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Operation [Abstract] Financing Receivable, Nonaccrual Financing Receivable, Nonaccrual Weighted-average common shares outstanding assuming dilution (in shares) Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Cash dividends (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Entity Emerging Growth Company Entity Emerging Growth Company Other Fees, discontinued operations Other Fees, discontinued operations Other Fees, discontinued operations Loans Total Loans Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Bank service fees Bank Service Fees [Member] Bank Service Fees Treasury securities US Treasury Securities [Member] Discount on cash flows Lessee, Operating Lease, Liability, Undiscounted Excess Amount Credit Exposure Of Loan Portfolio [Domain] CreditExposureOfLoanPortfolio [Domain] CreditExposureOfLoanPortfolio Schedule of Share-based Compensation 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Including Discontinued Operation, Operating Expense Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Interest-bearing Interest-Bearing Deposit Liabilities Finite-lived intangible asset, useful life Intangible Asset, Finite-Lived, Useful Life Available-for-sale securities, gross realized gains Debt Securities, Available-for-Sale, Realized Gain Deposits Deposits, Fair Value Disclosure Due after 10 years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Commercial: Commercial Real Estate [Member] Cash Flows From Investing Activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Segment Reporting [Line Items] Segment Reporting [Line Items] Unrecognized compensation expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, 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Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] AFS, Less than 12 months, Estimated Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Current Fiscal Year End Date Current Fiscal Year End Date Corporate, Eliminations and Other Corporate, Reconciling Items, And Eliminations [Member] Corporate, Reconciling Items, And Eliminations Proceeds from Issuance of Debt Proceeds from Issuance of Debt Gain (Loss) on Disposition of Business Gain (Loss) on Disposition of Business Accounts and drafts payable, discontinued operations Accounts and drafts payable, discontinued operations Accounts and drafts payable, discontinued operations Provision for credit losses Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Accounts and drafts payable Accounts and drafts payable Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business and includes carrying value of amounts due on drafts payable on the balance sheet date. Issuance of common shares pursuant to stock-based compensation plan, net (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture Purchase of common shares (in shares) Stock Repurchased During Period, Shares Entity File Number Entity File Number Issuance of common shares pursuant to stock-based compensation plan, net Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Common stock, shares, issued (in shares) Common Stock, Shares, Issued Stand by Letters Of Credit Member Stand by Letters Of Credit Member [Member] Stand by Letters Of Credit Member Treasury stock shares (in shares) Treasury Stock, Common, Shares Exempt from federal income taxes Interest Income, Securities, Operating, Tax Exempt AFS, 12 months or more, Unrealized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Other Cost and Expense, Operating Other Cost and Expense, Operating Equity Components [Axis] Equity Components [Axis] Increase in accounts receivable Increase (Decrease) in Accounts Receivable Product and Service [Domain] Product and Service [Domain] Cash paid for income taxes Income Tax Paid, after Refund Received Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Entity Interactive Data Current Entity Interactive Data Current Operating Expense: Noninterest Expense [Abstract] Due after 1 year through 5 years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Entity Small Business Entity Small Business Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent 3-4 years Lessee, Operating Lease, Liability, to be Paid, Year Three Omnibus Plan Omnibus Plan [Member] Omnibus Plan Remaining number of shares authorized to be repurchased (in shares) Share Repurchase Program, Remaining Authorized, Number of Shares Subsequent Events [Abstract] Subsequent Events [Abstract] Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Net interest income Intersegment expense (income) Interest Income (Expense), Operating Mortgage-backed securities issued or guaranteed by U.S. government agencies or sponsored enterprises US Government-sponsored Enterprises Debt Securities [Member] Document Type Document Type Interest income Interest and Dividend Income, Including Tax Equivalent Adjustment, Operating Interest and Dividend Income, Including Tax Equivalent Adjustment, Operating Credit Exposure Of Loan Portfolio [Axis] Credit Exposure Of Loan Portfolio [Axis] Credit exposure Of Loan Portfolio [Domain] Basis of Presentation Significant Accounting Policies [Text Block] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Restricted Stock Award, Forfeitures Restricted Stock Award, Forfeitures Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name AFS, Less than 12 months, Unrealized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Loans Subject To Normal Monitoring Loans Subject To Normal Monitoring [Member] Loans Subject To Normal Monitoring [Member] Income from continuing operations, before income tax expense Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Financial Standby Letter of Credit Financial Standby Letter of Credit [Member] Gross Carrying Amount Intangible Asset, Finite-Lived, before Accumulated Amortization Total net revenue Total net revenue Revenues Cash Provided by (Used in) Investing Activity, Discontinued Operation Cash Provided by (Used in) Investing Activity, Discontinued Operation Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Liabilities and Shareholders’ Equity Liabilities and Equity [Abstract] Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Net (decrease) increase in noninterest-bearing demand deposits Net decrease in noninterest-bearing demand deposits Net change during the reporting period in noninterest-bearing demand deposits. Trade name Trade Names [Member] Award Type [Domain] Award Type [Domain] Less than 1 year Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Supplemental information: Supplemental Cash Flow Information [Abstract] Treasury stock, shares repurchased (in shares) Treasury Stock, Shares, Acquired Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Other Short-Term Borrowings Other Short-Term Borrowings Balance sheet liabilities: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Modified loans Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months Cash and cash equivalents Cash, Cash Equivalents, and Short-Term Investments Other assets Other Assets Shared-Based Payment Arrangement, Noncash Expense, Discontinued Operations Shared-Based Payment Arrangement, Noncash Expense, Discontinued Operations Shared-Based Payment Arrangement, Noncash Expense, Discontinued Operations 30-59 Days Financial Asset, 30 to 59 Days Past Due [Member] Entity Tax Identification Number Entity Tax Identification Number Cash and due from banks Cash and Due from Banks Current Financial Asset, Not Past Due [Member] Purchase of common shares Treasury Stock, Value, Acquired, Cost Method Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Customer lists Customer Lists [Member] Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Processing fees, discontinued operations Processing fees, discontinued operations Processing fees, discontinued operations Financing Receivable, Allowance for Credit Loss [Roll Forward] Financing Receivable, Allowance for Credit Loss [Roll Forward] Commercial and industrial Commercial and Industrial [Member] Commercial And Industrial Loan Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Employee Share-Based Payment Arrangement, Employee [Member] Net increase in time deposits Increase (Decrease) in Time Deposits Share-based compensation expense Share-Based Payment Arrangement, Noncash Expense Interest Expense: Interest Expense, Operating and Nonoperating [Abstract] Total personnel expenses Total personnel expenses Labor and Related Expense Net increase in loans Payments for (Proceeds from) Loans and Leases Schedule of Debt Schedule of Debt [Table Text Block] Leases Lessee, Operating Leases [Text Block] Due after 5 years through 10 years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Basic earnings per share (in dollars per share) Earnings Per Share, Basic Measurement Input Type [Axis] Measurement Input Type [Axis] Purchase of common shares for treasury Payments for Repurchase of Common Stock Statistical Measurement [Axis] Statistical Measurement [Axis] Net decrease in interest-bearing demand and savings deposits Net increase in interest-bearing demand and savings deposits Net change during the reporting period in interest-bearing demand and savings deposits. Short-term lease, cost Short-Term Lease, Cost Award Type [Axis] Award Type [Axis] Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Retained earnings Retained Earnings (Accumulated Deficit) Investment in bank-owned life insurance Bank Owned Life Insurance Product and Service [Axis] Product and Service [Axis] Pension Plan Pension Plan [Member] Common Stock Common Stock [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Operating lease, cost Operating Lease, Cost Average funding sources Average funding sources Funding sources. Shares issued in period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Deposits: Deposits, by Type [Abstract] Cover [Abstract] Receivable Receivable [Policy Text Block] Total liabilities and shareholders’ equity Liabilities and Equity Variable lease, cost Variable Lease, Cost Total intangible assets, net Intangible Asset, Including Goodwill, after Accumulated Amortization Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Supplemental Employee Retirement Plan Supplemental Employee Retirement Plan [Member] Segments [Axis] Segments [Axis] Schedule of Credit Exposure of the Loan Portfolio Schedule of Credit Exposure of the Loan Portfolio [Table Text Block] Tabular disclosure for credit exposure of loan portfolio by internally assigned credit grade. Plan Name [Axis] Plan Name [Axis] Schedule of Unrealized Loss on Investments Unrealized Gain (Loss) on Investments [Table Text Block] Expected amortization, remainder of fiscal year Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year Forfeitures (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, par value $.50 per share; 2,000,000 shares authorized and no shares issued Preferred Stock, Value, Issued Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] 60-89 Days Financial Asset, 60 to 89 Days Past Due [Member] Total Assets, Fair Value Disclosure Discontinued Operations and Disposal Groups [Abstract] Income Taxes Income Tax Disclosure [Text Block] Amortization expense, next rolling twelve months Finite-Lived Intangible Assets, Amortization Expense, Next Rolling 12 Months Interest Income (Expense), after Provision for Loan Loss [Abstract] Interest Income (Expense), after Provision for Loan Loss [Abstract] Net (Increase) Decrease In Accounts and Drafts Receivable From Customers Net (Increase) Decrease In Accounts and Drafts Receivable From Customers Net (Increase) Decrease In Accounts and Drafts Receivable From Customers Interest and fees on loans Interest and Fee Income, Financing Receivable Retirement Plan Type [Domain] Retirement Plan Type [Domain] Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Debt Securities, Available-for-sale, Unrealized Loss Position AFS, Total Estimated Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position Short-term investments Short-Term Investments Other income (out-of-scope of FASB ASC 606) Revenue Not from Contract with Customer Financial fees Financial Fees [Member] Financial Fees Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] (Gain) loss on sale of investment securities Debt and Equity Securities, Gain (Loss) Financial Asset, Aging [Axis] Financial Asset, Aging [Axis] Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Entity Address, Address Line Two Entity Address, Address Line Two Operating lease, weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Entity Address, Address Line One Entity Address, Address Line One Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Allowance specific to Non-accrual loans Allowance specific to Non-accrual loans Allowance specific to Non-accrual loans Income tax expense Income Tax Expense (Benefit) Total operating expense Noninterest Expense Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Forecast Forecast [Member] Other intangible assets, net Other Intangible Assets, Net Net decrease in accounts and drafts receivable from customers Increase In Accounts and Drafts Payable Net change during the reporting period in the carrying amount of accounts and drafts payable. Net income Net income Net Income Net Income (Loss) Attributable to Parent Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Disposal Group, Including Discontinued Operation, Goodwill Disposal Group, Including Discontinued Operation, Goodwill Statement [Table] Statement [Table] Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Table] Nonemployee Share-Based Payment Arrangement, Nonemployee [Member] Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Disposal Group, Including Discontinued Operation, Other Liabilities Disposal Group, Including Discontinued Operation, Other Liabilities Fee Revenue and Other Income: Revenues [Abstract]