Statement of Cash Flows [Abstract] Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Net Income (Loss) Attributable to Parent Adjustments to reconcile net income to net cash provided (used) by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Provision for loan losses Provision for Loan and Lease Losses Provision for losses on mortgage loans sold Provision for Other Losses Provision for off balance sheet credit risk Provision for Other Credit Losses Net amortization on investments Accretion (Amortization) of Discounts and Premiums, Investments Depreciation Depreciation, Nonproduction Stock-based compensation expense Share-based Compensation Director and employee compensation paid in Company stock Stock or Unit Option Plan Expense Deferred income tax benefit Deferred Income Tax Expense (Benefit) Amortization of debt issuance expense Amortization of Debt Issuance Costs (Gain) loss on sale of securities available for sale Gain (Loss) on Sale of Investments Loss on sale of foreclosed real estate Gains (Losses) on Sales of Other Real Estate Mortgage banking revenue Mortgage Banking And Servicing, Gain (Loss) Mortgage Banking And Servicing, Gain (Loss) Proceeds from sales of loans held for sale Proceeds from Sale of Loans Held-for-sale Originations of loans held for sale Payments for Origination of Mortgage Loans Held-for-sale Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accrued interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Prepaid income taxes and taxes payable Increase (Decrease) in Prepaid Taxes Other assets Increase (Decrease) in Other Operating Assets Accrued interest payable Increase (Decrease) in Interest Payable, Net Other liabilities Increase (Decrease) in Other Operating Liabilities Net cash provided (used) by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of securities available for sale Payments to Acquire Debt Securities, Available-for-sale Maturities, calls and principal paydowns of securities available for sale Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale Proceeds from sale of securities available for sale Proceeds from Sale of Debt Securities, Available-for-sale Purchases of restricted investments Payments to Acquire Restricted Investments Increase in loans receivable Payments for (Proceeds from) Loans Receivable Net (purchases) disposals of premises and equipment Payments for (Proceeds from) Productive Assets Proceeds from sales of foreclosed real estate Proceeds from Sale of Foreclosed Assets Net cash used by investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Net increase (decrease) in: Increase (Decrease), Financing Activities, Net [Abstract] Increase (Decrease), Financing Activities, Net [Abstract] Noninterest bearing deposits Net Change Noninterest-bearing Deposits, Domestic Interest bearing deposits Net Change Interest-bearing Deposits, Domestic Securities sold under agreements to repurchase Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase Federal funds purchased Increase (Decrease) in Federal Funds Sold Federal Home Loan Bank advances, net Increase (Decrease) in Loans from Federal Home Loan Banks Other borrowed funds Proceeds from (Repayments of) Other Debt Repurchase of common stock Payments for Repurchase of Common Stock Proceeds from exercise of stock options Proceeds from Stock Options Exercised Proceeds from shares issued Proceeds from Issuance of Common Stock Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Net increase 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 year Noncash activities: Noncash Investing and Financing Items [Abstract] Loans transferred to foreclosed real estate Real Estate Owned, Transfer to Real Estate Owned Change in unrealized gains (losses) on investments Unrealized Gain (Loss) on Investments Change in fair value of cash flow hedging derivative Increase (Decrease) in Fair Value of Interest Rate Fair Value Hedging Instruments Establishment of lease right-of-use asset Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Establishment of lease liability Establishment Of Lease Liability Establishment Of Lease Liability Cash paid during the period for: Supplemental Cash Flow Information [Abstract] Taxes Income Taxes Paid, Net Interest Interest Paid, Excluding Capitalized Interest, Operating Activities Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] 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 Reported Value Measurement [Member] Fair Value Estimate of Fair Value Measurement [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Level 1 Inputs Fair Value, Inputs, Level 1 [Member] Level 3 Inputs Fair Value, Inputs, Level 3 [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Financial assets Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] 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 Federal funds sold Federal Funds Sold Restricted investments Restricted Investments, at Fair Value Loans receivable, net Loans Receivable, Fair Value Disclosure Financial liabilities Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Noninterest bearing deposits Noninterest Bearing Deposit Liabilities, Fair Value Disclosure Noninterest Bearing Deposit Liabilities, Fair Value Disclosure Securities sold under agreements to repurchase Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure Interest bearing deposits Interest Bearing Deposit Liabilities, Fair Value Disclosure Interest Bearing Deposit Liabilities, Fair Value Disclosure FHLB advances and other borrowed funds Long Term Federal Home Loan Bank Advances And Other Borrowings, Fair Value Disclosure Long Term Federal Home Loan Bank Advances And Other Borrowings, Fair Value Disclosure Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [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 Accounting Standards Update 2016-02 [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Retained Earnings Retained Earnings [Member] Accumulated Other Comprehensive Loss 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] Beginning balance (in shares) Common Stock, Shares, Outstanding Beginning balance Stockholders' Equity Attributable to Parent Unrealized gain on investment securities available for sale, net of income taxes Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Unrealized loss on cash flow hedging derivative, net of income taxes Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent Stock options exercised, including tax benefit (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Stock options exercised, including tax benefit Stock Issued During Period, Value, Stock Options Exercised Shares issued as compensation (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Shares issued as compensation Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Stock-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Shares issued (in shares) Stock Issued During Period, Shares, New Issues Shares issued Stock Issued During Period, Value, New Issues Shares repurchased and retired (in shares) Stock Repurchased and Retired During Period, Shares Shares repurchased and retired Stock Repurchased and Retired During Period, Value Adoption of lease standard Cumulative Effect of New Accounting Principle in Period of Adoption Ending balance (in shares) Ending balance Accounting Policies [Abstract] Nature of Business and Basis of Presentation Significant Accounting Policies [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] Hedging Designation [Axis] Hedging Designation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Designated as Hedging Instrument Designated as Hedging Instrument [Member] Derivative Instrument Commitment, Basis Type [Axis] Derivative Instrument Commitment, Basis Type [Axis] Derivative Instrument Commitment, Basis Type [Axis] Derivative Instrument Commitment, Basis Type [Domain] Derivative Instrument Commitment, Basis Type [Domain] [Domain] for Derivative Instrument Commitment, Basis Type [Axis] Excluding Best Efforts Basis Commitments Excluding Best Efforts Basis Commitments [Member] Excluding Best Efforts Basis Commitments [Member] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Forward Contracts Forward Contracts [Member] Interest Rate Lock Commitments Interest Rate Lock Commitments [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Forward Sales Agreement Forward Sales Agreement [Member] Forward Sales Agreement [Member] Interest Rate Contract Interest Rate Contract [Member] Interest Rate Swap Interest Rate Swap [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Notional amount Derivative, Notional Amount Liability, notional amount Derivative Liability, Notional Amount Fair value of derivative Derivative, Fair Value, Net Liability, fair value of derivative Derivative Liability, Fair Value, Gross Liability Derivative, basis spread on variable rate Derivative, Basis Spread on Variable Rate Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Premises and Equipment Premises And Equipment [Member] Premises And Equipment [Member] Leasehold Improvements Leasehold Improvements [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Stock split, conversion ratio Stockholders' Equity Note, Stock Split, Conversion Ratio Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Property, plant and equipment, useful life Property, Plant and Equipment, Useful Life Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Receivables [Abstract] Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Residential Residential Portfolio Segment [Member] Commercial Commercial Portfolio Segment [Member] Construction Construction Portfolio Segment [Member] Construction Portfolio Segment [Member] Consumer Consumer Portfolio Segment [Member] Class of Financing Receivable, Type [Axis] Class of Financing Receivable, Type [Axis] Class of Financing Receivable, Type [Domain] Class of Financing Receivable, Type [Domain] Real estate Real Estate Loan [Member] Credit card Credit Card Receivable [Member] Other consumer Other Consumer [Member] Other Consumer [Member] Acquired loans Acquired Loans [Member] Acquired Loans [Member] Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Unpaid Contractual Principal Balance Impaired Financing Receivable, Unpaid Principal Balance Recorded Investment With No Allowance Impaired Financing Receivable, with No Related Allowance, Recorded Investment Recorded Investment With Allowance Impaired Financing Receivable, with Related Allowance, Recorded Investment Total Recorded Investment Impaired Financing Receivable, Recorded Investment Related Allowance Impaired Financing Receivable, Related Allowance Average Recorded Investment Impaired Financing Receivable, Average Recorded Investment Interest Recognized Impaired Financing Receivable, Interest Income, Accrual Method Income Statement [Abstract] Deposits, related party Interest Expense, Deposits, Related Party Interest Expense, Deposits, Related Party Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Loans Receivable Financing Receivables [Text Block] Schedule of Loans Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule Of Activity In Accretable Discounts On Loans Acquired Schedule Of Activity In Accretable Discounts On Loans Acquired [Table Text Block] Schedule Of Activity In Accretable Discounts On Loans Acquired [Table Text Block] Allowance for Credit Losses on Loans Receivables Allowance for Credit Losses on Financing Receivables [Table Text Block] Past Due Loans Receivables Past Due Financing Receivables [Table Text Block] Impaired Loans Receivables Impaired Financing Receivables [Table Text Block] Loans Receivables Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Troubled Debt Restructurings on Loans Receivables Troubled Debt Restructurings on Financing Receivables [Table Text Block] Schedule Of Outstanding Loan Commitments Other Commitments [Table Text Block] Schedule of Credit Losses for Financing Receivables Schedule of Credit Losses for Financing Receivables, Current [Table Text Block] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Parent Company Parent Company [Member] Affiliated Entity Affiliated Entity [Member] Counterparty Name [Axis] Counterparty Name [Axis] Counterparty Name [Domain] Counterparty Name [Domain] Selling Shareholders Selling Shareholders [Member] Selling Shareholders [Member] Sale of Stock [Axis] Sale of Stock [Axis] Sale of Stock [Domain] Sale of Stock [Domain] IPO IPO [Member] Subsidiary, Sale of Stock [Line Items] Subsidiary, Sale of Stock [Line Items] Number of shares issued in transaction (in shares) Sale of Stock, Number of Shares Issued in Transaction Sale of stock, price per share (in dollars per share) Sale of Stock, Price Per Share Sale of stock, consideration received Sale of Stock, Consideration Received on Transaction Underwriting discount and offering costs Sale Of Stock, Underwriting Discount And Offering Costs Sale Of Stock, Underwriting Discount And Offering Costs Investments, Debt and Equity Securities [Abstract] Schedule of Assets Sold under Agreements to Repurchase [Table] Schedule of Assets Sold under Agreements to Repurchase [Table] Securities sold under agreements to repurchase Securities Investment [Member] Federal Home Loan Bank advances Federal Home Loan Bank Advances [Member] Amortized Cost Fair Value Assets Sold under Agreements to Repurchase [Line Items] Assets Sold under Agreements to Repurchase [Line Items] Securities pledged Security Owned and Pledged as Collateral, Fair Value Statement of Comprehensive Income [Abstract] Other comprehensive income (loss) Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract] Unrealized gain (loss) on investment securities available for sale Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, before Tax Reclassification of realized loss on sale of investments securities available for sale Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax Unrealized gain on cash flow hedging derivative Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax, Parent Other comprehensive income (loss) Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Income tax (expense) benefit relating to the items above Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Commitments and Contingencies Disclosure [Abstract] Loss Contingencies [Table] Loss Contingencies [Table] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Lawsuit In Circuit Court For Montgomery County, Maryland Lawsuit In Circuit Court For Montgomery County, Maryland [Member] Lawsuit In Circuit Court For Montgomery County, Maryland [Member] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Settled Litigation Settled Litigation [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Number of other banking institutions, defendants Loss Contingency, Number Of Other Banking Institutions, Defendants Loss Contingency, Number Of Other Banking Institutions, Defendants Litigation settlement, amount not covered by insurance carrier Litigation Settlement, Expense Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Stock Options Employee Stock Option [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive securities excluded from computation of earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Basic EPS Earnings Per Share, Basic and Diluted [Abstract] Net income Net Income (Loss) Available to Common Stockholders, Basic Weighted average number of shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Basic earnings per share (in dollars per share) Earnings Per Share, Basic Effect of dilutive securities (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted average number of shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted U.S. government-sponsored enterprises US Government-sponsored Enterprises Debt Securities [Member] Municipal Municipal Bonds [Member] Corporate Corporate Debt Securities [Member] Mortgage-backed securities Collateralized Mortgage Backed Securities [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring Fair Value, Measurements, Recurring [Member] Level 2 Inputs Fair Value, Inputs, Level 2 [Member] Investment securities available for sale Debt Securities, Available-for-sale Loans held for sale Loans Held-for-sale, Fair Value Disclosure Derivative assets Derivative Asset Derivative liabilities Derivative Liability Litigation Legal Matters and Contingencies [Text Block] Statement of Financial Position [Abstract] Assets Assets [Abstract] Total cash and cash equivalents Cash, Cash Equivalents, and Federal Funds Sold Restricted investments Restricted Investments Loans receivable, net of allowance for loan losses of $11,913 and $11,308 at June 30, 2019 and December 31, 2018, respectively Loans and Leases Receivable, Net Amount Premises and equipment, net Property, Plant and Equipment, Net Accrued interest receivable Accrued Investment Income Receivable Deferred income taxes Deferred Income Tax Assets, Net Foreclosed real estate Real Estate Acquired Through Foreclosure Prepaid income taxes Prepaid Taxes Other assets Other Assets Total assets Assets Liabilities Liabilities [Abstract] Deposits Deposits, Interest-bearing and Noninterest-bearing, Alternative [Abstract] Noninterest-bearing, including related party balances of $10,055 and $11,214 at June 30, 2019 and December 31, 2018, respectively Noninterest-bearing Deposit Liabilities Interest-bearing, including related party balances of $119,185 and $144,624 at June 30, 2019 and December 31, 2018, respectively Interest-bearing Deposit Liabilities Total deposits Deposits Securities sold under agreements to repurchase Securities Sold under Agreements to Repurchase Federal funds purchased Federal Funds Purchased Federal Home Loan Bank advances Long-term Federal Home Loan Bank Advances Other borrowed funds Other Borrowings Accrued interest payable Interest Payable Other liabilities Other Liabilities Total liabilities Liabilities Stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $.01 par value; 1,000,000 shares authorized; no shares issued or outstanding at June 30, 2019 and December 31, 2018 Preferred Stock, Value, Issued Common stock, $.01 par value; 49,000,000 shares authorized; 13,718,665 and 13,672,479 issued and outstanding at June 30, 2019 and December 31, 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 stockholders' equity Total liabilities and stockholders' equity Liabilities and Equity Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Commitments to Extend Credit Commitments to Extend Credit [Member] Commercial Commercial real estate Commercial Real Estate Portfolio Segment [Member] Residential real estate Home equity Home Equity Loan [Member] Secured credit card Personal Personal Loan [Member] Personal Loan [Member] Construction commitments Construction Loans [Member] Loans Held For Sale Loans Held For Sale [Member] Loans Held For Sale [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Unused lines of credit Unused Commitments to Extend Credit Letters of credit Letters of Credit Outstanding, Amount Loans and Leases Receivable Disclosure [Table] Loans and Leases Receivable Disclosure [Table] Class of Financing Receivable, Type of Borrower [Axis] Class of Financing Receivable, Type of Borrower [Axis] Class of Financing Receivable, Type of Borrower [Domain] Class of Financing Receivable, Type of Borrower [Domain] Owner Occupied Real Estate Owner Occupied Real Estate [Member] Owner Occupied Real Estate [Member] Investor Real Estate Investor Real Estate [Member] Investor Real Estate [Member] Collateral [Axis] Collateral [Axis] Collateral [Domain] Collateral [Domain] Savings Deposits Savings Deposits [Member] Savings Deposits [Member] Loans and Leases Receivable Disclosure [Line Items] Loans and Leases Receivable Disclosure [Line Items] Loans receivable, gross Loans and Leases Receivable, Gross Deferred origination fees, net Loans and Leases Receivable, Deferred Income Allowance for loan losses Loans and Leases Receivable, Allowance Loans receivable, net Percent of real estate portfolio Loans And Leases Receivable, Percent Of Real Estate Portfolio Loans And Leases Receivable, Percent Of Real Estate Portfolio Fixed interest rate term Loans And Leases Receivable, Fixed Interest Rate Term Loans And Leases Receivable, Fixed Interest Rate Term Initial commitment term Loans And Leases Receivable, Initial Commitment Term Loans And Leases Receivable, Initial Commitment Term Balloon payment period Loans And Leases Receivable, Balloon Payment Period Loans And Leases Receivable, Balloon Payment Period Debt service coverage ratio Loans And Leases Receivable, Covenant Compliance, Debt Service Coverage Ratio Loans And Leases Receivable, Covenant Compliance, Debt Service Coverage Ratio Amortization period Loans And Leases Receivable, Amortization Period Loans And Leases Receivable, Amortization Period Principal to collateral value ratio, percent Loans And Leases Receivable, Principal To Collateral Value Ratio, Percent Loans And Leases Receivable, Principal To Collateral Value Ratio, Percent Repayment history used for scoring model Loans And Leases Receivable, Repayment History Used For Scoring Model Loans And Leases Receivable, Repayment History Used For Scoring Model Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Aggregate fair value Contractual principal Difference Changes Measurement [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Fair Value, Measurements, Nonrecurring Fair Value, Measurements, Nonrecurring [Member] Impaired loans, net Impaired loans, valuation allowance Impaired loans Impaired loans, discounts to appraisals or cash flows for estimated holding and/or selling costs Impaired Financing Receivable, Discounts To Appraisals Or Cash Flows For Estimated Holding And Selling Costs, Percent Impaired Financing Receivable, Discounts To Appraisals Or Cash Flows For Estimated Holding And Selling Costs, Percent Foreclosed real estate, discounts to appraisals for estimated holding and/or selling costs Foreclosed Real Estate, Discounts To Appraisals Or For Estimated Holding And Selling Costs, Percent Foreclosed Real Estate, Discounts To Appraisals Or For Estimated Holding And Selling Costs, Percent Unrealized Gain (Loss) on Investments Unrealized Gain (Loss) on Investments [Table Text Block] Schedule of Investment Portfolio in Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Schedule Of Pledged Securities Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] Investments Classified by Contractual Maturity Date Investments Classified by Contractual Maturity Date [Table Text Block] Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Unrealized Gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Unrealized Losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Fair Value Debt securities, available-for-sale, realized gain (loss) Debt Securities, Available-for-sale, Realized Gain (Loss) Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Allowance for Loan and Lease Losses [Roll Forward] Allowance for Loan and Lease Losses [Roll Forward] Balance at beginning of year Charge-Offs Allowance for Loan and Lease Losses, Write-offs Recoveries Allowance for Loan and Lease Loss, Recovery of Bad Debts Balance at end of year Allowance for Loan Losses Ending Balance Evaluated for Impairment - Individually Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Allowance for Loan Losses Ending Balance Evaluated for Impairment - Collectively Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Outstanding Loan Balances Evaluated for Impairment - Individually Financing Receivable, Individually Evaluated for Impairment Outstanding Loan Balances Evaluated for Impairment - Collectively Financing Receivable, Collectively Evaluated for Impairment Document And Entity Information [Abstract] 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 Entity Emerging Growth Company Entity Emerging Growth Company Entity Small Business Entity Small Business Entity Ex Transition Period Entity Ex Transition Period Entity Shell Company Entity Shell Company Entity Current Reporting Status Entity Current Reporting Status Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Investment Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Lease Liabilities Lease Liabilities [Member] Lease Liabilities [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Right-of-use asset Operating Lease, Right-of-Use Asset Operating lease, liability Operating Lease, Liability Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Extended Maturity Extended Maturity [Member] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Performing Performing Financial Instruments [Member] Nonperforming Nonperforming Financial Instruments [Member] Financing Receivable, Modifications [Line Items] Financing Receivable, Modifications [Line Items] Number of Contracts Financing Receivable, Modifications, Number of Contracts Recorded Investment Financing Receivable, Modifications, Recorded Investment Number of loans charged off Financing Receivable, Modifications, Number of Contracts Charged Off Financing Receivable, Modifications, Number of Contracts Charged Off Charged off loan amount Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down Leases [Abstract] Leases Lessee, Operating Leases [Text Block] 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] Loans 30-89 Days Past Due Financing Receivables, 30 To 89 Days Past Due [Member] Financing Receivables, 30 To 89 Days Past Due [Member] Loans 90 or More Days Past Due Financing Receivables, Equal to Greater than 90 Days Past Due [Member] Residential Real Estate Residential Real Estate [Member] Financing Receivable, Recorded Investment, Past Due [Line Items] Financing Receivable, Recorded Investment, Past Due [Line Items] Past Due Loans Financing Receivable, Recorded Investment, Past Due Current Loans Financing Receivable, Recorded Investment, Current Total Loans Accruing Loans 90 or More Days Past Due Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Nonaccrual Loans Financing Receivable, Recorded Investment, Nonaccrual Status Allowance for loan losses Noninterest bearing deposits, related party Noninterest Bearing Deposit Liabilities, Related Party Noninterest Bearing Deposit Liabilities, Related Party Interest bearing deposits, related party Interest Bearing Deposit Liabilities, Related Party Interest Bearing Deposit Liabilities, Related Party 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, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Fair Value Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract] AFS, Less than 12 Months, Fair Value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months AFS,12 Months or Longer, Fair Value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer AFS,Total, Fair Value Debt Securities, Available-for-sale, Unrealized Loss Position Unrealized Losses Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] AFS, Less than 12 months, Unrealized Losses Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss AFS, 12 months or longer, Unrealized Losses Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss AFS, Total, Unrealized Losses Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Number of securities in a loss position for greater than twelve months Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions Nature of operations Nature Of Operations [Policy Text Block] Nature Of Operations [Policy Text Block] Basis of presentation Basis of Accounting, Policy [Policy Text Block] Cash and cash equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Investment securities Investment, Policy [Policy Text Block] Loans held for sale Finance, Loan and Lease Receivables, Held-for-sale, Policy [Policy Text Block] Loans and Allowance for Loan Losses Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] Premises and equipment Property, Plant and Equipment, Policy [Policy Text Block] Leases Lessee, Leases [Policy Text Block] Derivative Financial Instruments Derivatives, Policy [Policy Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Earnings per share Earnings Per Share, Policy [Policy Text Block] Comprehensive income Comprehensive Income, Policy [Policy Text Block] Recently issued accounting pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Reclassifications Reclassification, Policy [Policy Text Block] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Net Investment Gain (Loss) Attributable to Parent Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Other comprehensive income (loss) before tax AOCI before Tax, Attributable to Parent Deferred tax benefit (expense) AOCI Tax, Attributable to Parent Total accumulated comprehensive loss Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Service charges on deposits Bank Servicing [Member] Credit card fees Credit Card [Member] Mortgage banking revenue Mortgage Banking [Member] Interest income Interest and Dividend Income, Operating [Abstract] Loans, including fees Interest and Fee Income, Loans and Leases Investment securities available for sale Interest Income, Debt Securities, Available-for-sale, Operating Federal funds sold and other Interest Income, Federal Funds Sold Total interest income Interest and Dividend Income, Operating Interest expense Interest Expense [Abstract] Deposits, includes payments to related parties of $459 and $976 for the three and six months ended June 30, 2019, respectively, and $350 and $689 for the three and six months ended June 30, 2018, respectively. Interest Expense, Deposits Borrowed funds Interest Expense, Borrowings Total interest expense Interest Expense Net interest income Interest Income (Expense), Net Net interest income after provision for loan losses Interest Income (Expense), after Provision for Loan Loss Noninterest income Noninterest Income [Abstract] Noninterest income Revenue from Contract with Customer, Including Assessed Tax Gain (loss) on sale of investment securities available for sale Other fees and charges Noninterest Income, Other Operating Income Total noninterest income Noninterest Income Noninterest expenses Noninterest Expense [Abstract] Salaries and employee benefits Labor and Related Expense Occupancy and equipment Occupancy And Equipment Expense Occupancy And Equipment Expense Professional fees Professional Fees Data processing Information Technology and Data Processing Advertising Advertising Expense Loan processing Loan Processing Fee Other real estate owned expenses, net Other Real Estate Expenses, Net Other Real Estate Expenses, Net Other operating Other Noninterest Expense Total noninterest expenses Noninterest Expense Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Net income Weighted average common shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Diluted (in shares) Unfunded Loan Commitment Unfunded Loan Commitment [Member] Mortgage Loans Sold Mortgage Loans Sold [Member] Mortgage Loans Sold [Member] Financing Receivable, Allowance for Credit Losses [Roll Forward] Financing Receivable, Allowance for Credit Losses [Roll Forward] Provision charged to operating expense Charge-offs Allowance for Loan and Lease Losses Write-offs, Net Fair Value Fair Value Disclosures [Text Block] Assets And Liabilities, Lessee Assets And Liabilities, Lessee [Table Text Block] Assets And Liabilities, Lessee [Table Text Block] Lessee, Operating Lease, Liability, Maturity Lessee, Operating Lease, Liability, Maturity [Table 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 Pass [Member] Special Mention Special Mention [Member] Substandard Substandard [Member] Doubtful Doubtful [Member] Financing Receivable, Recorded Investment [Line Items] Financing Receivable, Recorded Investment [Line Items] Classified loans Financing Receivable, Net Remaining nonaccretable discount Certain Loans Acquired in Transfer, Nonaccretable Difference Loans receivable, net Loans And Leases Receivable, With Nonaccretable Discounts, Net Amount Loans And Leases Receivable, With Nonaccretable Discounts, Net Amount Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward] Accretable discount at beginning of period Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Accretion and payoff of loans Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Accretable discount at end of period Number of full service branches Lessee, Operating Lease, Number Of Full Service Branches Lessee, Operating Lease, Number Of Full Service Branches Number of locations Lessee, Operating Lease, Number Of Locations Lessee, Operating Lease, Number Of Locations Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Right-of-use asset Operating Lease, Right-Of-Use Asset, Net Operating Lease, Right-Of-Use Asset, Net Operating lease, liability Operating Lease, Liability, Net Operating Lease, Liability, Net Remaining term of contract Lessee, Operating Lease, Remaining Term Of Contract Lessee, Operating Lease, Remaining Term Of Contract 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] Schedule Of Fair Value Of Loans Held For Sale Schedule Of Fair Value Of Loans Held For Sale [Table Text Block] Schedule Of Fair Value Of Loans Held For Sale [Table Text Block] Fair Value Measurements, Nonrecurring Fair Value Measurements, Nonrecurring [Table Text Block] Fair Value Measurement Inputs and Valuation Techniques Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Fair Value Measurements, Recurring and Nonrecurring Fair Value, by Balance Sheet Grouping [Table Text Block] Lease asset Less: Accumulated amortization Operating Lease, Right-Of-Use Asset, Accumulated Amortization Operating Lease, Right-Of-Use Asset, Accumulated Amortization Net lease asset Other premises and equipment, net Property, Plant and Equipment, Other, Net Premises and equipment, net Lease liability Less: Accumulated amortization Operating Lease, Liability, Accumulated Amortization Operating Lease, Liability, Accumulated Amortization Net lease liability Other miscellaneous liabilities Other Liabilities, Miscellaneous Other Liabilities, Miscellaneous Other liabilities, net Amounts due in: Operating Lease Liabilities, Payments Due [Abstract] 2019 Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year 2020 Lessee, Operating Lease, Liability, Payments, Due Year Two 2021 Lessee, Operating Lease, Liability, Payments, Due Year Three 2022 Lessee, Operating Lease, Liability, Payments, Due Year Four 2023 Lessee, Operating Lease, Liability, Payments, Due Year Five After 2023 Lessee, Operating Lease, Liability, Payments, Due after Year Five Total lease payments Lessee, Operating Lease, Liability, Payments, Due Amortized Cost Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract] AFS Debt Maturities, Within one year, Amortized Cost Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost AFS Debt Maturities, Over one to five years, Amortized Cost Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost AFS Debt Maturities, Over five to ten years, Amortized Cost Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost AFS Debt Maturities, Over ten years, Amortized Cost Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost Amortized Cost Fair Value Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract] AFS Debt Maturities, Within one year, Fair Value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value AFS Debt Maturities, Over one to five years, Fair Value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value AFS Debt Maturities, Over five to ten years, Fair Value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value AFS Debt Maturities, Over ten years, Fair Value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value