Entity Central Index Key Other comprehensive (income) loss, reclassification adjustment from AOCI, interest cost credit arising during period before tax. 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 Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Ex Transition Period Entity Ex Transition Period Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] Cash and due from banks Cash And Due From Banks Federal funds sold Federal Funds Sold Total cash and cash equivalents Cash Cash Equivalents And Federal Funds Sold Held to maturity debt securities, at amortized cost (fair value of $351,184 and $343,188, respectively) Held To Maturity Securities Available for sale debt securities, at fair value Available For Sale Securities Debt Securities Total investment securities Marketable Securities Loans receivable, net of allowance for loan losses of $4,945 and $4,904, respectively Loans And Leases Receivable Net Reported Amount Accrued interest receivable Interest Receivable Federal Home Loan Bank stock Federal Home Loan Bank Stock Premises and equipment, net Property Plant And Equipment Net Deferred tax asset, net Deferred Income Tax Assets Net Foreclosed real estate Real Estate Acquired Through Foreclosure Bank-owned life insurance Bank Owned Life Insurance Goodwill Goodwill Other intangible assets Finite Lived Intangible Assets Net Other assets Other Assets Total assets Assets LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities And Stockholders Equity [Abstract] Interest bearing deposits Interest Bearing Deposit Liabilities Non-interest bearing deposits Noninterest Bearing Deposit Liabilities Total deposits Deposits Mortgage escrow funds Advance Payments By Borrowers For Taxes And Insurance Advances from Federal Home Loan Bank Advances From Federal Home Loan Banks Other liabilities Other Liabilities Total liabilities Liabilities Commitments and contingencies Commitments And Contingencies Preferred stock ($0.01 par value, 10,000,000 shares authorized, no shares issued or outstanding as of March 31, 2019 and June 30, 2018) Preferred Stock Value Common stock ($0.01 par value, 200,000,000 shares authorized, 18,712,295 and 18,165,110 shares issued, and 17,804,039 and 18,165,110 shares outstanding as of March 31, 2019 and June 30, 2018, respectively) Common Stock Value Additional paid in capital Additional Paid In Capital Retained earnings Retained Earnings Accumulated Deficit Unearned compensation - ESOP Unearned E S O P Shares Accumulated other comprehensive loss, net of income taxes Accumulated Other Comprehensive Income Loss Net Of Tax Treasury stock, at cost (908,256 shares as of March 31, 2019 and no shares as of June 30, 2018) Treasury Stock Value Total shareholders' equity Stockholders Equity Total liabilities and shareholders' equity Liabilities And Stockholders Equity Held to maturity investment securities, fair value Held To Maturity Securities Fair Value Allowance for loan losses Loans And Leases Receivable Allowance Preferred Stock, par value Preferred Stock Par Or Stated Value Per Share Preferred Stock, shares authorized Preferred Stock Shares Authorized Preferred Stock, shares issued Preferred Stock Shares Issued Preferred Stock, shares outstanding Preferred Stock Shares Outstanding Common Stock, par value Common Stock Par Or Stated Value Per Share Common Stock, shares authorized Common Stock Shares Authorized Common Stock, shares, issued Common Stock Shares Issued Common Stock, shares outstanding Common Stock Shares Outstanding Treasury Stock, Shares Treasury Stock Shares Interest income on federal funds sold and other. 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). Income Statement [Abstract] Interest and dividend income Interest And Dividend Income Operating [Abstract] Loans receivable Interest And Fee Income Loans And Leases Held In Portfolio Investment securities Interest And Dividend Income Securities Federal funds and other Interest Income Federal Funds Sold And Other Interest Income Total interest and dividend income Interest And Dividend Income Operating Interest expense Interest Expense [Abstract] Deposits Interest Expense Deposits FHLB advances Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances Long Term Total interest expense Interest Expense Net interest income Interest Income Expense Net Provision for loan losses Provision For Loan And Lease Losses Net interest income after provision for loan losses Interest Income Expense After Provision For Loan Loss Noninterest income Noninterest Income [Abstract] Fees and service charges Investment Banking Advisory Brokerage And Underwriting Fees And Commissions Bank-owned life insurance Bank Owned Life Insurance Income Gain on sale of securities, net Debt And Equity Securities Gain Loss Other Noninterest Income Other Operating Income Total noninterest income Noninterest Income Noninterest expense Noninterest Expense [Abstract] Salaries and employee benefits Labor And Related Expense Occupancy and equipment Occupancy Net Communicating and data processing Communications And Information Technology Professional fees Professional Fees Postage, printing, stationary and supplies Supplies And Postage Expense FDIC assessment Federal Deposit Insurance Corporation Premium Expense Advertising Advertising Expense Amortization of intangible assets Amortization Of Intangible Assets Other operating expenses Other Noninterest Expense Total noninterest expense Noninterest Expense Net income before income tax expense Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Income tax expense Income Tax Expense Benefit Net income Net Income Loss Earnings per common share: Earnings Per Share [Abstract] Basic Earnings Per Share Basic Diluted Earnings Per Share Diluted Weighted average common shares: Weighted Average Number Of Shares Outstanding [Abstract] Basic Weighted Average Number Of Shares Outstanding Basic Diluted Weighted Average Number Of Diluted Shares Outstanding Statement Of Income And Comprehensive Income [Abstract] Statement [Table] Statement [Table] Retirement Plan Type Retirement Plan Type [Axis] Retirement Plan Type Retirement Plan Type [Domain] Pension Benefits [Member] Pension Plans Defined Benefit [Member] SERP Benefits [Member] Supplemental Employee Retirement Plan Defined Benefit [Member] Statement [Line Items] Statement [Line Items] Net income Other comprehensive income (loss): Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Unrealized gains (losses) on available for sale debt securities: Other Comprehensive Income Available For Sale Securities Adjustment Net Of Tax Period Increase Decrease [Abstract] Net change in unrealized gains/losses before reclassification adjustment Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax Reclassification adjustment for gains realized in net income Other Comprehensive Income Loss Reclassification Adjustment From A O C I For Sale Of Securities Before Tax Net change in unrealized gains/losses Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax Tax effect Other Comprehensive Income Loss Available For Sale Securities Tax Net of tax Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax Defined benefit pension plan and supplemental retirement plans: Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease [Abstract] Net gain (loss) arising during the period Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax Reclassification adjustment for amortization of prior service cost and net gain included in net periodic pension cost Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans Before Tax Tax effect Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans Tax Net of tax Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans Net Of Tax Total other comprehensive income (loss) Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Comprehensive income Comprehensive Income Net Of Tax Tax cuts and jobs act of 2017 reclassification from Aoci to retained earnings tax effect. Statement Of Stockholders Equity [Abstract] Equity Components Statement Equity Components [Axis] Equity Component 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] Unallocated common stock in ESOP. Unallocated Common Stock of ESOP [Member] Unallocated Common Stock Of E S O P [Member] Treasury Stock, at Cost [Member] Treasury Stock [Member] Accumulated Other Comprehensive Loss [Member] Accumulated Other Comprehensive Income [Member] Beginning Balance Begining Balance (in shares) Shares Outstanding Other comprehensive income (loss) Common stock dividends declared Dividends Common Stock Repurchase of common stock Stock Repurchased During Period Value Repurchase of common stock (in shares) Stock Repurchased During Period Shares Restricted stock awards granted Stock Issued During Period Value Restricted Stock Award Gross Restricted stock awards granted (in shares) Stock Issued During Period Shares Restricted Stock Award Gross Stock-based compensation Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Issuance of common stock Stock Issued During Period Value New Issues Reclassification of certain tax effects on other comprehensive income Tax Cuts And Jobs Act Of2017 Reclassification From Aoci To Retained Earnings Tax Effect ESOP shares committed to be released Amortization Of E S O P Award Ending Balance Ending Balance (in shares) Employee stock ownership plan ESOP number of committed to be released shares during the period. Common stock dividends declared (per share) Common Stock Dividends Per Share Declared ESOP shares committed to be released (in shares) Employee Stock Ownership Plan E S O P Number Of Committed To Be Released Shares During Period Amortization of net premiums on securities and net deferred loan origination costs. Gain (loss) on sale of foreclosed real estate. Accretion of purchase accounting adjustments. Net increase decrease in short term federal home loan borrowings advances. Net increase (decrease) in mortgage escrow funds. Statement Of Cash Flows [Abstract] OPERATING ACTIVITIES Net Cash Provided By Used In Operating Activities Continuing Operations [Abstract] Net income Profit Loss 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] Provision for loan loss Depreciation and amortization Depreciation And Amortization Amortization of net premiums on securities and net deferred loan origination costs Amortization Of Premiums And Deferred Loan Costs Net increase in accrued interest receivable Increase Decrease In Accrued Interest Receivable Net Net (gain) loss on sale of foreclosed real estate Gain Loss On Sale Of Foreclosed Real Estate Net gains on sales of securities Net (gain) loss on sales of real estate Gains Losses On Sales Of Investment Real Estate Write-down on other real estate owned Impairment Of Real Estate Stock-based compensation Share Based Compensation ESOP Compensation Employee Stock Ownership Plan E S O P Compensation Expense Earnings from cash surrender value of BOLI Life Insurance Corporate Or Bank Owned Change In Value Net accretion of purchase account adjustments Accretion Of Purchase Accounting Adjustments Other adjustments, principally net changes in other assets and liabilities Increase Decrease In Other Operating Capital Net Net cash provided by operating activities Net Cash Provided By Used In Operating Activities INVESTING ACTIVITIES Net Cash Provided By Used In Investing Activities Continuing Operations [Abstract] Purchases of investment securities: Payments To Acquire Investments [Abstract] Held to maturity Payments To Acquire Held To Maturity Securities Available for sale Payments To Acquire Available For Sale Securities Debt Sales of investment securities available for sale Proceeds From Sale Of Available For Sale Securities Debt Maturities and calls of investment securities: Proceeds From Sale Maturity And Collections Of Investments [Abstract] Held to maturity Proceeds From Sale And Maturity Of Held To Maturity Securities Available for sale Proceeds From Sale And Maturity Of Available For Sale Securities Principal (disbursements) repayments, net Payments For Proceeds From Loans And Leases Purchase of loans Payments To Acquire Loans Receivable Net purchases of FHLB stock Payments For Proceeds From Federal Home Loan Bank Stock Purchases of bank premises and equipment, net of sales Payments To Acquire Property Plant And Equipment Proceeds from sale of foreclosed real estate Proceeds From Sale Of Foreclosed Assets Net cash used in investing activities Net Cash Provided By Used In Investing Activities FINANCING ACTIVITIES Net Cash Provided By Used In Financing Activities Continuing Operations [Abstract] Net increase (decrease) in deposits Increase Decrease In Deposits Net increase in short-term FHLB advances Net Increase Decrease In Short Term Federal Home Loan Borrowings Advances Proceeds from long-term FHLB advances Proceeds From Federal Home Loan Bank Borrowings Repayment of long-term FHLB advances Repayments Of Federal Home Loan Bank Borrowings Net decrease in mortgage escrow funds Net Increase Decrease In Mortgage Escrow Funds Common stock dividends paid Payments Of Dividends Common Stock Issuance of common stock Proceeds From Issuance Of Common Stock Repurchase of common stock Payments For Repurchase Of Common Stock Net cash provided by financing activities Net Cash Provided By Used In Financing Activities Net increase (decrease) in cash and cash equivalents Cash And Cash Equivalents Period Increase Decrease Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash payments for. Supplemental information: Supplemental Cash Flow Information [Abstract] Cash paid for: Cash Payments For [Abstract] Interest Interest Paid Net Income taxes Income Taxes Paid Net Loans transferred to foreclosed real estate Transfer To Other Real Estate Accounting Policies [Abstract] Basis of Presentation Basis Of Presentation And Significant Accounting Policies [Text Block] Accounting Changes And Error Corrections [Abstract] Recent Accounting Pronouncements New Accounting Pronouncements And Changes In Accounting Principles [Text Block] Investments Debt And Equity Securities [Abstract] Investment Securities Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosure [Text Block] Receivables [Abstract] Loans Receivable Loans Notes Trade And Other Receivables Disclosure [Text Block] Equity [Abstract] Other Comprehensive Income (Loss) Comprehensive Income Note [Text Block] Compensation And Retirement Disclosure [Abstract] Post-Retirement Benefits Pension And Other Postretirement Benefits Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Banking And Thrift [Abstract] Regulatory Capital Regulatory Capital Requirements Under Banking Regulations [Text Block] Earnings Per Share Earnings Per Share [Text Block] Derivative Instruments And Hedging Activities Disclosure [Abstract] Derivatives and Hedging Derivative Instruments And Hedging Activities Disclosure [Text Block] Revenue From Contract With Customer [Abstract] Revenue From Contracts With Customers Revenue From Contract With Customer [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Share-Based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Nature of operations. Nature of Operations Nature Of Operations Policy [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Use of Estimates Use Of Estimates Recent Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Schedule of available for sale securities and held to maturity. Schedule of Amortized Cost, Gross Unrealized/Unrecognized Gains and Losses and Fair Value of Available for Sale and Held to Maturity Debt Securities Schedule Of Available For Sale Securities And Held To Maturity Table [Text Block] Fair Value and Carrying Amount of Debt Securities by Contractual Maturity Investments Classified By Contractual Maturity Date Table [Text Block] Investment Securities with Fair Value and Unrealized Losses Schedule Of Unrealized Loss On Investments Table [Text Block] Summary of Loans Receivable Schedule Of Accounts Notes Loans And Financing Receivable [Text Block] Summary of Activity in Allowance for Loan Losses by Portfolio Segment Schedule Of Credit Losses For Financing Receivables Current Table [Text Block] Summary of Balance in Allowance for Loan Losses and Recorded investment in Loans by Portfolio Segment, and Based on Impairment Method Allowance For Credit Losses On Financing Receivables Table [Text Block] Summary of Loans Individually Evaluated for Impairment (Excluding Loans Acquired with Deteriorated Credit Quality) by Class of Loans Impaired Financing Receivables Table [Text Block] Average impaired financing receivables. Summary of Average Recorded Investment and Interest Income Recognized on Loans Individually Evaluated for Impairment, by Class of Loans Average Impaired Financing Receivables Table [Text Block] Nonaccrual Loans and in Loans Past Due over 90 Days Still on Accrual Status by Class of Loans Schedule Of Financing Receivables Non Accrual Status Table [Text Block] Aging of Recorded Investment in Past Due Loans by Class of Loans Past Due Financing Receivables Table [Text Block] Summary of Risk Category of Loans by Class of Loans Financing Receivable Credit Quality Indicators Table [Text Block] Carrying amount of purchased credit impaired loans. Schedule of Carrying Amount of Purchased Credit Impaired Loans Carrying Amount Of Purchased Credit Impaired Loans Table [Text Block] Summary of Accretable Yield, or Income Expected to be Collected for Acquired Loans Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Acquired During Period Table [Text Block] Summary of Accumulated Other Comprehensive Income (Loss) Schedule Of Accumulated Other Comprehensive Income Loss Table [Text Block] Schedule of Net Periodic Benefit Cost and Other Amounts Recognized in Other Comprehensive Income Schedule Of Net Benefit Costs Table [Text Block] Shares Held by ESOP Schedule Of Employee Stock Ownership Plan E S O P Disclosures [Text Block] Summary of Assets and Liabilities Measured at Fair Value Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Table [Text Block] Summary of Quantitative Information about Level 3 Fair Value Measurements for Selected Financial Instruments Measured at Fair Value on Non-recurring Basis Fair Value Assets Measured On Nonrecurring Basis Valuation Techniques [Text Block] Summary of Carrying Amounts and Estimated Fair Values of Bank's Financial Assets and Liabilities Fair Value By Balance Sheet Grouping [Text Block] Summary of Bank's Actual Capital Amounts and Ratios Compared to Required Ratios for Minimum Capital Adequacy and for Classification as Well Capitalized Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Text Block] Schedule of Earnings Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Summary Information About Interest Rate Swaps Schedule Of Derivative Instruments [Text Block] Summary of RSA Activity Nonvested Restricted Stock Shares Activity Table [Text Block] Fair Value of Option Granted Using Weighted-Average Assumptions Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Summary of Activity Related to Stock Options Granted under Plan Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Number of subsidiaries. Basis of presentation. Basis Of Presentation [Abstract] Number of subsidiaries Number Of Subsidiaries New Accounting Pronouncements Or Change In Accounting Principle [Table] New Accounting Pronouncements Or Change In Accounting Principle [Table] Adjustments for New Accounting Pronouncements Adjustments For New Accounting Pronouncements [Axis] Type of Adoption Type Of Adoption [Member] ASU 2017-07 [Member] Accounting Standards Update201707 [Member] New Accounting Pronouncements Or Change In Accounting Principle [Line Items] New Accounting Pronouncements Or Change In Accounting Principle [Line Items] Non-service cost credits included in other operating expense Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component Schedule Of Investments [Table] Schedule Of Investments [Table] Financial Instrument Financial Instrument [Axis] Financial Instruments Transfers And Servicing Of Financial Instruments Types Of Financial Instruments [Domain] U.S. Government and Agency Obligations [Member] U S Government Agencies Debt Securities [Member] Corporate and other debt. Corporate and Other Debt Securities [Member] Corporate And Other Debt [Member] Mortgage-backed Securities - Residential [Member] Residential Mortgage Backed Securities [Member] Mortgage-backed Securities - Collateralized Mortgage Obligations [Member] Mortgage Backed Securities [Member] Mortgage-backed Securities - Commercial [Member] Commercial Mortgage Backed Securities [Member] Schedule of Investments [Line Items] Schedule Of Investments [Line Items] Available for sale, Amortized Cost Available For Sale Debt Securities Amortized Cost Basis Available for sale, Gross Unrealized/Unrecognized Gains Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax Available for sale, Gross Unrealized/Unrecognized Losses Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax Available for sale, Fair Value Held to maturity, Amortized Cost Held to maturity, Gross Unrealized/Unrecognized Gains Held To Maturity Securities Accumulated Unrecognized Holding Gain Held to maturity, Gross Unrealized/Unrecognized Losses Held To Maturity Securities Accumulated Unrecognized Holding Loss Held to maturity, Fair Value Proceeds from sale of marketable securities. Held to maturity substantial portion recognized in principal outstanding percentage. Range Range [Axis] Range Range [Member] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Sale of investment securities Proceeds From Sale Of Marketable Securities Realized gains or losses on investment securities Disposal of securities held to maturity Proceeds From Sale Of Held To Maturity Securities Realized gains from sale of securities held to maturity Held To Maturity Securities Sold Security Realized Gain Loss Held to maturity substantial portion of principal outstanding percentage Held To Maturity Substantial Portion Recognized In Principal Outstanding Percentage Held to maturity, carrying amount, 1 year or less Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount Held to maturity, carrying amount, 1 to 5 years Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount Held to maturity, carrying amount, 5 to 10 years Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount Held to maturity, carrying amount, Mortgage-backed securities and other Held To Maturity Securities Debt Maturities Without Single Maturity Date Net Carrying Amount Held to maturity, fair value, 1 year or less Held To Maturity Securities Debt Maturities Within One Year Fair Value Held to maturity, fair value, 1 to 5 years Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value Held to maturity, fair value, 5 to 10 years Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value Held to maturity, fair value, Mortgage-backed securities and other Held To Maturity Securities Debt Maturities Without Single Maturity Date Fair Value Held to maturity, fair value, Total Available for sale, amortized cost, 1 year or less Available For Sale Securities Debt Maturities Within One Year Amortized Cost Available for sale, amortized cost, 1 to 5 years Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost Available for sale, amortized cost, 5 to 10 years Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost Available for sale, amortized cost, Mortgage-backed securities and other Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost Available for sale, fair value, 1 year or less Available For Sale Securities Debt Maturities Within One Year Fair Value Available for sale, fair value, 1 to 5 years Available For Sale Securities Debt Maturities After One Through Five Years Fair Value Available for sale, fair value, 5 to 10 years Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value Available for sale, fair value, Mortgage-backed securities and other Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value Available for sale, fair value, Total Carrying amounts of securities pledged Pledged Financial Instruments Not Separately Reported Securities Pledged Available for sale, Less than 12 months, Fair Value Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Available for sale, Less than 12 months, Unrealized/Unrecognized Loss Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss Available for sale, 12 months or greater, Fair Value Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Available for sale, 12 months or greater, Unrealized/Unrecognized Loss Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss Available for sale, Total, Fair Value Debt Securities Available For Sale Unrealized Loss Position Available for sale, Total, Unrealized/Unrecognized Loss Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss Held to maturity, Less than 12 months, Fair Value Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value Held to maturity, Less than 12 months, Unrealized/ Unrecognized Loss Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss Held to maturity, 12 months or greater, Fair Value Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value Held to maturity, 12 months or greater, Unrealized/ Unrecognized Loss Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss Held to maturity, Total, Fair Value Held To Maturity Securities Continuous Unrealized Loss Position Fair Value Held to maturity, Total, Unrealized/ Unrecognized Loss Number of investment positions in available-for-sale and held-to-maturity investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement. This item represents the fair value of securities categorized as available-for-sale and held-to-maturity which are in an unrealized loss position. Total investment securities Number of securities in unrealized loss position Available For Sale And Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Fair value of securities in unrealized loss position Available For Sale And Held To Maturity Securities Continuous Unrealized Loss Position Fair Value Number of securities determined to be other-than-temporarily impaired. Other-than-temporarily impaired securities Number Of Securities Determined To Be Other Than Temporarily Impaired Loans And Leases Receivable Disclosure [Table] Loans And Leases Receivable Disclosure [Table] Receivable Type Accounts Notes Loans And Financing Receivable By Receivable Type [Axis] Receivable Receivable Type [Domain] Mortgage Loans [Member] Mortgage Receivables [Member] Commercial and consumer loans. Commercial and Consumer Loans [Member] Commercial And Consumer Loan [Member] Financing Receivable Portfolio Segment Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment Financing Receivable Portfolio Segment [Domain] Residential [Member] Residential Portfolio Segment [Member] Commercial [Member] Commercial Real Estate Portfolio Segment [Member] Construction Portfolio Segment [Member] Construction [Member] Construction Portfolio Segment [Member] Commercial Loans [Member] Commercial Portfolio Segment [Member] Home Equity Portfolio Segment [Member] Home Equity Lines Of Credit [Member] Home Equity Portfolio Segment [Member] Consumer and overdrafts portfolio segment. Consumer and Overdrafts [Member] Consumer And Overdrafts Portfolio Segment [Member] Loans and Leases Receivable Disclosure [Line Items] Loans And Leases Receivable Disclosure [Line Items] Loans receivable, before fees Loans And Leases Receivable Before Fees Gross Net deferred loan origination costs Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums Loans receivable Loans And Leases Receivable Gross Carrying Amount Allowance for loan losses Loans receivable, net Originated loans. Originated [Member] Originated Loans [Member] Acquired loans. Acquired [Member] Acquired Loans [Member] Consumer And Installment Loans Portfolio Segment [Member] Consumer And Installment Loans [Member] Consumer And Installment Loans Portfolio Segment [Member] Allowance for Loan Losses, Beginning Allowance Allowance for Loan Losses, Provision (credit) Allowance for Loan Losses, Charge-offs Allowance For Loan And Lease Losses Write Offs Allowance for Loan Losses, Recoveries Allowance For Loan And Lease Loss Recovery Of Bad Debts Allowance for Loan Losses, Ending Allowance Schedule Of Financing Receivable Allowance For Credit Losses [Table] Schedule Of Financing Receivable Allowance For Credit Losses [Table] Credit Loss Status Credit Loss Status [Axis] Credit Loss Status Credit Loss Status [Domain] Acquired with Deteriorated Credit Quality [Member] Financial Asset Acquired With Credit Deterioration [Member] Originated And Acquired Loans. Originated And Acquired Loans Originated And Acquired Loans [Member] Financing Receivable Allowance For Credit Losses [Line Items] Financing Receivable Allowance For Credit Losses [Line Items] Loans, Individually Evaluated for Impairment Financing Receivable Individually Evaluated For Impairment Loans, Collectively Evaluated for Impairment Financing Receivable Collectively Evaluated For Impairment Loans, Acquired With Deteriorated Credit Quality Notes Receivable Net Total Loans And Leases Receivable Net Of Deferred Income Allowance for Loan Losses, Individually Evaluated for Impairment Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 Allowance for Loan Losses, Collectively Evaluated for Impairment Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment Allowance for Loan Losses, Acquired With Deteriorated Credit Quality Financing Receivable Allowance For Credit Losses Allowance for Loan Losses, Total Schedule Of Impaired Financing Receivable [Table] Schedule Of Impaired Financing Receivable [Table] Financing Receivable Impaired [Line Items] Financing Receivable Impaired [Line Items] Impaired loans with no related allowance recorded, unpaid principal balance Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance Impaired loans with no related allowance recorded, recorded investment Impaired Financing Receivable With No Related Allowance Recorded Investment Impaired loans with a related allowance recorded, unpaid principal balance Impaired Financing Receivable With Related Allowance Unpaid Principal Balance Impaired loans with a related allowance recorded, recorded investment Impaired Financing Receivable With Related Allowance Recorded Investment Impaired loans, unpaid principal balance Impaired Financing Receivable Unpaid Principal Balance Impaired loans, recorded investment Allowance for loan losses Impaired financing receivable with no related allowance interest income (expense) accrual method. Impaired loans with no related allowance recorded, average recorded investment Impaired Financing Receivable With No Related Allowance Average Recorded Investment Impaired loans with no related allowance recorded, interest income recognized Impaired Financing Receivable With No Related Allowance Interest Income Expense Accrual Method Impaired loans with a related allowance recorded, average recorded investment Impaired Financing Receivable With Related Allowance Average Recorded Investment Impaired loans with a related allowance recorded, interest income recognized Impaired Financing Receivable With Related Allowance Interest Income Accrual Method Impaired loans average recorded investment Impaired Financing Receivable Average Recorded Investment Impaired loans interest income recognized Impaired Financing Receivable Interest Income Accrual Method Schedule Of Financing Receivables Past Due [Table] Schedule Of Financing Receivables Past Due [Table] Financing Receivable, Recorded Investment, Past Due [Line Items] Financing Receivable Recorded Investment Past Due [Line Items] Nonaccrual Financing Receivable Recorded Investment Nonaccrual Status Loans Past Due Over 90 Days and Still Accruing Financing Receivable Recorded Investment90 Days Past Due And Still Accruing Loans And Leases Receivable Disclosure [Abstract] Financing Receivables, Period Past Due Financing Receivables Period Past Due [Axis] Financing Receivables, Period Past Due Financing Receivables Period Past Due [Domain] 90 Days or More Past Due [Member] Financing Receivables Equal To Greater Than90 Days Past Due [Member] Acquired loans accounted for as purchased credit impaired loans Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Amount Net 30-59 Days Past Due [Member] Financing Receivables30 To59 Days Past Due [Member] 60-89 Days Past Due [Member] Financing Receivables60 To89 Days Past Due [Member] Total Past Due Financing Receivable Recorded Investment Past Due Current Financing Receivable Recorded Investment Current Total Financing receivable modifications number of contracts outstanding. Number of loans classified as troubled debt restructurings Financing Receivable Modifications Number Of Contracts Outstanding Value of loans classified as troubled debt restructurings Financing Receivable Modifications Recorded Investment Specific reserves Allowance For Credit Losses Change In Method Of Calculating Impairment Troubled debt restructurings, number of modified loans Financing Receivable Modifications Number Of Contracts2 Troubled debt restructurings with carrying amount Financing Receivable Modifications Subsequent Default Recorded Investment1 Financing receivable modifications subsequent default number of contracts cured. Financing receivable modifications subsequent default recorded investment cured. Troubled debt restructurings for which there was a payment default Financing Receivable Modifications Subsequent Default Number Of Contracts1 Increase allowance for loan loss Allowance For Loan And Lease Losses Period Increase Decrease Troubled debt restructurings for which there was a payment default cured Financing Receivable Modifications Subsequent Default Number Of Contracts Cured Troubled debt restructurings with carrying amount cured Financing Receivable Modifications Subsequent Default Recorded Investment Cured Schedule Of Financing Receivable Recorded Investment Credit Quality Indicator [Table] Schedule Of Financing Receivable Recorded Investment Credit Quality Indicator [Table] Special Mention [Member] Internal Credit Assessment [Axis] Internal Credit Assessment Internal Credit Assessment [Domain] Pass [Member] Pass [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] Total loans Schedule Of Accounts Notes Loans And Financing Receivable [Table] Schedule Of Accounts Notes Loans And Financing Receivable [Table] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts Notes And Loans Receivable [Line Items] Carrying amount of loans Carrying amount of loans, allowance Certain Loans Acquired in Transfer Accounted for as Debt Securities [Abstract] Certain Loans Acquired In Transfer Accounted For As Debt Securities [Abstract] Beginning balance Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield New loans acquired 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 from non-accretable difference Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield Reclassifications From Nonaccretable Difference Disposals Certain Loans Acquired In Transfer Accounted For As Debt Securities Accretable Yield Disposals Of Loans Ending balance Accumulated Other Comprehensive Income Loss [Table] Accumulated Other Comprehensive Income Loss [Table] Net Unrealized Gain (Loss) on Available for Sale Securities [Member] Accumulated Net Unrealized Investment Gain Loss [Member] Unrealized Losses on Retirement Plans [Member] Accumulated Defined Benefit Plans Adjustment [Member] Accumulated Other Comprehensive Income (Loss) [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income Loss [Line Items] Other comprehensive (loss) income before reclassifications Oci Before Reclassifications Before Tax Attributable To Parent Amounts reclassified from accumulated other comprehensive income Reclassification From Aoci Current Period Before Tax Attributable To Parent Less tax effect Reclassification From Aoci Current Period Tax Reclassification of certain tax effects on other comprehensive income Corporate income tax rate Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate Defined benefit plan effective date of freezing and termination. Effective date of freezing of the defined benefit pension plan Defined Benefit Plan Effective Date Of Freezing And Termination Defined Benefit Plan Net Periodic Benefit Cost [Abstract] Schedule Of Defined Benefit Plans Disclosures [Table] Schedule Of Defined Benefit Plans Disclosures [Table] Employee Pension Plan [Member] Supplemental Retirement Plan [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Service cost Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax Interest cost Other Comprehensive Income Loss Reclassification Adjustment From Aoci Interest Cost Credit Arising During Period Before Tax Expected return on plan assets Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Before Tax Amortization of prior net loss Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax Amortization of prior service cost Other Comprehensive Income Loss Amortization Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax Net periodic (benefit) cost Amount Recognized In Net Periodic Benefit Cost And Other Comprehensive Income Loss Before Tax Defined benefit plan, contributions by employer Defined Benefit Plan Contributions By Employer Employee stock ownership plan ESOP payable term. Employee stock ownership plan ESOP prime rate percentage. ESOP shares Employee Stock Ownership Plan E S O P Shares In E S O P Stock price Shares Issued Price Per Share ESOP payable term Employee Stock Ownership Plan Esop Payable Term ESOP prime rate percentage Employee Stock Ownership Plan Esop Prime Rate Percentage ESOP borrowing Employee Stock Ownership Plan E S O P Debt Structure Direct Loan Amount Number of shares committed to be released per year through 2032 Shares Held In Employee Stock Option Plan Committed To Be Released Allocated to participants Employee Stock Ownership Plan E S O P Number Of Allocated Shares Unearned Employee Stock Ownership Plan E S O P Number Of Suspense Shares Total ESOP shares Fair value of unearned shares Employee Stock Ownership Plan E S O P Deferred Shares Fair Value Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Measurement Input Type Measurement Input Type [Axis] Measurement Input Type Measurement Input Type [Domain] Measurement Input, Discount Rates [Member] Measurement Input Discount Rate [Member] Asset Class Fair Value By Asset Class [Axis] Asset Class Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain] Impaired loans. Impaired Loans [Member] Impaired Loans [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] Discount rates Other Real Estate Owned Measurement Input Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Abstract] Fair Value Hierarchy and NAV Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Level 1 [Member] Fair Value Inputs Level1 [Member] Level 2 [Member] Fair Value Inputs Level2 [Member] Level 3 [Member] Fair Value Inputs Level3 [Member] Derivative Instrument Derivative Instrument Risk [Axis] Derivative Contract Derivative Contract Type [Domain] Derivatives – Interest Rate Contracts [Member] Interest Rate Contract [Member] Foreclosed real estate. Foreclosed Real Estate [Member] Foreclosed Real Estate [Member] Residential Mortgages [Member] Measurement Frequency Fair Value By Measurement Frequency [Axis] Fair Value, Measurement Frequency Fair Value Measurement Frequency [Domain] Measured on a Recurring Basis [Member] Fair Value Measurements Recurring [Member] Measured on a Non-Recurring Basis [Member] Fair Value Measurements Nonrecurring [Member] Corporate and other debt securities. Corporate and Other Debt Securities [Member] Corporate And Other Debt Securities [Member] Total assets at fair value Assets Fair Value Disclosure Total liabilities at fair value Liabilities Fair Value Disclosure Fair value assets transfers between levels. Fair value transfers between levels Fair Value Assets Transfers Between Levels Remaining valuation allowance Net charge-offs Fair Value Inputs Quantitative Information [Abstract] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table] Valuation Approach and Technique Valuation Technique [Axis] Valuation Approach and Technique Valuation Technique [Domain] Valuation Technique, Discounted Cash Flow [Member] Valuation Technique Discounted Cash Flow [Member] Valuation technique sales comparison. Sales Comparison [Member] Valuation Technique Sales Comparison [Member] Valuation technique sales contract. Sales Contract [Member] Valuation Technique Sales Contract [Member] Measurement input, adjustments for differences in sales comparables. Adjustments for Differences in Sales Comparables [Member] Measurement Input Adjustments For Differences In Sales Comparables [Member] Measurement Input discount to sales contract. Measurement Input Discount To Sales Contract Measurement Input Discount To Sales Contract [Member] Fair Value Debt Securities, Available-for-sale, Valuation Technique [Extensible List] Other Real Estate Owned Valuation Technique Extensible List Debt Securities, Available-for-sale, Measurement Input [Extensible List] Other Real Estate Owned Measurement Input Extensible List Range or Rate Used Accrued interest receivable fair value disclosure. Mortgage escrow funds, fair value disclosure. Fair Value By Balance Sheet Grouping [Table] Fair Value By Balance Sheet Grouping [Table] Measurement Basis Fair Value By Measurement Basis [Axis] Fair Value Disclosure Item Amounts [Default] Portion At Fair Value Fair Value Disclosure [Member] Fair Value Measurement Fair Value Disclosure Item Amounts [Domain] Carrying Amount [Member] Carrying Reported Amount Fair Value Disclosure [Member] Total [Member] Estimate Of Fair Value Fair Value Disclosure [Member] Demand, negotiable order of withdrawal (NOW), money market deposits and savings accounts. Demand, NOW, Money Market Deposits and Savings Accounts [Member] Demand Negotiable Order Of Withdrawal Now Money Market Deposits And Savings Accounts [Member] Time Deposits [Member] Bank Time Deposits [Member] Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Financial assets: Financial Instruments Financial Assets Balance Sheet Groupings [Abstract] Cash and cash equivalents Cash And Cash Equivalents Fair Value Disclosure Investment securities held to maturity Investment securities available for sale Loans receivable, net Loans Receivable Fair Value Disclosure Accrued interest receivable Accrued Interest Receivable Fair Value Disclosure Federal Home Loan Bank stock Investment In Federal Home Loan Bank Stock Fair Value Disclosure Derivative assets - interest rate contracts Derivative Assets Financial liabilities: Financial Instruments Financial Liabilities Balance Sheet Groupings [Abstract] Time deposits Deposits Fair Value Disclosure Mortgage escrow funds Mortgage Escrow Funds Fair Value Disclosure FHLB advances Federal Home Loan Bank Borrowings Fair Value Disclosure Derivative liabilities - interest rate contracts Derivative Liabilities Maximum consolidated assets of bank holding companies. Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Table] Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Table] Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items] Total consolidated assets Maximum Consolidated Assets Of Bank Holding Companies Consolidated Entities Consolidated Entities [Axis] Consolidated Entities Consolidated Entities [Domain] PCSB Bank [Member] Subsidiaries [Member] Leverage (Tier 1), Bank Actual Amount Tier One Leverage Capital Common Tier 1, Bank Actual Amount Common Equity Tier One Capital Tier 1, Bank Actual Amount Tier One Risk Based Capital Total, Bank Actual Amount Capital Leverage (Tier 1), Bank Actual Ratio Tier One Leverage Capital To Average Assets Common Tier 1, Bank Actual Ratio Common Equity Tier One Capital Ratio Tier 1, Bank Actual Ratio Tier One Risk Based Capital To Risk Weighted Assets Total, Bank Actual Ratio Capital To Risk Weighted Assets Leverage (Tier 1), For Capital Adequacy Purposes Amount Tier One Leverage Capital Required For Capital Adequacy Common Tier 1, For Capital Adequacy Purposes Amount Common Equity Tier One Capital Required For Capital Adequacy Tier 1, For Capital Adequacy Purposes Amount Tier One Risk Based Capital Required For Capital Adequacy Total, For Capital Adequacy Purposes Amount Capital Required For Capital Adequacy The minimum common tier one capital Ratio (common tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. Leverage (Tier 1), For Capital Adequacy Purposes Ratio Tier One Leverage Capital Required For Capital Adequacy To Average Assets Common Tier 1, For Capital Adequacy Purposes Ratio Common Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Tier 1, For Capital Adequacy Purposes Ratio Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets Total, For Capital Adequacy Purposes Ratio Capital Required For Capital Adequacy To Risk Weighted Assets Leverage (Tier 1), To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Tier One Leverage Capital Required To Be Well Capitalized Common Tier 1, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Common Equity Tier One Capital Required To Be Well Capitalized Tier 1, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Tier One Risk Based Capital Required To Be Well Capitalized Total, To Be Well Capitalized Under Prompt Corrective Action Provisions Amount Capital Required To Be Well Capitalized The common tier 1 capital ratio (common tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action. Leverage (Tier 1), To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio Tier One Leverage Capital Required To Be Well Capitalized To Average Assets Common Tier 1, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio Common Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Tier 1, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets Total, To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio Capital Required To Be Well Capitalized To Risk Weighted Assets Tier one capital conservation buffer to risk weighted assets required under regulatory. Capital conservation buffer phase in period. Capital conservation buffer percentage required under regulatory Tier One Capital Conservation Buffer To Risk Weighted Assets Required Under Regulatory Capital conservation buffer, phase period Capital Conservation Buffer Phase In Period Capital conservation buffer percentage at beginning stage. Capital conservation buffer percentage at beginning period Capital Conservation Buffer Percentage At Beginning Stage Net income applicable to common stock Average number of common shares outstanding Weighted Average Number Of Shares Issued Basic Less: Average unallocated ESOP shares Weighted Average Number Of Shares Employee Stock Ownership Plan Shares Not Committed To Be Released Average number of common share soutstanding used to calculate basic earnings per common share Effect of equity-based awards Incremental Common Shares Attributable To Share Based Payment Arrangements Average number of common shares outstanding used to calculate diluted earnings per common share Earnings per common share: Earnings Per Share Basic And Diluted [Abstract] 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 Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Stock Options [Member] 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] Number of dilutive potential common stock equivalents Weighted Average Number Diluted Shares Outstanding Adjustment Antidilutive securities excluded from computation of earnings per share, amount Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Derivative [Table] Derivative [Table] Interest Rate Swap [Member] Interest Rate Swap [Member] Derivative [Line Items] Derivative [Line Items] Interest rate swaps Derivative Assets Liabilities At Fair Value Net Notional amounts Derivative Notional Amount Weighted average pay rates Derivative Average Fixed Interest Rate Weighted average receive rates Derivative Average Variable Interest Rate Weighted average maturity Derivative Average Remaining Maturity1 Fair value of combined interest rate swaps Interest Rate Derivative Assets At Fair Value Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Product and Service Product Or Service [Axis] Product and Service Products And Services [Domain] Fees and Service Charges on Deposit Accounts [Member] Deposit Account [Member] Interchange Income [Member] Debit Card [Member] Gain/Losses on Sales of Foreclosed Real Estate [Member] Mortgage Banking [Member] Disaggregation Of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Revenue from contracts with customers Revenue From Contract With Customer Excluding Assessed Tax Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Plan Name Plan Name [Axis] Plan Name Plan Name [Domain] Two thousand eighteen equity incentive plan. 2018 Equity Incentive Plan [Member] Two Thousand Eighteen Equity Incentive Plan [Member] Award Type Award Type [Axis] Equity Award Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Restricted stock and restricted stock units. Restricted Stock and Restricted Stock Units [Member] Restricted Stock And Restricted Stock Units [Member] Restricted Stock Awards [Member] Restricted Stock [Member] Title of Individual Title Of Individual [Axis] Relationship to Entity Title Of Individual With Relationship To Entity [Domain] Non employee director. Non-Employee Directors [Member] Non Employee Director [Member] Vesting Vesting [Axis] Vesting Vesting [Domain] Annual vesting on each anniversary. Annual Vesting on Each Anniversary [Member] Annual Vesting On Each Anniversary [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Number of shares authorized for issuance Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Number of stock options granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Number of other than stock options granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Number of additional stock options or time based restricted stock awards authorized Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized Vesting period Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Number of shares available for grant Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Awards vesting percentage for year Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage Number of Shares, Unvested allocated shares outstanding beginning balance Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Number of Shares, granted Number of Shares, vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Number of Shares, forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Number of Shares, Unvested allocated shares outstanding ending balance Weighted-Average Grant Date Fair Value, Unvested allocated shares outstanding beginning balance Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value, Shares granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value, Shares vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value, Forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value, Unvested allocated shares outstanding ending balance Unrecognized compensation cost Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Expected weighted-average period for cost recognition Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Share based compensation arrangements by share based payment award contractual term. Contractual term Share Based Compensation Arrangements By Share Based Payment Award Contractual Term Risk-free interest rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Expected term Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 Expected stock price volatility Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Dividend yield Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Weighted average fair value of options granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Number of Options, outstanding beginning balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Number of Options, granted Numebr of Options, expired Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period Number of Options, exercised Stock Issued During Period Shares Stock Options Exercised Number of Options, outstanding ending balance Number of Option, Fully vested and expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number Number of Option, Exercisable at December 31, 2018 Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Weighted-Average Exercise Price, Option outstanding beginning balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Weighted-Average Exercise Price, Option granted Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Weighted-Average Exercise Price, Option expired Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price Weighted-Average Exercise Price, Option exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Weighted-Average Exercise Price, Option outstanding ending balance Weighted-Average Exercise Price, Fully vested and expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price Weighted-Average Excercise Price, Exercisable at December 31, 2018 Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Weighted-Average Remaining Contractual Years, Option outstanding Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Weighted-Average Remaining Contractual Years, Fully vested and expected to vest Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 Aggregate Intrinsic Value, Option outstanding Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Aggregate Intrinsic Value, Fully vested and expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value Aggregate Intrinsic Value, Exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1