ACNB (ACNB) 10-Q 4 Aug 23 2023 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2023	Aug. 04, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2023
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	true
Entity Emerging Growth Company	false
Document Shell Company Report	false
Entity Common Stock, Shares Outstanding		8,564,282
Entity Central Index Key	0000715579
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
Amendment Flag	false

CONSOLIDATED STATEMENTS OF COND

CONSOLIDATED STATEMENTS OF CONDITION (UNAUDITED) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 24,898	$ 40,067
Interest bearing deposits with banks	59,145	128,094
Total Cash and Cash Equivalents	84,043	168,161
Equity securities with readily determinable fair values	915	1,719
Debt securities available for sale	452,252	553,554
Securities held to maturity, fair value $58,133; $58,078	64,926	64,977
Loans held for sale	0	123
Loans, net of allowance for credit losses $19,148; $17,861	1,554,669	1,520,749
Assets held for sale	1,418	3,393
Premises and equipment, net	26,145	27,053
Right of use assets	2,952	3,162
Restricted investment in bank stocks	4,877	1,629
Investment in bank-owned life insurance	78,919	77,993
Investments in low-income housing partnerships	1,066	1,129
Goodwill	44,185	44,185
Intangible assets, net	9,612	10,332
Foreclosed assets held for resale	467	474
Other assets	51,705	46,874
Total assets	2,378,151	2,525,507
Deposits:
Non-interest bearing	569,729	595,049
Interest bearing	1,394,025	1,603,926
Total Deposits	1,963,754	2,198,975
Short-term borrowings	51,703	41,954
Long-term borrowings	81,000	21,000
Lease liabilities	2,952	3,162
Allowance for unfunded commitments	2,132	92
Other liabilities	19,541	15,282
Total Liabilities	2,121,082	2,280,465
STOCKHOLDERS’ EQUITY
Preferred stock, $2.50 par value; 20,000,000 shares authorized; no shares outstanding	0	0
Common stock, $2.50 par value; 20,000,000 shares authorized; 8,888,732 and 8,838,720 shares issued; 8,564,282 and 8,515,120 shares outstanding	22,212	22,086
Treasury stock, at cost; 324,450 and 323,600 shares	(8,956)	(8,927)
Additional paid-in capital	96,586	96,022
Retained earnings	205,279	193,873
Accumulated other comprehensive loss	(58,052)	(58,012)
Total Stockholders’ Equity	257,069	245,042
Total Liabilities and Stockholders’ Equity	$ 2,378,151	$ 2,525,507

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF CONDITION (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Securities held to maturity, fair value	$ 58,133	$ 58,078
Allowance for credit losses on loans	$ 19,148	$ 17,861
Preferred stock, par value (in dollars per share)	$ 2.50	$ 2.50
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 2.50	$ 2.50
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	8,888,732	8,838,720
Common stock, shares outstanding	8,564,282	8,515,120
Treasury stock, shares	324,450	323,600

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
INTEREST AND DIVIDEND INCOME
Loans, including fees	$ 18,947	$ 16,414	$ 37,845	$ 32,200
Interest and Fee Income, Loans and Leases, Tax-Exempt	352	356	708	660
Securities:
Taxable	2,688	2,722	5,974	4,272
Tax-exempt	285	289	599	429
Dividends	51	24	92	59
Other	890	891	1,904	1,153
Total Interest Income	23,213	20,696	47,122	38,773
INTEREST EXPENSE
Deposits	486	646	959	1,384
Short-term borrowings	108	20	125	37
Long-term borrowings	629	226	956	495
Total Interest Expense	1,223	892	2,040	1,916
Net Interest Income	21,990	19,804	45,082	36,857
Net Interest Income after Provisions for (Reversal of) Credit Losses and Unfunded Commitments	22,142	19,804	44,861	36,857
OTHER INCOME
Commissions from insurance sales	2,840	2,808	4,742	4,008
Earnings on investment in bank-owned life insurance	484	363	926	690
Net losses on sales or calls of securities	(546)	0	(739)	0
Net (losses) gains on equity securities	(15)	(148)	5	(257)
Gain on assets held for sale	323	0	323	0
Other	292	221	463	460
Total Other Income	6,194	6,076	11,178	10,535
OTHER EXPENSES
Salaries and employee benefits	9,824	9,314	20,266	16,873
Net occupancy	1,002	939	2,039	2,098
Equipment	1,623	1,527	3,230	3,045
Other tax	305	402	642	818
Professional services	601	430	983	739
Supplies and postage	198	195	404	376
Marketing and corporate relations	159	67	313	170
FDIC and regulatory	295	264	544	535
Intangible assets amortization	360	389	720	698
Other operating	1,914	1,479	3,422	2,936
Total Other Expenses	16,281	15,006	32,563	28,288
Income before Income Taxes	12,055	10,874	23,476	19,104
PROVISION FOR INCOME TAXES	2,531	2,244	4,929	3,875
Net Income	$ 9,524	$ 8,630	$ 18,547	$ 15,229
PER SHARE DATA
Basic earnings (in dollars per share)	$ 1.12	$ 0.99	$ 2.18	$ 1.75
Diluted earnings (in dollars per share)	$ 1.12	$ 0.99	$ 2.17	$ 1.75
Financing Receivable Excluding Unfunded Commitments
INTEREST EXPENSE
Reversal of Credit Losses	$ (273)	$ 0	$ (176)	$ 0
Unfunded Loan Commitment
INTEREST EXPENSE
Reversal of Credit Losses	121	0	397	0
Service charges on deposit accounts
OTHER INCOME
Revenue from contract with customer, excluding assessed tax	989	1,006	1,951	1,964
Income from fiduciary, investment management and brokerage activities
OTHER INCOME
Revenue from contract with customer, excluding assessed tax	979	816	1,819	1,626
Gain from mortgage loans held for sale
OTHER INCOME
Revenue from contract with customer, excluding assessed tax	14	145	31	426
Service charges on ATM and debit card transactions
OTHER INCOME
Revenue from contract with customer, excluding assessed tax	$ 834	$ 865	$ 1,657	$ 1,618

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
NET INCOME		$ 9,524	$ 8,630	$ 18,547	$ 15,229
SECURITIES
Unrealized losses arising during the period, net of income taxes of $(2,077), $(3,630), $(1,442) and $(9,758), respectively		(6,891)	(12,701)	(1,255)	(34,139)
Reclassification adjustment for net losses included in net income, net of income taxes of $138, $0, $172 and $0, respectively (A) (C)	[1],[2]	410	0	556	0
Total unrealized loss on investment securities		(6,481)	(12,701)	(699)	(34,139)
Amortization of unrealized losses on securities previously transferred to held to maturity, net of income taxes of $13, $0, $78, and $0, respectively (D)	[3]	265	0	487	0
Total amortization of unrealized losses on investment securities		265	0	487	0
PENSION
Amortization of pension net loss, transition liability, and prior service cost, net of income taxes of $(26), $22, $24 and $45, respectively (B) (C)	[2],[4]	124	79	172	158
Unrecognized net loss, net of income taxes of $0, $0, $0 and $0, respectively (C)	[2]	0	0	0	0
Total unrealized loss on pension		124	79	172	158
TOTAL OTHER COMPREHENSIVE LOSS		(6,092)	(12,622)	(40)	(33,981)
TOTAL COMPREHENSIVE INCOME (LOSS)		$ 3,432	$ (3,992)	$ 18,507	$ (18,752)
[1]Gross amounts are included in net gains on sales or call of securities on the Consolidated Statements of Income in total other income.[2]Income tax amounts are included in the provision for income taxes on the Consolidated Statements of Income.[3]Total unrealized loss remaining on investment securities held to maturity was $2,525,000 at June 30, 2023[4]Gross amounts are included in the computation of net periodic benefit cost and are included in salaries and employee benefits on the Consolidated Statements of Income in total other expenses.

CONSOLIDATED STATEMENTS OF CO_3

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
SECURITIES: Unrealized (losses) gains arising during the period, income taxes	$ (2,077)	$ (3,630)	$ (1,442)	$ (9,758)
SECURITIES: Reclassification adjustment for gains included in net income, income taxes	138	0	172	0
SECURITIES: Amortization of unrealized losses on securities transferred to held to maturity, income taxes	(13)	0	(78)	0
PENSION: Amortization of pension net loss, transition liability, and prior service cost, income taxes	(26)	22	24	45
PENSION: Unrecognized net loss, income tax	$ 0	$ 0	$ 0	$ 0

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, 2021	$ 272,114	$ 21,978	$ (2,245)	$ 94,688	$ 167,238	$ (9,545)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,599				6,599
Other comprehensive income (loss), net of taxes	(21,359)					(21,359)
Common stock shares issued	183	14		169
Restricted stock grants	729	56		673
Cash dividends	(2,257)				(2,257)
Ending Balance at Mar. 31, 2022	256,009	22,048	(2,245)	95,530	171,580	(30,904)
Beginning Balance at Dec. 31, 2021	272,114	21,978	(2,245)	94,688	167,238	(9,545)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	15,229
Ending Balance at Jun. 30, 2022	247,032	22,061	(5,150)	95,701	177,946	(43,526)
Beginning Balance at Mar. 31, 2022	256,009	22,048	(2,245)	95,530	171,580	(30,904)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,630				8,630
Other comprehensive income (loss), net of taxes	(12,622)					(12,622)
Common stock shares issued	184	13		171
Repurchased shares	(2,905)		(2,905)
Cash dividends	(2,264)				(2,264)
Ending Balance at Jun. 30, 2022	247,032	22,061	(5,150)	95,701	177,946	(43,526)
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)
Issuance of restricted common shares, net of forfeiture and shares withheld for taxes	0	97		(97)
Compensation expense for restricted shares	317			317
Cash dividends	(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	18,547
Ending Balance at Jun. 30, 2023	257,069	22,212	(8,956)	96,586	205,279	(58,052)
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	(2,389)				(2,389)
Ending Balance at Jun. 30, 2023	$ 257,069	$ 22,212	$ (8,956)	$ 96,586	$ 205,279	$ (58,052)

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) (Parenthetical) - $ / shares	3 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022
Statement of Stockholders' Equity [Abstract]
Common stock shares issued (in shares)	5,526	5,889	5,532	5,587
Common stock shares repurchased (in shares)		850	88,225
Restricted stock grants (in shares)		43,074		21,935
Cash dividends declared (in dollars per share)	$ 0.28	$ 0.28	$ 0.26	$ 0.26

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 18,547	$ 15,229
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sales of loans originated for sale	(31)	(426)
Gain on sales of foreclosed assets held for resale, including writedowns	(314)	0
Earnings on investment in bank-owned life insurance	(926)	(690)
Loss on sales or calls of securities	739	0
(Gain) Loss on equity securities	(5)	257
Restricted stock compensation expense	317	243
Depreciation and amortization	1,734	1,834
Provision for credit losses and provision for unfunded commitments	221	0
Net amortization of investment securities premiums	936	1,140
Decrease (Increase) in accrued interest receivable	213	(518)
Increase (Decrease) in accrued interest payable	240	(56)
Mortgage loans originated for sale	(21,023)	(23,470)
Proceeds from sales of loans originated for sale	21,177	25,644
Decrease (Increase) in other assets	454	(4,442)
(Increase) Decrease in deferred tax expense	(852)	1,243
Increase in other liabilities	3,046	426
Net Cash Provided by Operating Activities	24,473	16,414
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from calls/maturities of investment securities held to maturity	416	1,907
Proceeds from calls/maturities of investment securities available for sale	19,246	27,950
Proceeds from sales of investment securities available for sale	78,624	0
Proceeds from sales of equity securities	591	0
Purchase of investment securities available for sale	0	(204,874)
Purchase of investment securities held to maturity	0	(22,204)
(Purchase) Redemption of restricted investment in bank stocks	(3,248)	654
Net increase in loans	(36,509)	(41,455)
Acquisition of insurance agency	0	(7,800)
Capital expenditures	(106)	(720)
Proceeds from sales of premises and equipment	0	1,093
Proceeds from sales of foreclosed real estate and assets held for sale	2,296	0
Net Cash Provided by (Used in) Investing Activities	61,310	(245,449)
CASH FLOWS FROM FINANCING ACTIVITIES
Net decrease in demand deposits	(25,320)	(39,461)
Net decrease in time certificates of deposits and interest bearing deposits	(209,901)	(23,155)
Net increase (decrease) in short-term borrowings	9,749	(6,243)
Proceeds from long-term borrowings	60,000	1,500
Repayments on long-term borrowings	0	(11,550)
Dividends paid	(4,773)	(4,521)
Common stock repurchased	(29)	(2,905)
Common stock issued	373	853
Net Cash Used in Financing Activities	(169,901)	(85,482)
Net Decrease in Cash and Cash Equivalents	(84,118)	(314,517)
CASH AND CASH EQUIVALENTS — BEGINNING	168,161	710,131
CASH AND CASH EQUIVALENTS — ENDING	84,043	395,614
Supplemental disclosures of cash flow information
Interest paid	1,800	1,972
Income taxes paid	4,800	2,450
Non-cash investing activities
Investments transferred from available for sale to held to maturity	$ 0	$ 39,683

Basis of Presentation and Natur

Basis of Presentation and Nature of Operations	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Nature of Operations	Basis of Presentation and Nature of Operations ACNB Corporation (the Corporation or ACNB), headquartered in Gettysburg, Pennsylvania, provides banking, insurance, and financial services to businesses and consumers through its wholly-owned subsidiaries, ACNB Bank (Bank) and ACNB Insurance Services, Inc. The Bank engages in full-service commercial and consumer banking and wealth management services, including trust and retail brokerage, through its twenty-six community banking offices, including seventeen community banking office locations in Adams, Cumberland, Franklin and York Counties, Pennsylvania, and nine community banking office locations in Carroll and Frederick Counties, Maryland. There are also loan production offices situated in Lancaster and York, Pennsylvania, and Hunt Valley, Maryland. ACNB Insurance Services, Inc. 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 Corporation’s primary sources of revenue are interest income on loans and investment securities and fee income on its products and services. Expenses consist of interest expense on deposits and borrowed funds, provisions for credit losses, and other operating expenses. The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (US GAAP) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments necessary to present fairly ACNB Corporation’s balance sheet and statement of income, comprehensive (loss) income, changes in stockholders’ equity, and cash flows. All such adjustments are of a normal recurring nature. The accounting policies followed by the Corporation are set forth in Note A to the Corporation’s consolidated financial statements in the 2022 ACNB Corporation Annual Report on Form 10-K, filed with the SEC on March 3, 2023. It is suggested that the consolidated financial statements contained herein be read in conjunction with the consolidated financial statements and notes included in the Corporation’s Annual Report on Form 10-K. The results of operations for the three and six month periods ended June 30, 2023, 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. The Corporation has evaluated events and transactions occurring subsequent to the balance sheet date of June 30, 2023, for items that should potentially be recognized or disclosed in the consolidated financial statements. The evaluation was conducted through the date these consolidated financial statements were issued. Newly adopted pronouncements in 2023: In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments”, universally referred to as Current Expected Credit Loss (CECL). The amendments in this ASU, among other things, require the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today are still permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. For smaller reporting companies, such as the Corporation, this standard (Topic 326) was effective as of January 1, 2023. The Bank’s CECL Committee, which includes members from Credit Administration, Accounting/Finance, Risk Management and Internal Audit, has oversight by the Chief Executive Officer, Chief Financial Officer, and Chief Credit Officer. The Bank engaged a third-party to assist in developing the CECL model and to assist with evaluation of data and methodologies related to this standard. As part of its process of adopting CECL, management implemented a third party software solution and determined appropriate loan segments, methodologies, model assumptions and qualitative components. The Bank’s CECL model includes portfolio loan segmentation based upon similar risk characteristics and both a quantitative and qualitative component of the calculation which incorporates a forecasting component of certain economic variables. The Bank’s implementation plan also includes the assessment and documentation of appropriate processes, policies and internal controls. Management had a third party independent consultant review and validate the CECL model. In addition, Topic 326 amends the accounting for credit losses on certain debt securities. The Corporation did not record any allowance for credit losses on its debt securities as a result of adopting Topic 326. The ultimate impact of adopting Topic 326, and at each subsequent reporting period, is highly dependent on credit quality, macroeconomic forecasts and conditions, composition of the loans and securities portfolio, along with other management judgments. The Corporation adopted Topic 326 using the modified retrospective method. Results for reporting periods beginning after January 1, 2023 are presented under Topic 326 while prior period amounts continue to be reported in accordance with previously applicable GAAP. In connection with the adoption of Topic 326, the Corporation made changes to the loan portfolio segments to align with the methodology applied in determining the allowance under CECL. Refer to Note 8 — “Loans and Allowance for Credit Losses” in the Notes to Consolidated Financial Statements for further discussion of these portfolio segments. The adoption of Topic 326 resulted in a Day 1 adjustment of $3.3 million, including an increase to the allowance for credit losses (ACL) of $1.6 million and a $1.6 million reserve on unfunded loan commitments recorded in the liabilities section on the Consolidated Statements of Condition on January 1, 2023. As of January 1, 2023, the Corporation recorded a cumulative effect adjustment of $2.4 million to decrease retained earnings related to the adoption of Topic 326. Upon CECL adoption the Corporation elected to implement the regulatory agencies’ capital transition relief over the permissible three-year period. The following table illustrates the impact of Topic 326: January 1, 2023 In thousands As Reported Under Topic 326 Pre Topic 326 Impact of Topic 326 Adoption Allowance for Credit Losses on Loans: Commercial and industrial $ (2,086) $ (2,848) $ 762 Commercial real estate (11,122) (10,016) (1,106) Commercial real estate construction (2,347) (1,000) (1,347) Residential mortgage (3,326) (3,029) (297) Home equity lines of credit (364) (347) (17) Consumer (234) (376) 142 Unallocated — (245) 245 Allowance for credit losses on loans $ (19,479) $ (17,861) $ (1,618) Assets: Total Loans, net of allowance for credit losses $ 1,519,131 $ 1,520,749 $ 1,618 Net deferred tax asset 18,452 17,718 734 Liabilities: Allowance for unfunded commitments 1,735 92 1,643 Equity: Retained earnings 242,674 245,042 2,368 The ACL represents an amount which, in management’s judgment, is adequate to absorb expected losses on outstanding loans at the balance sheet date based on the evaluation of the size and current risk characteristics of the loan portfolio, past events, current conditions, reasonable and supportable forecasts of future economic conditions and prepayment experience. The ACL is measured and recorded upon the initial recognition of a financial asset. The ACL is reduced by charge-offs, net of recoveries of previous losses, and is increased or decreased by a provision for credit losses, which is recorded as a current period operating expense. Determination of an appropriate ACL is inherently complex and requires the use of significant and highly subjective estimates. The reasonableness of the ACL is reviewed quarterly by management. Management believes it uses relevant information available to make determinations about the ACL and that it has established the existing allowance in accordance with GAAP. However, the determination of the ACL requires significant judgment, and estimates of expected losses in the loan portfolio can vary significantly from the amounts actually observed. While management uses available information to recognize expected losses, future additions to the ACL may be necessary based on changes in the loans comprising the portfolio, changes in the current and forecasted economic conditions, changes to the interest rate environment which may directly impact prepayment and curtailment rate assumptions, and changes in the financial condition of borrowers. The adoption of CECL accounting did not result in a significant change to any other credit risk management and monitoring processes, including identification of past due or delinquent borrowers, nonaccrual practices or charge-off policy. The Corporation’s methodology for estimating the ACL includes: Segmentation. The Corporation’s loan portfolio is segmented by loan types that have similar risk characteristics and behave similarly during economic cycles. Specific Analysis. A specific reserve analysis is applied to certain individually evaluated loans. These loans are evaluated quarterly generally based on collateral value, observable market value or the present value of expected future cash flows. A specific reserve is established if the fair value is less than the loan balance. A charge-off is recognized when the loss is quantifiable. Individually evaluated loans not specifically analyzed reside in the Quantitative Analysis. Quantitative Analysis . The Corporation elected to use Discounted Cash Flow (DCF) and chose unemployment rate as the driving factor of their economic forecasts. In regards to unemployment rates, the Corporation elected to forecast economic factors over the period of the next four quarters. The Corporation chose not to extend beyond four quarters given the inherent risks associated with forecasting. The Corporation utilizes relevant 3rd party forecasts as a basis and support for its own forecast. These forecasts are assumed to revert to the long-term average and utilized in the model to estimate the probability of default and loss given default through regression. The Corporation elected a reversion period of four quarters. The Corporation deemed four quarters to be a reasonable time period to ensure it did not include irrelevant information, but also not too short to introduce unnecessary volatility. Model assumptions include, but are not limited to the discount rate, prepayment speeds, funding rates, and curtailments. The product of the probability of default and the loss given default is the estimated loss rate, which varies over time. The estimated loss rate is applied within the appropriate periods in the cash flow model to determine the net present value. Net present value is also impacted by assumptions related to the duration between default and recovery. The reserve is based on the difference between the summation of the principal balances taking amortized costs into consideration and the summation of the net present values. Qualitative Analysis. Based on management’s review and analysis of internal, external and model risks, management may adjust the model output. Management reviews the peaks and troughs of the model’s calibration, taking into account economic forecasts to develop guardrails that serve as the basis for determining the reasonableness of the model’s output and makes adjustments as necessary. This process challenges unexpected variability resulting from outputs beyond the model’s calibration that appear to be unreasonable. Additionally, management may adjust the economic forecast if it is incompatible with known market conditions based on management’s experience and perspective. The current expected losses of $1.6 million were recorded due to the adoption of CECL, which now incorporates the concept of lifetime losses. Between the Day 1 CECL model and the model ended June 30, 2023, a reduction in the current expected losses of $176,000 was recognized, which resulted in a total current expected loss balance of $19.1 million as of June 30, 2023. Included in the allowance for unfunded commitments in the first quarter of 2023, was $1.6 million recorded upon Day 1 CECL adoption. Between the Day 1 CECL model and the model ended June 30, 2023, an additional $397,000 of provision was recognized, which resulted in a total allowance for unfunded commitments of $2.1 million at June 30, 2023. In March 2022, the FASB issued ASU 2022-02, “Financial Instruments—Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures.” ASU 2022-02 made certain targeted amendments specific to troubled debt restructurings (TDRs) by creditors and vintage disclosure related to gross write-offs. Upon adoption, the Corporation

Earnings Per Share and Restrict

Earnings Per Share and Restricted Stock	6 Months Ended
	Jun. 30, 2023
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 computed based on 8,517,741 and 8,695,133 weighted average shares of common stock outstanding for the six months ended June 30, 2023 and 2022, respectively, and 8,512,145 and 8,705,994 for the three months ended June 30, 2023 and 2022, respectively. Diluted earnings per share of common stock is computed based on 8,541,423 and 8,695,133 weighted average shares of common stock outstanding for the six months ended June 30, 2023 and 2022, respectively, and 8,523,877 and 8,705,994 for the three months ended June 30, 2023 and 2022, respectively. At June 30, 2023 the Corporation had 35,500 unvested shares. 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. Of the 200,000 shares of common stock authorized under this plan, 25,945 shares were issued. The remaining 174,055 shares were transferred to the ACNB Corporation 2018 Omnibus 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 are authorized, but not issued, under the ACNB Corporation 2009 Restricted Stock Plan. As of June 30, 2023, 100,746 shares were issued under this plan, of which 65,246 were fully vested, none vested during the quarter, and the remaining 35,500 will vest over the next two years. The maximum number of shares that may yet be granted under this plan is 473,309. Plan expense is recognized over the vesting period of the stock issued under both plans. $254,000 and $116,000 of compensation expenses related to the grants were recognized during the three months ended June 30, 2023 and 2022, respectively. $748,000 and $358,000 of compensation expenses related to the grants were recognized during the six months ended June 30, 2023 and 2022, respectively.

Retirement Benefits

Retirement Benefits	6 Months Ended
	Jun. 30, 2023
Postemployment Benefits [Abstract]
Retirement Benefits	Retirement Benefits The components of net periodic benefit income related to the non-contributory, defined benefit pension plan for the three and six month periods ended June 30 were as follows: Three Months Ended June 30, Six Months Ended June 30, In thousands 2023 2022 2023 2022 Service cost $ 124 $ 194 $ 248 $ 388 Interest cost 373 263 746 526 Expected return on plan assets (663) (784) (1,326) (1,568) Amortization of net loss 98 101 196 203 Net Periodic Benefit Income $ (68) $ (226) $ (136) $ (451)

Guarantees

Guarantees	6 Months Ended
	Jun. 30, 2023
Guarantees [Abstract]
Guarantees	Guarantees The Corporation does not issue any guarantees that would require liability recognition or disclosure, other than its standby letters of credit. Standby letters of credit are written conditional commitments issued by the Corporation to guarantee the performance of a customer to a third party. Generally, all letters of credit, when issued, have expiration dates within one year. The credit risk involved in issuing letters of credit is essentially the same as those that are involved in extending loan facilities to customers. The Corporation generally holds collateral and/or personal guarantees supporting these commitments. The Corporation had $17,997,000 in standby letters of credit as of June 30, 2023. Management believes that the proceeds obtained through a liquidation of collateral and the enforcement of guarantees would be sufficient to cover the potential amount of future payments required under the corresponding guarantees. The current amount of the liability, as of June 30, 2023, for guarantees under standby letters of credit issued is not material.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	6 Months Ended
	Jun. 30, 2023
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 on Securities Pension Accumulated Other Ending Balance — December 31, 2022 $ (52,734) $ (5,278) $ (58,012) Beginning balance — January 1, 2023 $ (52,734) $ (5,278) $ (58,012) Amounts reclassified from accumulated other comprehensive loss, net of tax Unrealized loss on available for sale securities, net of tax (1,255) — (1,255) Realized losses on securities, net of tax 556 — 556 Amortization of unrealized losses on securities transferred to held to maturity, net of tax 487 — 487 Amortization of pension net loss, transition liability and prior service cost, net of tax — 172 172 Unrecognized pension net gain, net of tax — — — Net current period other comprehensive (loss) income (212) 172 (40) Ending Balance — June 30, 2023 $ (52,946) $ (5,106) $ (58,052)

Segment Reporting

Segment Reporting	6 Months Ended
	Jun. 30, 2023
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting The Corporation has two reporting segments, the Bank and ACNB Insurance Services, Inc. ACNB Insurance Services, Inc., 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, Inc., offers a broad range of property and casualty, life, and health insurance to both commercial and individual clients. Segment information for the six month periods ended June 30, 2023 and 2022, is as follows: In thousands Banking Insurance Total 2023 Interest income and other income from external customers $ 53,558 $ 4,742 $ 58,300 Interest expense 2,040 — 2,040 Depreciation and amortization expense 1,312 422 1,734 Income before income taxes 22,401 1,075 23,476 Total assets 2,358,549 19,602 2,378,151 Capital expenditures 100 6 106 2022 Interest income and other income from external customers $ 45,300 $ 4,008 $ 49,308 Interest expense 1,898 18 1,916 Depreciation and amortization expense 1,493 341 1,834 Income before income taxes 18,162 942 19,104 Total assets 2,663,184 19,978 2,683,162 Capital expenditures 703 17 720 Segment information for the three month periods ended June 30, 2023 and 2022, is as follows: In thousands Banking Insurance Total 2023 Interest income and other income from external customers $ 26,567 $ 2,840 $ 29,407 Interest expense 1,223 — 1,223 Depreciation and amortization expense 639 212 851 Income before income taxes 11,109 946 12,055 Total assets 2,358,549 19,602 2,378,151 Capital expenditures 48 — 48 2022 Interest income and other income from external customers $ 23,964 $ 2,808 $ 26,772 Interest expense 880 12 892 Depreciation and amortization expense 745 210 955 Income before income taxes 9,806 1,068 10,874 Total assets 2,663,184 19,978 2,683,162 Capital expenditures 383 6 389

Securities

Securities	6 Months Ended
	Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Securities	Securities Amortized cost and fair value of securities at June 30, 2023, and December 31, 2022, were as follows: In thousands Amortized Gross Gross Fair SECURITIES AVAILABLE FOR SALE June 30, 2023 U.S. Government and agencies $ 228,489 $ — $ 29,659 $ 198,830 Mortgage-backed securities 271,698 — 33,408 238,290 State and municipal — — — — Corporate bonds 18,120 — 2,988 15,132 $ 518,307 $ — $ 66,055 $ 452,252 December 31, 2022 U.S. Government and agencies $ 241,467 $ — $ 30,468 $ 210,999 Mortgage-backed securities 327,535 342 32,159 295,718 State and municipal 15,235 196 196 15,235 Corporate bonds 33,404 15 1,817 31,602 $ 617,641 $ 553 $ 64,640 $ 553,554 Amortized Gross Gross Fair SECURITIES HELD TO MATURITY June 30, 2023 Mortgage-backed securities $ 2,864 $ — $ 186 $ 2,678 State and municipal 62,062 — 6,607 55,455 $ 64,926 $ — $ 6,793 $ 58,133 December 31, 2022 Mortgage-backed securities $ 3,279 $ — $ 194 $ 3,085 State and municipal 61,698 — 6,705 54,993 $ 64,977 $ — $ 6,899 $ 58,078 Fair value of equity securities with readily determinable fair values at June 30, 2023 and December 31, 2022, are as follows: In thousands Fair Value at January 1, 2023 Purchases Sales/reclassification Gains Losses on sales of securities Fair Value at June 30, 2023 June 30, 2023 CRA Mutual Fund $ 915 $ — $ — $ — $ — $ 915 Canapi Ventures SBIC Fund 206 — 206 — — — Stock in other banks 598 — 592 5 11 — $ 1,719 $ — $ 798 $ 5 $ 11 $ 915 In thousands Fair Value at January 1, 2022 Purchases Sales Gains Losses Fair Value at December 31, 2022 December 31, 2022 CRA Mutual Fund $ 1,036 $ — $ — $ — $ 121 $ 915 Canapi Ventures SBIC Fund — 206 — — — 206 Stock in other banks 1,573 — 811 13 177 598 $ 2,609 $ 206 $ 811 $ 13 $ 298 $ 1,719 The following table shows the Corporation’s investments’ gross unrealized and unrecognized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at June 30, 2023, and December 31, 2022: Less than 12 Months 12 Months or More Total In thousands Fair Unrealized Fair Unrealized Fair Unrealized SECURITIES AVAILABLE FOR SALE June 30, 2023 U.S. Government and agencies $ — $ — $ 198,830 $ 29,659 $ 198,830 $ 29,659 Mortgage-backed securities 14,612 891 223,678 32,517 238,290 33,408 State and municipal — — — — — — Corporate bonds 2,377 373 12,755 2,615 15,132 2,988 $ 16,989 $ 1,264 $ 435,263 $ 64,791 $ 452,252 $ 66,055 December 31, 2022 U.S. Government and agencies $ 25,426 $ 1,461 $ 185,573 $ 29,007 $ 210,999 $ 30,468 Mortgage-backed securities 221,249 19,362 63,145 12,797 284,394 32,159 State and municipal 6,229 196 — — 6,229 196 Corporate bonds 24,337 1,217 5,250 600 29,587 1,817 $ 277,241 $ 22,236 $ 253,968 $ 42,404 $ 531,209 $ 64,640 Less than 12 Months 12 Months or More Total Fair Unrecognized Fair Unrecognized Fair Unrecognized SECURITIES HELD TO MATURITY June 30, 2023 Mortgage-backed securities $ — $ — $ 2,678 $ 186 $ 2,678 $ 186 State and municipal 285 — 55,170 6,607 55,455 6,607 $ 285 $ — $ 57,848 $ 6,793 $ 58,133 $ 6,793 December 31, 2022 Mortgage-backed securities $ 3,085 $ 194 $ — $ — $ 3,085 $ 194 State and municipal 38,086 3,875 16,907 2,830 54,993 6,705 $ 41,171 $ 4,069 $ 16,907 $ 2,830 $ 58,078 $ 6,899 All mortgage-backed security investments are government sponsored enterprise (GSE) pass-through instruments issued by the Federal National Mortgage Association (FNMA), Government National Mortgage Association (GNMA) or Federal Home Loan Mortgage Corporation (FHLMC), which guarantee the timely payment of principal on these investments. The Corporation adopted ASU 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” on January 1, 2023 and did not record an allowance for credit losses on its investment securities during the quarter ended June 30, 2023. The Corporation regularly reviews debt securities for expected credit loss using both qualitative and quantitative criteria, as necessary, based on the composition of the portfolio at period end. Management sells securities from its available for sale portfolio in an effort to manage and allocate the portfolio. Amortized cost and fair value at June 30, 2023, 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 $ — $ — $ 285 $ 285 Over 1 year through 5 years 161,885 144,664 380 359 Over 5 years through 10 years 80,151 65,766 17,005 15,738 Over 10 years 4,573 3,532 44,392 39,073 Mortgage-backed securities 271,698 238,290 2,864 2,678 $ 518,307 $ 452,252 $ 64,926 $ 58,133 The proceeds from sales of securities and the associated gains and losses are listed below: Three Months Ended June 30, Six Months Ended June 30, In thousands 2023 2022 2023 2022 Proceeds $ 32,235 $ — $ 79,215 $ — Gross gains 15 — 243 — Gross losses 561 — 982 — At June 30, 2023, and December 31, 2022, securities with a carrying value of $247,854,000 and $342,180,000, 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	6 Months Ended
	Jun. 30, 2023
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 as of June 30, 2023, and December 31, 2022: In thousands June 30, 2023 December 31, 2022 Commercial and industrial $ 158,537 $ 178,762 Commercial real estate 873,787 821,805 Commercial real estate construction 73,951 80,470 Residential mortgage 372,819 362,098 Home equity lines of credit 85,019 84,141 Consumer 9,704 11,334 Total Loans $ 1,573,817 $ 1,538,610 The following table presents nonaccrual loans as of June 30, 2023, and December 31, 2022: In thousands June 30, 2023 December 31, 2022 Commercial and industrial $ 744 $ 781 Commercial real estate 1,601 1,873 Commercial real estate construction — — Residential mortgage 343 — Home equity lines of credit 202 — $ 2,890 $ 2,654 Consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process at June 30, 2023 and December 31, 2022, totaled $569,000 and $1,101,000, respectively. No additional funds are committed to be advanced in connection with individually evaluated loans. Loan Modifications On January 1, 2023, the Corporation adopted the accounting guidance in ASU 2022-02, which eliminates the recognition and measurement of troubled debt restructurings (TDRs). Due to the removal of the TDR designation, 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, and combinations of the above. Therefore, the disclosures related to loan restructurings are only for modifications that directly affect cash flows. As of June 30, 2023, the Corporation had no modified loans or any commitments to lend any additional funds on modified loans. As of June 30, 2023, the Corporation had no loans that defaulted during the period and 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 In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments”, universally referred to as Current Expected Credit Loss (CECL). The amendments in this ASU, among other things, require the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today are still permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. In addition, the ASU amends the accounting for credit losses on debt securities and purchased financial assets with credit deterioration. For smaller reporting companies, such as the Corporation, this standard (Topic 326) was effective as of January 1, 2023. The Corporation maintains an allowance for credit losses (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 Corporation develops and documents a systematic ACL methodology based on the following portfolio segments: 1) Commercial and Industrial, 2) Commercial Real Estate, 3) Commercial Real Estate Construction, 4) Residential Mortgage, and 5) Home Equity Lines of Credit. The Corporation’s loan portfolio is segmented by loan types that have similar risk characteristics and behave similarly during economic cycles. The segmentation in the CECL model is different from the segmentation in the Incurred Loss Model, however there was minimal impact on the presentation of the financial statement disclosures. The following is a discussion of the key risks by portfolio segment that management assesses in preparing the ACL. Commercial and Industrial Lending — The Corporation originates commercial and industrial loans primarily to businesses located in its primary market area and surrounding areas. These loans are used for various business purposes which include short-term loans and lines of credit to finance machinery and equipment purchases, inventory, and accounts receivable. Generally, the maximum term for loans extended on machinery and equipment is based on the projected useful life of such machinery and equipment. Most business lines of credit are written on demand and may be renewed annually. Commercial and industrial loans are generally secured with short-term assets; however, in many cases, additional collateral such as real estate is provided as additional security for the loan. Loan-to-value maximum values have been established by the Corporation and are specific to the type of collateral. Collateral values may be determined using invoices, inventory reports, accounts receivable aging reports, collateral appraisals, etc. In underwriting commercial and industrial loans, an analysis is performed to evaluate the borrower’s character and capacity to repay the loan, the adequacy of the borrower’s capital and collateral, as well as the conditions affecting the borrower. Evaluation of the borrower’s past, present and future cash flows is also an important aspect of the Corporation’s analysis. Commercial loans generally present a higher level of risk than other types of loans due primarily to the effect of general economic conditions. Commercial Real Estate Lending — The Corporation engages in commercial real estate lending in its primary market area and surrounding areas. The Corporation’s commercial loan portfolio is secured primarily by commercial retail space, office buildings, and hotels. Generally, commercial real estate loans have terms that do not exceed 20 years, have loan-to-value ratios of up to 80% of the appraised value of the property, and are typically secured by personal guarantees of the borrowers. In underwriting these loans, the Corporation performs a thorough analysis of the financial condition of the borrower, the borrower’s credit history, and the reliability and predictability of the cash flow generated by the property securing the loan. Appraisals on properties securing commercial real estate loans originated by the Corporation are performed by independent appraisers. Commercial real estate loans generally present a higher level of risk than other types of loans due primarily to the effect of general economic conditions and the complexities involved in valuing the underlying collateral. Commercial Real Estate Construction Lending — The Corporation engages in commercial real estate construction lending in its primary market area and surrounding areas. The Corporation’s commercial real estate construction lending consists of commercial and residential site development loans, as well as commercial building construction and residential housing construction loans. The Corporation’s commercial real estate construction loans are generally secured with the subject property. Terms of construction loans depend on the specifics of the project, such as estimated absorption rates, estimated time to complete, etc. In underwriting commercial real estate construction loans, the Corporation performs a thorough analysis of the financial condition of the borrower, the borrower’s credit history, and the reliability and predictability of the cash flow generated by the project using feasibility studies, market data, etc. Appraisals on properties securing commercial real estate construction loans originated by the Corporation are performed by independent appraisers. Commercial real estate construction loans generally present a higher level of risk than other types of loans due primarily to the effect of general economic conditions and the uncertainties surrounding total construction costs. Residential Mortgage Lending — One-to-four family residential mortgage loan originations, including home equity closed-end loans, are generated by the Corporation’s marketing efforts, its present customers, walk-in customers, and referrals. These loans originate primarily within the Corporation’s market area or with customers primarily from the market area. The Corporation offers fixed-rate and adjustable-rate mortgage loans with terms up to a maximum of 30 years for both permanent structures and those under construction. The Corporation’s one-to-four family residential mortgage originations are secured primarily by properties located in its primary market area and surrounding areas. The majority of the Corporation’s residential mortgage loans originate with a loan-to-value of 80% or less. Loans in excess of 80% are required to have private mortgage insurance. In underwriting one-to-four family residential real estate loans, the Corporation evaluates both the borrower’s financial ability to repay the loan as agreed and the value of the property securing the loan. Properties securing real estate loans made by the Corporation are appraised by independent appraisers. The Corporation generally requires borrowers to obtain an attorney’s title opinion or title insurance, as well as fire and property insurance (including flood insurance, if necessary) in an amount not less than the amount of the loan. The Corporation has not engaged in subprime residential mortgage originations. Residential mortgage loans are subject to risk due primarily to general economic conditions, as well as periods of weak housing markets. Home Equity Lines of Credit Lending — The Corporation originates home equity lines of credit primarily within the Corporation’s market area or with customers primarily from the market area. Home equity lines of credit are generated by the Corporation’s marketing efforts, its present customers, walk-in customers, and referrals. Home equity lines of credit are secured by the borrower’s primary residence with a maximum loan-to-value of 90% and a maximum term of 20 years. In underwriting home equity lines of credit, the Corporation evaluates both the value of the property securing the loan and the borrower’s financial ability to repay the loan as agreed. The ability to repay is determined by the borrower’s employment history, current financial condition, and credit background. Home equity lines of credit generally present a moderate level of risk due primarily to general economic conditions, as well as periods of weak housing markets. Junior liens inherently have more credit risk by virtue of the fact that another financial institution may have a higher security position in the case of foreclosure liquidation of collateral to extinguish the debt. Generally, foreclosure actions could become more prevalent if the real estate markets are weak and property values deteriorate. Consumer Lending — The Corporation offers a variety of secured and unsecured consumer loans, including those for vehicles and mobile homes and loans secured by savings deposits. These loans originate primarily within the Corporation’s market area or with customers primarily from the market area. Consumer loan terms vary according to the type and value of collateral and the creditworthiness of the borrower. In underwriting consumer loans, a thorough analysis of the borrower’s financial ability to repay the loan as agreed is performed. The ability to repay is determined by the borrower’s employment history, current financial condition, and credit background. Consumer loans may entail greater credit risk than residential mortgage loans or home equity lines of credit, particularly in the case of consumer loans which are unsecured or are secured by rapidly depreciable assets such as automobiles or recreational equipment. In such cases, any repossessed collateral for a defaulted consumer loan may not provide an adequate source of repayment of the outstanding loan balance as a result of the greater likelihood of damage, loss or depreciation. In addition, consumer loan collections are dependent on the borrower’s continuing financial stability, and thus are more likely to be affected by adverse personal circumstances. Furthermore, the application of various federal and state laws, including bankruptcy and insolvency laws, may limit the amount which can be recovered on such loans. Credit Quality Indicators: The Corporation’s portfolio grading analysis estimates the capability of the borrower to repay the contractual obligations of the loan agreements as scheduled or at all. The Corporation’s internal credit risk grading system is based on debt service coverage, collateral values and other subjective factors. Mortgage and consumer loans are defaulted to a pass grade until a loan migrates to past due status. Special Mention – Considered “Other Assets Especially Mentioned”, these loans are currently protected, but are potentially weak. Loans in this rating category constitute an undue and unwarranted credit risk, but not to the point of justifying a classification of substandard. The credit risk may be relatively minor, yet constitutes an unwarranted risk in light of the circumstances surrounding a specific loan. Substandard – Loans in this category are inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified must have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected. Loss potential, while existing in the aggregate amount of substandard assets, does not have to exist in individual loans classified as substandard. Doubtful – Loans in this category have all the weaknesses inherent in one classified substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. The possibility of loss is extremely high, but because of certain important and reasonable specific pending factors which may work to strengthen the credit, its classification as an estimated loss is deferred until its more exact status may be determined. Pending factors include proposed merger, acquisition, or liquidation procedures, capital injection, perfecting liens on additional collateral, and refinancing plans. Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered to be pass-related loans. The following table presents loan balances by year of origination and internally assigned risk rating for ACNB’s portfolio segments as of June 30, 2023: In thousands 2023 2022 2021 2020 2019 2018 and Prior Revolving Total Commercial and industrial Pass $ 3,061 $ 26,848 $ 39,180 $ 16,865 $ 14,949 $ 25,763 $ 26,949 $ 153,615 Special Mention 118 388 344 514 174 613 1,387 3,538 Substandard 8 19 — 20 13 820 504 1,384 Doubtful — — — — — — — — Total Commercial and industrial $ 3,187 $ 27,255 $ 39,524 $ 17,399 $ 15,136 $ 27,196 $ 28,840 $ 158,537 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 29 $ — $ 29 Commercial real estate Pass $ 72,354 $ 147,795 $ 144,506 $ 67,743 $ 72,227 $ 321,050 $ 14,273 $ 839,948 Special Mention 174 4,781 1,382 1,548 4,922 15,107 686 28,600 Substandard — — — — 544 4,695 — 5,239 Doubtful — — — — — — — — Total Commercial real estate $ 72,528 $ 152,576 $ 145,888 $ 69,291 $ 77,693 $ 340,852 $ 14,959 $ 873,787 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Commercial real estate construction Pass $ 9,045 $ 43,769 $ 7,420 $ 1,016 $ 342 $ 3,781 $ 7,251 $ 72,624 Special Mention — 477 — 93 — 757 — 1,327 Substandard — — — — — — — — Doubtful — — — — — — — — Total Commercial real estate construction $ 9,045 $ 44,246 $ 7,420 $ 1,109 $ 342 $ 4,538 $ 7,251 $ 73,951 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Residential mortgage Pass $ 33,241 $ 75,302 $ 57,348 $ 32,870 $ 20,680 $ 146,279 $ 289 $ 366,009 Special Mention 480 84 713 412 708 3,438 — 5,835 Substandard — — — — — 975 — 975 Doubtful — — — — — — — — Total Residential Mortgage $ 33,721 $ 75,386 $ 58,061 $ 33,282 $ 21,388 $ 150,692 $ 289 $ 372,819 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Home equity lines of credit Pass $ 939 $ 40 $ — $ — $ 99 $ 4,515 $ 78,107 $ 83,700 Special Mention — — — — — 36 782 818 Substandard — — — — — 501 — 501 Doubtful — — — — — — — — Total Home equity lines of credit $ 939 $ 40 $ — $ — $ 99 $ 5,052 $ 78,889 $ 85,019 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Consumer Pass $ 1,389 $ 3,130 $ 971 $ 740 $ 362 $ 1,331 $ 1,755 $ 9,678 Special Mention — — — — — — — — Substandard — — — — — — 26 26 Doubtful — — — — — — — — Total Consumer $ 1,389 $ 3,130 $ 971 $ 740 $ 362 $ 1,331 $ 1,781 $ 9,704 Year-to-date gross charge-offs $ 5 $ 62 $ 32 $ 7 $ 16 $ 48 $ — $ 170 Total Portfolio loans Pass $ 120,029 $ 296,884 $ 249,425 $ 119,234 $ 108,659 $ 502,719 $ 128,624 $ 1,525,574 Special Mention 772 5,730 2,439 2,567 5,804 19,951 2,855 40,118 Substandard 8 19 — 20 557 6,991 530 8,125 Doubtful — — — — — — — — Total Portfolio loans $ 120,809 $ 302,633 $ 251,864 $ 121,821 $ 115,020 $ 529,661 $ 132,009 $ 1,573,817 Year-to-date gross charge-offs $ 5 $ 62 $ 32 $ 7 $ 16 $ 77 $ — $ 199 The following table presents the recorded investment in loan classes by internally assigned risk ratings and loan classes by performing and nonperforming status as of December 31, 2022: In thousands Commercial Commercial Commercial Residential Home Equity Consumer Total December 31, 2022 Pass $ 173,437 $ 786,711 $ 78,652 $ 356,081 $ 83,044 $ 11,334 $ 1,489,259 Special Mention 4,035 29,540 1,818 5,803 712 — 41,908 Substandard 1,290 5,554 — 214 385 — 7,443 Doubtful — — — — — — — Loss — — — — — — — Total Portfolio Loans $ 178,762 $ 821,805 $ 80,470 $ 362,098 $ 84,141 $ 11,334 $ 1,538,610 Performing Loans $ 177,981 $ 819,932 $ 80,470 $ 361,393 $ 83,643 $ 11,334 $ 1,534,753 Nonperforming Loans 781 1,873 — 705 498 — 3,857 Total Portfolio Loans $ 178,762 $ 821,805 $ 80,470 $ 362,098 $ 84,141 $ 11,334 $ 1,538,610 The following table presents loan balances by year of origination and performing and nonperforming status for ACNB’s portfolio segments as of June 30, 2023: In thousands 2023 2022 2021 2020 2019 2018 and Prior Revolving Total Commercial and industrial Performing $ 3,187 $ 27,255 $ 39,524 $ 17,399 $ 15,136 $ 26,956 $ 28,336 $ 157,793 Nonperforming — — — — — 240 504 744 Total Commercial and industrial 3,187 27,255 39,524 17,399 15,136 27,196 28,840 158,537 Commercial real estate Performing 72,528 152,576 145,888 69,291 77,369 339,575 14,959 872,186 Nonperforming — — — — 324 1,277 — 1,601 Total Commercial real estate 72,528 152,576 145,888 69,291 77,693 340,852 14,959 873,787 Commercial real estate construction Performing 9,045 44,246 7,420 1,109 342 4,538 7,251 73,951 Nonperforming — — — — — — — — Total Commercial real estate construction 9,045 44,246 7,420 1,109 342 4,538 7,251 73,951 Residential mortgage Performing 33,721 75,386 58,061 33,282 21,388 149,704 289 371,831 Nonperforming — — — — — 988 — 988 Total Residential Mortgage 33,721 75,386 58,061 33,282 21,388 150,692 289 372,819 Home equity lines of credit Performing 939 40 — — 99 4,726 78,889 84,693 Nonperforming — — — — — 326 — 326 Total Home equity lines of credit 939 40 — — 99 5,052 78,889 85,019 Consumer Performing 1,389 3,130 971 740 362 1,331 1,781 9,704 Nonperforming — — — — — — — — Total Consumer 1,389 3,130 971 740 362 1,331 1,781 9,704 Total Portfolio loans Performing 120,809 302,633 251,864 121,821 114,696 526,830 131,505 1,570,158 Nonperforming — — — — 324 2,831 504 3,659 Total Portfolio loans $ 120,809 $ 302,633 $ 251,864 $ 121,821 $ 115,020 $ 529,661 $ 132,009 $ 1,573,817 The following tables present the classes of the loan portfolio summarized by the past due status as of June 30, 2023, and December 31, 2022: In thousands 30–59 Days Past Due 60–89 Days >90 Days Total Past Current Total Loans Loans June 30, 2023 Commercial and industrial $ — $ 126 $ 161 $ 287 $ 158,250 $ 158,537 $ — Commercial real estate 419 198 — 617 873,170 873,787 — Commercial real estate construction 113 18 — 131 73,820 73,951 — Residential mortgage 47 — 988 1,035 371,784 372,819 645 Home equity lines of credit 596 123 124 843 84,176 85,019 124 Consumer 63 27 — 90 9,614 9,704 — Total Loans $ 1,238 $ 492 $ 1,273 $ 3,003 $ 1,570,814 $ 1,573,817 $ 769 In thousands 30–59 Days Past Due 60–89 Days >90 Days Total Past Current Total Loans Loans December 31, 2022 Commercial and industrial $ 287 $ — $ 162 $ 449 $ 178,313 $ 178,762 $ — Commercial real estate 2,026 350 255 2,631 819,174 821,805 — Commercial real estate construction 24 — — 24 80,446 80,470 — Residential mortgage 2,969 970 705 4,644 357,454 362,098 705 Home equity lines of credit 438 117 498 1,053 83,088 84,141 498 Consumer 155 80 — 235 11,099 11,334 — Total Loans $ 5,899 $ 1,517 $ 1,620 $ 9,036 $ 1,529,574 $ 1,538,610 $ 1,203 The following table summarizes information relative to individually evaluated loans by loan portfolio class as of June 30, 2023 and December 31, 2022: Individually Evaluated Loans with Allowance Individually Evaluated Loans with In thousands Recorded Investment Related Recorded Investment Related June 30, 2023 Commercial and industrial $ 744 $ 647 $ — $ — Commercial real estate 324 184 1,277 — Commercial real estate construction — — — — Residential mortgage — — 343 — Home equity lines of credit — — 202 — $ 1,068 $ 831 $ 1,822 $ — December 31, 2022 Commercial and industrial $ 781 $ 628 $ — $ — Commercial real estate 350 192 4,984 — Commercial real estate construction — — — — Residential mortgage — — — — Home equity lines of credit — — — — $ 1,131 $ 820 $ 4,984 $ — A loan is considered individually evaluated when it is transferred to nonaccrual status. During the three and six months ended June 30, 2023, no material amount of interest income was recognized on individually evaluated loans subsequent to their classification as individually evaluated loans. The adoption of Topic 326 resulted in certain acquired and purchase credit impaired loans being added to the individually evaluated loan category and a prior troubled debt restructured loan was moved to performing status due to loan repayment history. The following table presents the amortized cost basis of individually evaluated loans as of June 30, 2023. 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. June 30, 2023 Type of Collateral In thousands Business Assets Real Estate Commercial and industrial $ 744 $ — Commercial real estate — 1,601 Commercial real estate construction — — Residential mortgage — 343 Home equity lines of credit — 202 Consumer — — Total $ 744 $ 2,146 The following tables summarize the allowance for credit losses and allowance for loan losses and recorded investment in loans receivable: In thousands Commercial Commercial Commercial Residential Home Equity Consumer Unallocated Total AS OF AND FOR THE PERIOD ENDED JUNE 30, 2023 Allowance for Credit Losses Beginning balance - April 1, 2023 $ 2,105 $ 11,032 $ 2,465 $ 3,366 $ 379 $ 138 $ — $ 19,485 Charge-offs — — — — — (82) — (82) Recoveries 9 — — — — 9 — 18 Provisions (credits) (173) 696 (580) (291) 9 66 — (273) Ending balance - June 30, 2023 $ 1,941 $ 11,728 $ 1,885 $ 3,075 $ 388 $ 131 $ — $ 19,148 Beginning balance - January 1, 2023 $ 2,848 $ 10,016 $ 1,000 $ 3,029 $ 347 $ 376 $ 245 $ 17,861 Impact of CECL adoption (762) 1,106 1,347 297 17 (142) (245) $ 1,618 Charge-offs (29) — — — — (170) — (199) Recoveries 10 — — — — 34 — 44 Provisions (credits) (126) 606 (462) (251) 24 33 — (176) Ending balance - June 30, 2023 $ 1,941 $ 11,728 $ 1,885 $ 3,075 $ 388 $ 131 $ — $ 19,148 Ending balance: individually evaluated for impairment $ 647 $ 184 $ — $ — $ — $ — $ — $ 831 Ending balance: collectively evaluated for impairment $ 1,294 $ 11,544 $ 1,885 $ 3,075 $ 388 $ 131 $ — $ 18,317 Loans Receivable Ending balance $ 158,537 $ 873,787 $ 73,951 $ 372,819 $ 85,019 $ 9,704 $ — $ 1,573,817 Ending balance: individually evaluated for impairment $ 744 $ 1,601 $ — $ 343 $ 202 $ — $ — $ 2,890 Ending balance: collectively evaluated for impairment $ 157,793 $ 872,186 $ 73,951 $ 372,476 $ 84,817 $ 9,704 $ — $ 1,570,927 AS OF AND FOR THE PERIOD ENDED JUNE 30, 2022 Allowance for Loan Losses Beginning balance - April 1, 2022 $ 3,280 $ 10,625 $ 666 $ 3,082 $ 426 $ 385 $ 499 $ 18,963 Charge-offs (34) — — (3) — (1) — (38) Recoveries 5 — — 5 — 8 — 18 Provisions (credits) (135) 214 152 115 (30) 35 (351) — Ending balance - June 30, 2022 $ 3,116 $ 10,839 $ 818 $ 3,199 $ 396 $ 427 $ 148 $ 18,943 Beginning balance - January 1, 2022 $ 3,176 $ 10,716 $ 616 $ 3,235 $ 501 $ 408 $ 381 $ 19,033 Charge-offs (97) — — (3) — (20) — (120) Recoveries 15 — — 5 — 10 — 30 Provisions (credits) 22 123 202 (38) (105) 29 (233) — Ending balance - June 30, 2022 $ 3,116 $ 10,839 $ 818 $ 3,199 $ 396 $ 427 $ 148 $ 18,943 Ending balance: individually evaluated for impairment $ 742 $ 832 $ — $ — $ — $ — $ — $ 1,574 Ending balance: collectively evaluated for impairment $ 2,374 $ 10,007 $ 818 $ 3,199 $ 396 $ 427 $ 148 $ 17,369 Loans Receivable Ending balance $ 177,115 $ 818,117 $ 69,120 $ 348,475 $ 83,589 $ 13,376 $ — $ 1,509,792 Ending balance: individually evaluated for impairment $ 895 $ 7,000 $ — $ — $ — $ — $ — $ 7,895 Ending balance: collectively evaluated for impairment $ 176,220 $ 811,117 $ 69,120 $ 348,475 $ 83,589 $ 13,376 $ — $ 1,501,897 In thousands Commercial Commercial Commercial Residential Home Equity Consumer Unallocated Total AS OF DECEMBER 31, 2022 Allowance for Loan Losses Ending balance $ 2,848 $ 10,016 $ 1,000 $ 3,029 $ 347 $ 376 $ 245 $ 17,861 Ending balance: individually evaluated for impairment $ 628 $ 192 $ — $ — $ — $ — $ — $ 820 Ending balance: collectively evaluated for impairment $ 2,220 $ 9,824 $ 1,000 $ 3,029 $ 347 $ 376 $ 245 $ 17,041 Loans Receivable Ending balance $ 178,762 $ 821,805 $ 80,470 $ 362,098 $ 84,141 $ 11,334 $ — $ 1,538,610 Ending balance: individually evaluated for impairment $ 781 $ 5,334 $ — $ — $ — $ — $ — $ 6,115 Ending balance: collectively evaluated for impairment $ 177,981 $ 816,471 $ 80,470 $ 362,098 $ 84,141 $ 11,334 $ — $ 1,532,495

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements 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. Fair value measurement and disclosure guidance defines fair value as the 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 and disclosure guidance provides a list of factors that a reporting entity should evaluate to determine whether there has been a significant decrease in the volume and level of activity for the asset or liability in relation to normal market activity for the asset or liability. When the reporting entity concludes there has been a significant decrease in the volume and level of activity for the asset or liability, further analysis of the information from that market is needed and significant adjustments to the related prices may be necessary to estimate fair value in accordance with fair value measurement and disclosure guidance. This guidance further clarifies that when there has been a significant decrease in the volume and level of activity for the asset or liability, some transactions may not be orderly. In those situations, the entity must evaluate the weight of the evidence to determine whether the transaction is orderly. The guidance provides a list of circumstances that may indicate that a transaction is not orderly. A transaction price that is not associated with an orderly transaction is given little, if any, weight when estimating fair value. Fair value measurement and disclosure guidance 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 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. For assets measured at fair value, the fair value measurements by level within the fair value hierarchy, and the basis of measurement used at June 30, 2023, and December 31, 2022, are as follows: June 30, 2023 In thousands Basis Total Level 1 Level 2 Level 3 U.S. Government and agencies $ 198,830 $ — $ 198,830 $ — Mortgage-backed securities 238,290 — 238,290 — State and municipal — — — — Corporate bonds 15,132 — 15,132 — Total securities available for sale Recurring $ 452,252 $ — $ 452,252 $ — Equity securities with readily determinable fair values Recurring $ 915 $ 915 $ — $ — Individually evaluated loans Nonrecurring $ 237 $ — $ — $ 237 December 31, 2022 In thousands Basis Total Level 1 Level 2 Level 3 U.S. Government and agencies $ 210,999 $ — $ 210,999 $ — Mortgage-backed securities 295,718 — 295,718 — State and municipal 15,235 — 15,235 — Corporate bonds 31,602 — 31,602 — Total securities available for sale Recurring $ 553,554 $ — $ 553,554 $ — Equity securities with readily determinable fair values Recurring $ 1,719 $ 1,719 $ — $ — Collateral dependent impaired loans Nonrecurring $ 3,773 $ — $ — $ 3,773 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: Quantitative Information about Level 3 Fair Value Measurements Dollars in thousands Fair Value Estimate Valuation Technique Unobservable Input Range Weighted Average June 30, 2023 Individually evaluated loans $ 237 Appraisal of collateral (a) Appraisal adjustments (b) (10) – (50)% (91)% December 31, 2022 Impaired loans $ 3,773 Appraisal of collateral (a) Appraisal adjustments (b) (10) – (50)% (48)% (a) 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. (b) 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. 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 presents the carrying amount, fair value, and placement in the fair value hierarchy of the Corporation’s financial instruments as of June 30, 2023: June 30, 2023 In thousands Carrying Amount Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 24,898 $ 24,898 $ 6,620 $ 18,278 $ — Interest-bearing deposits with banks 59,145 59,145 59,145 — — Equity securities with readily determinable fair values 915 915 915 — — Debt securities available for sale 452,252 452,252 — 452,252 — Securities held to maturity 64,926 58,133 — 58,133 — Loans held for sale — — — — — Loans, less allowance for credit losses 1,554,669 1,485,588 — — 1,485,588 Accrued interest receivable 6,702 6,702 — 6,702 — Restricted investment in bank stocks 4,877 N/A — N/A — Financial liabilities: Demand deposits and savings 1,752,296 1,752,296 — 1,752,296 — Time deposits 211,458 197,480 — 197,480 — Short-term sweep accounts 26,703 26,453 — 26,453 — Short & long-term borrowings 85,000 85,350 — 85,350 — Trust preferred and subordinated debt 21,000 17,962 — 17,962 — Accrued interest payable 291 291 — 291 — Off-balance sheet financial instruments — — — — — The following presents the carrying amount, fair value, and placement in the fair value hierarchy of the Corporation’s financial instruments as of December 31, 2022: December 31, 2022 In thousands Carrying Amount Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 40,067 $ 40,067 $ 6,977 $ 33,090 $ — Interest-bearing deposits with banks 128,094 128,094 128,094 — — Equity securities with readily determinable fair values 1,719 1,719 1,719 — — Debt securities available for sale 553,554 553,554 — 553,554 — Securities held to maturity 64,977 58,078 — 58,078 — Loans held for sale 123 123 — 123 — Loans, less allowance for credit losses 1,520,749 1,458,556 — — 1,458,556 Accrued interest receivable 6,915 6,915 — 6,915 — Restricted investment in bank stocks 1,629 1,629 — 1,629 — Financial liabilities: Demand deposits and savings 1,905,845 1,905,845 — 1,905,845 — Time deposits 293,130 276,182 — 276,182 — Short-term sweep accounts 41,954 41,954 — 41,954 — Short & long-term borrowings — — — — — Trust preferred and subordinated debt 21,000 18,648 — 18,648 — Accrued interest payable 51 51 — 51 — Off-balance sheet financial instruments — — — — —

Deposits

Deposits	6 Months Ended
	Jun. 30, 2023
Deposits [Abstract]
Deposits	Deposits The following table presents the composition of deposits at the dates presented: In thousands June 30, 2023 December 31, 2022 Noninterest-bearing demand $ 569,729 $ 595,049 Interest-bearing checking, savings, and money markets 1,182,567 1,310,796 Certificates of deposit of $250,000 or less 177,475 241,562 Certificates of deposit greater than $250,000 33,983 51,568 Total $ 1,963,754 $ 2,198,975 All deposit accounts are insured by the FDIC up to the maximum amount allowed by law. The Dodd-Frank Act, signed into law on July 21, 2010, makes permanent the $250,000 limit for federal deposit insurance and the coverage limit applies per depositor, per insured depository institution for each account ownership. Certificates of deposit maturing as of June 30, 2023 are as follows: In thousands 3 months or less $ 54,402 Over 3 months through 12 months 103,444 Over 1 year through 3 years 47,242 Over 3 years 6,370 Total $ 211,458

Borrowings

Borrowings	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Borrowings	Borrowings The Corporation had short-term debt outstanding as follows: In thousands June 30, 2023 December 31, 2022 Securities sold under repurchase agreements $ 26,703 $ 41,954 FHLB advance 25,000 — $ 51,703 $ 41,954 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. The short-term FHLB advance matures in 2023 with a fixed interest rate of 5.63%. The Corporation had long-term debt outstanding as follows: In thousands June 30, 2023 December 31, 2022 FHLB advances $ 60,000 $ — Trust preferred subordinated debt 6,000 6,000 Subordinated debt 15,000 15,000 $ 81,000 $ 21,000 The long-term FHLB advances mature between 2027 and 2028 and have a weighted average rate of 4.40%, with a prepayment penalty. The advances are collateralized by the assets defined in the security agreement and FHLB capital stock. Based on this collateral and ACNB’s holding of FHLB stock, ACNB is eligible to borrow up to $813,925,000, of which $728,692,000 is available at June 30, 2023. The trust preferred subordinated debt is comprised of debt securities issued by Frederick County Bancorp, Inc. (FCBI) in December 2006 and assumed by ACNB Corporation through the acquisition. FCBI completed the private placement of an aggregate of $6,000,000 of trust preferred securities. The interest rate on the subordinated debentures is currently adjusted quarterly to 163 basis points over three-month LIBOR. The debenture has a provision for when LIBOR is no longer available. On June 15, 2023, the most recent interest rate reset date, the interest rate was adjusted to 7.18% for the period ending September 14, 2023. 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 proceeds were transferred to FCBI as trust preferred subordinated debt under the same terms and conditions. The Corporation then contributed the full amount to the Bank in the form of Tier 1 capital. The Corporation has, through various contractual agreements, fully and unconditionally guaranteed all of the trust obligations with respect to the capital securities. On March 30, 2021, ACNB Corporation (the Company) entered into Subordinated Note Purchase Agreements (Purchase Agreements) with certain institutional accredited investors and qualified institutional buyers (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 Notes). The Notes will 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 Secured Overnight Financing Rate (SOFR) plus 329 basis points. As provided in the Notes, the interest rate on the Notes during the applicable floating rate period may be determined based on a rate other than the 90-day average SOFR. The Notes were issued by the Company to the Purchasers at a price equal to 100% of their face amount. The Company used the net proceeds it received from the sale of the Notes to retire outstanding debt of the Company, repurchase issued and outstanding shares of the Company, support general corporate purposes, underwrite growth opportunities, create an interest reserve for the Notes, and downstream proceeds to ACNB Bank (the Bank), to be used by the Bank to continue to meet regulatory capital requirements, increase the regulatory lending ability of the Bank, and support the Bank’s organic growth initiatives. The 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.

New Accounting Pronouncements

New Accounting Pronouncements	6 Months Ended
	Jun. 30, 2023
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements	Recently issued but not effective Accounting Pronouncements ASU 2020-04 In March 2020, the FASB issued ASU 2020-04, “Reference Rate Reform (Topic 848)”. The ASU provided optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendment only applies to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of the reference rate reform. The ASU is effective as of March 12, 2020 through December 31, 2022. Furthermore, 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 Financial Conduct Authority (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 condition or results of operations.

New Accounting Pronouncements (

New Accounting Pronouncements (Policies)	6 Months Ended
	Jun. 30, 2023
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements	Recently issued but not effective Accounting Pronouncements ASU 2020-04 In March 2020, the FASB issued ASU 2020-04, “Reference Rate Reform (Topic 848)”. The ASU provided optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendment only applies to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of the reference rate reform. The ASU is effective as of March 12, 2020 through December 31, 2022. Furthermore, 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 Financial Conduct Authority (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 condition or results of operations.

Organization, Consolidation and

Organization, Consolidation and Presentation of Financial Statements (Tables)	6 Months Ended
	Jun. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Impact of Topic 326	The following table illustrates the impact of Topic 326: January 1, 2023 In thousands As Reported Under Topic 326 Pre Topic 326 Impact of Topic 326 Adoption Allowance for Credit Losses on Loans: Commercial and industrial $ (2,086) $ (2,848) $ 762 Commercial real estate (11,122) (10,016) (1,106) Commercial real estate construction (2,347) (1,000) (1,347) Residential mortgage (3,326) (3,029) (297) Home equity lines of credit (364) (347) (17) Consumer (234) (376) 142 Unallocated — (245) 245 Allowance for credit losses on loans $ (19,479) $ (17,861) $ (1,618) Assets: Total Loans, net of allowance for credit losses $ 1,519,131 $ 1,520,749 $ 1,618 Net deferred tax asset 18,452 17,718 734 Liabilities: Allowance for unfunded commitments 1,735 92 1,643 Equity: Retained earnings 242,674 245,042 2,368

Retirement Benefits (Tables)

Retirement Benefits (Tables)	6 Months Ended
	Jun. 30, 2023
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 for the three and six month periods ended June 30 were as follows: Three Months Ended June 30, Six Months Ended June 30, In thousands 2023 2022 2023 2022 Service cost $ 124 $ 194 $ 248 $ 388 Interest cost 373 263 746 526 Expected return on plan assets (663) (784) (1,326) (1,568) Amortization of net loss 98 101 196 203 Net Periodic Benefit Income $ (68) $ (226) $ (136) $ (451)

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jun. 30, 2023
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 on Securities Pension Accumulated Other Ending Balance — December 31, 2022 $ (52,734) $ (5,278) $ (58,012) Beginning balance — January 1, 2023 $ (52,734) $ (5,278) $ (58,012) Amounts reclassified from accumulated other comprehensive loss, net of tax Unrealized loss on available for sale securities, net of tax (1,255) — (1,255) Realized losses on securities, net of tax 556 — 556 Amortization of unrealized losses on securities transferred to held to maturity, net of tax 487 — 487 Amortization of pension net loss, transition liability and prior service cost, net of tax — 172 172 Unrecognized pension net gain, net of tax — — — Net current period other comprehensive (loss) income (212) 172 (40) Ending Balance — June 30, 2023 $ (52,946) $ (5,106) $ (58,052)

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
	Jun. 30, 2023
Segment Reporting [Abstract]
Schedule of Segment Information	Segment information for the six month periods ended June 30, 2023 and 2022, is as follows: In thousands Banking Insurance Total 2023 Interest income and other income from external customers $ 53,558 $ 4,742 $ 58,300 Interest expense 2,040 — 2,040 Depreciation and amortization expense 1,312 422 1,734 Income before income taxes 22,401 1,075 23,476 Total assets 2,358,549 19,602 2,378,151 Capital expenditures 100 6 106 2022 Interest income and other income from external customers $ 45,300 $ 4,008 $ 49,308 Interest expense 1,898 18 1,916 Depreciation and amortization expense 1,493 341 1,834 Income before income taxes 18,162 942 19,104 Total assets 2,663,184 19,978 2,683,162 Capital expenditures 703 17 720 Segment information for the three month periods ended June 30, 2023 and 2022, is as follows: In thousands Banking Insurance Total 2023 Interest income and other income from external customers $ 26,567 $ 2,840 $ 29,407 Interest expense 1,223 — 1,223 Depreciation and amortization expense 639 212 851 Income before income taxes 11,109 946 12,055 Total assets 2,358,549 19,602 2,378,151 Capital expenditures 48 — 48 2022 Interest income and other income from external customers $ 23,964 $ 2,808 $ 26,772 Interest expense 880 12 892 Depreciation and amortization expense 745 210 955 Income before income taxes 9,806 1,068 10,874 Total assets 2,663,184 19,978 2,683,162 Capital expenditures 383 6 389

Securities (Tables)

Securities (Tables)	6 Months Ended
	Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Schedule of amortized cost and fair value of securities	Amortized cost and fair value of securities at June 30, 2023, and December 31, 2022, were as follows: In thousands Amortized Gross Gross Fair SECURITIES AVAILABLE FOR SALE June 30, 2023 U.S. Government and agencies $ 228,489 $ — $ 29,659 $ 198,830 Mortgage-backed securities 271,698 — 33,408 238,290 State and municipal — — — — Corporate bonds 18,120 — 2,988 15,132 $ 518,307 $ — $ 66,055 $ 452,252 December 31, 2022 U.S. Government and agencies $ 241,467 $ — $ 30,468 $ 210,999 Mortgage-backed securities 327,535 342 32,159 295,718 State and municipal 15,235 196 196 15,235 Corporate bonds 33,404 15 1,817 31,602 $ 617,641 $ 553 $ 64,640 $ 553,554 Amortized Gross Gross Fair SECURITIES HELD TO MATURITY June 30, 2023 Mortgage-backed securities $ 2,864 $ — $ 186 $ 2,678 State and municipal 62,062 — 6,607 55,455 $ 64,926 $ — $ 6,793 $ 58,133 December 31, 2022 Mortgage-backed securities $ 3,279 $ — $ 194 $ 3,085 State and municipal 61,698 — 6,705 54,993 $ 64,977 $ — $ 6,899 $ 58,078 Fair value of equity securities with readily determinable fair values at June 30, 2023 and December 31, 2022, are as follows: In thousands Fair Value at January 1, 2023 Purchases Sales/reclassification Gains Losses on sales of securities Fair Value at June 30, 2023 June 30, 2023 CRA Mutual Fund $ 915 $ — $ — $ — $ — $ 915 Canapi Ventures SBIC Fund 206 — 206 — — — Stock in other banks 598 — 592 5 11 — $ 1,719 $ — $ 798 $ 5 $ 11 $ 915 In thousands Fair Value at January 1, 2022 Purchases Sales Gains Losses Fair Value at December 31, 2022 December 31, 2022 CRA Mutual Fund $ 1,036 $ — $ — $ — $ 121 $ 915 Canapi Ventures SBIC Fund — 206 — — — 206 Stock in other banks 1,573 — 811 13 177 598 $ 2,609 $ 206 $ 811 $ 13 $ 298 $ 1,719
Schedule of unrealized losses and fair value	The following table shows the Corporation’s investments’ gross unrealized and unrecognized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at June 30, 2023, and December 31, 2022: Less than 12 Months 12 Months or More Total In thousands Fair Unrealized Fair Unrealized Fair Unrealized SECURITIES AVAILABLE FOR SALE June 30, 2023 U.S. Government and agencies $ — $ — $ 198,830 $ 29,659 $ 198,830 $ 29,659 Mortgage-backed securities 14,612 891 223,678 32,517 238,290 33,408 State and municipal — — — — — — Corporate bonds 2,377 373 12,755 2,615 15,132 2,988 $ 16,989 $ 1,264 $ 435,263 $ 64,791 $ 452,252 $ 66,055 December 31, 2022 U.S. Government and agencies $ 25,426 $ 1,461 $ 185,573 $ 29,007 $ 210,999 $ 30,468 Mortgage-backed securities 221,249 19,362 63,145 12,797 284,394 32,159 State and municipal 6,229 196 — — 6,229 196 Corporate bonds 24,337 1,217 5,250 600 29,587 1,817 $ 277,241 $ 22,236 $ 253,968 $ 42,404 $ 531,209 $ 64,640 Less than 12 Months 12 Months or More Total Fair Unrecognized Fair Unrecognized Fair Unrecognized SECURITIES HELD TO MATURITY June 30, 2023 Mortgage-backed securities $ — $ — $ 2,678 $ 186 $ 2,678 $ 186 State and municipal 285 — 55,170 6,607 55,455 6,607 $ 285 $ — $ 57,848 $ 6,793 $ 58,133 $ 6,793 December 31, 2022 Mortgage-backed securities $ 3,085 $ 194 $ — $ — $ 3,085 $ 194 State and municipal 38,086 3,875 16,907 2,830 54,993 6,705 $ 41,171 $ 4,069 $ 16,907 $ 2,830 $ 58,078 $ 6,899
Schedule of amortized cost and fair value by contractual maturity	Amortized cost and fair value at June 30, 2023, 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 $ — $ — $ 285 $ 285 Over 1 year through 5 years 161,885 144,664 380 359 Over 5 years through 10 years 80,151 65,766 17,005 15,738 Over 10 years 4,573 3,532 44,392 39,073 Mortgage-backed securities 271,698 238,290 2,864 2,678 $ 518,307 $ 452,252 $ 64,926 $ 58,133
Gain (Loss) on Securities	The proceeds from sales of securities and the associated gains and losses are listed below: Three Months Ended June 30, Six Months Ended June 30, In thousands 2023 2022 2023 2022 Proceeds $ 32,235 $ — $ 79,215 $ — Gross gains 15 — 243 — Gross losses 561 — 982 —

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2023
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 as of June 30, 2023, and December 31, 2022: In thousands June 30, 2023 December 31, 2022 Commercial and industrial $ 158,537 $ 178,762 Commercial real estate 873,787 821,805 Commercial real estate construction 73,951 80,470 Residential mortgage 372,819 362,098 Home equity lines of credit 85,019 84,141 Consumer 9,704 11,334 Total Loans $ 1,573,817 $ 1,538,610
Schedule of nonaccrual loans by loan portfolio class	The following table presents nonaccrual loans as of June 30, 2023, and December 31, 2022: In thousands June 30, 2023 December 31, 2022 Commercial and industrial $ 744 $ 781 Commercial real estate 1,601 1,873 Commercial real estate construction — — Residential mortgage 343 — Home equity lines of credit 202 — $ 2,890 $ 2,654
Schedule of classes of loan portfolio summarized by the aggregate risk rating	The following table presents loan balances by year of origination and internally assigned risk rating for ACNB’s portfolio segments as of June 30, 2023: In thousands 2023 2022 2021 2020 2019 2018 and Prior Revolving Total Commercial and industrial Pass $ 3,061 $ 26,848 $ 39,180 $ 16,865 $ 14,949 $ 25,763 $ 26,949 $ 153,615 Special Mention 118 388 344 514 174 613 1,387 3,538 Substandard 8 19 — 20 13 820 504 1,384 Doubtful — — — — — — — — Total Commercial and industrial $ 3,187 $ 27,255 $ 39,524 $ 17,399 $ 15,136 $ 27,196 $ 28,840 $ 158,537 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ 29 $ — $ 29 Commercial real estate Pass $ 72,354 $ 147,795 $ 144,506 $ 67,743 $ 72,227 $ 321,050 $ 14,273 $ 839,948 Special Mention 174 4,781 1,382 1,548 4,922 15,107 686 28,600 Substandard — — — — 544 4,695 — 5,239 Doubtful — — — — — — — — Total Commercial real estate $ 72,528 $ 152,576 $ 145,888 $ 69,291 $ 77,693 $ 340,852 $ 14,959 $ 873,787 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Commercial real estate construction Pass $ 9,045 $ 43,769 $ 7,420 $ 1,016 $ 342 $ 3,781 $ 7,251 $ 72,624 Special Mention — 477 — 93 — 757 — 1,327 Substandard — — — — — — — — Doubtful — — — — — — — — Total Commercial real estate construction $ 9,045 $ 44,246 $ 7,420 $ 1,109 $ 342 $ 4,538 $ 7,251 $ 73,951 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Residential mortgage Pass $ 33,241 $ 75,302 $ 57,348 $ 32,870 $ 20,680 $ 146,279 $ 289 $ 366,009 Special Mention 480 84 713 412 708 3,438 — 5,835 Substandard — — — — — 975 — 975 Doubtful — — — — — — — — Total Residential Mortgage $ 33,721 $ 75,386 $ 58,061 $ 33,282 $ 21,388 $ 150,692 $ 289 $ 372,819 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Home equity lines of credit Pass $ 939 $ 40 $ — $ — $ 99 $ 4,515 $ 78,107 $ 83,700 Special Mention — — — — — 36 782 818 Substandard — — — — — 501 — 501 Doubtful — — — — — — — — Total Home equity lines of credit $ 939 $ 40 $ — $ — $ 99 $ 5,052 $ 78,889 $ 85,019 Year-to-date gross charge-offs $ — $ — $ — $ — $ — $ — $ — $ — Consumer Pass $ 1,389 $ 3,130 $ 971 $ 740 $ 362 $ 1,331 $ 1,755 $ 9,678 Special Mention — — — — — — — — Substandard — — — — — — 26 26 Doubtful — — — — — — — — Total Consumer $ 1,389 $ 3,130 $ 971 $ 740 $ 362 $ 1,331 $ 1,781 $ 9,704 Year-to-date gross charge-offs $ 5 $ 62 $ 32 $ 7 $ 16 $ 48 $ — $ 170 Total Portfolio loans Pass $ 120,029 $ 296,884 $ 249,425 $ 119,234 $ 108,659 $ 502,719 $ 128,624 $ 1,525,574 Special Mention 772 5,730 2,439 2,567 5,804 19,951 2,855 40,118 Substandard 8 19 — 20 557 6,991 530 8,125 Doubtful — — — — — — — — Total Portfolio loans $ 120,809 $ 302,633 $ 251,864 $ 121,821 $ 115,020 $ 529,661 $ 132,009 $ 1,573,817 Year-to-date gross charge-offs $ 5 $ 62 $ 32 $ 7 $ 16 $ 77 $ — $ 199 The following table presents the recorded investment in loan classes by internally assigned risk ratings and loan classes by performing and nonperforming status as of December 31, 2022: In thousands Commercial Commercial Commercial Residential Home Equity Consumer Total December 31, 2022 Pass $ 173,437 $ 786,711 $ 78,652 $ 356,081 $ 83,044 $ 11,334 $ 1,489,259 Special Mention 4,035 29,540 1,818 5,803 712 — 41,908 Substandard 1,290 5,554 — 214 385 — 7,443 Doubtful — — — — — — — Loss — — — — — — — Total Portfolio Loans $ 178,762 $ 821,805 $ 80,470 $ 362,098 $ 84,141 $ 11,334 $ 1,538,610 Performing Loans $ 177,981 $ 819,932 $ 80,470 $ 361,393 $ 83,643 $ 11,334 $ 1,534,753 Nonperforming Loans 781 1,873 — 705 498 — 3,857 Total Portfolio Loans $ 178,762 $ 821,805 $ 80,470 $ 362,098 $ 84,141 $ 11,334 $ 1,538,610 The following table presents loan balances by year of origination and performing and nonperforming status for ACNB’s portfolio segments as of June 30, 2023: In thousands 2023 2022 2021 2020 2019 2018 and Prior Revolving Total Commercial and industrial Performing $ 3,187 $ 27,255 $ 39,524 $ 17,399 $ 15,136 $ 26,956 $ 28,336 $ 157,793 Nonperforming — — — — — 240 504 744 Total Commercial and industrial 3,187 27,255 39,524 17,399 15,136 27,196 28,840 158,537 Commercial real estate Performing 72,528 152,576 145,888 69,291 77,369 339,575 14,959 872,186 Nonperforming — — — — 324 1,277 — 1,601 Total Commercial real estate 72,528 152,576 145,888 69,291 77,693 340,852 14,959 873,787 Commercial real estate construction Performing 9,045 44,246 7,420 1,109 342 4,538 7,251 73,951 Nonperforming — — — — — — — — Total Commercial real estate construction 9,045 44,246 7,420 1,109 342 4,538 7,251 73,951 Residential mortgage Performing 33,721 75,386 58,061 33,282 21,388 149,704 289 371,831 Nonperforming — — — — — 988 — 988 Total Residential Mortgage 33,721 75,386 58,061 33,282 21,388 150,692 289 372,819 Home equity lines of credit Performing 939 40 — — 99 4,726 78,889 84,693 Nonperforming — — — — — 326 — 326 Total Home equity lines of credit 939 40 — — 99 5,052 78,889 85,019 Consumer Performing 1,389 3,130 971 740 362 1,331 1,781 9,704 Nonperforming — — — — — — — — Total Consumer 1,389 3,130 971 740 362 1,331 1,781 9,704 Total Portfolio loans Performing 120,809 302,633 251,864 121,821 114,696 526,830 131,505 1,570,158 Nonperforming — — — — 324 2,831 504 3,659 Total Portfolio loans $ 120,809 $ 302,633 $ 251,864 $ 121,821 $ 115,020 $ 529,661 $ 132,009 $ 1,573,817
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 as of June 30, 2023, and December 31, 2022: In thousands 30–59 Days Past Due 60–89 Days >90 Days Total Past Current Total Loans Loans June 30, 2023 Commercial and industrial $ — $ 126 $ 161 $ 287 $ 158,250 $ 158,537 $ — Commercial real estate 419 198 — 617 873,170 873,787 — Commercial real estate construction 113 18 — 131 73,820 73,951 — Residential mortgage 47 — 988 1,035 371,784 372,819 645 Home equity lines of credit 596 123 124 843 84,176 85,019 124 Consumer 63 27 — 90 9,614 9,704 — Total Loans $ 1,238 $ 492 $ 1,273 $ 3,003 $ 1,570,814 $ 1,573,817 $ 769 In thousands 30–59 Days Past Due 60–89 Days >90 Days Total Past Current Total Loans Loans December 31, 2022 Commercial and industrial $ 287 $ — $ 162 $ 449 $ 178,313 $ 178,762 $ — Commercial real estate 2,026 350 255 2,631 819,174 821,805 — Commercial real estate construction 24 — — 24 80,446 80,470 — Residential mortgage 2,969 970 705 4,644 357,454 362,098 705 Home equity lines of credit 438 117 498 1,053 83,088 84,141 498 Consumer 155 80 — 235 11,099 11,334 — Total Loans $ 5,899 $ 1,517 $ 1,620 $ 9,036 $ 1,529,574 $ 1,538,610 $ 1,203
Financing Receivable, Loan Portfolio Class	The following table summarizes information relative to individually evaluated loans by loan portfolio class as of June 30, 2023 and December 31, 2022: Individually Evaluated Loans with Allowance Individually Evaluated Loans with In thousands Recorded Investment Related Recorded Investment Related June 30, 2023 Commercial and industrial $ 744 $ 647 $ — $ — Commercial real estate 324 184 1,277 — Commercial real estate construction — — — — Residential mortgage — — 343 — Home equity lines of credit — — 202 — $ 1,068 $ 831 $ 1,822 $ — December 31, 2022 Commercial and industrial $ 781 $ 628 $ — $ — Commercial real estate 350 192 4,984 — Commercial real estate construction — — — — Residential mortgage — — — — Home equity lines of credit — — — — $ 1,131 $ 820 $ 4,984 $ —
Financing Receivable, Amortized Cost Basis	The following table presents the amortized cost basis of individually evaluated loans as of June 30, 2023. 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. June 30, 2023 Type of Collateral In thousands Business Assets Real Estate Commercial and industrial $ 744 $ — Commercial real estate — 1,601 Commercial real estate construction — — Residential mortgage — 343 Home equity lines of credit — 202 Consumer — — Total $ 744 $ 2,146
Summary of allowance for loan losses and recorded investment in loans receivable	The following tables summarize the allowance for credit losses and allowance for loan losses and recorded investment in loans receivable: In thousands Commercial Commercial Commercial Residential Home Equity Consumer Unallocated Total AS OF AND FOR THE PERIOD ENDED JUNE 30, 2023 Allowance for Credit Losses Beginning balance - April 1, 2023 $ 2,105 $ 11,032 $ 2,465 $ 3,366 $ 379 $ 138 $ — $ 19,485 Charge-offs — — — — — (82) — (82) Recoveries 9 — — — — 9 — 18 Provisions (credits) (173) 696 (580) (291) 9 66 — (273) Ending balance - June 30, 2023 $ 1,941 $ 11,728 $ 1,885 $ 3,075 $ 388 $ 131 $ — $ 19,148 Beginning balance - January 1, 2023 $ 2,848 $ 10,016 $ 1,000 $ 3,029 $ 347 $ 376 $ 245 $ 17,861 Impact of CECL adoption (762) 1,106 1,347 297 17 (142) (245) $ 1,618 Charge-offs (29) — — — — (170) — (199) Recoveries 10 — — — — 34 — 44 Provisions (credits) (126) 606 (462) (251) 24 33 — (176) Ending balance - June 30, 2023 $ 1,941 $ 11,728 $ 1,885 $ 3,075 $ 388 $ 131 $ — $ 19,148 Ending balance: individually evaluated for impairment $ 647 $ 184 $ — $ — $ — $ — $ — $ 831 Ending balance: collectively evaluated for impairment $ 1,294 $ 11,544 $ 1,885 $ 3,075 $ 388 $ 131 $ — $ 18,317 Loans Receivable Ending balance $ 158,537 $ 873,787 $ 73,951 $ 372,819 $ 85,019 $ 9,704 $ — $ 1,573,817 Ending balance: individually evaluated for impairment $ 744 $ 1,601 $ — $ 343 $ 202 $ — $ — $ 2,890 Ending balance: collectively evaluated for impairment $ 157,793 $ 872,186 $ 73,951 $ 372,476 $ 84,817 $ 9,704 $ — $ 1,570,927 AS OF AND FOR THE PERIOD ENDED JUNE 30, 2022 Allowance for Loan Losses Beginning balance - April 1, 2022 $ 3,280 $ 10,625 $ 666 $ 3,082 $ 426 $ 385 $ 499 $ 18,963 Charge-offs (34) — — (3) — (1) — (38) Recoveries 5 — — 5 — 8 — 18 Provisions (credits) (135) 214 152 115 (30) 35 (351) — Ending balance - June 30, 2022 $ 3,116 $ 10,839 $ 818 $ 3,199 $ 396 $ 427 $ 148 $ 18,943 Beginning balance - January 1, 2022 $ 3,176 $ 10,716 $ 616 $ 3,235 $ 501 $ 408 $ 381 $ 19,033 Charge-offs (97) — — (3) — (20) — (120) Recoveries 15 — — 5 — 10 — 30 Provisions (credits) 22 123 202 (38) (105) 29 (233) — Ending balance - June 30, 2022 $ 3,116 $ 10,839 $ 818 $ 3,199 $ 396 $ 427 $ 148 $ 18,943 Ending balance: individually evaluated for impairment $ 742 $ 832 $ — $ — $ — $ — $ — $ 1,574 Ending balance: collectively evaluated for impairment $ 2,374 $ 10,007 $ 818 $ 3,199 $ 396 $ 427 $ 148 $ 17,369 Loans Receivable Ending balance $ 177,115 $ 818,117 $ 69,120 $ 348,475 $ 83,589 $ 13,376 $ — $ 1,509,792 Ending balance: individually evaluated for impairment $ 895 $ 7,000 $ — $ — $ — $ — $ — $ 7,895 Ending balance: collectively evaluated for impairment $ 176,220 $ 811,117 $ 69,120 $ 348,475 $ 83,589 $ 13,376 $ — $ 1,501,897 In thousands Commercial Commercial Commercial Residential Home Equity Consumer Unallocated Total AS OF DECEMBER 31, 2022 Allowance for Loan Losses Ending balance $ 2,848 $ 10,016 $ 1,000 $ 3,029 $ 347 $ 376 $ 245 $ 17,861 Ending balance: individually evaluated for impairment $ 628 $ 192 $ — $ — $ — $ — $ — $ 820 Ending balance: collectively evaluated for impairment $ 2,220 $ 9,824 $ 1,000 $ 3,029 $ 347 $ 376 $ 245 $ 17,041 Loans Receivable Ending balance $ 178,762 $ 821,805 $ 80,470 $ 362,098 $ 84,141 $ 11,334 $ — $ 1,538,610 Ending balance: individually evaluated for impairment $ 781 $ 5,334 $ — $ — $ — $ — $ — $ 6,115 Ending balance: collectively evaluated for impairment $ 177,981 $ 816,471 $ 80,470 $ 362,098 $ 84,141 $ 11,334 $ — $ 1,532,495

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2023
Fair Value Disclosures [Abstract]
Schedule of fair value measurements by level within the fair value hierarchy and the basis of measurement used	For assets measured at fair value, the fair value measurements by level within the fair value hierarchy, and the basis of measurement used at June 30, 2023, and December 31, 2022, are as follows: June 30, 2023 In thousands Basis Total Level 1 Level 2 Level 3 U.S. Government and agencies $ 198,830 $ — $ 198,830 $ — Mortgage-backed securities 238,290 — 238,290 — State and municipal — — — — Corporate bonds 15,132 — 15,132 — Total securities available for sale Recurring $ 452,252 $ — $ 452,252 $ — Equity securities with readily determinable fair values Recurring $ 915 $ 915 $ — $ — Individually evaluated loans Nonrecurring $ 237 $ — $ — $ 237 December 31, 2022 In thousands Basis Total Level 1 Level 2 Level 3 U.S. Government and agencies $ 210,999 $ — $ 210,999 $ — Mortgage-backed securities 295,718 — 295,718 — State and municipal 15,235 — 15,235 — Corporate bonds 31,602 — 31,602 — Total securities available for sale Recurring $ 553,554 $ — $ 553,554 $ — Equity securities with readily determinable fair values Recurring $ 1,719 $ 1,719 $ — $ — Collateral dependent impaired loans Nonrecurring $ 3,773 $ — $ — $ 3,773
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: Quantitative Information about Level 3 Fair Value Measurements Dollars in thousands Fair Value Estimate Valuation Technique Unobservable Input Range Weighted Average June 30, 2023 Individually evaluated loans $ 237 Appraisal of collateral (a) Appraisal adjustments (b) (10) – (50)% (91)% December 31, 2022 Impaired loans $ 3,773 Appraisal of collateral (a) Appraisal adjustments (b) (10) – (50)% (48)% (a) 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. (b) 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 presents the carrying amount, fair value, and placement in the fair value hierarchy of the Corporation’s financial instruments as of June 30, 2023: June 30, 2023 In thousands Carrying Amount Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 24,898 $ 24,898 $ 6,620 $ 18,278 $ — Interest-bearing deposits with banks 59,145 59,145 59,145 — — Equity securities with readily determinable fair values 915 915 915 — — Debt securities available for sale 452,252 452,252 — 452,252 — Securities held to maturity 64,926 58,133 — 58,133 — Loans held for sale — — — — — Loans, less allowance for credit losses 1,554,669 1,485,588 — — 1,485,588 Accrued interest receivable 6,702 6,702 — 6,702 — Restricted investment in bank stocks 4,877 N/A — N/A — Financial liabilities: Demand deposits and savings 1,752,296 1,752,296 — 1,752,296 — Time deposits 211,458 197,480 — 197,480 — Short-term sweep accounts 26,703 26,453 — 26,453 — Short & long-term borrowings 85,000 85,350 — 85,350 — Trust preferred and subordinated debt 21,000 17,962 — 17,962 — Accrued interest payable 291 291 — 291 — Off-balance sheet financial instruments — — — — — The following presents the carrying amount, fair value, and placement in the fair value hierarchy of the Corporation’s financial instruments as of December 31, 2022: December 31, 2022 In thousands Carrying Amount Fair Value Level 1 Level 2 Level 3 Financial assets: Cash and due from banks $ 40,067 $ 40,067 $ 6,977 $ 33,090 $ — Interest-bearing deposits with banks 128,094 128,094 128,094 — — Equity securities with readily determinable fair values 1,719 1,719 1,719 — — Debt securities available for sale 553,554 553,554 — 553,554 — Securities held to maturity 64,977 58,078 — 58,078 — Loans held for sale 123 123 — 123 — Loans, less allowance for credit losses 1,520,749 1,458,556 — — 1,458,556 Accrued interest receivable 6,915 6,915 — 6,915 — Restricted investment in bank stocks 1,629 1,629 — 1,629 — Financial liabilities: Demand deposits and savings 1,905,845 1,905,845 — 1,905,845 — Time deposits 293,130 276,182 — 276,182 — Short-term sweep accounts 41,954 41,954 — 41,954 — Short & long-term borrowings — — — — — Trust preferred and subordinated debt 21,000 18,648 — 18,648 — Accrued interest payable 51 51 — 51 — Off-balance sheet financial instruments — — — — —

Deposits (Tables)

Deposits (Tables)	6 Months Ended
	Jun. 30, 2023
Deposits [Abstract]
Deposit Liabilities, Type	The following table presents the composition of deposits at the dates presented: In thousands June 30, 2023 December 31, 2022 Noninterest-bearing demand $ 569,729 $ 595,049 Interest-bearing checking, savings, and money markets 1,182,567 1,310,796 Certificates of deposit of $250,000 or less 177,475 241,562 Certificates of deposit greater than $250,000 33,983 51,568 Total $ 1,963,754 $ 2,198,975
Time Deposit Maturities	Certificates of deposit maturing as of June 30, 2023 are as follows: In thousands 3 months or less $ 54,402 Over 3 months through 12 months 103,444 Over 1 year through 3 years 47,242 Over 3 years 6,370 Total $ 211,458

Borrowings (Tables)

Borrowings (Tables)	6 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Schedule of short-term debt outstanding	The Corporation had short-term debt outstanding as follows: In thousands June 30, 2023 December 31, 2022 Securities sold under repurchase agreements $ 26,703 $ 41,954 FHLB advance 25,000 — $ 51,703 $ 41,954
Schedule of long-term debt outstanding	The Corporation had long-term debt outstanding as follows: In thousands June 30, 2023 December 31, 2022 FHLB advances $ 60,000 $ — Trust preferred subordinated debt 6,000 6,000 Subordinated debt 15,000 15,000 $ 81,000 $ 21,000

Basis of Presentation and Nat_2

Basis of Presentation and Nature of Operations (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) bank	Jun. 30, 2022 USD ($)	Mar. 31, 2023 USD ($)	Jan. 01, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Number of community banking office locations, ACNB | bank			26
Allowance for credit losses on loans	$ 19,148	$ 18,943	$ 19,148	$ 18,943	$ 19,485	$ 17,861	$ 17,861	$ 18,963	$ 19,033
Allowance for unfunded commitments	2,132		2,132			92	92
Unfunded Loan Commitment
Business Acquisition [Line Items]
Allowance for credit losses on loans	2,100		2,100
Reversal of Credit Losses	(121)	0	(397)	0
Financing Receivable Excluding Unfunded Commitments
Business Acquisition [Line Items]
Reversal of Credit Losses	$ 273	$ 0	$ 176	$ 0
Revision of Prior Period, Adjustment
Business Acquisition [Line Items]
Adjustment						3,300
Allowance for credit losses on loans						1,618
Allowance for unfunded commitments						1,643
Impact of CECL adoption
Business Acquisition [Line Items]
Allowance for credit losses on loans						1,600	$ 1,618
Impact of CECL adoption | Financing Receivable Excluding Unfunded Commitments
Business Acquisition [Line Items]
Allowance for credit losses on loans						$ (1,600)
Adams, Cumberland, Franklin and York Counties, Pennsylvania
Business Acquisition [Line Items]
Number of community banking office locations, ACNB | bank			17
Carroll and Frederick Counties, Maryland
Business Acquisition [Line Items]
Number of community banking office locations, ACNB | bank			9

Basis of Presentation and Nat_3

Basis of Presentation and Nature of Operations - Impact of Topic 326 (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans	$ (19,148)	$ (19,485)	$ (17,861)	$ (17,861)	$ (18,943)	$ (18,963)	$ (19,033)
Total Loans, net of allowance for credit losses	1,554,669		1,520,749	1,520,749
Net deferred tax asset			17,718
Allowance for unfunded commitments	2,132		92	92
Retained earnings	205,279		245,042	193,873
Revision of Prior Period, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(1,618)
Total Loans, net of allowance for credit losses			1,618
Net deferred tax asset			734
Allowance for unfunded commitments			1,643
Retained earnings			2,368
Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(19,479)
Total Loans, net of allowance for credit losses			1,519,131
Net deferred tax asset			18,452
Allowance for unfunded commitments			1,735
Retained earnings			242,674
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans	(1,941)	(2,105)	(2,848)	(2,848)	(3,116)	(3,280)	(3,176)
Commercial and industrial | Revision of Prior Period, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			762
Commercial and industrial | Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(2,086)
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans	(11,728)	(11,032)	(10,016)	(10,016)	(10,839)	(10,625)	(10,716)
Commercial real estate | Revision of Prior Period, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(1,106)
Commercial real estate | Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(11,122)
Commercial real estate construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans	(1,885)	(2,465)	(1,000)	(1,000)	(818)	(666)	(616)
Commercial real estate construction | Revision of Prior Period, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(1,347)
Commercial real estate construction | Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(2,347)
Residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans	(3,075)	(3,366)	(3,029)	(3,029)	(3,199)	(3,082)	(3,235)
Residential mortgage | Revision of Prior Period, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(297)
Residential mortgage | Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(3,326)
Home equity lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans	(388)	(379)	(347)	(347)	(396)	(426)	(501)
Home equity lines of credit | Revision of Prior Period, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(17)
Home equity lines of credit | Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(364)
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans	(131)	(138)	(376)	(376)	(427)	(385)	(408)
Consumer | Revision of Prior Period, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			142
Consumer | Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			(234)
Unallocated
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans	$ 0	$ 0	(245)	$ (245)	$ (148)	$ (499)	$ (381)
Unallocated | Revision of Prior Period, Adjustment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			245
Unallocated | Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses on loans			$ 0

Earnings Per Share and Restri_2

Earnings Per Share and Restricted Stock (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Feb. 24, 2019	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Mar. 08, 2019	Mar. 20, 2018	Feb. 24, 2009
Earnings Per Share [Abstract]
Weighted average shares of common stock outstanding, basic (in shares)		8,512,145	8,705,994	8,517,741	8,695,133
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average shares of common stock outstanding, basic (in shares)		8,512,145	8,705,994	8,517,741	8,695,133
Weighted average shares of common stock outstanding, diluted (in shares)		8,523,877	8,705,994	8,541,423	8,695,133
Non-vested number of shares (in shares)		35,500		35,500
2009 Restricted Stock Plan, Number of shares authorized, but not issued (in shares)						174,055
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		$ 254	$ 116	$ 748	$ 358
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
Aggregate shares of common stock under new stock incentive plan (in shares)								200,000
ACNB Corporation 2009 Restricted Stock Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued under plan (in shares)		25,945		25,945
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)		35,500		35,500
Shares issued under plan (in shares)		100,746		100,746
Shares fully vested (in shares)		65,246		65,246
Shares vested during the quarter (in shares)		0
Vesting period (in years)				2 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant		473,309		473,309

Retirement Benefits (Details)

Retirement Benefits (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($) person	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) person	Jun. 30, 2022 USD ($)
Postemployment Benefits [Abstract]
Service cost	$ 124	$ 194	$ 248	$ 388
Interest cost	373	263	746	526
Expected return on plan assets	(663)	(784)	(1,326)	(1,568)
Amortization of net loss	98	101	196	203
Net Periodic Benefit Income	$ (68)	$ (226)	$ (136)	$ (451)
Number of active, vested, terminated and retired persons in the plan | person	343		343

Guarantees (Details)

Guarantees (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Guarantor Obligations [Line Items]
Line of credit facility expiration period	1 year
Standby Letters of Credit
Guarantor Obligations [Line Items]
Guarantees amount	$ 17,997

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		$ 255,841	$ 256,009	$ 245,042	$ 272,114
Unrealized loss on available for sale securities, net of tax		(6,891)	(12,701)	(1,255)	(34,139)
Realized losses on securities, net of tax	[1],[2]	410	0	556	0
Amortization of unrealized losses on securities transferred to held to maturity, net of tax	[3]	265	0	487	0
Amortization of pension net loss, transition liability and prior service cost, net of tax	[2],[4]	124	79	172	158
Unrecognized pension net gain, net of tax	[2]	0	0	0	0
TOTAL OTHER COMPREHENSIVE LOSS		(6,092)	(12,622)	(40)	(33,981)
Ending Balance		257,069	247,032	257,069	247,032
Unrealized Losses on Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance				(52,734)
Unrealized loss on available for sale securities, net of tax				(1,255)
Realized losses on securities, net of tax				556
Amortization of unrealized losses on securities transferred to held to maturity, net of tax				487
Amortization of pension net loss, transition liability and prior service cost, net of tax				0
Unrecognized pension net gain, net of tax				0
TOTAL OTHER COMPREHENSIVE LOSS				(212)
Ending Balance		(52,946)		(52,946)
Pension Liability
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance				(5,278)
Unrealized loss on available for sale securities, net of tax				0
Realized losses on securities, net of tax				0
Amortization of unrealized losses on securities transferred to held to maturity, net of tax				0
Amortization of pension net loss, transition liability and prior service cost, net of tax				172
Unrecognized pension net gain, net of tax				0
TOTAL OTHER COMPREHENSIVE LOSS				172
Ending Balance		(5,106)		(5,106)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		(51,960)	(30,904)	(58,012)	(9,545)
Unrealized loss on available for sale securities, net of tax				(1,255)
Realized losses on securities, net of tax				556
Amortization of unrealized losses on securities transferred to held to maturity, net of tax				487
Amortization of pension net loss, transition liability and prior service cost, net of tax				172
Unrecognized pension net gain, net of tax				0
TOTAL OTHER COMPREHENSIVE LOSS				(40)
Ending Balance		$ (58,052)	$ (43,526)	$ (58,052)	$ (43,526)
[1]Gross amounts are included in net gains on sales or call of securities on the Consolidated Statements of Income in total other income.[2]Income tax amounts are included in the provision for income taxes on the Consolidated Statements of Income.[3]Total unrealized loss remaining on investment securities held to maturity was $2,525,000 at June 30, 2023[4]Gross amounts are included in the computation of net periodic benefit cost and are included in salaries and employee benefits on the Consolidated Statements of Income in total other expenses.

Segment Reporting (Details)

Segment Reporting (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) segment	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting [Abstract]
Number of reporting segments | segment			2
Segment Reporting Information [Line Items]
Interest income and other income from external customers	$ 29,407	$ 26,772	$ 58,300	$ 49,308
Interest Expense	1,223	892	2,040	1,916
Depreciation and amortization	851	955	1,734	1,834
Income before income taxes	12,055	10,874	23,476	19,104
Total assets	2,378,151	2,683,162	2,378,151	2,683,162	$ 2,525,507
Capital expenditures	48	389	106	720
Banking
Segment Reporting Information [Line Items]
Interest income and other income from external customers	26,567	23,964	53,558	45,300
Interest Expense	1,223	880	2,040	1,898
Depreciation and amortization	639	745	1,312	1,493
Income before income taxes	11,109	9,806	22,401	18,162
Total assets	2,358,549	2,663,184	2,358,549	2,663,184
Capital expenditures	48	383	100	703
Insurance
Segment Reporting Information [Line Items]
Interest income and other income from external customers	2,840	2,808	4,742	4,008
Interest Expense	0	12	0	18
Depreciation and amortization	212	210	422	341
Income before income taxes	946	1,068	1,075	942
Total assets	19,602	19,978	19,602	19,978
Capital expenditures	$ 0	$ 6	$ 6	$ 17

Securities - Schedule of Amorti

Securities - Schedule of Amortized Cost and Fair Value of Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
SECURITIES AVAILABLE FOR SALE
Available-for-sale, Amortized Cost	$ 518,307	$ 617,641
Gross Unrealized Gains	0	553
Gross Unrealized Losses	66,055	64,640
Debt securities available for sale	452,252	553,554
SECURITIES HELD TO MATURITY
Held to Maturity, Amortized Cost	64,926	64,977
Gross Unrecognized Gains	0	0
Gross Unrecognized Losses	6,793	6,899
Fair Value	58,133	58,078
U.S. Government and agencies
SECURITIES AVAILABLE FOR SALE
Available-for-sale, Amortized Cost	228,489	241,467
Gross Unrealized Gains	0	0
Gross Unrealized Losses	29,659	30,468
Debt securities available for sale	198,830	210,999
Mortgage-backed securities
SECURITIES AVAILABLE FOR SALE
Available-for-sale, Amortized Cost	271,698	327,535
Gross Unrealized Gains	0	342
Gross Unrealized Losses	33,408	32,159
Debt securities available for sale	238,290	295,718
SECURITIES HELD TO MATURITY
Held to Maturity, Amortized Cost	2,864	3,279
Gross Unrecognized Gains	0	0
Gross Unrecognized Losses	186	194
Fair Value	2,678	3,085
State and municipal
SECURITIES AVAILABLE FOR SALE
Available-for-sale, Amortized Cost	0	15,235
Gross Unrealized Gains	0	196
Gross Unrealized Losses	0	196
Debt securities available for sale	0	15,235
SECURITIES HELD TO MATURITY
Held to Maturity, Amortized Cost	62,062	61,698
Gross Unrecognized Gains	0	0
Gross Unrecognized Losses	6,607	6,705
Fair Value	55,455	54,993
Corporate bonds
SECURITIES AVAILABLE FOR SALE
Available-for-sale, Amortized Cost	18,120	33,404
Gross Unrealized Gains	0	15
Gross Unrealized Losses	2,988	1,817
Debt securities available for sale	$ 15,132	$ 31,602

Securities - Schedule of Requir

Securities - Schedule of Required Fair Value Disclosures for Equity Securities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair value at beginning of period	$ 1,719	$ 2,609
Purchases	0	206
Sales/reclassification	798	811
Gains	5	13
Losses on sales of securities	11	298
Fair value at end of period	915	1,719
CRA Mutual Fund
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair value at beginning of period	915	1,036
Purchases	0	0
Sales/reclassification	0	0
Gains	0	0
Losses on sales of securities	0	121
Fair value at end of period	915	915
Canapi Ventures SBIC Fund
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair value at beginning of period	206	0
Purchases	0	206
Sales/reclassification	206	0
Gains	0	0
Losses on sales of securities	0	0
Fair value at end of period	0	206
Stock in other banks
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair value at beginning of period	598	1,573
Purchases	0	0
Sales/reclassification	592	811
Gains	5	13
Losses on sales of securities	11	177
Fair value at end of period	$ 0	$ 598

Securities - Schedule of Unreal

Securities - Schedule of Unrealized Losses and Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
SECURITIES AVAILABLE FOR SALE
Fair Value, Less than 12 Months	$ 16,989	$ 277,241
Unrealized Losses, Less than 12 Months	1,264	22,236
Fair Value, 12 Months or More	435,263	253,968
Unrealized Losses, 12 Months or More	64,791	42,404
Total Fair Value	452,252	531,209
Total Unrealized Losses	66,055	64,640
SECURITIES HELD TO MATURITY
Fair Value, Less than 12 Months	285	41,171
Unrealized Losses, Less than 12 Months	0	4,069
Fair Value, 12 Months or More	57,848	16,907
Unrealized Losses, 12 Months or More	6,793	2,830
Total Fair Value	58,133	58,078
Total Unrealized Losses	6,793	6,899
U.S. Government and agencies
SECURITIES AVAILABLE FOR SALE
Fair Value, Less than 12 Months	0	25,426
Unrealized Losses, Less than 12 Months	0	1,461
Fair Value, 12 Months or More	198,830	185,573
Unrealized Losses, 12 Months or More	29,659	29,007
Total Fair Value	198,830	210,999
Total Unrealized Losses	29,659	30,468
Mortgage-backed securities
SECURITIES AVAILABLE FOR SALE
Fair Value, Less than 12 Months	14,612	221,249
Unrealized Losses, Less than 12 Months	891	19,362
Fair Value, 12 Months or More	223,678	63,145
Unrealized Losses, 12 Months or More	32,517	12,797
Total Fair Value	238,290	284,394
Total Unrealized Losses	33,408	32,159
SECURITIES HELD TO MATURITY
Fair Value, Less than 12 Months	0	3,085
Unrealized Losses, Less than 12 Months	0	194
Fair Value, 12 Months or More	2,678	0
Unrealized Losses, 12 Months or More	186	0
Total Fair Value	2,678	3,085
Total Unrealized Losses	186	194
State and municipal
SECURITIES AVAILABLE FOR SALE
Fair Value, Less than 12 Months	0	6,229
Unrealized Losses, Less than 12 Months	0	196
Fair Value, 12 Months or More	0	0
Unrealized Losses, 12 Months or More	0	0
Total Fair Value	0	6,229
Total Unrealized Losses	0	196
SECURITIES HELD TO MATURITY
Fair Value, Less than 12 Months	285	38,086
Unrealized Losses, Less than 12 Months	0	3,875
Fair Value, 12 Months or More	55,170	16,907
Unrealized Losses, 12 Months or More	6,607	2,830
Total Fair Value	55,455	54,993
Total Unrealized Losses	6,607	6,705
Corporate bonds
SECURITIES AVAILABLE FOR SALE
Fair Value, Less than 12 Months	2,377	24,337
Unrealized Losses, Less than 12 Months	373	1,217
Fair Value, 12 Months or More	12,755	5,250
Unrealized Losses, 12 Months or More	2,615	600
Total Fair Value	15,132	29,587
Total Unrealized Losses	$ 2,988	$ 1,817

Securities - Narrative (Details

Securities - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
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	$ 247,854		$ 247,854		$ 342,180
Gross gains	15	$ 0	243	$ 0
Gross losses	$ 561	$ 0	$ 982	$ 0

Securities - Schedule of Amor_2

Securities - Schedule of Amortized Cost and Fair Value by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Available for Sale Amortized Cost
1 year or less	$ 0
Over 1 year through 5 years	161,885
Over 5 years through 10 years	80,151
Over 10 years	4,573
Without single maturity date	271,698
Available-for-sale, Amortized Cost	518,307	$ 617,641
Available for Sale Fair Value
1 year or less	0
Over 1 year through 5 years	144,664
Over 5 years through 10 years	65,766
Over 10 years	3,532
Without single maturity date	238,290
Available for Sale, Fair Value	452,252	553,554
Held-to-Maturity Amortized Cost
1 year or less	285
Over 1 year through 5 years	380
Over 5 years through 10 years	17,005
Over 10 years	44,392
Mortgage-backed securities	2,864
Held to Maturity, Amortized Cost	64,926	64,977
Held-to-Maturity Fair Value
1 year or less	285
Over 1 year through 5 years	359
Over 5 years through 10 years	15,738
Over 10 years	39,073
Mortgage-backed securities	2,678
Held to Maturity, Fair Value	58,133	58,078
Mortgage-backed securities
Available for Sale Amortized Cost
Available-for-sale, Amortized Cost	271,698	327,535
Available for Sale Fair Value
Available for Sale, Fair Value	238,290	295,718
Held-to-Maturity Amortized Cost
Held to Maturity, Amortized Cost	2,864	3,279
Held-to-Maturity Fair Value
Held to Maturity, Fair Value	$ 2,678	$ 3,085

Securities - Gain (Loss) on Sec

Securities - Gain (Loss) on Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Proceeds	$ 32,235	$ 0	$ 79,215	$ 0
Gross gains	15	0	243	0
Gross losses	$ 561	$ 0	$ 982	$ 0

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses - Schedule of the Composition of the Loan Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, before allowance for credit loss	$ 1,573,817	$ 1,538,610	$ 1,509,792
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, before allowance for credit loss	158,537	178,762	177,115
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, before allowance for credit loss	873,787	821,805	818,117
Commercial real estate construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, before allowance for credit loss	73,951	80,470	69,120
Residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, before allowance for credit loss	372,819	362,098	348,475
Home equity lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, before allowance for credit loss	85,019	84,141	83,589
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing receivable, before allowance for credit loss	$ 9,704	$ 11,334	$ 13,376

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses - Schedule of Nonaccrual Loans by Classes of the Loan Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Total nonaccrual loans	$ 2,890	$ 2,654
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total nonaccrual loans	744	781
Commercial real estate
Financing Receivable, Past Due [Line Items]
Total nonaccrual loans	1,601	1,873
Commercial real estate construction
Financing Receivable, Past Due [Line Items]
Total nonaccrual loans	0	0
Residential mortgage
Financing Receivable, Past Due [Line Items]
Total nonaccrual loans	343	0
Home equity lines of credit
Financing Receivable, Past Due [Line Items]
Total nonaccrual loans	$ 202	$ 0

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process	$ 569	$ 1,101
Maximum | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable term	20 years
Loan-to-value ratio (no greater than)	80%
Maximum | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable term	30 years
Loan-to-value ratio (no greater than)	80%
Loan-to-value ratio that requires private mortgage insurance (in excess of)	80%
Maximum | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable term	20 years
Loan-to-value ratio (no greater than)	90%

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses - Schedule of Classes of the Loan Portfolio Summarized by the Aggregate Risk Rating (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 120,809		$ 120,809
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	302,633		302,633
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	251,864		251,864
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	121,821		121,821
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	115,020		115,020
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	529,661		529,661
Financing Receivable, Revolving	132,009		132,009
Financing receivable, before allowance for credit loss	1,573,817	$ 1,509,792	1,573,817	$ 1,509,792	$ 1,538,610
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff			5
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff			62
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff			32
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff			7
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff			16
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff			77
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	82	38	199	120
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	120,029		120,029
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	296,884		296,884
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	249,425		249,425
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	119,234		119,234
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	108,659		108,659
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	502,719		502,719
Financing Receivable, Revolving	128,624		128,624
Financing receivable, before allowance for credit loss	1,525,574		1,525,574		1,489,259
Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	772		772
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	5,730		5,730
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,439		2,439
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	2,567		2,567
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	5,804		5,804
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	19,951		19,951
Financing Receivable, Revolving	2,855		2,855
Financing receivable, before allowance for credit loss	40,118		40,118		41,908
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	8		8
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	19		19
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	20		20
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	557		557
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	6,991		6,991
Financing Receivable, Revolving	530		530
Financing receivable, before allowance for credit loss	8,125		8,125		7,443
Doubtful
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	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	120,809		120,809
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	302,633		302,633
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	251,864		251,864
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	121,821		121,821
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	114,696		114,696
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	526,830		526,830
Financing Receivable, Revolving	131,505		131,505
Financing receivable, before allowance for credit loss	1,570,158		1,570,158		1,534,753
Nonperforming Loans
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	324		324
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,831		2,831
Financing Receivable, Revolving	504		504
Financing receivable, before allowance for credit loss	3,659		3,659		3,857
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	3,187		3,187
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	27,255		27,255
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	39,524		39,524
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	17,399		17,399
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	15,136		15,136
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	27,196		27,196
Financing Receivable, Revolving	28,840		28,840
Financing receivable, before allowance for credit loss	158,537	177,115	158,537	177,115	178,762
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			29
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	34	29	97
Commercial and industrial | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	3,061		3,061
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	26,848		26,848
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	39,180		39,180
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	16,865		16,865
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	14,949		14,949
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	25,763		25,763
Financing Receivable, Revolving	26,949		26,949
Financing receivable, before allowance for credit loss	153,615		153,615		173,437
Commercial and industrial | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	118		118
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	388		388
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	344		344
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	514		514
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	174		174
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	613		613
Financing Receivable, Revolving	1,387		1,387
Financing receivable, before allowance for credit loss	3,538		3,538		4,035
Commercial and industrial | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	8		8
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	19		19
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	20		20
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	13		13
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	820		820
Financing Receivable, Revolving	504		504
Financing receivable, before allowance for credit loss	1,384		1,384		1,290
Commercial and industrial | Doubtful
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	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Commercial and industrial | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Commercial and industrial | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	3,187		3,187
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	27,255		27,255
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	39,524		39,524
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	17,399		17,399
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	15,136		15,136
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	26,956		26,956
Financing Receivable, Revolving	28,336		28,336
Financing receivable, before allowance for credit loss	157,793		157,793		177,981
Commercial and industrial | Nonperforming Loans
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	240		240
Financing Receivable, Revolving	504		504
Financing receivable, before allowance for credit loss	744		744		781
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	72,528		72,528
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	152,576		152,576
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	145,888		145,888
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	69,291		69,291
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	77,693		77,693
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	340,852		340,852
Financing Receivable, Revolving	14,959		14,959
Financing receivable, before allowance for credit loss	873,787	818,117	873,787	818,117	821,805
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			0
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0	0	0
Commercial real estate | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	72,354		72,354
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	147,795		147,795
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	144,506		144,506
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	67,743		67,743
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	72,227		72,227
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	321,050		321,050
Financing Receivable, Revolving	14,273		14,273
Financing receivable, before allowance for credit loss	839,948		839,948		786,711
Commercial real estate | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	174		174
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,781		4,781
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	1,382		1,382
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,548		1,548
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	4,922		4,922
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	15,107		15,107
Financing Receivable, Revolving	686		686
Financing receivable, before allowance for credit loss	28,600		28,600		29,540
Commercial real estate | Substandard
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	544		544
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,695		4,695
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	5,239		5,239		5,554
Commercial real estate | Doubtful
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	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Commercial real estate | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Commercial real estate | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	72,528		72,528
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	152,576		152,576
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	145,888		145,888
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	69,291		69,291
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	77,369		77,369
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	339,575		339,575
Financing Receivable, Revolving	14,959		14,959
Financing receivable, before allowance for credit loss	872,186		872,186		819,932
Commercial real estate | Nonperforming Loans
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	324		324
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,277		1,277
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	1,601		1,601		1,873
Commercial real estate construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	9,045		9,045
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	44,246		44,246
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	7,420		7,420
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,109		1,109
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	342		342
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,538		4,538
Financing Receivable, Revolving	7,251		7,251
Financing receivable, before allowance for credit loss	73,951	69,120	73,951	69,120	80,470
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			0
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0	0	0
Commercial real estate construction | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	9,045		9,045
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	43,769		43,769
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	7,420		7,420
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,016		1,016
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	342		342
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,781		3,781
Financing Receivable, Revolving	7,251		7,251
Financing receivable, before allowance for credit loss	72,624		72,624		78,652
Commercial real estate construction | Special Mention
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	477		477
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0		0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	93		93
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0		0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	757		757
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	1,327		1,327		1,818
Commercial real estate construction | Substandard
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	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Commercial real estate construction | Doubtful
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	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Commercial real estate construction | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Commercial real estate construction | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	9,045		9,045
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	44,246		44,246
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	7,420		7,420
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,109		1,109
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	342		342
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,538		4,538
Financing Receivable, Revolving	7,251		7,251
Financing receivable, before allowance for credit loss	73,951		73,951		80,470
Commercial real estate construction | Nonperforming Loans
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	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	33,721		33,721
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	75,386		75,386
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	58,061		58,061
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	33,282		33,282
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	21,388		21,388
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	150,692		150,692
Financing Receivable, Revolving	289		289
Financing receivable, before allowance for credit loss	372,819	348,475	372,819	348,475	362,098
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			0
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	3	0	3
Residential mortgage | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	33,241		33,241
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	75,302		75,302
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	57,348		57,348
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	32,870		32,870
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	20,680		20,680
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	146,279		146,279
Financing Receivable, Revolving	289		289
Financing receivable, before allowance for credit loss	366,009		366,009		356,081
Residential mortgage | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	480		480
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	84		84
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	713		713
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	412		412
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	708		708
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,438		3,438
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	5,835		5,835		5,803
Residential mortgage | Substandard
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	975		975
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	975		975		214
Residential mortgage | Doubtful
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	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Residential mortgage | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Residential mortgage | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	33,721		33,721
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	75,386		75,386
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	58,061		58,061
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	33,282		33,282
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	21,388		21,388
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	149,704		149,704
Financing Receivable, Revolving	289		289
Financing receivable, before allowance for credit loss	371,831		371,831		361,393
Residential mortgage | Nonperforming Loans
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	988		988
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	988		988		705
Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	939		939
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	40		40
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	99		99
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	5,052		5,052
Financing Receivable, Revolving	78,889		78,889
Financing receivable, before allowance for credit loss	85,019	83,589	85,019	83,589	84,141
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			0
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	0	0	0	0
Home equity lines of credit | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	939		939
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	40		40
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	99		99
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,515		4,515
Financing Receivable, Revolving	78,107		78,107
Financing receivable, before allowance for credit loss	83,700		83,700		83,044
Home equity lines of credit | Special Mention
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	36		36
Financing Receivable, Revolving	782		782
Financing receivable, before allowance for credit loss	818		818		712
Home equity lines of credit | Substandard
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	501		501
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	501		501		385
Home equity lines of credit | Doubtful
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	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Home equity lines of credit | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Home equity lines of credit | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	939		939
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	40		40
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	99		99
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,726		4,726
Financing Receivable, Revolving	78,889		78,889
Financing receivable, before allowance for credit loss	84,693		84,693		83,643
Home equity lines of credit | Nonperforming Loans
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	326		326
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	326		326		498
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	1,389		1,389
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	3,130		3,130
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	971		971
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	740		740
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	362		362
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,331		1,331
Financing Receivable, Revolving	1,781		1,781
Financing receivable, before allowance for credit loss	9,704	13,376	9,704	13,376	11,334
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff			5
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff			62
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff			32
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff			7
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff			16
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff			48
Financing Receivable, Revolving, Writeoff			0
Financing Receivable, Allowance for Credit Loss, Writeoff	82	$ 1	170	$ 20
Consumer | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	1,389		1,389
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	3,130		3,130
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	971		971
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	740		740
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	362		362
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,331		1,331
Financing Receivable, Revolving	1,755		1,755
Financing receivable, before allowance for credit loss	9,678		9,678		11,334
Consumer | Special Mention
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	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Consumer | Substandard
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	0		0
Financing Receivable, Revolving	26		26
Financing receivable, before allowance for credit loss	26		26		0
Consumer | Doubtful
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	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	0		0		0
Consumer | Loss
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, before allowance for credit loss					0
Consumer | Performing Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	1,389		1,389
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	3,130		3,130
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	971		971
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	740		740
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	362		362
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,331		1,331
Financing Receivable, Revolving	1,781		1,781
Financing receivable, before allowance for credit loss	9,704		9,704		11,334
Consumer | Nonperforming Loans
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	0		0
Financing Receivable, Revolving	0		0
Financing receivable, before allowance for credit loss	$ 0		$ 0		$ 0

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses - Schedule of Loan Portfolio Summarized by Performing and Nonperforming (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 120,809
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	302,633
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	251,864
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	121,821
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	115,020
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	529,661
Financing Receivable, Revolving	132,009
Financing receivable, before allowance for credit loss	1,573,817	$ 1,538,610	$ 1,509,792
Performing Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	120,809
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	302,633
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	251,864
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	121,821
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	114,696
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	526,830
Financing Receivable, Revolving	131,505
Financing receivable, before allowance for credit loss	1,570,158	1,534,753
Nonperforming Loans
Financing Receivable, Allowance for Credit Loss [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	324
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,831
Financing Receivable, Revolving	504
Financing receivable, before allowance for credit loss	3,659	3,857
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	3,187
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	27,255
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	39,524
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	17,399
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	15,136
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	27,196
Financing Receivable, Revolving	28,840
Financing receivable, before allowance for credit loss	158,537	178,762	177,115
Commercial and industrial | Performing Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	3,187
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	27,255
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	39,524
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	17,399
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	15,136
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	26,956
Financing Receivable, Revolving	28,336
Financing receivable, before allowance for credit loss	157,793	177,981
Commercial and industrial | Nonperforming Loans
Financing Receivable, Allowance for Credit Loss [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	240
Financing Receivable, Revolving	504
Financing receivable, before allowance for credit loss	744	781
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	72,528
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	152,576
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	145,888
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	69,291
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	77,693
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	340,852
Financing Receivable, Revolving	14,959
Financing receivable, before allowance for credit loss	873,787	821,805	818,117
Commercial real estate | Performing Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	72,528
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	152,576
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	145,888
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	69,291
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	77,369
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	339,575
Financing Receivable, Revolving	14,959
Financing receivable, before allowance for credit loss	872,186	819,932
Commercial real estate | Nonperforming Loans
Financing Receivable, Allowance for Credit Loss [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	324
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,277
Financing Receivable, Revolving	0
Financing receivable, before allowance for credit loss	1,601	1,873
Commercial real estate construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	9,045
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	44,246
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	7,420
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,109
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	342
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,538
Financing Receivable, Revolving	7,251
Financing receivable, before allowance for credit loss	73,951	80,470	69,120
Commercial real estate construction | Performing Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	9,045
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	44,246
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	7,420
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,109
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	342
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,538
Financing Receivable, Revolving	7,251
Financing receivable, before allowance for credit loss	73,951	80,470
Commercial real estate construction | Nonperforming Loans
Financing Receivable, Allowance for Credit Loss [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	0
Financing receivable, before allowance for credit loss	0	0
Residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	33,721
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	75,386
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	58,061
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	33,282
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	21,388
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	150,692
Financing Receivable, Revolving	289
Financing receivable, before allowance for credit loss	372,819	362,098	348,475
Residential mortgage | Performing Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	33,721
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	75,386
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	58,061
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	33,282
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	21,388
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	149,704
Financing Receivable, Revolving	289
Financing receivable, before allowance for credit loss	371,831	361,393
Residential mortgage | Nonperforming Loans
Financing Receivable, Allowance for Credit Loss [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	988
Financing Receivable, Revolving	0
Financing receivable, before allowance for credit loss	988	705
Home equity lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	939
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	40
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	99
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	5,052
Financing Receivable, Revolving	78,889
Financing receivable, before allowance for credit loss	85,019	84,141	83,589
Home equity lines of credit | Performing Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	939
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	40
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	99
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	4,726
Financing Receivable, Revolving	78,889
Financing receivable, before allowance for credit loss	84,693	83,643
Home equity lines of credit | Nonperforming Loans
Financing Receivable, Allowance for Credit Loss [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	326
Financing Receivable, Revolving	0
Financing receivable, before allowance for credit loss	326	498
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	1,389
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	3,130
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	971
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	740
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	362
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,331
Financing Receivable, Revolving	1,781
Financing receivable, before allowance for credit loss	9,704	11,334	$ 13,376
Consumer | Performing Loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	1,389
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	3,130
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	971
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	740
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	362
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,331
Financing Receivable, Revolving	1,781
Financing receivable, before allowance for credit loss	9,704	11,334
Consumer | Nonperforming Loans
Financing Receivable, Allowance for Credit Loss [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	0
Financing receivable, before allowance for credit loss	$ 0	$ 0

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses - Schedule of Loan Portfolio Summarized by the Past Due Status (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	$ 1,573,817	$ 1,538,610	$ 1,509,792
Loans Receivable >90 Days and Accruing	769	1,203
30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	1,238	5,899
60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	492	1,517
>90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	1,273	1,620
Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	3,003	9,036
Current
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	1,570,814	1,529,574
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	158,537	178,762	177,115
Loans Receivable >90 Days and Accruing	0	0
Commercial and industrial | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	0	287
Commercial and industrial | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	126	0
Commercial and industrial | >90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	161	162
Commercial and industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	287	449
Commercial and industrial | Current
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	158,250	178,313
Commercial real estate
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	873,787	821,805	818,117
Loans Receivable >90 Days and Accruing	0	0
Commercial real estate | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	419	2,026
Commercial real estate | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	198	350
Commercial real estate | >90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	0	255
Commercial real estate | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	617	2,631
Commercial real estate | Current
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	873,170	819,174
Commercial real estate construction
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	73,951	80,470	69,120
Loans Receivable >90 Days and Accruing	0	0
Commercial real estate construction | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	113	24
Commercial real estate construction | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	18	0
Commercial real estate construction | >90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	0	0
Commercial real estate construction | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	131	24
Commercial real estate construction | Current
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	73,820	80,446
Residential mortgage
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	372,819	362,098	348,475
Loans Receivable >90 Days and Accruing	645	705
Residential mortgage | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	47	2,969
Residential mortgage | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	0	970
Residential mortgage | >90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	988	705
Residential mortgage | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	1,035	4,644
Residential mortgage | Current
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	371,784	357,454
Home equity lines of credit
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	85,019	84,141	83,589
Loans Receivable >90 Days and Accruing	124	498
Home equity lines of credit | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	596	438
Home equity lines of credit | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	123	117
Home equity lines of credit | >90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	124	498
Home equity lines of credit | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	843	1,053
Home equity lines of credit | Current
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	84,176	83,088
Consumer
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	9,704	11,334	$ 13,376
Loans Receivable >90 Days and Accruing	0	0
Consumer | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	63	155
Consumer | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	27	80
Consumer | >90 Days Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	0	0
Consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	90	235
Consumer | Current
Financing Receivable, Past Due [Line Items]
Financing receivable, before allowance for credit loss	$ 9,614	$ 11,099

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses - Summary of Individually Evaluated Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	$ 831	$ 820	$ 1,574
Individually Evaluated  Loans with No Allowance	2,890	6,115	7,895
Recorded Investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	1,068	1,131
Individually Evaluated  Loans with No Allowance	1,822	4,984
Related Allowance
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	831	820
Individually Evaluated  Loans with No Allowance	0	0
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	647	628	742
Individually Evaluated  Loans with No Allowance	744	781	895
Commercial and industrial | Recorded Investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	744	781
Individually Evaluated  Loans with No Allowance	0	0
Commercial and industrial | Related Allowance
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	647	628
Individually Evaluated  Loans with No Allowance	0	0
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	184	192	832
Individually Evaluated  Loans with No Allowance	1,601	5,334	7,000
Commercial real estate | Recorded Investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	324	350
Individually Evaluated  Loans with No Allowance	1,277	4,984
Commercial real estate | Related Allowance
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	184	192
Individually Evaluated  Loans with No Allowance	0	0
Commercial real estate construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	0	0	0
Individually Evaluated  Loans with No Allowance	0	0	0
Commercial real estate construction | Recorded Investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	0	0
Individually Evaluated  Loans with No Allowance	0	0
Commercial real estate construction | Related Allowance
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	0	0
Individually Evaluated  Loans with No Allowance	0	0
Residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	0	0	0
Individually Evaluated  Loans with No Allowance	343	0	0
Residential mortgage | Recorded Investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	0	0
Individually Evaluated  Loans with No Allowance	343	0
Residential mortgage | Related Allowance
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	0	0
Individually Evaluated  Loans with No Allowance	0	0
Home equity lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	0	0	0
Individually Evaluated  Loans with No Allowance	202	0	$ 0
Home equity lines of credit | Recorded Investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	0	0
Individually Evaluated  Loans with No Allowance	202	0
Home equity lines of credit | Related Allowance
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated Loans with Allowance	0	0
Individually Evaluated  Loans with No Allowance	$ 0	$ 0

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses - Summary of Amortized Cost Basis of Individually Evaluated Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	$ 2,890	$ 6,115	$ 7,895
Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	744
Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	2,146
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	744	781	895
Commercial and industrial | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	744
Commercial and industrial | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	1,601	5,334	7,000
Commercial real estate | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Commercial real estate | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	1,601
Commercial real estate construction
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0	0	0
Commercial real estate construction | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Commercial real estate construction | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Residential mortgage
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	343	0	0
Residential mortgage | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Residential mortgage | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	343
Home equity lines of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	202	0	0
Home equity lines of credit | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Home equity lines of credit | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	202
Consumer
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0	$ 0	$ 0
Consumer | Business Assets
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	0
Consumer | Real Estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually Evaluated  Loans with No Allowance	$ 0

Loans and Allowance for Cred_11

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		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	$ 19,485	$ 18,963	$ 17,861	$ 19,033
Charge-offs	(82)	(38)	(199)	(120)
Recoveries	18	18	44	30
Allowance for Loan Losses, Ending balance	19,148	18,943	19,148	18,943
Ending balance: individually evaluated for impairment	831	1,574	831	1,574	$ 820
Ending balance: collectively evaluated for impairment	18,317	17,369	18,317	17,369	17,041
Loans Receivable, Ending balance	1,573,817	1,509,792	1,573,817	1,509,792	1,538,610
Loans receivables: Ending balance: individually evaluated for impairment	2,890	7,895	2,890	7,895	6,115
Loans Receivable: Ending balance: collectively evaluated for impairment	1,570,927	1,501,897	1,570,927	1,501,897	1,532,495
Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	(273)	0	(176)	0
Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			1,618
Commercial and Industrial
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	2,105	3,280	2,848	3,176
Charge-offs	0	(34)	(29)	(97)
Recoveries	9	5	10	15
Allowance for Loan Losses, Ending balance	1,941	3,116	1,941	3,116
Ending balance: individually evaluated for impairment	647	742	647	742	628
Ending balance: collectively evaluated for impairment	1,294	2,374	1,294	2,374	2,220
Loans Receivable, Ending balance	158,537	177,115	158,537	177,115	178,762
Loans receivables: Ending balance: individually evaluated for impairment	744	895	744	895	781
Loans Receivable: Ending balance: collectively evaluated for impairment	157,793	176,220	157,793	176,220	177,981
Commercial and Industrial | Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	(173)	(135)	(126)	22
Commercial and Industrial | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			(762)
Commercial Real Estate
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	11,032	10,625	10,016	10,716
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for Loan Losses, Ending balance	11,728	10,839	11,728	10,839
Ending balance: individually evaluated for impairment	184	832	184	832	192
Ending balance: collectively evaluated for impairment	11,544	10,007	11,544	10,007	9,824
Loans Receivable, Ending balance	873,787	818,117	873,787	818,117	821,805
Loans receivables: Ending balance: individually evaluated for impairment	1,601	7,000	1,601	7,000	5,334
Loans Receivable: Ending balance: collectively evaluated for impairment	872,186	811,117	872,186	811,117	816,471
Commercial Real Estate | Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	696	214	606	123
Commercial Real Estate | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			1,106
Commercial Real Estate Construction
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	2,465	666	1,000	616
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for Loan Losses, Ending balance	1,885	818	1,885	818
Ending balance: individually evaluated for impairment	0	0	0	0	0
Ending balance: collectively evaluated for impairment	1,885	818	1,885	818	1,000
Loans Receivable, Ending balance	73,951	69,120	73,951	69,120	80,470
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	73,951	69,120	73,951	69,120	80,470
Commercial Real Estate Construction | Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	(580)	152	(462)	202
Commercial Real Estate Construction | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			1,347
Residential Mortgage
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	3,366	3,082	3,029	3,235
Charge-offs	0	(3)	0	(3)
Recoveries	0	5	0	5
Allowance for Loan Losses, Ending balance	3,075	3,199	3,075	3,199
Ending balance: individually evaluated for impairment	0	0	0	0	0
Ending balance: collectively evaluated for impairment	3,075	3,199	3,075	3,199	3,029
Loans Receivable, Ending balance	372,819	348,475	372,819	348,475	362,098
Loans receivables: Ending balance: individually evaluated for impairment	343	0	343	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	372,476	348,475	372,476	348,475	362,098
Residential Mortgage | Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	(291)	115	(251)	(38)
Residential Mortgage | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			297
Home Equity Lines of Credit
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	379	426	347	501
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for Loan Losses, Ending balance	388	396	388	396
Ending balance: individually evaluated for impairment	0	0	0	0	0
Ending balance: collectively evaluated for impairment	388	396	388	396	347
Loans Receivable, Ending balance	85,019	83,589	85,019	83,589	84,141
Loans receivables: Ending balance: individually evaluated for impairment	202	0	202	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	84,817	83,589	84,817	83,589	84,141
Home Equity Lines of Credit | Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	9	(30)	24	(105)
Home Equity Lines of Credit | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			17
Consumer
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	138	385	376	408
Charge-offs	(82)	(1)	(170)	(20)
Recoveries	9	8	34	10
Allowance for Loan Losses, Ending balance	131	427	131	427
Ending balance: individually evaluated for impairment	0	0	0	0	0
Ending balance: collectively evaluated for impairment	131	427	131	427	376
Loans Receivable, Ending balance	9,704	13,376	9,704	13,376	11,334
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	9,704	13,376	9,704	13,376	11,334
Consumer | Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	66	35	33	29
Consumer | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			(142)
Unallocated
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance	0	499	245	381
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Allowance for Loan Losses, Ending balance	0	148	0	148
Ending balance: individually evaluated for impairment	0	0	0	0	0
Ending balance: collectively evaluated for impairment	0	148	0	148	245
Loans Receivable, Ending balance	0	0	0	0	0
Loans receivables: Ending balance: individually evaluated for impairment	0	0	0	0	0
Loans Receivable: Ending balance: collectively evaluated for impairment	0	0	0	0	$ 0
Unallocated | Financing Receivable Excluding Unfunded Commitments
Allowance for Loan Losses [Roll Forward]
Provisions (credits)	$ 0	$ (351)	0	$ (233)
Unallocated | Impact of CECL adoption
Allowance for Loan Losses [Roll Forward]
Allowance for Loan Losses, Beginning balance			$ (245)

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	$ 452,252	$ 553,554
Equity securities with readily determinable fair values	915	1,719	$ 2,609
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Equity securities with readily determinable fair values	915	1,719
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	452,252	553,554
Equity securities with readily determinable fair values	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	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]
Debt securities available for sale	198,830	210,999
Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	238,290	295,718
State and municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	15,235
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	15,132	31,602
Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Equity securities with readily determinable fair values	915	1,719
Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	452,252	553,554
Equity securities with readily determinable fair values	0	0
Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Equity securities with readily determinable fair values	0	0
Recurring | U.S. Government and agencies | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Recurring | U.S. Government and agencies | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	198,830	210,999
Recurring | U.S. Government and agencies | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Recurring | Mortgage-backed securities | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Recurring | Mortgage-backed securities | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	238,290	295,718
Recurring | Mortgage-backed securities | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Recurring | State and municipal | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Recurring | State and municipal | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	15,235
Recurring | State and municipal | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Recurring | Corporate bonds | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Recurring | Corporate bonds | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	15,132	31,602
Recurring | Corporate bonds | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	0
Nonrecurring | Individually evaluated loans | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Nonrecurring | Individually evaluated loans | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	0	0
Nonrecurring | Individually evaluated loans | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	237	3,773
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	452,252	553,554
Equity securities with readily determinable fair values	915	1,719
Fair Value | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	452,252	553,554
Equity securities with readily determinable fair values	915	1,719
Fair Value | Recurring | U.S. Government and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	198,830	210,999
Fair Value | Recurring | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	238,290	295,718
Fair Value | Recurring | State and municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	0	15,235
Fair Value | Recurring | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities available for sale	15,132	31,602
Fair Value | Nonrecurring | Individually evaluated loans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans	$ 237	$ 3,773

Fair Value Measurements - Sch_2

Fair Value Measurements - Schedule of Additional Quantitative Information (Details) - Nonrecurring - Individually evaluated loans - Level 3 $ in Thousands	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Estimate	$ 237	$ 3,773
Measurement Input, Discount Rate
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.91	0.48
Measurement Input, Discount Rate | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.10	0.10
Measurement Input, Discount Rate | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Weighted Average	0.50	0.50

Fair Value Measurements - Sch_3

Fair Value Measurements - Schedule of Carrying Amount, Fair Value and Placement in Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2021
Financial assets:
Interest-bearing deposits with banks	$ 59,145	$ 128,094
Equity securities with readily determinable fair values	915	1,719	$ 2,609
Debt securities available for sale	452,252	553,554
Securities held to maturity	58,133	58,078
Restricted investment in bank stocks	4,877	1,629
Level 1
Financial assets:
Cash and due from banks	6,620	6,977
Interest-bearing deposits with banks	59,145	128,094
Equity securities with readily determinable fair values	915	1,719
Debt securities available for sale	0	0
Securities held to maturity	0	0
Loans held for sale	0	0
Loans, less allowance for credit losses	0	0
Accrued interest receivable	0	0
Restricted investment in bank stocks	0	0
Financial liabilities:
Demand deposits and savings	0	0
Time deposits	0	0
Short-term sweep accounts	0	0
Short & long-term borrowings	0	0
Trust preferred and subordinated debt	0	0
Accrued interest payable	0	0
Off-balance sheet financial instruments	0	0
Level 2
Financial assets:
Cash and due from banks	18,278	33,090
Interest-bearing deposits with banks	0	0
Equity securities with readily determinable fair values	0	0
Debt securities available for sale	452,252	553,554
Securities held to maturity	58,133	58,078
Loans held for sale	0	123
Loans, less allowance for credit losses	0	0
Accrued interest receivable	6,702	6,915
Restricted investment in bank stocks		1,629
Financial liabilities:
Demand deposits and savings	1,752,296	1,905,845
Time deposits	197,480	276,182
Short-term sweep accounts	26,453	41,954
Short & long-term borrowings	85,350	0
Trust preferred and subordinated debt	17,962	18,648
Accrued interest payable	291	51
Off-balance sheet financial instruments	0	0
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
Debt securities available for sale	0	0
Securities held to maturity	0	0
Loans held for sale	0	0
Loans, less allowance for credit losses	1,485,588	1,458,556
Accrued interest receivable	0	0
Restricted investment in bank stocks	0	0
Financial liabilities:
Demand deposits and savings	0	0
Time deposits	0	0
Short-term sweep accounts	0	0
Short & long-term borrowings	0	0
Trust preferred and subordinated debt	0	0
Accrued interest payable	0	0
Off-balance sheet financial instruments	0	0
Carrying Amount
Financial assets:
Cash and due from banks	24,898	40,067
Interest-bearing deposits with banks	59,145	128,094
Equity securities with readily determinable fair values	915	1,719
Debt securities available for sale	452,252	553,554
Securities held to maturity	64,926	64,977
Loans held for sale	0	123
Loans, less allowance for credit losses	1,554,669	1,520,749
Accrued interest receivable	6,702	6,915
Restricted investment in bank stocks	4,877	1,629
Financial liabilities:
Demand deposits and savings	1,752,296	1,905,845
Time deposits	211,458	293,130
Short-term sweep accounts	26,703	41,954
Short & long-term borrowings	85,000	0
Trust preferred and subordinated debt	21,000	21,000
Accrued interest payable	291	51
Off-balance sheet financial instruments	0	0
Fair Value
Financial assets:
Cash and due from banks	24,898	40,067
Interest-bearing deposits with banks	59,145	128,094
Equity securities with readily determinable fair values	915	1,719
Debt securities available for sale	452,252	553,554
Securities held to maturity	58,133	58,078
Loans held for sale	0	123
Loans, less allowance for credit losses	1,485,588	1,458,556
Accrued interest receivable	6,702	6,915
Restricted investment in bank stocks		1,629
Financial liabilities:
Demand deposits and savings	1,752,296	1,905,845
Time deposits	197,480	276,182
Short-term sweep accounts	26,453	41,954
Short & long-term borrowings	85,350	0
Trust preferred and subordinated debt	17,962	18,648
Accrued interest payable	291	51
Off-balance sheet financial instruments	$ 0	$ 0

Deposits - Composition of Depos

Deposits - Composition of Deposits (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Deposits [Abstract]
Noninterest-bearing demand	$ 569,729	$ 595,049
Interest-bearing checking, savings, and money markets	1,182,567	1,310,796
Certificates of deposit of $250,000 or less	177,475	241,562
Certificates of deposit greater than $250,000	33,983	51,568
Total Deposits	$ 1,963,754	$ 2,198,975

Deposits - Time Deposit Maturit

Deposits - Time Deposit Maturities (Details) $ in Thousands	Jun. 30, 2023 USD ($)
Deposits [Abstract]
3 months or less	$ 54,402
Over 3 months through 12 months	103,444
Over 1 year through 3 years	47,242
Over 3 years	6,370
Total	$ 211,458

Borrowings (Details)

Borrowings (Details) - USD ($) $ in Thousands		3 Months Ended
	Mar. 30, 2021	Jun. 30, 2023	Mar. 15, 2023	Dec. 31, 2022
Short-Term Debt [Line Items]
Short-term borrowings		$ 51,703		$ 41,954
Debt Instrument [Line Items]
Long-term debt outstanding		$ 81,000		21,000
Interest rate percentage		5.63%
Amount eligible to borrow from FHLB		$ 813,925
Amount available to borrow from FHLB		$ 728,692
Weighted average rate percentage		4.40%
FHLB Advances
Debt Instrument [Line Items]
Long-term debt outstanding		$ 60,000		0
Subordinated debt
Debt Instrument [Line Items]
Long-term debt outstanding		15,000		15,000
Interest rate percentage	4%
Subordinated debt issued	$ 15,000
Debt Instrument, issuance price, percentage	100%
Subordinated debt | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on prime rate, percentage	3.29%
Securities sold under agreements to repurchase
Short-Term Debt [Line Items]
Short-term borrowings		26,703		41,954
FHLB Advances
Short-Term Debt [Line Items]
Short-term borrowings		25,000		0
Trust preferred subordinated debt, FCBI | Subordinated debt
Debt Instrument [Line Items]
Long-term debt outstanding		6,000		$ 6,000
Subordinated debt issued		$ 6,000
Trust preferred subordinated debt, FCBI | Subordinated debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest rate percentage			7.18%
Basis spread on prime rate, percentage		1.63%