ​ ​ 2,189 ​ ​ — ​ ​ 2,189 ​ ​ — Net loans ​ 2,999,049 ​ 2,832,173 ​ — ​ — ​ 2,832,173 Accrued interest receivable ​ 4,921 ​ 4,921 ​ — ​ 4,921 ​ — Cash surrender value of bank-owned life insurance policies ​ 80,037 ​ 80,037 ​ — ​ 80,037 ​ — Derivative assets ​ 21,838 ​ 21,838 ​ — ​ 21,775 ​ 63 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial Liabilities ​ ​ ​ ​ ​ Non-maturity deposits ​ $ 2,482,012 ​ $ 2,325,307 ​ $ — ​ $ 2,325,307 ​ $ — Time deposits ​ ​ 658,482 ​ ​ 651,855 ​ ​ — ​ ​ 651,855 ​ ​ — Securities sold under agreements to repurchase ​ ​ 38,504 ​ ​ 38,504 ​ ​ — ​ ​ 38,504 ​ ​ — FHLB advances ​ 232,579 ​ 232,375 ​ — ​ 232,375 ​ — Subordinated borrowings ​ 60,422 ​ 67,635 ​ — ​ 67,635 ​ — Derivative liabilities ​ 15,607 ​ 15,607 ​ — ​ 15,587 ​ 20 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ Carrying ​ Fair ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 92,295 ​ $ 92,295 ​ $ 92,295 ​ $ — ​ $ — Securities available for sale ​ 559,516 ​ 559,516 ​ — ​ 559,516 ​ — FHLB stock ​ 14,893 ​ 14,893 ​ — ​ 14,893 ​ — Loans held for sale ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Net loans ​ 2,902,690 ​ 2,774,863 ​ — ​ — ​ 2,774,863 Accrued interest receivable ​ 4,257 ​ 4,257 ​ — ​ 4,257 ​ — Cash surrender value of bank-owned life insurance policies ​ 81,197 ​ 81,197 ​ — ​ 81,197 ​ — Derivative assets ​ 30,039 ​ 30,039 ​ — ​ 30,039 ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial Liabilities ​ ​ ​ ​ ​ Non-maturity deposits ​ $ 2,719,992 ​ $ 2,309,555 ​ $ — ​ $ 2,309,555 ​ $ — Time deposits ​ ​ 323,439 ​ ​ 315,180 ​ ​ — ​ ​ 315,180 ​ ​ — Securities sold under agreements to repurchase ​ ​ 13,369 ​ ​ 13,369 ​ ​ — ​ ​ 13,369 ​ ​ — FHLB advances ​ 320,588 ​ 320,244 ​ — ​ 320,244 ​ — Subordinated borrowings ​ 60,289 ​ 66,846 ​ — ​ 66,846 ​ — Derivative liabilities ​ 25,228 ​ 25,228 ​ — ​ 25,228 ​ — ​

REVENUE FROM CONTRACTS WITH CUS

REVENUE FROM CONTRACTS WITH CUSTOMERS	12 Months Ended
	Dec. 31, 2023
REVENUE FROM CONTRACTS WITH CUSTOMERS
REVENUE FROM CONTRACTS WITH CUSTOMERS	​ NOTE 15. REVENUE FROM CONTRACTS WITH CUSTOMERS We have accounted for the various non-interest revenue streams and related contracts under ASC 606. Disaggregation of Revenue The following tables present disaggregation of our non-interest revenue by major business line and timing of revenue recognition for the transfer of products or services: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, (in thousands) 2023 2022 Non-interest income within the scope of ASC 606: ​ ​ Trust management fees ​ $ 12,766 ​ $ 13,022 Financial services fees ​ 1,517 ​ 1,551 Interchange fees ​ 7,845 ​ 7,736 Customer deposit fees ​ 6,280 ​ 5,935 Other customer service fees ​ 1,043 ​ 1,120 Total non-interest income within the scope of ASC 606 ​ ​ 29,451 ​ ​ 29,364 Total non-interest income not within the scope of ASC 606 ​ ​ 6,378 ​ ​ 5,957 Total non-interest income ​ $ 35,829 ​ $ 35,321 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, (in thousands) 2023 2022 Timing of Revenue Recognition ​ ​ Products and services transferred at a point in time ​ $ 15,751 ​ $ 15,552 Products and services transferred over time ​ 13,700 ​ 13,812 Total ​ $ 29,451 ​ $ 29,364 ​ Trust Management Fees The trust management business generates revenue through a range of fiduciary services including trust and estate administration, financial advice, and investment management to individuals, businesses, not-for-profit organizations, and municipalities. These fees are primarily earned over time as we charge our customers on a monthly or quarterly basis in accordance with investment advisory agreements. Fees are generally assessed based on a tiered scale of the market value of AUM at month end. Certain fees, such as bill paying fees, distribution fees, real estate sale fees, and supplemental tax service fees, are recorded as revenue at a point in time upon the completion of the service. ​ Financial Services Fees Bar Harbor Financial Services is a branch office of Osaic, an independent registered broker dealer offering securities and insurance products not affiliated with the Company or its subsidiaries. We have a revenue sharing agreement with Osaic for any financial service fee income generated. Financial services fees are recognized at a point in time upon the completion of service requirements. ​ Interchange Fees We earn interchange fees from transaction fees that merchants pay whenever a customer uses a debit card to make a purchase from their store. The fees are paid to the card-issuing bank to cover handling costs, fraud, bad debt costs and the risk involved in approving the payment. Interchange fees are generally recognized as revenue at a point in time upon the completion of a debit card transaction. ​ Customer Deposit Fees The customer deposit business offers a variety of deposit accounts with a range of interest rates, fee schedules and other terms, which are designed to meet the customer's financial needs. Additional depositor-related services provided to customers include ATM, bank-by-phone, internet banking, internet bill pay, mobile banking, and other cash management services which include remote deposit capture, ACH origination, and wire transfers. These customer deposit fees are generally recognized at a point in time upon the completion of the service. Other Customer Service Fees We have certain incentive and referral fee arrangements with independent third parties in which fees are earned for new account activity, product sales, or transaction volume generated for the respective third parties. We also earn a percentage of the fees generated from third-party credit card plans promoted through the Bank. Revenue from these incentive and referral fee arrangements is recognized over time using the right to invoice measure of progress. ​ Contract Balances with Customers The following table provides information about contract assets or receivables and contract liabilities or deferred revenues from contracts with customers: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ December 31, 2023 ​ December 31, 2022 Balances from contracts with customers only: ​ ​ Other Assets ​ $ 1,178 ​ $ 1,211 Other Liabilities ​ 1,769 ​ 2,345 ​ The timing of revenue recognition, billings and cash collections results in contract assets or receivables and contract liabilities or deferred revenue on the consolidated balance sheets. For most customer contracts, fees are deducted directly from customer accounts and, therefore, there is no associated impact on the accounts receivable balance. For certain types of service contracts, we have an unconditional right to consideration under the service contract and an accounts receivable balance is recorded for services completed. When consideration is received, or such consideration is unconditionally due, from a customer prior to transferring goods or services to the customer under the terms of a contract, a contract liability is recorded. Contract liabilities are recognized as revenue after control of the products or services is transferred to the customer and all revenue recognition criteria have been met. ​ Costs to Obtain and Fulfill a Contract ​ We currently expense contract costs for processing and administrative fees for debit card transactions. We also expense custody fees and transactional costs associated with securities transactions as well as third party tax preparation fees. We have elected the practical expedient in ASC 340-40-25-4, whereby we recognize the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets we otherwise would have recognized is one year or less.

LEASES

LEASES	12 Months Ended
	Dec. 31, 2023
LEASES
LEASES	​ NOTE 16. LEASES A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. Most of our leases are for branches, ATM locations, and office space and have terms extending through 2040. All leases are classified as operating leases, and are recognized on the consolidated balance sheets as a right-of-use (“ROU”) asset with a corresponding lease liability. The following table presents the consolidated statements of condition classification of the ROU assets and lease liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Classification December 31, 2023 December 31, 2022 Lease Right-of-Use Assets ​ ​ ​ ​ ​ Operating lease right-of-use assets Other assets ​ $ 6,874 ​ $ 8,078 ​ ​ ​ ​ ​ ​ ​ ​ ​ Lease Liabilities ​ ​ Operating lease liabilities Other liabilities ​ 7,322 ​ 8,501 ​ The calculated amount of the ROU assets and lease liabilities in the table above are impacted by the length of the lease term and the discount rate used for the present value of the minimum lease payments. The lease agreements often include one or more options to renew at our discretion. If at lease inception, we consider the exercising of a renewal option to be reasonably certain, we will include the extended term in the calculation of the ROU asset and lease liability. The following table presents the weighted average lease term and discount rate of the leases: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Weighted-average remaining lease term (in years) ​ ​ ​ ​ Operating leases ​ 6.28 ​ ​ 7.17 ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average discount rate ​ ​ ​ ​ Operating leases ​ 3.10 % ​ 3.09 % ​ ​ The following table represents lease costs and other lease information. As we have elected, for all classes of underlying assets, not to separate lease and non-lease components and instead to account for them as a single lease component, the variable lease cost primarily represents variable payments such as real estate taxes, common area maintenance and utilities. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended (in thousands) ​ December 31, 2023 December 31, 2022 ​ December 31, 2021 Lease Costs ​ ​ ​ ​ ​ Operating lease cost ​ $ 1,343 ​ $ 1,344 ​ $ 1,295 Variable lease cost ​ 485 ​ 402 ​ 229 Total lease cost ​ $ 1,828 ​ $ 1,746 ​ $ 1,524 ​ Future minimum payments for operating leases with initial or remaining terms of one year or more as of December 31, 2023 are, as follows: ​ ​ ​ ​ ​ (in thousands) Payments Twelve Months Ended: ​ December 31, 2024 ​ $ 1,316 December 31, 2025 ​ 1,092 December 31, 2026 ​ 987 December 31, 2027 ​ 864 December 31, 2028 ​ 726 Thereafter ​ 2,484 Total future minimum lease payments ​ 7,469 Amounts representing interest ​ (147) Present value of net future minimum lease payments ​ $ 7,322 ​

CONDENSED FINANCIAL STATEMENTS

CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY	12 Months Ended
	Dec. 31, 2023
CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY
CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY	​ ​ NOTE 17. CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY The condensed balance sheets of Bar Harbor Bankshares as of December 31, 2023 and 2022, and the condensed statements of income and cash flows for the years ended December 31, 2023, 2022 and 2021 are presented below: CONDENSED BALANCE SHEETS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, (in thousands) 2023 2022 Assets ​ ​ Cash ​ $ 7,850 ​ $ 7,350 Investment in subsidiaries ​ 484,574 ​ 447,937 Premises and equipment ​ 785 ​ 765 Other assets ​ 5,070 ​ 3,130 Total assets ​ $ 498,279 ​ $ 459,182 ​ ​ ​ ​ ​ ​ ​ Liabilities and Shareholders’ Equity ​ ​ Subordinated notes ​ $ 60,461 ​ $ 60,289 Accrued expenses ​ 5,759 ​ 5,443 Shareholders’ equity ​ 432,059 ​ 393,450 Total liabilities and shareholders’ equity ​ $ 498,279 ​ $ 459,182 ​ ​ CONDENSED STATEMENTS OF INCOME ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, (in thousands) 2023 2022 2021 Income: ​ ​ ​ ​ ​ ​ ​ ​ ​ Dividends from subsidiaries ​ $ 23,156 ​ $ 20,682 ​ $ 15,557 Other income ​ 1,142 ​ 976 ​ 740 Total income ​ 24,298 ​ 21,658 ​ 16,297 Interest expense ​ 3,691 ​ 2,981 ​ 2,632 Non-interest expense ​ 5,834 ​ 5,183 ​ 5,455 Total expense ​ 9,525 ​ 8,164 ​ 8,087 Income before taxes and equity in undistributed income of subsidiaries ​ 14,773 ​ 13,493 ​ 8,210 Income tax benefit ​ (1,985) ​ (1,709) ​ (1,741) Income before equity in undistributed income of subsidiaries ​ 16,758 ​ 15,202 ​ 9,951 Equity in undistributed income of subsidiaries ​ 28,094 ​ 28,355 ​ 29,348 Net income ​ $ 44,852 ​ $ 43,557 ​ $ 39,299 ​ ​ ​ CONDENSED STATEMENTS OF CASH FLOWS ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, (in thousands) 2023 2022 2021 Cash flows from operating activities: ​ ​ ​ ​ ​ ​ ​ ​ ​ Net income ​ $ 44,852 ​ $ 43,557 ​ $ 39,299 Adjustments to reconcile net income to net cash provided by (used in) operating activities: ​ ​ ​ Equity in undistributed income of subsidiaries ​ (28,094) ​ (28,355) ​ (29,348) Other, net ​ (1,537) ​ 3,187 ​ (5,582) Net cash provided by operating activities ​ 15,221 ​ 18,389 ​ 4,369 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash flows from investing activities: ​ ​ ​ Acquisitions, net of cash paid ​ — ​ — ​ — Purchase of securities ​ — ​ — ​ — Capital contribution to subsidiary ​ — ​ — ​ — Net cash (used in) investing activities ​ — ​ — ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash flows from financing activities: ​ ​ ​ Proceeds from issuance of subordinated debt ​ — ​ — ​ — Repayment of subordinated debt ​ — ​ — ​ — Net proceeds from common stock ​ 1,845 ​ 1,723 ​ 1,534 Net proceeds from reissuance of treasury stock ​ — ​ — ​ — Common stock cash dividends paid ​ (16,566) ​ (15,334) ​ (14,072) Net cash used in financing activities ​ (14,721) ​ (13,611) ​ (12,538) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net change in cash and cash equivalents ​ 500 ​ 4,778 ​ (8,169) Cash and cash equivalents at beginning of year ​ 7,350 ​ 2,572 ​ 10,741 Cash and cash equivalents at end of year ​ $ 7,850 ​ $ 7,350 ​ $ 2,572 ​

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	12 Months Ended
	Dec. 31, 2023
SUBSEQUENT EVENTS
SUBSEQUENT EVENTS	​ NOTE 18. SUBSEQUENT EVENTS There were no significant subsequent events between December 31, 2023 and through the date the financial statements are issued.

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2023
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of presentation	Basis of presentation:
Consolidation	Consolidation:
Reclassifications	Reclassifications:
Use of estimates	Use of estimates:
Subsequent Events	Subsequent Events:
Cash and Cash Equivalents	Cash and Cash Equivalents:
Securities	Securities: Premiums and discounts on securities are amortized and accreted over the term or to first call of the securities using the level yield method. Municipal security premiums are accreted over full term straight-line and discounts are amortized over the call term on a straight light basis. Gains and losses on the sale of securities are recognized at the trade date using the specific-identification method and are shown separately in the Consolidated Statements of Income.
Allowance for Credit Loss on AFS Debt Securities	Allowance for Credit Loss on AFS Debt Securities: municipality, agency, or organization associated with the underlying security. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance on AFS debt securities is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. When assessing an AFS debt security for credit loss, securities with identical CUSIPs are pooled together to assess for impairment using the average cost basis. Any impairment that has not been recorded through an allowance is recognized in other comprehensive income. A change in the allowance on AFS debt securities may be in full or a portion thereof, is recorded as expense (credit) within provision for credit losses on the consolidated statements of income. Losses are charged against the allowance when management believes an AFS debt security is uncollectible based on the above described analysis. As of December 31, 2023 and December 31, 2022, there were no allowances carried on AFS debt securities. Refer to Note 2 – Securities Available for Sale
Federal Home Loan Bank Stock	Federal Home Loan Bank Stock: FHLB stock is periodically evaluated for impairment based on the capital adequacy of the FHLB and its overall financial condition. Based on the capital adequacy, liquidity position and sustained profitability of the FHLB, there was no impairment related to the carrying amount of FHLB stock as of December 31, 2023 and 2022.
Loans Held for Sale	Loans Held for Sale:
Loans	Loans: ​ For originated loans, loan fees and certain direct origination costs are deferred and amortized into interest income over the contractual term of the loan using the level-yield method over the estimated lives of the related loans. When a loan is paid off, the unamortized portion of deferred fees or costs are recognized in interest income. Interest income on originated loans is accrued based upon the daily principal amount outstanding except for loans on non-accrual status. ​ For acquired loans, interest income is accrued based upon the daily principal amount outstanding and is then further adjusted by the accretion of any discount or amortization of any premium associated with the loan that was recognized based on the acquisition date fair value. When a loan is paid off, the unamortized portion of any premiums or discounts on loans are recognized in interest income.
Purchase Credit Deteriorated (PCD) Loans	Purchase Credit Deteriorated (PCD) Loans:
Non-performing loans	Non-performing loans: appropriate by management. Secured consumer other loans are written down to net realizable value and unsecured consumer loans are charged-off upon reaching 120 days past due. Commercial real estate loans and commercial and industrial loans that are 90 days or more past due are generally placed on non-accrual status, unless secured by sufficient cash or other assets immediately convertible to cash, and the loan is in the process of collection. Commercial real estate and commercial and industrial loans may be placed on non-accrual status prior to the 90 days delinquency date if considered appropriate by management. When a loan has been placed on non-accrual status, previously accrued and uncollected interest is reversed against interest on the loan. The interest on non-accrual loans is accounted for using the cash-basis or cost-recovery method depending on corresponding credit risk, until qualifying for return to accrual status. A loan can be returned to accrual status when collectability of principal is reasonably assured and the loan has performed for a period of time, a minimum of six months. Acquired loans that meet the criteria for non-accrual of interest prior to an acquisition are considered non-performing acquired loans that meet the criteria for non-accrual consistent with originated loans.
Loan Modifications to Borrowers Experiencing Financial Difficulty	Loan Modifications to Borrowers Experiencing Financial Difficulty: ​ However, performance prior to the modification, or significant events that coincide with the modification, are included in assessing whether the borrower can meet the new terms and may result in the loan being returned to accrual status at the time of loan modification or after a shorter performance period. If the borrower’s ability to meet the revised payment schedule is uncertain, the loan remains on non-accrual status.
Allowance for Credit Losses	Allowance for Credit Losses: The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of loans to present the net amount expected to be collected on the loans. Loans, or portions thereof, are charged off against the allowance when they are deemed uncollectible. Expected recoveries do not exceed the aggregate of amounts previously charged-off and expected to be charged- off. The allowance is comprised of reserves measured on a collective (pool) basis based on a lifetime loss-rate model when similar risk characteristics exist. Loans that do not share risk characteristics are evaluated on an individual basis, which generally includes larger non-accruing commercial loans. ​ The discounted cash flow (“DCF”) method is used to estimate expected credit losses for all loan portfolio segments measured on a collective (pool) basis. For each loan segment, cash flow projections are generated at the instrument level wherein payment expectations are adjusted for estimated prepayment speeds, probability of default, and loss given default. The modeling of prepayment speeds is based on historical internal data. ​ Regression analysis of historical internal and peer data is used to determine suitable loss drivers to utilize when modeling lifetime probability of default. This analysis also determines how expected probability of default and loss given default will react to forecasted levels of the loss drivers. For all loan pools utilizing the DCF method, management utilizes various economic indicators such as changes in unemployment rates, gross domestic product, real estate values, and other relevant factors as loss drivers. For all DCF models, management has determined that due to historic volatility in economic data, two quarters currently represents a reasonable and supportable forecast period, followed by a six-period reversion to historical mean levels for each of the various economic indicators. ​ The combination of adjustments for credit expectations (default and loss) and timing expectations (prepayment, curtailment, and time to recovery) produces an expected cash flow stream at the instrument level. Specific instrument effective yields are calculated, net of the impacts of prepayment assumptions, and the instrument expected cash flows are then discounted at that effective yield to produce an instrument-level Net Present Value (“NPV”). An allowance is established for the difference between the instrument’s NPV and amortized cost basis. ​ The allowance evaluation also considers various qualitative factors, such as: (i) changes to lending policies, underwriting standards and/or management personnel performing such functions, (ii) delinquency and other credit quality trends, (iii) credit risk concentrations, if any, (iv) changes to the nature of the Company's business impacting the loan portfolio, and (v) other external factors, that may include, but are not limited to, results of internal loan reviews, stress testing, examinations by bank regulatory agencies, or other events such as a natural disaster. ​ Arriving at an appropriate level of allowance involves a high degree of judgment. The determination of the adequacy of the allowance and provisioning for estimated losses is evaluated regularly based on review of loans, with particular emphasis on non-performing and other loans that management believes warrant special consideration. While management uses available information to recognize losses on loans, changing economic conditions and the economic prospects of the borrowers may necessitate future additions or reductions to the allowance.
Individually Evaluated Loans	Individually Evaluated Loans :
Accrued Interest	Accrued Interest
Allowance for off-balance sheet credit exposures	Allowance for off-balance sheet credit exposures :
Premises and Equipment	Premises and Equipment: estimated useful lives of related assets; generally five three eight years
Transfers of Financial Assets	Transfers of Financial Assets:
Other Real Estate Owned	Other Real Estate Owned:
Goodwill and Other Intangible Assets	Goodwill: ​ Other Intangibles: ​ The fair values of these assets are generally determined based on appraisals and are subsequently amortized on a straight-line basis or an accelerated basis over their estimated lives. Management assesses the recoverability of these intangible assets at least annually or whenever events or changes in circumstances indicate that their carrying value may not be recoverable. If the carrying amount exceeds fair value, an impairment charge is recorded to income.
Bank-Owned Life Insurance	Bank-Owned Life Insurance:
Capitalized Servicing Rights	Capitalized Servicing Right s : Capitalized servicing rights are initially recorded at fair value. Fair values are established by using a discounted cash flow model to calculate the present value of estimated future net servicing income. Changes in the fair value of capitalized servicing rights are primarily due to changes in valuation inputs, assumptions, and the collection and realization of expected cash flows. However, these capitalized servicing rights are amortized in proportion to and over the period of estimated net servicing income, which includes prepayment assumptions. An impairment analysis is prepared on a quarterly basis by estimating the fair value of the capitalized servicing rights and comparing that value to the carrying amount. A valuation allowance is established when the carrying amount of these capitalized servicing rights exceeds fair value. The capitalized servicing rights are included in other assets on the consolidated balance sheet.
Derivative Financial Instruments	Derivative Financial Instruments: Changes in the fair value of derivative instruments that are highly effective and qualify as cash flow hedge are recorded in other comprehensive income (loss). Any ineffective portion is recorded in earnings. For fair value hedges that are highly effective, the gain or loss on the derivative and the loss or gain on the hedged item attributable to the hedged risk are both recognized in earnings, with the differences (if any) representing hedge ineffectiveness. Management discontinues hedge accounting when it is determined that the derivative is no longer highly effective in offsetting changes of the hedged risk on the hedged item, or determines that the designation of the derivative as a hedging instrument is no longer appropriate. Net cash settlements on derivatives that qualify for hedge accounting are recorded in interest income or interest expense based on the item being hedged. Net cash settlements on derivatives that do not quality for hedge accounting are reporting in non-interest income. Cash flows on hedges are classified in the cash flow statement the same as cash flows of the items being hedged. Commitments to fund mortgage loans with borrowers (interest rate locks) and forward commitments for the future delivery of these mortgage loans for sale on the secondary market are classified as free standing derivatives. These derivatives are designed to hedge against inherent interest rate and pricing risk associated with selling loans. The commitments to lend generally terminate once the loan is funded, the lock period expires or the borrower decides not to contract for the loan. The forward commitments generally terminate once the loan is sold or the commitment period expires. These commitments are considered derivatives which are accounted for by recognizing their estimated fair value on the Consolidated Balance Sheet in either other assets or other liabilities.
Senior and Subordinated Borrowings	Senior and Subordinated Borrowings:
Off-Balance Sheet Financial Instruments	Off-Balance Sheet Financial Instruments:
Stock Based Compensation	Stock Based Compensation: Stock Based Compensation Plans o
Employee Stock Purchase Plan	Employee Stock Purchase Plan:
Post-retirement Plans	Post-retirement Plans: Employee Benefit Plans
Pension Plan	Pension Plan: Employee Benefit Plans Net periodic pension benefit costs include interest costs based on an assumed discount rate, the expected return on plan assets based on actuarially derived market-related values, and the amortization of net actuarial losses. Differences between expected and actual results in each year are included in the net actuarial gain or loss amount, which is recognized in other comprehensive income. The net actuarial gain or loss in excess of a 10% corridor is amortized in net periodic benefit cost over the average remaining service period of active participants in the Plans. The prior service credit is amortized over the average remaining service period to full eligibility for participating employees expected to receive benefits. ​ At the end of each year the Plans’ assets and obligations are examined to determine its funded status as of the end of the fiscal year and recognizes those changes in other comprehensive income, net of tax. The plans over or under funded status is recognized in the consolidated balance sheet as an asset or liability, respectively.
401(k) Plan	401(k) Plan :
Income Taxes	Income Taxes:
Treasury Stock	Treasury Stock:
Earnings Per Share	Earnings Per Share:
Revenue Recognition	Revenue Recognition: Revenue from Contracts with Customers
Wealth Management	Wealth Management: and the resulting in monthly fee income, based on the daily accrual of the market value of the investment accounts and the applicable fee rate.
Marketing Costs	Marketing Costs:
Segment Reporting	Segment Reporting:
Recent Accounting Pronouncements	Recent Accounting Pronouncements The following table provides a brief description of accounting standards that could have a material impact to the Company’s consolidated financial statements upon adoption: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Standard Description Required Date of Adoption Effect on financial statements Standards Adopted in 2023 ​ ​ ​ ASU 2022-02 Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings ("TDRs") and Vintage Disclosures ​ ​ The amendments in this update eliminate TDR recognition and measurement guidance and, instead, require that an entity evaluate (consistent with the accounting for other loan modifications) whether the modification represents a new loan or a continuation of an existing loan. The amendments enhance existing disclosure requirements and introduce new requirements related to certain modifications of receivables made to borrowers experiencing financial difficulty. ​ ​ January 1, 2023 ​ ​ The adoption of this ASU did not have a material impact on our consolidated financial statements. ASU 2023-02 Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method ​ ​ The amendments in this update permit reporting entities to elect to account for their tax equity investments, regardless of the tax credit program from which the income tax credits are received, using the proportional amortization method if certain conditions are met. ​ ​ December 15, 2023, including interim periods within the fiscal year ​ ​ The adoption of this ASU did not have a material impact on our consolidated financial statements. Standards Not Yet Adopted ​ ​ ​ ASU 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures ​ ​ The amendments in this update require that public business entities on an annual basis (1) disclose specific categories in the rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold (if the effect of those reconciling items is equal to or greater than 5 percent of the amount computed by multiplying pretax income [or loss] by the applicable statutory income tax rate). ​ ​ For public business entities, the amendments in this update are effective for ​ ​ We do not expect adoption of this ASU to have a material impact on our consolidated financial statements. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

SECURITIES AVAILABLE FOR SALE (

SECURITIES AVAILABLE FOR SALE (Tables)	12 Months Ended
	Dec. 31, 2023
SECURITIES AVAILABLE FOR SALE
Summary of Securities Available for Sale	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ Unrealized ​ ​ ​ (in thousands) Amortized Cost Gains Losses Fair Value December 31, 2023 ​ ​ ​ ​ Debt securities: ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ 2,021 ​ $ — ​ $ (29) ​ $ 1,992 Mortgage-backed securities and collateralized mortgage obligations: ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ 223,602 ​ ​ 12 ​ ​ (30,332) ​ ​ 193,282 US Government agency ​ 85,005 ​ 145 ​ (10,937) ​ 74,213 Private label ​ 60,888 ​ 18 ​ (1,855) ​ 59,051 Obligations of states and political subdivisions thereof ​ 119,857 ​ 4,515 ​ (14,204) ​ 110,168 Corporate bonds ​ 105,552 ​ 19 ​ (9,703) ​ 95,868 Total securities available for sale ​ $ 596,925 ​ $ 4,709 ​ $ (67,060) ​ $ 534,574 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross ​ Gross ​ ​ ​ ​ ​ ​ ​ ​ Unrealized ​ Unrealized ​ ​ ​ (in thousands) Amortized Cost Gains Losses Fair Value December 31, 2022 ​ ​ ​ ​ Debt securities: ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ 2,692 ​ $ 5 ​ $ (37) ​ $ 2,660 Mortgage-backed securities and collateralized mortgage obligations: ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ 249,838 ​ ​ 14 ​ ​ (34,825) ​ ​ 215,027 US Government agency ​ 90,318 ​ 16 ​ (10,728) ​ 79,606 Private label ​ 64,056 ​ 34 ​ (3,936) ​ 60,154 Obligations of states and political subdivisions thereof ​ 121,939 ​ 7,149 ​ (21,351) ​ 107,737 Corporate bonds ​ 102,505 ​ 33 ​ (8,206) ​ 94,332 Total securities available for sale ​ $ 631,348 ​ $ 7,251 ​ $ (79,083) ​ $ 559,516
Schedule of Amortized Cost and Estimated Fair Value of Available for Sale (AFS) Securities, Segregated by Contractual Maturity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Available for sale (in thousands) Amortized Cost Fair Value Within 1 year $ 3,038 ​ $ 3,017 Over 1 year to 5 years ​ 50,471 ​ 47,138 Over 5 years to 10 years ​ 45,706 ​ 44,887 Over 10 years ​ 128,215 ​ 112,986 Total bonds and obligations ​ 227,430 ​ 208,028 Mortgage-backed securities and collateralized mortgage obligations ​ 369,495 ​ 326,546 Total securities available for sale ​ $ 596,925 ​ $ 534,574
Schedule of Gains and Losses from Sale of AFS Securities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Proceeds from Sale ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ of Securities ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Available for Sale Realized Gains Realized Losses Net 2023 ​ $ 2,000 ​ $ 34 ​ $ — ​ $ 34 2022 ​ ​ 7,130 ​ ​ 151 ​ ​ (98) ​ ​ 53 2021 ​ 92,723 ​ ​ 2,933 ​ ​ (63) ​ ​ 2,870
Schedule of Securities with Unrealized Losses, Segregated by the Duration of Continuous Unrealized Loss Positions	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less Than Twelve Months ​ Over Twelve Months ​ Total ​ ​ Gross ​ ​ Gross ​ ​ Gross ​ ​ ​ ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Unrealized ​ Fair (in thousands) Losses Value Losses Value Losses Value December 31, 2023 ​ ​ ​ ​ ​ ​ Debt securities: ​ ​ ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ 1 ​ $ 1,084 ​ $ 28 ​ $ 907 ​ $ 29 ​ $ 1,991 Mortgage-backed securities and collateralized mortgage obligations: ​ ​ ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ 10 ​ ​ 3,439 ​ ​ 30,322 ​ ​ 188,611 ​ ​ 30,332 ​ ​ 192,050 US Government agency ​ 2 ​ 120 ​ 10,935 ​ 68,891 ​ 10,937 ​ 69,011 Private label ​ — ​ 26 ​ 1,855 ​ 59,007 ​ 1,855 ​ 59,033 Obligations of states and political subdivisions thereof ​ 26 ​ 3,099 ​ 14,178 ​ 101,036 ​ 14,204 ​ 104,135 Corporate bonds ​ 156 ​ 4,913 ​ 9,547 ​ 84,950 ​ 9,703 ​ 89,863 Total securities available for sale ​ $ 195 ​ $ 12,681 ​ $ 66,865 ​ $ 503,402 ​ $ 67,060 ​ $ 516,083 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Less Than Twelve Months ​ Over Twelve Months ​ Total ​ Gross ​ ​ Gross ​ ​ Gross ​ ​ ​ ​ Unrealized ​ Fair ​ Unrealized ​ Fair ​ Unrealized ​ Fair (in thousands) ​ Losses ​ Value ​ Losses ​ Value ​ Losses ​ Value December 31, 2022 ​ ​ ​ ​ ​ ​ Debt securities: ​ ​ ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ 32 ​ $ 435 ​ $ 6 ​ $ 790 ​ $ 38 ​ $ 1,225 Mortgage-backed securities and collateralized mortgage obligations: ​ ​ ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ 7,005 ​ ​ 82,483 ​ ​ 27,820 ​ ​ 127,745 ​ ​ 34,825 ​ ​ 210,228 US Government agency ​ 2,870 ​ 42,430 ​ 7,857 ​ 34,198 ​ 10,727 ​ 76,628 Private label ​ 841 ​ 15,694 ​ 3,095 ​ 44,396 ​ 3,936 ​ 60,090 Obligations of states and political subdivisions thereof ​ 7,990 ​ 48,799 ​ 13,361 ​ 55,702 ​ 21,351 ​ 104,501 Corporate bonds ​ 4,733 ​ 65,279 ​ 3,473 ​ 25,027 ​ 8,206 ​ 90,306 Total securities available for sale ​ $ 23,471 ​ $ 255,120 ​ $ 55,612 ​ $ 287,858 ​ $ 79,083 ​ $ 542,978
Summary of Securities Pledged as Collateral	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ December 31, 2022 ​ Carrying Estimated Carrying Estimated (in thousands) ​ Value ​ Fair Value ​ Value ​ Fair Value Securities pledged for deposits ​ $ 24,347 ​ $ 21,341 ​ $ 26,807 ​ $ 23,430 Securities pledged for repurchase agreements ​ 18,841 ​ 16,230 ​ 21,001 ​ 17,964 Securities pledged for borrowings (1) ​ 113,775 ​ 95,318 ​ 40,686 ​ 33,962 Total securities pledged ​ $ 156,963 ​ $ 132,889 ​ $ 88,494 ​ $ 75,356 (1) The Bank pledged securities as collateral for certain borrowing arrangements with the Federal Home Loan Bank of Boston and Federal Reserve Bank of Boston.

LOANS AND ALLOWANCE FOR CREDI_2

LOANS AND ALLOWANCE FOR CREDIT LOSSES (Tables)	12 Months Ended
	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of Loans	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, (in thousands) 2023 2022 Commercial construction ​ $ 154,048 ​ $ 117,577 Commercial real estate owner occupied ​ 310,015 ​ 244,814 Commercial real estate non-owner occupied ​ 1,144,566 ​ 1,146,674 Tax exempt ​ 43,688 ​ 42,879 Commercial and industrial ​ 310,883 ​ 297,112 Residential real estate ​ 940,334 ​ 954,968 Home equity ​ 87,683 ​ 90,865 Consumer other ​ 7,832 ​ 7,801 Total loans ​ 2,999,049 ​ 2,902,690 Allowance for credit losses ​ 28,142 ​ 25,860 Net loans ​ $ 2,970,907 ​ $ 2,876,830
Summary of Unamortized Net Costs and Premiums	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ December 31, (in thousands) 2023 2022 Net unamortized loan origination costs ​ $ 3,039 ​ $ 3,184 Net unamortized fair value discount on acquired loans ​ (2,891) ​ (3,506) Total ​ $ 148 ​ $ (322)
Schedule of Activity in the Allowance for Credit Losses	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At or for the Year Ended December 31, 2023 ​ ​ Balance at ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning of ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at (in thousands) Period ​ Charge Offs Recoveries Provision End of Period Commercial construction ​ $ 2,579 ​ $ — ​ $ — ​ $ 1,682 ​ $ 4,261 Commercial real estate owner occupied ​ 2,189 ​ — ​ 142 ​ 532 ​ 2,863 Commercial real estate non-owner occupied ​ 9,341 ​ — ​ — ​ 102 ​ 9,443 Tax exempt ​ 93 ​ — ​ — ​ 26 ​ 119 Commercial and industrial ​ 3,493 ​ (664) ​ 149 ​ 281 ​ 3,259 Residential real estate ​ 7,274 ​ (8) ​ 31 ​ 55 ​ 7,352 Home equity ​ 811 ​ (12) ​ 6 ​ (38) ​ 767 Consumer other ​ 80 ​ (289) ​ 19 ​ 268 ​ 78 Total ​ $ 25,860 ​ $ (973) ​ $ 347 ​ $ 2,908 ​ $ 28,142 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At or for the Year Ended December 31, 2022 ​ ​ Balance at ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning of ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at (in thousands) Period ​ Charge Offs Recoveries Provision End of Period Commercial construction ​ $ 2,111 ​ $ — ​ $ — ​ $ 468 ​ $ 2,579 Commercial real estate owner occupied ​ 2,751 ​ — ​ 120 ​ (682) ​ 2,189 Commercial real estate non-owner occupied ​ 5,650 ​ — ​ — ​ 3,691 ​ 9,341 Tax exempt ​ 86 ​ — ​ — ​ 7 ​ 93 Commercial and industrial ​ 5,369 ​ (8) ​ ​ 341 ​ (2,209) ​ 3,493 Residential real estate ​ 5,862 ​ (84) ​ 106 ​ 1,390 ​ 7,274 Home equity ​ 814 ​ (7) ​ 25 ​ (21) ​ 811 Consumer other ​ 75 ​ (267) ​ 12 ​ 260 ​ 80 Total ​ $ 22,718 ​ $ (366) ​ $ 604 ​ $ 2,904 ​ $ 25,860 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At or for the Year Ended December 31, 2021 ​ ​ Balance at ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Beginning of ​ Impact of ASC ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at (in thousands) Period ​ 326 Charge Offs Recoveries Provision End of Period Commercial construction ​ $ 824 ​ $ 1,196 ​ $ — ​ $ 18 ​ $ 73 ​ $ 2,111 Commercial real estate owner occupied ​ 1,783 ​ 708 ​ (403) ​ 290 ​ 373 ​ 2,751 Commercial real estate non-owner occupied ​ 7,864 ​ (2,008) ​ — ​ 4 ​ (210) ​ 5,650 Tax exempt ​ 58 ​ 40 ​ — ​ — ​ (12) ​ 86 Commercial and industrial ​ 3,137 ​ 2,996 ​ (59) ​ ​ 77 ​ (782) ​ 5,369 Residential real estate ​ 5,010 ​ 1,732 ​ (77) ​ 159 ​ (962) ​ 5,862 Home equity ​ 285 ​ 603 ​ (154) ​ 51 ​ 29 ​ 814 Consumer other ​ 121 ​ (39) ​ (205) ​ 9 ​ 189 ​ 75 Total ​ $ 19,082 ​ $ 5,228 ​ $ (898) ​ $ 608 ​ $ (1,302) ​ $ 22,718 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​
Schedule of Loans by Risk Rating	The following table presents our loans by year of origination, loan segmentation and risk indicator as of December 31, 2023: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ 2023 ​ 2022 ​ 2021 ​ 2020 ​ 2019 ​ Prior ​ Total Commercial construction ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 14,040 ​ $ 99,115 ​ $ 35,978 ​ $ 3,992 ​ $ — ​ $ 923 ​ $ 154,048 Special mention ​ — ​ — ​ — ​ — ​ — ​ — ​ — Substandard ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ $ 14,040 ​ $ 99,115 ​ $ 35,978 ​ $ 3,992 ​ $ — ​ $ 923 ​ $ 154,048 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate owner occupied ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 57,603 ​ $ 61,015 ​ $ 43,228 ​ $ 20,209 ​ $ 20,462 ​ $ 91,187 ​ $ 293,704 Special mention ​ 160 ​ 387 ​ 7,488 ​ 1,596 ​ — ​ 3,066 ​ 12,697 Substandard ​ — ​ — ​ — ​ — ​ — ​ 3,497 ​ 3,497 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 117 ​ ​ 117 Total ​ $ 57,763 ​ $ 61,402 ​ $ 50,716 ​ $ 21,805 ​ $ 20,462 ​ $ 97,867 ​ $ 310,015 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate non-owner occupied ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 41,270 ​ $ 353,613 ​ $ 199,311 ​ $ 127,231 ​ $ 78,759 ​ $ 238,973 ​ $ 1,039,157 Special mention ​ 7,809 ​ — ​ 14,134 ​ 37,249 ​ 15,246 ​ 17,108 ​ 91,546 Substandard ​ — ​ — ​ — ​ — ​ — ​ 13,863 ​ 13,863 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Total ​ $ 49,079 ​ $ 353,613 ​ $ 213,445 ​ $ 164,480 ​ $ 94,005 ​ $ 269,944 ​ $ 1,144,566 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tax exempt ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 6,340 ​ $ 8,468 ​ $ 787 ​ $ 208 ​ $ 590 ​ $ 27,295 ​ $ 43,688 Special mention ​ — ​ — ​ — ​ — ​ — ​ — ​ — Substandard ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ $ 6,340 ​ $ 8,468 ​ $ 787 ​ $ 208 ​ $ 590 ​ $ 27,295 ​ $ 43,688 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial and industrial ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 80,942 ​ $ 69,402 ​ $ 22,205 ​ $ 38,824 ​ $ 14,739 ​ $ 77,273 ​ $ 303,385 Special mention ​ 364 ​ 1,446 ​ — ​ 776 ​ 28 ​ 3,588 ​ 6,202 Substandard ​ 58 ​ 94 ​ 186 ​ 109 ​ 95 ​ 532 ​ 1,074 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 87 ​ ​ 135 ​ ​ 222 Total ​ $ 81,364 ​ $ 70,942 ​ $ 22,391 ​ $ 39,709 ​ $ 14,949 ​ $ 81,528 ​ $ 310,883 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 5 ​ ​ 659 ​ ​ 664 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ 2023 ​ 2022 ​ 2021 ​ 2020 ​ 2019 ​ Prior ​ Total Residential real estate ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 72,395 ​ $ 194,109 ​ $ 165,434 ​ $ 96,016 ​ $ 62,648 ​ $ 345,823 ​ $ 936,425 Nonperforming ​ — ​ — ​ 41 ​ — ​ 234 ​ 3,634 ​ 3,909 Total ​ $ 72,395 ​ $ 194,109 ​ $ 165,475 ​ $ 96,016 ​ $ 62,882 ​ $ 349,457 ​ $ 940,334 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 8 ​ ​ 8 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Home equity ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 15,582 ​ $ 15,334 ​ $ 7,873 ​ $ 6,633 ​ $ 4,800 ​ $ 36,652 ​ $ 86,874 Nonperforming ​ — ​ — ​ — ​ — ​ — ​ 809 ​ 809 Total ​ $ 15,582 ​ $ 15,334 ​ $ 7,873 ​ $ 6,633 ​ $ 4,800 ​ $ 37,461 ​ $ 87,683 Current period gross write-offs ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 12 ​ ​ 12 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consumer other ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 4,128 ​ $ 1,787 ​ $ 696 ​ $ 301 ​ $ 51 ​ $ 864 ​ $ 7,827 Nonperforming ​ — ​ — ​ 4 ​ 1 ​ — ​ — ​ 5 Total ​ $ 4,128 ​ $ 1,787 ​ $ 700 ​ $ 302 ​ $ 51 ​ $ 864 ​ $ 7,832 Current period gross write-offs ​ ​ — ​ ​ 52 ​ ​ 18 ​ ​ 5 ​ ​ — ​ ​ 214 ​ ​ 289 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Loans ​ $ 300,691 ​ $ 804,770 ​ $ 497,365 ​ $ 333,145 ​ $ 197,739 ​ $ 865,339 ​ $ 2,999,049 ​ ​ The following table presents our loans by year of origination, loan segmentation and risk indicator as of December 31, 2022: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ 2022 ​ 2021 ​ 2020 ​ 2019 ​ 2018 ​ Prior ​ Total Commercial construction ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 49,722 ​ $ 38,837 ​ $ 2,865 ​ $ 1,011 ​ $ 964 ​ $ — ​ $ 93,399 Special mention ​ — ​ — ​ 24,178 ​ — ​ — ​ — ​ 24,178 Substandard ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ $ 49,722 ​ $ 38,837 ​ $ 27,043 ​ $ 1,011 ​ $ 964 ​ $ — ​ $ 117,577 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate owner occupied ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 22,371 ​ $ 11,290 ​ $ 23,014 ​ $ 31,352 ​ $ 46,398 ​ $ 103,295 ​ $ 237,720 Special mention ​ — ​ — ​ 243 ​ 666 ​ 173 ​ 1,870 ​ 2,952 Substandard ​ — ​ — ​ — ​ — ​ 77 ​ 3,924 ​ 4,001 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 141 ​ ​ 141 Total ​ $ 22,371 ​ $ 11,290 ​ $ 23,257 ​ $ 32,018 ​ $ 46,648 ​ $ 109,230 ​ $ 244,814 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial real estate non-owner occupied ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 370,856 ​ $ 228,414 ​ $ 145,096 ​ $ 88,111 ​ $ 35,213 ​ $ 238,395 ​ $ 1,106,085 Special mention ​ — ​ 21,390 ​ — ​ 127 ​ 911 ​ 16,612 ​ 39,040 Substandard ​ — ​ — ​ — ​ — ​ — ​ 1,404 ​ 1,404 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 145 ​ ​ 145 Total ​ $ 370,856 ​ $ 249,804 ​ $ 145,096 ​ $ 88,238 ​ $ 36,124 ​ $ 256,556 ​ $ 1,146,674 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Tax exempt ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 8,686 ​ $ 1,020 ​ $ 252 ​ $ 772 ​ $ 13,231 ​ $ 18,918 ​ $ 42,879 Special mention ​ — ​ — ​ — ​ — ​ — ​ — ​ — Substandard ​ — ​ — ​ — ​ — ​ — ​ — ​ — Total ​ $ 8,686 ​ $ 1,020 ​ $ 252 ​ $ 772 ​ $ 13,231 ​ $ 18,918 ​ $ 42,879 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial and industrial ​ ​ ​ ​ ​ ​ ​ Risk rating: ​ ​ ​ ​ ​ ​ ​ Pass ​ $ 83,151 ​ $ 26,948 ​ $ 62,835 ​ $ 27,491 ​ $ 9,511 ​ $ 81,316 ​ $ 291,252 Special mention ​ 1,450 ​ — ​ 53 ​ 803 ​ 201 ​ 619 ​ 3,126 Substandard ​ — ​ 113 ​ 111 ​ 65 ​ 299 ​ 2,106 ​ 2,694 Doubtful ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ 40 ​ ​ 40 Total ​ $ 84,601 ​ $ 27,061 ​ $ 62,999 ​ $ 28,359 ​ $ 10,011 ​ $ 84,081 ​ $ 297,112 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ 2022 ​ 2021 ​ 2020 ​ 2019 ​ 2018 ​ Prior ​ Total Residential real estate ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 195,320 ​ $ 177,480 ​ $ 111,021 ​ $ 69,170 ​ $ 47,797 ​ $ 349,795 ​ $ 950,583 Nonperforming ​ — ​ 45 ​ — ​ 49 ​ 641 ​ 3,650 ​ 4,385 Total ​ $ 195,320 ​ $ 177,525 ​ $ 111,021 ​ $ 69,219 ​ $ 48,438 ​ $ 353,445 ​ $ 954,968 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Home equity ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 17,107 ​ $ 10,638 ​ $ 8,139 ​ $ 6,830 ​ $ 6,997 ​ $ 40,191 ​ $ 89,902 Nonperforming ​ — ​ — ​ — ​ — ​ — ​ 963 ​ 963 Total ​ $ 17,107 ​ $ 10,638 ​ $ 8,139 ​ $ 6,830 ​ $ 6,997 ​ $ 41,154 ​ $ 90,865 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Consumer other ​ ​ ​ ​ ​ ​ ​ Performing ​ $ 4,321 ​ $ 1,341 ​ $ 863 ​ $ 265 ​ $ 64 ​ $ 942 ​ $ 7,796 Nonperforming ​ — ​ — ​ 5 ​ — ​ — ​ — ​ 5 Total ​ $ 4,321 ​ $ 1,341 ​ $ 868 ​ $ 265 ​ $ 64 ​ $ 942 ​ $ 7,801 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Loans ​ $ 752,984 ​ $ 517,516 ​ $ 378,675 ​ $ 226,712 ​ $ 162,477 ​ $ 864,326 ​ $ 2,902,690
Summary of Past Due Loans	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 (in thousands) 30-59 60-89 90+ Total Past Due Current Total Loans Commercial construction ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 154,048 ​ $ 154,048 Commercial real estate owner occupied ​ — ​ — ​ — ​ — ​ 310,015 ​ 310,015 Commercial real estate non-owner occupied ​ — ​ — ​ 103 ​ 103 ​ 1,144,463 ​ 1,144,566 Tax exempt ​ — ​ — ​ — ​ — ​ 43,688 ​ 43,688 Commercial and industrial ​ 465 ​ 59 ​ 330 ​ 854 ​ 310,029 ​ 310,883 Residential real estate ​ 1,520 ​ 627 ​ 1,999 ​ 4,146 ​ 936,188 ​ 940,334 Home equity ​ 600 ​ — ​ 337 ​ 937 ​ 86,746 ​ 87,683 Consumer other ​ 10 ​ 2 ​ — ​ 12 ​ 7,820 ​ 7,832 Total ​ $ 2,595 ​ $ 688 ​ $ 2,769 ​ $ 6,052 ​ $ 2,992,997 ​ $ 2,999,049 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 (in thousands) 30-59 60-89 90+ Total Past Due Current Total Loans Commercial construction ​ $ — ​ $ — ​ $ — ​ $ — ​ $ 117,577 ​ $ 117,577 Commercial real estate owner occupied ​ 385 ​ — ​ — ​ 385 ​ 244,429 ​ 244,814 Commercial real estate non-owner occupied ​ 45 ​ 145 ​ 139 ​ 329 ​ 1,146,345 ​ 1,146,674 Tax exempt ​ — ​ — ​ — ​ — ​ 42,879 ​ 42,879 Commercial and industrial ​ 169 ​ — ​ 9 ​ 178 ​ 296,934 ​ 297,112 Residential real estate ​ 803 ​ 348 ​ 2,029 ​ 3,180 ​ 951,788 ​ 954,968 Home equity ​ 216 ​ 160 ​ 246 ​ 622 ​ 90,243 ​ 90,865 Consumer other ​ 41 ​ 8 ​ — ​ 49 ​ 7,752 ​ 7,801 Total ​ $ 1,659 ​ $ 661 ​ $ 2,423 ​ $ 4,743 ​ $ 2,897,947 ​ $ 2,902,690
Summary of Non-Accrual Loans	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ ​ ​ ​ Nonaccrual With No ​ 90+ Days Past (in thousands) Nonaccrual Related Allowance Due and Accruing Commercial construction ​ $ — ​ $ — ​ $ — Commercial real estate owner occupied ​ 103 ​ 44 ​ — Commercial real estate non-owner occupied ​ 340 ​ 224 ​ — Tax exempt ​ — ​ — ​ — Commercial and industrial ​ 363 ​ 6 ​ — Residential real estate ​ 3,908 ​ 1,131 ​ 118 Home equity ​ 809 ​ 1 ​ 22 Consumer other ​ 5 ​ — ​ — Total ​ $ 5,528 ​ $ 1,406 ​ $ 140 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ ​ ​ Nonaccrual With No ​ 90+ Days Past (in thousands) Nonaccrual Related Allowance Due and Accruing Commercial construction ​ $ — ​ $ — ​ $ — Commercial real estate owner occupied ​ 439 ​ 360 ​ — Commercial real estate non-owner occupied ​ 550 ​ 411 ​ — Tax exempt ​ — ​ — ​ — Commercial and industrial ​ 207 ​ 145 ​ — Residential real estate ​ 4,385 ​ 1,361 ​ 202 Home equity ​ 963 ​ 57 ​ 14 Consumer other ​ 5 ​ — ​ — Total ​ $ 6,549 ​ $ 2,334 ​ $ 216
Schedule of amortized cost basis of collateral-dependent loans	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ December 31, 2022 (in thousands) Real Estate Other Real Estate Other Commercial construction ​ $ — ​ $ — ​ $ — ​ $ — Commercial real estate owner occupied ​ 104 ​ — ​ 439 ​ — Commercial real estate non-owner occupied ​ 340 ​ — ​ 550 ​ — Tax exempt ​ — ​ — ​ — ​ — Commercial and industrial ​ 229 ​ 134 ​ 91 ​ 116 Residential real estate ​ 3,908 ​ — ​ 4,385 ​ — Home equity ​ 808 ​ — ​ 963 ​ — Consumer other ​ 5 ​ — ​ 5 ​ — Total ​ $ 5,394 ​ $ 134 ​ $ 6,433 ​ $ 116
Schedule of amortized cost basis of of loans experiencing financial difficulty and modification	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ Principal Forgiveness ​ Payment Delay ​ Term Extension ​ Interest Rate Reduction ​ Combination Interest Rate Reduction and Term Extension ​ % of Total Class of Loans Twelve Months Ended December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial construction ​ $ — ​ $ — ​ $ — ​ $ — ​ $ — ​ — % Commercial real estate owner occupied ​ — ​ — ​ — ​ — ​ — ​ — ​ Commercial real estate non-owner occupied ​ — ​ — ​ — ​ — ​ — ​ — ​ Tax exempt ​ — ​ — ​ — ​ — ​ — ​ — ​ Commercial and industrial ​ — ​ 65 ​ 184 ​ — ​ — ​ 0.08 ​ Residential real estate ​ — ​ — ​ — ​ 99 ​ — ​ 0.01 ​ Home equity ​ — ​ — ​ — ​ — ​ — ​ — ​ Consumer other ​ — ​ — ​ — ​ — ​ — ​ — ​ Total ​ $ — ​ $ 65 ​ $ 184 ​ $ 99 ​ $ — ​ 0.01 %
Schedule of Financial Effect Loan Modifications	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ Weighted-Average Months of Payment Delay ​ Weighted-Average Months of Term Extension ​ ​ Weighted-Average Interest Rate Reduction Twelve Months Ended December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Commercial construction ​ ​ — ​ ​ — ​ ​ — % Commercial real estate owner occupied ​ ​ — ​ ​ — ​ ​ — ​ Commercial real estate non-owner occupied ​ ​ — ​ ​ — ​ ​ — ​ Tax exempt ​ ​ — ​ ​ — ​ ​ — ​ Commercial and industrial ​ ​ 3.00 ​ ​ 13.45 ​ ​ — ​ Residential real estate ​ ​ — ​ ​ — ​ ​ 1.38 ​ Home equity ​ ​ — ​ ​ — ​ ​ — ​ Consumer other ​ ​ — ​ ​ — ​ ​ — ​ Total ​ ​ 3.00 ​ ​ 13.45 ​ ​ 1.38 %
Schedule of Loans to Related Parties	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ 2023 ​ 2022 Beginning balance ​ $ 4,763 ​ $ 3,379 Changes in composition (1) ​ — ​ ​ 112 New loans ​ — ​ ​ 1,576 Less: repayments ​ (718) ​ ​ (304) Ending balance ​ $ 4,045 ​ $ 4,763 (1) Adjustments to reflect changes in status of directors and officers for each year presented.
Schedule of Servicing Rights Activity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At or for the Twelve Months Ended ​ ​ December 31, (in thousands) 2023 2022 Balance at beginning of year ​ $ 3,383 ​ $ 3,673 Additions ​ 338 ​ 421 Amortization ​ (560) ​ (711) Balance at end of year ​ $ 3,161 ​ $ 3,383 ​
Unfunded Loan Commitment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Schedule of Activity in the Allowance for Credit Losses	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ At or for the Years Ended December 31, (in thousands) ​ 2023 2022 2021 Beginning Balance ​ $ 3,910 ​ $ 2,152 ​ $ 359 Impact of ASC 326 ​ ​ — ​ ​ — ​ ​ 1,616 Provision for credit losses ​ (85) ​ 1,758 ​ 177 Ending Balance ​ $ 3,825 ​ $ 3,910 ​ $ 2,152

PREMISES AND EQUIPMENT (Tables)

PREMISES AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2023
PREMISES AND EQUIPMENT
Premises and Equipment	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Estimated Useful (in thousands, except years) ​ 2023 ​ 2022 Life Land ​ $ 3,882 ​ $ 4,934 N/A Buildings and improvements ​ 60,168 ​ 56,239 5-39 years Furniture and equipment ​ 17,630 ​ 16,225 3-8 years Premises and equipment, gross ​ 81,680 ​ 77,398 Accumulated depreciation ​ (33,393) ​ (29,776) Premises and equipment, net ​ $ 48,287 ​ $ 47,622

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES (Tables)	12 Months Ended
	Dec. 31, 2023
GOODWILL AND OTHER INTANGIBLES
Schedule of Goodwill	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Balance at beginning of year ​ $ 119,477 ​ $ 119,477 Acquisition ​ — ​ — Balance at end of year ​ $ 119,477 ​ $ 119,477
Schedule of Finite-Lived Intangible Assets	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ ​ Gross ​ Accumulated ​ Net Intangible (in thousands) Intangible Assets Amortization Assets Core deposit intangible (non-maturity deposits) ​ $ 9,483 ​ $ (5,686) ​ $ 3,797 Customer list and other intangibles ​ 2,118 ​ (1,046) ​ 1,072 Total ​ $ 11,601 ​ $ (6,732) ​ $ 4,869 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2022 ​ ​ Gross ​ Accumulated ​ Net Intangible (in thousands) Intangible Assets Amortization Assets Core deposit intangible (non-maturity deposits) ​ $ 9,483 ​ $ (4,948) ​ $ 4,535 Customer list and other intangibles ​ 2,118 ​ (852) ​ 1,266 Total ​ $ 11,601 ​ $ (5,800) ​ $ 5,801
Schedule of Future Amortization Expense	​ ​ ​ ​ ​ ​ ​ Other Intangible (in thousands) Assets 2024 ​ $ 932 2025 ​ 932 2026 ​ 932 2027 ​ 932 2028 ​ 959 and thereafter ​ 182 Total ​ $ 4,869 ​

DEPOSITS (Tables)

DEPOSITS (Tables)	12 Months Ended
	Dec. 31, 2023
DEPOSITS.
Summary of Time Deposits	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) December 31, 2023 December 31, 2022 Time less than $100,000 ​ $ 381,902 ​ $ 157,263 Time $100,000 through $250,000 ​ 163,933 ​ 118,655 Time $250,000 or more ​ 154,425 ​ 47,521 Total ​ $ 700,260 ​ $ 323,439
Time Deposit Maturities	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) December 31, 2023 ​ December 31, 2022 Within 1 year ​ $ 670,961 ​ $ 262,338 Over 1 year to 2 years ​ 17,000 ​ 37,937 Over 2 years to 3 years ​ 6,932 ​ 12,936 Over 3 years to 4 years ​ 3,434 ​ 5,410 Over 4 years to 5 years ​ 1,795 ​ 4,319 Over 5 years ​ 138 ​ 499 Total ​ $ 700,260 ​ $ 323,439

BORROWED FUNDS (Tables)

BORROWED FUNDS (Tables)	12 Months Ended
	Dec. 31, 2023
BORROWED FUNDS
Schedule of Borrowed Funds	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ December 31, 2022 ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Weighted ​ (dollars in thousands) Carrying Value Average Rate ​ Carrying Value Average Rate Short-term borrowings ​ ​ ​ ​ ​ ​ ​ Advances from the FHLB ​ $ 232,300 5.46 % ​ $ 318,000 3.84 % Advances from the FRB BTFP ​ ​ 30,000 ​ 4.90 ​ ​ ​ — ​ — ​ Other borrowings ​ 8,465 0.13 ​ ​ 13,369 0.13 ​ Total short-term borrowings ​ 270,765 2.88 ​ ​ 331,369 2.20 ​ Long-term borrowings ​ ​ ​ ​ Advances from the FHLB ​ 279 4.39 ​ ​ 2,588 0.48 ​ Subordinated borrowings ​ 60,461 6.22 ​ ​ 60,289 4.95 ​ Total long-term borrowings ​ 60,740 6.21 ​ ​ 62,877 4.76 ​ Total ​ $ 331,505 3.24 % ​ $ 394,246 2.45 %
Summary of Maturities of FHLB Advances	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted Average (in thousands, except rates) ​ Amount ​ Rate 2024 ​ $ 232,300 5.46 % 2025 ​ — — ​ 2026 ​ — — ​ 2027 ​ — — ​ 2028 ​ — — ​ Thereafter ​ 279 4.39 ​ Total FHLB advances ​ $ 232,579 5.46 %
Schedule of Repurchase Agreements	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ December 31, 2023 ​ December 31, 2022 Customer Repurchase Agreements ​ ​ US Government-sponsored enterprises ​ $ 8,465 ​ $ 13,369 Total ​ $ 8,465 ​ $ 13,369 ​

EMPLOYEE BENEFIT PLANS (Tables)

EMPLOYEE BENEFIT PLANS (Tables)	12 Months Ended
	Dec. 31, 2023
Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Change in projected benefit obligation: ​ ​ ​ ​ ​ ​ Projected benefit obligation at beginning of year ​ $ 6,245 $ 8,601 Interest cost ​ 318 ​ 236 Actuarial Gain/(loss) ​ 119 ​ (2,114) Benefits paid ​ (317) ​ (326) Settlements ​ — ​ (152) Projected benefit obligation at end of year ​ 6,365 ​ 6,245 ​ ​ ​ ​ ​ ​ ​ Change in fair value of plan assets: ​ ​ Fair value of plan assets at beginning of year ​ 9,044 ​ 12,422 Expected return on plan assets ​ 622 ​ (2,900) Benefits paid ​ (317) ​ (326) Settlements ​ — ​ (152) Fair value of plan assets at end of year ​ 9,349 ​ 9,044 ​ ​ ​ ​ ​ ​ ​ Overfunded status ​ $ (2,984) $ (2,799) ​ ​ ​ ​ ​ ​ ​ Amounts recognized in consolidated balance sheet: ​ ​ Other assets ​ $ 2,984 $ 2,799
Schedule of Net Benefit Costs	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Interest cost ​ $ 318 ​ $ 236 Expected return on plan assets ​ (355) ​ (612) Unrecognized loss ​ 53 ​ — Net periodic pension benefit ​ $ 16 ​ $ (376) ​ Amounts recognized in other comprehensive income for the years ended December 31, 2023 and 2022 included: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Net actuarial loss (gain) ​ $ (148) ​ $ 1,391 Recognized loss ​ (53) ​ — Net period pension benefit (credit) ​ 16 ​ (376) Total recognized in other comprehensive income ​ $ (185) ​ $ 1,015
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss)	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Net actuarial (gain) loss ​ $ (148) ​ $ 1,391 Recognized loss ​ (53) ​ — Prior service cost ​ — ​ — Amounts Recognized in accumulated other comprehensive (gain) loss (pre-tax) ​ $ (201) ​ $ 1,391
Schedule of Assumptions Used	​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 Projected benefit obligation ​ ​ Discount rate 5.00 % ​ 5.23 % Net periodic pension cost ​ ​ ​ ​ ​ ​ Discount rate 5.23 % ​ 2.80 % Long-term rate of return on plan assets 4.00 ​ 5.00 ​
Schedule of Allocation of Plan Assets	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 (in thousands) Total Level 1 Level 2 Equity mutual funds: ​ ​ ​ ​ Large-cap ​ $ 680 ​ $ 680 ​ $ — Mid-cap ​ 195 ​ 195 ​ — Small-cap ​ 199 ​ 199 ​ — International ​ 391 ​ 391 ​ — Fixed income funds: ​ ​ ​ Fixed-income - core plus ​ — ​ — ​ — Intermediate duration ​ — ​ — ​ — Long duration ​ ​ 6,698 ​ ​ 6,698 ​ ​ — Common stock ​ 663 ​ 663 ​ — Common/collective trusts - large-cap ​ 180 ​ — ​ 180 Cash equivalents - money market ​ 343 ​ 343 ​ — Total ​ $ 9,349 ​ $ 9,169 ​ $ 180 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2022 (in thousands) Total Level 1 Level 2 Equity mutual funds: ​ ​ ​ Large-cap ​ $ 660 ​ $ 660 ​ $ — Mid-cap ​ 210 ​ 210 ​ — Small-cap ​ 214 ​ 214 ​ — International ​ 420 ​ 420 ​ — Fixed income funds: ​ ​ ​ Long duration ​ ​ 6,294 ​ ​ 6,294 ​ ​ — Common stock ​ 724 ​ 724 ​ — Common/collective trusts - large-cap ​ 206 ​ — ​ 206 Cash equivalents - money market ​ 316 ​ 316 ​ — Total ​ $ 9,044 ​ $ 8,838 ​ $ 206
Schedule of Expected Benefit Payments	​ ​ ​ ​ ​ (in thousands) Payments 2024 ​ $ 342 2025 ​ 337 2026 ​ 402 2027 ​ 404 2028 ​ 423 2029-2033 ​ 2,233 Total ​ $ 4,141
Non-qualified Supplemental Executive Retirement Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Change in benefit obligation: ​ ​ Projected benefit obligation at beginning of year ​ $ 2,093 ​ $ 2,606 Service cost ​ — ​ — Interest cost ​ 97 ​ 54 Actuarial (gain) loss ​ (5) ​ (307) Benefits paid ​ (260) ​ (260) Projected benefit obligation at end of year ​ $ 1,925 ​ $ 2,093 ​ ​ ​ ​ ​ ​ ​ Change in fair value of plan assets: ​ ​ Fair value of plan assets at beginning of year ​ $ — ​ $ — Expected return on plan assets ​ — ​ — Contributions by employer ​ 260 ​ 260 Benefits paid ​ (260) ​ (260) Fair value of plan assets at end of year ​ $ — ​ $ — ​ ​ ​ ​ ​ ​ ​ Underfunded status ​ $ 1,925 ​ $ 2,093 ​ ​ ​ ​ ​ ​ ​ Amounts recognized in consolidated balance sheet ​ ​ Other liabilities ​ $ 1,925 ​ $ 2,093
Schedule of Net Benefit Costs	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Interest cost ​ $ 97 ​ $ 54 Expected return on plan assets ​ — ​ — Amortization of unrecognized actuarial loss ​ 7 ​ 37 Net periodic benefit cost ​ $ 104 ​ $ 91 ​ ​ Amounts recognized in other comprehensive income for the years ended December 31, 2023 and 2022 included: ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Net actuarial loss (gain) ​ $ 100 ​ $ (382) Amortization of unrecognized actuarial loss ​ (7) ​ (37) Total recognized in other comprehensive loss (gain) ​ $ 93 ​ $ (419)
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss)	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Accumulated other comprehensive loss at beginning of the year (pre-tax) ​ ​ 180 ​ ​ 599 Actuarial loss (gain) ​ 100 ​ (382) Amortization of actuarial loss ​ (7) ​ (37) Accumulated other comprehensive loss at end of year (pre-tax) ​ $ 273 ​ $ 180
Schedule of Assumptions Used	​ ​ ​ ​ ​ ​ ​ ​ 2023 2022 Discount rate beginning of year 4.92 % 2.12 % Discount rate end of year 4.72 4.92 ​
Schedule of Expected Benefit Payments	​ ​ ​ ​ ​ (in thousands) Payments 2024 ​ $ 260 2025 ​ 231 2026 ​ 221 2027 ​ 221 2028 ​ 221 2029-2033 ​ 1,104 Total ​ $ 2,258

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2023
INCOME TAXES
Schedule of Components of Income Tax Expense (Benefit)	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 2021 Current: ​ ​ ​ Federal tax expense ​ $ 10,704 ​ $ 10,444 ​ $ 7,796 State tax expense ​ 2,247 ​ 1,551 ​ 1,106 Total current tax expense ​ 12,951 ​ 11,995 ​ 8,902 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Deferred tax (benefit) expense ​ (686) ​ (707) ​ 427 Total income tax expense ​ $ 12,265 ​ $ 11,288 ​ $ 9,329
Schedule of Effective Income Tax Rate Reconciliation	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 ​ 2021 (in thousands, except ratios) ​ Amount ​ Rate ​ Amount ​ Rate ​ Amount ​ Rate Statutory tax rate $ 11,995 21.00 % $ 11,517 21.00 % $ 10,210 21.00 % Increase (decrease) resulting from: ​ ​ ​ ​ ​ ​ State taxes, net of federal benefit ​ 1,539 2.69 ​ 1,477 2.69 ​ 1,280 2.63 Tax exempt interest ​ (1,042) (1.82) ​ (1,003) (1.83) ​ (1,240) (2.55) Federal tax credits ​ (471) (0.82) ​ (241) (0.44) ​ (582) (1.20) Officers' life insurance ​ (578) (1.01) ​ (498) (0.91) ​ (466) (0.96) Gain on disposal of low income housing tax credit investments ​ — — ​ — — ​ — — Stock-based compensation plans ​ 17 0.03 ​ (16) (0.03) ​ (73) (0.15) Other ​ 805 ​ 1.40 ​ 52 0.10 ​ 200 0.42 Effective tax rate ​ $ 12,265 21.47 % $ 11,288 20.58 % $ 9,329 19.19 %
Schedule of Deferred Tax Assets and Liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2023 ​ 2022 (in thousands) ​ Assets ​ Liabilities ​ Assets ​ Liabilities Allowance for credit losses $ 6,593 $ — $ 5,964 $ — Deferred compensation ​ 3,678 ​ — ​ 3,812 ​ — Unrealized gain or loss on securities available for sale ​ 14,702 ​ — ​ 16,586 ​ — Unrealized gain or loss on derivatives ​ 312 ​ — ​ 539 ​ — Depreciation ​ — ​ 1,101 ​ — ​ 1,723 Deferred loan origination fees, net ​ — ​ 129 ​ 129 ​ — Non-accrual interest ​ 632 ​ — ​ 600 ​ — Branch acquisition costs and goodwill ​ — ​ 1,987 ​ — ​ 1,644 Core deposit intangible ​ — ​ 689 ​ — ​ 806 Acquisition fair value adjustments ​ 232 ​ — ​ 213 ​ — Prepaid expenses ​ — ​ 297 ​ — ​ 271 Mortgage servicing rights ​ — ​ 741 ​ — ​ 780 Equity compensation ​ 1,016 ​ — ​ 736 ​ — Prepaid pension ​ — ​ 669 ​ — ​ 616 Contract incentives ​ 564 ​ — ​ 766 ​ — Right of use asset ​ — ​ 1,611 ​ — ​ 1,863 Lease liability ​ 1,716 ​ — ​ 1,961 ​ — Other ​ 758 ​ — ​ 840 ​ — Total ​ $ 30,203 ​ $ 7,224 ​ $ 32,146 ​ $ 7,703

DERIVATIVE FINANCIAL INSTRUME_2

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES (Tables)	12 Months Ended
	Dec. 31, 2023
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES
Schedule of Information About Derivative Assets and Liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ Notional ​ Average ​ Fair Value ​ Location Fair ​ ​ Amount ​ Maturity ​ Asset (Liability) Value Asset ​ (in thousands) (in years) (in thousands) (Liability) Cash flow hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on wholesale funding ​ $ 75,000 ​ 1.0 ​ $ 2,803 ​ Other assets Interest rate swap on variable rate loans ​ ​ 50,000 ​ ​ 2.2 ​ ​ (3,459) ​ Other liabilities Total cash flow hedges ​ 125,000 ​ ​ ​ ​ (656) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair value hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ 37,190 ​ 5.6 ​ 3,844 ​ Other assets Total fair value hedges ​ 37,190 ​ ​ ​ ​ 3,844 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Economic hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Forward sale commitments ​ 5,000 ​ — ​ (20) ​ Other liabilities Customer Loan Swaps-MNA Counterparty ​ ​ 184,826 ​ ​ 5.0 ​ ​ (14,842) ​ Other liabilities Customer Loan Swaps-RPA Counterparty ​ ​ 142,199 ​ ​ 4.9 ​ ​ (286) ​ Other liabilities Customer Loan Swaps-Customer ​ ​ 327,025 ​ ​ 4.9 ​ ​ 15,128 ​ Other assets Total economic hedges ​ 659,050 ​ ​ ​ ​ (20) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-hedging derivatives: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate lock commitments ​ 3,153 ​ 0.1 ​ 63 ​ Other assets Total non-hedging derivatives ​ 3,153 ​ ​ ​ ​ 63 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 824,393 ​ ​ ​ ​ $ 3,231 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ Notional ​ Average ​ Fair Value ​ Location Fair ​ ​ Amount ​ Maturity ​ Asset (Liability) Value Asset ​ (in thousands) (in years) (in thousands) (Liability) Cash flow hedges: ​ ​ ​ ​ ​ Interest rate swap on wholesale funding ​ $ 75,000 ​ 2.0 ​ $ 4,978 ​ Other assets Interest rate swap on variable rate loans ​ ​ 50,000 ​ ​ 3.2 ​ ​ (4,941) ​ Other liabilities Total cash flow hedges ​ 125,000 ​ ​ ​ ​ 37 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair value hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ 37,190 ​ 6.6 ​ 4,774 ​ Other assets Total fair value hedges ​ 37,190 ​ ​ ​ ​ 4,774 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Economic hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Forward sale commitments ​ ​ — ​ — ​ — ​ Other assets Customer Loan Swaps-MNA Counterparty ​ ​ 191,987 ​ ​ 5.8 ​ ​ (20,287) ​ Other liabilities Customer Loan Swaps-RPA Counterparty ​ ​ 113,928 ​ ​ 6.0 ​ ​ — ​ Other liabilities Customer Loan Swaps-Customer ​ ​ 305,914 ​ ​ 5.9 ​ ​ 20,287 ​ Other assets Total economic hedges ​ 611,829 ​ ​ ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-hedging derivatives: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate lock commitments ​ — ​ — ​ — ​ Other assets Total non-hedging derivatives ​ — ​ ​ ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 774,019 ​ ​ ​ ​ $ 4,811 ​ ​
Schedule of Amounts Recorded On The Balance Sheet	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cumulative Amount of Fair ​ ​ Location of Hedged Item on ​ Carrying Amount of Hedged ​ Value Hedging Adjustment in ​ Balance Sheet Assets Carrying Amount December 31, 2023 ​ ​ Interest rate swap on securities Securities available for sale ​ $ 32,680 ​ $ (4,510) ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ Interest rate swap on securities Securities available for sale ​ $ 30,045 ​ $ (7,145)
Schedule of Derivative Instruments Gain (Loss)	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2023 ​ Amount of ​ Amount of ​ ​ ​ ​ Gain (Loss) ​ ​ ​ Gain (Loss) ​ ​ ​ ​ ​ ​ Recognized in ​ ​ ​ Reclassified ​ Location of ​ Amount of ​ ​ Other ​ Location of Gain (Loss) ​ from Other ​ Gain (Loss) ​ Gain (Loss) ​ ​ Comprehensive ​ Reclassified from Other ​ Comprehensive ​ Recognized in ​ Recognized (in thousands) Income Comprehensive Income Income Income in Income Cash flow hedges: ​ ​ ​ Interest rate swap on wholesale funding ​ $ (1,687) ​ Interest expense ​ $ — Interest expense ​ $ 3,062 Interest rate swap on variable rate loans ​ ​ 1,157 ​ Interest income ​ ​ — ​ Interest income ​ ​ (2,167) Total cash flow hedges ​ (530) ​ ​ — ​ 895 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair value hedges: ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ 1,314 Interest income ​ — Interest income ​ 1,359 Total fair value hedges ​ 1,314 ​ ​ — ​ 1,359 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Economic hedges: ​ ​ ​ ​ ​ ​ Forward commitments ​ — Other income ​ — Mortgage banking income ​ (20) Total economic hedges ​ — ​ ​ — ​ (20) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-hedging derivatives: ​ ​ ​ ​ ​ ​ Interest rate lock commitments ​ — Other expense ​ — Mortgage banking income ​ (20) Total non-hedging derivatives ​ — ​ ​ — ​ (20) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 784 ​ ​ ​ $ — ​ $ 2,214 ​ (1) As of December 31, 2023, we do not expect any gains or losses from accumulated other comprehensive income into earnings within the next 12 months. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2022 ​ Amount of ​ Amount of ​ ​ ​ ​ Gain (Loss) ​ ​ ​ Gain (Loss) ​ ​ ​ ​ ​ ​ Recognized in ​ ​ ​ Reclassified ​ Location of ​ Amount of ​ ​ Other ​ Location of Gain (Loss) ​ from Other ​ Gain (Loss) ​ Gain (Loss) ​ ​ Comprehensive ​ Reclassified from Other ​ Comprehensive ​ Recognized in ​ Recognized (in thousands) ​ Income ​ Comprehensive Income ​ Income ​ Income ​ in Income Cash flow hedges: ​ ​ ​ Interest rate swap on wholesale funding ​ $ 3,922 Interest expense ​ $ — Interest expense ​ $ 475 Interest rate swap on variable rate loans ​ ​ (3,218) ​ Interest income ​ ​ — ​ Interest income ​ ​ (601) Total cash flow hedges ​ ​ 704 ​ ​ ​ — ​ ​ (126) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair value hedges: ​ ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ — Interest income ​ — Interest income ​ 140 Total economic hedges ​ ​ — ​ ​ ​ — ​ 140 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Economic hedges: ​ ​ ​ ​ ​ ​ ​ Forward commitments ​ — Other income ​ — Mortgage banking income ​ (15) Total economic hedges ​ ​ — ​ ​ ​ — ​ (15) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-hedging derivatives: ​ ​ ​ ​ ​ ​ Interest rate lock commitments ​ — Other income ​ — Mortgage banking income ​ (283) Total non-hedging derivatives ​ ​ — ​ ​ ​ — ​ (283) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total ​ $ 704 ​ $ — ​ $ (284)
Schedule of Gain Loss in Statement of Income	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2023 ​ ​ Interest and Dividend Income ​ Interest Expense ​ ​ ​ (in thousands) Loans ​ Securities and other Deposits ​ Borrowings Non-interest Income Income and expense line items presented in the consolidated statements of income $ 149,420 ​ $ 24,762 ​ $ 38,232 ​ $ 18,275 ​ $ 35,829 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The effects of cash flow and fair value hedging: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gain (loss) on cash flow hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on wholesale funding ​ ​ — ​ ​ — ​ ​ — ​ ​ 3,062 ​ ​ — Interest rate swap on variable rate loans ​ (2,167) ​ ​ — ​ — ​ ​ — ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gain (loss) on fair value hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ ​ — ​ ​ 1,359 ​ ​ — ​ ​ — ​ ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2022 ​ ​ Interest and Dividend Income ​ Interest Expense ​ ​ ​ (in thousands) Loans ​ Securities and other Deposits ​ Borrowings Non-interest Income Income and expense line items presented in the consolidated statements of income $ 107,797 ​ $ 18,729 ​ $ 7,344 ​ $ 5,501 ​ $ 35,321 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The effects of cash flow and fair value hedging: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gain (loss) on cash flow hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on wholesale funding ​ ​ — ​ ​ — ​ ​ — ​ ​ 475 ​ ​ — Interest rate swap on variable rate loans ​ (601) ​ ​ — ​ — ​ ​ — ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gain (loss) on fair value hedges: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Interest rate swap on securities ​ ​ — ​ ​ 140 ​ ​ — ​ ​ — ​ ​ —
Schedule of Offsetting Liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Gross Amounts Offset in the Consolidated Balance Sheet ​ ​ Derivative ​ ​ ​ Cash Collateral ​ ​ ​ (in thousands) Liabilities Derivative Assets Pledged Net Amount As of December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ Customer Loan Derivatives: ​ ​ ​ ​ MNA counterparty ​ $ (14,842) ​ $ 14,842 ​ $ — ​ $ — RPA counterparty ​ (286) ​ 286 ​ — ​ — Total ​ $ (15,128) ​ $ 15,128 ​ $ — ​ $ —

OTHER COMMITMENTS, CONTINGENC_2

OTHER COMMITMENTS, CONTINGENCIES, AND OFF-BALANCE SHEET ACTIVITIES (Tables)	12 Months Ended
	Dec. 31, 2023
OTHER COMMITMENTS, CONTINGENCIES, AND OFF-BALANCE SHEET ACTIVITIES
Schedule of Loss Contingencies by Contingency	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 Commitments to originate new loans ​ $ 55,163 ​ $ 51,371 Unused funds on commercial and other lines of credit ​ 202,516 ​ 265,587 Unadvanced funds on home equity lines of credit ​ ​ 118,794 ​ ​ 122,295 Unadvanced funds on construction and real estate loans ​ 188,794 ​ 247,382 Commercial and standby letters of credit ​ ​ 4,217 ​ ​ 4,370 Letters of credit securing municipal deposits ​ ​ 232,500 ​ ​ 228,900 Total ​ $ 801,984 ​ $ 919,905

SHAREHOLDERS' EQUITY AND EARN_2

SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE (Tables)	12 Months Ended
	Dec. 31, 2023
SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE
Schedule of Actual and Required Capital Ratios	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ ​ ​ ​ ​ ​ ​ ​ Minimum Regulatory ​ ​ ​ Actual ​ Capital Requirements ​ (in thousands, except ratios) Amount Ratio ​ Amount Ratio ​ Company (consolidated) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total capital to risk-weighted assets ​ $ 450,160 ​ 14.24 % ​ $ 252,888 ​ 8.00 % Common equity tier 1 capital to risk-weighted assets ​ 357,574 ​ 11.31 ​ ​ 142,249 ​ 4.50 ​ Tier 1 capital to risk-weighted assets ​ 378,194 ​ 11.96 ​ ​ 189,666 ​ 6.00 ​ Tier 1 capital to average assets (leverage ratio) ​ 378,194 ​ 9.70 ​ ​ 156,022 ​ 4.00 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Bank ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total capital to risk-weighted assets ​ $ 441,278 ​ 13.97 % ​ $ 252,642 ​ 8.00 % Common equity tier 1 capital to risk-weighted assets ​ 409,312 ​ 12.96 ​ ​ 142,111 ​ 4.50 ​ Tier 1 capital to risk-weighted assets ​ 409,312 ​ 12.96 ​ ​ 189,482 ​ 6.00 ​ Tier 1 capital to average assets (leverage ratio) ​ 409,312 ​ 10.50 ​ ​ 155,908 ​ 4.00 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ Minimum Regulatory ​ ​ ​ Actual ​ Capital Requirements ​ (in thousands, except ratios) Amount Ratio ​ Amount Ratio ​ Company (consolidated) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total capital to risk-weighted assets ​ $ 416,900 ​ 13.50 % ​ $ 247,041 ​ 8.00 % Common equity tier 1 capital to risk-weighted assets ​ 326,513 ​ 10.57 ​ ​ 138,960 ​ 4.50 ​ Tier 1 capital to risk-weighted assets ​ 347,133 ​ 11.24 ​ ​ 185,281 ​ 6.00 ​ Tier 1 capital to average assets (leverage ratio) ​ 347,133 ​ 9.21 ​ ​ 150,772 ​ 4.00 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Bank ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total capital to risk-weighted assets ​ $ 410,053 ​ 13.29 % ​ $ 246,812 ​ 8.00 % Common equity tier 1 capital to risk-weighted assets ​ 380,286 ​ 12.33 ​ ​ 138,832 ​ 4.50 ​ Tier 1 capital to risk-weighted assets ​ 380,286 ​ 12.33 ​ ​ 185,110 ​ 6.00 ​ Tier 1 capital to average assets (leverage ratio) ​ 380,286 ​ 10.10 ​ ​ 150,655 ​ 4.00 ​
Schedule of Components of Accumulated Other Comprehensive Loss	​ ​ ​ ​ ​ ​ ​ ​ (in thousands) December 31, 2023 December 31, 2022 Accumulated other comprehensive loss, before tax: ​ ​ Net unrealized loss on AFS securities ​ $ (62,351) ​ $ (71,832) Net unrealized loss on hedging derivatives ​ (1,322) ​ (2,333) Net unrealized loss on post-retirement plans ​ (1,540) ​ (1,691) ​ ​ ​ ​ ​ ​ ​ Income taxes related to items of accumulated other comprehensive loss: ​ ​ Net unrealized loss on AFS securities ​ 14,702 ​ 16,586 Net unrealized loss on hedging derivatives ​ 312 ​ 539 Net unrealized loss on post-retirement plans ​ 337 ​ 391 Accumulated other comprehensive loss ​ $ (49,862) ​ $ (58,340)
Schedule of Components of Other Comprehensive Income (Loss)	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Before Tax Tax Effect Net of Tax Year Ended December 31, 2023 ​ ​ ​ Net unrealized gain on AFS securities: ​ ​ ​ Net unrealized gain arising during the period ​ $ 9,515 ​ $ (1,892) ​ $ 7,623 Less: reclassification adjustment for gains realized in net income ​ 34 ​ (8) ​ 26 Net unrealized gain on AFS securities ​ 9,481 ​ (1,884) ​ 7,597 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized gain on hedging derivatives: ​ ​ ​ ​ Net unrealized gain arising during the period ​ 1,011 ​ (227) ​ 784 Less: reclassification adjustment for gains realized in net income ​ — ​ — ​ — Net unrealized gain on hedging derivatives ​ 1,011 ​ (227) ​ 784 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized gain on post-retirement plans: ​ ​ ​ Net unrealized gain arising during the period ​ 135 ​ (38) ​ 97 Less: reclassification adjustment for gains realized in net income ​ — ​ — ​ — Net unrealized gain on post-retirement plans ​ 135 ​ (38) ​ 97 Other comprehensive income ​ $ 10,627 ​ $ (2,149) ​ $ 8,478 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2022 ​ ​ ​ Net unrealized loss on AFS securities: ​ ​ ​ Net unrealized loss arising during the period ​ $ (74,359) ​ $ 17,169 ​ $ (57,190) Less: reclassification adjustment for gains realized in net income ​ 53 ​ (12) ​ 41 Net unrealized loss on AFS securities ​ (74,412) ​ 17,181 ​ (57,231) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized loss on hedging derivatives: ​ ​ ​ Net unrealized loss arising during the period ​ (3,463) ​ 799 ​ (2,664) Less: reclassification adjustment for gains (losses) realized in net income ​ — ​ — ​ — Net unrealized gain on hedging derivatives ​ (3,463) ​ 799 ​ (2,664) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized loss on post-retirement plans: ​ ​ ​ Net unrealized loss arising during the period ​ (973) ​ 225 ​ (748) Less: reclassification adjustment for gains (losses) realized in net income ​ — ​ — ​ — Net unrealized loss on post-retirement plans ​ (973) ​ 225 ​ (748) Other comprehensive loss ​ $ (78,848) ​ $ 18,205 ​ $ (60,643) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2021 (in thousands) Before Tax Tax Effect Net of Tax Net unrealized loss on AFS securities: ​ ​ ​ Net unrealized loss arising during the period ​ $ (7,619) ​ $ 1,779 ​ $ (5,840) Less: reclassification adjustment for gains realized in net income ​ 2,870 ​ (672) ​ 2,198 Net unrealized loss on AFS securities ​ (10,489) ​ 2,451 ​ (8,038) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized gain on hedging derivatives: ​ ​ ​ Net unrealized gain arising during the period ​ 3,562 ​ (827) ​ 2,735 Less: reclassification adjustment for gains (losses) realized in net income ​ — ​ — ​ — Net unrealized gain on cash flow hedging derivatives ​ 3,562 ​ (827) ​ 2,735 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized loss on post-retirement plans: ​ ​ ​ Net unrealized loss arising during the period ​ 1,132 ​ (266) ​ 866 Less: reclassification adjustment for gains (losses) realized in net income ​ — ​ — ​ — Net unrealized loss on post-retirement plans ​ 1,132 ​ (266) ​ 866 Other comprehensive loss ​ $ (5,795) ​ $ 1,358 ​ $ (4,437)
Schedule of Changes in Components of Accumulated Other Comprehensive Income (Loss)	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net unrealized Net gain (loss) on Net unrealized ​ ​ ​ ​ gain (loss) ​ effective cash ​ loss ​ ​ ​ ​ ​ on AFS ​ flow hedging ​ on pension ​ ​ ​ (in thousands) ​ Securities ​ derivatives ​ plans ​ Total Year Ended December 31, 2023 ​ ​ ​ ​ ​ Balance at beginning of period ​ $ (55,246) ​ $ (1,794) ​ $ (1,300) ​ $ (58,340) Other comprehensive gain before reclassifications ​ 7,623 ​ 784 ​ 97 ​ 8,504 Less: amounts reclassified from accumulated other comprehensive income ​ 26 ​ — ​ — ​ 26 Total other comprehensive income ​ 7,597 ​ 784 ​ 97 ​ 8,478 Balance at end of period ​ $ (47,649) ​ $ (1,010) ​ $ (1,203) ​ $ (49,862) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2022 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at beginning of period ​ $ 1,985 ​ $ 870 ​ $ (552) ​ $ 2,303 Other comprehensive loss before reclassifications ​ (57,190) ​ (2,664) ​ (748) ​ (60,602) Less: amounts reclassified from accumulated other comprehensive income ​ 41 ​ — ​ — ​ 41 Total other comprehensive loss ​ (57,231) ​ (2,664) ​ (748) ​ (60,643) Balance at end of period ​ $ (55,246) ​ $ (1,794) ​ $ (1,300) ​ $ (58,340) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2021 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance at beginning of period ​ $ 10,023 ​ $ (1,865) ​ $ (1,418) ​ $ 6,740 Other comprehensive loss before reclassifications ​ (5,840) ​ 2,735 ​ 866 ​ (2,239) Less: amounts reclassified from accumulated other comprehensive income ​ 2,198 ​ — ​ — ​ 2,198 Total other comprehensive loss ​ (8,038) ​ 2,735 ​ 866 ​ (4,437) Balance at end of period ​ $ 1,985 ​ $ 870 ​ $ (552) ​ $ 2,303 ​ ​
Reclassification out of Accumulated Other Comprehensive Income (Loss)	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Affected Line Item where (in thousands) 2023 2022 2021 Net Income is Presented Net realized gains on AFS securities: ​ ​ ​ ​ ​ ​ ​ Before tax ​ $ 34 ​ $ 53 ​ $ 2,870 Non-interest income Tax effect ​ (8) ​ (12) ​ (672) Tax expense Total reclassifications for the period ​ $ 26 ​ $ 41 ​ $ 2,198 ​ ​ ​ ​
Schedule of Earnings Per Share	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands, except per share and share data) 2023 2022 2021 Net income ​ $ 44,852 ​ $ 43,557 ​ $ 39,299 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Average number of basic common shares outstanding ​ 15,142,188 ​ 15,040,162 ​ 14,968,973 Plus: dilutive effect of stock options and awards outstanding ​ 53,048 ​ 71,799 ​ 76,189 Average number of diluted common shares outstanding (1) ​ 15,195,236 ​ 15,111,961 ​ 15,045,162 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Earnings per share: ​ ​ ​ Basic ​ $ 2.96 ​ $ 2.90 ​ $ 2.63 Diluted ​ $ 2.95 ​ $ 2.88 ​ $ 2.61 ​ (1) Average diluted shares outstanding are computed using the treasury stock method.

STOCK-BASED COMPENSATION PLANS

STOCK-BASED COMPENSATION PLANS (Tables)	12 Months Ended
	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocation of Recognized Compensation Expense	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 2021 Stock options ​ $ — ​ $ — ​ $ — Restricted stock awards ​ ​ 868 ​ ​ 578 ​ ​ 357 Performance stock units ​ 857 ​ 181 ​ 317 Restricted stock units ​ 800 ​ 1,098 ​ 1,391 Total compensation expense ​ $ 2,525 ​ $ 1,857 ​ $ 2,065
Schedule of Tax Benefits Recognized	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) 2023 2022 2021 Stock options (1) ​ $ 17 ​ $ 22 ​ $ 77 Restricted stock awards ​ ​ 201 ​ ​ 136 ​ ​ 84 Performance stock units ​ 204 ​ 43 ​ 79 Restricted stock units ​ 193 ​ 274 ​ 344 Total tax benefit ​ $ 615 ​ $ 475 ​ $ 584 ​ (1)
Summary of Stock Option Activity	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted ​ Aggregate ​ ​ Stock Options ​ Average ​ Intrinsic Value Stock Options Outstanding Exercise Price (in thousands) Outstanding at January 1, 2023 47,327 ​ $ 21.47 ​ Granted — ​ — ​ Exercised (8,166) ​ 20.64 ​ Forfeited — ​ — ​ Expired ​ (3,323) ​ ​ 16.99 ​ ​ ​ Outstanding at December 31, 2023 35,838 ​ $ 22.08 ​ $ 261 ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending vested and expected to vest December 31, 2023 35,838 ​ $ 22.08 ​ $ 261 Exercisable at December 31, 2023 35,838 ​ 22.08 ​ 261 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted ​ Aggregate ​ ​ Stock Options ​ Average ​ Intrinsic Value Stock Options Outstanding Exercise Price (in thousands) Outstanding at January 1, 2022 57,964 ​ $ 20.89 ​ Granted — ​ — ​ Exercised (10,637) ​ 18.29 ​ Forfeited — ​ — ​ Expired ​ — ​ ​ — ​ ​ ​ Outstanding at December 31, 2022 47,327 ​ $ 21.47 ​ $ 500 ​ ​ ​ ​ ​ ​ ​ ​ ​ Ending vested and expected to vest December 31, 2022 47,327 ​ $ 21.47 ​ $ 500 Exercisable at December 31, 2022 47,327 ​ 21.47 ​ 500
Summary of Restricted Stock Awards Activity	​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ ​ ​ ​ ​ Restricted Stock ​ Weighted Average ​ ​ Awards ​ Grant Date Fair Restricted Stock Awards Outstanding Value Outstanding at January 1, 2023 24,824 ​ $ 28.49 Awarded 39,585 ​ 29.16 Vested (23,235) ​ 27.36 Forfeited — ​ — Outstanding at December 31, 2023 41,174 ​ $ 29.78 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ ​ ​ ​ ​ Restricted Stock ​ Weighted Average ​ ​ Awards ​ Grant Date Fair Restricted Stock Awards Outstanding Value Outstanding at January 1, 2022 — ​ $ — Awarded 39,267 ​ 29.21 Vested (14,443) ​ 30.46 Forfeited — ​ — Outstanding at December 31, 2022 24,824 ​ $ 28.49
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of Stock Units Activity	​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted Average ​ ​ Performance Stock ​ Grant Date Fair Performance Stock Units Units Outstanding Value Nonvested at January 1, 2023 78,435 ​ $ 25.70 Awarded 28,831 ​ 30.64 Vested and exercised (15,601) ​ 25.29 Forfeited (6,750) ​ 25.30 Nonvested at December 31, 2023 84,915 ​ $ 27.53 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted Average ​ ​ Performance Stock ​ Grant Date Fair Performance Stock Units Units Outstanding Value Nonvested at January 1, 2022 70,465 ​ $ 23.88 Awarded 29,200 ​ 28.49 Vested and exercised — ​ — Forfeited (21,230) ​ 23.35 Nonvested at December 31, 2022 78,435 ​ $ 25.70
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of Stock Units Activity	​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted Average ​ ​ Restricted Stock ​ Grant Date Fair ​ Units Outstanding Value Outstanding at January 1, 2023 ​ 115,816 $ 25.25 Granted ​ 36,354 ​ ​ 26.12 Vested and exercised ​ (43,341) ​ ​ 21.77 Forfeited ​ (6,134) ​ ​ 25.84 Outstanding at December 31, 2023 ​ 102,695 ​ $ 27.07 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Number of ​ Weighted Average ​ ​ Restricted Stock ​ Grant Date Fair ​ Units Outstanding Value Outstanding at January 1, 2022 ​ 133,617 $ 23.48 Granted ​ 36,468 ​ ​ 28.51 Vested and exercised ​ (43,059) ​ ​ 22.88 Forfeited ​ (11,210) ​ ​ 23.46 Outstanding at December 31, 2022 ​ 115,816 ​ $ 25.25

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	12 Months Ended
	Dec. 31, 2023
FAIR VALUE MEASUREMENTS
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Level 1 Level 2 Level 3 Total (in thousands) ​ Inputs ​ Inputs ​ Inputs ​ Fair Value Available for sale securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ — ​ $ 1,992 ​ $ — ​ $ 1,992 Mortgage-backed securities: ​ ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ — ​ ​ 193,282 ​ ​ — ​ ​ 193,282 US Government agency ​ — ​ 74,213 ​ — ​ 74,213 Private label ​ — ​ 59,051 ​ — ​ 59,051 Obligations of states and political subdivisions thereof ​ — ​ 110,168 ​ — ​ 110,168 Corporate bonds ​ — ​ 95,868 ​ — ​ 95,868 Loans held for sale ​ ​ — ​ ​ 2,189 ​ ​ — ​ ​ 2,189 Derivative assets ​ — ​ 21,775 ​ 63 ​ 21,838 Derivative liabilities ​ — ​ (18,587) ​ (20) ​ (18,607) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ Level 1 Level 2 Level 3 Total (in thousands) ​ Inputs ​ Inputs ​ Inputs ​ Fair Value Available for sale securities: ​ ​ ​ ​ ​ ​ ​ ​ Obligations of US Government-sponsored enterprises ​ $ — ​ $ 2,660 ​ $ — ​ $ 2,660 Mortgage-backed securities: ​ ​ ​ ​ US Government-sponsored enterprises ​ ​ — ​ ​ 215,027 ​ ​ — ​ ​ 215,027 US Government agency ​ — ​ 79,606 ​ — ​ 79,606 Private label ​ — ​ 60,154 ​ — ​ 60,154 Obligations of states and political subdivisions thereof ​ — ​ 107,737 ​ — ​ 107,737 Corporate bonds ​ — ​ 94,332 ​ — ​ 94,332 Loans held for sale ​ ​ — ​ ​ — ​ ​ — ​ ​ — Derivative assets ​ — ​ 30,039 ​ — ​ 30,039 Derivative liabilities ​ — ​ (25,228) ​ — ​ (25,228) ​
Schedule of Changes in Level 3 Assets Measured on a Recurring Basis	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets (Liabilities) ​ ​ Interest Rate Lock ​ Forward (in thousands) Commitments Commitments Year Ended December 31, 2023 ​ ​ Balance at beginning of period ​ $ — ​ $ — Realized gain recognized in non-interest income ​ 63 ​ — Balance at end of period ​ $ 63 ​ $ — ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2022 ​ ​ Balance at beginning of period ​ $ 283 ​ $ 15 Realized loss recognized in non-interest income ​ (283) ​ (7) Balance at end of period ​ $ — ​ $ 8
Schedule of Changes in Level 3 Liabilities Measured on a Recurring Basis	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Assets (Liabilities) ​ ​ Interest Rate Lock ​ Forward (in thousands) Commitments Commitments Year Ended December 31, 2023 ​ ​ Balance at beginning of period ​ $ — ​ $ — Realized gain recognized in non-interest income ​ 63 ​ — Balance at end of period ​ $ 63 ​ $ — ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, 2022 ​ ​ Balance at beginning of period ​ $ 283 ​ $ 15 Realized loss recognized in non-interest income ​ (283) ​ (7) Balance at end of period ​ $ — ​ $ 8
Schedule of Quantitative Information, Valuation, Recurring	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ ​ ​ ​ (in thousands, ​ December 31, ​ Valuation ​ Unobservable ​ Unobservable ​ except ratios) 2023 Techniques Inputs Input Value Assets (Liabilities) ​ ​ ​ ​ ​ ​ Interest Rate Lock Commitment $ 63 ​ Pull-through Rate Analysis Closing Ratio ​ 95 % ​ ​ ​ ​ Pricing Model ​ Origination Costs, per loan ​ $ 1.7 ​ ​ ​ ​ ​ ​ Discount Cash Flows ​ Mortgage Servicing Asset ​ ​ 1.0 % Total ​ $ 63 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ Significant ​ ​ December 31, ​ Valuation ​ Unobservable ​ Unobservable ​ (in thousands, except ratios) 2022 ​ Techniques Inputs Input Value ​ Assets (Liabilities) ​ ​ ​ ​ ​ ​ Interest Rate Lock Commitment $ 283 ​ Pull-through Rate Analysis Closing Ratio ​ 85 % ​ ​ ​ ​ Pricing Model ​ Origination Costs, per loan ​ $ 1.7 ​ ​ ​ ​ ​ ​ Discount Cash Flows ​ Mortgage Servicing Asset ​ ​ 1.0 % ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Forward Commitments ​ 15 ​ Quoted prices for similar loans in active markets Freddie Mac pricing system ​ $99.8 to $103.2 ​ Total ​ $ 298 ​ ​ ​ ​ ​ ​ ​ ​
Summary of Applicable Non-Recurring Fair Value Measurements	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Measurement Date as of ​ ​ Dec 31, 2023 ​ Dec 31, 2022 ​ December 31, 2023 ​ December 31, 2023 ​ ​ Level 3 ​ Level 3 ​ Total ​ Level 3 (in thousands) Inputs Inputs Gains (Losses) Inputs Assets ​ ​ ​ ​ ​ ​ ​ Individually evaluated loans ​ $ 3,500 ​ $ 16,477 ​ $ (12,977) ​ December 2023 Capitalized servicing rights ​ 6,764 ​ ​ 6,845 ​ (81) December 2023 Premises held for sale ​ 1,154 ​ ​ 252 ​ 902 December 2023 Total ​ $ 11,418 ​ $ 23,574 ​ $ (12,156)
Schedule of Quantitative Information, Valuation, Non-recurring	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands, except ratios) Fair Value December 31, 2023 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) Assets ​ ​ ​ ​ Individually evaluated loans ​ $ 2,437 Fair value of collateral-appraised value Loss severity ​ ​ 10% to 43% ​ ​ ​ ​ ​ ​ ​ Appraised value ​ ​ $80 to $965 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated loans ​ 1,063 Discount cash flow Discount rate ​ 3.25% to 7.13% ​ ​ ​ ​ ​ ​ ​ Cash flows ​ ​ $2 to $520 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capitalized servicing rights ​ 6,764 Discounted cash flow Constant prepayment rate ​ 7.20% ​ ​ ​ ​ Discount rate ​ 10.06% ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Premises held for sale ​ 1,154 Fair value of asset less selling costs Appraised value ​ ​ $1,223 ​ ​ ​ ​ Selling Costs ​ 6% ​ Total ​ $ 11,418 ​ ​ (a) Where dollar amounts are disclosed, the amounts represent the lowest and highest fair value of the respective assets in the population except for adjustments for market/property conditions, which represents the range of adjustments to individuals properties. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands, except ratios) Fair Value December 31, 2022 Valuation Techniques Unobservable Inputs Range (Weighted Average) (a) ​ Assets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated loans ​ $ 13,587 Fair value of collateral-appraised value Loss severity ​ ​ 1% to 40% ​ ​ ​ ​ ​ ​ ​ Appraised value ​ ​ $80 to $3,859 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Individually evaluated loans ​ 2,890 Discount cash flow Discount rate ​ 3.63% to 6.38% ​ ​ ​ ​ ​ ​ ​ Cash flows ​ ​ $100 to $539 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capitalized servicing rights ​ 6,845 Discounted cash flow Constant prepayment rate ​ 7.29% ​ ​ ​ ​ Discount rate ​ 9.54% ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Premises held for sale ​ 252 Fair value of asset less selling costs Appraised value ​ ​ $267 ​ ​ ​ ​ ​ Selling Costs ​ 6% ​ Total ​ $ 23,574 ​ ​ ​ ​ ​ ​ ​ ​ (a) Where dollar amounts are disclosed, the amounts represent the lowest and highest fair value of the respective assets in the population except for adjustments for market/property conditions, which represents the range of adjustments to individuals properties.
Summary of Estimated Fair Values, and Related Carrying Amounts, of Financial Instruments	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ ​ Carrying ​ Fair ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 94,842 ​ $ 94,842 ​ $ 94,842 ​ $ — ​ $ — Securities available for sale ​ 534,574 ​ 534,574 ​ — ​ 534,574 ​ — FHLB stock ​ 14,834 ​ 14,834 ​ — ​ 14,834 ​ — Loans held for sale ​ ​ 2,189 ​ ​ 2,189 ​ ​ — ​ ​ 2,189 ​ ​ — Net loans ​ 2,999,049 ​ 2,832,173 ​ — ​ — ​ 2,832,173 Accrued interest receivable ​ 4,921 ​ 4,921 ​ — ​ 4,921 ​ — Cash surrender value of bank-owned life insurance policies ​ 80,037 ​ 80,037 ​ — ​ 80,037 ​ — Derivative assets ​ 21,838 ​ 21,838 ​ — ​ 21,775 ​ 63 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial Liabilities ​ ​ ​ ​ ​ Non-maturity deposits ​ $ 2,482,012 ​ $ 2,325,307 ​ $ — ​ $ 2,325,307 ​ $ — Time deposits ​ ​ 658,482 ​ ​ 651,855 ​ ​ — ​ ​ 651,855 ​ ​ — Securities sold under agreements to repurchase ​ ​ 38,504 ​ ​ 38,504 ​ ​ — ​ ​ 38,504 ​ ​ — FHLB advances ​ 232,579 ​ 232,375 ​ — ​ 232,375 ​ — Subordinated borrowings ​ 60,422 ​ 67,635 ​ — ​ 67,635 ​ — Derivative liabilities ​ 15,607 ​ 15,607 ​ — ​ 15,587 ​ 20 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ Carrying ​ Fair ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Amount Value Level 1 Level 2 Level 3 Financial Assets ​ ​ ​ ​ ​ Cash and cash equivalents ​ $ 92,295 ​ $ 92,295 ​ $ 92,295 ​ $ — ​ $ — Securities available for sale ​ 559,516 ​ 559,516 ​ — ​ 559,516 ​ — FHLB stock ​ 14,893 ​ 14,893 ​ — ​ 14,893 ​ — Loans held for sale ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — Net loans ​ 2,902,690 ​ 2,774,863 ​ — ​ — ​ 2,774,863 Accrued interest receivable ​ 4,257 ​ 4,257 ​ — ​ 4,257 ​ — Cash surrender value of bank-owned life insurance policies ​ 81,197 ​ 81,197 ​ — ​ 81,197 ​ — Derivative assets ​ 30,039 ​ 30,039 ​ — ​ 30,039 ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Financial Liabilities ​ ​ ​ ​ ​ Non-maturity deposits ​ $ 2,719,992 ​ $ 2,309,555 ​ $ — ​ $ 2,309,555 ​ $ — Time deposits ​ ​ 323,439 ​ ​ 315,180 ​ ​ — ​ ​ 315,180 ​ ​ — Securities sold under agreements to repurchase ​ ​ 13,369 ​ ​ 13,369 ​ ​ — ​ ​ 13,369 ​ ​ — FHLB advances ​ 320,588 ​ 320,244 ​ — ​ 320,244 ​ — Subordinated borrowings ​ 60,289 ​ 66,846 ​ — ​ 66,846 ​ — Derivative liabilities ​ 25,228 ​ 25,228 ​ — ​ 25,228 ​ — ​

REVENUE FROM CONTRACTS WITH C_2

REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)	12 Months Ended
	Dec. 31, 2023
REVENUE FROM CONTRACTS WITH CUSTOMERS
Disaggregation of Revenue	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, (in thousands) 2023 2022 Non-interest income within the scope of ASC 606: ​ ​ Trust management fees ​ $ 12,766 ​ $ 13,022 Financial services fees ​ 1,517 ​ 1,551 Interchange fees ​ 7,845 ​ 7,736 Customer deposit fees ​ 6,280 ​ 5,935 Other customer service fees ​ 1,043 ​ 1,120 Total non-interest income within the scope of ASC 606 ​ ​ 29,451 ​ ​ 29,364 Total non-interest income not within the scope of ASC 606 ​ ​ 6,378 ​ ​ 5,957 Total non-interest income ​ $ 35,829 ​ $ 35,321 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, (in thousands) 2023 2022 Timing of Revenue Recognition ​ ​ Products and services transferred at a point in time ​ $ 15,751 ​ $ 15,552 Products and services transferred over time ​ 13,700 ​ 13,812 Total ​ $ 29,451 ​ $ 29,364
Contract Balances from Contracts with Customers	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) ​ December 31, 2023 ​ December 31, 2022 Balances from contracts with customers only: ​ ​ Other Assets ​ $ 1,178 ​ $ 1,211 Other Liabilities ​ 1,769 ​ 2,345

LEASES (Tables)

LEASES (Tables)	12 Months Ended
	Dec. 31, 2023
LEASES
ROU Assets and Liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ (in thousands) Classification December 31, 2023 December 31, 2022 Lease Right-of-Use Assets ​ ​ ​ ​ ​ Operating lease right-of-use assets Other assets ​ $ 6,874 ​ $ 8,078 ​ ​ ​ ​ ​ ​ ​ ​ ​ Lease Liabilities ​ ​ Operating lease liabilities Other liabilities ​ 7,322 ​ 8,501
Weighted average lease term and discount rate	​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Weighted-average remaining lease term (in years) ​ ​ ​ ​ Operating leases ​ 6.28 ​ ​ 7.17 ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average discount rate ​ ​ ​ ​ Operating leases ​ 3.10 % ​ 3.09 %
Additional Information Regarding Leases	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended (in thousands) ​ December 31, 2023 December 31, 2022 ​ December 31, 2021 Lease Costs ​ ​ ​ ​ ​ Operating lease cost ​ $ 1,343 ​ $ 1,344 ​ $ 1,295 Variable lease cost ​ 485 ​ 402 ​ 229 Total lease cost ​ $ 1,828 ​ $ 1,746 ​ $ 1,524
Future Minimum Payments for Leases	​ ​ ​ ​ ​ (in thousands) Payments Twelve Months Ended: ​ December 31, 2024 ​ $ 1,316 December 31, 2025 ​ 1,092 December 31, 2026 ​ 987 December 31, 2027 ​ 864 December 31, 2028 ​ 726 Thereafter ​ 2,484 Total future minimum lease payments ​ 7,469 Amounts representing interest ​ (147) Present value of net future minimum lease payments ​ $ 7,322 ​

CONDENSED FINANCIAL STATEMENT_2

CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY (Tables)	12 Months Ended
	Dec. 31, 2023
CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY
Condensed Balance Sheets	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, (in thousands) 2023 2022 Assets ​ ​ Cash ​ $ 7,850 ​ $ 7,350 Investment in subsidiaries ​ 484,574 ​ 447,937 Premises and equipment ​ 785 ​ 765 Other assets ​ 5,070 ​ 3,130 Total assets ​ $ 498,279 ​ $ 459,182 ​ ​ ​ ​ ​ ​ ​ Liabilities and Shareholders’ Equity ​ ​ Subordinated notes ​ $ 60,461 ​ $ 60,289 Accrued expenses ​ 5,759 ​ 5,443 Shareholders’ equity ​ 432,059 ​ 393,450 Total liabilities and shareholders’ equity ​ $ 498,279 ​ $ 459,182 ​
Condensed Income Statement	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, (in thousands) 2023 2022 2021 Income: ​ ​ ​ ​ ​ ​ ​ ​ ​ Dividends from subsidiaries ​ $ 23,156 ​ $ 20,682 ​ $ 15,557 Other income ​ 1,142 ​ 976 ​ 740 Total income ​ 24,298 ​ 21,658 ​ 16,297 Interest expense ​ 3,691 ​ 2,981 ​ 2,632 Non-interest expense ​ 5,834 ​ 5,183 ​ 5,455 Total expense ​ 9,525 ​ 8,164 ​ 8,087 Income before taxes and equity in undistributed income of subsidiaries ​ 14,773 ​ 13,493 ​ 8,210 Income tax benefit ​ (1,985) ​ (1,709) ​ (1,741) Income before equity in undistributed income of subsidiaries ​ 16,758 ​ 15,202 ​ 9,951 Equity in undistributed income of subsidiaries ​ 28,094 ​ 28,355 ​ 29,348 Net income ​ $ 44,852 ​ $ 43,557 ​ $ 39,299
Condensed Cash Flow Statement	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Years Ended December 31, (in thousands) 2023 2022 2021 Cash flows from operating activities: ​ ​ ​ ​ ​ ​ ​ ​ ​ Net income ​ $ 44,852 ​ $ 43,557 ​ $ 39,299 Adjustments to reconcile net income to net cash provided by (used in) operating activities: ​ ​ ​ Equity in undistributed income of subsidiaries ​ (28,094) ​ (28,355) ​ (29,348) Other, net ​ (1,537) ​ 3,187 ​ (5,582) Net cash provided by operating activities ​ 15,221 ​ 18,389 ​ 4,369 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash flows from investing activities: ​ ​ ​ Acquisitions, net of cash paid ​ — ​ — ​ — Purchase of securities ​ — ​ — ​ — Capital contribution to subsidiary ​ — ​ — ​ — Net cash (used in) investing activities ​ — ​ — ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cash flows from financing activities: ​ ​ ​ Proceeds from issuance of subordinated debt ​ — ​ — ​ — Repayment of subordinated debt ​ — ​ — ​ — Net proceeds from common stock ​ 1,845 ​ 1,723 ​ 1,534 Net proceeds from reissuance of treasury stock ​ — ​ — ​ — Common stock cash dividends paid ​ (16,566) ​ (15,334) ​ (14,072) Net cash used in financing activities ​ (14,721) ​ (13,611) ​ (12,538) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net change in cash and cash equivalents ​ 500 ​ 4,778 ​ (8,169) Cash and cash equivalents at beginning of year ​ 7,350 ​ 2,572 ​ 10,741 Cash and cash equivalents at end of year ​ $ 7,850 ​ $ 7,350 ​ $ 2,572 ​

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance on AFS debt securities	$ 0	$ 0
Period of performance for return to accrual status	6 months
Enrollment term of employee stock purchase plan	6 months
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net actuarial gain or loss amortized (percentage)	10%
Premises | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Estimated useful live of premises and equipment	5 years
Premises | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Estimated useful live of premises and equipment	39 years
Furniture and equipment | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Estimated useful live of premises and equipment	3 years
Furniture and equipment | Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Estimated useful live of premises and equipment	8 years

SECURITIES AVAILABLE FOR SALE -

SECURITIES AVAILABLE FOR SALE - Summary of Securities Available for Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 596,925
Fair Value	534,574	$ 559,516
Debt securities | Obligations of US Government-sponsored enterprises
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	2,021	2,692
Gross Unrealized Gains		5
Gross Unrealized Losses	(29)	(37)
Fair Value	1,992	2,660
Mortgage-backed securities and collateralized mortgage obligations
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	596,925	631,348
Gross Unrealized Gains	4,709	7,251
Gross Unrealized Losses	(67,060)	(79,083)
Fair Value	534,574	559,516
Mortgage-backed securities and collateralized mortgage obligations | US Government-sponsored enterprises
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	223,602	249,838
Gross Unrealized Gains	12	14
Gross Unrealized Losses	(30,332)	(34,825)
Fair Value	193,282	215,027
Mortgage-backed securities and collateralized mortgage obligations | US Government agency
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	85,005	90,318
Gross Unrealized Gains	145	16
Gross Unrealized Losses	(10,937)	(10,728)
Fair Value	74,213	79,606
Mortgage-backed securities and collateralized mortgage obligations | Private label
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	60,888	64,056
Gross Unrealized Gains	18	34
Gross Unrealized Losses	(1,855)	(3,936)
Fair Value	59,051	60,154
Mortgage-backed securities and collateralized mortgage obligations | Obligations of states and political subdivisions thereof
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	119,857	121,939
Gross Unrealized Gains	4,515	7,149
Gross Unrealized Losses	(14,204)	(21,351)
Fair Value	110,168	107,737
Mortgage-backed securities and collateralized mortgage obligations | Corporate bonds
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	105,552	102,505
Gross Unrealized Gains	19	33
Gross Unrealized Losses	(9,703)	(8,206)
Fair Value	$ 95,868	$ 94,332

SECURITIES AVAILABLE FOR SALE_2

SECURITIES AVAILABLE FOR SALE - Maturity of Available for Sale Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Amortized Cost
Within 1 year	$ 3,038
Over 1 year to 5 years	50,471
Over 5 years to 10 years	45,706
Over 10 years	128,215
Total bonds and obligations	227,430
Mortgage-backed securities	369,495
Amortized Cost	596,925
Fair Value
Within 1 year	3,017
Over 1 year to 5 years	47,138
Over 5 years to 10 years	44,887
Over 10 years	112,986
Total bonds and obligations	208,028
Mortgage-backed securities and collateralized mortgage obligations	326,546
Total securities available for sale	$ 534,574	$ 559,516

SECURITIES AVAILABLE FOR SALE_3

SECURITIES AVAILABLE FOR SALE - Proceeds from the Sale of Securities and Realized Gains and Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
SECURITIES AVAILABLE FOR SALE
Proceeds from Sale of Securities Available for Sale	$ 2,000	$ 7,130	$ 92,723
Realized Gains	34	151	2,933
Realized Losses		(98)	(63)
Net	34	53	2,870
Available for sale securities	0
Proceeds from sales, maturities, calls and prepayments of securities available for sale	$ 42,184	$ 80,870	$ 204,275

SECURITIES AVAILABLE FOR SALE_4

SECURITIES AVAILABLE FOR SALE - Summary of Securities with Unrealized Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Gross Unrealized Losses
Less Than Twelve Months	$ 195	$ 23,471
Over Twelve Months	66,865	55,612
Total	67,060	79,083
Fair Value
Less Than Twelve Months	12,681	255,120
Over Twelve Months	503,402	287,858
Total	516,083	542,978
US Government-sponsored Enterprises Debt Securities | Debt securities
Gross Unrealized Losses
Less Than Twelve Months	1	32
Over Twelve Months	28	6
Total	29	38
Fair Value
Less Than Twelve Months	1,084	435
Over Twelve Months	907	790
Total	1,991	1,225
US Government-sponsored enterprises | Mortgage-backed securities and collateralized mortgage obligations
Gross Unrealized Losses
Less Than Twelve Months	10	7,005
Over Twelve Months	30,322	27,820
Total	30,332	34,825
Fair Value
Less Than Twelve Months	3,439	82,483
Over Twelve Months	188,611	127,745
Total	192,050	210,228
US Government agency | Mortgage-backed securities and collateralized mortgage obligations
Gross Unrealized Losses
Less Than Twelve Months	2	2,870
Over Twelve Months	10,935	7,857
Total	10,937	10,727
Fair Value
Less Than Twelve Months	120	42,430
Over Twelve Months	68,891	34,198
Total	69,011	76,628
Private label | Mortgage-backed securities and collateralized mortgage obligations
Gross Unrealized Losses
Less Than Twelve Months		841
Over Twelve Months	1,855	3,095
Total	1,855	3,936
Fair Value
Less Than Twelve Months	26	15,694
Over Twelve Months	59,007	44,396
Total	59,033	60,090
Obligations of states and political subdivisions thereof | Mortgage-backed securities and collateralized mortgage obligations
Gross Unrealized Losses
Less Than Twelve Months	26	7,990
Over Twelve Months	14,178	13,361
Total	14,204	21,351
Fair Value
Less Than Twelve Months	3,099	48,799
Over Twelve Months	101,036	55,702
Total	104,135	104,501
Corporate bonds | Mortgage-backed securities and collateralized mortgage obligations
Gross Unrealized Losses
Less Than Twelve Months	156	4,733
Over Twelve Months	9,547	3,473
Total	9,703	8,206
Fair Value
Less Than Twelve Months	4,913	65,279
Over Twelve Months	84,950	25,027
Total	$ 89,863	$ 90,306

SECURITIES AVAILABLE FOR SALE_5

SECURITIES AVAILABLE FOR SALE - Basis for Impairment Conclusion (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($)
Debt Securities, Available-for-Sale [Line Items]
Allowance on AFS debt securities | $	$ 0	$ 0
Obligations of US Government-sponsored enterprises
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale, securities in unrealized loss positions (security)	8
Available for sale securities portfolio, number of securities (security)	8
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses (percentage)	1.44%
US Government-sponsored enterprises
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale, securities in unrealized loss positions (security)	448
Available for sale securities portfolio, number of securities (security)	493
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses (percentage)	13.64%
US Government agency
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale, securities in unrealized loss positions (security)	130
Available for sale securities portfolio, number of securities (security)	151
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses (percentage)	13.68%
Private label
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale, securities in unrealized loss positions (security)	26
Available for sale securities portfolio, number of securities (security)	28
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses (percentage)	3.05%
Obligations of states and political subdivisions thereof
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale, securities in unrealized loss positions (security)	52
Available for sale securities portfolio, number of securities (security)	69
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses (percentage)	12.48%
Corporate bonds
Debt Securities, Available-for-Sale [Line Items]
Available-for-sale, securities in unrealized loss positions (security)	30
Available for sale securities portfolio, number of securities (security)	35
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses (percentage)	9.75%

SECURITIES AVAILABLE FOR SALE_6

SECURITIES AVAILABLE FOR SALE - Securities Pledged for Collateral (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Carrying Amount
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged for deposits	$ 24,347	$ 26,807
Securities pledged for repurchase agreements	18,841	21,001
Securities pledged for borrowings	113,775	40,686
Total securities pledged	156,963	88,494
Fair Value
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities pledged for deposits	21,341	23,430
Securities pledged for repurchase agreements	16,230	17,964
Securities pledged for borrowings	95,318	33,962
Total securities pledged	$ 132,889	$ 75,356

LOANS AND ALLOWANCE FOR CREDI_3

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Total Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 2,999,049	$ 2,902,690
Allowance for credit losses	28,142	25,860	$ 22,718	$ 19,082
Net loans	2,970,907	2,876,830
Accrued interest receivable for loans	11,900	10,700
Tax exempt
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	43,688	42,879
Allowance for credit losses	119	93	86	58
Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	87,683	90,865
Allowance for credit losses	767	811	814	285
Total commercial loans | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	154,048	117,577
Allowance for credit losses	4,261	2,579	2,111	824
Total commercial real estate | Commercial real estate owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	310,015	244,814
Allowance for credit losses	2,863	2,189	2,751	1,783
Total commercial real estate | Commercial real estate non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,144,566	1,146,674
Allowance for credit losses	9,443	9,341	5,650	7,864
Total commercial and industrial | Commercial real estate non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,144,566
Total commercial and industrial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	310,883	297,112
Allowance for credit losses	3,259	3,493	5,369	3,137
Total residential real estate | Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	940,334	954,968
Allowance for credit losses	7,352	7,274	5,862	5,010
Total consumer | Other consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	7,832	7,801
Allowance for credit losses	$ 78	$ 80	$ 75	$ 121

LOANS AND ALLOWANCE FOR CREDI_4

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Unamortized Net Costs and Premiums (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Net unamortized loan origination costs	$ 3,039	$ 3,184
Net unamortized fair value discount on acquired loans	(2,891)	(3,506)
Total	$ 148	$ (322)

LOANS AND ALLOWANCE FOR CREDI_5

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Allowance Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 25,860	$ 22,718	$ 19,082
Charge Offs	(973)	(366)	(898)
Recoveries	347	604	608
Provision	2,908	2,904	(1,302)
Balance at end of period	28,142	25,860	22,718
impact of ASC 326
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		5,228
Balance at end of period			5,228
Construction and land development | Total commercial loans
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	2,579	2,111	824
Recoveries			18
Provision	1,682	468	73
Balance at end of period	4,261	2,579	2,111
Construction and land development | Total commercial loans | impact of ASC 326
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		1,196
Balance at end of period			1,196
Commercial real estate owner occupied | Total commercial real estate
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	2,189	2,751	1,783
Charge Offs			(403)
Recoveries	142	120	290
Provision	532	(682)	373
Balance at end of period	2,863	2,189	2,751
Commercial real estate owner occupied | Total commercial real estate | impact of ASC 326
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		708
Balance at end of period			708
Commercial real estate non-owner occupied | Total commercial real estate
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	9,341	5,650	7,864
Recoveries			4
Provision	102	3,691	(210)
Balance at end of period	9,443	9,341	5,650
Commercial real estate non-owner occupied | Total commercial real estate | impact of ASC 326
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		(2,008)
Balance at end of period			(2,008)
Tax exempt
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	93	86	58
Provision	26	7	(12)
Balance at end of period	119	93	86
Tax exempt | impact of ASC 326
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		40
Balance at end of period			40
Commercial and industrial | Total commercial and industrial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	3,493	5,369	3,137
Charge Offs	(664)	(8)	(59)
Recoveries	149	341	77
Provision	281	(2,209)	(782)
Balance at end of period	3,259	3,493	5,369
Commercial and industrial | Total commercial and industrial | impact of ASC 326
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		2,996
Balance at end of period			2,996
Residential mortgages | Total residential real estate
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	7,274	5,862	5,010
Charge Offs	(8)	(84)	(77)
Recoveries	31	106	159
Provision	55	1,390	(962)
Balance at end of period	7,352	7,274	5,862
Residential mortgages | Total residential real estate | impact of ASC 326
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		1,732
Balance at end of period			1,732
Home equity
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	811	814	285
Charge Offs	(12)	(7)	(154)
Recoveries	6	25	51
Provision	(38)	(21)	29
Balance at end of period	767	811	814
Home equity | impact of ASC 326
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		603
Balance at end of period			603
Other consumer | Total consumer
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	80	75	121
Charge Offs	(289)	(267)	(205)
Recoveries	19	12	9
Provision	268	260	189
Balance at end of period	78	80	75
Other consumer | Total consumer | impact of ASC 326
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		(39)
Balance at end of period			(39)
Unfunded Loan Commitment
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	3,910	2,152	359
Provision	(85)	1,758	177
Balance at end of period	$ 3,825	3,910	2,152
Unfunded Loan Commitment | impact of ASC 326
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period		$ 1,616
Balance at end of period			$ 1,616

LOANS AND ALLOWANCE FOR CREDI_6

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loans by Year of Origination, Loan Segmentation and Risk Indicator (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Credit quality information
2023	$ 300,691	$ 752,984
2022	804,770	517,516
2021	497,365	378,675
2020	333,145	226,712
2019	197,739	162,477
Prior	865,339	864,326
Total loans	2,999,049	2,902,690
Current period gross write-offs
Total	973	366	$ 898
Construction and land development | Total commercial loans
Credit quality information
2023	14,040	49,722
2022	99,115	38,837
2021	35,978	27,043
2020	3,992	1,011
2019		964
Prior	923
Total loans	154,048	117,577
Construction and land development | Pass | Total commercial loans
Credit quality information
2023	14,040	49,722
2022	99,115	38,837
2021	35,978	2,865
2020	3,992	1,011
2019		964
Prior	923
Total loans	154,048	93,399
Construction and land development | Special mention | Total commercial loans
Credit quality information
2021		24,178
Total loans		24,178
Commercial real estate owner occupied | Total commercial real estate
Credit quality information
2023	57,763	22,371
2022	61,402	11,290
2021	50,716	23,257
2020	21,805	32,018
2019	20,462	46,648
Prior	97,867	109,230
Total loans	310,015	244,814
Current period gross write-offs
Total			403
Commercial real estate owner occupied | Pass | Total commercial real estate
Credit quality information
2023	57,603	22,371
2022	61,015	11,290
2021	43,228	23,014
2020	20,209	31,352
2019	20,462	46,398
Prior	91,187	103,295
Total loans	293,704	237,720
Commercial real estate owner occupied | Special mention | Total commercial real estate
Credit quality information
2023	160
2022	387
2021	7,488	243
2020	1,596	666
2019		173
Prior	3,066	1,870
Total loans	12,697	2,952
Commercial real estate owner occupied | Substandard | Total commercial real estate
Credit quality information
2019		77
Prior	3,497	3,924
Total loans	3,497	4,001
Commercial real estate owner occupied | Doubtful | Total commercial real estate
Credit quality information
Prior	117	141
Total loans	117	141
Commercial real estate non-owner occupied | Total commercial real estate
Credit quality information
2023	49,079	370,856
2022	353,613	249,804
2021	213,445	145,096
2020	164,480	88,238
2019	94,005	36,124
Prior	269,944	256,556
Total loans	1,144,566	1,146,674
Commercial real estate non-owner occupied | Total commercial and industrial
Credit quality information
Total loans	1,144,566
Commercial real estate non-owner occupied | Pass | Total commercial real estate
Credit quality information
2023	41,270	370,856
2022	353,613	228,414
2021	199,311	145,096
2020	127,231	88,111
2019	78,759	35,213
Prior	238,973	238,395
Total loans	1,039,157	1,106,085
Commercial real estate non-owner occupied | Special mention | Total commercial real estate
Credit quality information
2023	7,809
2022		21,390
2021	14,134
2020	37,249	127
2019	15,246	911
Prior	17,108	16,612
Total loans	91,546	39,040
Commercial real estate non-owner occupied | Substandard | Total commercial real estate
Credit quality information
Prior	13,863	1,404
Total loans	13,863	1,404
Commercial real estate non-owner occupied | Doubtful | Total commercial real estate
Credit quality information
Prior		145
Total loans		145
Tax exempt
Credit quality information
2023	6,340	8,686
2022	8,468	1,020
2021	787	252
2020	208	772
2019	590	13,231
Prior	27,295	18,918
Total loans	43,688	42,879
Tax exempt | Pass
Credit quality information
2023	6,340	8,686
2022	8,468	1,020
2021	787	252
2020	208	772
2019	590	13,231
Prior	27,295	18,918
Total loans	43,688	42,879
Commercial and industrial | Total commercial and industrial
Credit quality information
2023	81,364	84,601
2022	70,942	27,061
2021	22,391	62,999
2020	39,709	28,359
2019	14,949	10,011
Prior	81,528	84,081
Total loans	310,883	297,112
Current period gross write-offs
2019	5
Prior	659
Total	664	8	59
Commercial and industrial | Pass | Total commercial and industrial
Credit quality information
2023	80,942	83,151
2022	69,402	26,948
2021	22,205	62,835
2020	38,824	27,491
2019	14,739	9,511
Prior	77,273	81,316
Total loans	303,385	291,252
Commercial and industrial | Special mention | Total commercial and industrial
Credit quality information
2023	364	1,450
2022	1,446
2021		53
2020	776	803
2019	28	201
Prior	3,588	619
Total loans	6,202	3,126
Commercial and industrial | Substandard | Total commercial and industrial
Credit quality information
2023	58
2022	94	113
2021	186	111
2020	109	65
2019	95	299
Prior	532	2,106
Total loans	1,074	2,694
Commercial and industrial | Doubtful | Total commercial and industrial
Credit quality information
2019	87
Prior	135	40
Total loans	222	40
Residential mortgages | Residential real estate
Credit quality information
2023	72,395	195,320
2022	194,109	177,525
2021	165,475	111,021
2020	96,016	69,219
2019	62,882	48,438
Prior	349,457	353,445
Total loans	940,334	954,968
Current period gross write-offs
Prior	8
Total	8
Residential mortgages | Performing | Residential real estate
Credit quality information
2023	72,395	195,320
2022	194,109	177,480
2021	165,434	111,021
2020	96,016	69,170
2019	62,648	47,797
Prior	345,823	349,795
Total loans	936,425	950,583
Residential mortgages | Nonperforming | Residential real estate
Credit quality information
2022		45
2021	41
2020		49
2019	234	641
Prior	3,634	3,650
Total loans	3,909	4,385
Home equity
Credit quality information
2023	15,582	17,107
2022	15,334	10,638
2021	7,873	8,139
2020	6,633	6,830
2019	4,800	6,997
Prior	37,461	41,154
Total loans	87,683	90,865
Current period gross write-offs
Prior	12
Total	12	7	$ 154
Home equity | Performing
Credit quality information
2023	15,582	17,107
2022	15,334	10,638
2021	7,873	8,139
2020	6,633	6,830
2019	4,800	6,997
Prior	36,652	40,191
Total loans	86,874	89,902
Home equity | Nonperforming
Credit quality information
Prior	809	963
Total loans	809	963
Other consumer | Consumer
Credit quality information
2023	4,128	4,321
2022	1,787	1,341
2021	700	868
2020	302	265
2019	51	64
Prior	864	942
Total loans	7,832	7,801
Current period gross write-offs
2022	52
2021	18
2020	5
Prior	214
Total	289
Other consumer | Performing | Consumer
Credit quality information
2023	4,128	4,321
2022	1,787	1,341
2021	696	863
2020	301	265
2019	51	64
Prior	864	942
Total loans	7,827	7,796
Other consumer | Nonperforming | Consumer
Credit quality information
2021	4	5
2020	1
Total loans	$ 5	$ 5

LOANS AND ALLOWANCE FOR CREDI_7

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Total loans	$ 2,999,049	$ 2,902,690
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	2,595	1,659
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	688	661
90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans	2,769	2,423
Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	6,052	4,743
Current
Financing Receivable, Past Due [Line Items]
Total loans	2,992,997	2,897,947
Construction and land development | Total commercial loans
Financing Receivable, Past Due [Line Items]
Total loans	154,048	117,577
Construction and land development | Total commercial loans | Current
Financing Receivable, Past Due [Line Items]
Total loans	154,048	117,577
Commercial real estate owner occupied | Total commercial real estate
Financing Receivable, Past Due [Line Items]
Total loans	310,015	244,814
Commercial real estate owner occupied | Total commercial real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans		385
Commercial real estate owner occupied | Total commercial real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans		385
Commercial real estate owner occupied | Total commercial real estate | Current
Financing Receivable, Past Due [Line Items]
Total loans	310,015	244,429
Commercial real estate non-owner occupied | Total commercial real estate
Financing Receivable, Past Due [Line Items]
Total loans	1,144,566	1,146,674
Commercial real estate non-owner occupied | Total commercial real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans		45
Commercial real estate non-owner occupied | Total commercial real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans		145
Commercial real estate non-owner occupied | Total commercial real estate | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans		139
Commercial real estate non-owner occupied | Total commercial real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans		329
Commercial real estate non-owner occupied | Total commercial real estate | Current
Financing Receivable, Past Due [Line Items]
Total loans		1,146,345
Commercial real estate non-owner occupied | Total commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans	1,144,566
Commercial real estate non-owner occupied | Total commercial and industrial | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans	103
Commercial real estate non-owner occupied | Total commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	103
Commercial real estate non-owner occupied | Total commercial and industrial | Current
Financing Receivable, Past Due [Line Items]
Total loans	1,144,463
Tax exempt
Financing Receivable, Past Due [Line Items]
Total loans	43,688	42,879
Tax exempt | Current
Financing Receivable, Past Due [Line Items]
Total loans	43,688	42,879
Commercial and industrial | Total commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans	310,883	297,112
Commercial and industrial | Total commercial and industrial | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	465	169
Commercial and industrial | Total commercial and industrial | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	59
Commercial and industrial | Total commercial and industrial | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans	330	9
Commercial and industrial | Total commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	854	178
Commercial and industrial | Total commercial and industrial | Current
Financing Receivable, Past Due [Line Items]
Total loans	310,029	296,934
Residential mortgages | Total residential real estate
Financing Receivable, Past Due [Line Items]
Total loans	940,334	954,968
Residential mortgages | Total residential real estate | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	1,520	803
Residential mortgages | Total residential real estate | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	627	348
Residential mortgages | Total residential real estate | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans	1,999	2,029
Residential mortgages | Total residential real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	4,146	3,180
Residential mortgages | Total residential real estate | Current
Financing Receivable, Past Due [Line Items]
Total loans	936,188	951,788
Home equity
Financing Receivable, Past Due [Line Items]
Total loans	87,683	90,865
Home equity | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	600	216
Home equity | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans		160
Home equity | 90 Days or Greater Past Due
Financing Receivable, Past Due [Line Items]
Total loans	337	246
Home equity | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	937	622
Home equity | Current
Financing Receivable, Past Due [Line Items]
Total loans	86,746	90,243
Other consumer | Total consumer
Financing Receivable, Past Due [Line Items]
Total loans	7,832	7,801
Other consumer | Total consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	10	41
Other consumer | Total consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total loans	2	8
Other consumer | Total consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Total loans	12	49
Other consumer | Total consumer | Current
Financing Receivable, Past Due [Line Items]
Total loans	$ 7,820	$ 7,752

LOANS AND ALLOWANCE FOR CREDI_8

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Non-accrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Non-accrual loans
Nonaccrual	$ 5,528	$ 6,549
Nonaccrual With No Related Allowance	1,406	2,334
Nonaccrual, Past Due 90 days and Accruing	140	216
Commercial real estate owner occupied | Total commercial real estate
Non-accrual loans
Nonaccrual	103	439
Nonaccrual With No Related Allowance	44	360
Commercial real estate non-owner occupied | Total commercial real estate
Non-accrual loans
Nonaccrual	340	550
Nonaccrual With No Related Allowance	224	411
Commercial and industrial | Total commercial and industrial
Non-accrual loans
Nonaccrual	363	207
Nonaccrual With No Related Allowance	6	145
Residential mortgages | Total residential real estate
Non-accrual loans
Nonaccrual	3,908	4,385
Nonaccrual With No Related Allowance	1,131	1,361
Nonaccrual, Past Due 90 days and Accruing	118	202
Home equity
Non-accrual loans
Nonaccrual	809	963
Nonaccrual With No Related Allowance	1	57
Nonaccrual, Past Due 90 days and Accruing	22	14
Other consumer | Total consumer
Non-accrual loans
Nonaccrual	$ 5	$ 5

LOANS AND ALLOWANCE FOR CREDI_9

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Amortized Cost Basis of Collateral Dependent Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Allowance for loan losses
Total loans	$ 2,999,049	$ 2,902,690
Real Estate
Allowance for loan losses
Total loans	5,394	6,433
Other Collateral Loans
Allowance for loan losses
Total loans	134	116
Construction and land development | Total commercial loans
Allowance for loan losses
Total loans	154,048	117,577
Commercial real estate owner occupied | Total commercial real estate
Allowance for loan losses
Total loans	310,015	244,814
Commercial real estate owner occupied | Total commercial real estate | Real Estate
Allowance for loan losses
Total loans	104	439
Commercial real estate non-owner occupied | Total commercial real estate
Allowance for loan losses
Total loans	1,144,566	1,146,674
Commercial real estate non-owner occupied | Total commercial real estate | Real Estate
Allowance for loan losses
Total loans	340	550
Commercial real estate non-owner occupied | Total commercial and industrial
Allowance for loan losses
Total loans	1,144,566
Tax exempt
Allowance for loan losses
Total loans	43,688	42,879
Commercial and industrial | Total commercial and industrial
Allowance for loan losses
Total loans	310,883	297,112
Commercial and industrial | Total commercial and industrial | Real Estate
Allowance for loan losses
Total loans	229	91
Commercial and industrial | Total commercial and industrial | Other Collateral Loans
Allowance for loan losses
Total loans	134	116
Residential mortgages | Total residential real estate
Allowance for loan losses
Total loans	940,334	954,968
Residential mortgages | Total residential real estate | Real Estate
Allowance for loan losses
Total loans	3,908	4,385
Home equity
Allowance for loan losses
Total loans	87,683	90,865
Home equity | Real Estate
Allowance for loan losses
Total loans	808	963
Other consumer | Total consumer
Allowance for loan losses
Total loans	7,832	7,801
Other consumer | Total consumer | Real Estate
Allowance for loan losses
Total loans	$ 5	$ 5

LOANS AND ALLOWANCE FOR CRED_10

LOANS AND ALLOWANCE FOR CREDIT LOSSES - TDR, Recorded Investment and Number of Modifications (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Total residential real estate | Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential mortgage loans collateralized by real estate property in the process of foreclosure	$ 430	$ 253

LOANS AND ALLOWANCE FOR CRED_11

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Concentrations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 2,999,049	$ 2,902,690
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Major Customer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of loan portfolio	11%	12%
Total loans	$ 334,800	$ 336,400

LOANS AND ALLOWANCE FOR CRED_12

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Mortgage Banking (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Servicing loans for participants	$ 595,200	$ 616,000
Contractually specified servicing fees	1,600	1,600
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of year	3,383	3,673
Additions	338	421
Amortization	(560)	(711)
Balance at end of year	3,161	3,383
Loans held for sale	2,189	0
Loans held for sale, unpaid principal balance		2,100
Residential mortgages | Total residential real estate
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Forward delivery commitments	5,000	0
Sale of loans	38,800	38,600
Net gains (losses) on sales of loans	$ 192	$ 161,000

LOANS AND ALLOWANCE FOR CRED_13

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loans to Related Parties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Loans and Leases Receivable, Related Parties [Roll Forward]
Beginning balance	$ 4,763	$ 3,379
Changes in composition		112
New loans		1,576
Less: repayments	(718)	(304)
Ending balance	$ 4,045	$ 4,763

LOANS AND ALLOWANCE FOR CRED_14

LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loan Modifications (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
% of Total Class of Loans	0.01%
Weighted-Average Months of Payment Delay	3 months
Weighted-Average Months of Term Extension	13 months 13 days
Weighted-Average Interest Rate Reduction	1.38%
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted-Average Months of Payment Delay	3 months
Weighted-Average Months of Term Extension	13 months 13 days
Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Weighted-Average Interest Rate Reduction	1.38%
Total commercial and industrial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
% of Total Class of Loans	0.08%
Total residential real estate | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
% of Total Class of Loans	0.01%
Payment Delay
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loan modifications	$ 65
Payment Delay | Total commercial and industrial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loan modifications	65
Term Extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loan modifications	184
Term Extension | Total commercial and industrial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loan modifications	184
Interest Rate Reduction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loan modifications	99
Interest Rate Reduction | Total residential real estate | Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loan modifications	$ 99

PREMISES AND EQUIPMENT (Details

PREMISES AND EQUIPMENT (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 81,680	$ 77,398
Accumulated depreciation	(33,393)	(29,776)
Premises and equipment, net	48,287	47,622
Depreciation expense	$ 4,200	4,600
Estimated selling costs, as a percent	6%
Premises held for sale	$ 413
Gain (Loss) on Sale of Properties			$ (291)
Impairment charges	0	0	157
Land
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	3,882	4,934
Buildings and improvements
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 60,168	56,239
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful live of premises and equipment	5 years
Buildings and improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful live of premises and equipment	39 years
Furniture and equipment
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 17,630	16,225
Furniture and equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful live of premises and equipment	3 years
Furniture and equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful live of premises and equipment	8 years
Other Assets
Property, Plant and Equipment [Line Items]
Premises held for sale, carrying value	$ 1,200	$ 252	226
Premises
Property, Plant and Equipment [Line Items]
Premises held for sale			$ 579
Premises | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful live of premises and equipment	5 years
Premises | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful live of premises and equipment	39 years

GOODWILL AND OTHER INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLES - Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 119,477	$ 119,477
Goodwill, Ending Balance	119,477	119,477	$ 119,477
Goodwill, Impairment Loss	$ 0	$ 0	$ 0

GOODWILL AND OTHER INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLES - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 11,601	$ 11,601
Accumulated Amortization	(6,732)	(5,800)
Net Intangible Assets	4,869	5,801
Amortization of intangible assets	932	932	$ 940
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2024	932
2025	932
2026	932
2027	932
2028	959
and thereafter	$ 182
Minimum
Finite-Lived Intangible Assets [Line Items]
Useful life	5 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Useful life	11 years
Core deposit intangible
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	$ 9,483	9,483
Accumulated Amortization	(5,686)	(4,948)
Net Intangible Assets	3,797	4,535
Customer list and other intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Intangible Assets	2,118	2,118
Accumulated Amortization	(1,046)	(852)
Net Intangible Assets	$ 1,072	$ 1,266

DEPOSITS - Components (Details)

DEPOSITS - Components (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
DEPOSITS.
Time less than $100,000	$ 381,902	$ 157,263
Time $100,000 through $250,000	163,933	118,655
Time $250,000 or more	154,425	47,521
Total	$ 700,260	$ 323,439

DEPOSITS - Maturities, Brokered

DEPOSITS - Maturities, Brokered, Reciprocal (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Time Deposits, Fiscal Year Maturity [Abstract]
Within 1 year	$ 670,961	$ 262,338
Over 1 year to 2 years	17,000	37,937
Over 2 years to 3 years	6,932	12,936
Over 3 years to 4 years	3,434	5,410
Over 4 years to 5 years	1,795	4,319
Over 5 years	138	499
Total	700,260	323,439
Brokered deposits	219,600	15,100
Reciprocal deposits	$ 43,300	$ 27,400

BORROWED FUNDS - Summary of Bor

BORROWED FUNDS - Summary of Borrowed Funds (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Short-term borrowings
Carrying Value	$ 270,765	$ 331,369
Weighted Average Rate	2.88%	2.20%
Long-term borrowings
Carrying Value	$ 60,740	$ 62,877
Weighted Average Rate	6.21%	4.76%
Total borrowings	$ 331,505	$ 394,246
Weighted Average Rate	3.24%	2.45%
Advances from the FHLB
Short-term borrowings
Carrying Value	$ 232,300	$ 318,000
Weighted Average Rate	5.46%	3.84%
Long-term borrowings
Carrying Value	$ 279	$ 2,588
Weighted Average Rate	4.39%	0.48%
Advances from the FRB BTFP
Short-term borrowings
Carrying Value	$ 30,000	$ 0
Weighted Average Rate	4.90%
Other borrowings
Short-term borrowings
Carrying Value	$ 8,465	$ 13,369
Weighted Average Rate	0.13%	0.13%
Subordinated borrowings
Long-term borrowings
Carrying Value	$ 60,461	$ 60,289
Weighted Average Rate	6.22%	4.95%

BORROWED FUNDS - Additional Inf

BORROWED FUNDS - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended
	Mar. 30, 2004	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Outstanding advances of FRB		$ 270,765	$ 331,369
Outstanding amount		60,740	62,877
Financial Guarantee | NHTB Capital Trust II and NHTB Capital Trust III
Debt Instrument [Line Items]
Debentures issued by variable interest entities	$ 20,600
SOFR | Financial Guarantee
Debt Instrument [Line Items]
Interest rate margin	2.79%
Callable Advances
Debt Instrument [Line Items]
Outstanding amount		0	0
Amortizing Advances
Debt Instrument [Line Items]
Outstanding amount		288
FHLB advances
Debt Instrument [Line Items]
Outstanding amount		279
Advances from the FHLB
Debt Instrument [Line Items]
Outstanding advances of FRB		232,300	318,000
Outstanding amount		279	2,588
Credit Facility, Secured, FHLB
Debt Instrument [Line Items]
Line of credit maintained		1,000
Line of credit outstanding		$ 0	0
Federal Reserve Bank Advances
Debt Instrument [Line Items]
Fixed interest rate		4.85%
Principal amount of debt issued		$ 30,000
Maturity period		1 year
Outstanding advances of FRB		$ 30,000	0
Credit Facility, Secured, FRB
Debt Instrument [Line Items]
Line of credit maintained		156,600	90,400
Credit Facility, Unsecured, Federal Funds
Debt Instrument [Line Items]
Line of credit maintained		50,000	50,000
Line of credit outstanding		$ 0	$ 0

BORROWED FUNDS - Maturities of

BORROWED FUNDS - Maturities of FHLB Advances (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Amount
2024	$ 232,300
Thereafter	279
Total FHLB advances	$ 232,579
Weighted Average Rate
2024	5.46%
Thereafter	4.39%
Total FHLB advances	5.46%

BORROWED FUNDS - Subordinated a

BORROWED FUNDS - Subordinated and Junior Subordinated Borrowings (Details) - USD ($) $ in Thousands	Nov. 26, 2019	Dec. 31, 2023	Dec. 31, 2022
Subordinated borrowings
Debt Instrument [Line Items]
Debt issuance costs			$ 331
Subordinated borrowings private placement
Debt Instrument [Line Items]
Principal amount of debt issued	$ 40,000
Fixed interest rate	4.63%
Debt issuance costs		$ 158
Subordinated borrowings private placement | SOFR
Debt Instrument [Line Items]
Interest rate margin	3.27%

BORROWED FUNDS - Repurchase Agr

BORROWED FUNDS - Repurchase Agreements (Details) - Customer Repurchase Agreements - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total secured borrowings	$ 8,465	$ 13,369
US Government sponsored enterprises
Debt Instrument [Line Items]
Total secured borrowings	$ 8,465	$ 13,369

EMPLOYEE BENEFIT PLANS - Inform

EMPLOYEE BENEFIT PLANS - Information about the plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Pension Plans
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	$ 6,245	$ 8,601
Interest cost	318	236
Actuarial Gain/(loss)	119	(2,114)
Benefits paid	(317)	(326)
Settlements		(152)
Projected benefit obligation at end of year	6,365	6,245
Change in fair value of plan assets:
Fair value of plan assets at beginning of year	9,044	12,422
Expected return on plan assets	622	(2,900)
Benefits paid	(317)	(326)
Settlements		(152)
Fair value of plan assets at end of year	9,349	9,044
Underfunded (Overfunded) status	(2,984)	(2,799)
Amounts recognized in consolidated balance sheet: Other assets or liabilities	2,984	2,799
Non-qualified Supplemental Executive Retirement Plan
Change in projected benefit obligation:
Projected benefit obligation at beginning of year	2,093	2,606
Interest cost	97	54
Actuarial Gain/(loss)	(5)	(307)
Benefits paid	(260)	(260)
Projected benefit obligation at end of year	1,925	2,093
Change in fair value of plan assets:
Contributions by employer	260	260
Benefits paid	(260)	(260)
Underfunded (Overfunded) status	1,925	2,093
Amounts recognized in consolidated balance sheet: Other assets or liabilities	$ 1,925	$ 2,093

EMPLOYEE BENEFIT PLANS - Schedu

EMPLOYEE BENEFIT PLANS - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 318	$ 236
Expected return on plan assets	(355)	(612)
Unrecognized loss	53
Recognized loss	(53)
Net periodic pension benefit (credit)	16	(376)
Total recognized in other comprehensive loss (gain)	(185)	1,015
Non-qualified Supplemental Executive Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost	97	54
Unrecognized loss	7	37
Net periodic pension benefit (credit)	104	91
Total recognized in other comprehensive loss (gain)	$ 93	$ (419)

EMPLOYEE BENEFIT PLANS - Amount

EMPLOYEE BENEFIT PLANS - Amounts Recognized in Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	$ (135)	$ 973	$ (1,132)
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	(148)	1,391
Recognized loss	(53)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	16	(376)
Total recognized in other comprehensive income	(185)	1,015
Amounts Recognized in accumulated other comprehensive (gain) loss (pre-tax)	(201)	1,391
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Amortization of actuarial loss	(53)
After tax components of accumulated other comprehensive loss, not yet recognized in net periodic pension cost	1,200
Expected cash contributions	0
Expected amortization from accumulated other comprehensive loss into net periodic pension cost	0
Non-qualified Supplemental Executive Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	100	(382)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	104	91
Total recognized in other comprehensive income	93	(419)
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Accumulated other comprehensive loss at beginning of the year (pre-tax)	180	599
Actuarial (gain) loss	100	(382)
Amortization of actuarial loss	(7)	(37)
Accumulated other comprehensive loss at end of year (pre-tax)	273	$ 180	$ 599
After tax components of accumulated other comprehensive loss, not yet recognized in net periodic pension cost	204
Expected amortization from accumulated other comprehensive loss into net periodic pension cost	$ 10

EMPLOYEE BENEFIT PLANS - Assump

EMPLOYEE BENEFIT PLANS - Assumptions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net periodic pension cost
Transfer into Level 3, Asset	$ 0	$ 0
Transfer out of Level 3, Asset	0	0
Transfer into level 3, Liability	0	0
Transfer out of level 3, Liability	$ 0	$ 0
Pension Plans
Projected benefit obligation
Discount rate, obligation	5%	5.23%
Net periodic pension cost
Discount rate, periodic cost	5.23%	2.80%
Long-term rate of return on plan assets	4%	5%
Pension Plans | Common stock
Net periodic pension cost
Target asset allocation	20%
Pension Plans | Fixed-income securities
Net periodic pension cost
Target asset allocation	80%
Non-qualified Supplemental Executive Retirement Plan
Projected benefit obligation
Discount rate, obligation	4.72%	4.92%	2.12%

EMPLOYEE BENEFIT PLANS - Alloca

EMPLOYEE BENEFIT PLANS - Allocation of Plan Assets (Details) - Pension Plans - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 9,349	$ 9,044	$ 12,422
Recurring
Defined Benefit Plan Disclosure [Line Items]
Plan assets	9,349	9,044
Recurring | Large-cap
Defined Benefit Plan Disclosure [Line Items]
Plan assets	680	660
Recurring | Mid-cap
Defined Benefit Plan Disclosure [Line Items]
Plan assets	195	210
Recurring | Small-cap
Defined Benefit Plan Disclosure [Line Items]
Plan assets	199	214
Recurring | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets	391	420
Recurring | Long duration
Defined Benefit Plan Disclosure [Line Items]
Plan assets	6,698	6,294
Recurring | Common stock
Defined Benefit Plan Disclosure [Line Items]
Plan assets	663	724
Recurring | Common/collective trusts - large-cap
Defined Benefit Plan Disclosure [Line Items]
Plan assets	180	206
Recurring | Cash equivalents - money market
Defined Benefit Plan Disclosure [Line Items]
Plan assets	343	316
Level 1 | Recurring
Defined Benefit Plan Disclosure [Line Items]
Plan assets	9,169	8,838
Level 1 | Recurring | Large-cap
Defined Benefit Plan Disclosure [Line Items]
Plan assets	680	660
Level 1 | Recurring | Mid-cap
Defined Benefit Plan Disclosure [Line Items]
Plan assets	195	210
Level 1 | Recurring | Small-cap
Defined Benefit Plan Disclosure [Line Items]
Plan assets	199	214
Level 1 | Recurring | International
Defined Benefit Plan Disclosure [Line Items]
Plan assets	391	420
Level 1 | Recurring | Long duration
Defined Benefit Plan Disclosure [Line Items]
Plan assets	6,698	6,294
Level 1 | Recurring | Common stock
Defined Benefit Plan Disclosure [Line Items]
Plan assets	663	724
Level 1 | Recurring | Cash equivalents - money market
Defined Benefit Plan Disclosure [Line Items]
Plan assets	343	316
Level 2 | Recurring
Defined Benefit Plan Disclosure [Line Items]
Plan assets	180	206
Level 2 | Recurring | Common/collective trusts - large-cap
Defined Benefit Plan Disclosure [Line Items]
Plan assets	$ 180	$ 206

EMPLOYEE BENEFIT PLANS - Estima

EMPLOYEE BENEFIT PLANS - Estimated Benefit Payments (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
2023	$ 342
2024	337
2025	402
2026	404
2027	423
2028-2032	2,233
Total	4,141
Non-qualified Supplemental Executive Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
2023	260
2024	231
2025	221
2026	221
2027	221
2028-2032	1,104
Total	$ 2,258

EMPLOYEE BENEFIT PLANS - 401(k)

EMPLOYEE BENEFIT PLANS - 401(k) and Other plans (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) item	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Total 401(k) expense	$ 1,200	$ 1,200	$ 1,200
Number of executives | item	1
Salary continuation agreement
Defined Benefit Plan Disclosure [Line Items]
Accrued liability	$ 6,300	6,500
Benefit expense	255	1,200	312
Split-dollar life insurance agreement
Defined Benefit Plan Disclosure [Line Items]
Accrued liability	709	679
Benefit expense	$ 30	$ 197	$ 22

INCOME TAXES - Components of In

INCOME TAXES - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current:
Federal tax expense	$ 10,704	$ 10,444	$ 7,796
State tax expense	2,247	1,551	1,106
Total current tax expense	12,951	11,995	8,902
Deferred tax (benefit) expense	(686)	(707)	427
Total income tax expense	$ 12,265	$ 11,288	$ 9,329

INCOME TAXES - Effective Income

INCOME TAXES - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Amount
Statutory tax rate	$ 11,995	$ 11,517	$ 10,210
Increase (decrease) resulting from:
State taxes, net of federal benefit	1,539	1,477	1,280
Tax exempt interest	(1,042)	(1,003)	(1,240)
Federal tax credits	(471)	(241)	(582)
Officers' life insurance	(578)	(498)	(466)
Stock-based compensation plans	17	(16)	(73)
Other	805	52	200
Total income tax expense	$ 12,265	$ 11,288	$ 9,329
Rate
Statutory tax rate	21%	21%	21%
Increase (decrease) resulting from:
State taxes, net of federal benefit	2.69%	2.69%	2.63%
Tax exempt interest	(1.82%)	(1.83%)	(2.55%)
Federal tax credits	(0.82%)	(0.44%)	(1.20%)
Officers' life insurance	(1.01%)	(0.91%)	(0.96%)
Stock-based compensation plans	0.03%	(0.03%)	(0.15%)
Other	1.40%	0.10%	0.42%
Effective tax rate	21.47%	20.58%	19.19%

INCOME TAXES - Deferred Tax Ass

INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
INCOME TAXES
Deferred tax assets, net	$ 22,979	$ 24,443
Deferred Tax Assets, Gross [Abstract]
Allowance for credit losses	6,593	5,964
Deferred compensation	3,678	3,812
Unrealized gain or loss on securities available for sale	14,702	16,586
Unrealized gain or loss on derivatives	312	539
Deferred loan origination fees, net		129
Non-accrual interest	632	600
Acquisition fair value adjustments	232	213
Equity compensation	1,016	736
Contract incentives	564	766
Lease liability	1,716	1,961
Other	758	840
Total	30,203	32,146
Deferred Tax Liabilities, Gross [Abstract]
Depreciation	1,101	1,723
Deferred loan origination fees, net	129
Branch acquisition costs and goodwill	1,987	1,644
Core deposit intangible	689	806
Prepaid expenses	297	271
Mortgage servicing rights	741	780
Prepaid pension	669	616
Right of use asset	1,611	1,863
Total	$ 7,224	$ 7,703

INCOME TAXES - Tax Cuts and Job

INCOME TAXES - Tax Cuts and Jobs Act (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
INCOME TAXES
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21%	21%	21%
Unrecognized tax benefits	$ 0	$ 0

DERIVATIVE FINANCIAL INSTRUME_3

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2020	Apr. 30, 2020	Nov. 30, 2019
Derivative [Line Items]
Notional Amount	$ 824,393	$ 774,019
Fair Value Asset (Liability)	3,231	4,811
Designated as hedging instrument | Cash flow hedges
Derivative [Line Items]
Notional Amount	125,000	125,000
Fair Value Asset (Liability)	(656)	37
Designated as hedging instrument | Cash flow hedges | Interest rate swap on wholesale funding
Derivative [Line Items]
Notional Amount	$ 75,000	$ 75,000		$ 25,000	$ 50,000
Weighted Average Maturity (in years)	1 year	2 years
Fair Value Asset (Liability)	$ 2,803	$ 4,978
Designated as hedging instrument | Cash flow hedges | Interest rate swap on variable rate loans
Derivative [Line Items]
Notional Amount	$ 50,000	$ 50,000
Weighted Average Maturity (in years)	2 years 2 months 12 days	3 years 2 months 12 days
Fair Value Asset (Liability)	$ (3,459)	$ (4,941)
Designated as hedging instrument | Fair Value Hedging
Derivative [Line Items]
Notional Amount	37,190	37,190
Fair Value Asset (Liability)	3,844	4,774
Designated as hedging instrument | Fair Value Hedging | Interest rate swap on deposits
Derivative [Line Items]
Notional Amount	$ 37,190	$ 37,190	$ 37,200
Weighted Average Maturity (in years)	5 years 7 months 6 days	6 years 7 months 6 days
Fair Value Asset (Liability)	$ 3,844	$ 4,774
Carrying Amount of Hedged Assets	32,680	30,045
Cumulative Amount of Fair Value Hedging Adjustment in Carrying Amount	(4,510)	(7,145)
Designated as hedging instrument | Economic hedges
Derivative [Line Items]
Notional Amount	659,050	611,829
Fair Value Asset (Liability)	(20)
Designated as hedging instrument | Economic hedges | Forward sale commitments
Derivative [Line Items]
Notional Amount	5,000
Fair Value Asset (Liability)	(20)
Designated as hedging instrument | Economic hedges | Customer loan derivative liability | MNA counterparty
Derivative [Line Items]
Notional Amount	$ 184,826	$ 191,987
Weighted Average Maturity (in years)	5 years	5 years 9 months 18 days
Fair Value Asset (Liability)	$ (14,842)	$ (20,287)
Designated as hedging instrument | Economic hedges | Customer loan derivative liability | RPA counterparty
Derivative [Line Items]
Notional Amount	$ 142,199	$ 113,928
Weighted Average Maturity (in years)	4 years 10 months 24 days	6 years
Fair Value Asset (Liability)	$ (286)
Designated as hedging instrument | Economic hedges | Customer loan derivative liability | Customer
Derivative [Line Items]
Notional Amount	$ 327,025	$ 305,914
Weighted Average Maturity (in years)	4 years 10 months 24 days	5 years 10 months 24 days
Fair Value Asset (Liability)	$ 15,128	$ 20,287
Not designated as hedging instrument
Derivative [Line Items]
Notional Amount	3,153
Fair Value Asset (Liability)	63
Not designated as hedging instrument | Interest Rate Lock Commitment
Derivative [Line Items]
Notional Amount	$ 3,153
Weighted Average Maturity (in years)	1 month 6 days
Fair Value Asset (Liability)	$ 63

DERIVATIVE FINANCIAL INSTRUME_4

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Amount of Gain (Loss) recognized in Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income	$ 784	$ 704
Amount of Gain (Loss) Recognized in Income	$ 2,214	$ (284)
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest and Dividend Income, Operating, Interest Expense., Profit (Loss) from Real Estate Operations	Interest and Dividend Income, Operating, Interest Expense., Profit (Loss) from Real Estate Operations
Designated as hedging instrument | Cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income	$ (530)	$ 704
Amount of Gain (Loss) Recognized in Income	895	(126)
Designated as hedging instrument | Cash flow hedges | Interest rate swap on wholesale funding
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income	(1,687)	3,922
Amount of Gain (Loss) Recognized in Income	3,062	475
Designated as hedging instrument | Cash flow hedges | Interest rate swap on variable rate loans
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income	1,157	(3,218)
Amount of Gain (Loss) Recognized in Income	(2,167)	(601)
Designated as hedging instrument | Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income	1,314
Amount of Gain (Loss) Recognized in Income	1,359	140
Designated as hedging instrument | Fair Value Hedging | Interest rate swap on deposits
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income	1,314
Amount of Gain (Loss) Recognized in Income	1,359	140
Designated as hedging instrument | Economic hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income	(20)	(15)
Designated as hedging instrument | Economic hedges | Forward sale commitments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income	(20)	(15)
Not designated as hedging instrument
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income	(20)	(283)
Not designated as hedging instrument | Interest Rate Lock Commitment
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income	$ (20)	$ (283)

DERIVATIVE FINANCIAL INSTRUME_5

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Effect of cash flow hedging and fair value (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Loans
Derivative Instruments, Gain (Loss) [Line Items]
Income and expense line items presented in the consolidated statements of income	$ 149,420	$ 107,797
Securities and other
Derivative Instruments, Gain (Loss) [Line Items]
Income and expense line items presented in the consolidated statements of income	24,762	18,729
Deposits
Derivative Instruments, Gain (Loss) [Line Items]
Income and expense line items presented in the consolidated statements of income	38,232	7,344
Borrowings
Derivative Instruments, Gain (Loss) [Line Items]
Income and expense line items presented in the consolidated statements of income	18,275	5,501
Non-interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Income and expense line items presented in the consolidated statements of income	35,829	35,321
Interest rate swap on wholesale funding | Cash flow hedges | Borrowings
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on cash flow hedges:	3,062	475
Interest rate swap on variable rate loans | Cash flow hedges | Loans
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on cash flow hedges:	(2,167)	(601)
Interest rate swap on securities | Fair Value Hedging | Securities and other
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on fair value hedges:	$ 1,359	$ 140

DERIVATIVE FINANCIAL INSTRUME_6

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Additional information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) item	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) item	Apr. 30, 2020 USD ($)	Nov. 30, 2019 USD ($)
Derivative [Line Items]
Acquisition, conversion and other expenses	$ 283	$ 266	$ 1,667
Notional amount of interest rate swap	824,393	774,019
Designated as hedging instrument | Cash flow hedges
Derivative [Line Items]
Notional amount of interest rate swap	125,000	125,000
Designated as hedging instrument | Cash flow hedges | Interest rate swap on variable rate loans
Derivative [Line Items]
Variable rate loan assets	50,000
Notional amount of interest rate swap	$ 50,000	50,000
Designated as hedging instrument | Cash flow hedges | Interest rate swap on variable rate loans | London Interbank Offered Rate Less Two Days
Derivative [Line Items]
Variable interest rate	0.806%
Designated as hedging instrument | Cash flow hedges | Interest rate swap on variable rate loans | SOFR
Derivative [Line Items]
Interest rate margin	0.11%
Designated as hedging instrument | Cash flow hedges | Interest rate swap on wholesale funding
Derivative [Line Items]
Derivative, Number of Instruments Held | item	2
Term of interest rate swap	5 years
Fixed rate of interest rate swap					0.59%	1.53%
Notional amount of interest rate swap	$ 75,000	75,000			$ 25,000	$ 50,000
Designated as hedging instrument | Cash flow hedges | Interest rate swap on wholesale funding | SOFR
Derivative [Line Items]
Interest rate margin	0.26%
Designated as hedging instrument | Fair Value Hedging
Derivative [Line Items]
Notional amount of interest rate swap	$ 37,190	37,190
Designated as hedging instrument | Fair Value Hedging | Interest rate swap on deposits
Derivative [Line Items]
Derivative, Number of Instruments Held | item				8
Notional amount of interest rate swap	37,190	37,190		$ 37,200
Fixed interest rate, weighted average				1.696%
Designated as hedging instrument | Economic hedges
Derivative [Line Items]
Notional amount of interest rate swap	$ 659,050	$ 611,829

DERIVATIVE FINANCIAL INSTRUME_7

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Offsetting Assets and Liabilities (Details) - Designated as hedging instrument - Economic hedges $ in Thousands	Dec. 31, 2023 USD ($)
Derivative [Line Items]
Net Amount
MNA counterparty
Derivative [Line Items]
Net Amount
RPA counterparty
Derivative [Line Items]
Net Amount
Customer loan derivative liability
Derivative [Line Items]
Derivative Liabilities	(15,128)
Customer loan derivative liability | MNA counterparty
Derivative [Line Items]
Derivative Liabilities	(14,842)
Customer loan derivative liability | RPA counterparty
Derivative [Line Items]
Derivative Liabilities	(286)
Customer loan derivative asset
Derivative [Line Items]
Derivative Assets	15,128
Customer loan derivative asset | MNA counterparty
Derivative [Line Items]
Derivative Assets	14,842
Customer loan derivative asset | RPA counterparty
Derivative [Line Items]
Derivative Assets	$ 286

OTHER COMMITMENTS, CONTINGENC_3

OTHER COMMITMENTS, CONTINGENCIES, AND OFF-BALANCE SHEET ACTIVITIES (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Loss Contingencies [Line Items]
Total	$ 801,984	$ 919,905
Commitments to originate new loans
Loss Contingencies [Line Items]
Total	55,163	51,371
Unused funds on commercial and other lines of credit
Loss Contingencies [Line Items]
Total	202,516	265,587
Unadvanced funds on home equity lines of credit
Loss Contingencies [Line Items]
Total	118,794	122,295
Unadvanced funds on construction and real estate loans
Loss Contingencies [Line Items]
Total	188,794	247,382
Commercial and standby letters of credit
Loss Contingencies [Line Items]
Total	4,217	4,370
Letters of credit securing municipal deposits
Loss Contingencies [Line Items]
Total	$ 232,500	$ 228,900

SHAREHOLDERS' EQUITY AND EARN_3

SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE - Actual and Required Capital Ratios (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Actual
Total capital to risk-weighted assets	$ 450,160	$ 416,900
Common equity tier 1 capital to risk-weighted assets	357,574	326,513
Tier 1 capital to risk-weighted assets	378,194	347,133
Tier 1 capital to average assets	$ 378,194	$ 347,133
Total capital to risk-weighted assets, ratio	0.1424	0.1350
Common equity tier 1 capital to risk-weighted assets, ratio	0.1131	0.1057
Tier 1 capital to risk-weighted assets, ratio	0.1196	0.1124
Tier 1 capital to average assets (leverage ratio)	0.0970	0.0921
Minimum Regulatory Capital Requirements
Total capital to risk-weighted assets	$ 252,888	$ 247,041
Common equity tier 1 capital to risk-weighted assets	142,249	138,960
Tier 1 capital to risk-weighted assets	189,666	185,281
Tier 1 capital to average assets	$ 156,022	$ 150,772
Minimum regulatory capital requirements, Total capital to risk-weighted assets, ratio	0.0800	0.0800
Minimum regulatory capital requirements, Common equity tier 1 capital to risk-weighted assets, ratio	0.045%	0.045%
Minimum regulatory capital requirements, Tier 1 capital to risk-weighted assets, ratio	0.0600	0.0600
Minimum regulatory capital requirements, Tier 1 capital to average assets, (leverage ratio)	0.0400	0.0400
Bank
Actual
Total capital to risk-weighted assets	$ 441,278	$ 410,053
Common equity tier 1 capital to risk-weighted assets	409,312	380,286
Tier 1 capital to risk-weighted assets	409,312	380,286
Tier 1 capital to average assets	$ 409,312	$ 380,286
Total capital to risk-weighted assets, ratio	0.1397	0.1329
Common equity tier 1 capital to risk-weighted assets, ratio	0.1296	0.1233
Tier 1 capital to risk-weighted assets, ratio	0.1296	0.1233
Tier 1 capital to average assets (leverage ratio)	0.1050	0.1010
Minimum Regulatory Capital Requirements
Total capital to risk-weighted assets	$ 252,642	$ 246,812
Common equity tier 1 capital to risk-weighted assets	142,111	138,832
Tier 1 capital to risk-weighted assets	189,482	185,110
Tier 1 capital to average assets	$ 155,908	$ 150,655
Minimum regulatory capital requirements, Total capital to risk-weighted assets, ratio	0.0800	0.0800
Minimum regulatory capital requirements, Common equity tier 1 capital to risk-weighted assets, ratio	0.045%	0.045%
Minimum regulatory capital requirements, Tier 1 capital to risk-weighted assets, ratio	0.0600	0.0600
Minimum regulatory capital requirements, Tier 1 capital to average assets, (leverage ratio)	0.0400	0.0400

SHAREHOLDERS' EQUITY AND EARN_4

SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE - Components of AOCL (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ (49,862)	$ (58,340)
Net unrealized gain (loss) on AFS securities:
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, before tax:	(62,351)	(71,832)
Income taxes related to items of accumulated other comprehensive loss:	14,702	16,586
Accumulated other comprehensive loss	(47,649)	(55,246)	$ 1,985	$ 10,023
Net unrealized gain (loss) on hedging derivatives
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, before tax:	(1,322)	(2,333)
Income taxes related to items of accumulated other comprehensive loss:	312	539
Accumulated other comprehensive loss	(1,010)	(1,794)	870	(1,865)
Net unrealized gain (loss) on post-retirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, before tax:	(1,540)	(1,691)
Income taxes related to items of accumulated other comprehensive loss:	337	391
Accumulated other comprehensive loss	$ (1,203)	$ (1,300)	$ (552)	$ (1,418)

SHAREHOLDERS' EQUITY AND EARN_5

SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE - Components of OCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net unrealized loss arising during the period
Before Tax	$ 784	$ 704
Other comprehensive (loss) income
Before Tax	10,627	(78,848)	$ (5,795)
Tax Effect	(2,149)	18,205	1,358
Total other comprehensive income (loss)	8,478	(60,643)	(4,437)
Net unrealized gain (loss) on AFS securities:
Net unrealized loss arising during the period
Before Tax	9,515	(74,359)	(7,619)
Tax Effect	(1,892)	17,169	1,779
Net of Tax	7,623	(57,190)	(5,840)
Less: reclassification adjustment for gains (losses) realized in net income
Before Tax	34	53	2,870
Tax Effect	(8)	(12)	(672)
Net of Tax	26	41	2,198
Other comprehensive (loss) income
Before Tax	9,481	(74,412)	(10,489)
Tax Effect	(1,884)	17,181	2,451
Total other comprehensive income (loss)	7,597	(57,231)	(8,038)
Net unrealized gain (loss) on hedging derivatives
Net unrealized loss arising during the period
Before Tax	1,011	(3,463)	3,562
Tax Effect	(227)	799	(827)
Net of Tax	784	(2,664)	2,735
Other comprehensive (loss) income
Before Tax	1,011	(3,463)	3,562
Tax Effect	(227)	799	(827)
Total other comprehensive income (loss)	784	(2,664)	2,735
Net unrealized gain (loss) on post-retirement plans
Net unrealized loss arising during the period
Before Tax	135	(973)	1,132
Tax Effect	(38)	225	(266)
Net of Tax	97	(748)	866
Other comprehensive (loss) income
Before Tax	135	(973)	1,132
Tax Effect	(38)	225	(266)
Total other comprehensive income (loss)	$ 97	$ (748)	$ 866

SHAREHOLDERS' EQUITY AND EARN_6

SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE - Changes in AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning accumulated other comprehensive income	$ (58,340)
Total other comprehensive income (loss)	8,478	$ (60,643)	$ (4,437)
Ending accumulated other comprehensive income	(49,862)	(58,340)
Net unrealized gain (loss) on AFS securities:
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning accumulated other comprehensive income	(55,246)	1,985	10,023
Other comprehensive gain (loss) before reclassifications	7,623	(57,190)	(5,840)
Less: amounts reclassified from accumulated other comprehensive income	26	41	2,198
Total other comprehensive income (loss)	7,597	(57,231)	(8,038)
Ending accumulated other comprehensive income	(47,649)	(55,246)	1,985
Net gain (loss) on effective cash flow hedging derivatives
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning accumulated other comprehensive income	(1,794)	870	(1,865)
Other comprehensive gain (loss) before reclassifications	784	(2,664)	2,735
Total other comprehensive income (loss)	784	(2,664)	2,735
Ending accumulated other comprehensive income	(1,010)	(1,794)	870
Net unrealized gain (loss) on post-retirement plans
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning accumulated other comprehensive income	(1,300)	(552)	(1,418)
Other comprehensive gain (loss) before reclassifications	97	(748)	866
Total other comprehensive income (loss)	97	(748)	866
Ending accumulated other comprehensive income	(1,203)	(1,300)	(552)
Accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax
Beginning accumulated other comprehensive income	(58,340)	2,303	6,740
Other comprehensive gain (loss) before reclassifications	8,504	(60,602)	(2,239)
Less: amounts reclassified from accumulated other comprehensive income	26	41	2,198
Total other comprehensive income (loss)	8,478	(60,643)	(4,437)
Ending accumulated other comprehensive income	$ (49,862)	$ (58,340)	$ 2,303

SHAREHOLDERS' EQUITY AND EARN_7

SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE - Amounts Reclassified Out of AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Non-interest income	$ 35,829	$ 35,321	$ 42,261
Non-interest expense	93,479	91,253	90,508
Tax expense	(12,265)	(11,288)	(9,329)
Realized Gains	34	151	2,933
Realized Losses		(98)	(63)
Reclassification out of AOCI | Available-for-sale Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Non-interest income	34	53	2,870
Tax expense	(8)	(12)	(672)
Net of tax	$ 26	$ 41	$ 2,198

SHAREHOLDERS' EQUITY AND EARN_8

SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
SHAREHOLDERS' EQUITY AND EARNINGS PER COMMON SHARE
Net Income (Loss)	$ 44,852	$ 43,557	$ 39,299
Average number of basic common shares outstanding (in shares)	15,142,188	15,040,162	14,968,973
Plus: dilutive effect of stock options and awards outstanding (in shares)	53,048	71,799	76,189
Average number of diluted common shares outstanding (in shares)	15,195,236	15,111,961	15,045,162
Earnings per share:
Basic (in dollars per share)	$ 2.96	$ 2.90	$ 2.63
Diluted (in dollars per share)	$ 2.95	$ 2.88	$ 2.61

STOCK-BASED COMPENSATION PLAN_2

STOCK-BASED COMPENSATION PLANS - (Details) - 2019 Plan	Dec. 31, 2023 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance	500,000
Shares available for grant under this plan	217,435

STOCK-BASED COMPENSATION PLAN_3

STOCK-BASED COMPENSATION PLANS - Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	$ 2,525	$ 1,857	$ 2,065
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	868	578	357
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	857	181	317
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	$ 800	$ 1,098	$ 1,391

STOCK-BASED COMPENSATION PLAN_4

STOCK-BASED COMPENSATION PLANS - Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit recognized from compensation expense	$ 615	$ 475	$ 584
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit recognized from compensation expense	17	22	77
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit recognized from compensation expense	201	136	84
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit recognized from compensation expense	204	43	79
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit recognized from compensation expense	$ 193	$ 274	$ 344

STOCK-BASED COMPENSATION PLAN_5

STOCK-BASED COMPENSATION PLANS - Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Number of Stock Options Outstanding
Beginning balance (in shares)	47,327	57,964
Exercised (in shares)	(8,166)	(10,637)
Expired (in shares)	(3,323)
Ending balance (in shares)	35,838	47,327
Ending vested and expected to vest (in shares)	35,838	47,327
Exercisable, outstanding (in shares)	35,838	47,327
Weighted Average Exercise Price
Beginning balance (usd per share)	$ 21.47	$ 20.89
Exercised (usd per share)	20.64	18.29
Expired (usd per share)	16.99
Ending balance (usd per share)	22.08	21.47
Ending vested and expected to vest (usd per share)	22.08	21.47
Exercisable (usd per share)	$ 22.08	$ 21.47
Aggregate Intrinsic Value (in thousands)
Value of ending outstanding balance	$ 261	$ 500
Ending vested and expected to vest	261	500
Exercisable, aggregate intrinsic value	$ 261	$ 500

STOCK-BASED COMPENSATION PLAN_6

STOCK-BASED COMPENSATION PLANS - Restricted Stock Award Activity (Details) - Restricted Stock Awards - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Number of Awards Outstanding
Beginning balance (in shares)	24,824
Awarded (in shares)	39,585	39,267
Vested (in shares)	(23,235)	(14,443)
Ending balance (in shares)	41,174	24,824
Weighted Average Grant Date Fair Value
Beginning balance (usd per share)	$ 28.49
Granted (usd per share)	29.16	$ 29.21
Vested (usd per share)	27.36	30.46
Ending balance (usd per share)	$ 29.78	$ 28.49

STOCK-BASED COMPENSATION PLAN_7

STOCK-BASED COMPENSATION PLANS - Intrinsic value, Unrecognized compensation and Contractual term (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost			$ 0
Intrinsic value of options exercised	$ 74	$ 94	$ 331
Weighted average remaining contractual term (in years)	1 year 7 months 6 days
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 370
Weighted average remaining maturity (in years)	3 years
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 1,300
Weighted average remaining maturity (in years)	2 years 9 months 18 days
Intrinsic value	$ 0
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 1,500
Weighted average remaining maturity (in years)	3 years

STOCK-BASED COMPENSATION PLAN_8

STOCK-BASED COMPENSATION PLANS - Stock Units Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period (in years)	3 years
Units vested and exercised	28,831	29,200
Number of Units Outstanding
Beginning balance (in shares)	78,435	70,465
Awarded (in shares)	28,831	29,200
Vested (in shares)	(15,601)
Forfeited (in shares)	(6,750)	(21,230)
Ending balance (in shares)	84,915	78,435
Weighted Average Grant Date Fair Value
Beginning balance (usd per share)	$ 25.70	$ 23.88
Granted (usd per share)	30.64	28.49
Vested (usd per share)	25.29
Forfeited (usd per share)	25.30	23.35
Ending balance (usd per share)	$ 27.53	$ 25.70
Performance stock units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant under this plan	0	0
Performance stock units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant under this plan	43,247	43,800
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Units vested and exercised	36,354	36,468
Number of Units Outstanding
Beginning balance (in shares)	115,816	133,617
Awarded (in shares)	36,354	36,468
Vested (in shares)	(43,341)	(43,059)
Forfeited (in shares)	(6,134)	(11,210)
Ending balance (in shares)	102,695	115,816
Weighted Average Grant Date Fair Value
Beginning balance (usd per share)	$ 25.25	$ 23.48
Granted (usd per share)	26.12	28.51
Vested (usd per share)	21.77	22.88
Forfeited (usd per share)	25.84	23.46
Ending balance (usd per share)	$ 27.07	25.25
Restricted stock units | Executive officers
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Weighted Average Grant Date Fair Value
Granted (usd per share)	$ 29.36	28.49
Restricted stock units | Senior vice presidents
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Weighted Average Grant Date Fair Value
Granted (usd per share)	$ 29.36	$ 29.34
Cash based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units vested and exercised	29,043	24,232
Number of Units Outstanding
Awarded (in shares)	29,043	24,232

STOCK-BASED COMPENSATION PLAN_9

STOCK-BASED COMPENSATION PLANS - Employee Stock Purchase Plan (Details) - Employee Stock Purchase Plan - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price as percent of trading value	92%
Maximum shares available for issuance	200,000
Threshold limit for shares to be purchased	400
Value of shares purchased for issuance	$ 25
Common stock issued	22,585	20,921	19,481
Shares available for issuance	177,415	179,079	167,502

FAIR VALUE MEASUREMENTS - Measu

FAIR VALUE MEASUREMENTS - Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 534,574	$ 559,516
Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	2,189
Derivative assets	21,838	30,039
Derivative Liabilities	(18,607)	(25,228)
Recurring | Obligations of US Government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	1,992	2,660
Recurring | US Government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	193,282	215,027
Recurring | US Government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	74,213	79,606
Recurring | Private label
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	59,051	60,154
Recurring | Obligations of states and political subdivisions thereof
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	110,168	107,737
Recurring | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	95,868	94,332
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	0
Derivative assets	0
Derivative Liabilities	0
Recurring | Level 1 | Obligations of US Government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0
Recurring | Level 1 | US Government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	0
Recurring | Level 1 | US Government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	0
Recurring | Level 1 | Private label
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	0
Recurring | Level 1 | Obligations of states and political subdivisions thereof
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0
Recurring | Level 1 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	2,189
Derivative assets	21,775	30,039
Derivative Liabilities	(18,587)	(25,228)
Recurring | Level 2 | Obligations of US Government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	1,992	2,660
Recurring | Level 2 | US Government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	193,282	215,027
Recurring | Level 2 | US Government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	74,213	79,606
Recurring | Level 2 | Private label
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	59,051	60,154
Recurring | Level 2 | Obligations of states and political subdivisions thereof
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	110,168	107,737
Recurring | Level 2 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	95,868	$ 94,332
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	0
Derivative assets	63
Derivative Liabilities	(20)
Recurring | Level 3 | Obligations of US Government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0
Recurring | Level 3 | US Government-sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	0
Recurring | Level 3 | US Government agency
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	0
Recurring | Level 3 | Private label
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage-backed securities available for sale	0
Recurring | Level 3 | Obligations of states and political subdivisions thereof
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0
Recurring | Level 3 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 0

FAIR VALUE MEASUREMENTS - Chang

FAIR VALUE MEASUREMENTS - Changes in Level 3 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation
Fair Value, Recurring Basis, Unobservable Input Reconciliation, Net Derivative Asset (Liability), Gain (Loss), Statement of Income [Extensible List]	Noninterest Income	Noninterest Income
Interest Rate Lock Commitment
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation
Beginning balance		$ 283
Realized gain (loss) recognized in non-interest income	$ 63	(283)
Ending balance	63
Forward Commitments
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation
Beginning balance	$ 8	15
Realized gain (loss) recognized in non-interest income		(7)
Ending balance		$ 8

FAIR VALUE MEASUREMENTS - Unobs

FAIR VALUE MEASUREMENTS - Unobservable Inputs Recurring (Details)	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Derivative asset (liability), fair value	$ 3,231,000	$ 4,811,000
Level 3 fair value measurement recurring basis on asset	0	0
Fair value asset level 1 to level 2	0	0
Fair value asset level 2 to level 1	0	0
Fair value liabilities level 1 to level 2	0	0
Fair value liabilities level 2 to level 1	0	0
Recurring | Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Total	63,000	298,000
Recurring | Level 3 | Forward Commitments | Quoted prices for similar loans in active markets
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Derivative asset (liability), fair value		15,000
Recurring | Level 3 | Interest Rate Lock Commitment | Pull-through Rate Analysis
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Derivative asset (liability), fair value	$ 63,000	$ 283,000
Closing Ratio	95%	85%
Recurring | Level 3 | Interest Rate Lock Commitment | Pricing Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Origination Costs, per loan	$ 1,700	$ 1,700
Recurring | Level 3 | Interest Rate Lock Commitment | Discount Cash Flows
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Derivative asset (liability) net, measurement input	0.010	0.010
Recurring | Level 3 | Forward Commitments | Quoted prices for similar loans in active markets | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Derivative asset (liability) net, measurement input		99.8
Recurring | Level 3 | Forward Commitments | Quoted prices for similar loans in active markets | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Derivative asset (liability) net, measurement input		103.2

FAIR VALUE MEASUREMENTS - Mea_2

FAIR VALUE MEASUREMENTS - Measured on Non-recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Assets
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Noninterest Income	Noninterest Income
Non-recurring | Level 3
Assets
Individually evaluated loans	$ 3,500	$ 16,477
Capitalized servicing rights	6,764	6,845
Premises held for sale	1,154	252
Total	11,418	$ 23,574
Total Gains (Losses)	(12,156)
Non-recurring | Level 3 | Impaired loans
Assets
Total Gains (Losses)	(12,977)
Non-recurring | Level 3 | Capitalized servicing rights
Assets
Total Gains (Losses)	(81)
Non-recurring | Level 3 | Assets held for sale
Assets
Total Gains (Losses)	$ 902

FAIR VALUE MEASUREMENTS - Uno_2

FAIR VALUE MEASUREMENTS - Unobservable Inputs Non-recurring (Details) - Non-recurring - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Individually evaluated loans	$ 3,500	$ 16,477
Capitalized servicing rights	6,764	6,845
Premises held for sale	1,154	252
Total	11,418	23,574
Quoted prices for similar loans in active markets
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Individually evaluated loans	2,437	13,587
Discount Cash Flows
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Individually evaluated loans	$ 1,063	$ 2,890
Impaired loans | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Loss severity	10%	0.01%
Appraised value	$ 80	$ 80
Cash flows	$ 2	$ 100
Discount rate	3.25%	3.63%
Impaired loans | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Loss severity	43%	0.40%
Appraised value	$ 965	$ 3,859
Cash flows	$ 520	$ 539
Discount rate	7.13%	6.38%
Capitalized servicing rights
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Constant prepayment rate	7.20%	7.29%
Discount rate	10.06%	9.54%
Assets held for sale
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Appraised value		$ 1,223
Selling Costs	6%	6%
Assets held for sale | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items}
Appraised value		$ 267

FAIR VALUE MEASUREMENTS - Fair

FAIR VALUE MEASUREMENTS - Fair Values and Carrying Amounts (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial Assets
Securities available for sale	$ 534,574	$ 559,516
Financial Liabilities
Time deposits	700,260	323,439
Carrying Amount
Financial Assets
Cash and cash equivalents	94,842	92,295
Securities available for sale	534,574	559,516
FHLB stock	14,834	14,893
Loans held for sale	2,189
Net loans	2,999,049	2,902,690
Accrued interest receivable	4,921	4,257
Cash surrender value of bank-owned life insurance policies	80,037	81,197
Derivative assets	21,838	30,039
Financial Liabilities
Non-maturity deposits	2,482,012	2,719,992
Time deposits	658,482	323,439
Securities sold under agreements to repurchase	38,504	13,369
FHLB advances	232,579	320,588
Subordinated borrowings	60,422	60,289
Derivative liabilities	15,607	25,228
Fair Value
Financial Assets
Cash and cash equivalents	94,842	92,295
Securities available for sale	534,574	559,516
FHLB stock	14,834	14,893
Loans held for sale	2,189
Net loans	2,832,173	2,774,863
Accrued interest receivable	4,921	4,257
Cash surrender value of bank-owned life insurance policies	80,037	81,197
Derivative assets	21,838	30,039
Financial Liabilities
Non-maturity deposits	2,325,307	2,309,555
Time deposits	651,855	315,180
Securities sold under agreements to repurchase	38,504	13,369
FHLB advances	232,375	320,244
Subordinated borrowings	67,635	66,846
Derivative liabilities	15,607	25,228
Fair Value | Level 1
Financial Assets
Cash and cash equivalents	94,842	92,295
Fair Value | Level 2
Financial Assets
Securities available for sale	534,574	559,516
FHLB stock	14,834	14,893
Loans held for sale	2,189
Accrued interest receivable	4,921	4,257
Cash surrender value of bank-owned life insurance policies	80,037	81,197
Derivative assets	21,775	30,039
Financial Liabilities
Non-maturity deposits	2,325,307	2,309,555
Time deposits	651,855	315,180
Securities sold under agreements to repurchase	38,504	13,369
FHLB advances	232,375	320,244
Subordinated borrowings	67,635	66,846
Derivative liabilities	15,587	25,228
Fair Value | Level 3
Financial Assets
Net loans	2,832,173	$ 2,774,863
Derivative assets	63
Financial Liabilities
Derivative liabilities	$ 20

REVENUE FROM CONTRACTS WITH C_3

REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Total non-interest income	$ 35,829	$ 35,321	$ 42,261
Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	29,451	29,364
Not within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	6,378	5,957
Products and services transferred at a point in time | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	15,751	15,552
Products and services transferred over time | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	13,700	13,812
Non-interest Income | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	29,451	29,364
Trust management fees | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	12,766	13,022
Financial services fees | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	1,517	1,551
Interchange fees | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	7,845	7,736
Customer deposit fees | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	6,280	5,935
Other customer service fees | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	$ 1,043	$ 1,120

REVENUE FROM CONTRACTS WITH C_4

REVENUE FROM CONTRACTS WITH CUSTOMERS - Contract Balances from Contracts with Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Balances from contracts with customers only:
Other Assets	$ 1,178	$ 1,211
Other Liabilities	$ 1,769	$ 2,345
Revenue, Practical Expedient, Incremental Cost of Obtaining Contract [true false]	true

LEASES - Assets and liabilities

LEASES - Assets and liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
LEASES
Operating lease right-of-use assets	$ 6,874	$ 8,078
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Asset	Other Asset
Operating lease liabilities	$ 7,322	$ 8,501
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities

LEASES - Lease Term and Cost (D

LEASES - Lease Term and Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
LEASES
Weighted-average remaining lease term (in years)	6 years 3 months 10 days	7 years 2 months 1 day
Weighted-average discount rate	3.10%	3.09%
Operating lease cost	$ 1,343	$ 1,344	$ 1,295
Variable lease cost	485	402	229
Total lease cost	$ 1,828	$ 1,746	$ 1,524

LEASES - Future Minimum Payment

LEASES - Future Minimum Payments for Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
December 31, 2024	$ 1,316
December 31, 2025	1,092
December 31, 2026	987
December 31, 2027	864
December 31, 2028	726
Thereafter	2,484
Total future minimum lease payments	7,469
Amounts representing interest	(147)
Operating lease liabilities	$ 7,322	$ 8,501

CONDENSED FINANCIAL STATEMENT_3

CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY - Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Assets
Cash	$ 42,221	$ 39,933
Premises and equipment	48,287	47,622
Other assets	79,936	87,729
Total assets	3,970,885	3,909,803
Liabilities and Shareholders Equity
Shareholders' equity	432,059	393,450	$ 424,147	$ 407,065
Total liabilities and shareholders' equity	3,970,885	3,909,803
Parent Company
Assets
Cash	7,850	7,350
Investment in subsidiaries	484,574	447,937
Premises and equipment	785	765
Other assets	5,070	3,130
Total assets	498,279	459,182
Liabilities and Shareholders Equity
Subordinated notes	60,461	60,289
Accrued expenses	5,759	5,443
Shareholders' equity	432,059	393,450
Total liabilities and shareholders' equity	$ 498,279	$ 459,182

CONDENSED FINANCIAL STATEMENT_4

CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY - Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Condensed Financial Statements, Captions [Line Items]
Interest expense	$ 56,507	$ 12,845	$ 15,231
Non-interest expense	93,479	91,253	90,508
Income tax benefit	12,265	11,288	9,329
Net income	44,852	43,557	39,299
Parent Company
Condensed Financial Statements, Captions [Line Items]
Dividends from subsidiaries	23,156	20,682	15,557
Other income	1,142	976	740
Total income	24,298	21,658	16,297
Interest expense	3,691	2,981	2,632
Non-interest expense	5,834	5,183	5,455
Total expense	9,525	8,164	8,087
Income before taxes and equity in undistributed income of subsidiaries	14,773	13,493	8,210
Income tax benefit	(1,985)	(1,709)	(1,741)
Income before equity in undistributed income of subsidiaries	16,758	15,202	9,951
Equity in undistributed income of subsidiaries	28,094	28,355	29,348
Net income	$ 44,852	$ 43,557	$ 39,299

CONDENSED FINANCIAL STATEMENT_5

CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY - Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash flows from operating activities:
Net Income (Loss)	$ 44,852	$ 43,557	$ 39,299
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Net cash provided by operating activities	47,403	55,909	59,168
Cash flows from investing activities:
Net cash used in investing activities	(62,290)	(408,888)	(4,752)
Cash flows from financing activities:
Net cash provided by financing activities	17,434	194,885	(30,034)
Net change in cash and cash equivalents	2,547	(158,094)	24,382
Cash and cash equivalents at beginning of year	92,295	250,389	226,007
Cash and cash equivalents at end of period	94,842	92,295	250,389
Parent Company
Cash flows from operating activities:
Net Income (Loss)	44,852	43,557	39,299
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Equity in undistributed income of subsidiaries	(28,094)	(28,355)	(29,348)
Other, net	(1,537)	3,187	(5,582)
Net cash provided by operating activities	15,221	18,389	4,369
Cash flows from financing activities:
Net proceeds from common stock	1,845	1,723	1,534
Common stock cash dividends paid	(16,566)	(15,334)	(14,072)
Net cash provided by financing activities	(14,721)	(13,611)	(12,538)
Net change in cash and cash equivalents	500	4,778	(8,169)
Cash and cash equivalents at beginning of year	7,350	2,572	10,741
Cash and cash equivalents at end of period	$ 7,850	$ 7,350	$ 2,572

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pay vs Performance Disclosure
Net Income (Loss)	$ 44,852	$ 43,557	$ 39,299

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false