Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] SECURITIES: Amortization of unrealized losses on securities transferred to held to maturity, income taxes OCI, Debt Securities, Held-to-Maturity, Transfer from Available-for-Sale, Unrealized Holding Gain (Loss), Tax OCI, Debt Securities, Held-to-Maturity, Transfer from Available-for-Sale, Unrealized Holding Gain (Loss), Tax Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Loans held for sale Financing Receivable, Held-for-Sale Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff Statistical Measurement [Domain] Statistical Measurement [Domain] Short-Term Debt, Type [Axis] Short-Term Debt, Type [Axis] Title of 12(b) Security Title of 12(b) Security Carrying Amount Reported Value Measurement [Member] Document Fiscal Year Focus Document Fiscal Year Focus Time Deposit [Axis] Time Deposit [Axis] Time Deposit Merger-related Business Combination, Acquisition-Related Cost, Expense Weighted average rate percentage Debt, Weighted Average Interest Rate Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Financing Receivable, Nonaccrual [Table] Financing Receivable, Nonaccrual [Table] Segment Reporting [Abstract] Segment Reporting [Abstract] Total deposits Deposits Common stock, $2.50 par value, 40,000,000 and 20,000,000 shares authorized; 11,079,210 and 11,028,152 shares issued; 10,169,930 and 10,372,251 shares outstanding at June 30, 2026 and December 31, 2025, respectively Common Stock, Value, Issued Total Interest Expense Interest expense Interest expense Interest Expense, Operating and Nonoperating Federal Home Loan Bank, Advance, Maturity, Year Two Federal Home Loan Bank, Advance, Maturity, Year Two Schedule of long-term debt outstanding Schedule of Long-Term Debt Instruments [Table Text Block] Federal Home Loan Bank, Advance, Maturity, Average Interest Rate, Year Three Federal Home Loan Bank, Advance, Maturity, Average Interest Rate, Year Three Retirement Benefits Retirement Benefits [Text Block] Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Available for Sale Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Investments in low-income housing partnerships Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Long-term borrowings Interest Expense, Federal Home Loan Bank and Federal Reserve Bank Advances, Long-Term Compensation expense for restricted shares APIC, Share-Based Payment Arrangement, Restricted Stock Unit, Increase for Cost Recognition Derivative Instrument [Axis] Derivative Instrument [Axis] Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] Other Other Noninterest Expense Measurement Frequency [Axis] Measurement Frequency [Axis] Schedule of loans by year of origination including credit quality indicators Financing Receivable, Loan Portfolio Class [Table Text Block] Financing Receivable, Loan Portfolio Class Cash paid for State income taxes Income Tax Paid, State and Local, before Refund Received U.S. Government and agencies US Treasury and Government [Member] Income tax expense Current Income Tax Expense (Benefit) Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Financing Receivable, Modified, Past Due Financing Receivable, Modified, Past Due [Table Text Block] Gross Unrealized Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Standby Letters of Credit Standby Letters of Credit [Member] Depreciation and amortization Other Depreciation and Amortization Deposits Deposit Liabilities Disclosures [Text Block] Held to Maturity Held to Maturity Debt Securities, Held-to-Maturity, Maturity [Abstract] Mortgage loans originated for sale Payment for Origination, Loan, Mortgage, Held-for-Sale OTHER COMPREHENSIVE INCOME Other Comprehensive Income (Loss), Net of Tax [Abstract] Stock Issued During Period, Value, Acquisitions Stock Issued During Period, Value, Acquisitions INVESTMENT SECURITIES OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, after Tax [Abstract] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Not Rated Not Rated [Member] Not Rated Entity Address, State or Province Entity Address, State or Province Total Unrealized Losses Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Capital expenditures Segment Reporting, Long-Lived Asset, Expenditure for Addition Less than 1 year Time Deposit Maturities, Year One Intangible assets, net Intangible Asset, Excluding Goodwill, after Accumulated Amortization Mortgage-backed securities Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, without Single Maturity Date Weighted average shares of common stock outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Financing Receivable, Modified Financing Receivable, Modified [Table Text Block] Insurance Insurance Reporting Segment [Member] A component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. Net amortization of investment securities premiums Accretion (Amortization) of Discounts and Premiums, Investments Federal Home Loan Bank, Advance, Maturity, Average Interest Rate, Year One Federal Home Loan Bank, Advance, Maturity, Average Interest Rate, Year One Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Real estate construction Real Estate Construction Construction Loans [Member] Number of Reportable Segments Number of Reportable Segments Interest-bearing deposits with banks Interest-bearing deposits with banks Interest-Bearing Deposits in Banks and Other Financial Institutions Over 5 years through 10 years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Short-Term Debt, Type [Domain] Short-Term Debt, Type [Domain] Decrease (increase) in interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Total Noninterest Income Other income Noninterest Income Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Securities sold under agreements to repurchase Securities Sold under Agreements to Repurchase [Member] Entity Address, City or Town Entity Address, City or Town Bank par value Federal Home Loan Bank Stock Money market Deposits, Money Market Deposits PENSION: Unrecognized net gain, income tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Receivables [Abstract] Receivables [Abstract] Loans and Allowance for Credit Losses Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Time Time Time Deposits Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Banking Banking Reporting Segment [Member] Banking Reporting Segment 1 - 2 years Time Deposit Maturities, Year Two Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Debt Issuance Costs, Gross Debt Issuance Costs, Gross Debt Securities, Held-to-Maturity [Table] Debt Securities, Held-to-Maturity [Table] Supplemental disclosures of certain noncash activities: Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract] Weighted Average Assets, Fair Value Measurement Input Assets, Fair Value Measurement Input Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Net (purchases) redemption of restricted investment in bank stocks Payments for (Proceeds from) Federal Home Loan Bank Stock Commercial line of credit borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Other comprehensive income (loss), net of taxes Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] ≥ 90 Days Past Due Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Stock Repurchase Program, Number of Shares Authorized to be Repurchased, Percentage of Outstanding Shares Stock Repurchase Program, Number of Shares Authorized to be Repurchased, Percentage of Outstanding Shares Stock Repurchase Program, Number of Shares Authorized to be Repurchased, Percentage of Outstanding Shares Dividends Dividend Income, Operating Total unrealized gains on interest rate derivatives used in cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Equipment Equipment Expense Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Insurance commissions Insurance Commissions and Fees Treasury stock, at cost, 909,280 and 655,901 shares at June 30, 2026 and December 31, 2025, respectively Treasury Stock, Value Financing Receivable, Allowance for Credit Loss, Writeoff Charge-offs Financing Receivable, Allowance for Credit Loss, Writeoff Recently Issued Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Number Of Community Banking Offices, Traditions Number Of Community Banking Offices, Traditions Number Of Community Banking Offices, Traditions Savings Deposits, Savings Deposits Schedule of Segment Information Segment Reporting [Table Text Block] DERIVATIVE FINANCIAL INSTRUMENTS: Unrealized gains on interest rate derivatives used in cash flow hedges, income taxes Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax Amortization of issuance costs on long-term borrowings Amortization of Debt Issuance Costs Unsecured debt Unsecured Debt [Member] TOTAL OTHER COMPREHENSIVE INCOME (LOSS) Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent DERIVATIVE FINANCIAL INSTRUMENTS Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax, Parent [Abstract] Long-term borrowings Long-term debt outstanding Long-Term Debt Over 1 year through 5 years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Document Period End Date Document Period End Date Unrealized Losses, Less than 12 Months Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Net Cash (Used in) Provided by Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Amortization of unrealized losses on AFS investment securities transferred to HTM, net of income tax expense of $20, $49, $46 and $105, respectively OCI, Debt Securities, Held-to-Maturity, Transfer from Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, After Tax OCI, Debt Securities, Held-to-Maturity, Transfer from Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, After Tax Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Subordinated debt issued Debt Instrument, Face Amount Over 5 years through 10 years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Security Exchange Name Security Exchange Name Gross losses Debt Securities, Available-for-Sale, Realized Loss Debt Instrument, Interest Rate, Effective Percentage Debt Instrument, Interest Rate, Effective Percentage SECURITIES: Unrealized gains (losses) arising during the period, income taxes OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax Over 10 years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Loans Financing Receivable, before Allowance for Credit Loss Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Document Shell Company Report Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Nonperforming Loans Nonperforming Loans [Member] Nonperforming Loans Over 1 year through 5 years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year One through Five Interest-bearing demand deposits Interest-Bearing Domestic Deposit, Demand Number of Shares Authorized Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage Fair Value, 12 Months or More Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Name Outstanding Recovery, Individual Name SECURITIES: Reclassification adjustment for gains included in net income, income taxes Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax PER SHARE DATA Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Schedule of Weighted Average Number of Shares Schedule of Weighted Average Number of Shares [Table Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] 1 year or less Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Year One Total Liabilities Liabilities Trading Symbol Trading Symbol Measurement Input, Discount Rate Measurement Input, Discount Rate [Member] Geographical [Domain] Geographical [Domain] Capital expenditures Payments to Acquire Property, Plant, and Equipment Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Financing Receivable, Allowance for Credit Loss [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Company Selected Measure Name Company Selected Measure Name Purchase of investment securities available for sale Payments to Acquire Debt Securities, Available-for-Sale Schedule of Investments [Table] Schedule of Investments [Table] Total Fair Value Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value 1 year or less Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Total unrealized (loss) gain on AFS investment securities OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Dealer Counterparties Dealer Counterparties [Member] Dealer Counterparties Over 1 year through 5 years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Time Deposit Maturities Time Deposit Maturities [Table Text Block] Net Change Related to Defined Benefit Pension Plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Deposit Liability [Table] Deposit Liability [Table] Credit Facility [Domain] Credit Facility [Domain] Fair Value by Asset Class [Domain] Asset Class [Domain] CASH FLOWS FROM OPERATING ACTIVITIES Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Total nonaccrual loans Financing Receivable, Nonaccrual Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Weighted average shares of common stock outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Gain on assets held for sale Gain (Loss) on Sale of Assets and Asset Impairment Charges Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Financing Receivable, Year One, Originated, Current Fiscal Year Financing Receivable, Year One, Originated, Current Fiscal Year Underlying Security Market Price Change Underlying Security Market Price Change, Percent Financing Receivable Excluding Unfunded Commitments Financing Receivable Excluding Unfunded Commitments [Member] Financing Receivable Excluding Unfunded Commitments Total loans, net of unearned income Financing Receivable, before Allowance for Credit Loss, after Unearned Income Financing Receivable, before Allowance for Credit Loss, after Unearned Income Financing Receivable, Modified [Line Items] Financing Receivable, Modified [Line Items] Gross Unrealized Losses Total Unrealized Losses Debt Securities, Held-to-Maturity, Accumulated Unrecognized Loss CRA Mutual Fund CRA Mutual Fund [Member] CRA Mutual Fund [Member] Commitments to Extend Credit Commitments to Extend Credit [Member] Short-term borrowings Short-Term Debt Dilutive effect of unvested shares (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Mortgage-backed securities Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost Award Timing Predetermined Award Timing Predetermined [Flag] Treasury Stock Treasury Stock, Common [Member] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale [Line Items] INTEREST AND DIVIDEND INCOME Interest and Dividend Income, Operating [Abstract] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Amount of Gain (Loss) Reclassified from AOCI into Income Excluded Component Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), Adjustments, before Tax Level 1 Fair Value, Inputs, Level 1 [Member] Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Derivative Asset, Notional Amount Derivative Asset, Notional Amount Proceeds from sales of loans originated for sale Proceeds from Sale, Loan, Held-for-Sale Collateral Held [Domain] Collateral Held [Domain] All Executive Categories All Executive Categories [Member] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Interest Rate Lock Commitments Interest Rate Lock Commitments [Member] Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Investment Securities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Investment Securities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Investment Securities Residential mortgage-backed securities Residential Mortgage-Backed Securities [Member] Unrecognized net gain, net of income tax expense of $0, $0, $347 and $0, respectively Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Individually evaluated loans Collateral Dependent Impaired Loan [Member] Collateral Dependent Impaired Loan [Member] Total demand and savings Deposits, Demand and Savings Deposits, Demand and Savings Schedule of net periodic benefit expense (income) Schedule of Net Benefit Costs [Table Text Block] Right of use asset Operating Lease, Right-of-Use Asset 1 year or less Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Segment Reporting Segment Reporting [Text Block] Investment Securities Investment in Debt and Equity Securities and Other Trading Assets [Text Block] Proceeds from calls/maturities of investment securities available for sale Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Minimum Minimum [Member] Premises and equipment, net transferred to assets held for sale Premises And Equipment, Net Transferred To Assets Held For Sale Premises And Equipment, Net Transferred To Assets Held For Sale Dividends paid Payments of Ordinary Dividends, Common Stock Fair Value, Less than 12 Months Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value Expiration Date Trading Arrangement Expiration Date Gain from mortgage loans held for sale Mortgage Banking [Member] Postemployment Benefits [Abstract] Postemployment Benefits [Abstract] Gross Unrealized Gains Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain Location, Statement of Income, Balance [Axis] Location, Statement of Income, Balance [Axis] ATM debit card charges ATM Service Charges and Debit Card Transactions [Member] ATM Service Charges and Debit Card Transactions [Member] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Cash and due from banks Cash and Cash Equivalents, Fair Value Disclosure Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Subordinated debt Subordinated Debt [Member] Available for Sale Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract] Other liabilities Other Liabilities Business Combination [Line Items] Business Combination [Line Items] Net Periodic Benefit Income Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Derivative [Table] Derivative [Table] Other Noninterest Income, Other Operating Income Common stock issued, net of restricted stock forfeitures and withheld for taxes Proceeds from Issuance of Common Stock Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Gross gains Debt Securities, Available-for-Sale, Realized Gain Schedule of Held-to-Maturity Securities [Line Items] Schedule of Held-to-Maturity Securities [Line Items] Over 10 years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Financing Receivable, Revolving Financing Receivable, Revolving Financing Receivable, Individually Evaluated for Impairment Financing Receivable, Individually Evaluated for Credit Loss Exercise Price Award Exercise Price CASH FLOWS FROM INVESTING ACTIVITIES Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Restricted stock grants, net of forfeitures and withheld for taxes Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Recurring Fair Value, Recurring [Member] Segment Reporting [Line Items] Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segment [Domain] Segments [Domain] State and municipal State and political subdivisions US States and Political Subdivisions Debt Securities [Member] Restricted stock compensation expense Restricted Stock or Unit Expense Special Mention Special Mention [Member] Proceeds from sales of investment securities available for sale Proceeds from Sale of Debt Securities, Available-for-Sale Debt Instrument, issuance price, percentage Debt Instrument, Issuance Price, Percentage Debt Instrument, Issuance Price, Percentage Borrowings Debt Disclosure [Text Block] Accrued interest payable Interest Payable Repayments on long-term borrowings Repayments of Long-Term Debt Foreclosed assets held for resale Real Estate Acquired Through Foreclosure [Member] Real Estate Acquired Through Foreclosure Allowance for unfunded commitments Financing Receivable, Allowance For Unfunded Commitments Financing Receivable, Allowance For Unfunded Commitments Loans, net Financing Receivable, after Allowance for Credit Loss Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Net accretion of purchase accounting adjustments Net Amortization of Purchase Accounting Adjustments Net Amortization of Purchase Accounting Adjustments Business Combination [Table] Business Combination [Table] Equity Component [Domain] Equity Component [Domain] Loans, including fees: Interest and Fee Income, Financing Receivable [Abstract] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Measurement Input Type [Domain] Measurement Input Type [Domain] Loans, net Loans Receivable, Fair Value Disclosure Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Loans held for sale Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance Available for Sale Fair Value Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Adoption Date Trading Arrangement Adoption Date 3 - 4 years Time Deposit Maturities, Year Four Trust preferred and subordinated debt Subordinated Debt Obligations, Fair Value Disclosure Counterparty Name [Domain] Counterparty Name [Domain] Interest rate percentage Debt Instrument, Interest Rate, Stated Percentage Dividends, Common Stock, Cash Dividends, Common Stock, Cash Total Stockholders’ Equity Beginning balance Ending balance Equity, Attributable to Parent Forward Commitments Forward Commitments [Member] Forward Commitments ASSETS Assets [Abstract] Federal Home Loan Bank, Advance, Maturity, Year Three Federal Home Loan Bank, Advance, Maturity, Year Three Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Available-for-sale, Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Deposit Liability [Line Items] Deposit Liability [Line Items] Lease liability Operating Lease, Liability Non-recurring Fair Value, Nonrecurring [Member] Professional services Professional Fees Insider Trading Policies and Procedures [Line Items] Securities held to maturity, fair value Fair Value Held to Maturity, Fair Value Debt Securities, Held-to-Maturity, Fair Value Taxable Interest Income, Securities, Operating, Taxable Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Short-term borrowings Interest Expense, Short-Term Borrowings Commercial and industrial Commercial and Industrial Commercial Portfolio Segment [Member] Stock Repurchase Program, Number of Shares Authorized to be Repurchased Share Repurchase Program, Authorized, Number of Shares Deferred income tax Deferred Income Tax Expense (Benefit) Gain on sales of assets held for sale Gain (Loss) on sales of Loans, Property and foreclosed real estate The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. This element also includes (gain) loss on sale of loans and other real estate owned. Commercial real estate Commercial Real Estate Commercial Real Estate Portfolio Segment [Member] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Business Combination [Domain] Business Combination [Domain] Commitments and Contingencies Disclosure Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Demand deposits, savings and money markets Demand Deposits and Savings, Fair Value Disclosure Demand Deposits and Savings, Fair Value Disclosure Financial Asset, Period Past Due [Domain] Financial Asset, Aging [Domain] Entity Central Index Key Entity Central Index Key Net Interest Income after Provision for (Reversal of) Credit Losses and Unfunded Commitments Interest Income (Expense), after Provision for Loan Loss Additional paid-in capital Additional Paid in Capital, Common Stock All Adjustments to Compensation All Adjustments to Compensation [Member] Noninterest-bearing demand deposits Noninterest-Bearing Domestic Deposit, Demand Business Combination [Axis] Business Combination [Axis] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net Cash Provided by Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation A+ Rated or Higher A+ Rated or Higher [Member] A+ Rated or Higher Residential mortgage Residential Mortgage Residential Portfolio Segment [Member] Home equity lines of credit Home  Equity Lines  of Credit Home Equity Lines Of Credit Portfolio Segment [Member] Portfolio segment of the company's total financing receivables related to home equity lines of credit financing receivables. Substandard Substandard [Member] Income Statement [Abstract] Income Statement [Abstract] Stockholders’ Equity: Equity, Attributable to Parent [Abstract] Restricted stock grants, net of forfeitures and withheld for taxes (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Schedule of Investments [Line Items] Schedule of Investments [Line Items] Recognition of operating lease right of use assets Recognition of Operating Lease Right of Use Assets, Noncash Recognition of Operating Lease Right of Use Assets, Noncash Designated as Hedging Instrument Designated as Hedging Instrument [Member] Other Intersegment Eliminations [Member] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Financing Receivable, Modified [Table] Financing Receivable, Modified [Table] Basis spread on prime rate, percentage Debt Instrument, Basis Spread on Variable Rate Interest-bearing Interest-Bearing Deposit Liabilities, Domestic City Area Code City Area Code Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Federal Home Loan Bank, Advance, Maturity, Year Four Federal Home Loan Bank, Advance, Maturity, Year Four Name Forgone Recovery, Individual Name Carrying value of securities pledged as collateral as required by law on public and trust deposits, repurchase agreements, and for other purposes Debt Securities, Available-for-Sale, Restricted Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] Total assets Total assets Assets Entity [Domain] Entity [Domain] Extended Maturity Extended Maturity [Member] Schedule of financing receivable collateral-dependent Financing Receivable, Amortized Cost Basis [Table Text Block] Financing Receivable, Amortized Cost Basis Financing Receivable, by Credit Quality Indicator [Domain] Internal Credit Assessment [Domain] Investment Securities: Interest and Dividend Income, Securities, by Taxable Status [Abstract] Recognition of operating lease liabilities Lease Obligation Incurred Total Interest and Dividend Income Interest income Interest and Dividend Income, Operating Operating Segments Operating Segments [Member] Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, 90 Days or More Past Due, Accruing Financing Receivable, 90 Days or More Past Due, Still Accruing Gross Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Mortgage-backed securities Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value Increase in other assets Increase (Decrease) in Other Operating Assets Common stock shares issued (in shares) Stock Issued During Period, Shares, New Issues Net occupancy Occupancy, Net PEO PEO [Member] Measurement Basis [Axis] Measurement Basis [Axis] Goodwill Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Fair Value Inputs, Assets, Quantitative Information [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Performance Rated Performance Rated [Member] Performance Rated Common shares issued Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued, Value The value of shares issued as noncash or part noncash consideration for business or asset acquired. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. 1 year or less Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year Net assets acquired Fair Value of Assets Acquired Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff Retained Earnings Retained Earnings [Member] Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year Net Change Related to Investment Securities AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Schedule of additional quantitative information about assets measured at fair value on a nonrecurring basis Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Unrealized (losses) gains arising during the period, net of income tax (benefit) expense of $(42), $1,220, $(803) and $3,020, respectively OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Schedule of carrying amount, exit pricing concept fair value and placement in the fair value hierarchy Fair Value, by Balance Sheet Grouping [Table Text Block] Financing Receivable, Past Due [Line Items] Financing Receivable, Past Due [Line Items] Corporate bonds Corporate Debt Securities [Member] Diluted earnings (in dollars per share) Earnings Per Share, Diluted Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] 2 - 3 years Time Deposit Maturities, Year Three Loans Financing Receivable, Modified, after 12 Months Entity Current Reporting Status Entity Current Reporting Status Net Cash Provided by (Used in) Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Financing Receivable Information by Credit Quality Indicator [Axis] Internal Credit Assessment [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Provision for (reversal of) credit losses Provisions (reversal of) Financing Receivable, Credit Loss, Expense (Reversal) Intangible assets amortization Intangible Asset, Finite-Lived, Amortization Expense Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Financing Receivable, Originated, More than Five Years before Current Fiscal Year Financing Receivable, Originated, More than Five Years before Current Fiscal Year Without a Related Allowance Financing Receivable, Nonaccrual, Without a Related Allowance Financing Receivable, Nonaccrual, Without a Related Allowance Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Financing Receivable, Modified, Weighted-Average Term Increase from Modification Financing Receivable, Modified, Weighted-Average Term Increase from Modification Unrealized Losses, 12 Months or More Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss CASH FLOWS FROM FINANCING ACTIVITIES Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Revenue from contract with customer, excluding assessed tax Revenue from Contract with Customer, Excluding Assessed Tax Premises and equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Other Other Interest and Dividend Income Schedule of Nonperforming Loans Schedule of Nonperforming Loans [Table Text Block] Schedule of Nonperforming Loans Interest cost Defined Benefit Plan, Interest Cost Earnings Per Share and Restricted Stock Earnings Per Share and Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Earnings Per Share and Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract] Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract] Financial Instruments [Domain] Financial Instruments [Domain] Taxable Interest and Fee Income, Loans and Leases, Taxable Interest and Fee Income, Loans and Leases, Taxable Allowance established for acquired PCD loans Financing Receivable, Allowance for Credit Loss, Purchased with Credit Deterioration Financial assets: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Proceeds from sales of assets held for sale Proceeds from Sale, Property, Held-for-Sale Allowance for credit losses Allowance for Credit Losses, Beginning balance Allowance for Credit Losses, Ending balance Financing Receivable, Allowance for Credit Loss Derivative Asset Derivative Asset Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Deposit Liabilities, Type Deposit Liabilities, Type [Table Text Block] Underlying Securities Award Underlying Securities Amount Total Estimate of Fair Value Measurement [Member] Common stock shares issued Stock Issued During Period, Value, New Issues Decrease in interest payable Increase (Decrease) in Interest Payable, Net Service charges on deposits Deposit Account [Member] Provision for credit losses and unfunded commitments (Reversal Of) Provision For Credit Losses And Unfunded Commitments (Reversal Of) Provision For Credit Losses And Unfunded Commitments Derivative Financial Instruments Financial Instruments Disclosure [Text Block] Issuance of common stock to acquire Traditions (in shares) Stock Issued During Period, Shares, Acquisitions Federal Home Loan Bank, Advance, Maturity, Average Interest Rate, Year Two Federal Home Loan Bank, Advance, Maturity, Average Interest Rate, Year Two Segment Reporting [Table] Segment Reporting [Table] With a Related Allowance Financing Receivable, Nonaccrual, With a Related Allowance Financing Receivable, Nonaccrual, With a Related Allowance Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Provision for credit losses and reversal of unfunded commitments Provision for Other Credit Losses All Trading Arrangements All Trading Arrangements [Member] Derivative, Gain (Loss) on Derivative, Net Derivative, Gain (Loss) on Derivative, Net Fair Value, Less than 12 Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Schedule of fair value measurements by level within the fair value hierarchy and the basis of measurement used Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Trust preferred subordinated debt, FCBI Trust Preferred Subordinated Debt, FCBI [Member] Trust Preferred Subordinated Debt, FCBI [Member] DERIVATIVE FINANCIAL INSTRUMENTS: Reclassification adjustment for net interest rate derivative losses included in net income, income taxes Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Current Fiscal Year End Date Current Fiscal Year End Date Credit quality of HTM debt securities Debt Securities, Held-to-Maturity, Credit Quality Indicator [Table Text Block] Investment securities held to maturity, at amortized cost (fair value $56,576, $57,537) Held to Maturity, Amortized Cost Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Derivative [Line Items] Derivative [Line Items] Number of community banking office locations, ACNB Number of Community Banking Offices, Parent Number of Community Banking Offices, Parent Collateral Held [Axis] Collateral Held [Axis] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Cash dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Service cost Defined Benefit Plan, Service Cost Net increase in short-term borrowings Proceeds from (Repayments of) Short-Term Debt Schedule of amortized cost and fair value by contractual maturity Investments Classified by Contractual Maturity Date [Table Text Block] Amount of Gain Reclassified from OCI into Income Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Other tax Taxes, Other Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Summary of allowance activity for loan losses and recorded investment in loans receivable Financing Receivable, Allowance for Credit Loss [Table Text Block] Common stock, shares issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Tax-exempt Interest and Fee Income, Loans and Leases, Tax-Exempt Interest and Fee Income, Loans and Leases, Tax-Exempt Assets held for sale Asset, Held-for-Sale, Not Part of Disposal Group Treasury stock, shares (in shares) Treasury Stock, Common, Shares Tax-exempt Interest Income, Securities, Operating, Tax Exempt Unrealized Losses, 12 Months or More Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Accumulated Other Comprehensive Loss Comprehensive Income (Loss) Note [Text Block] Statement, Equity Components [Axis] Equity Components [Axis] Equity Components [Axis] Product and Service [Domain] Product and Service [Domain] Amount available to borrow from FHLB Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds Entity Interactive Data Current Entity Interactive Data Current NONINTEREST EXPENSES Noninterest Expense [Abstract] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Over 1 year through 5 years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Risk Participations Risk Participations [Member] Risk Participations Reclassification adjustment for net AFS investment securities gains included in net income, net of income tax effect of $0, $(5), $(11) and $(5), respectively Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Entity Small Business Entity Small Business TOTAL COMPREHENSIVE INCOME Comprehensive Income (Loss), Net of Tax, Attributable to Parent Financing Receivable, Modified, Subsequent Default Financing Receivable, Modified, Subsequent Default Termination Date Trading Arrangement Termination Date Financing Receivable, Nonperforming Loans Financing Receivable, Nonperforming Loans Financing Receivable, Nonperforming Loans Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Liabilities assumed Liabilities Assumed Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Traditions Bancorp, Inc. Traditions Bancorp, Inc. [Member] Traditions Bancorp, Inc. Document Type Document Type Over 10 years Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Net cash and cash equivalents received from acquisition Payments to Acquire Businesses, Net of Cash Acquired Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Financing Receivable, Revolving, Writeoff Financing Receivable, Revolving, Writeoff Fair Value as of Grant Date Award Grant Date Fair Value Debt Instrument, Redemption Price, Percentage Debt Instrument, Redemption Price, Percentage Schedule of unrealized losses and fair value Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Past due period Financing Receivable, Modified, Past Due Period Financing Receivable, Modified, Past Due Period Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table] Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table] Cash paid for Federal income taxes Income Tax Paid, Federal, before Refund Received Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Proceeds from long-term borrowings Proceeds from Issuance of Long-Term Debt Deposits Interest Expense, Domestic Deposits Local Phone Number Local Phone Number Loan to value ratio requirement (no greater than) Loans and Leases Receivable, Loan to Value Ratio Requirement Loans and Leases Receivable, Loan to Value Ratio Requirement Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Number of Residential Mortgage Loans Defaulted Number of Residential Mortgage Loans Defaulted Number of Residential Mortgage Loans Defaulted Unrealized Losses, Less than 12 Months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Proceeds from calls Proceeds from Calls of Debt Securities, Available-for-Sale Proceeds from Calls of Debt Securities, Available-for-Sale Income Before Income Taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Total Revenues Revenues Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Accounting Standards Update and Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Wealth management Fiduciary and Trust [Member] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Collateralized Mortgage Obligations Collateralized Mortgage Obligations [Member] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Amount eligible to borrow from FHLB Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available Counterparty Name [Axis] Counterparty Name [Axis] LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] DEFINED BENEFIT PENSION PLAN Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax [Abstract] All Award Types Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fair Value Measurements Fair Value Disclosures [Text Block] Gain from mortgage loans held for sale Gain (Loss) on Sales of Loans, Net Level 3 Fair Value, Inputs, Level 3 [Member] Held-to-Maturity Amortized Cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date [Abstract] Supplemental disclosures of cash flow information Supplemental Cash Flow Information [Abstract] Reclassification adjustment for net interest rate derivative gain included in net income, net of income tax effect of $(5), $0, $(12) and $0, respectively Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Common stock shares repurchased (in shares) Common stock shares repurchased (in shares) Treasury Stock, Shares, Acquired Restricted investment in bank stocks Restricted investment in bank stocks Equity interest in bank stocks. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). PEO Name PEO Name Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Geographical [Axis] Geographical [Axis] Net Change Related to Derivatives Used for Cash Flow Hedges Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Financial liabilities: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Fair Value, 12 Months or More Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value Schedule of Short-Term Debt [Table] Short-Term Debt [Table] Net Interest Income Interest Income (Expense), Operating and Nonoperating Less than $250,000 Less Than 250,000 [Member] Less Than 250,000 Other assets Other Assets Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] 30–59 Days Past Due Financial Asset, 30 to 59 Days Past Due [Member] Entity Tax Identification Number Entity Tax Identification Number Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Cash and due from banks Cash and Due from Banks Legal Entity [Axis] Legal Entity [Axis] Schedule of classes of loan portfolio summarized by the past due status Financing Receivable, Past Due [Table Text Block] Current Financial Asset, Not Past Due [Member] Unrealized gains on interest rate derivatives used in cash flow hedges, net of income tax expense of $51, $0, $117 and $0, respectively Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Repurchased shares Treasury Stock, Value, Acquired, Cost Method NONINTEREST INCOME Noninterest Income [Abstract] CASH AND CASH EQUIVALENTS — BEGINNING CASH AND CASH EQUIVALENTS — ENDING Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Long-term FHLB advances have a weighted average rate Federal Home Loan Bank, Advances, Weighted Average Interest Rate Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Default period Financing Receivable, Modified, Period From The Original Modification, Default Financing Receivable, Modified, Period From The Original Modification, Default Earnings on investment in bank-owned life insurance Earnings on investment in bank-owned life insurance Bank Owned Life Insurance Income Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Allowance for Loan Losses [Roll Forward] Financing Receivable, Allowance for Credit Loss [Roll Forward] Basis of Presentation and Nature of Operations Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Measurement Frequency [Domain] Measurement Frequency [Domain] Debt Instrument [Axis] Debt Instrument [Axis] Net increase (decrease) in interest-bearing deposits Increase (Decrease) in Time Deposits Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items] Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items] INTEREST EXPENSE Interest Expense, Operating and Nonoperating [Abstract] Salaries and employee benefits Labor and Related Expense Held-to-Maturity Fair Value Debt Securities, Held-to-Maturity, Fair Value, Maturity [Abstract] Net increase in loans Payments for (Proceeds from) Loans and Leases Employee Stock Employee Stock [Member] Proceeds from calls/maturities of investment securities held to maturity Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Over 5 years through 10 years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Schedule of Derivative Instruments in Statement of Financial Position, Fair Value Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Basic earnings (in dollars per share) Earnings Per Share, Basic Measurement Input Type [Axis] Measurement Input Type [Axis] Common stock repurchased Payments for Repurchase of Common Stock Collateralized mortgage obligations Collateralized Mortgage-Backed Securities [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Short-Term Debt Short-Term Debt, Fair Value Derivative Instruments, Gain (Loss) Derivative Instruments, Gain (Loss) [Table Text Block] Amount of Gain Recognized in OCI on Derivative Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Award Type Award Type [Axis] Interest Rate Contract Interest Rate Contract [Member] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Real Estate Real Estate [Member] Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff Net increase in noninterest-bearing deposits Increase (Decrease) in Demand Deposits Retained earnings Retained Earnings (Accumulated Deficit) Amount of Gain (Loss) Recognized in OCI Excluded Component Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax Consumer Consumer Consumer Portfolio Segment [Member] Schedule of short-term debt outstanding Schedule of Short-Term Debt [Table Text Block] Investment in bank-owned life insurance Bank Owned Life Insurance Product and Service [Axis] Product and Service [Axis] Equity securities with readily determinable fair values Fair value at beginning of period Fair value at end of period Equity securities with readily determinable fair values Equity Securities, FV-NI Carroll and Frederick Counties, Maryland Carroll and Frederick Counties, Maryland [Member] Carroll and Frederick Counties, Maryland Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Short-Term Debt [Line Items] Short-Term Debt [Line Items] Common Stock Common Stock [Member] Transfer of Portfolio Loans and Leases to Held-for-sale Including Other Foreclosed Transactions Transfer of Portfolio Loans and Leases to Held-for-sale Including Other Foreclosed Transactions Transfer of Portfolio Loans and Leases to Held-for-sale Including Other Foreclosed Transactions Investment securities available for sale, at estimated fair value Available for Sale, Fair Value Investment securities AFS Debt Securities, Available-for-Sale Schedule of Fair Value, off-Balance-Sheet Risks [Table] Fair Value, off-Balance-Sheet Risk [Table] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Financing Receivable, Unearned Income, before Allowance for Credit Loss Financing Receivable, Unearned Income, before Allowance for Credit Loss Financing Receivable, Unearned Income, before Allowance for Credit Loss Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Performing Loans Performing Loans [Member] Performing Loans Other noninterest expense Other Noninterest Expense, Adjusted Other Noninterest Expense, Adjusted Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Short-Term Debt, Weighted Average Interest Rate, at Point in Time Short-Term Debt, Weighted Average Interest Rate, at Point in Time Derivative Contract [Domain] Derivative Contract [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Loan Production Offices Loan Production Offices Loan Production Offices Total Past Due Financial Asset, Past Due [Member] Net capital expenditures Segment, Net Capital Expenditures Segment, Net Capital Expenditures Net gains on sales or calls of investment securities Net gains on sales or calls of investment securities Debt Securities, Available-for-Sale, Realized Gain (Loss) Gain on life insurance proceeds Gain on life insurance proceeds Gain (Loss) on Life Insurance Proceeds Gain (Loss) on Life Insurance Proceeds Total Liabilities and Stockholders’ Equity Liabilities and Equity Employee Stock Option Share-Based Payment Arrangement, Option [Member] 4 - 5 years Time Deposit Maturities, Year Five Business Segments [Axis] Segments [Axis] (Decrease) increase in other liabilities Increase (Decrease) in Other Operating Liabilities Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Asset Class [Axis] Asset Class [Axis] Pass Pass [Member] Federal Home Loan Bank, Advance, Maturity, Average Interest Rate, Year Four Federal Home Loan Bank, Advance, Maturity, Average Interest Rate, Year Four Tabular List, Table Tabular List [Table Text Block] Thereafter Time Deposit Maturities, after Year Five Schedule of amortized cost and fair value of securities Unrealized Gain (Loss) on Investments [Table Text Block] Name Awards Close in Time to MNPI Disclosures, Individual Name Over 5 years through 10 years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 5 through 10 Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Customers Customers [Member] Customers FHLB advances FHLB Advances1 [Member] FHLB Advances1 Preferred stock, $2.50 par value, 20,000,000 shares authorized; no shares outstanding at June 30, 2026 and December 31, 2025 Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Commercial mortgage-backed securities Commercial Mortgage-Backed Securities [Member] Hedging Designation [Domain] Hedging Designation [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] 60–89 Days Past Due Financial Asset, 60 to 89 Days Past Due [Member] Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Individually evaluated loans Fair Value Estimate Assets, Fair Value Disclosure Time Deposit [Domain] Time Deposit [Domain] Time Deposit [Domain] Business Assets Business Assets [Member] Business Assets Name Measure Name Pay vs Performance Disclosure [Line Items] Foreclosed assets held for resale Real Estate Acquired Through Foreclosure Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Reversal of provision for unfunded commitments (Reversal Of) Provision For Unfunded Commitments (Reversal Of) Provision For Unfunded Commitments Debt Instrument [Line Items] Debt Instrument [Line Items] Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward] Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward] Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Total Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position Schedule of Fair Value, off-Balance-Sheet Risks Schedule of Fair Value, off-Balance-Sheet Risks [Table Text Block] Federal Funds Purchased Federal Funds Purchased [Member] Accrued interest receivable Interest Receivable Name Trading Arrangement, Individual Name Internally Risk Rated Internally Risk Rated [Member] Internally Risk Rated Financing Receivable, Nonaccrual [Line Items] Financing Receivable [Line Items] Financing Receivable, Nonaccrual [Line Items] Total Cash and Cash Equivalents Cash and Cash Equivalent Time deposits Time Deposits, Fair Value Disclosure Time Deposits, Fair Value Disclosure Federal Home Loan Bank, Advance, Maturity, Year One Federal Home Loan Bank, Advance, Maturity, Year One Company Selected Measure Amount Company Selected Measure Amount Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Net (losses) gains on equity securities Net losses (gains) on equity securities (Losses) Gains Equity Securities, FV-NI, Unrealized Gain (Loss) Depreciation and amortization expense Depreciation, Depletion and Amortization Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Deposits: Deposits [Abstract] Gain (Loss) on Securities Gain (Loss) on Securities [Table Text Block] Off-balance sheet financial instruments Fair Value Disclosure, off-Balance-Sheet Risks, Face Amount, Liability Derivative Liability Derivative Liability Derivative Liability Non-PEO NEO Non-PEO NEO [Member] Noninterest-bearing Noninterest-Bearing Deposit Liabilities, Domestic Entity Address, Address Line One Entity Address, Address Line One Total Noninterest Expenses Noninterest Expense Amount of Gain Reclassified from AOCI into Income Included Component Gain (Loss) on Fair Value Hedges Recognized in Earnings Amount of Gain Recognized in OCI Included Component Other Comprehensive Income (Loss), Derivative, Included Component, Increase (Decrease), before Adjustments and Tax Other Comprehensive Income (Loss), Derivative, Included Component, Increase (Decrease), before Adjustments and Tax Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] FHLB Advances Short and Long-Term Debt, Fair Value Short and Long-Term Debt, Fair Value $250,000 or more More Than $250,000 [Member] More Than $250,000 Proceeds from sales Proceeds From Sale of Debt Securities And Sale Of Equity Securities Proceeds From Sale of Debt Securities And Sale Of Equity Securities Award Timing Method Award Timing Method [Text Block] Net Increase in Cash and Cash Equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Derivative Liability, Notional Amount Derivative Liability, Notional Amount Mortgage-backed securities Debt Securities, Held-to-Maturity, Maturity, without Single Maturity Date, Fair Value Net Income NET INCOME Net (loss) income Net income Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Statement [Table] Statement [Table] Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Table] Restatement Determination Date: Restatement Determination Date [Axis] Schedule of accumulated other comprehensive loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of nonaccrual loans with and without loan reserves Financing Receivable, Nonaccrual [Table Text Block] Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Schedule of the composition of the loan portfolio Financing Receivable, before Allowance for Credit Loss, Maturity [Table Text Block] FDIC and regulatory FDIC and regulatory The premium paid to the Federal Deposit Insurance Corporation for deposit insurance which is included in noninterest expense as well as other regulatory expenses Adams, Cumberland, Franklin, Lancaster and York Counties, Pennsylvania Adams, Cumberland, Franklin, Lancaster and York Counties, Pennsylvania [Member] Adams, Cumberland, Franklin, Lancaster and York Counties, Pennsylvania Recoveries Financing Receivable, Allowance for Credit Loss, Recovery Loans held for sale Loan, Held-for-Sale, Fair Value Disclosure Brokered time deposits Interest-Bearing Domestic Deposit, Brokered Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Over 10 years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year 10 Derivative Instruments and Hedging Activities Disclosure [Abstract]