ACNB (ACNB) 10-Q 7 Nov 24 2024 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2024	Oct. 30, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	1-35015
Entity Registrant Name	ACNB CORPORATION
Entity Incorporation, State or Country Code	PA
Entity Tax Identification Number	23-2233457
Entity Address, Address Line One	16 Lincoln Square
Entity Address, City or Town	Gettysburg
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	17325
City Area Code	717
Local Phone Number	334-3161
Title of 12(b) Security	Common Stock, $2.50 par value per share
Trading Symbol	ACNB
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Document Shell Company Report	false
Entity Common Stock, Shares Outstanding		8,548,625
Entity Central Index Key	0000715579
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Amendment Flag	false

CONSOLIDATED STATEMENTS OF COND

CONSOLIDATED STATEMENTS OF CONDITION (UNAUDITED) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
ASSETS
Cash and due from banks	$ 24,636	$ 21,442
Interest-bearing deposits with banks	33,456	44,516
Total Cash and Cash Equivalents	58,092	65,958
Equity securities with readily determinable fair values	947	928
Investment securities available for sale, at estimated fair value	418,079	451,693
Investment securities held to maturity, at amortized cost (fair value $59,038, $59,057)	64,578	64,600
Loans held for sale	1,080	280
Total loans, net of unearned income	1,677,112	1,627,988
Allowance for credit losses	(17,214)	(19,969)
Loans, net	1,659,898	1,608,019
Premises and equipment, net	25,542	26,283
Right of use asset	2,110	2,615
Restricted investment in bank stocks	10,853	9,677
Investment in bank-owned life insurance	81,344	79,871
Investments in low-income housing partnerships	909	1,003
Goodwill	44,185	44,185
Intangible assets, net	8,142	9,082
Foreclosed assets held for resale	406	467
Other assets	44,749	54,186
Total assets	2,420,914	2,418,847
Deposits:
Noninterest-bearing	463,501	500,332
Interest-bearing	1,327,816	1,361,481
Total deposits	1,791,317	1,861,813
Short-term borrowings	37,769	56,882
Long-term borrowings	255,322	195,292
Lease liability	2,110	2,615
Allowance for unfunded commitments	1,349	1,719
Other liabilities	26,292	23,065
Total Liabilities	2,114,159	2,141,386
Stockholders’ Equity:
Preferred Stock, $2.50 par value; 20,000,000 shares authorized; no shares outstanding at September 30, 2024 and December 31, 2023	0	0
Common stock, $2.50 par value; 20,000,000 shares authorized; 8,940,133 and 8,896,119 shares issued; 8,548,625 and 8,511,453 shares outstanding at September 30, 2024 and December 31, 2023, respectively	22,344	22,231
Treasury stock, at cost; 391,508 and 384,666 shares at September 30, 2024 and December 31, 2023, respectively	(11,203)	(10,954)
Additional paid-in capital	98,697	97,602
Retained earnings	230,752	213,491
Accumulated other comprehensive loss	(33,835)	(44,909)
Total Stockholders’ Equity	306,755	277,461
Total Liabilities and Stockholders’ Equity	$ 2,420,914	$ 2,418,847

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF CONDITION (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Securities held to maturity, fair value	$ 59,038	$ 59,057
Preferred stock, par value (in dollars per share)	$ 2.50	$ 2.50
Preferred stock, shares authorized (in shares)	20,000,000	20,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 2.50	$ 2.50
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, shares issued (in shares)	8,940,133	8,896,119
Common stock, shares outstanding (in shares)	8,548,625	8,511,453
Treasury stock, shares (in shares)	391,508	384,666

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Loans, including fees
Taxable	$ 23,108	$ 20,285	$ 67,253	$ 58,130
Tax-exempt	311	361	943	1,069
Investment Securities:
Taxable	2,617	2,477	8,193	8,451
Tax-exempt	284	284	852	883
Dividends	251	104	739	196
Other	670	723	2,104	2,627
Total Interest and Dividend Income	27,241	24,234	80,084	71,356
INTEREST EXPENSE
Deposits	3,112	928	7,915	1,887
Short-term borrowings	204	439	847	564
Long-term borrowings	2,983	1,122	8,823	2,078
Total Interest Expense	6,299	2,489	17,585	4,529
Net Interest Income	20,942	21,745	62,499	66,827
Provision for (reversal of) credit losses	81	250	(2,686)	74
Provision for (reversal of) unfunded commitments	40	(171)	(370)	226
Net Interest Income after Provisions for (Reversal of) Credit Losses and Unfunded Commitments	20,821	21,666	65,555	66,527
NONINTEREST INCOME
Insurance commissions	2,787	2,629	7,649	7,371
Earnings on investment in bank-owned life insurance	503	473	1,473	1,399
Net gains (losses) on sales or calls of investment securities	0	0	69	(739)
Net gains (losses) on equity securities	28	(27)	19	(22)
Gain on assets held for sale	0	14	0	337
Other	339	410	756	873
Total Noninterest Income	6,833	6,297	18,927	17,475
NONINTEREST EXPENSES
Salaries and employee benefits	11,017	10,069	32,611	30,335
Equipment	1,698	1,554	4,997	4,784
Net occupancy	945	942	3,066	2,981
Professional services	409	617	1,554	1,600
FDIC and regulatory	365	388	1,088	932
Other tax	360	323	1,086	965
Intangible assets amortization	304	352	940	1,072
Supplies and postage	236	229	610	633
Marketing and corporate relations	99	159	275	472
Merger-related	1,137	0	1,160	0
Other	1,674	1,703	4,910	5,125
Total Noninterest Expenses	18,244	16,336	52,297	48,899
Income Before Income Taxes	9,410	11,627	32,185	35,103
Provision for income taxes	2,206	2,583	6,934	7,512
Net Income	$ 7,204	$ 9,044	$ 25,251	$ 27,591
PER SHARE DATA
Basic earnings (in dollars per share)	$ 0.85	$ 1.06	$ 2.97	$ 3.24
Diluted earnings (in dollars per share)	$ 0.84	$ 1.06	$ 2.96	$ 3.23
Weighted average shares of common stock outstanding, basic (in shares)	8,507,140	8,517,917	8,500,860	8,518,006
Weighted average shares of common stock outstanding, diluted (in shares)	8,545,578	8,551,545	8,532,691	8,544,732
ATM debit card charges
NONINTEREST INCOME
Revenue from contract with customer, excluding assessed tax	$ 828	$ 845	$ 2,488	$ 2,502
Service charges on deposits
NONINTEREST INCOME
Revenue from contract with customer, excluding assessed tax	1,048	1,000	3,060	2,951
Wealth management
NONINTEREST INCOME
Revenue from contract with customer, excluding assessed tax	1,188	953	3,219	2,772
Gain from mortgage loans held for sale
NONINTEREST INCOME
Revenue from contract with customer, excluding assessed tax	$ 112	$ 0	$ 194	$ 31

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
NET INCOME	$ 7,204	$ 9,044	$ 25,251	$ 27,591
INVESTMENT SECURITIES
Unrealized gains (losses) arising during the period, net of income tax expense (benefit) of $3,621, $(2,133), $3,034 and $(3,575), respectively	12,334	(7,033)	10,331	(8,288)
Reclassification adjustment for net AFS investment securities gains included in net income, net of income tax expense of $0, $0, $16 and $171, respectively	0	0	53	556
Total unrealized gain (loss) on AFS investment securities	12,334	(7,033)	10,384	(7,732)
Amortization of unrealized losses on AFS investment securities transferred to HTM, net of income taxes of $63, $32, $189 and $110, respectively	215	244	645	731
PENSION
Amortization of pension net loss, transition liability, and prior service cost, net of income tax expense of $4, $52, $13 and $76, respectively	15	74	45	246
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	12,564	(6,715)	11,074	(6,755)
TOTAL COMPREHENSIVE INCOME	$ 19,768	$ 2,329	$ 36,325	$ 20,836

CONSOLIDATED STATEMENTS OF CO_3

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
SECURITIES: Unrealized gains (losses) arising during the period, income taxes	$ 3,621	$ (2,133)	$ 3,034	$ (3,575)
SECURITIES: Reclassification adjustment for gains included in net income, income taxes	0	0	16	171
SECURITIES: Amortization of unrealized losses on securities transferred to held to maturity, income taxes	63	32	189	110
PENSION: Amortization of pension net loss, transition liability, and prior service cost, income taxes	$ 4	$ 52	$ 13	$ 76

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2022	$ 245,042	$ 22,086	$ (8,927)	$ 96,022	$ 193,873	$ (58,012)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect for adoption of Topic 326, net of tax	(2,368)				(2,368)
Net income	9,023				9,023
Other comprehensive income (loss), net of taxes	6,052					6,052
Common stock shares issued	188	15		173
Repurchased shares	(29)		(29)
Restricted stock grants, net of forfeitures and withheld for taxes	0	97		(97)
Compensation expense for restricted shares	317			317
Cash dividends declared	(2,384)				(2,384)
Ending balance at Mar. 31, 2023	255,841	22,198	(8,956)	96,415	198,144	(51,960)
Beginning balance at Dec. 31, 2022	245,042	22,086	(8,927)	96,022	193,873	(58,012)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	27,591
Ending balance at Sep. 30, 2023	255,638	22,224	(10,502)	96,744	211,939	(64,767)
Beginning balance at Mar. 31, 2023	255,841	22,198	(8,956)	96,415	198,144	(51,960)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,524				9,524
Other comprehensive income (loss), net of taxes	(6,092)					(6,092)
Common stock shares issued	185	14		171
Cash dividends declared	(2,389)				(2,389)
Ending balance at Jun. 30, 2023	257,069	22,212	(8,956)	96,586	205,279	(58,052)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,044				9,044
Other comprehensive income (loss), net of taxes	(6,715)					(6,715)
Common stock shares issued	170	12		158
Repurchased shares	(1,546)		(1,546)
Cash dividends declared	(2,384)				(2,384)
Ending balance at Sep. 30, 2023	255,638	22,224	(10,502)	96,744	211,939	(64,767)
Beginning balance at Dec. 31, 2023	277,461	22,231	(10,954)	97,602	213,491	(44,909)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,768				6,768
Other comprehensive income (loss), net of taxes	(1,915)					(1,915)
Common stock shares issued	174	13		161
Repurchased shares	(147)		(147)
Restricted stock grants, net of forfeitures and withheld for taxes	(408)	71		(479)
Compensation expense for restricted shares	534			534
Cash dividends declared	(2,547)				(2,547)
Ending balance at Mar. 31, 2024	279,920	22,315	(11,101)	97,818	217,712	(46,824)
Beginning balance at Dec. 31, 2023	277,461	22,231	(10,954)	97,602	213,491	(44,909)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	25,251
Ending balance at Sep. 30, 2024	306,755	22,344	(11,203)	98,697	230,752	(33,835)
Beginning balance at Mar. 31, 2024	279,920	22,315	(11,101)	97,818	217,712	(46,824)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	11,279				11,279
Other comprehensive income (loss), net of taxes	425					425
Common stock shares issued	186	15		171
Compensation expense for restricted shares	241			241
Cash dividends declared	(2,720)				(2,720)
Ending balance at Jun. 30, 2024	289,331	22,330	(11,101)	98,230	226,271	(46,399)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,204				7,204
Other comprehensive income (loss), net of taxes	12,564					12,564
Common stock shares issued	237	14		223
Repurchased shares	(102)		(102)
Compensation expense for restricted shares	244			244
Cash dividends declared	(2,723)				(2,723)
Ending balance at Sep. 30, 2024	$ 306,755	$ 22,344	$ (11,203)	$ 98,697	$ 230,752	$ (33,835)

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023
Statement of Stockholders' Equity [Abstract]
Common stock shares issued (in shares)	5,638	6,054	4,898	5,165	5,526	5,889
Common stock shares repurchased (in shares)	2,642		4,200	46,378		850
Restricted stock grants, net of forfeitures and withheld for taxes (in shares)			27,424			43,074
Cash dividends declared (in dollars per share)	$ 0.32	$ 0.32	$ 0.30	$ 0.28	$ 0.28	$ 0.28

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 7,204	$ 6,768	$ 9,044	$ 9,023	$ 25,251	$ 27,591
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sales of loans originated for sale					(194)	(31)
Gain on sales of assets held for sale					0	(337)
Earnings on investment in bank-owned life insurance	(503)		(473)		(1,473)	(1,399)
(Gain) loss on sales or calls of securities	0		0		(69)	739
(Gain) loss on equity securities	(28)		27		(19)	22	$ (18)
Restricted stock compensation expense					1,019	317
Depreciation and amortization	744		825		2,268	2,559
(Reversal of) provision for credit losses and unfunded commitments					(3,056)	300
Net amortization of investment securities premiums					1,300	494
Decrease (increase) in interest receivable					93	(812)
Increase in interest payable					737	397
Mortgage loans originated for sale					(9,010)	(1,191)
Proceeds from sales of loans originated for sale					8,404	1,345
Decrease in other assets					10,954	1,414
Increase in deferred tax asset					(4,144)	(4,436)
Increase in other liabilities					2,015	5,019
Net Cash Provided by Operating Activities					34,076	31,991
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from calls/maturities of investment securities held to maturity					554	904
Proceeds from calls/maturities of investment securities available for sale					31,783	26,375
Proceeds from sales of investment securities available for sale					14,336	78,624
Proceeds from sale of equity securities					0	591
Purchase of restricted investment in bank stocks					(1,176)	(3,848)
Net increase in loans					(49,193)	(77,486)
Acquisition of insurance books of business/agency					0	(174)
Capital expenditures					(587)	(174)
Proceeds from sales of assets held for sale					0	3,730
Net Cash (Used in) Provided by Investing Activities					(4,283)	28,542
CASH FLOWS FROM FINANCING ACTIVITIES
Net decrease in noninterest-bearing deposits					(36,831)	(29,519)
Net decrease in interest-bearing deposits					(33,665)	(218,097)
Net decrease in short-term borrowings					(19,113)	(8,848)
Proceeds from long-term borrowings					60,000	100,000
Dividends paid					(7,990)	(7,157)
Common stock repurchased					(249)	(1,575)
Common stock issued, net of restricted stock forfeitures and withheld for taxes					189	543
Net Cash Used In Financing Activities					(37,659)	(164,653)
Net Decrease in Cash and Cash Equivalents					(7,866)	(104,120)
CASH AND CASH EQUIVALENTS — BEGINNING		$ 65,958		$ 168,161	65,958	168,161	168,161
CASH AND CASH EQUIVALENTS — ENDING	$ 58,092		$ 64,041		58,092	64,041	$ 65,958
Supplemental disclosures of cash flow information
Cash paid for interest					16,848	3,717
Cash paid for income taxes					$ 4,175	$ 7,350

Basis of Presentation and Natur

Basis of Presentation and Nature of Operations	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Nature of Operations	Basis of Presentation and Nature of Operations ACNB Corporation, headquartered in Gettysburg, Pennsylvania, provides banking, insurance, and financial services to businesses and consumers through its wholly-owned subsidiaries, ACNB Bank and ACNB Insurance Services. The Bank engages in full-service commercial and consumer banking and wealth management services, including trust and retail brokerage, through its 27 community banking offices, including 18 community banking office locations in Adams, Cumberland, Franklin, Lancaster and York Counties, Pennsylvania, and nine community banking office locations in Carroll and Frederick Counties, Maryland. There are also loan production offices in York, Pennsylvania, and Hunt Valley, Maryland. ACNB Insurance Services is a full-service insurance agency based in Westminster, Maryland, with additional locations in Jarrettsville, Maryland, and Gettysburg, Pennsylvania. The agency offers a broad range of property, casualty, health, life and disability insurance to both individual and commercial clients. The accompanying unaudited Consolidated Financial Statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts of assets and liabilities as of the date of the financial statements as well as revenues and expenses during the period. Actual results could differ from those estimates. In the opinion of management, the accompanying unaudited Consolidated Financial Statements contain all adjustments necessary for a fair presentation. All such adjustments are of a normal recurring nature. These Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and the notes included in the Corporation’s Annual Report on Form 10-K for the year ended December 31, 2023. The Corporation evaluates subsequent events through the filing date of this Form 10-Q with the SEC. The results of operations for the three and nine month periods ended September 30, 2024, are not necessarily indicative of the results to be expected for the full year. Certain reclassifications have been made to the prior period financial statements to conform to the current period presentation. Reclassifications had no material effect on prior year net income or stockholders’ equity. Pending Merger On July 23, 2024, ACNB entered into an Agreement and Plan of Merger with Traditions Bancorp, Inc., holding company for Traditions Bank, York, Pennsylvania, whereby ACNB will acquire Traditions and Traditions Bank in an all-stock transaction. Pursuant to the terms of the Definitive Agreement, Traditions shareholders will receive 0.7300 shares of ACNB common stock for each share of Traditions common stock that they own as of the closing date. Based on the 20-day Volume Weighted Average Price of ACNB common stock as of July 19, 2024, the transaction is valued at $73.5 million or $26.43 per share. As of September 30, 2024 and December 31, 2023, Traditions had total assets of $860.0 million and $840.1 million, respectively, total loans of $683.2 million and $668.8 million, respectively, and total deposits of $740.0 million and $731.1 million, respectively. Common shares outstanding totaled 2,754,062 and 2,736,544 at September 30, 2024 and December 31, 2023, respectively. Traditions Bank operates eight full-service branches in South Central Pennsylvania. The transaction is subject to regulatory approvals and satisfaction of customary closing conditions, including approval from ACNB and Traditions shareholders. Currently, the transaction is expected to close in the first quarter of 2025. Significant Accounting Policies The significant accounting policies used in preparation of the Consolidated Financial Statements are disclosed in the Corporation’s 2023 Annual Report on Form 10-K. Those significant accounting policies are unchanged at September 30, 2024. Recently Issued Accounting Standards In December 2022, the FASB issued ASU 2022-06, “Deferral of the Sunset Date of Reference Rate Reform (Topic 848)” . This ASU extends the sunset date of ASC Topic 848 (Reference Rate Reform) to December 31, 2024, in response to the United Kingdom’s FCA extension of the intended cessation date of LIBOR in the United States. The Corporation evaluated the impact of this standard, and believes that its adoption will not have a material impact on the Corporation’s Consolidated Financial Statements. In November 2023, the FASB issued ASU 2023-07, “Segment Reporting (Topic 280)”. The amendments in this ASU are expected to improve financial reporting by requiring disclosure of incremental segment information on an annual and interim basis for all public entities to enable investors to develop more decision-useful financial analyses. The amendments of ASU 2023-07 are effective for fiscal years beginning after December 15, 2023, and for interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The amendments in ASU 2023-07 should be applied retrospectively to all periods presented on the financial statements. The Corporation adopted the amendments of ASU 2023-07 related to annual disclosure requirements effective January 1, 2024, and will present any newly required annual disclosures in its Annual Report on Form 10-K for the year ending December 31, 2024 and intends to adopt the amendments of ASU 2023-07 related to interim disclosure requirements effective January 1, 2025, and will present any newly required interim disclosures beginning with its Quarterly Report on Form 10-Q for the period ending March 31, 2025. Adoption of this standard is not expected to have a material impact on the Corporation’s Consolidated Financial Statements. In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740)”. This ASU is intended to improve the disclosures for income taxes to address requests from investors, lenders, creditors and other allocators of capital that use the financial statements to make capital allocation decisions. The amendments in ASU 2023-09 will require consistent categories and greater disaggregation of information in the rate reconciliation disclosure as well as disclosure of income taxes paid disaggregated by jurisdiction. The amendments of ASU 2023-09 are effective for annual periods beginning after December 15, 2024, and early adoption is permitted for annual financial statements that have not yet been issued or made available for issuance. The Corporation intends to adopt the amendments of ASU 2023-09 effective January 1, 2025, and will include the required disclosures in its Annual Report on Form 10-K for the year ending December 31, 2025. The Corporation is currently evaluating the impact of this standard, and believes that its adoption will not have a material impact on the Corporation’s Consolidated Financial Statements.

Earnings Per Share and Restrict

Earnings Per Share and Restricted Stock	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Earnings Per Share and Restricted Stock	Earnings Per Share and Restricted Stock The Corporation has a simple capital structure. Basic earnings per share of common stock is calculated as net income available to common shareholders divided by the weighted average number of shares outstanding less unvested restricted stock at the end of the period. Diluted earnings per share is calculated as net income available to common shareholders divided by the weighted average number of shares outstanding. Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Weighted average shares outstanding (basic) 8,507,140 8,517,917 8,500,860 8,518,006 Dilutive effect of unvested shares 38,438 33,628 31,831 26,726 Weighted average shares outstanding (diluted) 8,545,578 8,551,545 8,532,691 8,544,732 Per share: Basic $ 0.85 $ 1.06 $ 2.97 $ 3.24 Diluted 0.84 1.06 2.96 3.23 There were no antidilutive instruments at September 30, 2024 and 2023. Stock Incentive Plan On May 1, 2018, shareholders approved and ratified the ACNB Corporation 2018 Omnibus Stock Incentive Plan, effective as of March 20, 2018, in which awards shall not exceed, in the aggregate, 400,000 shares of common stock, plus any shares that were authorized, but not issued, under the ACNB Corporation 2009 Restricted Stock Plan. The ACNB Corporation 2009 Restricted Stock Plan expired by its own terms after 10 years on February 24, 2019. No further shares may be issued under this plan. The remaining 174,055 shares were transferred to the ACNB Corporation 2018 Omnibus Stock Incentive Plan. As of September 30, 2024, 138,019 shares were issued under this plan, of which 38,438 were unvested. Plan expense is recognized over the vesting period of the stock issued and resulted in $244 thousand and $265 thousand of compensation expense during the three months ended September 30, 2024 and 2023, respectively. Compensation expense recognized during both the nine months ended September 30, 2024 and 2023 was $1.0 million. Share Repurchase Plan On October 24, 2022, the Corporation announced that the Board of Directors approved on October 18, 2022, a plan to repurchase, in open market and privately negotiated transactions, up to 255,575, or approximately 3%, of the outstanding shares

Investment Securities

Investment Securities	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Investment Securities	Investment Securities Fair value of equity securities with readily determinable fair values at September 30, 2024 and December 31, 2023, are as follows: (In thousands) Fair Value at Beginning of Period Sales/reclassification Gains (Losses) Losses on Fair Value Nine Months Ended September 30, 2024 CRA Mutual Fund $ 928 $ — $ 19 $ — $ 947 Twelve Months Ended December 31, 2023 CRA Mutual Fund $ 915 $ — $ 13 $ — $ 928 Canapi Ventures SBIC Fund 206 206 — — — Stock in other banks 598 592 5 (11) — $ 1,719 $ 798 $ 18 $ (11) $ 928 Amortized cost and fair value of securities were as follows: (In thousands) Amortized Gross Gross Fair September 30, 2024 Available for Sale U.S. Government and agencies $ 166,194 $ — $ 13,985 $ 152,209 Collateralized mortgage obligations 40,889 — 2,822 38,067 Residential mortgage-backed securities 164,113 43 15,088 149,068 Commercial mortgage-backed securities 65,566 803 3,472 62,897 Corporate bonds 18,102 — 2,264 15,838 $ 454,864 $ 846 $ 37,631 $ 418,079 Held to Maturity State and municipal $ 62,665 $ — $ 5,477 57,188 Residential mortgage-backed securities 1,913 — 63 1,850 $ 64,578 $ — $ 5,540 $ 59,038 December 31, 2023 Available for Sale U.S. Government and agencies $ 176,458 $ — $ 19,663 $ 156,795 Collateralized mortgage obligations 45,189 — 4,105 41,084 Residential mortgage-backed securities 178,441 19 19,630 158,830 Commercial mortgage-backed securities 69,498 344 4,552 65,290 Corporate bonds 32,326 202 2,834 29,694 $ 501,912 $ 565 $ 50,784 $ 451,693 Held to Maturity State and municipal $ 62,133 $ — $ 5,419 $ 56,714 Residential mortgage-backed securities 2,467 — 124 2,343 $ 64,600 $ — $ 5,543 $ 59,057 The following table shows the Corporation’s investments’ gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at September 30, 2024, and December 31, 2023: Less than 12 Months 12 Months or More Total (In thousands) Fair Unrealized Fair Unrealized Fair Unrealized September 30, 2024 Available for Sale U.S. Government and agencies $ — $ — $ 152,209 $ 13,985 $ 152,209 $ 13,985 Collateralized mortgage obligations — — 38,067 2,822 38,067 2,822 Residential mortgage-backed securities — — 146,297 15,088 146,297 15,088 Commercial mortgage-backed securities — — 30,174 3,472 30,174 3,472 Corporate bonds — — 15,838 2,264 15,838 2,264 $ — $ — $ 382,585 $ 37,631 $ 382,585 $ 37,631 Held to Maturity State and municipal $ — $ — $ 57,188 $ 5,477 $ 57,188 $ 5,477 Residential mortgage-backed securities — — 1,850 63 1,850 63 $ — $ — $ 59,038 $ 5,540 $ 59,038 $ 5,540 December 31, 2023 Available for Sale U.S. Government and agencies $ — $ — $ 156,795 $ 19,663 $ 156,795 $ 19,663 Collateralized mortgage obligations — — 41,085 4,104 41,085 4,104 Residential mortgage-backed securities — — 156,295 19,630 156,295 19,630 Commercial mortgage-backed securities — — 33,063 4,553 33,063 4,553 Corporate bonds — — 15,279 2,834 15,279 2,834 $ — $ — $ 402,517 $ 50,784 $ 402,517 $ 50,784 Held to Maturity State and municipal $ — $ — $ 56,714 $ 5,419 $ 56,714 $ 5,419 Residential mortgage-backed securities — — 2,343 124 2,343 124 $ — $ — $ 59,057 $ 5,543 $ 59,057 $ 5,543 All mortgage-backed security investments are government sponsored enterprise pass-through instruments issued by the Federal National Mortgage Association or Federal Home Loan Mortgage Corporation or they are issued by Government National Mortgage Association which is backed by the U.S. government. The Company evaluates AFS debt securities for impairment in unrealized loss positions at each measurement date to determine whether the decline in the fair value below the amortized cost basis is due to credit-related factors or noncredit-related factors. There was no impairment on AFS debt securities as of September 30, 2024 and December 31, 2023. The Company evaluates HTM debt securities for expected credit losses at each measurement date to determine if an ACL is required. The Corporation did not have an ACL for HTM investment securities as of September 30, 2024 and December 31, 2023. In estimating credit events, management considers whether it intends to sell the security or if it is more likely than not that it will be required to sell the security before anticipated recovery or if it does not expect to recover the entire amortized cost basis. Amortized cost and fair value at September 30, 2024, by contractual maturity, where applicable, are shown below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay with or without penalties. Securities not due at a single maturity date are shown separately. Available for Sale Held to Maturity (In thousands) Amortized Fair Amortized Fair 1 year or less $ 16,322 $ 16,029 $ — $ — Over 1 year through 5 years 110,053 102,347 4,191 3,824 Over 5 years through 10 years 55,921 48,125 24,314 23,966 Over 10 years 2,000 1,546 34,160 29,398 Mortgage-backed securities 270,568 250,032 1,913 1,850 $ 454,864 $ 418,079 $ 64,578 $ 59,038 The proceeds from sales and calls of securities and the associated gains and losses are listed below: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2024 2023 2024 2023 Proceeds $ 15,908 $ — $ 46,119 $ 79,215 Gross gains — — 87 243 Gross losses — — 18 982 At September 30, 2024, and December 31, 2023, securities with a carrying value of $204.4 million and $233.7 million, respectively, were pledged as collateral as required by law on public and trust deposits, repurchase agreements, and for other purposes.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	9 Months Ended
	Sep. 30, 2024
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Loans and Allowance for Credit Losses	Loans and Allowance for Credit Losses The following table presents the composition of the loan portfolio: (In thousands) September 30, 2024 December 31, 2023 Commercial real estate $ 957,904 $ 898,709 Residential mortgage 397,994 394,189 Commercial and industrial 152,148 152,344 Home equity lines of credit 84,316 90,163 Real estate construction 75,953 84,341 Consumer 9,773 9,954 Gross loans 1,678,088 1,629,700 Unearned income (976) (1,712) Total loans, net of unearned income $ 1,677,112 $ 1,627,988 One of the factors used to monitor the performance and credit quality of the loan portfolio is to analyze the age of the loans receivable as determined by the length of time a recorded payment is past due. The following tables present the classes of the loan portfolio summarized by the past due status: (In thousands) 30–59 Days Past Due 60–89 Days ≥ 90 Days Total Past Current Total Loans Loans September 30, 2024 Commercial real estate $ 318 $ — $ 346 $ 664 $ 957,240 $ 957,904 $ 32 Residential mortgage — 585 375 960 397,034 397,994 375 Commercial and industrial 138 50 175 363 151,785 152,148 19 Home equity lines of credit 454 — — 454 83,862 84,316 — Real estate construction 15 — 12 27 75,926 75,953 12 Consumer 21 — — 21 9,752 9,773 — Gross Loans $ 946 $ 635 $ 908 $ 2,489 $ 1,675,599 $ 1,678,088 $ 438 (In thousands) 30–59 Days Past Due 60–89 Days ≥ 90 Days Total Past Current Total Loans Loans December 31, 2023 Commercial real estate $ 150 $ 347 $ — $ 497 $ 898,212 $ 898,709 $ — Residential mortgage 1,293 388 849 2,530 391,659 394,189 505 Commercial and industrial 50 — 159 209 152,135 152,344 — Home equity lines of credit 414 — 654 1,068 89,095 90,163 654 Real estate construction 12 — — 12 84,329 84,341 — Consumer 8 — 3 11 9,943 9,954 3 Gross Loans $ 1,927 $ 735 $ 1,665 $ 4,327 $ 1,625,373 $ 1,629,700 $ 1,162 Nonaccrual and Nonperforming Loans Loans individually evaluated consist of nonaccrual loans, presented in the following table: (In thousands) With a Related Allowance Without a Related Allowance Total September 30, 2024 Commercial real estate $ 314 $ 3,292 $ 3,606 Commercial and industrial 991 1,368 2,359 Home equity lines of credit — 168 168 $ 1,305 $ 4,828 $ 6,133 December 31, 2023 Commercial real estate $ 315 $ 1,164 $ 1,479 Residential mortgage — 343 343 Commercial and industrial 1,004 — 1,004 Home equity lines of credit — 185 185 $ 1,319 $ 1,692 $ 3,011 During both the three and nine months ended September 30, 2024 and 2023, no material amount of interest income was recognized on nonaccrual loans subsequent to their classification as nonaccrual. Total nonperforming loans are as follows: (In thousands) September 30, 2024 December 31, 2023 Nonaccrual loans $ 6,133 $ 3,011 Greater than or equal to 90 days past due and accruing 438 1,162 Total nonperforming loans $ 6,571 $ 4,173 Collateral-Dependent Loans A loan is considered to be collateral-dependent when the debtor is experiencing financial difficulty and repayment is expected to be provided substantially through the sale or operation of the collateral. For all classes of loans deemed collateral-dependent, the Corporation elected the practical expedient to estimate expected credit losses based on the collateral’s fair value less cost to sell. In most cases, the Corporation records a partial charge-off to reduce the collateral-dependent loan’s carrying value to the collateral’s fair value less cost to sell. Substantially all of the collateral supporting collateral-dependent loans consists of various types of real estate, including residential properties, commercial properties, such as retail centers, office buildings, and lodging, agriculture land, and vacant land. Changes in the fair value of the collateral for individually evaluated loans are reported as provision for credit losses or a reversal of provision for credit losses in the period of change. The following table presents the amortized cost basis of individually evaluated loans as of the periods presented: Type of Collateral (In thousands) Business Assets Real Estate September 30, 2024 Commercial real estate $ — $ 3,606 Commercial and industrial 2,359 — Home equity lines of credit — 168 Total $ 2,359 $ 3,774 December 31, 2023 Commercial real estate $ — $ 1,479 Residential mortgage — 343 Commercial and industrial 1,004 — Home equity lines of credit — 185 Total $ 1,004 $ 2,007 Consumer residential mortgages and home equity lines of credit which are well secured by residential real estate properties and are in the process of collection are not considered nonaccrual, however, formal foreclosure proceedings are in process. These loans totaled $515 thousand at September 30, 2024 and $1.3 million at December 31, 2023 and are included in nonperforming loans if they are greater than or equal to 90 days past due. Loan Modifications The Corporation evaluates all loan restructurings according to the accounting guidance for loan modifications to determine if the restructuring results in a new loan or a continuation of the existing loan. Loan modifications to borrowers experiencing financial difficulty that result in a direct change in the timing or amount of contractual cash flows include situations where there is principal forgiveness, interest rate reductions, other-than-insignificant payment delays, term extensions, or combinations of the above. Therefore, the disclosures related to loan restructurings are only for modifications that directly affect cash flows. The following table presents the amortized cost basis of loans that were both experiencing financial difficulty and modified during the three and nine months ended September 30, 2024, by class and by type of modification. The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivable is also presented below: (Dollars in thousands) Combination Payment Deferral and Interest Only Payments Percent of Class of Financing Receivable Commercial real estate $ 2,293 0.2 % Commercial and industrial 1,748 1.1 % Total $ 4,041 During the three and nine months ended September 30, 2023, the Corporation did not modify any loans. During the nine months ended September 30, 2024 and 2023, the Corporation did not have any commitments to lend any additional funds on existing modified loans. The following presents the performance of loans modified in the previous twelve months as of September 30, 2024: (In thousands) Current 30-89 Days Past Due ≥ 90 Days Total Past Due Commercial real estate $ 2,293 $ — $ — $ — Commercial and industrial 1,967 — — — Total $ 4,260 $ — $ — $ — As of September 30, 2024, the Corporation had no loans that defaulted during the period that had been modified preceding the payment default when the borrower was experiencing financial difficulty at the time of modification. For purposes of this disclosure, a default occurs when, within 12 months of the original modification, either a full or partial charge-off occurs or the loan becomes 90 days or more past due. Allowance for Credit Losses The Corporation maintains an ACL at a level determined to be adequate to absorb expected credit losses associated with the Corporation’s financial instruments over the life of those instruments as of the balance sheet date. The ACL consists of loans evaluated collectively and individually for expected credit losses. The Corporation considers the performance of the loan portfolio and its impact on the ACL and does not assign internal risk ratings to smaller balance, homogeneous loans such as certain residential mortgage, home equity lines of credit, construction loans to individuals secured by residential real estate and consumer loans. For these loans, the Corporation evaluates credit quality based on the aging status of the loan and designates as performing and nonperforming. The following summarizes designated internal risk categories by portfolio segment for loans assigned a risk rating and those evaluated based on the performance status: September 30, 2024 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis (In thousands) 2024 2023 2022 2021 2020 Prior Total Internally Risk Rated: Commercial real estate Pass $ 97,426 $ 134,288 $ 164,910 $ 123,922 $ 56,029 $ 318,720 $ 18,020 $ 913,315 Special Mention 488 2,848 4,830 5,878 2,795 15,505 1,797 34,141 Substandard — — 1,781 — 1,496 7,171 — 10,448 Total Commercial real estate $ 97,914 $ 137,136 $ 171,521 $ 129,800 $ 60,320 $ 341,396 $ 19,817 $ 957,904 Residential mortgage Pass $ 18,113 $ 37,415 $ 23,683 $ 38,909 $ 13,743 $ 33,124 $ 419 $ 165,406 Special Mention — 881 270 575 246 3,199 94 5,265 Substandard — — — — — 68 — 68 Total Residential Mortgage $ 18,113 $ 38,296 $ 23,953 $ 39,484 $ 13,989 $ 36,391 $ 513 $ 170,739 Commercial and industrial Pass $ 8,979 $ 11,038 $ 20,545 $ 30,192 $ 13,511 $ 25,644 $ 33,010 $ 142,919 Special Mention 172 153 248 223 82 449 2,703 4,030 Substandard — 536 468 354 16 780 3,045 5,199 Total Commercial and industrial $ 9,151 $ 11,727 $ 21,261 $ 30,769 $ 13,609 $ 26,873 $ 38,758 $ 152,148 Home equity lines of credit Pass $ — $ 296 $ 94 $ — $ — $ 281 $ 5,227 $ 5,898 Special Mention — — — — — — 696 696 Substandard — — — — — 174 — 174 Total Home equity lines of credit $ — $ 296 $ 94 $ — $ — $ 455 $ 5,923 $ 6,768 Real estate construction Pass $ 9,985 $ 29,172 $ 16,397 $ 1,220 $ 306 $ 1,091 $ 8,739 $ 66,910 Special Mention — 118 281 — — 679 46 1,124 Substandard — — — — — 64 — 64 Total Real estate construction $ 9,985 $ 29,290 $ 16,678 $ 1,220 $ 306 $ 1,834 $ 8,785 $ 68,098 Performance Rated: Residential mortgage Performing $ 12,390 $ 40,244 $ 41,284 $ 13,732 $ 14,879 $ 104,279 $ 72 $ 226,880 Nonperforming — — — — — 375 — 375 Total Residential Mortgage $ 12,390 $ 40,244 $ 41,284 $ 13,732 $ 14,879 $ 104,654 $ 72 $ 227,255 Home equity lines of credit Performing $ — $ 19 $ 35 $ — $ 12 $ 2,809 $ 74,673 $ 77,548 Total Home equity lines of credit $ — $ 19 $ 35 $ — $ 12 $ 2,809 $ 74,673 $ 77,548 Real estate construction Performing $ 4,240 $ 1,773 $ 565 $ 165 $ 193 $ 907 $ — $ 7,843 Nonperforming — — — — — 12 — 12 Total Real estate construction $ 4,240 $ 1,773 $ 565 $ 165 $ 193 $ 919 $ — $ 7,855 Consumer Performing $ 1,823 $ 1,710 $ 1,917 $ 552 $ 333 $ 904 $ 2,534 $ 9,773 Total Consumer $ 1,823 $ 1,710 $ 1,917 $ 552 $ 333 $ 904 $ 2,534 $ 9,773 Year-to-date gross charge-offs $ — $ — $ 9 $ — $ — $ 7 $ 147 $ 163 Total Portfolio loans: Pass $ 134,503 $ 212,209 $ 225,629 $ 194,243 $ 83,589 $ 378,860 $ 65,415 $ 1,294,448 Special Mention 660 4,000 5,629 6,676 3,123 19,832 5,336 45,256 Substandard — 536 2,249 354 1,512 8,257 3,045 15,953 Performing 18,453 43,746 43,801 14,449 15,417 108,899 77,279 322,044 Nonperforming — — — — — 387 — 387 Total Portfolio loans $ 153,616 $ 260,491 $ 277,308 $ 215,722 $ 103,641 $ 516,235 $ 151,075 $ 1,678,088 Year-to-date gross charge-offs $ — $ — $ 9 $ — $ — $ 7 $ 147 $ 163 December 31, 2023 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis (In thousands) 2023 2022 2021 2020 2019 Prior Total Internally Risk Rated: Commercial real estate Pass $ 136,158 $ 152,767 $ 130,994 $ 60,918 $ 65,856 $ 287,026 $ 13,636 $ 847,355 Special Mention 1,927 6,385 5,920 1,904 8,222 16,244 1,994 42,596 Substandard — — — 1,530 704 6,524 — 8,758 Total Commercial real estate $ 138,085 $ 159,152 $ 136,914 $ 64,352 $ 74,782 $ 309,794 $ 15,630 $ 898,709 Residential mortgage Pass $ 39,146 $ 27,612 $ 41,031 $ 14,758 $ 10,492 $ 27,274 $ 402 $ 160,715 Special Mention 588 82 593 397 826 2,457 62 5,005 Substandard — — — — — 218 — 218 Total Residential mortgage $ 39,734 $ 27,694 $ 41,624 $ 15,155 $ 11,318 $ 29,949 $ 464 $ 165,938 Commercial and industrial Pass $ 12,319 $ 24,259 $ 34,830 $ 15,614 $ 13,922 $ 17,780 $ 25,147 $ 143,871 Special Mention 128 303 290 529 140 459 2,014 3,863 Substandard 7 135 499 91 9 1,597 2,272 4,610 Total Commercial and industrial $ 12,454 $ 24,697 $ 35,619 $ 16,234 $ 14,071 $ 19,836 $ 29,433 $ 152,344 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 110 $ — $ 110 Home equity lines of credit Pass $ 300 $ 99 $ — $ — $ — $ 131 $ 5,235 $ 5,765 Special Mention — — — — — — 727 727 Substandard — — — — — 362 — 362 Total Home equity lines of credit $ 300 $ 99 $ — $ — $ — $ 493 $ 5,962 $ 6,854 Real estate construction Pass $ 19,766 $ 39,758 $ 3,953 $ 1,160 $ — $ 2,604 $ 8,003 $ 75,244 Special Mention — 465 — 92 — 725 — 1,282 Substandard — — — — — 69 — 69 Total Real estate construction $ 19,766 $ 40,223 $ 3,953 $ 1,252 $ — $ 3,398 $ 8,003 $ 76,595 Performance Rated: Residential mortgage Performing $ 33,884 $ 45,221 $ 14,878 $ 16,184 $ 9,059 $ 108,021 $ 156 $ 227,403 Nonperforming — — — — — 848 — 848 Total Residential mortgage $ 33,884 $ 45,221 $ 14,878 $ 16,184 $ 9,059 $ 108,869 $ 156 $ 228,251 Home equity lines of credit Performing $ 23 $ 38 $ — $ 13 $ 94 $ 4,742 $ 77,745 $ 82,655 Nonperforming — — — — — 92 562 654 Total Home equity lines of credit $ 23 $ 38 $ — $ 13 $ 94 $ 4,834 $ 78,307 $ 83,309 Real estate construction Performing $ 5,571 $ 753 $ 175 $ 210 $ 170 $ 867 $ — $ 7,746 Total Real estate construction $ 5,571 $ 753 $ 175 $ 210 $ 170 $ 867 $ — $ 7,746 Consumer Performing $ 2,351 $ 2,685 $ 778 $ 522 $ 271 $ 1,085 $ 2,259 $ 9,951 Nonperforming — — — — — — 3 3 Total Consumer $ 2,351 $ 2,685 $ 778 $ 522 $ 271 $ 1,085 $ 2,262 $ 9,954 Year-to-date gross charge-offs $ 48 $ 83 $ 42 $ 55 $ 23 $ 78 $ 67 $ 396 Total Portfolio loans Pass $ 207,689 $ 244,495 $ 210,808 $ 92,450 $ 90,270 $ 334,815 $ 52,423 $ 1,232,950 Special Mention 2,643 7,235 6,803 2,922 9,188 19,885 4,797 53,473 Substandard 7 135 499 1,621 713 8,770 2,272 14,017 Performing 41,829 48,697 15,831 16,929 9,594 114,715 80,160 327,755 Nonperforming — — — — — 940 565 1,505 Total Portfolio loans $ 252,168 $ 300,562 $ 233,941 $ 113,922 $ 109,765 $ 479,125 $ 140,217 $ 1,629,700 Year-to-date gross charge-offs $ 48 $ 83 $ 42 $ 55 $ 23 $ 188 $ 67 $ 506 During the three months ended June 30, 2024, the Corporation revised estimates driven by a realignment of the peer group used for the CECL allowance process, an update to loss driver factors from third-party data, and an update to the application of prepayment and curtailment rate studies since implementation of CECL on January 1, 2023. These estimates, which were based on more current information available as of June 30, 2024, drive input assumptions which are used in the determination of the Corporation’s allowance for credit losses and the reserve for unfunded commitments. These updated estimates were the primary drivers for a $2.7 million and $370 thousand reversal of the provisions for credit losses and for unfunded commitments, respectively, for the nine months ended September 30, 2024. The following table presents the activity in the ACL by loan portfolio segment: (In thousands) Commercial Residential Commercial Home Equity Real Estate Consumer Unallocated Total Three Months Ended September 30, 2024 Beginning balance - July 1, 2024 $ 10,196 $ 2,839 $ 1,465 $ 312 $ 2,247 $ 103 $ — $ 17,162 Charge-offs — — — — — (51) — (51) Recoveries — — 6 — — 16 — 22 Provisions (credits) 196 31 301 (16) (467) 36 — 81 Ending balance - September 30, 2024 $ 10,392 $ 2,870 $ 1,772 $ 296 $ 1,780 $ 104 $ — $ 17,214 Nine Months Ended September 30, 2024 Beginning balance - January 1, 2024 $ 12,010 $ 3,303 $ 2,048 $ 397 $ 2,070 $ 141 $ — $ 19,969 Charge-offs — — — — — (163) — (163) Recoveries — — 24 — — 70 — 94 Provisions (credits) (1,618) (433) (300) (101) (290) 56 — (2,686) Ending balance - September 30, 2024 $ 10,392 $ 2,870 $ 1,772 $ 296 $ 1,780 $ 104 $ — $ 17,214 Three Months Ended September 30, 2023 Beginning balance - July 1, 2023 $ 11,728 $ 3,075 $ 1,941 $ 388 $ 1,885 $ 131 $ — $ 19,148 Charge-offs — — (81) — — (109) — (190) Recoveries — — 32 — — 24 — 56 Provisions 170 78 (381) 5 279 99 — 250 Ending balance - September 30, 2023 $ 11,898 $ 3,153 $ 1,511 $ 393 $ 2,164 $ 145 $ — $ 19,264 Nine Months Ended September 30, 2023 Beginning balance - January 1, 2023 $ 10,016 $ 3,029 $ 2,848 $ 347 $ 1,000 $ 376 $ 245 $ 17,861 Impact of CECL adoption 1,106 297 (762) 17 1,347 (142) (245) 1,618 Charge-offs — — (110) — — (279) — (389) Recoveries — — 42 — — 58 — 100 Provisions 776 (173) (507) 29 (183) 132 — 74 Ending balance - September 30, 2023 $ 11,898 $ 3,153 $ 1,511 $ 393 $ 2,164 $ 145 $ — $ 19,264

Deposits

Deposits	9 Months Ended
	Sep. 30, 2024
Deposits [Abstract]
Deposits	Deposits Deposits were comprised of the following for the periods presented: (In thousands) September 30, 2024 December 31, 2023 Noninterest-bearing demand deposits $ 463,501 $ 500,332 Interest-bearing demand deposits 509,930 524,289 Money market 249,197 264,907 Savings 311,958 340,134 Total demand and savings 1,534,586 1,629,662 Time 256,731 232,151 Total deposits $ 1,791,317 $ 1,861,813 Time deposits include brokered deposits totaling $1.5 million at September 30, 2024, and none at December 31, 2023. Scheduled maturities of time deposits at September 30, 2024 are as follows: Time Deposits (In thousands) Less than $250,000 $250,000 or more Less than 1 year $ 183,010 $ 44,229 1 - 2 years 16,136 783 2 - 3 years 7,589 — 3 - 4 years 2,764 — 4 - 5 years 2,130 — Thereafter 90 — Total time deposits $ 211,719 $ 45,012

Borrowings

Borrowings	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Borrowings	Borrowings Short-term borrowings were comprised of the following for the periods presented: (In thousands) September 30, 2024 December 31, 2023 Securities sold under repurchase agreements $ 37,769 $ 26,882 FHLB advance — 30,000 $ 37,769 $ 56,882 Borrowings with original maturities of one year or less are classified as short-term. Securities sold under repurchase agreements are comprised of customer repurchase agreements, which are sweep accounts with next-day maturities utilized by larger commercial customers to earn interest on their funds. Securities are pledged to these customers in an amount at least equal to the outstanding balance. Under an agreement with the FHLB, the Bank has short-term borrowing capacity included within its maximum borrowing capacity. All FHLB advances are collateralized by a security agreement covering qualifying loans. In addition, all FHLB advances are secured by the FHLB capital stock owned by the Bank having a par value of $10.6 million at September 30, 2024. The Bank also has unsecured lines of credit that total $192.0 million with correspondent banks for overnight federal funds borrowings. There were no advances on these lines at September 30, 2024 and December 31, 2023. Long-term borrowings were comprised of the following for the periods presented: (In thousands) September 30, 2024 December 31, 2023 FHLB fixed-rate advances maturing: 2026 $ 80,000 $ 80,000 2027 90,000 60,000 2028 35,000 35,000 2029 30,000 — Trust preferred subordinated debt 1 5,322 5,292 Subordinated debt 15,000 15,000 $ 255,322 $ 195,292 ___________________________ 1 Net of purchase accounting fair value mark The long-term FHLB advances have a weighted average rate of 4.52%, and are collateralized by the assets defined in the security agreement and FHLB capital stock described previously. Based on this collateral and ACNB’s holding of FHLB stock, ACNB is eligible to borrow up to $920.1 million, of which $684.0 million was available at September 30, 2024. The trust preferred subordinated debt is comprised of debt securities issued by FCBI in December 2006 and assumed by ACNB Corporation through the acquisition of FCBI. FCBI completed the private placement of an aggregate of $6.0 million of trust preferred securities. The interest rate on the subordinated debentures is adjusted quarterly to 163 bps over the three-month CME Term SOFR plus applicable tenor spread adjustment. On September 15, 2024, the most recent interest rate reset date, the interest rate was adjusted to 6.84% for the period ending December 15, 2024. The trust preferred securities mature on December 15, 2036, and may be redeemed at par, at the Corporation’s option, on any interest payment date. The trust preferred subordinated debt is considered Tier 1 capital for the consolidated capital ratios. On March 30, 2021, the Company entered into Purchase Agreements with the Purchasers pursuant to which the Company sold and issued $15.0 million in aggregate principal amount of its 4.00% fixed-to-floating rate subordinated notes due March 31, 2031. The Subordinated Notes bear interest at a fixed rate of 4.00% per year, from and including March 30, 2021 to, but excluding, March 31, 2026 or earlier redemption date. From and including March 31, 2026 to, but excluding the maturity date or earlier redemption date, the interest rate will reset quarterly at a variable rate equal to the then current 90-day average SOFR plus 329 bps. As provided in the Subordinated Notes, the interest rate on the Subordinated Notes during the applicable floating rate period may be determined based on a rate other than the 90-day average SOFR. The Subordinated Notes were issued by the Corporation to the Purchasers at a price equal to 100% of their face amount. The Subordinated Notes have a stated maturity of March 31, 2031, are redeemable by the Company at its option, in whole or in part, on or after March 30, 2026, and at any time upon the occurrences of certain events. The Subordinated Notes are considered Tier 2 capital for the consolidated capital ratios.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Fair value is the exchange price that would be received to sell the asset or transfer the liability in an orderly transaction (that is, not a forced liquidation or distressed sale) between market participants at the measurement date under current market conditions. Fair value measurement establishes a fair value hierarchy that prioritizes the inputs to valuation methods used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are as follows: Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2 - Quoted prices for similar assets or liabilities in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability. Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported with little or no market activity). An asset or liability’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The following tables present assets measured at fair value and the basis of measurement used at the periods presented: September 30, 2024 (In thousands) Basis Level 1 Level 2 Level 3 Total Equity securities with readily determinable fair values Recurring $ 947 $ — $ — $ 947 AFS Investment Securities: U.S. Government and agencies — 152,209 — 152,209 Collateralized mortgage obligations — 38,067 — 38,067 Residential mortgage-backed securities — 149,068 — 149,068 Commercial mortgage-backed securities — 62,897 — 62,897 Corporate bonds — 15,838 — 15,838 Total AFS Investment Securities Recurring $ — $ 418,079 $ — $ 418,079 Loans held for sale Recurring — 1,080 — 1,080 Individually evaluated loans Non-recurring — — 262 262 Foreclosed assets held for resale Non-recurring — — 406 406 December 31, 2023 (In thousands) Basis Level 1 Level 2 Level 3 Total Equity securities with readily determinable fair values Recurring $ 928 $ — $ — $ 928 AFS Investment Securities: U.S. Government and agencies — 156,795 — 156,795 Collateralized mortgage obligations — 41,084 — 41,084 Residential mortgage-backed securities — 158,830 — 158,830 Commercial mortgage-backed securities — 65,290 — 65,290 Corporate bonds — 29,694 — 29,694 Total AFS Investment Securities Recurring $ — $ 451,693 $ — $ 451,693 Loans held for sale Recurring — 280 — 280 Individually evaluated loans Non-recurring — — 242 242 Foreclosed assets held for resale Non-recurring — — 467 467 The valuation techniques used to measure fair value for the items in the preceding tables are as follows: Equity securities - The fair value of equity securities with readily determinable fair values is recorded on the Consolidated Statements of Condition, with realized and unrealized gains and losses reported in noninterest income on the Consolidated Statements of Income. Available for sale investment securities – Included in this asset category are debt securities. Level 2 investment securities are valued by a third-party pricing service. The pricing service uses pricing models that vary based on asset class and incorporate available market information, including quoted prices of investment securities with similar characteristics. Because many fixed income securities do not trade on a daily basis, pricing models use available information, as applicable, through processes such as benchmark yield curves, benchmarking of like securities, sector groupings and matrix pricing. Standard market inputs include: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data, including market research publications. For certain security types, additional inputs may be used, or some of the standard market inputs may not be applicable. • U.S. Government and agencies – These debt securities are classified as Level 2. Fair values are determined by a third-party pricing service, as detailed above. • Collateralized mortgage obligations and Mortgage-backed securities – These debt securities are classified as Level 2. Fair values are determined by a third-party pricing service, as detailed above. • Corporate bonds – This category consists of subordinated and senior debt issued by financial institutions and are classified as Level 2 investments. The fair values for these corporate debt securities are determined by a third-party pricing service, as detailed above. Loans held for sale – This category includes mortgage loans held for sale that are measured at fair value utilizing Level 2 measurements. Fair values as of September 30, 2024 and December 31, 2023, were measured as the price that secondary market investors were offering for loans with similar characteristics. Loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or fair value, as determined by aggregate outstanding commitments from investors or current investor yield requirements. Net unrealized losses are recognized through a valuation allowance by charges to income. Individually evaluated loans – This category consists of loans that were individually evaluated for impairment and have a specific reserve. They are classified as Level 3 assets. Foreclosed assets held for resale – This category consists of foreclosed assets that are held for resale and classified as Level 3 assets, for which the fair values were based on estimated selling prices less estimated selling costs for similar assets in active markets. The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis for which the Corporation has utilized Level 3 inputs to determine fair value: (Dollars in thousands) Fair Value Estimate Valuation Technique 1 Unobservable Input 2 Range Weighted Average September 30, 2024 Individually evaluated loans $ 262 Appraisal of collateral Appraisal adjustments (17) – (100)% (81)% Foreclosed assets held for resale 406 Appraisal of collateral Appraisal adjustments (53) (53) December 31, 2023 Individually evaluated loans $ 242 Appraisal of collateral Appraisal adjustments (33) – (100)% (94)% Foreclosed assets held for resale 467 Appraisal of collateral Appraisal adjustments (56) (56) _______________________________ 1 Fair value is generally determined through management’s estimate or independent third-party appraisals of the underlying collateral, which generally includes various Level 3 inputs which are not observable. 2 Appraisals may be adjusted downward by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range of liquidation expenses and other appraisal adjustments are presented as a percentage of the appraisal. Higher downward adjustments are caused by negative changes to the collateral or conditions in the real estate market, actual offers or sales contracts received, and/or age of the appraisal. The following information should not be interpreted as an estimate of the fair value of the entire Corporation since a fair value calculation is only provided for a limited portion of the Corporation’s assets and liabilities. Management uses its best judgment in estimating the fair value of the Corporation’s financial instruments; however, there are inherent weaknesses in any estimation technique. Therefore, for substantially all financial instruments, the fair value estimates herein are not necessarily indicative of the amounts the Corporation could have realized in a sales transaction on the dates indicated. The estimated fair value amounts have been measured as of their respective reporting dates and have not been reevaluated or updated for purposes of these Consolidated Financial Statements subsequent to those respective dates. As such, the estimated fair values of these financial instruments subsequent to the respective reporting dates may be different than the amounts reported at each period end. Due to a wide range of valuation techniques and the degree of subjectivity used in making the estimates, comparisons between the Corporation’s disclosures and those of other companies may not be meaningful. The following tables present the carrying amount and the estimated fair value of the Corporation’s financial instruments: September 30, 2024 Carrying Amount Estimated Fair Value (In thousands) Total Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 24,636 $ 24,636 $ 24,636 $ — $ — Interest-bearing deposits with banks 33,456 33,456 33,456 — — Equity securities with readily determinable fair values 947 947 947 — — Investment securities AFS 418,079 418,079 — 418,079 — Investment securities HTM 64,578 59,038 — 59,038 — Loans held for sale 1,080 1,080 — 1,080 — Loans, net 1,659,898 1,641,479 — — 1,641,479 Accrued interest receivable 7,987 7,987 — 7,987 — Restricted investment in bank stocks 10,853 10,853 — 10,853 — Financial liabilities: Demand deposits, savings, and money markets $ 1,534,586 $ 1,333,125 $ — $ 1,333,125 $ — Time deposits 256,731 250,936 — 250,936 — Securities sold under repurchase agreements 37,769 40,649 — 40,649 — FHLB Advances 235,000 240,277 — 240,277 — Trust preferred and subordinated debt 20,322 18,372 — 18,372 — Accrued interest payable 1,531 1,531 — 1,531 — December 31, 2023 Carrying Amount Estimated Fair Value (In thousands) Total Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 21,442 $ 21,442 $ 7,063 $ 14,379 $ — Interest-bearing deposits with banks 44,516 44,516 44,516 — — Equity securities with readily determinable fair values 928 928 928 — — Investment securities AFS 451,693 451,693 — 451,693 — Investment securities HTM 64,600 59,057 — 59,057 — Loans held for sale 280 280 — 280 — Loans, net 1,608,019 1,562,703 — — 1,562,703 Accrued interest receivable 8,080 8,080 — 8,080 — Restricted investment in bank stocks 9,677 9,677 — 9,677 — Financial liabilities: Demand deposits, savings, and money markets $ 1,629,662 $ 1,391,709 $ — $ 1,391,709 $ — Time deposits 232,151 221,770 — 221,770 — Securities sold under repurchase agreements 26,882 23,666 — 23,666 — FHLB Advances 205,000 206,950 — 206,950 — Trust preferred and subordinated debt 20,292 16,992 — 16,992 — Accrued interest payable 794 794 — 794 —

Retirement Benefits

Retirement Benefits	9 Months Ended
	Sep. 30, 2024
Postemployment Benefits [Abstract]
Retirement Benefits	Retirement Benefits The components of net periodic benefit income related to the non-contributory, defined benefit pension plan were as follows: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2024 2023 2024 2023 Service cost $ 107 $ 124 $ 321 $ 372 Interest cost 373 373 1,121 1,119 Expected return on plan assets (712) (663) (2,136) (1,989) Amortization of net loss 20 98 58 294 Net Periodic Benefit Income $ (212) $ (68) $ (636) $ (204) The Corporation has determined that it will not be contributing to the defined benefit plan in 2024 based on current levels and expected returns on plan assets. Effective April 1, 2012, no inactive or former participant in the plan is eligible to again participate in the plan, and no employee hired after March 31, 2012, is eligible to participate in the plan.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2024
Risks and Uncertainties [Abstract]
Commitments and Contingencies Disclosure	Commitments and Contingencies Commitments The Corporation is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments consist primarily of commitments to extend credit (typically mortgages and commercial loans) and, to a lesser extent, standby letters of credit. To varying degrees, these instruments involve elements of credit and interest rate risk in excess of the amount recognized on the Consolidated Statements of Condition. The Corporation’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby letters of credit is represented by the contractual amount of those instruments. The Corporation uses the same credit policies in making commitments and conditional obligations as it does for on balance sheet instruments. The Corporation does not anticipate any material losses from these commitments. Commitments to extend credit, including commitments to grant loans and unfunded commitments under lines of credit, are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Corporation evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Corporation upon extensions of credit, is based on management’s credit evaluation of the customer. Collateral held varies but may include accounts receivable, inventory, property and equipment and income-producing commercial properties. On loans secured by real estate, the Corporation generally requires loan to value ratios of no greater than 80%. Standby letters of credit are conditional commitments issued by the Corporation to guarantee the performance of a customer to a third-party. Those guarantees are primarily issued to support public and private borrowing arrangements and similar transactions. The terms of the letters of credit vary and may have renewal features. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers. The Corporation generally holds collateral and/or personal guarantees supporting those commitments for which collateral is deemed necessary. Management believes that the proceeds obtained through a liquidation of such collateral and the enforcement of guarantees would be sufficient to cover the maximum potential amount of future payments required under the corresponding guarantees. The Corporation maintains a $5.0 million unsecured line of credit with a correspondent bank. The Corporation guarantees a note related to a $1.5 million commercial line of credit with a correspondent bank, with normal terms and conditions for such a line, for ACNB Insurance Services, the borrower. The commercial line of credit is for general working capital needs as they arise by the ACNB Insurance Services. The liability is recorded for the net drawn amount of this line, no further liability is recorded for the remaining line as to the guarantor’s obligation as the guarantor would have full recourse from all assets of its wholly-owned subsidiary. There were no advances on these lines at September 30, 2024 and at December 31, 2023. The Corporation has not been required to perform on any financial guarantees, and has not incurred any losses on its commitments during the past three years. A summary of the Corporation’s commitments were as follows: (In thousands) September 30, 2024 December 31, 2023 Commitments to extend credit $ 363,631 $ 403,300 Standby letters of credit 14,362 21,029 Contingencies The Corporation is subject to claims and lawsuits which arise primarily in the ordinary course of business. Based on information presently available and advice received from legal counsel representing the Corporation in connection with any such claims and lawsuits, it is the opinion of management that the disposition or ultimate determination of any such claims and lawsuits will not have a material adverse effect on the consolidated financial position, consolidated results of operations or liquidity of the Corporation.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
	Sep. 30, 2024
Stockholders' Equity Note [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss The components of accumulated other comprehensive loss, net of taxes, are as follows: (In thousands) Unrealized (Losses) Gains on Securities Pension Accumulated Other Three Months Ended September 30, 2024 Balance at July 1, 2024 $ (42,472) $ (3,927) $ (46,399) Unrealized gain on AFS securities, net of tax 12,334 — 12,334 Amortization of unrealized losses on securities transferred to HTM, net of tax 215 — 215 Amortization of pension net loss, transition liability and prior service cost, net of tax — 15 15 Net current period other comprehensive income 12,549 15 12,564 Balance at September 30, 2024 $ (29,923) $ (3,912) $ (33,835) Nine Months Ended September 30, 2024 Balance at December 31, 2023 $ (40,952) $ (3,957) $ (44,909) Unrealized gain on AFS securities, net of tax 10,331 — 10,331 Realized gains on securities, net of tax 53 — 53 Amortization of unrealized losses on securities transferred to HTM, net of tax 645 — 645 Amortization of pension net loss, transition liability and prior service cost, net of tax — 45 45 Net current period other comprehensive income 11,029 45 11,074 Balance at September 30, 2024 $ (29,923) $ (3,912) $ (33,835) Three Months Ended September 30, 2023 Balance at July 1, 2023 $ (52,946) $ (5,106) $ (58,052) Unrealized loss on AFS securities, net of tax (7,033) — (7,033) Amortization of unrealized losses on securities transferred to HTM, net of tax 244 — 244 Amortization of pension net loss, transition liability and prior service cost, net of tax — 74 74 Net current period other comprehensive (loss) income (6,789) 74 (6,715) Balance at September 30, 2023 $ (59,735) $ (5,032) $ (64,767) Nine Months Ended September 30, 2023 Balance at December 31, 2022 $ (52,734) $ (5,278) $ (58,012) Unrealized loss on AFS securities, net of tax (8,288) — (8,288) Realized gains on securities, net of tax 556 — 556 Amortization of unrealized losses on securities transferred to HTM, net of tax 731 — 731 Amortization of pension net loss, transition liability and prior service cost, net of tax — 246 246 Net current period other comprehensive (loss) income (7,001) 246 (6,755) Balance at September 30, 2023 $ (59,735) $ (5,032) $ (64,767)

Segment Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2024
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting The Corporation has two reporting segments, the Bank and ACNB Insurance Services. ACNB Insurance Services is managed separately from the banking segment, which includes the Bank and related financial services that the Corporation offers through its banking subsidiary. ACNB Insurance Services offers a broad range of property, casualty, health, life and disability insurance to both commercial and individual clients. Segment information as of and for the three month periods ended September 30, 2024 and 2023 is as follows: (In thousands) Banking Insurance Total 2024 Interest income and other income from external customers $ 31,286 $ 2,788 $ 34,074 Interest expense 6,299 — 6,299 Depreciation and amortization expense 548 196 744 Income before income taxes 8,801 609 9,410 Total assets 2,396,726 24,188 2,420,914 Goodwill 35,800 8,385 44,185 Capital expenditures 222 — 222 2023 Interest income and other income from external customers $ 28,080 $ 2,451 $ 30,531 Interest expense 2,489 — 2,489 Depreciation and amortization expense 613 212 825 Income before income taxes 11,107 520 11,627 Total assets 2,369,705 18,817 2,388,522 Goodwill 35,800 8,385 44,185 Capital expenditures 68 — 68 Segment information as of and for the nine month periods ended September 30, 2024 and 2023, is as follows: (In thousands) Banking Insurance Total 2024 Interest income and other income from external customers $ 91,359 $ 7,652 99,011 Interest expense 17,585 — 17,585 Depreciation and amortization expense 1,677 591 2,268 Income before income taxes 30,810 1,375 32,185 Total assets 2,396,726 24,188 2,420,914 Goodwill 35,800 8,385 44,185 Capital expenditures 556 31 587 2023 Interest income and other income from external customers $ 81,638 $ 7,193 $ 88,831 Interest expense 4,529 — 4,529 Depreciation and amortization 1,925 634 2,559 Income before income taxes 33,508 1,595 35,103 Total assets 2,369,705 18,817 2,388,522 Goodwill 35,800 8,385 44,185 Capital expenditures 168 6 174

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Pay vs Performance Disclosure
Net income	$ 7,204	$ 11,279	$ 6,768	$ 9,044	$ 9,524	$ 9,023	$ 25,251	$ 27,591

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Sep. 30, 2024
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

Basis of Presentation and Nat_2

Basis of Presentation and Nature of Operations (Policies)	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The accompanying unaudited Consolidated Financial Statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts of assets and liabilities as of the date of the financial statements as well as revenues and expenses during the period. Actual results could differ from those estimates. In the opinion of management, the accompanying unaudited Consolidated Financial Statements contain all adjustments necessary for a fair presentation. All such adjustments are of a normal recurring nature. These Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and the notes included in the Corporation’s Annual Report on Form 10-K for the year ended December 31, 2023. The Corporation evaluates subsequent events through the filing date of this Form 10-Q with the SEC. The results of operations for the three and nine month periods ended September 30, 2024, are not necessarily indicative of the results to be expected for the full year.
Reclassifications	Certain reclassifications have been made to the prior period financial statements to conform to the current period presentation. Reclassifications had no material effect on prior year net income or stockholders’ equity.
Recently Issued Accounting Standards	In December 2022, the FASB issued ASU 2022-06, “Deferral of the Sunset Date of Reference Rate Reform (Topic 848)” . This ASU extends the sunset date of ASC Topic 848 (Reference Rate Reform) to December 31, 2024, in response to the United Kingdom’s FCA extension of the intended cessation date of LIBOR in the United States. The Corporation evaluated the impact of this standard, and believes that its adoption will not have a material impact on the Corporation’s Consolidated Financial Statements. In November 2023, the FASB issued ASU 2023-07, “Segment Reporting (Topic 280)”. The amendments in this ASU are expected to improve financial reporting by requiring disclosure of incremental segment information on an annual and interim basis for all public entities to enable investors to develop more decision-useful financial analyses. The amendments of ASU 2023-07 are effective for fiscal years beginning after December 15, 2023, and for interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The amendments in ASU 2023-07 should be applied retrospectively to all periods presented on the financial statements. The Corporation adopted the amendments of ASU 2023-07 related to annual disclosure requirements effective January 1, 2024, and will present any newly required annual disclosures in its Annual Report on Form 10-K for the year ending December 31, 2024 and intends to adopt the amendments of ASU 2023-07 related to interim disclosure requirements effective January 1, 2025, and will present any newly required interim disclosures beginning with its Quarterly Report on Form 10-Q for the period ending March 31, 2025. Adoption of this standard is not expected to have a material impact on the Corporation’s Consolidated Financial Statements. In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740)”. This ASU is intended to improve the disclosures for income taxes to address requests from investors, lenders, creditors and other allocators of capital that use the financial statements to make capital allocation decisions. The amendments in ASU 2023-09 will require consistent categories and greater disaggregation of information in the rate reconciliation disclosure as well as disclosure of income taxes paid disaggregated by jurisdiction. The amendments of ASU 2023-09 are effective for annual periods beginning after December 15, 2024, and early adoption is permitted for annual financial statements that have not yet been issued or made available for issuance. The Corporation intends to adopt the amendments of ASU 2023-09 effective January 1, 2025, and will include the required disclosures in its Annual Report on Form 10-K for the year ending December 31, 2025. The Corporation is currently evaluating the impact of this standard, and believes that its adoption will not have a material impact on the Corporation’s Consolidated Financial Statements.
Fair Value Measurements	Fair value is the exchange price that would be received to sell the asset or transfer the liability in an orderly transaction (that is, not a forced liquidation or distressed sale) between market participants at the measurement date under current market conditions. Fair value measurement establishes a fair value hierarchy that prioritizes the inputs to valuation methods used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are as follows: Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. Level 2 - Quoted prices for similar assets or liabilities in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability. Level 3 - Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported with little or no market activity). An asset or liability’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement.

Earnings Per Share and Restri_2

Earnings Per Share and Restricted Stock (Tables)	9 Months Ended
	Sep. 30, 2024
Earnings Per Share [Abstract]
Schedule of Weighted Average Number of Shares	Diluted earnings per share is calculated as net income available to common shareholders divided by the weighted average number of shares outstanding. Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Weighted average shares outstanding (basic) 8,507,140 8,517,917 8,500,860 8,518,006 Dilutive effect of unvested shares 38,438 33,628 31,831 26,726 Weighted average shares outstanding (diluted) 8,545,578 8,551,545 8,532,691 8,544,732 Per share: Basic $ 0.85 $ 1.06 $ 2.97 $ 3.24 Diluted 0.84 1.06 2.96 3.23

Investment Securities (Tables)

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Schedule of amortized cost and fair value of securities	Fair value of equity securities with readily determinable fair values at September 30, 2024 and December 31, 2023, are as follows: (In thousands) Fair Value at Beginning of Period Sales/reclassification Gains (Losses) Losses on Fair Value Nine Months Ended September 30, 2024 CRA Mutual Fund $ 928 $ — $ 19 $ — $ 947 Twelve Months Ended December 31, 2023 CRA Mutual Fund $ 915 $ — $ 13 $ — $ 928 Canapi Ventures SBIC Fund 206 206 — — — Stock in other banks 598 592 5 (11) — $ 1,719 $ 798 $ 18 $ (11) $ 928 Amortized cost and fair value of securities were as follows: (In thousands) Amortized Gross Gross Fair September 30, 2024 Available for Sale U.S. Government and agencies $ 166,194 $ — $ 13,985 $ 152,209 Collateralized mortgage obligations 40,889 — 2,822 38,067 Residential mortgage-backed securities 164,113 43 15,088 149,068 Commercial mortgage-backed securities 65,566 803 3,472 62,897 Corporate bonds 18,102 — 2,264 15,838 $ 454,864 $ 846 $ 37,631 $ 418,079 Held to Maturity State and municipal $ 62,665 $ — $ 5,477 57,188 Residential mortgage-backed securities 1,913 — 63 1,850 $ 64,578 $ — $ 5,540 $ 59,038 December 31, 2023 Available for Sale U.S. Government and agencies $ 176,458 $ — $ 19,663 $ 156,795 Collateralized mortgage obligations 45,189 — 4,105 41,084 Residential mortgage-backed securities 178,441 19 19,630 158,830 Commercial mortgage-backed securities 69,498 344 4,552 65,290 Corporate bonds 32,326 202 2,834 29,694 $ 501,912 $ 565 $ 50,784 $ 451,693 Held to Maturity State and municipal $ 62,133 $ — $ 5,419 $ 56,714 Residential mortgage-backed securities 2,467 — 124 2,343 $ 64,600 $ — $ 5,543 $ 59,057
Schedule of unrealized losses and fair value	The following table shows the Corporation’s investments’ gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at September 30, 2024, and December 31, 2023: Less than 12 Months 12 Months or More Total (In thousands) Fair Unrealized Fair Unrealized Fair Unrealized September 30, 2024 Available for Sale U.S. Government and agencies $ — $ — $ 152,209 $ 13,985 $ 152,209 $ 13,985 Collateralized mortgage obligations — — 38,067 2,822 38,067 2,822 Residential mortgage-backed securities — — 146,297 15,088 146,297 15,088 Commercial mortgage-backed securities — — 30,174 3,472 30,174 3,472 Corporate bonds — — 15,838 2,264 15,838 2,264 $ — $ — $ 382,585 $ 37,631 $ 382,585 $ 37,631 Held to Maturity State and municipal $ — $ — $ 57,188 $ 5,477 $ 57,188 $ 5,477 Residential mortgage-backed securities — — 1,850 63 1,850 63 $ — $ — $ 59,038 $ 5,540 $ 59,038 $ 5,540 December 31, 2023 Available for Sale U.S. Government and agencies $ — $ — $ 156,795 $ 19,663 $ 156,795 $ 19,663 Collateralized mortgage obligations — — 41,085 4,104 41,085 4,104 Residential mortgage-backed securities — — 156,295 19,630 156,295 19,630 Commercial mortgage-backed securities — — 33,063 4,553 33,063 4,553 Corporate bonds — — 15,279 2,834 15,279 2,834 $ — $ — $ 402,517 $ 50,784 $ 402,517 $ 50,784 Held to Maturity State and municipal $ — $ — $ 56,714 $ 5,419 $ 56,714 $ 5,419 Residential mortgage-backed securities — — 2,343 124 2,343 124 $ — $ — $ 59,057 $ 5,543 $ 59,057 $ 5,543
Schedule of amortized cost and fair value by contractual maturity	Amortized cost and fair value at September 30, 2024, by contractual maturity, where applicable, are shown below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay with or without penalties. Securities not due at a single maturity date are shown separately. Available for Sale Held to Maturity (In thousands) Amortized Fair Amortized Fair 1 year or less $ 16,322 $ 16,029 $ — $ — Over 1 year through 5 years 110,053 102,347 4,191 3,824 Over 5 years through 10 years 55,921 48,125 24,314 23,966 Over 10 years 2,000 1,546 34,160 29,398 Mortgage-backed securities 270,568 250,032 1,913 1,850 $ 454,864 $ 418,079 $ 64,578 $ 59,038
Gain (Loss) on Securities	The proceeds from sales and calls of securities and the associated gains and losses are listed below: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2024 2023 2024 2023 Proceeds $ 15,908 $ — $ 46,119 $ 79,215 Gross gains — — 87 243 Gross losses — — 18 982

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	9 Months Ended
	Sep. 30, 2024
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Schedule of the composition of the loan portfolio	The following table presents the composition of the loan portfolio: (In thousands) September 30, 2024 December 31, 2023 Commercial real estate $ 957,904 $ 898,709 Residential mortgage 397,994 394,189 Commercial and industrial 152,148 152,344 Home equity lines of credit 84,316 90,163 Real estate construction 75,953 84,341 Consumer 9,773 9,954 Gross loans 1,678,088 1,629,700 Unearned income (976) (1,712) Total loans, net of unearned income $ 1,677,112 $ 1,627,988
Schedule of classes of loan portfolio summarized by the past due status	The following tables present the classes of the loan portfolio summarized by the past due status: (In thousands) 30–59 Days Past Due 60–89 Days ≥ 90 Days Total Past Current Total Loans Loans September 30, 2024 Commercial real estate $ 318 $ — $ 346 $ 664 $ 957,240 $ 957,904 $ 32 Residential mortgage — 585 375 960 397,034 397,994 375 Commercial and industrial 138 50 175 363 151,785 152,148 19 Home equity lines of credit 454 — — 454 83,862 84,316 — Real estate construction 15 — 12 27 75,926 75,953 12 Consumer 21 — — 21 9,752 9,773 — Gross Loans $ 946 $ 635 $ 908 $ 2,489 $ 1,675,599 $ 1,678,088 $ 438 (In thousands) 30–59 Days Past Due 60–89 Days ≥ 90 Days Total Past Current Total Loans Loans December 31, 2023 Commercial real estate $ 150 $ 347 $ — $ 497 $ 898,212 $ 898,709 $ — Residential mortgage 1,293 388 849 2,530 391,659 394,189 505 Commercial and industrial 50 — 159 209 152,135 152,344 — Home equity lines of credit 414 — 654 1,068 89,095 90,163 654 Real estate construction 12 — — 12 84,329 84,341 — Consumer 8 — 3 11 9,943 9,954 3 Gross Loans $ 1,927 $ 735 $ 1,665 $ 4,327 $ 1,625,373 $ 1,629,700 $ 1,162
Schedule of nonaccrual loans with and without loan reserves	Loans individually evaluated consist of nonaccrual loans, presented in the following table: (In thousands) With a Related Allowance Without a Related Allowance Total September 30, 2024 Commercial real estate $ 314 $ 3,292 $ 3,606 Commercial and industrial 991 1,368 2,359 Home equity lines of credit — 168 168 $ 1,305 $ 4,828 $ 6,133 December 31, 2023 Commercial real estate $ 315 $ 1,164 $ 1,479 Residential mortgage — 343 343 Commercial and industrial 1,004 — 1,004 Home equity lines of credit — 185 185 $ 1,319 $ 1,692 $ 3,011
Schedule of Nonperforming Loans	Total nonperforming loans are as follows: (In thousands) September 30, 2024 December 31, 2023 Nonaccrual loans $ 6,133 $ 3,011 Greater than or equal to 90 days past due and accruing 438 1,162 Total nonperforming loans $ 6,571 $ 4,173
Schedule of financing receivable collateral-dependent	The following table presents the amortized cost basis of individually evaluated loans as of the periods presented: Type of Collateral (In thousands) Business Assets Real Estate September 30, 2024 Commercial real estate $ — $ 3,606 Commercial and industrial 2,359 — Home equity lines of credit — 168 Total $ 2,359 $ 3,774 December 31, 2023 Commercial real estate $ — $ 1,479 Residential mortgage — 343 Commercial and industrial 1,004 — Home equity lines of credit — 185 Total $ 1,004 $ 2,007
Schedule of expected commercial loan modifications	The following table presents the amortized cost basis of loans that were both experiencing financial difficulty and modified during the three and nine months ended September 30, 2024, by class and by type of modification. The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivable is also presented below: (Dollars in thousands) Combination Payment Deferral and Interest Only Payments Percent of Class of Financing Receivable Commercial real estate $ 2,293 0.2 % Commercial and industrial 1,748 1.1 % Total $ 4,041 The following presents the performance of loans modified in the previous twelve months as of September 30, 2024: (In thousands) Current 30-89 Days Past Due ≥ 90 Days Total Past Due Commercial real estate $ 2,293 $ — $ — $ — Commercial and industrial 1,967 — — — Total $ 4,260 $ — $ — $ —
Schedule of loans by year of origination including credit quality indicators	The following summarizes designated internal risk categories by portfolio segment for loans assigned a risk rating and those evaluated based on the performance status: September 30, 2024 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis (In thousands) 2024 2023 2022 2021 2020 Prior Total Internally Risk Rated: Commercial real estate Pass $ 97,426 $ 134,288 $ 164,910 $ 123,922 $ 56,029 $ 318,720 $ 18,020 $ 913,315 Special Mention 488 2,848 4,830 5,878 2,795 15,505 1,797 34,141 Substandard — — 1,781 — 1,496 7,171 — 10,448 Total Commercial real estate $ 97,914 $ 137,136 $ 171,521 $ 129,800 $ 60,320 $ 341,396 $ 19,817 $ 957,904 Residential mortgage Pass $ 18,113 $ 37,415 $ 23,683 $ 38,909 $ 13,743 $ 33,124 $ 419 $ 165,406 Special Mention — 881 270 575 246 3,199 94 5,265 Substandard — — — — — 68 — 68 Total Residential Mortgage $ 18,113 $ 38,296 $ 23,953 $ 39,484 $ 13,989 $ 36,391 $ 513 $ 170,739 Commercial and industrial Pass $ 8,979 $ 11,038 $ 20,545 $ 30,192 $ 13,511 $ 25,644 $ 33,010 $ 142,919 Special Mention 172 153 248 223 82 449 2,703 4,030 Substandard — 536 468 354 16 780 3,045 5,199 Total Commercial and industrial $ 9,151 $ 11,727 $ 21,261 $ 30,769 $ 13,609 $ 26,873 $ 38,758 $ 152,148 Home equity lines of credit Pass $ — $ 296 $ 94 $ — $ — $ 281 $ 5,227 $ 5,898 Special Mention — — — — — — 696 696 Substandard — — — — — 174 — 174 Total Home equity lines of credit $ — $ 296 $ 94 $ — $ — $ 455 $ 5,923 $ 6,768 Real estate construction Pass $ 9,985 $ 29,172 $ 16,397 $ 1,220 $ 306 $ 1,091 $ 8,739 $ 66,910 Special Mention — 118 281 — — 679 46 1,124 Substandard — — — — — 64 — 64 Total Real estate construction $ 9,985 $ 29,290 $ 16,678 $ 1,220 $ 306 $ 1,834 $ 8,785 $ 68,098 Performance Rated: Residential mortgage Performing $ 12,390 $ 40,244 $ 41,284 $ 13,732 $ 14,879 $ 104,279 $ 72 $ 226,880 Nonperforming — — — — — 375 — 375 Total Residential Mortgage $ 12,390 $ 40,244 $ 41,284 $ 13,732 $ 14,879 $ 104,654 $ 72 $ 227,255 Home equity lines of credit Performing $ — $ 19 $ 35 $ — $ 12 $ 2,809 $ 74,673 $ 77,548 Total Home equity lines of credit $ — $ 19 $ 35 $ — $ 12 $ 2,809 $ 74,673 $ 77,548 Real estate construction Performing $ 4,240 $ 1,773 $ 565 $ 165 $ 193 $ 907 $ — $ 7,843 Nonperforming — — — — — 12 — 12 Total Real estate construction $ 4,240 $ 1,773 $ 565 $ 165 $ 193 $ 919 $ — $ 7,855 Consumer Performing $ 1,823 $ 1,710 $ 1,917 $ 552 $ 333 $ 904 $ 2,534 $ 9,773 Total Consumer $ 1,823 $ 1,710 $ 1,917 $ 552 $ 333 $ 904 $ 2,534 $ 9,773 Year-to-date gross charge-offs $ — $ — $ 9 $ — $ — $ 7 $ 147 $ 163 Total Portfolio loans: Pass $ 134,503 $ 212,209 $ 225,629 $ 194,243 $ 83,589 $ 378,860 $ 65,415 $ 1,294,448 Special Mention 660 4,000 5,629 6,676 3,123 19,832 5,336 45,256 Substandard — 536 2,249 354 1,512 8,257 3,045 15,953 Performing 18,453 43,746 43,801 14,449 15,417 108,899 77,279 322,044 Nonperforming — — — — — 387 — 387 Total Portfolio loans $ 153,616 $ 260,491 $ 277,308 $ 215,722 $ 103,641 $ 516,235 $ 151,075 $ 1,678,088 Year-to-date gross charge-offs $ — $ — $ 9 $ — $ — $ 7 $ 147 $ 163 December 31, 2023 Term Loans Amortized Cost Basis by Origination Year Revolving Loans Amortized Cost Basis (In thousands) 2023 2022 2021 2020 2019 Prior Total Internally Risk Rated: Commercial real estate Pass $ 136,158 $ 152,767 $ 130,994 $ 60,918 $ 65,856 $ 287,026 $ 13,636 $ 847,355 Special Mention 1,927 6,385 5,920 1,904 8,222 16,244 1,994 42,596 Substandard — — — 1,530 704 6,524 — 8,758 Total Commercial real estate $ 138,085 $ 159,152 $ 136,914 $ 64,352 $ 74,782 $ 309,794 $ 15,630 $ 898,709 Residential mortgage Pass $ 39,146 $ 27,612 $ 41,031 $ 14,758 $ 10,492 $ 27,274 $ 402 $ 160,715 Special Mention 588 82 593 397 826 2,457 62 5,005 Substandard — — — — — 218 — 218 Total Residential mortgage $ 39,734 $ 27,694 $ 41,624 $ 15,155 $ 11,318 $ 29,949 $ 464 $ 165,938 Commercial and industrial Pass $ 12,319 $ 24,259 $ 34,830 $ 15,614 $ 13,922 $ 17,780 $ 25,147 $ 143,871 Special Mention 128 303 290 529 140 459 2,014 3,863 Substandard 7 135 499 91 9 1,597 2,272 4,610 Total Commercial and industrial $ 12,454 $ 24,697 $ 35,619 $ 16,234 $ 14,071 $ 19,836 $ 29,433 $ 152,344 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 110 $ — $ 110 Home equity lines of credit Pass $ 300 $ 99 $ — $ — $ — $ 131 $ 5,235 $ 5,765 Special Mention — — — — — — 727 727 Substandard — — — — — 362 — 362 Total Home equity lines of credit $ 300 $ 99 $ — $ — $ — $ 493 $ 5,962 $ 6,854 Real estate construction Pass $ 19,766 $ 39,758 $ 3,953 $ 1,160 $ — $ 2,604 $ 8,003 $ 75,244 Special Mention — 465 — 92 — 725 — 1,282 Substandard — — — — — 69 — 69 Total Real estate construction $ 19,766 $ 40,223 $ 3,953 $ 1,252 $ — $ 3,398 $ 8,003 $ 76,595 Performance Rated: Residential mortgage Performing $ 33,884 $ 45,221 $ 14,878 $ 16,184 $ 9,059 $ 108,021 $ 156 $ 227,403 Nonperforming — — — — — 848 — 848 Total Residential mortgage $ 33,884 $ 45,221 $ 14,878 $ 16,184 $ 9,059 $ 108,869 $ 156 $ 228,251 Home equity lines of credit Performing $ 23 $ 38 $ — $ 13 $ 94 $ 4,742 $ 77,745 $ 82,655 Nonperforming — — — — — 92 562 654 Total Home equity lines of credit $ 23 $ 38 $ — $ 13 $ 94 $ 4,834 $ 78,307 $ 83,309 Real estate construction Performing $ 5,571 $ 753 $ 175 $ 210 $ 170 $ 867 $ — $ 7,746 Total Real estate construction $ 5,571 $ 753 $ 175 $ 210 $ 170 $ 867 $ — $ 7,746 Consumer Performing $ 2,351 $ 2,685 $ 778 $ 522 $ 271 $ 1,085 $ 2,259 $ 9,951 Nonperforming — — — — — — 3 3 Total Consumer $ 2,351 $ 2,685 $ 778 $ 522 $ 271 $ 1,085 $ 2,262 $ 9,954 Year-to-date gross charge-offs $ 48 $ 83 $ 42 $ 55 $ 23 $ 78 $ 67 $ 396 Total Portfolio loans Pass $ 207,689 $ 244,495 $ 210,808 $ 92,450 $ 90,270 $ 334,815 $ 52,423 $ 1,232,950 Special Mention 2,643 7,235 6,803 2,922 9,188 19,885 4,797 53,473 Substandard 7 135 499 1,621 713 8,770 2,272 14,017 Performing 41,829 48,697 15,831 16,929 9,594 114,715 80,160 327,755 Nonperforming — — — — — 940 565 1,505 Total Portfolio loans $ 252,168 $ 300,562 $ 233,941 $ 113,922 $ 109,765 $ 479,125 $ 140,217 $ 1,629,700 Year-to-date gross charge-offs $ 48 $ 83 $ 42 $ 55 $ 23 $ 188 $ 67 $ 506
Summary of allowance activity for loan losses and recorded investment in loans receivable	The following table presents the activity in the ACL by loan portfolio segment: (In thousands) Commercial Residential Commercial Home Equity Real Estate Consumer Unallocated Total Three Months Ended September 30, 2024 Beginning balance - July 1, 2024 $ 10,196 $ 2,839 $ 1,465 $ 312 $ 2,247 $ 103 $ — $ 17,162 Charge-offs — — — — — (51) — (51) Recoveries — — 6 — — 16 — 22 Provisions (credits) 196 31 301 (16) (467) 36 — 81 Ending balance - September 30, 2024 $ 10,392 $ 2,870 $ 1,772 $ 296 $ 1,780 $ 104 $ — $ 17,214 Nine Months Ended September 30, 2024 Beginning balance - January 1, 2024 $ 12,010 $ 3,303 $ 2,048 $ 397 $ 2,070 $ 141 $ — $ 19,969 Charge-offs — — — — — (163) — (163) Recoveries — — 24 — — 70 — 94 Provisions (credits) (1,618) (433) (300) (101) (290) 56 — (2,686) Ending balance - September 30, 2024 $ 10,392 $ 2,870 $ 1,772 $ 296 $ 1,780 $ 104 $ — $ 17,214 Three Months Ended September 30, 2023 Beginning balance - July 1, 2023 $ 11,728 $ 3,075 $ 1,941 $ 388 $ 1,885 $ 131 $ — $ 19,148 Charge-offs — — (81) — — (109) — (190) Recoveries — — 32 — — 24 — 56 Provisions 170 78 (381) 5 279 99 — 250 Ending balance - September 30, 2023 $ 11,898 $ 3,153 $ 1,511 $ 393 $ 2,164 $ 145 $ — $ 19,264 Nine Months Ended September 30, 2023 Beginning balance - January 1, 2023 $ 10,016 $ 3,029 $ 2,848 $ 347 $ 1,000 $ 376 $ 245 $ 17,861 Impact of CECL adoption 1,106 297 (762) 17 1,347 (142) (245) 1,618 Charge-offs — — (110) — — (279) — (389) Recoveries — — 42 — — 58 — 100 Provisions 776 (173) (507) 29 (183) 132 — 74 Ending balance - September 30, 2023 $ 11,898 $ 3,153 $ 1,511 $ 393 $ 2,164 $ 145 $ — $ 19,264

Deposits (Tables)

Deposits (Tables)	9 Months Ended
	Sep. 30, 2024
Deposits [Abstract]
Deposit Liabilities, Type	Deposits were comprised of the following for the periods presented: (In thousands) September 30, 2024 December 31, 2023 Noninterest-bearing demand deposits $ 463,501 $ 500,332 Interest-bearing demand deposits 509,930 524,289 Money market 249,197 264,907 Savings 311,958 340,134 Total demand and savings 1,534,586 1,629,662 Time 256,731 232,151 Total deposits $ 1,791,317 $ 1,861,813
Time Deposit Maturities	Scheduled maturities of time deposits at September 30, 2024 are as follows: Time Deposits (In thousands) Less than $250,000 $250,000 or more Less than 1 year $ 183,010 $ 44,229 1 - 2 years 16,136 783 2 - 3 years 7,589 — 3 - 4 years 2,764 — 4 - 5 years 2,130 — Thereafter 90 — Total time deposits $ 211,719 $ 45,012

Borrowings (Tables)

Borrowings (Tables)	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Schedule of short-term debt outstanding	Short-term borrowings were comprised of the following for the periods presented: (In thousands) September 30, 2024 December 31, 2023 Securities sold under repurchase agreements $ 37,769 $ 26,882 FHLB advance — 30,000 $ 37,769 $ 56,882
Schedule of long-term debt outstanding	Long-term borrowings were comprised of the following for the periods presented: (In thousands) September 30, 2024 December 31, 2023 FHLB fixed-rate advances maturing: 2026 $ 80,000 $ 80,000 2027 90,000 60,000 2028 35,000 35,000 2029 30,000 — Trust preferred subordinated debt 1 5,322 5,292 Subordinated debt 15,000 15,000 $ 255,322 $ 195,292 ___________________________ 1 Net of purchase accounting fair value mark

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Schedule of fair value measurements by level within the fair value hierarchy and the basis of measurement used	The following tables present assets measured at fair value and the basis of measurement used at the periods presented: September 30, 2024 (In thousands) Basis Level 1 Level 2 Level 3 Total Equity securities with readily determinable fair values Recurring $ 947 $ — $ — $ 947 AFS Investment Securities: U.S. Government and agencies — 152,209 — 152,209 Collateralized mortgage obligations — 38,067 — 38,067 Residential mortgage-backed securities — 149,068 — 149,068 Commercial mortgage-backed securities — 62,897 — 62,897 Corporate bonds — 15,838 — 15,838 Total AFS Investment Securities Recurring $ — $ 418,079 $ — $ 418,079 Loans held for sale Recurring — 1,080 — 1,080 Individually evaluated loans Non-recurring — — 262 262 Foreclosed assets held for resale Non-recurring — — 406 406 December 31, 2023 (In thousands) Basis Level 1 Level 2 Level 3 Total Equity securities with readily determinable fair values Recurring $ 928 $ — $ — $ 928 AFS Investment Securities: U.S. Government and agencies — 156,795 — 156,795 Collateralized mortgage obligations — 41,084 — 41,084 Residential mortgage-backed securities — 158,830 — 158,830 Commercial mortgage-backed securities — 65,290 — 65,290 Corporate bonds — 29,694 — 29,694 Total AFS Investment Securities Recurring $ — $ 451,693 $ — $ 451,693 Loans held for sale Recurring — 280 — 280 Individually evaluated loans Non-recurring — — 242 242 Foreclosed assets held for resale Non-recurring — — 467 467
Schedule of additional quantitative information about assets measured at fair value on a nonrecurring basis	The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis for which the Corporation has utilized Level 3 inputs to determine fair value: (Dollars in thousands) Fair Value Estimate Valuation Technique 1 Unobservable Input 2 Range Weighted Average September 30, 2024 Individually evaluated loans $ 262 Appraisal of collateral Appraisal adjustments (17) – (100)% (81)% Foreclosed assets held for resale 406 Appraisal of collateral Appraisal adjustments (53) (53) December 31, 2023 Individually evaluated loans $ 242 Appraisal of collateral Appraisal adjustments (33) – (100)% (94)% Foreclosed assets held for resale 467 Appraisal of collateral Appraisal adjustments (56) (56) _______________________________ 1 Fair value is generally determined through management’s estimate or independent third-party appraisals of the underlying collateral, which generally includes various Level 3 inputs which are not observable. 2 Appraisals may be adjusted downward by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range of liquidation expenses and other appraisal adjustments are presented as a percentage of the appraisal. Higher downward adjustments are caused by negative changes to the collateral or conditions in the real estate market, actual offers or sales contracts received, and/or age of the appraisal.
Schedule of carrying amount, exit pricing concept fair value and placement in the fair value hierarchy	The following tables present the carrying amount and the estimated fair value of the Corporation’s financial instruments: September 30, 2024 Carrying Amount Estimated Fair Value (In thousands) Total Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 24,636 $ 24,636 $ 24,636 $ — $ — Interest-bearing deposits with banks 33,456 33,456 33,456 — — Equity securities with readily determinable fair values 947 947 947 — — Investment securities AFS 418,079 418,079 — 418,079 — Investment securities HTM 64,578 59,038 — 59,038 — Loans held for sale 1,080 1,080 — 1,080 — Loans, net 1,659,898 1,641,479 — — 1,641,479 Accrued interest receivable 7,987 7,987 — 7,987 — Restricted investment in bank stocks 10,853 10,853 — 10,853 — Financial liabilities: Demand deposits, savings, and money markets $ 1,534,586 $ 1,333,125 $ — $ 1,333,125 $ — Time deposits 256,731 250,936 — 250,936 — Securities sold under repurchase agreements 37,769 40,649 — 40,649 — FHLB Advances 235,000 240,277 — 240,277 — Trust preferred and subordinated debt 20,322 18,372 — 18,372 — Accrued interest payable 1,531 1,531 — 1,531 — December 31, 2023 Carrying Amount Estimated Fair Value (In thousands) Total Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 21,442 $ 21,442 $ 7,063 $ 14,379 $ — Interest-bearing deposits with banks 44,516 44,516 44,516 — — Equity securities with readily determinable fair values 928 928 928 — — Investment securities AFS 451,693 451,693 — 451,693 — Investment securities HTM 64,600 59,057 — 59,057 — Loans held for sale 280 280 — 280 — Loans, net 1,608,019 1,562,703 — — 1,562,703 Accrued interest receivable 8,080 8,080 — 8,080 — Restricted investment in bank stocks 9,677 9,677 — 9,677 — Financial liabilities: Demand deposits, savings, and money markets $ 1,629,662 $ 1,391,709 $ — $ 1,391,709 $ — Time deposits 232,151 221,770 — 221,770 — Securities sold under repurchase agreements 26,882 23,666 — 23,666 — FHLB Advances 205,000 206,950 — 206,950 — Trust preferred and subordinated debt 20,292 16,992 — 16,992 — Accrued interest payable 794 794 — 794 —

Retirement Benefits (Tables)

Retirement Benefits (Tables)	9 Months Ended
	Sep. 30, 2024
Postemployment Benefits [Abstract]
Schedule of net periodic benefit expense (income)	The components of net periodic benefit income related to the non-contributory, defined benefit pension plan were as follows: Three Months Ended September 30, Nine Months Ended September 30, (In thousands) 2024 2023 2024 2023 Service cost $ 107 $ 124 $ 321 $ 372 Interest cost 373 373 1,121 1,119 Expected return on plan assets (712) (663) (2,136) (1,989) Amortization of net loss 20 98 58 294 Net Periodic Benefit Income $ (212) $ (68) $ (636) $ (204)

Commitment and Contingencies (T

Commitment and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2024
Risks and Uncertainties [Abstract]
Schedule of Fair Value, off-Balance-Sheet Risks	A summary of the Corporation’s commitments were as follows: (In thousands) September 30, 2024 December 31, 2023 Commitments to extend credit $ 363,631 $ 403,300 Standby letters of credit 14,362 21,029

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Sep. 30, 2024
Stockholders' Equity Note [Abstract]
Schedule of accumulated other comprehensive loss	The components of accumulated other comprehensive loss, net of taxes, are as follows: (In thousands) Unrealized (Losses) Gains on Securities Pension Accumulated Other Three Months Ended September 30, 2024 Balance at July 1, 2024 $ (42,472) $ (3,927) $ (46,399) Unrealized gain on AFS securities, net of tax 12,334 — 12,334 Amortization of unrealized losses on securities transferred to HTM, net of tax 215 — 215 Amortization of pension net loss, transition liability and prior service cost, net of tax — 15 15 Net current period other comprehensive income 12,549 15 12,564 Balance at September 30, 2024 $ (29,923) $ (3,912) $ (33,835) Nine Months Ended September 30, 2024 Balance at December 31, 2023 $ (40,952) $ (3,957) $ (44,909) Unrealized gain on AFS securities, net of tax 10,331 — 10,331 Realized gains on securities, net of tax 53 — 53 Amortization of unrealized losses on securities transferred to HTM, net of tax 645 — 645 Amortization of pension net loss, transition liability and prior service cost, net of tax — 45 45 Net current period other comprehensive income 11,029 45 11,074 Balance at September 30, 2024 $ (29,923) $ (3,912) $ (33,835) Three Months Ended September 30, 2023 Balance at July 1, 2023 $ (52,946) $ (5,106) $ (58,052) Unrealized loss on AFS securities, net of tax (7,033) — (7,033) Amortization of unrealized losses on securities transferred to HTM, net of tax 244 — 244 Amortization of pension net loss, transition liability and prior service cost, net of tax — 74 74 Net current period other comprehensive (loss) income (6,789) 74 (6,715) Balance at September 30, 2023 $ (59,735) $ (5,032) $ (64,767) Nine Months Ended September 30, 2023 Balance at December 31, 2022 $ (52,734) $ (5,278) $ (58,012) Unrealized loss on AFS securities, net of tax (8,288) — (8,288) Realized gains on securities, net of tax 556 — 556 Amortization of unrealized losses on securities transferred to HTM, net of tax 731 — 731 Amortization of pension net loss, transition liability and prior service cost, net of tax — 246 246 Net current period other comprehensive (loss) income (7,001) 246 (6,755) Balance at September 30, 2023 $ (59,735) $ (5,032) $ (64,767)

Segment Reporting (Tables)

Segment Reporting (Tables)	9 Months Ended
	Sep. 30, 2024
Segment Reporting [Abstract]
Schedule of Segment Information	Segment information as of and for the three month periods ended September 30, 2024 and 2023 is as follows: (In thousands) Banking Insurance Total 2024 Interest income and other income from external customers $ 31,286 $ 2,788 $ 34,074 Interest expense 6,299 — 6,299 Depreciation and amortization expense 548 196 744 Income before income taxes 8,801 609 9,410 Total assets 2,396,726 24,188 2,420,914 Goodwill 35,800 8,385 44,185 Capital expenditures 222 — 222 2023 Interest income and other income from external customers $ 28,080 $ 2,451 $ 30,531 Interest expense 2,489 — 2,489 Depreciation and amortization expense 613 212 825 Income before income taxes 11,107 520 11,627 Total assets 2,369,705 18,817 2,388,522 Goodwill 35,800 8,385 44,185 Capital expenditures 68 — 68 Segment information as of and for the nine month periods ended September 30, 2024 and 2023, is as follows: (In thousands) Banking Insurance Total 2024 Interest income and other income from external customers $ 91,359 $ 7,652 99,011 Interest expense 17,585 — 17,585 Depreciation and amortization expense 1,677 591 2,268 Income before income taxes 30,810 1,375 32,185 Total assets 2,396,726 24,188 2,420,914 Goodwill 35,800 8,385 44,185 Capital expenditures 556 31 587 2023 Interest income and other income from external customers $ 81,638 $ 7,193 $ 88,831 Interest expense 4,529 — 4,529 Depreciation and amortization 1,925 634 2,559 Income before income taxes 33,508 1,595 35,103 Total assets 2,369,705 18,817 2,388,522 Goodwill 35,800 8,385 44,185 Capital expenditures 168 6 174

Basis of Presentation and Nat_3

Basis of Presentation and Nature of Operations (Details) $ / shares in Units, $ in Thousands		9 Months Ended
	Jul. 19, 2024 USD ($) $ / shares shares	Sep. 30, 2024 USD ($) bank branch shares	Dec. 31, 2023 USD ($) shares	Sep. 30, 2023 USD ($)
Business Acquisition [Line Items]
Number of community banking office locations, ACNB | bank		27
Common stock, shares outstanding (in shares) | shares		8,548,625	8,511,453
Total assets		$ 2,420,914	$ 2,418,847	$ 2,388,522
Loans		1,678,088	1,629,700
Total deposits		$ 1,791,317	$ 1,861,813
Traditions Bancorp, Inc.
Business Acquisition [Line Items]
Common stock, shares outstanding (in shares) | shares		2,754,062	2,736,544
Total assets		$ 860,000	$ 840,100
Loans		683,200	668,800
Total deposits		$ 740,000	$ 731,100
Full-service branches | branch		8
Traditions Bancorp, Inc.
Business Acquisition [Line Items]
Number of shares issued per shareholder (in shares) | shares	0.7300
Value of transaction	$ 73,500
Value of transaction (in dollars per share) | $ / shares	$ 26.43
Adams, Cumberland, Franklin, Lancaster and York Counties, Pennsylvania
Business Acquisition [Line Items]
Number of community banking office locations, ACNB | bank		18
Carroll and Frederick Counties, Maryland
Business Acquisition [Line Items]
Number of community banking office locations, ACNB | bank		9

Earnings Per Share and Restri_3

Earnings Per Share and Restricted Stock (Details) $ / shares in Units, $ in Thousands		3 Months Ended				9 Months Ended		23 Months Ended
	Feb. 24, 2019	Sep. 30, 2024 USD ($) $ / shares shares	Mar. 31, 2024 shares	Sep. 30, 2023 USD ($) $ / shares shares	Mar. 31, 2023 shares	Sep. 30, 2024 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2024 shares	Oct. 18, 2022 shares	Mar. 08, 2019 shares	Mar. 20, 2018 shares
Earnings Per Share [Abstract]
Weighted average shares of common stock outstanding, basic (in shares)		8,507,140		8,517,917		8,500,860	8,518,006
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average shares of common stock outstanding, basic (in shares)		8,507,140		8,517,917		8,500,860	8,518,006
Dilutive effect of unvested shares (in shares)		38,438		33,628		31,831	26,726
Weighted average shares of common stock outstanding, diluted (in shares)		8,545,578		8,551,545		8,532,691	8,544,732
Basic earnings (in dollars per share) | $ / shares		$ 0.85		$ 1.06		$ 2.97	$ 3.24
Diluted earnings (in dollars per share) | $ / shares		$ 0.84		$ 1.06		$ 2.96	$ 3.23
2009 Restricted Stock Plan, Number of shares authorized, but not issued (in shares)										174,055
Common stock shares repurchased (in shares)		2,642	4,200	46,378	850
ACNB Corporation 2009 Restricted Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
2009 Restricted Stock Plan, expiration period	10 years
ACNB Corporation 2018 Omnibus Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares of common stock under new stock incentive plan (in shares)											400,000
ACNB Corporation 2018 Omnibus Stock Incentive Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested number of shares (in shares)		38,438				38,438		38,438
Shares issued under plan (in shares)		138,019				138,019		138,019
Compensation expense | $		$ 244		$ 265		$ 1,000	$ 1,000
Stock Repurchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased									255,575
Stock Repurchase Program, Number of Shares Authorized to be Repurchased, Percentage of Outstanding Shares									0.03
Common stock shares repurchased (in shares)		2,642				6,842		67,908

Investment Securities - Schedul

Investment Securities - Schedule of Required Fair Value Disclosures for Equity Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair value at beginning of period			$ 928	$ 1,719	$ 1,719
Sales/reclassification					798
Gains (Losses)	$ 28	$ (27)	19	(22)	18
Losses on sales of securities					(11)
Fair value at end of period	947		947		928
CRA Mutual Fund
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair value at beginning of period			928	915	915
Sales/reclassification			0		0
Gains (Losses)					13
Losses on sales of securities			0		0
Fair value at end of period	$ 947		947		928
Canapi Ventures SBIC Fund
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair value at beginning of period			0	206	206
Sales/reclassification					206
Gains (Losses)					0
Losses on sales of securities					0
Fair value at end of period					0
Stock In Other Banks
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair value at beginning of period			$ 0	$ 598	598
Sales/reclassification					592
Gains (Losses)					5
Losses on sales of securities					(11)
Fair value at end of period					$ 0

Investment Securities - Sched_2

Investment Securities - Schedule of Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Available-for-sale, Amortized Cost	$ 454,864	$ 501,912
Gross Unrealized Gains	846	565
Gross Unrealized Losses	37,631	50,784
Investment securities available for sale, at estimated fair value	418,079	451,693
Held to Maturity
Held to Maturity, Amortized Cost	64,578	64,600
Gross Unrealized Gains	0	0
Gross Unrealized Losses	5,540	5,543
Fair Value	59,038	59,057
U.S. Government and agencies
Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Available-for-sale, Amortized Cost	166,194	176,458
Gross Unrealized Gains	0	0
Gross Unrealized Losses	13,985	19,663
Investment securities available for sale, at estimated fair value	152,209	156,795
Collateralized mortgage obligations
Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Available-for-sale, Amortized Cost	40,889	45,189
Gross Unrealized Gains	0	0
Gross Unrealized Losses	2,822	4,105
Investment securities available for sale, at estimated fair value	38,067	41,084
Residential mortgage-backed securities
Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Available-for-sale, Amortized Cost	164,113	178,441
Gross Unrealized Gains	43	19
Gross Unrealized Losses	15,088	19,630
Investment securities available for sale, at estimated fair value	149,068	158,830
Held to Maturity
Held to Maturity, Amortized Cost	1,913	2,467
Gross Unrealized Gains	0	0
Gross Unrealized Losses	63	124
Fair Value	1,850	2,343
Commercial mortgage-backed securities
Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Available-for-sale, Amortized Cost	65,566	69,498
Gross Unrealized Gains	803	344
Gross Unrealized Losses	3,472	4,552
Investment securities available for sale, at estimated fair value	62,897	65,290
Corporate bonds
Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract]
Available-for-sale, Amortized Cost	18,102	32,326
Gross Unrealized Gains	0	202
Gross Unrealized Losses	2,264	2,834
Investment securities available for sale, at estimated fair value	15,838	29,694
State and municipal
Held to Maturity
Held to Maturity, Amortized Cost	62,665	62,133
Gross Unrealized Gains	0	0
Gross Unrealized Losses	5,477	5,419
Fair Value	$ 57,188	$ 56,714

Investment Securities - Sched_3

Investment Securities - Schedule of Unrealized Losses and Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Available for Sale
Fair Value, Less than 12 Months	$ 0	$ 0
Unrealized Losses, Less than 12 Months	0	0
Fair Value, 12 Months or More	382,585	402,517
Unrealized Losses, 12 Months or More	37,631	50,784
Total Fair Value	382,585	402,517
Total Unrealized Losses	37,631	50,784
Held to Maturity
Fair Value, Less than 12 Months	0	0
Unrealized Losses, Less than 12 Months	0	0
Fair Value, 12 Months or More	59,038	59,057
Unrealized Losses, 12 Months or More	5,540	5,543
Total Fair Value	59,038	59,057
Total Unrealized Losses	5,540	5,543
U.S. Government and agencies
Available for Sale
Fair Value, Less than 12 Months	0	0
Unrealized Losses, Less than 12 Months	0	0
Fair Value, 12 Months or More	152,209	156,795
Unrealized Losses, 12 Months or More	13,985	19,663
Total Fair Value	152,209	156,795
Total Unrealized Losses	13,985	19,663
Collateralized mortgage obligations
Available for Sale
Fair Value, Less than 12 Months	0	0
Unrealized Losses, Less than 12 Months	0	0
Fair Value, 12 Months or More	38,067	41,085
Unrealized Losses, 12 Months or More	2,822	4,104
Total Fair Value	38,067	41,085
Total Unrealized Losses	2,822	4,104
Residential mortgage-backed securities
Available for Sale
Fair Value, Less than 12 Months	0	0
Unrealized Losses, Less than 12 Months	0	0
Fair Value, 12 Months or More	146,297	156,295
Unrealized Losses, 12 Months or More	15,088	19,630
Total Fair Value	146,297	156,295
Total Unrealized Losses	15,088	19,630
Held to Maturity
Fair Value, Less than 12 Months	0	0
Unrealized Losses, Less than 12 Months	0	0
Fair Value, 12 Months or More	1,850	2,343
Unrealized Losses, 12 Months or More	63	124
Total Fair Value	1,850	2,343
Total Unrealized Losses	63	124
Commercial mortgage-backed securities
Available for Sale
Fair Value, Less than 12 Months	0	0
Unrealized Losses, Less than 12 Months	0	0
Fair Value, 12 Months or More	30,174	33,063
Unrealized Losses, 12 Months or More	3,472	4,553
Total Fair Value	30,174	33,063
Total Unrealized Losses	3,472	4,553
Corporate bonds
Available for Sale
Fair Value, Less than 12 Months	0	0
Unrealized Losses, Less than 12 Months	0	0
Fair Value, 12 Months or More	15,838	15,279
Unrealized Losses, 12 Months or More	2,264	2,834
Total Fair Value	15,838	15,279
Total Unrealized Losses	2,264	2,834
State and municipal
Held to Maturity
Fair Value, Less than 12 Months	0	0
Unrealized Losses, Less than 12 Months	0	0
Fair Value, 12 Months or More	57,188	56,714
Unrealized Losses, 12 Months or More	5,477	5,419
Total Fair Value	57,188	56,714
Total Unrealized Losses	$ 5,477	$ 5,419

Investment Securities - Narrati

Investment Securities - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Carrying value of securities pledged as collateral as required by law on public and trust deposits, repurchase agreements, and for other purposes	$ 204.4	$ 233.7

Investment Securities - Sched_4

Investment Securities - Schedule of Amortized Cost and Fair Value by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Available for Sale Amortized Cost
1 year or less	$ 16,322
Over 1 year through 5 years	110,053
Over 5 years through 10 years	55,921
Over 10 years	2,000
Mortgage-backed securities	270,568
Available-for-sale, Amortized Cost	454,864	$ 501,912
Available for Sale Fair Value
1 year or less	16,029
Over 1 year through 5 years	102,347
Over 5 years through 10 years	48,125
Over 10 years	1,546
Mortgage-backed securities	250,032
Available for Sale, Fair Value	418,079	451,693
Held-to-Maturity Amortized Cost
1 year or less	0
Over 1 year through 5 years	4,191
Over 5 years through 10 years	24,314
Over 10 years	34,160
Mortgage-backed securities	1,913
Held to Maturity, Amortized Cost	64,578	64,600
Held-to-Maturity Fair Value
1 year or less	0
Over 1 year through 5 years	3,824
Over 5 years through 10 years	23,966
Over 10 years	29,398
Mortgage-backed securities	1,850
Held to Maturity, Fair Value	$ 59,038	$ 59,057

Investment Securities - Gain (L

Investment Securities - Gain (Loss) on Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Proceeds	$ 15,908	$ 0	$ 46,119	$ 79,215
Gross gains	0	0	87	243
Gross losses	$ 0	$ 0	$ 18	$ 982

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses - Schedule of the Composition of the Loan Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 1,678,088	$ 1,629,700
Financing Receivable, Unearned Income, before Allowance for Credit Loss	(976)	(1,712)
Total loans, net of unearned income	1,677,112	1,627,988
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	957,904	898,709
Residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	397,994	394,189
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	152,148	152,344
Home equity lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	84,316	90,163
Real estate construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	75,953	84,341
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans	$ 9,773	$ 9,954

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses - Schedule of Loan Portfolio Summarized by the Past Due Status (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans	$ 1,678,088	$ 1,629,700
Financing Receivable, 90 Days or More Past Due, Accruing	438	1,162
30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	946	1,927
60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	635	735
≥ 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	908	1,665
Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,489	4,327
Current
Financing Receivable, Past Due [Line Items]
Loans	1,675,599	1,625,373
Commercial real estate
Financing Receivable, Past Due [Line Items]
Loans	957,904	898,709
Financing Receivable, 90 Days or More Past Due, Accruing	32	0
Commercial real estate | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	318	150
Commercial real estate | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	347
Commercial real estate | ≥ 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	346	0
Commercial real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	664	497
Commercial real estate | Current
Financing Receivable, Past Due [Line Items]
Loans	957,240	898,212
Residential mortgage
Financing Receivable, Past Due [Line Items]
Loans	397,994	394,189
Financing Receivable, 90 Days or More Past Due, Accruing	375	505
Residential mortgage | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	1,293
Residential mortgage | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	585	388
Residential mortgage | ≥ 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	375	849
Residential mortgage | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	960	2,530
Residential mortgage | Current
Financing Receivable, Past Due [Line Items]
Loans	397,034	391,659
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans	152,148	152,344
Financing Receivable, 90 Days or More Past Due, Accruing	19	0
Commercial and industrial | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	138	50
Commercial and industrial | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	50	0
Commercial and industrial | ≥ 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	175	159
Commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	363	209
Commercial and industrial | Current
Financing Receivable, Past Due [Line Items]
Loans	151,785	152,135
Home equity lines of credit
Financing Receivable, Past Due [Line Items]
Loans	84,316	90,163
Financing Receivable, 90 Days or More Past Due, Accruing	0	654
Home equity lines of credit | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	454	414
Home equity lines of credit | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Home equity lines of credit | ≥ 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	654
Home equity lines of credit | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	454	1,068
Home equity lines of credit | Current
Financing Receivable, Past Due [Line Items]
Loans	83,862	89,095
Real estate construction
Financing Receivable, Past Due [Line Items]
Loans	75,953	84,341
Financing Receivable, 90 Days or More Past Due, Accruing	12	0
Real estate construction | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	15	12
Real estate construction | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Real estate construction | ≥ 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	12	0
Real estate construction | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	27	12
Real estate construction | Current
Financing Receivable, Past Due [Line Items]
Loans	75,926	84,329
Consumer
Financing Receivable, Past Due [Line Items]
Loans	9,773	9,954
Financing Receivable, 90 Days or More Past Due, Accruing	0	3
Consumer | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	21	8
Consumer | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Consumer | ≥ 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	3
Consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	21	11
Consumer | Current
Financing Receivable, Past Due [Line Items]
Loans	$ 9,752	$ 9,943

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses - Schedule of Nonaccrual Loans by Classes of the Loan Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	$ 6,133	$ 3,011
With a Related Allowance	1,305	1,319
Without a Related Allowance	4,828	1,692
Financing Receivable, 90 Days or More Past Due, Accruing	438	1,162
Financing Receivable, Nonperforming Loans	6,571	4,173
Commercial real estate
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	3,606	1,479
With a Related Allowance	314	315
Without a Related Allowance	3,292	1,164
Financing Receivable, 90 Days or More Past Due, Accruing	32	0
Residential mortgage
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans		343
With a Related Allowance		0
Without a Related Allowance		343
Financing Receivable, 90 Days or More Past Due, Accruing	375	505
Commercial and industrial
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	2,359	1,004
With a Related Allowance	991	1,004
Without a Related Allowance	1,368	0
Financing Receivable, 90 Days or More Past Due, Accruing	19	0
Home equity lines of credit
Financing Receivable, Nonaccrual [Line Items]
Total nonaccrual loans	168	185
With a Related Allowance	0	0
Without a Related Allowance	168	185
Financing Receivable, 90 Days or More Past Due, Accruing	$ 0	$ 654

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Financing Receivable [Line Items]
Consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process	$ 515		$ 515		$ 1,300
Provision for (reversal of) credit losses	81	$ 250	(2,686)	$ 74
Provision for (reversal of) unfunded commitments	$ 40	(171)	$ (370)	226
Default period	12 months		12 months
Past due period	90 days		90 days
Commercial real estate
Financing Receivable [Line Items]
Provision for (reversal of) credit losses	$ 196	170	$ (1,618)	776
Home equity lines of credit
Financing Receivable [Line Items]
Provision for (reversal of) credit losses	(16)	5	(101)	29
Consumer
Financing Receivable [Line Items]
Provision for (reversal of) credit losses	$ 36	$ 99	$ 56	$ 132

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses - Summary of Amortized Cost Basis of Individually Evaluated Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 2,359	$ 1,004
Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	3,774	2,007
Commercial real estate | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	0	0
Commercial real estate | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	3,606	1,479
Residential mortgage | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment		0
Residential mortgage | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment		343
Commercial and industrial | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	2,359	1,004
Commercial and industrial | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	0	0
Home equity lines of credit | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	0	0
Home equity lines of credit | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Individually Evaluated for Impairment	$ 168	$ 185

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses - Modifications (Details) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)
Financing Receivable, Modified [Line Items]
Loans modified			0
Current
Financing Receivable, Modified [Line Items]
Loans modified			4,260
30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified			0
≥ 90 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified			0
Combination Payment Deferral and Interest Only Payments
Financing Receivable, Modified [Line Items]
Amortized cost	$ 4,041	$ 4,041
Commercial real estate
Financing Receivable, Modified [Line Items]
Loans modified			0
Commercial real estate | Current
Financing Receivable, Modified [Line Items]
Loans modified			2,293
Commercial real estate | 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified			0
Commercial real estate | ≥ 90 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified			0
Commercial real estate | Combination Payment Deferral and Interest Only Payments
Financing Receivable, Modified [Line Items]
Amortized cost	$ 2,293	$ 2,293
Percent of Class of Financing Receivable	0.20%	0.20%
Commercial and industrial
Financing Receivable, Modified [Line Items]
Loans modified			0
Commercial and industrial | Current
Financing Receivable, Modified [Line Items]
Loans modified			1,967
Commercial and industrial | 30-89 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified			0
Commercial and industrial | ≥ 90 Days Past Due
Financing Receivable, Modified [Line Items]
Loans modified			0
Commercial and industrial | Combination Payment Deferral and Interest Only Payments
Financing Receivable, Modified [Line Items]
Amortized cost	$ 1,748	$ 1,748
Percent of Class of Financing Receivable	1.10%	1.10%

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses - Schedule of Classes of the Loan Portfolio Summarized by the Aggregate Risk Rating and Performance Status (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 153,616		$ 153,616		$ 252,168
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	260,491		260,491		300,562
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	277,308		277,308		233,941
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	215,722		215,722		113,922
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	103,641		103,641		109,765
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	516,235		516,235		479,125
Financing Receivable, Revolving	151,075		151,075		140,217
Loans	1,678,088		1,678,088		1,629,700
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff			0		48
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff			0		83
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff			9		42
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff			0		55
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff			0		23
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff			7		188
Financing Receivable, Revolving, Writeoff			147		67
Financing Receivable, Allowance for Credit Loss, Writeoff	51	$ 190	163	$ 389	506
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	134,503		134,503		207,689
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	212,209		212,209		244,495
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	225,629		225,629		210,808
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	194,243		194,243		92,450
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	83,589		83,589		90,270
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	378,860		378,860		334,815
Financing Receivable, Revolving	65,415		65,415		52,423
Loans	1,294,448		1,294,448		1,232,950
Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	660		660		2,643
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,000		4,000		7,235
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	5,629		5,629		6,803
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	6,676		6,676		2,922
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	3,123		3,123		9,188
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	19,832		19,832		19,885
Financing Receivable, Revolving	5,336		5,336		4,797
Loans	45,256		45,256		53,473
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		7
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	536		536		135
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,249		2,249		499
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	354		354		1,621
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,512		1,512		713
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	8,257		8,257		8,770
Financing Receivable, Revolving	3,045		3,045		2,272
Loans	15,953		15,953		14,017
Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	18,453		18,453		41,829
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	43,746		43,746		48,697
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	43,801		43,801		15,831
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	14,449		14,449		16,929
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	15,417		15,417		9,594
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	108,899		108,899		114,715
Financing Receivable, Revolving	77,279		77,279		80,160
Loans	322,044		322,044		327,755
Nonperforming Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	387		387		940
Financing Receivable, Revolving	0		0		565
Loans	387		387		1,505
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	957,904		957,904		898,709
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0	0	0
Commercial real estate | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	97,914		97,914		138,085
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	137,136		137,136		159,152
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	171,521		171,521		136,914
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	129,800		129,800		64,352
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	60,320		60,320		74,782
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	341,396		341,396		309,794
Financing Receivable, Revolving	19,817		19,817		15,630
Loans	957,904		957,904		898,709
Commercial real estate | Pass | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	97,426		97,426		136,158
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	134,288		134,288		152,767
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	164,910		164,910		130,994
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	123,922		123,922		60,918
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	56,029		56,029		65,856
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	318,720		318,720		287,026
Financing Receivable, Revolving	18,020		18,020		13,636
Loans	913,315		913,315		847,355
Commercial real estate | Special Mention | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	488		488		1,927
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	2,848		2,848		6,385
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	4,830		4,830		5,920
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	5,878		5,878		1,904
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	2,795		2,795		8,222
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	15,505		15,505		16,244
Financing Receivable, Revolving	1,797		1,797		1,994
Loans	34,141		34,141		42,596
Commercial real estate | Substandard | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,781		1,781		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		1,530
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	1,496		1,496		704
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	7,171		7,171		6,524
Financing Receivable, Revolving	0		0		0
Loans	10,448		10,448		8,758
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	397,994		397,994		394,189
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0	0	0
Residential mortgage | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	18,113		18,113		39,734
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	38,296		38,296		27,694
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	23,953		23,953		41,624
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	39,484		39,484		15,155
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	13,989		13,989		11,318
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	36,391		36,391		29,949
Financing Receivable, Revolving	513		513		464
Loans	170,739		170,739		165,938
Residential mortgage | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	12,390		12,390		33,884
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	40,244		40,244		45,221
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	41,284		41,284		14,878
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	13,732		13,732		16,184
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	14,879		14,879		9,059
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	104,654		104,654		108,869
Financing Receivable, Revolving	72		72		156
Loans	227,255		227,255		228,251
Residential mortgage | Pass | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	18,113		18,113		39,146
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	37,415		37,415		27,612
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	23,683		23,683		41,031
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	38,909		38,909		14,758
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	13,743		13,743		10,492
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	33,124		33,124		27,274
Financing Receivable, Revolving	419		419		402
Loans	165,406		165,406		160,715
Residential mortgage | Special Mention | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		588
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	881		881		82
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	270		270		593
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	575		575		397
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	246		246		826
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,199		3,199		2,457
Financing Receivable, Revolving	94		94		62
Loans	5,265		5,265		5,005
Residential mortgage | Substandard | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	68		68		218
Financing Receivable, Revolving	0		0		0
Loans	68		68		218
Residential mortgage | Performing Loans | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	12,390		12,390		33,884
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	40,244		40,244		45,221
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	41,284		41,284		14,878
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	13,732		13,732		16,184
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	14,879		14,879		9,059
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	104,279		104,279		108,021
Financing Receivable, Revolving	72		72		156
Loans	226,880		226,880		227,403
Residential mortgage | Nonperforming Loans | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	375		375		848
Financing Receivable, Revolving	0		0		0
Loans	375		375		848
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	152,148		152,148		152,344
Financing Receivable, Allowance for Credit Loss, Writeoff	0	81	0	110
Commercial and industrial | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	9,151		9,151		12,454
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	11,727		11,727		24,697
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	21,261		21,261		35,619
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	30,769		30,769		16,234
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	13,609		13,609		14,071
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	26,873		26,873		19,836
Financing Receivable, Revolving	38,758		38,758		29,433
Loans	152,148		152,148		152,344
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff					0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff					0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff					0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff					0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff					0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff					110
Financing Receivable, Revolving, Writeoff					0
Financing Receivable, Allowance for Credit Loss, Writeoff					110
Commercial and industrial | Pass | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	8,979		8,979		12,319
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	11,038		11,038		24,259
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	20,545		20,545		34,830
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	30,192		30,192		15,614
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	13,511		13,511		13,922
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	25,644		25,644		17,780
Financing Receivable, Revolving	33,010		33,010		25,147
Loans	142,919		142,919		143,871
Commercial and industrial | Special Mention | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	172		172		128
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	153		153		303
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	248		248		290
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	223		223		529
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	82		82		140
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	449		449		459
Financing Receivable, Revolving	2,703		2,703		2,014
Loans	4,030		4,030		3,863
Commercial and industrial | Substandard | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		7
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	536		536		135
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	468		468		499
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	354		354		91
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	16		16		9
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	780		780		1,597
Financing Receivable, Revolving	3,045		3,045		2,272
Loans	5,199		5,199		4,610
Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	84,316		84,316		90,163
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0	0	0
Home equity lines of credit | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		300
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	296		296		99
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	94		94		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	455		455		493
Financing Receivable, Revolving	5,923		5,923		5,962
Loans	6,768		6,768		6,854
Home equity lines of credit | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		23
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	19		19		38
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	35		35		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		13
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	12		12		94
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,809		2,809		4,834
Financing Receivable, Revolving	74,673		74,673		78,307
Loans	77,548		77,548		83,309
Home equity lines of credit | Pass | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		300
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	296		296		99
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	94		94		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	281		281		131
Financing Receivable, Revolving	5,227		5,227		5,235
Loans	5,898		5,898		5,765
Home equity lines of credit | Special Mention | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0		0		0
Financing Receivable, Revolving	696		696		727
Loans	696		696		727
Home equity lines of credit | Substandard | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	174		174		362
Financing Receivable, Revolving	0		0		0
Loans	174		174		362
Home equity lines of credit | Performing Loans | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		23
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	19		19		38
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	35		35		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		13
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	12		12		94
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,809		2,809		4,742
Financing Receivable, Revolving	74,673		74,673		77,745
Loans	77,548		77,548		82,655
Home equity lines of credit | Nonperforming Loans | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year					0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year					0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year					0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year					0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year					0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year					92
Financing Receivable, Revolving					562
Loans					654
Real estate construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	75,953		75,953		84,341
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0	0	0
Real estate construction | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	9,985		9,985		19,766
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	29,290		29,290		40,223
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	16,678		16,678		3,953
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,220		1,220		1,252
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	306		306		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,834		1,834		3,398
Financing Receivable, Revolving	8,785		8,785		8,003
Loans	68,098		68,098		76,595
Real estate construction | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	4,240		4,240		5,571
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,773		1,773		753
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	565		565		175
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	165		165		210
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	193		193		170
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	919		919		867
Financing Receivable, Revolving	0		0		0
Loans	7,855		7,855		7,746
Real estate construction | Pass | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	9,985		9,985		19,766
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	29,172		29,172		39,758
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	16,397		16,397		3,953
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,220		1,220		1,160
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	306		306		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,091		1,091		2,604
Financing Receivable, Revolving	8,739		8,739		8,003
Loans	66,910		66,910		75,244
Real estate construction | Special Mention | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	118		118		465
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	281		281		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		92
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	679		679		725
Financing Receivable, Revolving	46		46		0
Loans	1,124		1,124		1,282
Real estate construction | Substandard | Internally Risk Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	64		64		69
Financing Receivable, Revolving	0		0		0
Loans	64		64		69
Real estate construction | Performing Loans | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	4,240		4,240		5,571
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,773		1,773		753
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	565		565		175
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	165		165		210
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	193		193		170
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	907		907		867
Financing Receivable, Revolving	0		0		0
Loans	7,843		7,843		7,746
Real estate construction | Nonperforming Loans | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0		0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0		0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0		0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	12		12
Financing Receivable, Revolving	0		0
Loans	12		12
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	9,773		9,773		9,954
Financing Receivable, Allowance for Credit Loss, Writeoff	51	$ 109	163	$ 279
Consumer | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	1,823		1,823		2,351
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,710		1,710		2,685
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,917		1,917		778
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	552		552		522
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	333		333		271
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	904		904		1,085
Financing Receivable, Revolving	2,534		2,534		2,262
Loans	9,773		9,773		9,954
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff			0		48
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff			0		83
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff			9		42
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff			0		55
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff			0		23
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff			7		78
Financing Receivable, Revolving, Writeoff			147		67
Financing Receivable, Allowance for Credit Loss, Writeoff			163		396
Consumer | Performing Loans | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	1,823		1,823		2,351
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	1,710		1,710		2,685
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,917		1,917		778
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	552		552		522
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	333		333		271
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	904		904		1,085
Financing Receivable, Revolving	2,534		2,534		2,259
Loans	$ 9,773		$ 9,773		9,951
Consumer | Nonperforming Loans | Performance Rated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year					0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year					0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year					0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year					0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year					0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year					0
Financing Receivable, Revolving					3
Loans					$ 3

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses - Schedule of Allowance for Credit Losses and Recorded Investment in Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	$ 17,162	$ 19,148	$ 19,969	$ 17,861	$ 17,861
Charge-offs	(51)	(190)	(163)	(389)	(506)
Recoveries	22	56	94	100
Provisions (credits)	81	250	(2,686)	74
Allowance for Credit Losses, Ending balance	17,214	19,264	17,214	19,264	19,969
Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				1,618	1,618
Commercial Real Estate
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	10,196	11,728	12,010	10,016	10,016
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	196	170	(1,618)	776
Allowance for Credit Losses, Ending balance	10,392	11,898	10,392	11,898	12,010
Commercial Real Estate | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				1,106	1,106
Residential Mortgage
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	2,839	3,075	3,303	3,029	3,029
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	31	78	(433)	(173)
Allowance for Credit Losses, Ending balance	2,870	3,153	2,870	3,153	3,303
Residential Mortgage | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				297	297
Commercial and Industrial
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	1,465	1,941	2,048	2,848	2,848
Charge-offs	0	(81)	0	(110)
Recoveries	6	32	24	42
Provisions (credits)	301	(381)	(300)	(507)
Allowance for Credit Losses, Ending balance	1,772	1,511	1,772	1,511	2,048
Commercial and Industrial | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				(762)	(762)
Home Equity Lines of Credit
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	312	388	397	347	347
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	(16)	5	(101)	29
Allowance for Credit Losses, Ending balance	296	393	296	393	397
Home Equity Lines of Credit | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				17	17
Real Estate Construction
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	2,247	1,885	2,070	1,000	1,000
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	(467)	279	(290)	(183)
Allowance for Credit Losses, Ending balance	1,780	2,164	1,780	2,164	2,070
Real Estate Construction | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				1,347	1,347
Consumer
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	103	131	141	376	376
Charge-offs	(51)	(109)	(163)	(279)
Recoveries	16	24	70	58
Provisions (credits)	36	99	56	132
Allowance for Credit Losses, Ending balance	104	145	104	145	141
Consumer | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				(142)	(142)
Unallocated
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance	0	0	0	245	245
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provisions (credits)	0	0	0	0
Allowance for Credit Losses, Ending balance	$ 0	$ 0	$ 0	0	0
Unallocated | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Credit Losses, Beginning balance				$ (245)	$ (245)

Deposits - Composition of Depos

Deposits - Composition of Deposits (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Deposits [Abstract]
Noninterest-bearing demand deposits	$ 463,501	$ 500,332
Interest-bearing demand deposits	509,930	524,289
Money market	249,197	264,907
Savings	311,958	340,134
Total demand and savings	1,534,586	1,629,662
Time	256,731	232,151
Total deposits	1,791,317	1,861,813
Brokered time deposits	$ 1,500	$ 0

Deposits - Time Deposit Maturit

Deposits - Time Deposit Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Deposit Liability [Line Items]
Time	$ 256,731	$ 232,151
Less than $250,000
Deposit Liability [Line Items]
Less than 1 year	183,010
1 - 2 years	16,136
2 - 3 years	7,589
3 - 4 years	2,764
4 - 5 years	2,130
Thereafter	90
Time	211,719
$250,000 or more
Deposit Liability [Line Items]
Less than 1 year	44,229
1 - 2 years	783
2 - 3 years	0
3 - 4 years	0
4 - 5 years	0
Thereafter	0
Time	$ 45,012

Borrowings - Schedule of Short-

Borrowings - Schedule of Short-Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Short-Term Debt [Line Items]
Short-term borrowings	$ 37,769	$ 56,882
Securities sold under agreements to repurchase
Short-Term Debt [Line Items]
Short-term borrowings	37,769	26,882
FHLB Advances
Short-Term Debt [Line Items]
Short-term borrowings	$ 0	$ 30,000

Borrowings - Narrative (Details

Borrowings - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended
	Mar. 30, 2021	Sep. 30, 2024	Mar. 15, 2024
Debt Instrument [Line Items]
Bank par value		$ 10,600
Bank lines of credit		$ 192,000
Weighted average rate percentage		4.52%
Amount eligible to borrow from FHLB		$ 920,100
Amount available to borrow from FHLB		684,000
Subordinated debt
Debt Instrument [Line Items]
Subordinated debt issued	$ 15,000
Basis spread on prime rate, percentage	3.29%
Interest rate percentage	4%
Debt Instrument, issuance price, percentage	100%
Trust preferred subordinated debt, FCBI | Subordinated debt
Debt Instrument [Line Items]
Subordinated debt issued		$ 6,000
Basis spread on prime rate, percentage		1.63%
Interest rate percentage			6.84%

Borrowings - Schedule of Long-T

Borrowings - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Federal Home Loan Bank, Advance, Maturity, Year Two	$ 80,000
Federal Home Loan Bank, Advance, Maturity, Year Three	90,000	$ 80,000
Federal Home Loan Bank, Advance, Maturity, Year Four	35,000	60,000
Federal Home Loan Bank, Advance, Maturity, Year Five	30,000	35,000
Federal Home Loan Bank, Advance, Maturity, Year Six		0
Long-term debt outstanding	255,322	195,292
Subordinated debt
Debt Instrument [Line Items]
Long-term debt outstanding	15,000	15,000
Trust preferred subordinated debt, FCBI | Subordinated debt
Debt Instrument [Line Items]
Long-term debt outstanding	$ 5,322	$ 5,292

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	$ 418,079	$ 451,693
Equity securities with readily determinable fair values	947	928	$ 1,719
Loans held for sale	1,080	280
Foreclosed assets held for resale	406	467
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Equity securities with readily determinable fair values	947	928
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	418,079	451,693
Equity securities with readily determinable fair values	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Equity securities with readily determinable fair values	0	0
U.S. Government and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	152,209	156,795
Residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	149,068	158,830
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	15,838	29,694
Commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	62,897	65,290
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Equity securities with readily determinable fair values	947	928
Loans held for sale	0	0
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	418,079	451,693
Equity securities with readily determinable fair values	0	0
Loans held for sale	1,080	280
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Equity securities with readily determinable fair values	0	0
Loans held for sale	0	0
Recurring | U.S. Government and agencies | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Recurring | U.S. Government and agencies | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	152,209	156,795
Recurring | U.S. Government and agencies | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Recurring | Residential mortgage-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Recurring | Residential mortgage-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	149,068	158,830
Recurring | Residential mortgage-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Recurring | Corporate bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Recurring | Corporate bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	15,838	29,694
Recurring | Corporate bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Recurring | Commercial mortgage-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Recurring | Commercial mortgage-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	62,897	65,290
Recurring | Commercial mortgage-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Recurring | Collateralized Mortgage Obligations | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Recurring | Collateralized Mortgage Obligations | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	38,067	41,084
Recurring | Collateralized Mortgage Obligations | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	0	0
Non-recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed assets held for resale	0	0
Non-recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed assets held for resale	0	0
Non-recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed assets held for resale	406	467
Non-recurring | Individually evaluated loans | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Non-recurring | Individually evaluated loans | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Non-recurring | Individually evaluated loans | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	262	242
Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	418,079	451,693
Equity securities with readily determinable fair values	947	928
Total | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	418,079	451,693
Equity securities with readily determinable fair values	947	928
Loans held for sale	1,080	280
Total | Recurring | U.S. Government and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	152,209	156,795
Total | Recurring | Residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	149,068	158,830
Total | Recurring | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	15,838	29,694
Total | Recurring | Commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	62,897	65,290
Total | Recurring | Collateralized Mortgage Obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale, at estimated fair value	38,067	41,084
Total | Non-recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreclosed assets held for resale	406	467
Total | Non-recurring | Individually evaluated loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 262	$ 242

Fair Value Measurements - Sch_2

Fair Value Measurements - Schedule of Additional Quantitative Information (Details) - Non-recurring - Level 3 $ in Thousands	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Individually evaluated loans
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Estimate	$ 262	$ 242
Foreclosed assets held for resale
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Estimate	$ 406	$ 467
Measurement Input, Discount Rate | Individually evaluated loans
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.81	0.94
Measurement Input, Discount Rate | Individually evaluated loans | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.17	0.33
Measurement Input, Discount Rate | Individually evaluated loans | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	1	1
Measurement Input, Discount Rate | Foreclosed assets held for resale
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.53	0.56

Fair Value Measurements - Sch_3

Fair Value Measurements - Schedule of Carrying Amount, Fair Value and Placement in Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Financial assets:
Interest-bearing deposits with banks	$ 33,456	$ 44,516
Equity securities with readily determinable fair values	947	928	$ 1,719
Investment securities AFS	418,079	451,693
Securities held to maturity, fair value	59,038	59,057
Restricted investment in bank stocks	10,853	9,677
Level 1
Financial assets:
Cash and due from banks	24,636	7,063
Interest-bearing deposits with banks	33,456	44,516
Equity securities with readily determinable fair values	947	928
Investment securities AFS	0	0
Securities held to maturity, fair value	0	0
Loans held for sale	0	0
Loans, net	0	0
Accrued interest receivable	0	0
Restricted investment in bank stocks	0	0
Financial liabilities:
Demand deposits, savings, and money markets	0	0
Time deposits	0	0
Securities sold under repurchase agreements	0	0
FHLB Advances	0	0
Trust preferred and subordinated debt	0	0
Accrued interest payable	0	0
Level 2
Financial assets:
Cash and due from banks	0	14,379
Interest-bearing deposits with banks	0	0
Equity securities with readily determinable fair values	0	0
Investment securities AFS	418,079	451,693
Securities held to maturity, fair value	59,038	59,057
Loans held for sale	1,080	280
Loans, net	0	0
Accrued interest receivable	7,987	8,080
Restricted investment in bank stocks	10,853	9,677
Financial liabilities:
Demand deposits, savings, and money markets	1,333,125	1,391,709
Time deposits	250,936	221,770
Securities sold under repurchase agreements	40,649	23,666
FHLB Advances	240,277	206,950
Trust preferred and subordinated debt	18,372	16,992
Accrued interest payable	1,531	794
Level 3
Financial assets:
Cash and due from banks	0	0
Interest-bearing deposits with banks	0	0
Equity securities with readily determinable fair values	0	0
Investment securities AFS	0	0
Securities held to maturity, fair value	0	0
Loans held for sale	0	0
Loans, net	1,641,479	1,562,703
Accrued interest receivable	0	0
Restricted investment in bank stocks	0	0
Financial liabilities:
Demand deposits, savings, and money markets	0	0
Time deposits	0	0
Securities sold under repurchase agreements	0	0
FHLB Advances	0	0
Trust preferred and subordinated debt	0	0
Accrued interest payable	0	0
Carrying Amount
Financial assets:
Cash and due from banks	24,636	21,442
Interest-bearing deposits with banks	33,456	44,516
Equity securities with readily determinable fair values	947	928
Investment securities AFS	418,079	451,693
Securities held to maturity, fair value	64,578	64,600
Loans held for sale	1,080	280
Loans, net	1,659,898	1,608,019
Accrued interest receivable	7,987	8,080
Restricted investment in bank stocks	10,853	9,677
Financial liabilities:
Demand deposits, savings, and money markets	1,534,586	1,629,662
Time deposits	256,731	232,151
Securities sold under repurchase agreements	37,769	26,882
FHLB Advances	235,000	205,000
Trust preferred and subordinated debt	20,322	20,292
Accrued interest payable	1,531	794
Total
Financial assets:
Cash and due from banks	24,636	21,442
Interest-bearing deposits with banks	33,456	44,516
Equity securities with readily determinable fair values	947	928
Investment securities AFS	418,079	451,693
Securities held to maturity, fair value	59,038	59,057
Loans held for sale	1,080	280
Loans, net	1,641,479	1,562,703
Accrued interest receivable	7,987	8,080
Restricted investment in bank stocks	10,853	9,677
Financial liabilities:
Demand deposits, savings, and money markets	1,333,125	1,391,709
Time deposits	250,936	221,770
Securities sold under repurchase agreements	40,649	23,666
FHLB Advances	240,277	206,950
Trust preferred and subordinated debt	18,372	16,992
Accrued interest payable	$ 1,531	$ 794

Retirement Benefits (Details)

Retirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Postemployment Benefits [Abstract]
Service cost	$ 107	$ 124	$ 321	$ 372
Interest cost	373	373	1,121	1,119
Expected return on plan assets	(712)	(663)	(2,136)	(1,989)
Amortization of net loss	20	98	58	294
Net Periodic Benefit Income	$ (212)	$ (68)	$ (636)	$ (204)

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Loan to value ratio requirement (no greater than)	80%
Line of Credit
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Commercial line of credit borrowing capacity	$ 1,500
Unsecured debt | Line of Credit
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Commercial line of credit borrowing capacity	5,000
Commitments to Extend Credit
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet financial instruments	363,631	$ 403,300
Standby Letters of Credit
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet financial instruments	$ 14,362	$ 21,029

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 289,331	$ 257,069	$ 277,461	$ 245,042
Unrealized gain (loss) on AFS securities, net of tax	12,334	(7,033)	10,331	(8,288)
Realized (losses) gains on securities, net of tax	0	0	53	556
Amortization of unrealized losses on securities transferred to HTM, net of tax	215	244	645	731
Amortization of pension net loss, transition liability and prior service cost, net of tax	15	74	45	246
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	12,564	(6,715)	11,074	(6,755)
Ending balance	306,755	255,638	306,755	255,638
Unrealized (Losses) Gains on Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(42,472)	(52,946)	(40,952)	(52,734)
Unrealized gain (loss) on AFS securities, net of tax	12,334	(7,033)	10,331	(8,288)
Realized (losses) gains on securities, net of tax			53	556
Amortization of unrealized losses on securities transferred to HTM, net of tax	215	244	645	731
Amortization of pension net loss, transition liability and prior service cost, net of tax	0	0	0	0
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	12,549	(6,789)	11,029	(7,001)
Ending balance	(29,923)	(59,735)	(29,923)	(59,735)
Pension Liability
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(3,927)	(5,106)	(3,957)	(5,278)
Unrealized gain (loss) on AFS securities, net of tax	0	0	0	0
Realized (losses) gains on securities, net of tax			0	0
Amortization of unrealized losses on securities transferred to HTM, net of tax	0	0	0	0
Amortization of pension net loss, transition liability and prior service cost, net of tax	15	74	45	246
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	15	74	45	246
Ending balance	(3,912)	(5,032)	(3,912)	(5,032)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(46,399)	(58,052)	(44,909)	(58,012)
Unrealized gain (loss) on AFS securities, net of tax	12,334	(7,033)	10,331	(8,288)
Realized (losses) gains on securities, net of tax			53	556
Amortization of unrealized losses on securities transferred to HTM, net of tax	215	244	645	731
Amortization of pension net loss, transition liability and prior service cost, net of tax	15	74	45	246
TOTAL OTHER COMPREHENSIVE INCOME (LOSS)	12,564	(6,715)	11,074	(6,755)
Ending balance	$ (33,835)	$ (64,767)	$ (33,835)	$ (64,767)

Segment Reporting (Details)

Segment Reporting (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) segment	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Segment Reporting [Abstract]
Number of reporting segments | segment			2
Segment Reporting Information [Line Items]
Interest income and other income from external customers	$ 34,074	$ 30,531	$ 99,011	$ 88,831
Interest expense	6,299	2,489	17,585	4,529
Depreciation and amortization	744	825	2,268	2,559
Income before income taxes	9,410	11,627	32,185	35,103
Total assets	2,420,914	2,388,522	2,420,914	2,388,522	$ 2,418,847
Goodwill	44,185	44,185	44,185	44,185	$ 44,185
Capital expenditures	222	68	587	174
Banking
Segment Reporting Information [Line Items]
Interest income and other income from external customers	31,286	28,080	91,359	81,638
Interest expense	6,299	2,489	17,585	4,529
Depreciation and amortization	548	613	1,677	1,925
Income before income taxes	8,801	11,107	30,810	33,508
Total assets	2,396,726	2,369,705	2,396,726	2,369,705
Goodwill	35,800	35,800	35,800	35,800
Capital expenditures	222	68	556	168
Insurance
Segment Reporting Information [Line Items]
Interest income and other income from external customers	2,788	2,451	7,652	7,193
Interest expense	0	0	0	0
Depreciation and amortization	196	212	591	634
Income before income taxes	609	520	1,375	1,595
Total assets	24,188	18,817	24,188	18,817
Goodwill	8,385	8,385	8,385	8,385
Capital expenditures	$ 0	$ 0	$ 31	$ 6