10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q 

(Mark One)

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

For the quarterly period ended June 30, 2023

OR

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

For the transition period from _______ to _______

Commission file number 1-35015

ACNB CORPORATION

(Exact name of Registrant as specified in its charter) 

Pennsylvania	23-2233457
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)

16 Lincoln Square, Gettysburg, Pennsylvania	17325
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (717) 334-3161

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

Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, $2.50 par value per share	ACNB	The NASDAQ Stock Market, LLC

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

Indicate by check mark whether the Registrant has submitted electronically every Interactive Data File required to be submitted and pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the Registrant was required to submit such files).  Yes ☒ No ☐

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

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

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

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

The number of shares of the Registrant’s Common Stock outstanding on August 4, 2023, was 8,564,282.

PART I - FINANCIAL INFORMATION

ACNB CORPORATION

ITEM 1 - FINANCIAL STATEMENTS

CONSOLIDATED STATEMENTS OF CONDITION (UNAUDITED)

 

Dollars in thousands, except per share data	June 30, 2023		December 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	—		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
LIABILITIES AND STOCKHOLDERS’ EQUITY
LIABILITIES
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	—		—
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

The accompanying notes are an integral part of the consolidated financial statements.

2

ACNB CORPORATION

CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)

	Three Months Ended June 30,				Six Months Ended June 30,
Dollars in thousands, except per share data	2023		2022		2023		2022
INTEREST AND DIVIDEND INCOME
Loans, including fees
Taxable	$	18,947	$	16,414	$	37,845	$	32,200
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
Reversal of Credit Losses	(273)		—		(176)		—
Provision for Unfunded Commitments	121		—		397		—
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
Service charges on deposit accounts	989		1,006		1,951		1,964
Income from fiduciary, investment management and brokerage activities	979		816		1,819		1,626
Gain from mortgage loans held for sale	14		145		31		426
Earnings on investment in bank-owned life insurance	484		363		926		690
Net losses on sales or calls of securities	(546)		—		(739)		—
Net (losses) gains on equity securities	(15)		(148)		5		(257)
Gain on assets held for sale	323		—		323		—
Service charges on ATM and debit card transactions	834		865		1,657		1,618
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	$	1.12	$	0.99	$	2.18	$	1.75
Diluted earnings	$	1.12	$	0.99	$	2.17	$	1.75

The accompanying notes are an integral part of the consolidated financial statements.

3

ACNB CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED)

	Three Months Ended June 30,				Six Months Ended June 30,
Dollars in thousands	2023		2022		2023		2022
NET INCOME	$	9,524	$	8,630	$	18,547	$	15,229
OTHER COMPREHENSIVE INCOME
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)	410		—		556		—
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)	265		—		487		—
Total amortization of unrealized losses on investment securities	265		—		487		—
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)	124		79		172		158
Unrecognized net loss, net of income taxes of $0, $0, $0 and $0, respectively (C)	—		—		—		—
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)

The accompanying notes are an integral part of the consolidated financial statements.

(A) Gross amounts are included in net gains on sales or call of securities on the Consolidated Statements of Income in total other income.

(B) 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.

(C) Income tax amounts are included in the provision for income taxes on the Consolidated Statements of Income.

(D) Total unrealized loss remaining on investment securities held to maturity was $2,525,000 at June 30, 2023.

4

ACNB CORPORATION

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (UNAUDITED)

Six Months Ended June 30, 2023 and 2022

Dollars in thousands	Common Stock		Treasury Stock		Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Total Stockholders’ Equity
BALANCE – January 1, 2023	$	22,086	$	(8,927)	$	96,022	$	193,873	$	(58,012)	$	245,042
Cumulative effect for adoption of Topic 326, net of tax	—		—		—		(2,368)		—		(2,368)
Net income	—		—		—		9,023		—		9,023
Other comprehensive income, net of taxes	—		—		—		—		6,052		6,052
Common stock shares issued (5,889 shares)	15		—		173		—		—		188
Repurchase of common stock (850 shares)	—		(29)		—		—		—		(29)
Issuance of restricted common shares, net of forfeiture and shares withheld for taxes (43,074 shares)	97		—		(97)		—		—		—
Compensation expense for restricted shares	—		—		317		—		—		317
Cash dividends declared ($0.28 per share)	—		—		—		(2,384)		—		(2,384)
BALANCE – March 31, 2023	22,198		(8,956)		96,415		198,144		(51,960)		255,841
Net income	—		—		—		9,524		—		9,524
Other comprehensive loss, net of taxes	—		—		—		—		(6,092)		(6,092)
Common stock shares issued (5,526 shares)	14		—		171		—		—		185
Cash dividends declared ($0.28 per share)	—		—		—		(2,389)		—		(2,389)
BALANCE – June 30, 2023	$	22,212	$	(8,956)	$	96,586	$	205,279	$	(58,052)	$	257,069

Dollars in thousands	Common Stock		Treasury Stock		Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Total Stockholders’ Equity
BALANCE – January 1, 2022	$	21,978	$	(2,245)	$	94,688	$	167,238	$	(9,545)	$	272,114
Net income	—		—		—		6,599		—		6,599
Other comprehensive loss, net of taxes	—		—		—		—		(21,359)		(21,359)
Common stock shares issued (5,587 shares)	14		—		169		—		—		183
Restricted stock grants (21,935 shares)	56		—		673		—		—		729
Cash dividends declared ($0.26 per share)	—		—		—		(2,257)		—		(2,257)
BALANCE – March 31, 2022	22,048		(2,245)		95,530		171,580		(30,904)		256,009
Net income	—		—		—		8,630		—		8,630
Other comprehensive loss, net of taxes	—		—		—		—		(12,622)		(12,622)
Common stock shares issued (5,532 shares)	13		—		171		—		—		184
Repurchased shares (88,225 shares)	—		(2,905)		—		—		—		(2,905)
Cash dividends declared ($0.26 per share)	—		—		—		(2,264)		—		(2,264)
BALANCE – June 30, 2022	$	22,061	$	(5,150)	$	95,701	$	177,946	$	(43,526)	$	247,032

The accompanying notes are an integral part of the consolidated financial statements.

5

ACNB CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

	Six Months Ended June 30,
Dollars in thousands	2023		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)		—
Earnings on investment in bank-owned life insurance	(926)		(690)
Loss on sales or calls of securities	739		—
(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		—
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		—
Proceeds from sales of equity securities	591		—
Purchase of investment securities available for sale	—		(204,874)
Purchase of investment securities held to maturity	—		(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	—		(7,800)
Capital expenditures	(106)		(720)
Proceeds from sales of premises and equipment	—		1,093
Proceeds from sales of foreclosed real estate and assets held for sale	2,296		—
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	—		(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	$	—	$	39,683

 The accompanying notes are an integral part of the consolidated financial statements.

6

ACNB CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1.     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.

7

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.

8

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

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is required to apply the loan and refinancing and restructuring guidance to determine whether a modification results in a new loan or a continuation of an existing loan, rather than applying the recognition and measurement guidance for TDRs. The ASU also requires companies to disclose current-period gross write-offs by year of origination for financing receivables and net investment in leases within scope of Subtopic 326-20. ASU 2022-02 is effective March 31, 2023, for entities that have adopted ASU 2016-13, otherwise effective date is the same as ASU 2016-13. The Corporation adopted ASU 2016-13 on January 1, 2023 and simultaneously implemented ASU 2022-02.

2.    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.

3.    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)

The Corporation previously disclosed in its consolidated financial statements for the year ended December 31, 2022, that it had not yet determined the amount the Bank planned on contributing to the defined benefit plan in 2023. As of June 30, 2023, this contribution amount had still not been determined. Effective April 1, 2012, no inactive or former participant in the plan is eligible to again participate in the plan, and no employee hired after March 31, 2012, is eligible to participate in the plan. As of the last annual census, ACNB Bank had a combined 343 active, vested, terminated and retired persons in the plan.

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4.    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.

5.     Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss, net of taxes, are as follows:

In thousands	Unrealized Losses on Securities		Pension Liability		Accumulated Other Comprehensive Loss
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)

6.    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.

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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

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7.    Securities

Amortized cost and fair value of securities at June 30, 2023, and December 31, 2022, were as follows:

In thousands	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
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 Cost		Gross Unrecognized Gains		Gross Unrecognized Losses		Fair Value
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

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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 Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
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 Value		Unrecognized Losses		Fair Value		Unrecognized Losses		Fair Value		Unrecognized Losses
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)

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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 Cost		Fair Value		Amortized Cost		Fair Value
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.

8.    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

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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,

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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.

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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

18

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.

19

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

20

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 and Industrial		Commercial Real Estate		Commercial Real Estate Construction		Residential Mortgage		Home Equity Lines of Credit		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

21

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 Past Due		>90 Days Past Due		Total Past Due		Current		Total Loans Receivable		Loans Receivable >90 Days and Accruing
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 Past Due		>90 Days Past Due		Total Past Due		Current		Total Loans Receivable		Loans Receivable >90 Days and Accruing
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

22

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 No Allowance
In thousands	Recorded Investment		Related Allowance		Recorded Investment		Related Allowance
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

23

The following tables summarize the allowance for credit losses and allowance for loan losses and recorded investment in loans receivable:

In thousands	Commercial and Industrial		Commercial Real Estate		Commercial Real Estate Construction		Residential Mortgage		Home Equity Lines of Credit		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

24

In thousands	Commercial and Industrial		Commercial Real Estate		Commercial Real Estate Construction		Residential Mortgage		Home Equity Lines of Credit		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

9.    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).

25

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. 

26

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	—		—		—		—		—

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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	—		—		—		—		—

10.    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

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11.    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.

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12. 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.

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ACNB CORPORATION

ITEM 2 – MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

INTRODUCTION AND FORWARD-LOOKING STATEMENTS

Introduction

The following is management’s discussion and analysis of the significant changes in the financial condition, results of operations, comprehensive income, capital resources, and liquidity presented in its accompanying consolidated financial statements for ACNB Corporation (the Corporation or ACNB), a financial holding company. Please read this discussion in conjunction with the consolidated financial statements and disclosures included herein. Current performance does not guarantee, assure or indicate similar performance in the future.

Forward-Looking Statements

In addition to historical information, this Form 10-Q may contain forward-looking statements. Examples of forward-looking statements include, but are not limited to, (a) projections or statements regarding future earnings, expenses, net interest income, other income, earnings or loss per share, asset mix and quality, growth prospects, capital structure, and other financial terms, (b) statements of plans and objectives of Management or the Board of Directors, and (c) statements of assumptions, such as economic conditions in the Corporation’s market areas. Such forward-looking statements can be identified by the use of forward-looking terminology such as “believes”, “expects”, “may”, “intends”, “will”, “should”, “anticipates”, or the negative of any of the foregoing or other variations thereon or comparable terminology, or by discussion of strategy. Forward-looking statements are subject to certain risks and uncertainties such as national, regional and local economic conditions, competitive factors, and regulatory limitations. Actual results may differ materially from those projected in the forward-looking statements. Such risks, uncertainties and other factors that could cause actual results and experience to differ from those projected include, but are not limited to, the following: short-term and long-term effects of inflation and rising costs on the Corporation, customers and economy; the continuing banking instability caused by the recent failures and continuing financial uncertainty of various banks which may adversely impact the Corporation and its securities and loan values, deposit stability, capital adequacy, financial condition, operations, liquidity, and results of operations; effects of governmental and fiscal policies, as well as legislative and regulatory changes; effects of new laws and regulations (including laws and regulations concerning taxes, banking, securities and insurance) and their application with which the Corporation and its subsidiaries must comply; impacts of the capital and liquidity requirements of the Basel III standards; effects of changes in accounting policies and practices, as may be adopted by the regulatory agencies, as well as the Financial Accounting Standards Board and other accounting standard setters; ineffectiveness of the business strategy due to changes in current or future market conditions; future actions or inactions of the United States government, including the effects of short-term and long-term federal budget and tax negotiations and a failure to increase the government debt limit or a prolonged shutdown of the federal government; effects of economic conditions particularly with regard to the negative impact of any pandemic, epidemic or health-related crisis and the responses thereto on the operations of the Corporation and current customers, specifically the effect of the economy on loan customers’ ability to repay loans; effects of competition, and of changes in laws and regulations on competition, including industry consolidation and development of competing financial products and services; inflation, securities market and monetary fluctuations; risks of changes in interest rates on the level and composition of deposits, loan demand, and the values of loan collateral, securities, and interest rate protection agreements, as well as interest rate risks; difficulties in acquisitions and integrating and operating acquired business operations, including information technology difficulties; challenges in establishing and maintaining operations in new markets; effects of technology changes; effects of general economic conditions and more specifically in the Corporation’s market areas; failure of assumptions underlying the establishment of reserves for credit losses and estimations of values of collateral and various financial assets and liabilities; acts of war or terrorism or geopolitical instability; disruption of credit and equity markets; ability to manage current levels of impaired assets; loss of certain key officers; ability to maintain the value and image of the Corporation’s brand and protect the Corporation’s intellectual property rights; continued relationships with major customers; and, potential impacts to the Corporation from continually evolving cybersecurity and other technological risks and attacks, including additional costs, reputational damage, regulatory penalties, and financial losses. We caution readers not to place undue reliance on these forward-looking statements. They only reflect Management’s analysis as of this date. The Corporation does not revise or update these forward-looking statements to reflect events or changed circumstances. Please carefully review the risk factors described in other documents the Corporation files from time to time with the Securities and Exchange Commission, including the Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q. Please also carefully review any Current Reports on Form 8-K filed by the Corporation with the Securities and Exchange Commission.

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CRITICAL ACCOUNTING POLICIES

The accounting policies that the Corporation’s management deems to be most important to the portrayal of its financial condition and results of operations, and that require management’s most difficult, subjective or complex judgment, often result in the need to make estimates about the effect of such matters which are inherently uncertain. The following policies are deemed to be critical accounting policies by management:

The allowance for credit losses (ACL) represents an amount which, in management’s judgment, is adequate to absorb expected credit 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 credit losses in the loan portfolio can vary from the amounts actually observed. While management uses available information to recognize expected credit 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 in the interest rate environment which may directly impact prepayment and curtailment rate assumption, and changes in the financial condition of borrowers.

RESULTS OF OPERATIONS

Quarter ended June 30, 2023, compared to Quarter ended June 30, 2022

Executive Summary

Net income for the three months ended June 30, 2023 was $9,524,000 compared to a net income of $8,630,000 for the comparable quarter of last year, an increase of $894,000 or 10.4%. Basic and diluted earnings per share for the three months ended June 30, 2023 and 2022 were $1.12 and $0.99, respectively, a 13.1% increase. The increase in net income for the second quarter of 2023 was driven primarily by an increase in net interest income.

Net Interest Income 

Net interest income totaled $21,990,000 for the three months ended June 30, 2023 compared to $19,804,000 for the comparable quarter of last year, an increase of $2,186,000, or 11.0%. The increase in net interest income can be attributed to a higher net interest margin driven primarily by higher interest rates and a shift to higher-yielding assets. The fully taxable equivalent (FTE) net interest margin for the three months ended June 30, 2023 was 4.11%, a 96 basis points increase from 3.15% for the comparable quarter of last year. Paycheck Protection Program (PPP) fees and purchase accounting accretion totaled $250,000 for the three months ended June 30, 2023 compared to $1,011,000 for the three months ended June 30, 2022. There were no PPP fees for the three months ended June 30, 2023 compared to $482,000 for the comparable quarter of last year.

Average earning assets declined year-over-year driven primarily by cash balances decreasing attributed to anticipated deposit outflows as market rates increased in 2022 and 2023. However, interest income increased by $2,517,000 for the three months ended June 30, 2023 compared to the three months ended June 30, 2022 driven primarily by higher interest rates and a shift to higher-yielding assets. The average yield on earnings assets was 4.33% for the three months ended June 30, 2023, an increase of 104 basis points from the comparable quarter of last year. Interest expense increased by $331,000 for the three months ended June 30, 2023 compared to the three months ended June 30, 2022 driven primarily by an increase in short term and long term borrowings to fund loan growth and deposit outflows. The average rate paid on interest bearing deposits was 0.13% for the three months ended June 30, 2023, a decrease of 2 basis points from the comparable quarter of last year.

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Provision for Credit Losses & Unfunded Commitments

Effective January 1, 2023, the Corporation adopted Accounting Standards Update 2016-13, “Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” referred to as the current expected credit loss model (CECL). This accounting standard requires that credit losses for financial assets and off-balance-sheet credit exposures be measured based on expected credit losses, rather than on incurred credit losses as in prior periods. The Corporation recorded a net decrease to retained earnings of $2.4 million net of tax as of January 1, 2023 for the cumulative effect of adopting Topic 326.

Based on the forward-looking metrics utilized within the CECL model, combined with the current market environment applied to the Bank’s loan portfolio, the provision for credit losses for the three months ended June 30, 2023 was $(273,000), and the provision for unfunded commitments was $121,000 compared to no provision for the comparable quarter of last year. The determination of the provisions was a result of the analysis of the adequacy of the allowances for credit losses and unfunded commitments calculations. Each quarter, the Corporation assesses risks and reserves required compared with the balances in the allowance for credit losses and unfunded commitments.

Other Income

Total other income was $6,194,000 for the three months ended June 30, 2023, up $118,000, or 1.9%, from the comparable quarter of last year. Income from fiduciary, investment management and brokerage activities increased $163,000, or 20.0%, driven primarily by strong market returns and new business generation. Income from mortgage loans held for sale decreased by $131,000, or 90.3%, primarily attributable to a decline in mortgage activity as a result of an increase in the current rate environment. Earnings on investment in bank-owned life insurance increased by $121,000 driven primarily by additional purchases of insurance with a cash surrender value of $12,200,000 during the second half of 2022 and higher net annualized yield on the investments. A net loss of $546,000 was recognized on the sales of securities during the second quarter of 2023, and no securities were sold during the second quarter of 2022. A $15,000 net loss on equity securities was recognized during the second quarter of 2023 compared to a $148,000 net loss during the comparable quarter of last year. Other income in the three months ended June 30, 2023, was up by $71,000, or 32.1%, to $292,000 primarily from fee income derived on excess liquidity and fee income from letter of credit origination. During the three months ended June 30, 2023, three previously closed community banking offices were sold for a gain of $323,000.

Other Expenses

Other expenses for the quarter ended June 30, 2023 were $16,281,000 an increase of $1,275,000, or 8.5%, from the comparable quarter of last year. The largest expense is salaries and employee benefits, which increased by $510,000, or 5.5%, from the comparable quarter of last year. The increase in salaries and employee benefits expense was driven primarily by a $308,000 increase in base wages, an increase in stock-based compensation expense of $138,000, a $157,000 increase in pension expense, and an increase in the Bank’s salary continuation plan expense of $149,000 partially offset by a $112,000 reduction in the extended leave reserve expense and a $200,000 increase in higher net deferred expenses for new loan originations due to strong loan growth. Net occupancy expense increased by $63,000, or 6.7%, during the period driven primarily by a discrete expense for new flooring at a community banking office and an overall increase in expense for ongoing maintenance. Equipment expense increased by $96,000, or 6.3%, driven primarily by expenses related to ACNB Bank’s core processing system as well as ongoing expenses related to the new loan origination system that was implemented in late 2022. Professional services expense totaled $601,000 during the second quarter of 2023 as compared to $430,000 for the comparable quarter of last year, an increase of $171,000, or 39.8%. The increase in professional services expense was driven primarily by additional expenses related to employee recruiting, legal and consulting services for various projects within the organization. Marketing and corporate relations expenses were $159,000 for the second quarter of 2023 compared to $67,000 for the comparable quarter of last year. The increase was driven by $72,000 in expenses related to the rebranding of ACNB Bank’s Maryland banking divisions. Supplies and postage expense increased by 1.5% due to variation in the timing of necessary replenishments. Other operating expenses increased $435,000, or 29.4%, driven primarily by a loss of $142,000 as a result of writing off an investment in a title agency, a mark-to-market loss of $83,000 related to a Small Business Investment Company (“SBIC”) fund, an increase in costs for the Bank’s internet banking activity of $60,000, a $43,000 increase to loan-related insurance costs, and an increase in fraud losses.

Provision for Income Taxes

The Corporation recognized income taxes of $2,531,000, or 21.0% of pretax income, during the second quarter of 2023 compared to $2,244,000, or 20.6% of pretax income, during the comparable quarter in 2022. Any variances from the federal

33

statutory rate of 21% are generally due to tax-free income, which includes interest income on tax-free loans and investment securities and income from life insurance policies, federal income tax credits, and the impact of non-tax deductible expense. In addition, both years include Maryland corporation income taxes. Low-income housing tax credits were $4,000 and $70,000 for the three months ended June 30, 2023 and 2022, respectively.

Six Months ended June 30, 2023, compared to Six Months ended June 30, 2022

Executive Summary

Net income for the six months ended June 30, 2023, was $18,547,000 compared to $15,229,000 for the comparable period in 2022, an increase of $3,318,000 or 21.8%. Basic and diluted earnings per share for the six month period in 2023 was $2.18 and $2.17, respectively, and $1.75 for both basic and diluted earnings per share for the comparable period of last year. The higher net income for the six months ended June 30, 2023 was driven primarily by increases in net interest income and, to a lesser extent, other income.

Net Interest Income

Net interest income totaled $45,082,000 for the six months ended June 30, 2023 compared to $36,857,000 for the comparable period of last year, an increase of $8,225,000, or 22.3%. The increase in net interest income was primarily a result of higher interest rates and a shift to higher-yielding assets. The FTE net interest margin for the first six months of 2023 was 4.16%, a 124 basis points increase from 2.92% for the comparable period of last year. Year-to-date, PPP fees and purchase accounting accretion totaled $624,000 compared to $2,071,000 for the comparable period of last year. PPP fees were $8,000 for the six months ended June 30, 2023 compared to $950,000 for the comparable period of last year.

Average earning assets declined year-over-year driven primarily by cash balances decreasing attributed to anticipated deposit outflows as market rates increased in 2022 and 2023. However, interest income increased by $8,349,000 for the six months ended June 30, 2023 compared to the comparable period of last year driven by higher interest rates and a shift into higher yielding assets. The average yield on earnings assets increased to 4.35% for the six months ended June 30, 2023 compared to 3.07% for the comparable period of last year, an increase of 128 basis points. Interest expense increased by $124,000 for the six months ended June 30, 2023 compared to the comparable period of last year driven by an increase in short-term and long-term borrowings. The average rate paid on interest-bearing deposits was 0.13% for the six months ended June 30, 2023 a decrease of 3 basis points as compared to 0.16% for the comparable period of last year.

Provision for Credit Losses & Unfunded Commitments

Based on the forward-looking metrics utilized within the CECL model, combined with the current market environment applied to the Bank’s loan portfolio, the provision for credit losses for the first six months of 2023 was $(176,000), and the provision for unfunded commitments was $397,000 compared to no provision for the comparable period of last year. The determination of the provisions was a result of the analysis of the adequacy of the allowances for credit losses and unfunded commitments calculations. Each quarter, the Corporation assesses risks and reserves required compared with the balances in the allowance for credit losses and unfunded commitments.

Other Income

Total other income was $11,178,000 for the six months ended June 30, 2023, up $643,000, or 6.1%, from the first six months of 2022. At the Corporation’s wholly-owned insurance subsidiary, ACNB Insurance Services, Inc., commissions from insurance sales was up by $734,000, or 18.3%, to $4,742,000 during the period primarily due to the acquisition of the business and assets of the Hockley & O’Donnell Agency in the first quarter of 2022 and higher contingent income. Income from fiduciary, investment management and brokerage activities totaled $1,819,000 for the six months ended June 30, 2023, as compared to $1,626,000 for the first six months of 2022, a 11.9% net increase driven primarily by strong market returns and new business generation. Income from mortgage loans held for sale decreased by $395,000, or 92.7%, due to less mortgage activity as a result of an increase in the current rate environment. Earnings on bank-owned life insurance increased by $236,000, or 34.2%, driven primarily by additional purchases of insurance with a cash surrender value of $12,200,000 during the second half of 2022 and higher net annualized yield on the investments. A net loss of $739,000 was recognized on the sales of securities during the first six months of 2023, and no securities were sold during the first six months of 2022. A $5,000 net gain on equity securities was recognized during the first six months of 2023 compared to a $257,000 net loss during the first six months of 2022. Other income in the six months ended June 30, 2023, was up by $3,000, or 0.7%, to $463,000 due to a variety of other fee income variances. During the six months ended June 30, 2023, three previously closed community banking offices were sold for a gain of $323,000.

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Other Expenses

Other expenses for the six months ended June 30, 2023 were $32,563,000, an increase of $4,275,000, or 15.1%, from the first six months of 2022. The increase was driven primarily by increases in salaries & benefits, professional services, equipment and other expenses. The largest expense is salaries and employee benefits, which increased by $3,393,000, or 20.1%, when comparing the first six months of 2023 to the comparable period of last year. The increase in salaries and employee benefits expense was driven primarily by a partial reversal of incentive compensation of $750,000 and a reversal of $484,000 of net deferred loan expense in the first quarter of 2022 as well as an increase in stock-based compensation expense of $390,000, an increase in pension expense of $314,000, higher extended leave reserve expense of $101,000, an increase in Bank’s salary continuation plan expense of $245,000 and a general increase in base wages. Equipment expense increased by $185,000, or 6.1%, driven primarily by expenses related to ACNB Bank’s core processing system as well as ongoing expenses related to the new loan origination system that was implemented in late 2022. Professional services expense totaled $983,000 during the first six months of 2023 compared to $739,000 for the comparable period of last year, an increase of $244,000 or 33.0%. The increase in professional expenses was a result of additional expenses related to the transition of the Corporation’s independent audit firm, higher expenses for consulting services for various projects within the organization and higher expenses for employee recruiting. Marketing and corporate relations expenses were $313,000 for the first six months of 2023 compared to $170,000 for the comparable period of last year. The increase was driven by $176,000 in expenses related to the rebranding of ACNB Bank’s Maryland banking divisions. Supplies and postage expense increased by 7.4% due to variation in the timing of necessary replenishments. Other operating expenses increased $486,000, or 16.6%, driven primarily by a loss of $142,000 as a result of writing off an investment in a title agency, a mark-to-market loss of $83,000 related to an SBIC fund, an increase in costs for the Bank’s internet banking activity of $88,000 and $100,000 of increased loan-related and general purpose insurance costs.

Provision for Income Taxes

The Corporation recognized income taxes of $4,929,000, or 21.0% of pretax income, during the first six months of 2023, as compared to $3,875,000, or 20.3% of pretax income, during the comparable period of last year. Any variances from the federal statutory rate of 21% in the respective periods are generally due to tax-free income, which includes interest income on tax-free loans and investment securities and income from life insurance policies, federal income tax credits, and the impact of non-tax deductible expense. In addition, both years include Maryland corporation income taxes. Low-income housing tax credits were 7,000 and $140,000 for the six months ended June 30, 2023 and 2022, respectively.

FINANCIAL CONDITION

Assets totaled $2,378,151,000 at June 30, 2023 compared to $2,525,507,000 at December 31, 2022. The decrease from December 31, 2022 was driven primarily by a reduction in cash and cash equivalents to fund deposit outflows driven by customers beginning to seek higher yielding alternative deposit and investment products as market interest rates rose during 2022 and 2023 and a reduction in available for sale securities due to general balance sheet and interest rate risk management. Total loans outstanding were $1,573,817,000 at June 30, 2023 compared to $1,538,610,000 at December 31, 2022. Loans increased by $35,207,000, or 2.29%, from December 31, 2022 to June 30, 2023, primarily from strong loan growth in the second quarter of 2023. Total securities were $518,093,000 at June 30, 2023 compared to $620,250,000 at December 31, 2022, a decrease of 16.5%. Total deposits were $1,963,754,000 at June 30, 2023. Deposits decreased by $235,221,000, or 10.7%, since December 31, 2022. Total borrowings were $132,703,000 at June 30, 2023. Total borrowings increased by $69,749,000 or 110.8%, since December 31, 2022 to fund deposit outflows and loan growth.

Investment Securities

ACNB uses investment securities to generate interest and dividend income, manage interest rate risk, provide collateral for certain funding products, and provide liquidity. The investment portfolio is comprised of U.S. Government and agency, mortgage-backed, state and municipal, and corporate securities. These securities provide the appropriate characteristics with respect to credit quality, yield and maturity relative to the management of the overall balance sheet.

At June 30, 2023, the securities balance included a net unrealized loss on available for sale securities of $52,946,000, net of taxes, on amortized cost of $518,307,000 versus a net unrealized loss of $52,734,000, net of taxes, on amortized cost of $617,641,000 at December 31, 2022, and a net unrealized loss of $37,613,000, net of taxes, on amortized cost of $572,948,000 at June 30, 2022. These balances include unamortized, unrealized losses of $2,525,000, $3,012,000, and $3,467,000 as of each

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respective period end which resulted from the transfer of approximately $39.7 million securities from available for sale to held-to-maturity during the second quarter of 2022. The change in fair value of available for sale securities was a result of an increase in market interest rates in 2022 and 2023. The changes in value are deemed to be related solely to changes in market interest rates as the credit quality of the portfolio remained strong.

At June 30, 2023, the securities balance included held to maturity securities with an amortized cost of $64,926,000 and a fair value of $58,133,000 as compared to an amortized cost of $64,977,000 and a fair value of $58,078,000 at December 31, 2022. During the second quarter of 2022, approximately $39.7 million of municipal securities were transferred from available for sale to held to maturity to mitigate the unrealized loss on available for sale securities. The held to maturity securities also include U.S. government pass-through mortgage-backed securities in which the full payment of principal and interest is guaranteed.

The Corporation does not own investments consisting of pools of Alt-A or subprime mortgages, private label mortgage-backed securities, or trust preferred investments.

During 2022, the Corporation deployed excess liquidity by moving approximately $250,000,000 from cash and cash equivalents into higher-yielding securities. These new purchases were consistent with the current investment portfolio, but with higher yields to enhance the net interest margin and net interest income in future quarters. Purchases were primarily in 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 fair values of securities available for sale (carried at fair value) are determined by obtaining quoted market prices on nationally recognized securities exchanges (Level 1) or by matrix pricing (Level 2), which is a mathematical technique used widely in the industry to value debt securities without relying exclusively on quoted market prices for the specific security but rather by relying on the security’s relationship to other benchmark quoted prices. The Corporation uses independent service providers to provide matrix pricing. Please refer to Note 7 — “Securities” in the Notes to Consolidated Financial Statements for more information on the security portfolio and Note 9 — “Fair Value Measurements” in the Notes to Consolidated Financial Statements for more information about fair value.

Loans

Loans outstanding increased by $64,025,000, or 4.2%, at June 30, 2023 from June 30, 2022, and increased by $35,207,000, or 2.3%, from December 31, 2022, to June 30, 2023. The increase in loans from June 30, 2022 and December 31, 2022 is largely attributable to growth in the commercial lending portfolio. Total commercial purpose segments increased $25,238,000, or 2.3%, as compared to December 31, 2022. Commercial loans are spread among diverse categories that include municipal governments/school districts, commercial real estate, commercial real estate construction, and commercial and industrial. Residential real estate mortgage lending increased by $10,721,000, or 3.0%, as compared to December 31, 2022. Non-real estate secured consumer loans comprise 0.6% of the portfolio, with automobile-secured loans representing less than 0.1% of the portfolio.

Most of the Corporation’s lending activities are with customers located within the Bank’s market area of southcentral Pennsylvania and northern Maryland. Included in total loans are loans made to lessors of non-residential properties that total $463,898,000, or 29.5% of total loans, at June 30, 2023. These borrowers are geographically dispersed throughout ACNB’s marketplace and are leasing commercial properties to a varied group of tenants including medical offices, retail space, and other commercial purpose facilities. Because of the varied nature of the tenants, in aggregate, management believes that these loans present an acceptable risk when compared to commercial loans in general. ACNB does not originate or hold Alt-A or subprime mortgages in its loan portfolio. For more information please see Note 8 — “Loans and Allowance for Credit Losses” in the Notes to Consolidated Financial Statements.

Allowance for Credit Losses & Asset Quality

The allowance for credit losses at June 30, 2023, was $19,148,000, or 1.22% of total loans as compared to $17,861,000, or 1.16% of loans, at December 31, 2022. As of January 1, 2023, upon adoption of ASU 2016-13, the allowance for credit losses was $19,479,000, or 1.27% of total loans. The increase from year-end was primarily driven by the adoption of CECL as shown in the table below. For more information please see Note 8 — “Loans and Allowance for Credit Losses” in the Notes to Consolidated Financial Statements.

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Changes in the allowance for credit losses were as follows:

In thousands	Six Months Ended June 30, 2023		Year Ended December 31, 2022
Beginning balance – January 1	$	17,861	$	19,033
Impact of CECL adoption	1,618		—
Provisions charged to operations	(176)		—
Recoveries on charged-off loans	44		114
Loans charged-off	(199)		(1,286)
Ending balance	$	19,148	$	17,861

Loans past due 90 days and still accruing were $769,000 and nonaccrual loans were $2,890,000 as of June 30, 2023. Loans past due 90 days and still accruing were $848,000 at June 30, 2022, while nonaccrual loans were $4,378,000. Loans past due 90 days and still accruing were $1,203,000 at December 31, 2022, while nonaccrual loans were $2,654,000.

Information on nonaccrual loans, by collateral type rather than loan class, at June 30, 2023, as compared to December 31, 2022, is as follows:

Dollars in thousands	Number of Credit Relationships	Balance		Specific Loss Allocations		Current Year Charge-Offs		Location	Originated
June 30, 2023
Owner occupied commercial real estate	7	$	1,944	$	184	$	—	In market	2012 - 2020
Commercial and industrial	3	744		647		—		In market	2017 - 2018
Home equity line of credit	1	202		—		—		In market	2016
Total	11	$	2,890	$	831	$	—
December 31, 2022
Owner occupied commercial real estate	5	$	1,772	$	192	$	—	In market	2012 - 2019
Investment/rental residential real estate	1	101		—		—		In market	2016
Commercial and industrial	2	781		628		—		In market	2017 - 2018
Total	8	$	2,654	$	820	$	—

All nonaccrual loans are to borrowers located within the market area served by the Corporation in southcentral Pennsylvania and northern Maryland. All nonaccrual individually evaluated loans were originated by ACNB’s banking subsidiary.

Premises and Equipment

On January 12, 2022, ACNB Bank announced plans to build a full-service community banking office to serve the Upper Adams area of Adams County, PA. The Upper Adams Office opened in October 2022 and, as a result, three community banking offices were consolidated into the new community banking office. Two of the former community banking offices were subsequently transferred to Assets Held for Sale at fair market value. Also, as part of the Bank’s branch optimization program, in the third quarter of 2022, the Bank announced the planned closure of three additional community banking offices effective December 2022. As a result, two of the former community banking offices were transferred to Assets Held for Sale at fair market value. During the six months ended June 30, 2023, the Bank sold three community banking offices for a net gain on sale of $323,000 which was recorded as a gain on assets held for sale in the Statement of Income. The remaining community banking office building held for sale has a carrying value of $1,418,000 at June 30, 2023.

Foreclosed Assets Held for Resale

The carrying value of real estate acquired through foreclosure was $467,000 which was comprised of one property at June 30,

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2023. This same property was recorded in foreclosed assets held for resale as of December 31, 2022. All acquired properties are actively marketed.

Deposits

ACNB relies on deposits as a primary source of funds for lending activities with total deposits of $1,963,754,000 as of June 30, 2023. Deposits decreased by $400,019,000, or 16.9%, from June 30, 2022, to June 30, 2023, and decreased by $235,221,000, or 10.7%, from December 31, 2022, to June 30, 2023. The decrease in deposits were in interest bearing and non-interest bearing deposits, and was a result of customers seeking higher yielding alternative investment or deposit products as market interest rates rose during 2022 and 2023. Historically, deposits vary between quarters mostly reflecting different levels held by local companies, government units and school districts during different times of the year. Despite the decline in deposits in 2023, the loan-to-deposit ratio was 80.14% at June 30, 2023.

ACNB’s deposit pricing function employs a disciplined pricing approach based upon liquidity needs and alternative funding rates, but also strives to price deposits to be competitive with relevant local competition, including local government investment trusts, credit unions and larger regional banks. Given the Corporation’s funding level, the Corporation made a decision to restrain deposit rates and thereby moderate deposit costs in 2022 and into 2023 despite an increase in market interest rates and an increase in rates by competitors. Interest bearing deposit costs for the second quarter of 2023 were 0.13% compared to 0.15% for the second quarter of 2022. The ratio of uninsured and non-collateralized deposits to total deposits was approximately 18.1% at June 30, 2023.

Borrowings

Short-term borrowings are comprised primarily of securities sold under agreements to repurchase and short-term borrowings from the FHLB. As of June 30, 2023, short-term Bank borrowings were $51,703,000, as compared to $41,954,000 at December 31, 2022. Agreements to repurchase are within the commercial and local government customer base and have attributes similar to core deposits. Investment securities are pledged in sufficient amounts to collateralize these agreements. Compared to year-end 2022, repurchase agreement balances were down $15,251,000, or 36.4%, due to changes in the cash flow position of ACNB’s commercial and local government customer base and lack of competition from non-bank sources. There were $25,000,000 in short-term FHLB borrowings at June 30, 2023 and none at December 31, 2022. Short-term FHLB borrowings are used to even out Bank funding from seasonal and daily fluctuations in the deposit base. During the quarter, the bank borrowed $25,000,000 from the FHLB at a fixed rate of 5.63% for a term of 3 months.

Long-term borrowings consist of longer-term advances from the FHLB that provides term funding for loan assets, and Corporate borrowings that were acquired or originated in regards to the acquisitions and to refund or extend such Corporation borrowings. Long-term borrowings totaled $81,000,000 at June 30, 2023, versus $21,000,000 at December 31, 2022. During the quarter, the bank borrowed $35,000,000 from the FHLB at a fixed rate of 4.23% for a term of 5.0 years to fund deposit outflows and loan growth. Further borrowings will be used when necessary for a variety of risk management and funding purposes. Please refer to the Liquidity discussion below for more information on the Corporation’s ability to borrow.

Capital

ACNB’s capital management strategies have been developed to provide an appropriate rate of return, in the opinion of management, to shareholders, while maintaining its “well-capitalized” regulatory position in relationship to its risk exposure. 

The primary source of additional capital to ACNB is earnings retention, which represents net income less dividends declared. During the first six months of 2023, ACNB earned $18,547,000 and paid dividends of $4,773,000 for a dividend payout ratio of 25.7%. During the first six months of 2022, ACNB earned $15,229,000 and paid dividends of $4,521,000 for a dividend payout ratio of 29.7%.

On October 24, 2022, the Corporation announced that the Board of Directors approved on October 18, 2022, a new plan to repurchase, in open market and privately negotiated transactions, up to 255,575, or approximately 3%, of the outstanding shares of the Corporation’s common stock. This new common stock repurchase program replaces and supersedes any and all earlier announced repurchase plans. As of June 30, 2023, 850 shares of common stock have been repurchased under this new plan.

ACNB Corporation has a Dividend Reinvestment and Stock Purchase Plan that provides registered holders of ACNB Corporation common stock with a convenient way to purchase additional shares of common stock by permitting participants in the plan to automatically reinvest cash dividends on all or a portion of the shares owned and to make quarterly voluntary cash payments under the terms of the plan. Participation in the plan is voluntary, and there are eligibility requirements to participate

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in the plan. Year-to-date June 30, 2023, 11,415 shares were issued under this plan with proceeds in the amount of $373,000. Year-to-date June 30, 2022, 11,119 shares were issued under this plan with proceeds in the amount of $367,000.

On March 30, 2021, the Corporation issued $15,000,000 of subordinated debt in order to pay off existing higher rate debt, to potentially repurchase ACNB common stock and to use for inorganic growth opportunities. Otherwise, the $15,000,000 of subordinated debt qualifies as Tier 2 capital at the Holding Company level, but can be transferred to the Bank where it qualifies as Tier 1 Capital. The debt has a 4.00% fixed-to-floating rate and a stated maturity of March 31, 2031. The debt is redeemable by the Corporation at its option, in whole or in part, on or after March 30, 2026, and at any time upon occurrences of certain unlikely events such as receivership insolvency or liquidation of ACNB or ACNB Bank.

The Corporation has trust preferred subordinated debt that was assumed by ACNB Corporation through the acquisition of Frederick County Bancorp, Inc. (FCBI). 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 $6,000,000 of trust preferred subordinated debt qualifies as Tier 1 capital.

ACNB is subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on ACNB. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, ACNB must meet specific capital guidelines that involve quantitative measures of its assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and reclassifications are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Management believes, as of June 30, 2023, and December 31, 2022, that ACNB’s banking subsidiary met all minimum capital adequacy requirements to which it is subject and is categorized as “well capitalized” for regulatory purposes. There are no subsequent conditions or events that management believes have changed the banking subsidiary’s category.

Regulatory Capital Changes

In July 2013, the federal banking agencies issued final rules to implement the Basel III regulatory capital reforms and changes required by the Dodd-Frank Act. The phase-in period for community banking organizations began January 1, 2015, while larger institutions (generally those with assets of $250 billion or more) began compliance effective January 1, 2014. The final rules call for the following capital requirements:

•a minimum ratio of common Tier 1 capital to risk-weighted assets of 4.5%;

•a minimum ratio of Tier 1 capital to risk-weighted assets of 6.0%;

•a minimum ratio of total capital to risk-weighted assets of 8.0%; and,

•a minimum leverage ratio of 4.0%.

In addition, the final rules established a common equity Tier 1 capital conservation buffer of 2.5% of risk-weighted assets applicable to all banking organizations.

The Corporation calculated regulatory capital ratios as of June 30, 2023, and confirmed no material impact on the capital, operations, liquidity, and earnings of the Corporation and the banking subsidiary from the changes in the regulations.

Risk-Based Capital

In December 2018, the FDIC approved a final rule to address changes to credit loss accounting under GAAP, including banking organizations’ implementation of CECL. The final rule provides banking organizations the option to phase in over a three-year period the day-one adverse effects on regulatory capital that may result from the adoption of the new accounting standard. The Corporation adopted CECL effective January 1, 2023 and elected to implement the capital transition relief over the permissible three-year period.

In 2019, the federal banking agencies issued a final rule to provide an optional simplified measure of capital adequacy for qualifying community banking organizations, including the community bank leverage ratio (CBLR) framework. Generally,

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under the CBLR framework, qualifying community banking organizations with total assets of less than $10 billion, and limited amounts of off-balance sheet exposures and trading assets and liabilities, may elect whether to be subject to the CBLR framework if they have a CBLR of greater than 9% (subsequently reduced to 8% as a COVID-19 relief measure). Qualifying community banking organizations that elect to be subject to the CBLR framework and continue to meet all requirements under the framework would not be subject to risk-based or other leverage capital requirements and, in the case of an insured depository institution, would be considered to have met the well capitalized ratio requirements for purposes of the FDIC’s Prompt Corrective Action framework. The CBLR framework was available for banks to use in their March 31, 2020 Call Report. The Corporation has performed changes to capital adequacy and reporting requirements within the quarterly Call Report, and it opted out of the CBLR framework.

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The capital ratios are as follows:

	Actual1		For Capital Adequacy Purposes2		To Be Well Capitalized Under Prompt Corrective Action Regulations
June 30, 2023
Tier 1 leverage ratio (to average assets)
ACNB Corporation	11.79	%	4.00	%	N/A
ACNB Bank	10.93	%	4.00	%	5.00	%
Common Tier 1 capital ratio (to risk-weighted assets)
ACNB Corporation	15.38	%	4.50	%	N/A
ACNB Bank	14.99	%	4.50	%	6.50	%
Tier 1 risk-based capital ratio (to risk-weighted assets)
ACNB Corporation	15.72	%	6.00	%	N/A
ACNB Bank	14.99	%	6.00	%	8.00	%
Total risk-based capital ratio
ACNB Corporation	17.67	%	8.00	%	N/A
ACNB Bank	16.07	%	8.00	%	10.00	%
March 31, 2023
Tier 1 leverage ratio (to average assets)
ACNB Corporation	11.09	%	4.00	%	N/A
ACNB Bank	10.32	%	4.00	%	5.00	%
Common Tier 1 capital ratio (to risk-weighted assets)
ACNB Corporation	15.21	%	4.50	%	N/A
ACNB Bank	14.84	%	4.50	%	6.50	%
Tier 1 risk-based capital ratio (to risk-weighted assets)
ACNB Corporation	15.56	%	6.00	%	N/A
ACNB Bank	14.84	%	6.00	%	8.00	%
Total risk-based capital ratio
ACNB Corporation	17.56	%	8.00	%	N/A
ACNB Bank	15.96	%	8.00	%	10.00	%
December 31, 2022
Tier 1 leverage ratio (to average assets)
ACNB Corporation	9.91	%	4.00	%	N/A
ACNB Bank	9.50	%	4.00	%	5.00	%
Common Tier 1 capital ratio (to risk-weighted assets)
ACNB Corporation	15.00	%	4.50	%	N/A
ACNB Bank	14.68	%	4.50	%	6.50	%
Tier 1 risk-based capital ratio (to risk-weighted assets)
ACNB Corporation	15.36	%	6.00	%	N/A
ACNB Bank	14.68	%	6.00	%	8.00	%
Total risk-based capital ratio
ACNB Corporation	17.32	%	8.00	%	N/A
ACNB Bank	15.76	%	8.00	%	10.00	%

1 The June 30, 2023 and March 31, 2023 capital ratios for ACNB Corporation are estimated.

2 Ratios do not include capital conservation buffer.

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Liquidity

Effective liquidity management ensures the cash flow requirements of depositors and borrowers as well as the operating cash needs of ACNB are met. ACNB’s funds are available from a variety of sources, including assets that are readily convertible such as interest bearing deposits with banks, maturities and repayments from the securities portfolio, scheduled repayments of loans receivable, the core deposit base, the ability to raise brokered deposits, and the ability to borrow from, including but not limited to, the FHLB, Federal Reserve Discount Window and other contingent sources. 

ACNB manages liquidity by monitoring projected cash inflows and outflows on a daily basis, and believes it has sufficient funding sources to maintain sufficient liquidity under varying degrees of business conditions for liquidity and capital resource requirements for all material short- and long-term cash requirements from known contractual and other obligations.

At June 30, 2023, ACNB’s banking subsidiary could borrow approximately $813,925,000 from the FHLB, of which $728,692,000 was available. At June 30, 2023, ACNB’s banking subsidiary could borrow approximately $3,681,000 from the Discount Window, of which the full amount was available. The underlying collateral at the Discount Window is made up of investment securities held in a joint-custody account under the Corporation’s name.

A new Federal Reserve lending facility, named the Bank Term Funding Program, was enacted in March 2023 that provides banks the ability to borrow on the par value of certain investment securities used to collateralize the account. As of June 30, 2023, ACNB’s banking subsidiary could borrow approximately $222,000,000 from the Bank Term Funding Program, of which the full amount was available.

ACNB’s banking subsidiary maintains several unsecured Fed Funds lines with correspondent banks. As of June 30, 2023, Fed Funds line capacity at the banking subsidiary was $75,000,000, of which the full amount was available. In 2018, ACNB Corporation executed a guaranty for a note related to a $1,500,000 commercial line of credit from a local bank, with normal terms and conditions for such a line, for ACNB Insurance Services, Inc., the borrower and a wholly-owned subsidiary of ACNB Corporation. The commercial line of credit is for general working capital needs as they arise and did not have any outstanding balance as of June 30, 2023. ACNB Corporation maintains a $5,000,000 unsecured line of credit with a correspondent bank. The line of credit remains at full capacity as of June 30, 2023.

Another source of liquidity is securities sold under repurchase agreements to customers of ACNB’s banking subsidiary totaling approximately $26,703,000 and $41,954,000 at June 30, 2023, and December 31, 2022, respectively. These agreements vary in balance according to the cash flow needs of customers and competing accounts at other financial organizations.

The liquidity of the parent company also represents an important aspect of liquidity management. The parent company’s cash outflows consist principally of dividends to shareholders and corporate expenses. The main source of funding for the parent company is the dividends it receives from its subsidiaries. Federal and state banking regulations place certain legal restrictions and other practicable safety and soundness restrictions on dividends paid to the parent company from the subsidiary bank.

Off-Balance Sheet Arrangements

The Corporation is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and, to a lesser extent, standby letters of credit. At June 30, 2023, the Corporation had unfunded outstanding commitments to extend credit of $435,533,000 and outstanding standby letters of credit of $17,997,000. Because these commitments generally have fixed expiration dates and many will expire without being drawn upon, the total commitment level does not necessarily represent future cash requirements.

Market Risks

During March and April 2023 three significant bank failures occurred (Silicon Valley Bank, Signature Bank and First Republic Bank). This was and continues to be accompanied by financial instability at certain additional banks. These bank failures and bank instabilities have created and may continue to create market and other risks, for all financial institutions and banks, including ACNB. These risks include, but are not limited to:

•market risk and loss of confidence in the financial services sector, and/or specific banks;

•deterioration of securities and loan portfolios;

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•deposit volatility and/or reductions with higher volumes and occurring over shorter periods of time;

•increased liquidity demand and utilization of sources of liquidity; and,

•interest rate volatility and abrupt, sudden and greater than usual rate changes.

These factors individually, or in any combination, could materially and adversely affect:

•financial condition;

•operations and results thereof; and,

•stock price.

In addition, the previously mentioned bank failures and instabilities may result in an increase of FDIC deposit insurance premiums and/or result in special FDIC deposit insurance assessments, which may adversely affect the Corporation’s financial condition, operations, results thereof or stock price.

The Corporation cannot predict the impact, timing or duration of such events.

Financial institutions can be exposed to several market risks that may impact the value or future earnings capacity of the organization. These risks involve interest rate risk, foreign currency exchange risk, commodity price risk, and equity market price risk. ACNB’s primary market risk is interest rate risk. Interest rate risk is inherent because, as a financial institution, ACNB derives a significant amount of its operating revenue from “purchasing” funds (customer deposits and wholesale borrowings) at various terms and rates. These funds are then invested into earning assets (primarily loans and investments) at various terms and rates.

RECENT LEGAL AND REGULATORY DEVELOPMENTS

Management has reviewed the recent development sections that were previously disclosed in the Annual Report on Form 10-K for the fiscal period ended December 31, 2022. There are no material changes in the recent legal and regulatory development section as previously disclosed in the recent developments section on the Form 10-K.

SUPERVISION AND REGULATION

Dividends

ACNB is a legal entity separate and distinct from its subsidiary bank. ACNB’s revenues, on a parent company only basis, result primarily from dividends paid to the Corporation by its subsidiaries. Federal and state laws regulate the payment of dividends by ACNB’s subsidiary bank and state laws effect dividends by ACNB’s insurance subsidiary. For further information, please refer to Regulation of Bank below.

Regulation of Bank

The operations of the subsidiary bank are subject to statutes applicable to banks chartered under the banking laws of Pennsylvania, to state nonmember banks of the Federal Reserve, and to banks whose deposits are insured by the FDIC. The subsidiary bank’s operations are also subject to regulations of the Pennsylvania Department of Banking and Securities, Federal Reserve, and FDIC.

The Pennsylvania Department of Banking and Securities, which has primary supervisory authority over banks chartered in Pennsylvania, regularly examines banks in such areas as reserves, loans, investments, management practices, and other aspects of operations. The subsidiary bank is also subject to examination by the FDIC for safety and soundness, as well as consumer compliance. These examinations are designed for the protection of the subsidiary bank’s depositors rather than ACNB’s shareholders. The subsidiary bank must file quarterly and annual reports to the Federal Financial Institutions Examination Council, or FFIEC.

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Monetary and Fiscal Policy

ACNB and its subsidiary bank are affected by the monetary and fiscal policies of government agencies, including the Federal Reserve and FDIC. Through open market securities transactions and changes in its discount rate and reserve requirements, the Board of Governors of the Federal Reserve exerts considerable influence over the cost and availability of funds for lending and investment. The nature and impact of monetary and fiscal policies on future business and earnings of ACNB cannot be predicted at this time. From time to time, various federal and state legislation is proposed that could result in additional regulation of, and restrictions on, the business of ACNB and the subsidiary bank, or otherwise change the business environment. Management cannot predict whether any of this legislation will have a material effect on the business of ACNB.

ITEM 3 – QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Management monitors and evaluates changes in market conditions on a regular basis. Based upon the most recent review, management has determined that there have been no material changes in market risks since year-end 2022. For further discussion of year-end information, please refer to the Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

ITEM 4 – CONTROLS AND PROCEDURES

EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES

As of the end of the period covered by this report, the Corporation carried out an evaluation, under the supervision and with the participation of its management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of its disclosure controls and procedures pursuant to Exchange Act Rule 13a-15. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the Corporation’s disclosure controls and procedures are effective in timely alerting them to material information relating to the Corporation (including its consolidated subsidiaries) required to be included in periodic SEC filings.

Disclosure controls and procedures are Corporation controls and other procedures that are designed to ensure that information required to be disclosed by the Corporation in the reports that it files or submits under the Securities Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.

There were no changes in the Corporation’s internal control over financial reporting during the quarterly period ended June 30, 2023, that have materially affected, or are reasonably likely to materially affect, the internal control over financial reporting.

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PART II – OTHER INFORMATION

ACNB CORPORATION

ITEM 1 – LEGAL PROCEEDINGS

As of June 30, 2023, there were no material pending legal proceedings, other than ordinary routine litigation incidental to the business, to which ACNB or its subsidiaries are a party or by which any of their assets are the subject, which could have a material adverse effect on ACNB or its subsidiaries or their results of operations. In addition, no material proceedings are pending or are known to be threatened or contemplated against the Corporation or its subsidiaries by governmental authorities.

ITEM 1A – RISK FACTORS

Management has reviewed the risk factors that were previously disclosed in the Annual Report on Form 10-K for the fiscal year ended December 31, 2022. There are no material changes in risk factors as previously disclosed in the Form 10-K except as described below.

RECENT NEGATIVE DEVELOPMENTS AFFECTING THE BANKING INDUSTRY, INCLUDING RECENT BANK FAILURES OR CONCERNS REGARDING LIQUIDITY, HAVE ERODED CUSTOMER CONFIDENCE IN THE BANKING SYSTEM AND MAY HAVE A MATERIAL ADVERSE EFFECT ON THE CORPORATION.

Recent events impacting the banking industry, including the high-profile failures or instability of certain banking institutions, have resulted in general uncertainty and eroded confidence in the safety, soundness, and financial strength of the financial services sector. In particular, the bank failures highlighted the potential serious impact of a financial institution unable to meet withdrawal requests by depositors. This has resulted in a growing concern about liquidity in the banking industry, access to and volatile capital markets and reduced stock valuations for certain financial institutions. Similar future events, including additional bank failures or bank instability, could directly or indirectly adversely impact the Corporation’s own liquidity, access to capital markets, stock price, financial condition and results of operations. Further, these recent events may also result in: greater regulatory scrutiny and enforcement; additional and more stringent laws and regulations for the financial services industry; increased FDIC deposit insurance premiums or special FDIC assessments; and higher capital ratio requirements, which as a result could have a material negative impact and adverse effect on the Corporation’s business, financial condition and results of operations.

ITEM 2 – UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

On May 5, 2009, shareholders approved and ratified the ACNB Corporation 2009 Restricted Stock Plan, effective as of February 24, 2009, in which awards shall not exceed, in the aggregate, 200,000 shares of common stock. As of June 30, 2023, there were 25,945 shares of common stock granted as restricted stock awards to employees of the subsidiary bank. The restricted stock plan expired by its own terms after 10 years on February 24, 2019, and no further shares may be issued under the plan. The Corporation’s Registration Statement under the Securities Act of 1933 on Form S-8 for the ACNB Corporation 2009 Restricted Stock Plan was filed with the Securities and Exchange Commission on January 4, 2013. Post-Effective Amendment No. 1 to this Form S-8 was filed with the Commission on March 8, 2019, effectively transferring the 174,055 authorized, but not issued, shares under the ACNB Corporation 2009 Restricted Stock Plan to the ACNB Corporation 2018 Omnibus Stock Incentive Plan.

On May 5, 2009, shareholders approved and adopted the amendment to the Articles of Incorporation of ACNB Corporation to authorize up to 20,000,000 shares of preferred stock, par value $2.50 per share. As of June 30, 2023, there were no issued or outstanding shares of preferred stock.

On January 24, 2011, the ACNB Corporation Dividend Reinvestment and Stock Purchase Plan was introduced for shareholders of record. This plan provides registered holders of ACNB Corporation common stock with a convenient way to purchase additional shares of common stock by permitting participants in the plan to automatically reinvest cash dividends on all or a portion of the shares owned and to make quarterly voluntary cash payments under the terms of the plan. Participation in the plan is voluntary, and there are eligibility requirements to participate in the plan. As of June 30, 2023, there were 246,818 shares of common stock issued through the ACNB Corporation Dividend Reinvestment and Stock Purchase 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, there were 100,746 shares issued under this plan. The maximum number of shares that may yet be granted under this plan is 473,309. The

45

Corporation’s Registration Statement under the Securities Act of 1933 on Form S-8 for the ACNB Corporation 2018 Omnibus Stock Incentive Plan was filed with the Securities and Exchange Commission on March 8, 2019. In addition, on March 8, 2019, the Corporation filed Post-Effective Amendment No. 1 to the Registration Statement on Form S-8 for the ACNB Corporation 2009 Restricted Stock Plan to add the ACNB Corporation 2018 Omnibus Stock Incentive Plan to the registration statement.

On February 25, 2021, the Corporation announced that the Board of Directors approved on February 23, 2021, a plan to repurchase, in open market and privately negotiated transactions, up to 261,000, or approximately 3%, of the outstanding shares of the Corporation’s common stock. This stock repurchase program replaced and superseded any and all earlier announced repurchase plans. There were 261,000 treasury shares purchased under this plan as of December 31, 2022, effectively completing the authorization for the repurchase of shares under this program.

On June 2, 2022, the Corporation entered into an issuer stock repurchase agreement with an independent third-party broker under which the broker was authorized to repurchase the Corporation’s common stock on behalf of the Corporation, subject to certain price, market and volume constraints specified in the agreement. The agreement was established in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended (Exchange Act), and was effective 30 days after the date of the agreement or on July 5, 2022, and terminated, subject to certain other conditions set forth in the agreement, on July 28, 2022. The shares were purchased pursuant to the Corporation’s previously announced stock repurchase program and in a manner consistent with applicable laws and regulations, including the provisions of the safe harbor contained in Rule 10b-18 under the Exchange Act.

On October 24, 2022, the Corporation announced that the Board of Directors approved on October 18, 2022, a new plan to repurchase, in open market and privately negotiated transactions, up to 255,575, or approximately 3%, of the outstanding shares of the Corporation’s common stock. This new common stock repurchase program replaces and supersedes any and all earlier announced repurchase plans. During the quarter ended June 30, 2023, no shares of common stock had been repurchased under this new plan.

	Total number of shares purchased	Average price paid per share		Total number of shares purchased as part of publicly announced plan	Maximum number of shares that may yet be purchased under the plan
April 1 - April 30, 2023	0	$	—	850	254,725
May 1 - May 31, 2023	0	—		850	254,725
June 1 - June 30, 2023	0	—		850	254,725

On November 23, 2022, ACNB Corporation entered into an issuer stock repurchase agreement with an independent third-party broker under which the broker was authorized to repurchase the Corporation’s common stock on behalf of the Corporation, subject to certain price, market and volume constraints specified in the agreement. The agreement was established in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended (Exchange Act), and commenced on December 26, 2022, and terminated, subject to certain other conditions set forth in the agreement, on January 27, 2023. The shares were to be purchased pursuant to the Corporation’s common stock repurchase program, as previously announced on October 24, 2022, and in a manner consistent with applicable laws and regulations, including the provisions of the safe harbor contained in Rule 10b-18 under the Exchange Act.

ITEM 3 – DEFAULTS UPON SENIOR SECURITIES – NOTHING TO REPORT.

ITEM 4 – MINE SAFETY DISCLOSURES – NOT APPLICABLE.

ITEM 5 – OTHER INFORMATION – NOTHING TO REPORT.

46

ITEM 6 – EXHIBITS

The following exhibits are included in this report:

Exhibit 2.1	Agreement and Plan of Reorganization by and among ACNB Corporation, ACNB South Acquisition Subsidiary, LLC, ACNB Bank, New Windsor Bancorp, Inc., and New Windsor State Bank dated as of November 21, 2016, as amended. (Incorporated by reference to Annex A of the Registrant’s Registration Statement No. 333-215914 on Form S-4, filed with the Commission on February 6, 2017.) Schedules are omitted; the Registrant agrees to furnish copies of Schedules to the Securities and Exchange Commission upon request.
Exhibit 2.2	Amendment No. 2 to Agreement and Plan of Reorganization by and among ACNB Corporation, ACNB South Acquisition Subsidiary, LLC, ACNB Bank, New Windsor Bancorp, Inc., and New Windsor State Bank dated as of April 18, 2017. (Incorporated by reference to Exhibit 2.2 of the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2017, filed with the Commission on August 4, 2017.)
Exhibit 2.3	Agreement and Plan of Reorganization by and among ACNB Corporation, ACNB South Acquisition Subsidiary, LLC, ACNB Bank, Frederick County Bancorp, Inc. and Frederick County Bank dated as of July 1, 2019. (Incorporated by reference to Annex A of the Registrant’s Registration Statement No. 333-233791 on Form S-4, filed with the Commission on September 16, 2019.) Schedules are omitted; the Registrant agrees to furnish copies of Schedules to the Securities and Exchange Commission upon request.
Exhibit 3(i)	Amended and Restated Articles of Incorporation of ACNB Corporation. (Incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on Form 8-K, filed with the Commission on May 7, 2018.)
Exhibit 3(ii)	Amended and Restated Bylaws of ACNB Corporation. (Incorporated by reference to Exhibit 3.2 of the Registrant’s Current Report on Form 8-K, filed with the Commission on November 21, 2022.)
Exhibit 4.1	Form of ACNB Corporation 4.00% Fixed-to-Floating Rate Subordinated Note due March 31, 2031. (Incorporated by reference to Exhibit 4.1 of the Registrant’s Current Report on Form 8-K, filed with the Commission on March 30, 2021.)
Exhibit 10.1	ACNB Bank Amended and Restated Executive Supplemental Life Insurance Plan — Applicable to James P. Helt, David W. Cathell, Lynda L. Glass and Douglas A. Seibel. (Incorporated by reference to Exhibit 10.3 of the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2014, filed with the Commission on March 6, 2015.)
Exhibit 10.2	ACNB Bank Amended and Restated Director Supplemental Life Insurance Plan — Applicable to Kimberly S. Chaney, Frank Elsner, III, Todd L. Herring, Scott L. Kelley, James J. Lott, Donna M. Newell, Daniel W. Potts, D. Arthur Seibel, Jr. and Alan J. Stock. (Incorporated by reference to Exhibit 10.4 of the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2014, filed with the Commission on March 6, 2015.)
Exhibit 10.3	ACNB Bank Amended and Restated Director Deferred Fee Plan — Applicable to Kimberly S. Chaney, Frank Elsner, III, Todd L. Herring, Scott L. Kelley, James J. Lott, Donna M. Newell, Marian B. Schultz, D. Arthur Seibel, Jr., Alan J. Stock and James E. Williams. (Incorporated by reference to Exhibit 99.1 of the Registrant’s Current Report on Form 8-K, filed with the Commission on January 6, 2012.)
Exhibit 10.4	ACNB Bank Salary Savings Plan. (Incorporated by reference to Exhibit 10.4 of the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2022, filed with the Commission on November 4, 2022.)
Exhibit 10.5	Group Pension Plan for Employees of ACNB Bank. (Incorporated by reference to Exhibit 10.5 of the Registrant’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2022, filed with the Commission on November 4, 2022.)

47

Exhibit 10.6	Amended and Restated Employment Agreement between ACNB Corporation, Adams County National Bank and Lynda L. Glass dated as of December 31, 2008. (Incorporated by reference to Exhibit 10.10 of the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2008, filed with the Commission on March 13, 2009.)
Exhibit 10.7	ACNB Corporation 2009 Restricted Stock Plan. (Incorporated by reference to Appendix C of the Registrant’s Definitive Proxy Statement on Schedule 14A, filed with the Commission on March 25, 2009.)
Exhibit 10.8	Salary Continuation Agreement by and between ACNB Bank and Lynda L. Glass dated as of March 28, 2012. (Incorporated by reference to Exhibit 99.2 of the Registrant’s Current Report on Form 8-K, filed with the Commission on April 3, 2012.)
Exhibit 10.9	Salary Continuation Agreement by and between ACNB Bank and David W. Cathell dated as of March 28, 2012. (Incorporated by reference to Exhibit 99.3 of the Registrant’s Current Report on Form 8-K, filed with the Commission on April 3, 2012.)
Exhibit 10.10	Amended and Restated 1996 Salary Continuation Agreement by and between ACNB Bank and Lynda L. Glass dated as of March 28, 2012. (Incorporated by reference to Exhibit 99.5 of the Registrant’s Current Report on Form 8-K, filed with the Commission on April 3, 2012.)
Exhibit 10.11	Salary Continuation Agreement by and between ACNB Bank and James P. Helt dated as of March 28, 2012. (Incorporated by reference to Exhibit 10.20 of the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2013, filed with the Commission on March 7, 2014.)
Exhibit 10.12	ACNB Bank Variable Compensation Plan effective January 1, 2014, as amended. (Incorporated by reference to Exhibit 10.16 of the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2021, filed with the Commission on March 14, 2022.)
Exhibit 10.13	First Amendment to Amended and Restated Employment Agreement by and between ACNB Corporation, ACNB Bank and Lynda L. Glass dated as of December 27, 2016. (Incorporated by reference to Exhibit 99.2 of the Registrant’s Current Report on Form 8-K, filed with the Commission on December 28, 2016.)
Exhibit 10.14	Amended and Restated Employment Agreement by and among ACNB Corporation, ACNB Bank and James P. Helt dated as of October 5, 2022. (Incorporated by reference to Exhibit 99.1 of the Registrant’s Current Report on Form 8-K, filed with the Commission on October 7, 2022.)
Exhibit 10.15	ACNB Corporation 2018 Omnibus Stock Incentive Plan. (Incorporated by reference to Exhibit A of the Registrant’s Definitive Proxy Statement on Schedule 14A, filed with the Commission on March 27, 2018.)
Exhibit 10.16	Form of Exhibit B Split Dollar Policy Endorsement to ACNB Bank Amended and Restated Director Supplemental Life Insurance Plan dated November 27, 2018. (Incorporated by reference to Exhibit 99.4 of the Registrant’s Current Report on Form 8-K, filed with the Commission on November 28, 2018.)
Exhibit 10.17	Salary Continuation Agreement by and between ACNB Bank and James P. Helt dated as of November 27, 2018. (Incorporated by reference to Exhibit 99.1 of the Registrant’s Current Report on Form 8-K, filed with the Commission on November 28, 2018.)
Exhibit 10.18	Form of Subordinated Note Purchase Agreement dated March 30, 2021, by and among ACNB Corporation and the Purchasers. (Incorporated by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K, filed with the Commission on March 30, 2021.)
Exhibit 10.19	Amended and Restated Employment Agreement by and among ACNB Corporation, ACNB Bank and Jason H. Weber dated as of October 5, 2022. (Incorporated by reference to Exhibit 99.2 of the Registrant’s Current Report on Form 8-K, filed with the Commission on October 7, 2022.)

48

Exhibit 10.20	Form of ACNB Bank Variable Compensation Plan Restricted Stock Agreement for Employees dated as of March 15, 2022. (Incorporated by reference to Exhibit 99.3 of the Registrant’s Current Report on Form 8-K, filed with the Commission on March 21, 2022.)
Exhibit 10.21	Form of ACNB Bank Variable Compensation Plan Restricted Stock Agreement for Non-Employee Directors dated as of March 15, 2022. (Incorporated by reference to Exhibit 99.4 of the Registrant’s Current Report on Form 8-K, filed with the Commission on March 21, 2022.)
Exhibit 10.22	Salary Continuation Agreement by and between ACNB Bank and James P. Helt dated as of October 5, 2022. (Incorporated by reference to Exhibit 99.3 of the Registrant’s Current Report on Form 8-K, filed with the Commission on October 7, 2022.)
Exhibit 10.23	Salary Continuation Agreement by and between ACNB Bank and Jason H. Weber dated as of October 5, 2022. (Incorporated by reference to Exhibit 99.4 of the Registrant’s Current Report on Form 8-K, filed with the Commission on October 7, 2022.)
Exhibit 10.24	First Amendment to ACNB Bank Salary Continuation Agreement by and between ACNB Bank and James P. Helt dated as of October 5, 2022. (Incorporated by reference to Exhibit 99.5 of the Registrant’s Current Report on Form 8-K, filed with the Commission on October 7, 2022.)
Exhibit 10.25	First Amendment to ACNB Bank Salary Continuation Agreement by and between ACNB Bank and Jason H. Weber dated as of October 5, 2022. (Incorporated by reference to Exhibit 99.7 of the Registrant’s Current Report on Form 8-K, filed with the Commission on October 7, 2022.)
Exhibit 10.26	Salary Continuation Agreement by and between ACNB Bank and Jason H. Weber dated as of January 31, 2022. (Incorporated by reference to Exhibit 99.8 of the Registrant’s Current Report on Form 8-K, filed with the Commission on October 7, 2022.)
Exhibit 10.27	Amended and Restated Employment Agreement between ACNB Bank and Douglas A. Seibel dated as of October 20, 2022. (Incorporated by reference to Exhibit 10.31 of the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2022, filed with the Commission on March 3, 2023.)
Exhibit 10.28	Supplemental Executive Retirement Plan by and between ACNB Bank and Douglas A. Seibel dated as of November 27, 2018. (Incorporated by reference to Exhibit 99.2 of the Registrant’s Current Report on Form 8-K, filed with the Commission on November 28, 2018.)
Exhibit 10.29	Supplemental Executive Retirement Plan by and between ACNB Bank and Douglas A. Seibel dated as of October 20, 2022. (Incorporated by reference to Exhibit 10.33 of the Registrant’s Annual Report on Form 10-K for the year ended December 31, 2022, filed with the Commission on March 3, 2023.)
Exhibit 10.30	Form of ACNB Bank Variable Compensation Plan Restricted Stock Agreement for Employees dated as of March 15, 2023. (Incorporated by reference to Exhibit 99.3 of the Registrant’s Current Report on Form 8-K, filed with the Commission on March 21, 2023.)
Exhibit 18	Preferability Letter from ParenteBeard LLC dated as of August 3, 2012. (Incorporated by reference to Exhibit 18 of the Registrant’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012, filed with the Commission on August 3, 2012.)
Exhibit 31.1	Chief Executive Officer Certification of Quarterly Report on Form 10-Q.
Exhibit 31.2	Chief Financial Officer Certification of Quarterly Report on Form 10-Q.
Exhibit 32.1	Chief Executive Officer Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

49

Exhibit 32.2 Chief Financial Officer Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

Exhibit 101.LAB	XBRL Taxonomy Extension Label Linkbase.
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Exhibit 104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101).

50

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		ACNB CORPORATION (Registrant)
Date:	August 4, 2023	/s/ James P. Helt
		James P. Helt
		President & Chief Executive Officer
		/s/ Jason H. Weber
		Jason H. Weber
		Executive Vice President/Treasurer &
		Chief Financial Officer (Principal Financial Officer)

51

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, James P. Helt, certify that:

1.I have reviewed this report on Form 10-Q of ACNB Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

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

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and,

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and,

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and,

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 4, 2023	By:	/s/ James P. Helt
			James P. Helt
			President & Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Jason H. Weber, certify that:

1.I have reviewed this report on Form 10-Q of ACNB Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

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

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and,

(d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and,

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and,

(b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 4, 2023	By:	/s/ Jason H. Weber
			Jason H. Weber
			Executive Vice President/Treasurer & Chief Financial Officer (Principal Financial Officer)

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the Quarterly Report of ACNB Corporation (the “Company”) on Form 10-Q for the period ending June 30, 2023, as filed with the Securities and Exchange Commission (the “Report”), I, James P. Helt, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and,

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

		By:	/s/ James P. Helt
			James P. Helt
			President & Chief Executive Officer
Date:	August 4, 2023

EX-32.2

EXHIBIT 32.2

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the Quarterly Report of ACNB Corporation (the “Company”) on Form 10-Q for the period ending June 30, 2023, as filed with the Securities and Exchange Commission (the “Report”), I, Jason H. Weber, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and,

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

		By:	/s/ Jason H, Weber
			Jason H. Weber
			Executive Vice President/Treasurer & Chief Financial Officer (Principal Financial Officer)
Date:	August 4, 2023

XML

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, $2.50 par value per share
Trading Symbol	ACNB
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Document Shell Company Report	false
Entity Common Stock, Shares Outstanding		8,564,282
Entity Central Index Key	0000715579
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q2
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CONSOLIDATED STATEMENTS OF CONDITION (UNAUDITED) - USD ($) $ 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

XML

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

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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

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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.

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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

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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)

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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

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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

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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

is required to apply the loan and refinancing and restructuring guidance to determine whether a modification results in a new loan or a continuation of an existing loan, rather than applying the recognition and measurement guidance for TDRs. The ASU also requires companies to disclose current-period gross write-offs by year of origination for financing receivables and net investment in leases within scope of Subtopic 326-20. ASU 2022-02 is effective March 31, 2023, for entities that have adopted ASU 2016-13, otherwise effective date is the same as ASU 2016-13. The Corporation adopted ASU 2016-13 on January 1, 2023 and simultaneously implemented ASU 2022-02.

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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.

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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)

The Corporation previously disclosed in its consolidated financial statements for the year ended December 31, 2022, that it had not yet determined the amount the Bank planned on contributing to the defined benefit plan in 2023. As of June 30, 2023, this contribution amount had still not been determined. Effective April 1, 2012, no inactive or former participant in the plan is eligible to again participate in the plan, and no employee hired after March 31, 2012, is eligible to participate in the plan. As of the last annual census, ACNB Bank had a combined 343 active, vested, terminated and retired persons in the plan.

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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.

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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 Liability		Accumulated Other Comprehensive Loss
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)

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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

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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 Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
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 Cost		Gross Unrecognized Gains		Gross Unrecognized Losses		Fair Value
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 Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
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 Value		Unrecognized Losses		Fair Value		Unrecognized Losses		Fair Value		Unrecognized Losses
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 Cost		Fair Value		Amortized Cost		Fair Value
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.

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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 and Industrial		Commercial Real Estate		Commercial Real Estate Construction		Residential Mortgage		Home Equity Lines of Credit		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 Past Due		>90 Days Past Due		Total Past Due		Current		Total Loans Receivable		Loans Receivable >90 Days and Accruing
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 Past Due		>90 Days Past Due		Total Past Due		Current		Total Loans Receivable		Loans Receivable >90 Days and Accruing
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 No Allowance
In thousands	Recorded Investment		Related Allowance		Recorded Investment		Related Allowance
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 and Industrial		Commercial Real Estate		Commercial Real Estate Construction		Residential Mortgage		Home Equity Lines of Credit		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 and Industrial		Commercial Real Estate		Commercial Real Estate Construction		Residential Mortgage		Home Equity Lines of Credit		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

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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	—		—		—		—		—

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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

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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.

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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.

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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.

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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

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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)

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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 Liability		Accumulated Other Comprehensive Loss
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)

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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

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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 Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
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 Cost		Gross Unrecognized Gains		Gross Unrecognized Losses		Fair Value
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 Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
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 Value		Unrecognized Losses		Fair Value		Unrecognized Losses		Fair Value		Unrecognized Losses
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 Cost		Fair Value		Amortized Cost		Fair Value
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		—

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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 and Industrial		Commercial Real Estate		Commercial Real Estate Construction		Residential Mortgage		Home Equity Lines of Credit		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 Past Due		>90 Days Past Due		Total Past Due		Current		Total Loans Receivable		Loans Receivable >90 Days and Accruing
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 Past Due		>90 Days Past Due		Total Past Due		Current		Total Loans Receivable		Loans Receivable >90 Days and Accruing
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 No Allowance
In thousands	Recorded Investment		Related Allowance		Recorded Investment		Related Allowance
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 and Industrial		Commercial Real Estate		Commercial Real Estate Construction		Residential Mortgage		Home Equity Lines of Credit		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 and Industrial		Commercial Real Estate		Commercial Real Estate Construction		Residential Mortgage		Home Equity Lines of Credit		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

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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	—		—		—		—		—

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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

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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

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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

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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

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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

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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

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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

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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.

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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)	80.00%
Maximum | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable term	30 years
Loan-to-value ratio (no greater than)	80.00%
Loan-to-value ratio that requires private mortgage insurance (in excess of)	80.00%
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)	90.00%

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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

XML

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

XML

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

XML

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

XML

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

XML

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)

XML

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

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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

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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

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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

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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

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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	4.00%
Subordinated debt issued	$ 15,000
Debt Instrument, issuance price, percentage	100.00%
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%