Amendment Flag Current Fiscal Year End Date Document Period End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Registrant Name Entity Central Index Key Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Document Type Entity Shell Company Entity Emerging Growth Company Entity Ex Transition Period Entity Small Business Notional amount of agreement Notional amount of agreements Award Type [Axis] Accounting Standards Update 2016-01 [Member] Accounting Standards Update 2016-02 [Member] Accrued interest receivable Accounts Receivable, Fair Value Disclosure Accounts, Notes, Loans and Financing Receivable [Line Items] Accrued expenses and other liabilities Accrued interest payable Accrued Liabilities, Fair Value Disclosure Less accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated Other Comprehensive Income (Loss) [Member] Accumulated Other Comprehensive Income [Member] Accumulated other comprehensive income (loss) Adjustments to reconcile net income to net cash from operating activities: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash from operating activities: Adjustments for New Accounting Pronouncements [Axis] Other borrowed funds Total Advance amount Advances from Federal Home Loan Bank [Abstract] Advances from Federal Home Loan Banks [Abstract] Share-based compensation cost Recoveries Allowance for loan losses by portfolio [Roll Forward] Allowance for Loan and Lease Losses [Roll Forward] Charge-offs Allowance for Loan and Lease Losses, Write-offs Antidilutive Securities [Axis] Antidilutive securities excluded from computation of earnings per share amount (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share [Line 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Available-for-sale Securities, Amortized Cost Basis Gross unrealized gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Available for Sale, Debt Securities [Abstract] Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract] Gross unrealized losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Gross unrealized gains Total Debt Securities, Available-for-sale, Amortized Cost Securities in continuous unrealized losses position, fair value [Abstract] Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] Due from five to ten years Due in one year or less Contractual maturities of debt securities [Abstract] Available-for-sale Securities, Debt Maturities [Abstract] Available-for-Sale Securities, Amortized Cost [Abstract] Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract] Available-for-Sale Securities, Fair Value [Abstract] Due after ten years Due after ten years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Due from five to ten years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value Due from one to five years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value Available-for-sale securities Fair value Fair value Debt Securities, Available-for-sale Due from one to five years Fair value Available-for-sale Securities, Equity Securities Due in one year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Gain on sales of securities Gain on sales of securities Gain on sales of securities Available-for-sale Securities, Gross Realized Gain (Loss) Earnings in bank-owned life insurance BOLI income Bank-owned life insurance (BOLI) Building and Related Components [Member] Building [Member] Total capital (to risk weighted assets), actual amount Total capital (to risk weighted assets), actual ratio Total capital (to risk weighted assets) to be well capitalized under prompt corrective action regulations, ratio Total capital (to risk weighted assets), minimum capital adequacy, amount Preferred Securities issued qualified as Tier 1 capital for regulatory capital purposes Total capital (to risk weighted assets) to be well capitalized under prompt corrective action regulations, amount Total capital (to risk weighted assets), minimum capital adequacy, ratio Carrying Amount [Member] Cash and Cash Equivalents Net change in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Restrictions on Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Cash and due from banks Cash and due from banks Cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash and cash equivalents Cash, Cash Equivalents, and Federal Funds Sold Commercial and Industrial [Member] Commercial [Member] Commercial Real Estate [Member] Commercial Real Estate [Member] COMMITMENTS AND OFF BALANCE-SHEET RISK Commitments and Contingencies Disclosure [Text Block] Commitments to Extend Credit [Member] Loan Commitments [Member] COMMITMENTS AND OFF BALANCE-SHEET RISK [Abstract] Loss Contingencies Commitments and Contingencies Common Stock [Member] Common Securities [Member] Common stock, shares authorized (in shares) Common stock, par value (in dollars per share) CET1 capital (to risk weighted assets), actual amount Common Equity Tier One Capital Cash dividends per common share (in dollars per share) Cash dividend (in dollars per share) CET1 capital (to risk weighted assets) to be well capitalized under prompt corrective action regulations, amount Common Equity Tier One Capital Required to be Well-Capitalized CET1 capital (to risk weighted assets), actual ratio Common Equity Tier One Capital Ratio CET1 capital (to risk weighted assets), minimum capital adequacy, amount Common Equity Tier One Capital Required for Capital Adequacy Common stock, shares issued (in shares) Common stock, shares outstanding (in shares) Common stock, no par value, 200,000,000 shares authorized; 34,045,411 and 33,972,977 shares issued and outstanding at December 31, 2018 and December 31, 2017 EMPLOYEE BENEFITS [Abstract] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Deferred tax assets [Abstract] Deferred tax liabilities [Abstract] Deferred tax assets and liabilities [Abstract] Comprehensive income Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Income Concentration Risk Type [Domain] Contractual amounts of financial instruments with off-balance-sheet risk Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure Concentration of Credit Risk Concentration Risk Benchmark [Axis] Concentration Risk Type [Axis] Concentration Risk Benchmark [Domain] Concentration of credit risk Concentration Risk, Percentage Concentration Risk [Line Items] Concentration Risk [Table] CONDENSED FINANCIAL STATEMENTS (PARENT COMPANY ONLY) Condensed Financial Information of Parent Company Only Disclosure [Text Block] Nature of Operations and Principles of Consolidation Construction in Progress [Member] Consumer Loan [Member] Consumer [Member] Core Deposits [Member] Federal Home Loan Bank (FHLB) Stock Cost Method Investments, Policy [Policy Text Block] Credit Concentration Risk [Member] Reclassification for equity securities upon adoption of ASU 2016-01 Cumulative Effect of New Accounting Principle in Period of Adoption Current Customer Relationships [Member] Doubtful [Member] Doubtful [Member] 12 months or more Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Less than 12 months Debt Securities, Available-for-sale [Table] 12 months or more Less than 12 months Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Number of securities available for sale with unrealized losses Total Debt Securities, Available-for-sale, Unrealized Loss Position Total Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Description of variable rate basis Basis spread on three-month LIBOR Debt Instrument, Basis Spread on Variable Rate Schedule of Long-term Debt Instruments [Table] Debt Instrument [Axis] OTHER BORROWED FUNDS Debt Disclosure [Text Block] Debt Instrument [Line Items] Debt Instruments [Abstract] Debt instruments [Abstract] Maturity date Unused borrowing capacity Debt Instrument, Name [Domain] Prepaid expenses Deferred Tax Liabilities, Prepaid Expenses Contractual term Unrealized loss on securities available for sale Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross Deferred income tax expense Net deferred tax asset Net deferred tax asset Gross deferred tax assets Deferred Tax Assets, Gross Total net deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Other Deferred Tax Assets, Other Allowance for loan losses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses Nonaccrual loan interest Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Loss Reserves Gross deferred tax liabilities Deferred Tax Liabilities, Net Other Deferred Tax Liabilities, Other Valuation allowance Valuation allowance on deferred tax assets Depreciation Deferred Tax Liabilities, Property, Plant and Equipment Maximum employer matching contribution Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Employer contributions Interest bearing demand DEPOSITS Deposit Liabilities Disclosures [Text Block] Deposits at Period-End Deposit Liabilities, Type [Table Text Block] Deposits 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Off-balance sheet credit-related items Fair Value Measurement Inputs and Valuation Techniques [Line Items] Measurement Frequency [Axis] Quantitative Information about Level 3 Fair Value Measurements Measured on a Non-Recurring Basis Fair Value Hierarchy and NAV [Axis] Fair Value Measurement Inputs and Valuation Techniques [Table] Notional amount of commitments to fund mortgage loans to be sold into the secondary market Quantitative information about Level 3 fair value measurements measured on non-recurring basis [Abstract] Fair Value Measurement Inputs and Valuation Techniques [Abstract] Recurring Basis [Member] Fair Value, Measurement Frequency [Domain] Nonrecurring Basis [Member] Fair Value Hierarchy and NAV [Domain] FAIR VALUE Fair Value Disclosures [Text Block] Assets Measured at Fair Value on a Non-Recurring Basis Fair Values of Financial Instruments Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Carrying Amounts and Estimated Fair Values of Financial Instruments, Not Previously Presented Fair Value, by Balance Sheet Grouping [Table] Fair Value Measurement [Domain] Significant Unobservable Inputs (Level 3) [Member] Level 3 [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] Significant Other Observable Inputs (Level 2) [Member] Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Federal Home Loan Bank (FHLB) Stock [Abstract] Federal Home Loan Bank Stock and Federal Reserve Bank Stock [Abstract] OTHER BORROWED FUNDS [Abstract] Residential and commercial real estate loans pledged as collateral for Federal Home Loan Bank advances FDIC assessment FDIC assessment expense Federal Home Loan Bank (FHLB) stock Federal Home Loan Bank Advances [Member] Federal funds sold and other short-term investments Federal Funds Sold and Securities Purchased under Agreements to Resell Federal funds sold and other short-term 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Receivable, Collectively Evaluated for Impairment Financing Receivable Portfolio Segment [Axis] Individually reviewed for impairment Loans not past due Financing Receivables, Period Past Due [Domain] Financing Receivable, Recorded Investment [Line Items] Class of Financing Receivable, Type [Axis] Aging of recorded investment in past due loans by class of loans [Abstract] Financing Receivable, Recorded Investment, Aging [Abstract] Financing Receivable, Recorded Investment, Past Due [Line Items] Financing Receivable, Impaired [Line Items] Loans [Abstract] Financing Receivable, Additional Disclosures [Abstract] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Outstanding recorded balance Financing Receivable, Modifications, Recorded Investment Writedown upon TDR Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down Over 90 days accruing Collectively evaluated for impairment Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets by Major Class [Axis] Estimated useful life of intangible assets Finite-Lived Intangible Asset, Useful Life Intangible Assets [Abstract] Finite-Lived Intangible Assets [Line Items] Administration and disposition of problem assets Net loss on sales of premises and equipment Gain (Loss) on Disposition of Property Plant Equipment Net gains on mortgage loans Net gains on mortgage loans Gain (loss) on sales of other real estate owned Gains (Losses) on Sales of Other Real Estate Derivatives [Abstract] Bond and D&O Insurance Goodwill Goodwill and Acquired Intangible Assets Goodwill and Acquired Intangible Assets [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] 12 months or more Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value 12 months or more Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Gross unrealized gains Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain Total Debt Securities, Held-to-maturity, Unrealized Loss Position, Fair Value Less than 12 months Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value Securities in continuous unrealized loss position, unrealized loss [Abstract] Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss [Abstract] Less than 12 months Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Held to Maturity [Abstract] Debt Securities, Held-to-maturity, Fair Value to Amortized Cost [Abstract] Total Debt Securities, Held-to-maturity, Unrealized Loss Position, Accumulated Loss Securities held to maturity (fair value 2018 - $71,505 and 2017 - $86,452) Amortized cost Due from five to ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value Gross unrealized losses Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss Contractual maturities of debt securities [Abstract] Debt Securities, Held-to-maturity, Maturity [Abstract] Securities in continuous unrealized losses position, fair value [Abstract] Due from one to five years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost Due after ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Held-to-Maturity Securities, Amortized Cost [Abstract] Due in one year or less Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Held-to-Maturity Securities, Fair Value [Abstract] Due from five to ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost Due after ten years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after 10 Years, Amortized Cost Due from one to five years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value Securities held to maturity fair value Fair value Fair value Debt Securities, Held-to-maturity, Fair Value Due in one year or less Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost Number of securities held to maturity with unrealized losses Home Equity [Member] Home Equity Line of Credit [Member] Average of impaired loans Unpaid principal balance Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance Commercial loans classified as substandard or worse [Abstract] Impaired Financing Receivable, Recorded Investment [Abstract] Classified as impaired Recorded investment Impaired Financing Receivable, Recorded Investment Interest income recognized during impairment Unpaid principal balance Impaired Financing Receivable, Unpaid Principal Balance Allowance allocated Impaired Financing Receivable, Related Allowance Average Balances of Impaired Loans and Interest Recognized on Impaired Loans Impaired Financing Receivables [Table Text Block] Recorded investment Impaired Financing Receivable, with No Related Allowance, Recorded Investment Cash-basis interest income recognized Unpaid principal balance Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance Recorded investment Impaired Financing Receivable, with Related Allowance, Recorded Investment Long-term Assets Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] Write-down of other assets held for sale Impairment charge applied on other assets held for sale Write-down of other real estate OTTI charges Income Approach [Member] FEDERAL INCOME TAXES [Abstract] Income before income tax Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income before income tax and equity in undistributed earnings of subsidiaries Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest CONSOLIDATED STATEMENTS OF INCOME [Abstract] CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME [Abstract] Equity in undistributed earnings of subsidiaries Income (Loss) from Equity Method Investments, Net of Dividends or Distributions Income tax expense Income tax benefit Income tax expense Income Tax Expense (Benefit) Difference between financial statement tax expense (benefit) and amount computed by applying statutory federal tax rate to pretax income [Abstract] Income tax expense [Abstract] FEDERAL INCOME TAXES Income Tax Disclosure [Text Block] Other, net Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Statutory rate applied to income before taxes Effect of change in enacted federal income tax rate on deferred items Effective Income 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Assessment [Domain] FHLB stock Investment in Federal Home Loan Bank Stock, Fair Value Disclosure Contractual Maturities of Debt Securities Investments Classified by Contractual Maturity Date [Table Text Block] SECURITIES [Abstract] SECURITIES Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] LIBOR [Member] Long-term Debt, Type [Domain] Long-term Debt, Type [Axis] Salaries and benefits Land [Member] Total rental expense for all operating leases Leasehold Improvements [Member] Letters of Credit [Member] LIABILITIES AND SHAREHOLDERS' EQUITY Total liabilities Liabilities Total liabilities and shareholders' equity Liabilities and Equity Mortgage Banking Derivatives Loan Restructuring Modification [Axis] Loan Restructuring Modification [Domain] Impaired loans [Abstract] Allowance for Loan Losses Loans held for sale, at fair value LOANS [Abstract] Allowance for loan losses Beginning balance Ending balance Total ending allowance balance 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balance Less: valuation allowance Real Estate Owned, Valuation Allowance SHAREHOLDERS' EQUITY Regulatory Capital Requirements under Banking Regulations [Text Block] Actual capital levels and minimum required levels [Abstract] Regulatory Capital Requirements [Abstract] RELATED PARTY TRANSACTIONS [Abstract] Related Party Transaction [Line Items] Deposits from principal officers, directors, and their affiliates Related Party [Domain] Related Party [Axis] RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Repayments and maturities of other borrowed funds Payments of FHLBank Borrowings, Financing Activities Residential Mortgage [Member] Residential Mortgage [Member] Restricted Stock [Member] Restrictions on Cash [Abstract] Restricted Cash and Investments [Abstract] Cash on hand or on deposit with the Federal Reserve Bank required to meet regulatory reserve and clearing requirements Retained deficit Retained Deficit [Member] Retained Earnings [Member] Revenue Recognition INCOME Revenues [Abstract] Total income Revenues Concentration of Credit Risk [Abstract] Risks and Uncertainties [Abstract] Substandard [Member] Substandard [Member] Outstanding, weighted average remaining contractual term Exercisable, weighted average remaining contractual term Exercisable, aggregate intrinsic value Outstanding, beginning of period Outstanding, end of period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested Adjusted [Member] Scenario, Adjustment [Member] Scenario, Unspecified [Domain] Schedule of Financing Receivables Past Due [Table] Scheduled Repayments of FHLB Advances Loans to Principal Officers, Directors, and Their Affiliates Schedule of Related Party Transactions [Table Text Block] Quarterly Financial Data Difference between Financial Statement Tax Expense (Benefit) and Amount Computed by Applying Statutory Federal Tax Rate to Pretax Income Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Securities in Continuous Unrealized Loss Position Schedule of Unrealized Loss on Investments [Table Text Block] Reconciliation of Numerators and Denominators of Basic and Diluted Earnings per Common Share Changes in Nonvested Stock Awards Summary of Option Activity in the Plans Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Schedule of Impaired Financing Receivable [Table] Future Minimum Rental Expense under Noncancelable Operating Leases Schedule of Finite-Lived Intangible Assets [Table] Assets Measured at Fair Value on a Recurring Basis Schedule of Financing Receivable, Allowance for Credit Losses [Table] Debt Securities, Available-for-sale [Line Items] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Income Tax Expense Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Deferred Tax Assets and Liabilities Actual Capital Levels and Minimum Required Levels Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Advances from Federal Home Loan Bank Schedule of Fair Value, Off-balance Sheet Risks [Table] Summary of Contractual Amounts of Financial Instruments with Off-Balance-Sheet Risk Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block] Schedule of Federal Home Loan Bank Advances, by Branch of FHLB Bank [Table] Debt Securities, Held-to-maturity [Table] Schedule of Held-to-maturity Securities [Line Items] Schedule of Related Party Transactions, by Related Party [Table] Property, Plant and Equipment [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Portfolio Loans Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Borrowings outstanding Secured Debt Segment Reporting Segment Reporting [Abstract] Weighted average exercise price [Roll Forward] Weighted-average grant-date fair value [Roll Forward] Forfeited (in dollars per share) Award vesting period Stock-based compensation [Abstract] Share-based Arrangements with Employees and Nonemployees [Abstract] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Option granted (in shares) STOCK-BASED COMPENSATION [Abstract] Expired (in dollars per share) Stock compensation expense Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Aggregate intrinsic value [Roll Forward] Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Vested (in dollars per share) Changes in nonvested restricted stock awards, shares [Roll Forward] Granted (in shares) Outstanding, beginning of period (in shares) Outstanding, end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Total grant date fair value of shares vested Granted (in dollars per share) Outstanding, end of period (in dollars per share) Outstanding, beginning of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Intrinsic value of options exercised Shares available for issuance (in shares) Exercisable, end of period (in dollars per share) Expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Exercisable, end of period (in shares) Outstanding end of period (in dollars per share) Outstanding beginning of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Summary of option activity, number outstanding [Roll Forward] Outstanding, end of period (in shares) Outstanding, beginning of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Outstanding, aggregate intrinsic value Options, additional disclosures [Abstract] Number of shares permitted under the plan (in shares) Equity Award [Domain] Short-term Debt, Type [Axis] Short-term Debt, Type [Domain] Scenario [Axis] CONSOLIDATED BALANCE SHEETS [Abstract] CONDENSED BALANCE SHEETS [Abstract] CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract] Statement [Line Items] Statement [Table] CONSOLIDATED STATEMENTS OF CASH FLOWS [Abstract] CONDENSED STATEMENTS OF CASH FLOWS [Abstract] Equity Components [Axis] Equity Components [Axis] Equity Components [Axis] CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY [Abstract] Number of shares issued for stock option exercise (in shares) Exercised (in shares) Issuance of shares for stock option exercise Stock compensation expense Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Repurchase of shares for taxes withheld on vested restricted stock Stock Repurchased and Retired During Period, Value Balance Balance Total shareholders' equity Total shareholders' equity Shareholders' equity SHAREHOLDERS' EQUITY [Abstract] Subsequent Event Subsequent Event [Table] Subsequent Event Type [Domain] Subsequent Event [Line Items] Subsequent Event [Abstract] Subsequent Events [Abstract] Subsequent Event Type [Axis] Subsequent Event [Member] Supplemental cash flow information Back-to-Back Swap Agreement [Member] Swap [Member] Past due period after which loans are charged off Threshold Period Past Due for Write-off of Financing Receivable Impairment of long term assets Long-term Assets [Abstract] Tangible Asset Impairment Charges [Abstract] Tier 1 capital (to average assets), actual ratio Tier 1 capital (to risk weighted assets) to be well capitalized under prompt corrective action regulations, amount Tier 1 capital (to average assets), minimum capital adequacy, amount Tier 1 capital (to average assets) to be well capitalized under prompt corrective action regulations, amount Tier 1 capital (to average assets), minimum capital adequacy, ratio Tier 1 capital (to risk weighted assets) to be well capitalized under prompt corrective action regulations, ratio Tier 1 capital (to risk weighted assets), actual amount Tier 1 capital (to average assets), actual amount Tier 1 capital (to risk weighted assets), minimum capital adequacy, amount Tier 1 capital (to risk weighted assets), actual ratio Tier 1 capital (to risk weighted assets), minimum capital adequacy, ratio Tier 1 capital (to average assets) to be well capitalized under prompt corrective action regulations, ratio Maturity Distribution of Certificates of Deposit Time Deposit Maturities [Table Text Block] 2020 2022 2021 Total certificate of deposit Time Deposits Thereafter 2019 2023 Additions, transfers from loans Transfers from loans to other real estate Financial Instruments [Domain] Transfers of Financial Assets Transfers and Servicing of Financial Assets, Transfers of Financial Assets, Policy [Policy Text Block] Troubled Debt Restructurings Preferred Securities [Member] Type of Adoption [Domain] Taxable State and Municipal Bonds [Member] Taxable Municipal Bonds [Member] Loss [Member] Unlikely to be Collected Financing Receivable [Member] Unallocated [Member] Unrecognized tax benefits Unused Lines of Credit [Member] Use of Estimates U.S. Agency MBS and CMOs [Member] US Government Agencies Debt Securities [Member] U.S. Treasury and Federal Agency Securities [Member] US Treasury and Government [Member] Deferred tax asset valuation allowance change Change in valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Valuation Approach and Technique [Axis] Valuation Approach and Technique [Domain] Variable Rate [Axis] Variable Rate [Domain] Weighted average shares outstanding, including participating stock awards - Basic (in shares) Weighted average shares outstanding - Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Dilutive potential common shares [Abstract] CONDENSED FINANCIAL STATEMENTS (PARENT COMPANY ONLY) [Abstract] Condensed Financial Statements, Captions [Line Items] Consolidated Entities [Axis] Consolidated Entities [Domain] Maximum [Member] Minimum [Member] Parent Company [Member] Parent Company [Member] Range [Domain] Range [Axis] Restatement [Domain] Restatement [Axis] Previously Reported [Member] Previously Reported [Member] Condensed Statements of Income and Comprehensive Income Condensed Statements of Cash Flows Condensed Balance Sheets Condensed Financial Statements [Table] Bank [Member] Subsidiaries [Member] Weighted Average [Member] Asset measured at fair value on nonrecurring basis [Abstract] Asset measured at fair value on non-recurring basis [Abstract] This element represents the fair value disclosure of impaired loan receivable as presented on the statement of financial position which may include mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts, or any other loans which are due the Company as of the balance sheet date. Impaired Loans, Fair Value Disclosure Impaired loans Fair value amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure. Other Real Estate, Fair Value Disclosure Other real estate owned Asset and liabilities measured at fair value on recurring basis [Abstract] Asset measured at fair value on recurring basis [Abstract] This category includes information about investments in equity securities which are not otherwise provided for in the existing taxonomy in the form of Domain Members or individual elements. Other equity securities [Member] Other Equity Securities [Member] Debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment and also other debt securities. Corporate bonds and other debt securities [Member] Corporate Bonds and Other Debt Securities [Member] Value of input used to measure impaired loans. Impaired Loans, Measurement Input Impaired loans, unobservable input(s) The gross carrying amount as of the balance sheet date of other real estate and foreclosed assets. Other real estate may include real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings. Other Real Estate and Foreclosed Assets Gross Beginning balance Ending balance, gross Valuation reversal upon sale of other real estate and foreclosed assets. Other Real Estate and Foreclosed Assets Valuation Reversal upon Sale Valuation allowance reversal upon sale Amount of fees earned on ATM and Bank-issued debit card transactions. ATM and Debit Card Fees ATM and debit card fees The non-interest income earned through service charges and fees for deposit related services. Service Charges And Fees Service charges and fees The net gain (loss) resulting from repossessed and foreclosed properties. Gains (Losses) on Repossessed and Foreclosed Properties Net (gains) losses on repossessed and foreclosed properties