Loans receivable, gross Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process Statistical Measurement [Domain] Statistical Measurement [Domain] Amortized Cost, Estimated Fair Value, and Gross Unrealized Gains and Losses Of AFS Securities Debt Securities, Available-for-Sale [Table Text Block] Changes in unrealized gains/losses on AFS securities, tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax Commission file number Entity File Number Additional Paid-In Capital [Member] Additional Paid-in Capital [Member] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Nonaccrual loans with no ACL Financing Receivable, Excluding Accrued Interest, Nonaccrual, No Allowance Pledged Status [Axis] Pledged Status [Axis] Schedule Of Carrying Amounts And Estimated Fair Values Of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Available-for-sale Securities, Gross Unrealized Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Measurement Basis [Axis] Measurement Basis [Axis] Basic earnings per share ("EPS") Basic Earnings Per Share, Basic Other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Recoveries Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Recovery Total other comprehensive (loss) income, net of tax Other comprehensive (loss) income, net of tax Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Deposit and loan transaction costs Deposit And Loan Transaction Costs Expense paid for miscellaneous loan fees that are not deferred, and fees related to deposit transactions, such as debit card processing, electronic banking, and ATM networks. Deposits Deposits, Fair Value Disclosure Measurement Input Type [Domain] Measurement Input Type [Domain] Other assets, net Increase (Decrease) in Other Operating Assets Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Lack of Marketability [Member] Measurement Input, Discount for Lack of Marketability [Member] Total Charge-offs Charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Interest rate swap, notional amount Derivative Asset, Notional Amount Information technology and related expense Communications and Information Technology Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts and Financing Receivables [Table] Other [Member] Consumer Loan [Member] Changes in unrealized gains/losses on cash flow hedges, tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax Total stockholders' equity Balance Balance Equity, Attributable to Parent Measurement Frequency [Axis] Measurement Frequency [Axis] Common stock, shares authorized Common Stock, Shares Authorized Repayments on borrowings Repayments on borrowings Repayments on borrowings Assets: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity Fair Value, Recurring [Member] Fair Value, Recurring [Member] State and Local Jurisdiction [Member] State and Local Jurisdiction [Member] Cover [Abstract] Cover [Abstract] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Maximum [Member] Maximum [Member] Accounting Policies [Abstract] Accounting Policies [Abstract] Schedule Of Carrying Value Of Securities Pledged As Collateral Schedule Of Carrying Value Of Securities Pledged As Collateral [Table Text Block] Schedule Of Carrying Value Of Securities Pledged As Collateral. Year One Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Borrowings Debt, Long-Term and Short-Term, Combined Amount Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Financial Asset, Equal to or Greater than 90 Days Past Due [Member] LIABILITIES: Liabilities [Abstract] Cash and cash equivalents Interest Income, Deposits with Financial Institutions Financing Receivable, Modified, Weighted Average Term Increase from Modification Financing Receivable, Modified, Weighted Average Term Increase from Modification Summary of Loans Receivable Summary Of Loans Receivable By Category [Table Text Block] Tabular disclosure of the various types of loans receivable and for each the gross carrying value as of the balance sheet date. INCOME BEFORE INCOME TAX EXPENSE Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Shell company indicator Entity Shell Company Revolving Line of Credit Converted to Term Loan Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan Other liabilities Accounts Payable and Other Accrued Liabilities Schedule Of Borrowed Funds [Table] Schedule of Long-Term Debt Instruments [Table] Proceeds from sale of premises and equipment Proceeds from Sale of Property, Plant, and Equipment Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Correspondent Purchased [Member] One To Four Family Loans Correspondent Purchased [Member] Correspondent purchased loan secured by residential real estate as a single family home or a multi-unit dwelling of two to four units. Unrealized gains (losses) on cash flow hedges arising during the period, net of taxes of $(182), $225, $(208) and $(531) Other comprehensive income (loss), before reclassifications - Cash Flow Hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Mortgage-backed securities ("MBS") Interest Income, Securities, Mortgage-Backed Year Three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Prior Years Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff Total interest expense Interest Expense, Operating Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Measurement Input Type [Axis] Measurement Input Type [Axis] Net change in deposits Increase (Decrease) in Deposits Proceeds from calls, maturities and principal reductions of AFS securities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Off-balance sheet credit exposures Off-balance sheet credit exposures Credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, undisbursed portions of loans, or financial guarantee not accounted for as insurance. Deferred state income tax liabilities, net Deferred Income Tax Liabilities, Net Document Fiscal Period Focus Document Fiscal Period Focus Unearned compensation, Employee Stock Ownership Plan ("ESOP") Unearned ESOP Shares Amortization of deferred amounts related to FHLB advances, net Amortization of Deferred Amounts Related to fhlb Advances, Net Includes amortization of deferred gains and prepayment penalties related to FHLB advances or derivatives related to FHLB advances. Investment securities Interest Income, Debt Securities, Operating Nonaccrual loans Financing Receivable, Excluding Accrued Interest, Nonaccrual Schedule Of Estimated Fair Value And Gross Unrealized Losses Of Securities In Continuous Unrealized Loss Position Unrealized Gain (Loss) on Investments [Table Text Block] Modifications, Subsequent Default Financing Receivable, Modified, Subsequent Default [Table Text Block] Available-for-sale securities, Amortized Cost Available-for-sale Securities, Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Interest rate swap, future amount to be reclassified from AOCI Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred TOTAL ASSETS Assets Trading symbol Trading Symbol Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Originated [Member] One To Four Family Loans Originated [Member] One To Four Family Loans Originated [Member] Non-taxable securities Interest Income, Securities, Operating, Tax Exempt Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Loans receivable, measurement input Loans Receivable, Measurement Input Value of input used by financial institution to measure loans receivable at fair value City of principal executive offices location Entity Address, City or Town CASH FLOWS FROM OPERATING ACTIVITIES: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Summary Of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Marketable Securities [Line Items] Marketable Securities [Line Items] FRB of Kansas City borrowings [Member] Federal Reserve Bank [Member] Assets pledged as collateral for Federal Reserve Bank borrowings Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Borrowings Interest Expense, Borrowings Amortization of net deferred loan fees and premiums Amortization of Deferred Loan Origination Fees, Net Emerging Growth Company indicator Entity Emerging Growth Company Cash dividends to stockholders Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Significant Other Observable Inputs (Level 2) [Member] Fair Value, Inputs, Level 2 [Member] Bulk Purchased [Member] One To Four Family Loans Bulk Purchased [Member] Bulk purchased loan secured by residential real estate as a single family home or a multi-unit dwelling of two to four units. Total non-interest income Noninterest Income Common stock, shares outstanding Common Stock, Shares, Outstanding Asset Pledged as Collateral [Member] Asset Pledged as Collateral [Member] Loan-to-value ratio securing commercial real estate loans, maximum Loan To Value Ratio For Securing Commercial Real Estate Loans Maximum Loan To Value Ratio For Securing Commercial Real Estate Loans Maximum Outstanding Loan Balance for Commercial Total Relationship Annual Review Minimum Outstanding Loan Balance for Commercial Total Relationship Annual Review Minimum Outstanding Loan Balance for Commercial Total Relationship Annual Review Minimum NON-INTEREST EXPENSE: Noninterest Expense [Abstract] Schedule Of Contractual Maturities Investments Classified by Contractual Maturity Date [Table Text Block] Financing Receivable, Recorded Investment, Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Changes in: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Financial Asset, 30 to 89 Days Past Due [Member] Financing Receivables, 30 to 89 Days Past Due [Member] Financing receivables that are more than 29 days past due but fewer than 90 days past due. Accumulated Deficit [Member] Retained Earnings [Member] Income Tax Authority, Name [Axis] Income Tax Jurisdiction [Axis] Pledged Status [Domain] Pledged Status [Domain] Zip code of principal executive offices location Entity Address, Postal Zip Code Beginning of year End of year Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Interest rate swap Derivative Asset INCOME TAX EXPENSE Income Tax Expense (Benefit) Available-for-sale Securities, Continuous Unrealized Loss Position, Equal to or Greater Than 12 Months, Estimated Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Other assets Other Assets Fair Value, Nonrecurring [Member] Fair Value, Nonrecurring [Member] Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss [Abstract] Preferred stock, shares issued Preferred Stock, Shares Issued Financing Receivable, Modified [Table] Financing Receivable, Modified [Table] Other non-interest income Noninterest Income, Other Provision for credit losses Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Product and Service [Domain] Product and Service [Domain] Fair Value, Hierarchy [Axis] Fair Value Hierarchy and NAV [Axis] Other comprehensive income (loss) - Cash Flow Hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax FHLB Advances, Variable Rate Federal Home Loan Bank, Advances, Maturities Summary, Floating Rate Office supplies and related expense Supplies and Postage Expense Advances by borrowers Advance Payments by Borrowers for Taxes and Insurance Revolving Line of Credit Financing Receivable, Excluding Accrued Interest, Revolving OREO Other Real Estate Telephone number - Area code City Area Code Allowance for Credit Losses Financing Receivable, Allowance for Credit Loss [Table Text Block] FHLB stock Investment in Federal Home Loan Bank Stock, Fair Value Disclosure CASH FLOWS FROM INVESTING ACTIVITIES: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation FHLB Advances, Term Debt Instrument, Term AFS securities, at estimated fair value (amortized cost of $795,659, $809,099 and $847,369) AFS securities Available-for-sale Securities, Estimated Fair Value Available-for-sale Securities, Estimated Fair Value Debt Securities, Available-for-Sale, Excluding Accrued Interest Preferred stock, par value Preferred Stock, Par or Stated Value Per Share NET INTEREST INCOME Interest Income (Expense), Operating Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Loan-to-value ratio securing commercial construction loans, maximum Loan to Value Ratio for Securing Commercial Construction Loans Maximum For commercial construction loans, the maximum acceptable loan to value ratio Income taxes receivable, net Income Taxes Receivable Equity Components [Axis] Equity Components [Axis] Year Four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Available-for-sale Securities, Included in maturity categories, Estimated Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value Deposits Deposits, Domestic State of principal executive offices location Entity Address, State or Province Substandard [Member] Substandard [Member] Total interest and dividend income Interest and Dividend Income, Operating Financial Asset, Aging [Domain] Financial Asset, Aging [Domain] Special Mention [Member] Special Mention [Member] Loans individually evaluated for loss Loans receivable Loans Receivable, Fair Value Disclosure NET INCREASE IN CASH AND CASH EQUIVALENTS Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation Liabilities: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Net EPS Earnings Per Share Reconciliation [Abstract] Income Tax Authority, Name [Domain] Income Tax Jurisdiction [Domain] Commercial Real Estate [Member] Commercial Real Estate Portfolio Segment [Member] Additional paid-in capital Additional Paid in Capital, Common Stock Modifications, Past Due Financing Receivable, Modified, Past Due [Table Text Block] Net cash provided by (used in) investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Document Fiscal Year Focus Document Fiscal Year Focus MBS, Amortized Cost Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Premiums/deferred costs Financing Receivable, Unamortized Purchase Premium (Discount) Interactive data current reporting status indicator Entity Interactive Data Current Public Unit Deposits [Member] Public Unit Deposits [Member] Assets pledged as collateral for public unit deposits Estimated Selling Costs [Member] Measurement Input, Cost to Sell [Member] Carrying Amount [Member] Reported Value Measurement [Member] Unrestricted cash collateral from derivative counterparties, net Increase (Decrease) Cash Collateral from Counterparties Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] Financing Receivable, Modified [Line Items] Financing Receivable, Modified [Line Items] Home Equity [Member] Home Equity Line of Credit [Member] INTEREST AND DIVIDEND INCOME: Interest and Dividend Income, Operating [Abstract] Other Comprehensive Income Components [Domain] Other Comprehensive Income Location [Domain] Total non-interest expense Noninterest Expense 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] Net operating loss carryforward Deferred Tax Assets, Operating Loss Carryforwards Payment Deferral [Member] Payment Deferral [Member] Deposits Interest Expense, Deposits NON-INTEREST INCOME: Noninterest Income [Abstract] Doubtful [Member] Doubtful [Member] Accumulated Other Comprehensive Income Comprehensive Income (Loss) Note [Text Block] Weighted Average [Member] Weighted Average [Member] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Deferred loan fees/discounts Financing Receivable, Unamortized Loan Cost (Fee) Amortization of intangible assets Amortization of Intangible Assets Deferred federal income tax assets, net Deferred Income Tax Assets, Net Repurchase of common stock and excise taxes Stock Repurchased During Period, Value Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Entity Central Index Key Entity Central Index Key Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Insurance commissions [Member] Insurance Services [Member] Services provided in the capacity of an agent between the Company's customer and the insurance carrier Residential MBS [Member] Residential Mortgage-Backed Securities [Member] Credit Quality Indicators Financing Receivable Credit Quality Indicators [Table Text Block] Originations of loans receivable held-for-sale ("LHFS") Payment for Origination, Loan, Mortgage, Held-for-Sale Filer category Entity Filer Category FHLB stock FHLB stock dividends Dividend Income, Operating Telephone number Local Phone Number Replacement FHLB Advances [Member] Replacement FHLB Advances [Member] Replacement FHLB Advances Beginning Balance Ending Balance Off-Balance-Sheet, Credit Loss, Liability Tax credit carryforward, expiration Tax Credit Carryforward, Limitations on Use ASSETS: Assets [Abstract] Carrying value of residential OREO Real Estate Acquired Through Foreclosure Fair Value Of Financial Instruments Fair Value Disclosures [Text Block] STOCKHOLDERS' EQUITY: Equity, Attributable to Parent [Abstract] Address of principal executive offices location Entity Address, Address Line One Modifications on Financing Receivables Financing Receivable, Modified [Table Text Block] Proceeds from the redemption of FHLB stock Proceeds from Sale of Federal Home Loan Bank Stock AOCI [Member] AOCI Attributable to Parent [Member] Revolving Line of Credit Converted to Term Loan Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan, Writeoff Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Financing Receivable, by Credit Quality Indicator [Domain] Internal Credit Assessment [Domain] Financing Receivable, Modified, Commitment to Lend Financing Receivable, Modified, Commitment to Lend Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Amount reclassified from AOCI, deferred income taxes Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax Registrant Name Entity Registrant Name Amount reclassified from AOCI - AFS Securities Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax Operating loss carryforwards Operating Loss Carryforwards Year Five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Financing Receivable, Modified, Subsequent Default [Line Items] Financing Receivable, Modified, Subsequent Default [Line Items] Salaries and employee benefits Labor and Related Expense Depreciation and amortization of premises and equipment Depreciation, Nonproduction Income taxes receivable, net Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Quarterly Report indicator Document Quarterly Report Available-for-sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Estimated Fair Value Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Assets, Fair Value Disclosure Assets Assets, Fair Value Disclosure PROVISION FOR CREDIT LOSSES Provision for credit losses Provision for Loan, Lease, and Other Losses Income from bank-owned life insurance ("BOLI") Bank Owned Life Insurance Income Financial Asset, Past Due [Member] Financial Asset, Past Due [Member] Nonaccrual Loans Financing Receivable, Nonaccrual [Table Text Block] Operating loss carryforwards, expiration Operating Loss Carryforwards, Limitations on Use Amortization and accretion of premiums and discounts on securities Accretion (Amortization) of Discounts and Premiums, Investments Interest rate swap, collateral held Derivative Asset, Fair Value of Collateral Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Available-for-sale Securities, Gross Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Amortized Cost, Modified, Subsequent Default Financing Receivable, Modified, Subsequent Default Advertising and promotional Advertising Expense FHLB Advances, Prepayment Penalties Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Repayment and Penalties Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Estimated Fair Value [Member] Estimate of Fair Value Measurement [Member] Deposit service fees [Member] Deposit Account [Member] Financing Receivable, Past Due [Line Items] Financing Receivable, Past Due [Line Items] Available-for-sale Securities, Five years through ten years, Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Accumulated other comprehensive income ("AOCI"), net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax Unemployment Rate Unemployment Rate US National Unemployment Rate Other comprehensive income (loss) - AFS Securities OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Financial Instruments [Domain] Financial Instruments [Domain] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Debt service coverage ratio for commercial real estate loans, minimum Debt Service Coverage Ratio For Commercial Real Estate Loans Minimum For commercial real estate loans, the minimum acceptable debt service coverage ratio. Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Reclassification adjustment for cash flow hedge amounts included in net income, net of taxes of $44, $177, $109 and $399 Interest rate swap, amount reclassified from AOCI Amount reclassified from AOCI - Cash Flow Hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Pledging Purpose [Domain] Pledging Purpose [Domain] Minimum [Member] Minimum [Member] NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES Interest Income (Expense), after Provision for Loan Loss INTEREST EXPENSE: Interest Expense, Operating and Nonoperating [Abstract] Loans Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Fair Value, Disclosure Item Amounts [Domain] Fair Value Measurement [Domain] Purchase of AFS securities Payments to Acquire Debt Securities, Available-for-Sale Borrowed Funds Debt Disclosure [Text Block] Preferred stock, $0.01 par value; 100,000,000 shares authorized, no shares issued or outstanding Preferred Stock, Value, Issued Year Two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Financial Asset, Aging [Axis] Financial Asset, Aging [Axis] Net Income available to common stockholders, diluted Net Income (Loss) Available to Common Stockholders, Diluted Common stock, $0.01 par value; 1,400,000,000 shares authorized, 127,688,691, 129,836,672 and 132,204,305 shares issued and outstanding as of March 31, 2026, December 31, 2025, and September 30, 2025, respectively Common Stock, Value, Issued Income allocated to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Loans receivable Interest and Fee Income, Loans and Leases Diluted weighted average common shares Total diluted average common shares outstanding Weighted Average Number of Shares Outstanding, Diluted Year One Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff Proceeds from BOLI death benefit Proceeds from Life Insurance Policy Smaller Reporting Company indicator Entity Small Business Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Securities: Marketable Securities [Abstract] Interest rate swap, remaining term to maturity Derivative, Average Remaining Maturity Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding Transition Report indicator Document Transition Report Amortized cost of loans in process of foreclosure Mortgage Loans in Process of Foreclosure, Amount Equity Component [Domain] Equity Component [Domain] Period End Date Document Period End Date Income Taxes Income Tax Disclosure [Text Block] Scenario [Axis] Scenario [Axis] Beginning Balance Ending Balance Equity, Including Portion Attributable to Noncontrolling Interest Document Type Document Type Significant Unobservable Inputs (Level 3) [Member] Fair Value, Inputs, Level 3 [Member] Earnings Per Share Earnings Per Share [Text Block] Marketable Securities [Table] Marketable Securities [Table] FHLB Advances, Amount Long-Term Federal Home Loan Bank Advances Product and Service [Axis] Product and Service [Axis] Revolving Line of Credit Financing Receivable, Excluding Accrued Interest, Revolving, Writeoff Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Extended Maturity and Payment Deferral [Member] Combination Extended Maturity and Payment Deferral [Member] Combination Extended Maturity and Payment Deferral Revenue from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Purchase of premises and equipment Payments to Acquire Property, Plant, and Equipment Statistical Measurement [Axis] Statistical Measurement [Axis] Year Two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff CASH AND CASH EQUIVALENTS: Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] Year Five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff Proceeds from borrowings Proceeds from FHLBank Borrowings, Financing Activities Net income available to common stockholders, basic Net Income (Loss) Available to Common Stockholders, Basic Commercial Segment [Member] Commercial Portfolio Segment [Member] Financing Receivable, Modified, after 12 Months Financing Receivable, Excluding Accrued Interest, Modified, after 12 Months Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] Fair Value, Inputs, Level 1 [Member] Federal tax credit carryforward Deferred Tax Assets, Tax Credit Carryforwards Diluted EPS Diluted Earnings Per Share, Diluted Forecast [Member] Forecast [Member] Federal insurance premium Federal Deposit Insurance Corporation Premium Expense Title of security class Title of 12(b) Security Provision for credit losses Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal) Available-for-sale Securities, Five years through ten years, Estimated Fair Value Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount Financing Receivable, Excluding Accrued Interest, Modified [Abstract] Financing Receivable, Excluding Accrued Interest, Modified [Abstract] Commercial and Industrial [Member] Commercial Loan [Member] Payment of FHLB prepayment penalties Payments of Debt Restructuring Costs Earnings Per Share [Abstract] Earnings Per Share [Abstract] Extended Maturity [Member] Extended Maturity [Member] Year Three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Borrowings Federal Home Loan Bank Borrowings, Fair Value Disclosure Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Domestic Tax Jurisdiction [Member] Domestic Tax Jurisdiction [Member] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Corporate Bonds [Member] Corporate Bond Securities [Member] FHLB Advances, Interest Rate Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Interest Rate at Period End Measurement Frequency [Domain] Measurement Frequency [Domain] Unrealized gains (losses on AFS securities arising during the period, net of taxes of $1,619, $(2,151), $1,435 and $1,590 Other comprehensive income (loss), before reclassifications - AFS Securities OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Other comprehensive income (loss), before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Total Amortized Cost Total Amortized Cost Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Loans receivable, net (ACL of $26,599, $24,572 and $24,039) Loans receivable Loans receivable, net Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Proceeds from sales of LHFS Proceeds from Sale, Loan, Mortgage, Held-for-Sale NET INCOME Net income Net Income (Loss) Attributable to Parent Premises and equipment, net Property, Plant and Equipment, Net Preferred stock, shares authorized Preferred Stock, Shares Authorized Repurchase of common stock and excise tax payments Payments for Repurchase of Common Stock Construction [Member] Construction Loans [Member] Financing Receivable, Past Due [Table] Financing Receivable, Past Due [Table] Entity current reporting status indicator Entity Current Reporting Status Unrealized Gains (Losses) on AFS Securities [Member] AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Including Noncontrolling Interest [Member] Accumulated deficit Retained Earnings (Accumulated Deficit) One- to Four-Family Segment [Member] Residential Portfolio Segment [Member] Purchase of BOLI Payment to Acquire Life Insurance Policy, Investing Activities Financial Instrument [Axis] Financial Instrument [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position, Equal to or Greater Than 12 Months, Unrealized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Common stock committed to be released for allocation - ESOP Employee Stock Ownership Plan (ESOP), Compensation Expense Current Fiscal Year End Date Current Fiscal Year End Date Available-for-sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Unrealized Losses Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss OREO, measurement input Other Real Estate Owned, Measurement Input Professional and other services Professional Fees Statement [Table] Statement [Table] Federal Home Loan Bank Topeka ("FHLB") stock, at cost Federal Home Loan Bank Stock Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Other non-interest expense Other Noninterest Expense Financing Receivable, Modified, Payment Deferral, Period ModifiedPaymentDeferralPeriod ModifiedPaymentDeferralPeriod Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Pass [Member] Pass [Member] Antidilutive stock options, excluded from the diluted average common shares outstanding calculation Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Amendment Flag Amendment Flag Other Comprehensive Income Components [Axis] Other Comprehensive Income Location [Axis] ESOP activity Stock Issued During Period, Value, Employee Stock Ownership Plan Delinquent Loans Financing Receivable, Past Due [Table Text Block] Change in advances by borrowers Increase (Decrease) in Advance Payments by Borrowers for Taxes and Insurance Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Interest-earning deposits Interest-Bearing Deposits in Banks and Other Financial Institutions Loans receivable, allowance for credit losses ACL Beginning Balance Ending Balance Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Schedule Of Fair Value Assets Measured On A Recurring Basis Fair Value, Assets Measured on Recurring Basis [Table Text Block] Restricted stock activity, net Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Basic weighted average common shares Total basic average common shares outstanding Weighted Average Number of Shares Outstanding, Basic Financing receivable, gross charge-offs on modified loans Financing Receivable, Modified, Increase (Decrease) from Modification Schedule Of Earnings Per Share, Basic And Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Consumer Segment [Member] Consumer Portfolio Segment [Member] Debt Disclosure [Abstract] Debt Disclosure [Abstract] IRS identification number Entity Tax Identification Number Scenario [Domain] Scenario [Domain] Year Four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff MBS, Estimated Fair Value Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value Unearned Compensation ESOP [Member] Employee Stock Ownership Plan [Member] A plan where shares of company stock are allocated to qualified employees based on the proportion of their qualifying compensation to total qualifying compensation. Funds are borrowed by the ESOP from the Company to purchase the Company's common stock and repaid from the Bank's contributions and dividends paid on unallocated ESOP shares. The shares pledged as collateral are reported as a reduction of stockholders' equity at cost. As ESOP shares are committed to be released from collateral each quarter, the Company records compensation expense based on the average market price of the Company's stock during the quarter. Additionally, the shares become outstanding for earnings per share ("EPS") computations once they are committed to be released. Proceeds from sale of other real estate owned ("OREO") Proceeds from Sale of Foreclosed Assets Cash dividends to stockholders Dividends, Cash Unrealized Gains (Losses) on Cash Flow Hedges [Member] Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] Common stock, par value Common Stock, Par or Stated Value Per Share Common stock, shares issued Common Stock, Shares, Issued Derivative Asset, balance sheet location Derivative Asset, Statement of Financial Position [Extensible Enumeration] Commercial MBS [Member] Commercial Mortgage-Backed Securities [Member] Cash dividends paid Payments of Dividends Occupancy, net Occupancy, Net Prior Years Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Name of exchange on which securities are registered Security Exchange Name Financial Asset, Not Past Due [Member] Financial Asset, Not Past Due [Member] Total liabilities Liabilities MBS [Member] Collateralized Mortgage-Backed Securities [Member] Loans Receivable And Allowance For Credit Losses Financing Receivables [Text Block] Available-for-sale Securities, Included in maturity categories, Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage Pledging Purpose [Axis] Pledging Purpose [Axis] Net change in loans receivable Payments for (Proceeds from) Loans and Leases Prepaid FHLB Advances [Member] Prepaid FHLB Advances [Member] Prepaid FHLB Advances Financing Receivable, Modified, Subsequent Default [Table] Financing Receivable, Modified, Subsequent Default [Table] Statement [Line Items] Statement [Line Items] Cash and cash equivalents (includes interest-earning deposits of $314,655, $210,223 and $229,566) Cash and Cash Equivalent Deferred income tax assets, net Increase (Decrease) in Deferred Income Taxes Common Stock [Member] Common Stock [Member] State of incorporation Entity Incorporation, State or Country Code Effect of dilutive stock options Weighted Average Number of Shares Outstanding, Diluted, Adjustment