Investments, Debt and Equity Securities [Abstract] Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-sale [Table] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] U.S. Government-sponsored enterprises (GSEs) [Member] US Government-sponsored Enterprises Debt Securities [Member] Municipal securities [Member] Municipal Securities [Member] Other debt securities [Member] Other Debt Obligations [Member] Mortgage-backed securities (GSEs) [Member] Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Gross Unrealized Gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Fair Value Debt Securities, Available-for-sale Receivables [Abstract] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Performing [Member] Performing Financial Instruments [Member] Impaired Loans [Member] Nonperforming Financial Instruments [Member] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Commercial Real Estate [Member] Commercial Real Estate Portfolio Segment [Member] Consumer Real Estate [Member] Residential Portfolio Segment [Member] Construction and Land Development [Member] Construction Portfolio Segment [Member] Construction Portfolio Segment [Member] Commercial and Industrial [Member] Commercial Portfolio Segment [Member] Consumer and Other [Member] Consumer Portfolio Segment [Member] Credit Loss Status [Axis] Credit Loss Status [Axis] Credit Loss Status [Domain] Credit Loss Status [Domain] All Other Loans [Member] Receivables Other than Receivables Acquired with Deteriorated Credit Quality [Member] Receivables Other than Receivables Acquired with Deteriorated Credit Quality [Member] Purchased Credit Impaired Loans [Member] Financial Asset Acquired with Credit Deterioration [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Total loans Loans and Leases Receivable, Net of Deferred Income Fair Value Disclosures [Abstract] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Fair Value, Assets and Liabilities Measured on Non-Recurring Basis Fair Value Measurements, Nonrecurring [Table Text Block] Fair Value, by Balance Sheet Grouping Fair Value, by Balance Sheet Grouping [Table Text Block] Statement of Comprehensive Income [Abstract] Unrealized holding gains arising during the period, tax expense (benefit) Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax Commitments and Contingencies Disclosure [Abstract] Other Commitments Other Commitments [Table Text Block] Statement of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Net income Net Income (Loss) Attributable to Parent Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation, amortization and accretion Depreciation, Depletion and Amortization, Nonproduction Provision for loan losses Provision for Loan and Lease Losses Stock compensation expense Share-based Compensation Deferred income tax expense Deferred Income Tax Expense (Benefit) Income on bank owned life insurance Bank Owned Life Insurance Income Loss on disposal of fixed assets Gain (Loss) on Disposition of Property Plant Equipment Net gains from sale of loans and other assets Other Gains And Losses Of Asset Net The net other (gain) losses resulting from a sale of other assets , loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes. Net losses from sale of foreclosed assets Gains (Losses) on Sales of Other Real Estate Loans originated for sale Payments for Origination and Purchases of Loans Held-for-sale Proceeds from sale of loans originated for sale Proceeds from Sale of Mortgage Loans Held-for-sale Changes in other assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accrued interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Accrued interest payable Increase (Decrease) in Interest Payable, Net Other assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities CASH FLOWS FROM INVESTING ACTIVITIES Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Proceeds from sales, maturities, and paydowns of securities available-for-sale Proceeds from Sale and Maturity of Debt Securities, Available-for-sale Purchase of securities available-for-sale Payments to Acquire Debt Securities, Available-for-sale Purchase of restricted investments Payments to Acquire Restricted Investments Loan originations and principal collections, net Payments for (Proceeds from) Loans Receivable Purchase of bank premises and equipment Payments to Acquire Property, Plant, and Equipment Proceeds from sale of foreclosed assets Proceeds from Sale of Foreclosed Assets Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities CASH FLOWS FROM FINANCING ACTIVITIES Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Net increase in deposits Increase (Decrease) in Deposits Net decrease in securities sold under agreements to repurchase Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net Issuance of common stock Proceeds from Issuance of Common Stock Proceeds from Federal Home Loan Bank advances and other borrowings Proceeds from (Payments for) Other Financing Activities Repayment of Federal Home Loan Bank advances and other borrowings Net Payments On Federal Home Loan Bank Advances The net cash outflow associated with Federal Home Loan Bank Advances made during the period. Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect CASH AND CASH EQUIVALENTS, beginning of year Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents CASH AND CASH EQUIVALENTS, end of period SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION Supplemental Cash Flow Information [Abstract] Cash paid during the period for interest Interest Paid, Excluding Capitalized Interest, Operating Activities NONCASH INVESTING AND FINANCING ACTIVITIES Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Change in unrealized losses on securities available for sale Noncash Investing And Financing Activities Change In Unrealized Gains On Securities Available For Sale The change in unrealized holding gain (loss), net of tax, on available-for-sale securities included in a separate component of shareholders' equity noncash investing or financing activities. Acquisition of real estate through foreclosure SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Acquisition Through Foreclosure Financed sales of foreclosed assets Financed Sales Of Foreclosed Assets Represents the amount of financed sales of foreclosed assets in non-cash investing and financing activities. Change in goodwill due to acquisition Goodwill, Acquired During Period Fair Value Disclosures Fair Value Disclosures [Text Block] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] Fair Value, Inputs, Level 1 [Member] Significant Other Observable Inputs (Level 2) [Member] Fair Value, Inputs, Level 2 [Member] Significant Other Unobservable Inputs (Level 3) [Member] Fair Value, Inputs, Level 3 [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Impaired loans Impaired Loans Fair Value Disclosure Representing impaired loans fair value disclosure. Foreclosed assets Foreclosed Assets Fair Value Representing foreclosed assets fair value. Earnings Per Share [Abstract] Earnings per share Earnings Per Share [Text Block] Loans and Allowance for Loan Losses Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Interest Rate Swap, Liability [Member] Interest Rate Swap, Liability [Member] Interest Rate Swap, Liability [Member] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Weighted average remaining maturity Derivative, Average Remaining Maturity Weighted Average Pay Rate Derivative, Average Variable Interest Rate Derivative liability, notional amount Derivative Liability, Notional Amount Hedged liability, fair value Hedged Liability, Fair Value Hedge Mortgage-backed securities [Member] Residential Mortgage Backed Securities [Member] Securities available-for-sale, at fair value Derivative financial instruments Derivative Liability Organization, Consolidation and Presentation of Financial Statements [Abstract] Presentation of Financial Information Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Leases [Abstract] Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Operating lease liabilities Operating Lease, Liability Net income available to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Effect of dilutive stock options (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Diluted shares (in shares) Weighted Average Number of Shares Outstanding, Diluted Basic earnings per common share (in dollars per share) Earnings Per Share, Basic Diluted earnings per common share (in dollars per share) Earnings Per Share, Diluted Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock [Member] Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) [Member] AOCI Attributable to Parent [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] BALANCE Stockholders' Equity Attributable to Parent Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Issuance of stock grants and restricted stock Stock Granted, Value, Share-based Compensation, Gross Exercise of stock options Stock Issued, Value, Stock Options Exercised, Net of Tax Benefit (Expense) Stock compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Stock Options, Requisite Service Period Recognition BALANCE Mortgage-backed securities (GSEs) [Member] Available-for-sale, fair value, less than 12 months Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months Available-for-sale, gross unrealized losses, less than 12 months Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale, fair value, 12 months or greater Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer Available-for-sale, gross unrealized losses, 12 months or greater Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Securities available for sale Debt Securities, Available-for-sale, Unrealized Loss Position Available-for-sale, gross unrealized losses, total Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Summary of Lease Assets and Liabilities Assets And Liabilities, Lessee [Table Text Block] Assets And Liabilities, Lessee [Table Text Block] Summary of Lease Costs and Other Information Lease, Cost [Table Text Block] Summary of Future Minimum Payments Lessee, Operating Lease, Liability, Maturity [Table Text Block] Loans and Leases Receivable Disclosure [Table] Loans and Leases Receivable Disclosure [Table] US Government-sponsored Enterprises Debt Securities [Member] Collateral [Axis] Collateral [Axis] Collateral [Domain] Collateral [Domain] Collateral Pledged [Member] Collateral Pledged [Member] Loans and Leases Receivable Disclosure [Line Items] Loans and Leases Receivable Disclosure [Line Items] Restricted securities Debt Securities, Available-for-sale, Restricted Proceeds from sale of available-for-sale securities Proceeds from Sale of Debt Securities, Available-for-sale Realized gain (loss) Debt Securities, Available-for-sale, Realized Gain (Loss) Proceeds from call of debt security Proceeds From Calls Of Debt Securities, Available-For-Sale Proceeds From Calls Of Debt Securities, Available-For-Sale Number of positions Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions Antidilutive securities excluded from computation of earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Allowance for loan losses Loans and Leases Receivable, Allowance Mortgage-backed securities [Member] Collateralized Mortgage Backed Securities [Member] Securities Available for Sale, Due in one year or less, Amortized Cost Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost Securities Available for Sale, Due from one year to five years, Amortized Cost Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost Securities Available for Sale, Due from five years to ten years, Amortized Cost Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost Securities Available for Sale, Due after ten years, Amortized Cost Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost Securities Available for Sale, Amortized Cost Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost Mortgage-backed securities, Amortized Cost Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost Securities Available for Sale, Due in one year or less, Fair Value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value Securities Available for Sale, Due from one year to five years, Fair Value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value Securities Available for Sale, Due from five years to ten years, Fair Value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value Securities Available for Sale, Due after ten years, Fair Value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value Securities Available for Sale, Fair Value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value Mortgage-backed securities, Fair Value Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value Securities available for sale March 31, 2020 Lessee, Operating Lease, Liability, Payments, Due Next Rolling Twelve Months March 31, 2021 Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Two March 31, 2022 Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Three March 31, 2023 Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Four March 31, 2024 Lessee, Operating Lease, Liability, Payments, Due in Rolling Year Five Thereafter Lessee, Operating Lease, Liability, Payments, Due after Rolling Year Five Total future minimum lease payments Lessee, Operating Lease, Liability, Payments, Due Amounts representing interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Present value of net future minimum lease payments Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Non PCI Loans [Member] Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Impaired loans without a valuation allowance, Recorded Investment Impaired Financing Receivable, with No Related Allowance, Recorded Investment Impaired loans without a valuation allowance, Unpaid Principal Balance Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance Impaired loans without a valuation allowance, Average Recorded Investment Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment Impaired loans without a valuation allowance, Interest Income Recognized Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method Impaired loans with a valuation allowance, Recorded Investment Impaired Financing Receivable, with Related Allowance, Recorded Investment Impaired loans with a valuation allowance, Unpaid Principal Balance Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance Impaired loans with a valuation allowance, Related Allowance Impaired Financing Receivable, Related Allowance Impaired loans with a valuation allowance, Average Recorded Investment Impaired Financing Receivable, with Related Allowance, Average Recorded Investment Impaired loans with a valuation allowance, Interest Income Recognized Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method Total impaired loans, Recorded Investment Impaired Financing Receivable, Recorded Investment Total impaired loans, Unpaid Principal Balance Impaired Financing Receivable, Unpaid Principal Balance Total impaired loans, Average Recorded Investment Impaired Financing Receivable, Average Recorded Investment Total impaired loans, Interest Income Recognized Impaired Financing Receivable, Interest Income, Cash Basis Method Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Schedule of Fair Value Hedge Relationships in Balance Sheet Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Fair Value Hedge Relationships on Income Statement Derivative Instruments, Gain (Loss) [Table Text Block] Schedule of Fair Value Hedges Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Interest Rate Swap [Member] Interest Rate Swap [Member] Number of derivative instruments Derivative, Number of Instruments Held Notional amount Derivative, Notional Amount Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Commitments and Contingent Liabilities Commitments and Contingencies Disclosure [Text Block] Weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Trading Symbol Trading Symbol Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Loan Restructuring Modification Name [Axis] Loan Restructuring Modification Name [Axis] Loan Restructuring Modification Name [Domain] Loan Restructuring Modification Name [Domain] Trouble Debt Restructuring [Member] Trouble Debt Restructuring [Member] Financing Receivable, Modifications [Line Items] Financing Receivable, Modifications [Line Items] Loan portfolio segments Number of Reportable Segments Loans that met criteria for restructured Financing Receivable, Modifications, Recorded Investment Number of contracts, nonaccrual Financing Receivable, Nonaccrual, Number Of Contracts Financing Receivable, Nonaccrual, Number Of Contracts Number of contracts Financing Receivable, Modifications, Number of Contracts Number of contracts, subsequent payment default Financing Receivable, Modifications, Subsequent Default, Number of Contracts Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Weighted Average [Member] Weighted Average [Member] Level 3 [Member] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Impaired loans Impaired loans, measurement input Impaired Loans, Measurement Input Impaired Loans, Measurement Input Foreclosed assets Foreclosed assets, measurement input Foreclosed Assets, Measurement Input Foreclosed Assets, Measurement Input New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2016-02 [Member] Accounting Standards Update 2016-02 [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Table] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Table] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items] Total loans Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance Less remaining purchase discount Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Purchase Discount This relates to loans not accounted for as debt securities, with evidence for the purchase discount and which loans are not transferred. Total loans, net of purchase discount Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Net Of Purchase Discount This relates to loans not accounted for as debt securities, with evidence for the net of purchase which is acquired in the transfer of certain loans. Less: Allowance for loan losses Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses Carrying amount, net of allowance Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net Schedule of Available-For-Sale Securities Reconciliation Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Investments Classified by Contractual Maturity Date Investments Classified by Contractual Maturity Date [Table Text Block] Schedule of Unrealized Loss on Investments Schedule of Unrealized Loss on Investments [Table Text Block] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Carrying Amount [Member] Reported Value Measurement [Member] Estimated Fair Value [Member] Estimate of Fair Value Measurement [Member] Level 1 [Member] Level 2 [Member] Assets: Assets [Abstract] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Restricted investments Investment Owned, Restricted, Cost Loans, net Loans Receivable, Fair Value Disclosure Liabilities: Liabilities [Abstract] Noninterest-bearing demand deposits Noninterest-bearing Deposit Liabilities Interest-bearing demand deposits Demand Deposit Accounts Money Market and Savings deposits Savings Deposits and Money Market Accounts Fair Value Representing savings deposits and money market accounts fair value. Time deposits Time Deposits Securities sold under agreements to repurchase Federal Funds Purchased and Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure Federal Home Loan Bank advances and other borrowings Federal Home Loan Bank Borrowings, Fair Value Disclosure Subordinated debt Subordinated Debt Obligations, Fair Value Disclosure Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Interest Income Interest Income, Operating Gain (loss) on fair value hedging relationship Derivative, Gain (Loss) on Derivative, Net Schedule of Financing Receivables Past Due [Table] Schedule of Financing Receivables Past Due [Table] Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Axis] Financing Receivables, Period Past Due [Domain] Financing Receivables, Period Past Due [Domain] 30 to 60 Days Past Due and Accruing [Member] Financing Receivable, 30 to 60 Days Past Due [Member] Financing Receivable, 30 to 60 Days Past Due [Member] 61 to 89 Days Past Due and Accruing [Member] Financing Receivable, 61 to 89 Days Past Due [Member] Financing Receivable, 61 to 89 Days Past Due [Member] Past Due 90 Days or More and Accruing [Member] Financing Receivables, Equal to Greater than 90 Days Past Due [Member] Financing Receivable, Recorded Investment, Past Due [Line Items] Financing Receivable, Recorded Investment, Past Due [Line Items] Recorded investment, past due Financing Receivable, Recorded Investment, Past Due Nonaccrual Financing Receivable, Recorded Investment, Nonaccrual Status Total Past Due and NonAccrual Financing Receivable, Recorded Investment, Past Due Including Nonaccrual Status Financing receivable recorded investment past due including non accrual status. Current Loans Financing Receivable, Recorded Investment, Current Income Statement [Abstract] INTEREST INCOME Interest and Dividend Income, Operating [Abstract] Loans, including fees Interest and Fee Income, Loans and Leases Securities and interest-bearing deposits at other financial institutions Interest and Fee Income, Other Loans Federal funds sold and other earning assets Federal Funds Sold and Other Earning Assets Interest income on federal funds sold. Federal funds sold represent the excess federal funds held by one commercial bank which it lends to another commercial bank, usually at an agreed-upon (federal funds) rate of interest. Such loans generally are of short-duration (overnight) and the amount of other interest earning assets not otherwise specified in the taxonomy. Total interest income INTEREST EXPENSE Interest Expense [Abstract] Deposits Interest Expense, Deposits Securities sold under agreements to repurchase Interest Expense, Federal Funds Purchased and Securities Sold under Agreements to Repurchase Subordinated debt Interest Expense, Subordinated Notes and Debentures Federal Home Loan Bank advances and other borrowings Interest Expense Federal Home Loan Advances And Other Borrowings Interest expense incurred during the reporting period on FHLB advances other borrowings. Total interest expense Interest Expense Net interest income before provision for loan losses Interest Income (Expense), Net Provision for loan losses Provision Credit For Loan Losses Expensed Amount of (income) and expense related to loss from loan transactions. Net interest income after provision for loan losses Interest Income (Expense), after Provision for Loan Loss NONINTEREST INCOME Noninterest Income [Abstract] Customer service fees Fees And Commissions, Depositor Accounts1 Fees And Commissions, Depositor Accounts1 Gain on sale of loans and other assets Net Gains On Sales Of Loans and Other Assets The net gain (loss) resulting from a sale of other assets , loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes. Interchange and debit card transaction fees Fees And Commissions, Debit Cards1 Fees And Commissions, Debit Cards1 Other noninterest income Noninterest Income, Other Total noninterest income Noninterest Income NONINTEREST EXPENSES Noninterest Expense [Abstract] Salaries and employee benefits Labor and Related Expense Net occupancy and equipment expense Net Occupancy and Equipment Expense Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense and equipment expense including depreciation, repairs, rentals, and service contract costs. This item also includes equipment purchases which do not qualify for capitalization in accordance with the entity's accounting policy. This item may also include furniture expenses. FDIC insurance Federal Deposit Insurance Corporation Premium Expense Foreclosed assets Foreclosed Real Estate Expense Advertising Advertising Expense Data processing Information Technology and Data Processing Professional services Professional Fees Amortization of intangible assets Amortization of Intangible Assets Software as service contracts Professional and Contract Services Expense Merger expenses Business Combination, Acquisition Related Costs Other operating expenses Other Noninterest Expense Total noninterest expenses Noninterest Expense Income before income tax expense Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Net income available to common shareholders EARNINGS PER COMMON SHARE Basic (in dollars per share) Diluted (in dollars per share) Weighted average common shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Diluted (in shares) Interim Financial Information (Unaudited) Interim Financial Information Policy [Policy Text Block] Disclosure of accounting policy for determining the interim financial information. Basis of Presentation and Accounting Estimates Use of Estimates, Policy [Policy Text Block] Recently Issued and Adopted Accounting Pronouncements; Recently Issued Not Yet Effective Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Reclassifications Reclassification, Policy [Policy Text Block] Earnings Per Common Share Earnings Per Share, Policy [Policy Text Block] Allowance for Loan and Lease Losses [Roll Forward] Allowance for Loan and Lease Losses [Roll Forward] Beginning balance Loans charged off Allowance for Loan and Lease Losses, Write-offs Recoveries of loans charged off Allowance for Loan and Lease Loss, Recovery of Bad Debts Provision (reallocation) charged to expense Ending balance Statement of Financial Position [Abstract] Allowance for loan losses Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Entegra Financial Corp [Member] Entegra Financial Corp [Member] Entegra Financial Corp [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Termination fee received Business Combination, Termination Fee Received Business Combination, Termination Fee Received Less: Allowance for loan losses Loans, net Loans and Leases Receivable, Net Amount Net income available to common shareholders Other comprehensive loss, net of tax: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Unrealized holding gains (losses) on securities arising during the period, net of tax expense (benefit) of $700,014 and $(445,994) in 2019 and 2018, respectively Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax Total other comprehensive income (loss) Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent ASSETS Cash and due from banks Cash and Due from Banks Interest-bearing deposits at other financial institutions Interest-bearing Deposits in Banks and Other Financial Institutions Total cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted investments, at cost Loans, net of allowance for loan losses of $8,704,413 at March 31, 2019 and $8,275,055 at December 31, 2018 Bank premises and equipment, net Property, Plant and Equipment, Net Foreclosed assets Repossessed Assets Goodwill and core deposit intangible, net Other Intangible Assets, Net Cash surrender value of life insurance Cash Surrender Value of Life Insurance Other assets Other Assets Total assets Assets LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities and Equity [Abstract] Deposits: Deposits [Abstract] Noninterest-bearing demand deposits Interest-bearing demand deposits Money market and savings deposits Deposits, Savings Deposits Time deposits Total deposits Deposits Securities sold under agreement to repurchase Federal Funds Purchased and Securities Sold under Agreements to Repurchase Federal Home Loan Bank advances and other borrowings Federal Home Loan Bank Advances and Other Borrowings The aggregate carrying amount of all Federal Home Loan Bank loans (advances) and also includes other borrowings. Subordinated debt Subordinated Debt Accrued expenses and other liabilities Other Liabilities Total liabilities Liabilities Shareholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock - $1 par value; 2,000,000 shares authorized; None issued and outstanding as of March 31, 2019 and December 31, 2018 Preferred Stock, Value, Issued Common stock - $1 par value; 40,000,000 shares authorized; 13,951,590 and 13,933,504 shares issued and outstanding in 2019 and 2018, respectively Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total shareholders' equity Total liabilities and shareholders' equity Liabilities and Equity Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Pass [Member] Pass [Member] Watch [Member] Watch [Member] Special Mention [Member] Special Mention [Member] Substandard [Member] Substandard [Member] Doubtful [Member] Doubtful [Member] Financing Receivable, Recorded Investment [Line Items] Financing Receivable, Recorded Investment [Line Items] Carrying Amount of the Hedged Assets Hedged Asset, Fair Value Hedge Cumulative Amount of Fair Value Hedging Adjustment Included in the Carrying Amount of the Hedged Assets Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Leases Lessee, Operating Leases [Text Block] Lease Costs Lease, Cost [Abstract] Operating lease costs Operating Lease, Cost Short term lease costs Short-term Lease, Cost Variable lease costs Variable Lease, Cost Total Lease, Cost Cash paid for amounts included in the measurement of lease liabilities: Cash Flow, Operating Activities, Lessee [Abstract] Operating cash flows from operating leases Operating Lease, Payments Certain Loans Acquired in Transfer Accounted for as Debt Securities Accretable Yield Movement Schedule [Table] Certain Loans Acquired in Transfer Accounted for as Debt Securities Accretable Yield Movement Schedule [Table] Certain Loans Acquired in Transfer Accounted for as Debt Securities Accretable Yield Movement Schedule [Line Items] Certain Loans Acquired in Transfer Accounted for as Debt Securities Accretable Yield Movement Schedule [Line Items] Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] Accretable yield, beginning of period Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Additions Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Additions Accretion income Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Accretion Reclassification to accretable Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications (to) from Nonaccretable Difference Other changes, net Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Period Increase (Decrease) Accretable yield Schedule of Accounts, Notes, Loans and Financing Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Impaired and Performing Loans Receivable Schedule Of Impaired and Performing Loans Receivable [Table Text Block] Tabular disclosure of impaired and performing loans receivable during the reporting period. Schedule of Allowance for Loan Losses for Impaired and Performing Loans Receivable Schedule Of Allowance For Loan Losses For Impaired and Performing Loans Receivable [Table Text Block] Tabular disclosure of allowance for loan losses for impaired and performing loans receivable during the reporting period. Schedule of Financing Receivable Allowance for Credit Losses Schedule Of Financing Receivable Allowance For Credit Losses [Table Text Block] Schedule detailing information related to financing receivables and activity in the allowance for credit losses account by portfolio segment. Financing Receivable Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Past Due Financing Receivables Past Due Financing Receivables [Table Text Block] Impaired Financing Receivables Impaired Financing Receivables [Table Text Block] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period, Carrying Amount of Loans Certain Loans Acquired In Transfer Not Accounted For As Debt Securities, Acquired During Period Carrying Amount Of Loans [Table Text Block] Tabular disclosure of certain loans acquired in transfer not accounted for as debt securities acquired during period carrying amount of loans. Schedule of Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule of Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement [Table Text Block] Tabular disclosure of certain loans acquired in transfer accounted for as debt securities accretable yield movement. Commitments to extend credit Unused Commitments to Extend Credit Standby letters of credit Outstanding Off balance Sheet Risks Amount Liability Contractual amount for all off-balance sheet commitments.