$IROQ
IF Bancorp, Inc. Stock $iroq

$iroq Overview Financials Valuation SEC Filings Company Website

2021 Q3 Form 10-K Financial Statement

#000119312521273623 Filed on September 15, 2021

Income Statement

Concept	2021 Q3	2021 Q2	2021
Revenue	$6.251M		$24.36M
YoY Change	-0.22%		-9.73%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$170.0K	$170.0K	$679.0K
YoY Change	0.59%	0.0%	1.19%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$679.0K		$4.178M
YoY Change	-50.69%		-51.94%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$2.550M	$1.340M	$7.381M
YoY Change	38.36%	-29.84%	25.44%
Income Tax	$660.0K	$350.0K	$2.034M
% Of Pretax Income	25.88%	26.12%	27.56%
Net Earnings	$1.890M	$990.0K	$5.347M
YoY Change	42.0%	-27.74%	25.96%
Net Earnings / Revenue	30.24%		21.95%
Basic Earnings Per Share	$0.62		$1.76
Diluted Earnings Per Share	$607.7K	$318.3K	$1.74
COMMON SHARES
Basic Shares Outstanding	3.240M	3.240M	3.038M
Diluted Shares Outstanding	3.115M		3.079M

Balance Sheet

Concept	2021 Q3	2021 Q2	2021
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$28.91M	$62.74M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$9.700M	$9.793M	$9.800M
YoY Change	-3.78%	-3.92%	-3.92%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$1.900M	$1.700M	$1.700M
YoY Change	171.43%	183.33%	183.33%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$767.1M	$797.3M	$797.3M
YoY Change	5.66%	8.41%	8.4%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.000M	$1.100M	$1.100M
YoY Change	-16.67%	0.0%	0.0%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$6.700M	$6.200M	$6.200M
YoY Change	52.27%	67.57%	67.57%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.000M	$1.100M	$1.100M
YoY Change	-16.67%	0.0%	0.0%
LONG-TERM LIABILITIES
Long-Term Debt	$3.000M	$3.000M	$3.000M
YoY Change	0.0%	0.0%	0.0%
Other Long-Term Liabilities	$8.000M	$9.000M	$9.000M
YoY Change	-1.23%	0.0%	0.0%
Total Long-Term Liabilities	$11.00M	$12.00M	$12.00M
YoY Change	-0.9%	0.0%	0.0%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.000M	$1.100M	$1.100M
Total Long-Term Liabilities	$11.00M	$12.00M	$12.00M
Total Liabilities	$681.0M	$712.0M	$712.0M
YoY Change	6.0%	9.05%	9.04%
SHAREHOLDERS EQUITY
Retained Earnings		$35.65M
YoY Change		14.22%
Common Stock		$49.65M
YoY Change		0.77%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$86.00M	$85.30M	$85.30M
YoY Change
Total Liabilities & Shareholders Equity	$767.1M	$797.3M	$797.3M
YoY Change	5.66%	8.41%	8.4%

Cashflow Statement

Concept	2021 Q3	2021 Q2	2021
OPERATING ACTIVITIES
Net Income	$1.890M	$990.0K	$5.347M
YoY Change	42.0%	-27.74%	25.96%
Depreciation, Depletion And Amortization	$170.0K	$170.0K	$679.0K
YoY Change	0.59%	0.0%	1.19%
Cash From Operating Activities	$190.0K	$2.170M	$6.867M
YoY Change	-84.14%	1.88%	-0.42%
INVESTING ACTIVITIES
Capital Expenditures	-$40.00K	-$30.00K	$279.0K
YoY Change	-170.18%	-25.0%	76.58%
Acquisitions
YoY Change
Other Investing Activities	-$3.970M	-$22.63M	-$35.76M
YoY Change	-57.68%	1.98%	4.71%
Cash From Investing Activities	-$4.010M	-$22.66M	-$36.04M
YoY Change	-57.49%	1.93%	5.06%
FINANCING ACTIVITIES
Cash Dividend Paid			$909.0K
YoY Change			-3.19%
Common Stock Issuance & Retirement, Net			$0.00
YoY Change			-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-30.00M	49.97M	58.44M
YoY Change	214.56%	7.0%	4487.05%
NET CHANGE
Cash From Operating Activities	190.0K	2.170M	6.867M
Cash From Investing Activities	-4.010M	-22.66M	-36.04M
Cash From Financing Activities	-30.00M	49.97M	58.44M
Net Change In Cash	-33.82M	29.48M	29.27M
YoY Change	90.31%	10.83%	-212.0%
FREE CASH FLOW
Cash From Operating Activities	$190.0K	$2.170M	$6.867M
Capital Expenditures	-$40.00K	-$30.00K	$279.0K
Free Cash Flow	$230.0K	$2.200M	$6.588M
YoY Change	-79.84%	1.38%	-2.23%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2021Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From One To Two Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate	5000000
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	85304000
CY2021	iroq	Esop Shares Earned EsopSharesEarned	379000
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	193000
CY2021	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	909000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2270000
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	82564000
CY2020	iroq	Esop Shares Earned EsopSharesEarned	395000
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	7459000
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	223000
CY2020	us-gaap	Dividends Common Stock Stock DividendsCommonStockStock	939000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3638000
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	82461000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	7883000
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3077000
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	3874000
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-2504000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	191000
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	228000
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	4065000
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-2276000
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.35
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.74
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.37
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.76
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	5884000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7381000
CY2020	us-gaap	Noninterest Expense NoninterestExpense	17086000
CY2021	us-gaap	Noninterest Expense NoninterestExpense	18212000
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1677000
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	1763000
CY2020	iroq	Telephone And Postage TelephoneAndPostage	213000
CY2021	iroq	Telephone And Postage TelephoneAndPostage	191000
CY2020	iroq	Insurance Bond Premiums InsuranceBondPremiums	163000
CY2021	iroq	Insurance Bond Premiums InsuranceBondPremiums	181000
CY2020	iroq	Organizational Dues And Subscriptions OrganizationalDuesAndSubscriptions	49000
CY2021	iroq	Organizational Dues And Subscriptions OrganizationalDuesAndSubscriptions	50000
CY2020	iroq	Audit And Accounting Services AuditAndAccountingServices	136000
CY2021	iroq	Audit And Accounting Services AuditAndAccountingServices	138000
CY2020	iroq	Supervisory Examinations SupervisoryExaminations	154000
CY2021	iroq	Supervisory Examinations SupervisoryExaminations	147000
CY2020	us-gaap	Professional Fees ProfessionalFees	442000
CY2021	us-gaap	Professional Fees ProfessionalFees	491000
CY2020	us-gaap	Advertising Expense AdvertisingExpense	499000
CY2021	us-gaap	Advertising Expense AdvertisingExpense	441000
CY2020	us-gaap	Noninterest Expense Printing And Fulfillment NoninterestExpensePrintingAndFulfillment	128000
CY2021	us-gaap	Noninterest Expense Printing And Fulfillment NoninterestExpensePrintingAndFulfillment	75000
CY2020	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	21000
CY2021	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	178000
CY2020	us-gaap	Equipment Expense EquipmentExpense	1564000
CY2021	us-gaap	Equipment Expense EquipmentExpense	1730000
CY2020	us-gaap	Occupancy Net OccupancyNet	943000
CY2021	us-gaap	Occupancy Net OccupancyNet	900000
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	11070000
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	11897000
CY2020	us-gaap	Noninterest Income NoninterestIncome	4810000
CY2021	us-gaap	Noninterest Income NoninterestIncome	6258000
CY2020	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1102000
CY2021	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1035000
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	273000
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	411000
CY2020	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	801000
CY2021	us-gaap	Gain Loss On Sale Of Loans And Leases GainLossOnSaleOfLoansAndLeases	1573000
CY2020	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	119000
CY2021	us-gaap	Fees And Commissions Mortgage Banking And Servicing FeesAndCommissionsMortgageBankingAndServicing	613000
CY2020	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	267000
CY2021	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	320000
CY2020	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	911000
CY2021	us-gaap	Brokerage Commissions Revenue BrokerageCommissionsRevenue	967000
CY2020	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	630000
CY2021	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	645000
CY2020	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	18160000
CY2021	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	19335000
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	18288000
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	20179000
CY2020	us-gaap	Interest Expense InterestExpense	8694000
CY2021	us-gaap	Interest Expense InterestExpense	4178000
CY2020	iroq	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvances	651000
CY2021	iroq	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvances	409000
CY2020	us-gaap	Interest Expense Deposits InterestExpenseDeposits	7910000
CY2021	us-gaap	Interest Expense Deposits InterestExpenseDeposits	3693000
CY2020	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	26982000
CY2021	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	24357000
CY2020	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	267000
CY2021	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	90000
CY2020	iroq	Federal Home Loan Bank Dividends FederalHomeLoanBankDividends	71000
CY2021	iroq	Federal Home Loan Bank Dividends FederalHomeLoanBankDividends	128000
CY2020	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	75000
CY2021	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	39000
CY2020	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	3652000
CY2021	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	3101000
CY2020	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	22917000
CY2021	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	20999000
CY2020Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	735517000
CY2021Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	797341000
CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1933000
CY2020Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	31207000
CY2021Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	35645000
CY2020Q2	us-gaap	Unearned Esop Shares UnearnedESOPShares	2117000
CY2021Q2	us-gaap	Unearned Esop Shares UnearnedESOPShares	1925000
CY2020Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	49239000
CY2021Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	49619000
CY2020Q2	us-gaap	Common Stock Value CommonStockValue	32000
CY2021Q2	us-gaap	Common Stock Value CommonStockValue	32000
CY2020Q2	us-gaap	Liabilities Liabilities	652953000
CY2021Q2	us-gaap	Liabilities Liabilities	712037000
CY2020Q2	us-gaap	Other Liabilities OtherLiabilities	5653000
CY2021Q2	us-gaap	Other Liabilities OtherLiabilities	5968000
CY2020Q2	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	537000
CY2021Q2	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	199000
CY2020Q2	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Current And Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesCurrentAndNoncurrent	3306000
CY2021Q2	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Current And Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesCurrentAndNoncurrent	3065000
CY2020Q2	us-gaap	Deposits Deposits	601700000
CY2021Q2	us-gaap	Deposits Deposits	667632000
CY2020Q2	iroq	Brokered Certificates Of Deposit BrokeredCertificatesOfDeposit	12339000
CY2021Q2	iroq	Brokered Certificates Of Deposit BrokeredCertificatesOfDeposit	10770000
CY2020Q2	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	269152000
CY2021Q2	us-gaap	Interest Bearing Domestic Deposit Certificates Of Deposits InterestBearingDomesticDepositCertificatesOfDeposits	251198000
CY2020Q2	iroq	Deposits Savings Negotiable Order Of Withdrawal Now And Money Market Deposits DepositsSavingsNegotiableOrderOfWithdrawalNowAndMoneyMarketDeposits	232723000
CY2021Q2	iroq	Deposits Savings Negotiable Order Of Withdrawal Now And Money Market Deposits DepositsSavingsNegotiableOrderOfWithdrawalNowAndMoneyMarketDeposits	308741000
CY2020Q2	us-gaap	Demand Deposit Accounts DemandDepositAccounts	87486000
CY2021Q2	us-gaap	Demand Deposit Accounts DemandDepositAccounts	96923000
CY2020Q2	us-gaap	Assets Assets	735517000
CY2021Q2	us-gaap	Assets Assets	797341000
CY2020Q2	us-gaap	Other Assets OtherAssets	634000
CY2021Q2	us-gaap	Other Assets OtherAssets	898000
CY2020Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	630000
CY2021Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1697000
CY2020Q2	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	9345000
CY2021Q2	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	9339000
CY2020Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	386000
CY2021Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	259000
CY2020Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	10193000
CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	9793000
CY2020Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	1938000
CY2021Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	1950000
CY2020Q2	us-gaap	Cash And Due From Banks CashAndDueFromBanks	31529000
CY2021Q2	us-gaap	Cash And Due From Banks CashAndDueFromBanks	60785000
CY2021	iroq	Accrual Of Interest On Loans Due Discontinued Period AccrualOfInterestOnLoansDueDiscontinuedPeriod	P90D
CY2021Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	186589000
CY2021Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4639000
CY2021Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	1337000
CY2021Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	189891000
CY2020Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	155588000
CY2020Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	7029000
CY2020Q2	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	223000
CY2020Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	162394000
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	6030000
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	6447000
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	4963000
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	5103000
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	7885000
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	7926000
CY2021Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	18878000
CY2021Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	19476000
CY2021Q2	iroq	Temporarily Impaired Debt Securities Percentage Of Investment Securities Portfolio TemporarilyImpairedDebtSecuritiesPercentageOfInvestmentSecuritiesPortfolio	0.45
CY2020Q2	iroq	Temporarily Impaired Debt Securities Percentage Of Investment Securities Portfolio TemporarilyImpairedDebtSecuritiesPercentageOfInvestmentSecuritiesPortfolio	0.16
CY2021Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	80958000
CY2021Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1289000
CY2021Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	4160000
CY2021Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	48000
CY2021Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	85118000
CY2020Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	22223000
CY2020Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	117000
CY2020Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	2351000
CY2020Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	106000
CY2020Q2	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	24574000
CY2021Q2	iroq	Maximum Amount Of One To Four Family Residential Mortgage Loans Can Be Approved By Loan Officer MaximumAmountOfOneToFourFamilyResidentialMortgageLoansCanBeApprovedByLoanOfficer	100000
CY2021Q2	iroq	Maximum Amount Of Other Secured Loans Residential Mortgage Loans Can Be Approved By Loan Officer MaximumAmountOfOtherSecuredLoansResidentialMortgageLoansCanBeApprovedByLoanOfficer	50000
CY2021Q2	iroq	Maximum Amount Of Unsecured Loans Residential Mortgage Loans Can Be Approved By Loan Officer MaximumAmountOfUnsecuredLoansResidentialMortgageLoansCanBeApprovedByLoanOfficer	10000
CY2021Q2	iroq	Maximum Amount Of One To Four Family Residential Mortgage Loans Can Be Approved By Managing Officer MaximumAmountOfOneToFourFamilyResidentialMortgageLoansCanBeApprovedByManagingOfficer	375000
CY2021Q2	iroq	Maximum Amount Of Other Secured Loans Residential Mortgage Loans Can Be Approved By Managing Officer MaximumAmountOfOtherSecuredLoansResidentialMortgageLoansCanBeApprovedByManagingOfficer	375000
CY2021Q2	iroq	Maximum Amount Of Unsecured Loans Residential Mortgage Loans Can Be Approved By Managing Officer MaximumAmountOfUnsecuredLoansResidentialMortgageLoansCanBeApprovedByManagingOfficer	100000
CY2020Q2	iroq	Maximum Aggregate Loan Amount Of One To Four Family Residential Mortgage Loans Commercial Real Estate Loans Multi Family Real Estate Loans And Land Loans Can Be Approved By Loan Committee MaximumAggregateLoanAmountOfOneToFourFamilyResidentialMortgageLoansCommercialRealEstateLoansMultiFamilyRealEstateLoansAndLandLoansCanBeApprovedByLoanCommittee	2000000
CY2020Q2	iroq	Maximum Amount Of Unsecured Loans Residential Mortgage Loans Can Be Approved By Loan Committee MaximumAmountOfUnsecuredLoansResidentialMortgageLoansCanBeApprovedByLoanCommittee	500000
CY2021	iroq	Term Period On Residential Mortgage Loan TermPeriodOnResidentialMortgageLoan	P15Y
CY2021	us-gaap	Allowance For Loan And Lease Losses Period Increase Decrease AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease	-844000
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	513000
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	34000
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	0
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	6599000
CY2021Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	1298000
CY2021Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	519228000
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	6328000
CY2020	us-gaap	Allowance For Loan And Lease Losses Period Increase Decrease AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease	-128000
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	268000
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	46000
CY2021Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	520526000
CY2020Q2	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	515887000
CY2021Q2	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	680000
CY2021Q2	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	519846000
CY2021Q2	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	118000
CY2020Q2	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	2226000
CY2020Q2	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	513661000
CY2020Q2	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	304000
CY2021Q2	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	1298000
CY2021Q2	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	1298000
CY2021Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	0
CY2021	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	1536000
CY2021	iroq	Impaired Financing Receivable Interest Income Loss Accrual Method ImpairedFinancingReceivableInterestIncomeLossAccrualMethod	86000
CY2021	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	73000
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.63
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y4M24D
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	945000
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	153143
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	16.63
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y4M24D
CY2021Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	945000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	5347000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	4245000
CY2021	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	3240376
CY2020	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	3324657
CY2021	us-gaap	Weighted Average Number Of Shares Employee Stock Ownership Plan Shares Not Committed To Be Released WeightedAverageNumberOfSharesEmployeeStockOwnershipPlanSharesNotCommittedToBeReleased	202073
CY2020	us-gaap	Weighted Average Number Of Shares Employee Stock Ownership Plan Shares Not Committed To Be Released WeightedAverageNumberOfSharesEmployeeStockOwnershipPlanSharesNotCommittedToBeReleased	221318
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	3038303
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	3103339
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	40564
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	44693
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	153143
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
CY2020Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.63
CY2020Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	153143
CY2020Q2	us-gaap	Escrow Deposit EscrowDeposit	672000
CY2021Q2	us-gaap	Escrow Deposit EscrowDeposit	747000
CY2020	iroq	Unpaid Principal Balances Of Mortgage Loans Serviced For Others UnpaidPrincipalBalancesOfMortgageLoansServicedForOthers	116696000
CY2021	iroq	Unpaid Principal Balances Of Mortgage Loans Serviced For Others UnpaidPrincipalBalancesOfMortgageLoansServicedForOthers	138119000
CY2020Q2	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	4895000
CY2021Q2	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	5102000
CY2020Q2	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	11338000
CY2021Q2	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	11358000
CY2020Q2	us-gaap	Land Land	1976000
CY2021Q2	us-gaap	Land Land	2028000
CY2020Q2	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	1330000
CY2021Q2	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	1264000
CY2020Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	405000
CY2021Q2	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	34000
CY2020	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	87000
CY2020	iroq	Impaired Financing Receivable Interest Income Loss Accrual Method ImpairedFinancingReceivableInterestIncomeLossAccrualMethod	84000
CY2020	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	1800000
CY2020Q2	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	0
CY2020Q2	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	1660000
CY2020Q2	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	1660000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1639000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2034000
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	35000
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	39000
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	441000
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	540000
CY2020	iroq	Income Tax Reconciliation Cash Surrender Value Life Insurance IncomeTaxReconciliationCashSurrenderValueLifeInsurance	57000
CY2021	iroq	Income Tax Reconciliation Cash Surrender Value Life Insurance IncomeTaxReconciliationCashSurrenderValueLifeInsurance	87000
CY2020	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	16000
CY2021	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	8000
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1236000
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1550000
CY2020	iroq	Securities Sold Under Repurchase Agreements Average Balance SecuritiesSoldUnderRepurchaseAgreementsAverageBalance	3398000
CY2021	iroq	Securities Sold Under Repurchase Agreements Average Balance SecuritiesSoldUnderRepurchaseAgreementsAverageBalance	5421000
CY2020	iroq	Securities Sold Under Repurchase Agreements Maximum Balance SecuritiesSoldUnderRepurchaseAgreementsMaximumBalance	3939000
CY2021	iroq	Securities Sold Under Repurchase Agreements Maximum Balance SecuritiesSoldUnderRepurchaseAgreementsMaximumBalance	7142000
CY2021Q2	iroq	Mortgage Loans Secured For Federal Home Loan Banks Advances MortgageLoansSecuredForFederalHomeLoanBanksAdvances	286596000000
CY2021Q2	us-gaap	Time Deposits TimeDeposits	261968000
CY2021Q2	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	6620000
CY2021Q2	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	42516000
CY2021Q2	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	205243000
CY2020	iroq	Interest Expense Deposit Type Brokered Certificates Of Deposit InterestExpenseDepositTypeBrokeredCertificatesOfDeposit	543000
CY2021	iroq	Interest Expense Deposit Type Brokered Certificates Of Deposit InterestExpenseDepositTypeBrokeredCertificatesOfDeposit	71000
CY2020	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	5962000
CY2021	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	2880000
CY2020	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	1405000
CY2021	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	742000
CY2020Q2	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	276821000
CY2021Q2	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	333266000
CY2020	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	-294000
CY2021	us-gaap	Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Valuation Inputs Or Changes In Assumptions ServicingAssetAtFairValueChangesInFairValueResultingFromChangesInValuationInputsOrChangesInAssumptions	164000
CY2020	us-gaap	Servicing Asset At Fair Value Other Changes In Fair Value ServicingAssetAtFairValueOtherChangesInFairValue	-99000
CY2021	us-gaap	Servicing Asset At Fair Value Other Changes In Fair Value ServicingAssetAtFairValueOtherChangesInFairValue	-299000
CY2020	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	255000
CY2021	us-gaap	Servicing Asset At Fair Value Additions ServicingAssetAtFairValueAdditions	433000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	3078867
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	3148032
CY2021Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	1013000
CY2020Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	715000
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	62735000
CY2021Q2	iroq	Interest Bearing Time Deposits In Banks InterestBearingTimeDepositsInBanks	2250000
CY2021Q2	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	513371000
CY2021Q2	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	4198000
CY2021Q2	us-gaap	Interest Receivable InterestReceivable	1897000
CY2021Q2	us-gaap	Secured Debt Repurchase Agreements SecuredDebtRepurchaseAgreements	6245000
CY2021Q2	us-gaap	Line Of Credit Facility Fair Value Of Amount Outstanding LineOfCreditFacilityFairValueOfAmountOutstanding	3000000
CY2021Q2	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	928000
CY2020Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	33467000
CY2020Q2	iroq	Interest Bearing Time Deposits In Banks InterestBearingTimeDepositsInBanks	3000000
CY2020Q2	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	509817000
CY2020Q2	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	3028000
CY2020Q2	us-gaap	Interest Receivable InterestReceivable	1908000
CY2020Q2	us-gaap	Secured Debt Repurchase Agreements SecuredDebtRepurchaseAgreements	3738000
CY2020Q2	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	519000
CY2021Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	6599000
CY2020Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	6234000
CY2021Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	8695000
CY2020Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	8016000
CY2021Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000
CY2021Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	3240376
CY2020Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000
CY2020Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	3240376
CY2021Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	3240376
CY2020Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	3240376
CY2021	us-gaap	Profit Loss ProfitLoss	5347000
CY2020	us-gaap	Profit Loss ProfitLoss	4245000
CY2021	us-gaap	Depreciation Depreciation	679000
CY2020	us-gaap	Depreciation Depreciation	671000
CY2021	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	844000
CY2020	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	128000
CY2021	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-855000
CY2020	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-304000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-162000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-15000
CY2021	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1573000
CY2020	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	801000
CY2021	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	320000
CY2020	us-gaap	Available For Sale Securities Gross Realized Gain Loss Net AvailableForSaleSecuritiesGrossRealizedGainLossNet	267000
CY2021	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-30000
CY2020	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	-27000
CY2021	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	411000
CY2020	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	273000
CY2021	us-gaap	Payments To Purchase Loans Held For Sale PaymentsToPurchaseLoansHeldForSale	57465000
CY2020	us-gaap	Payments To Purchase Loans Held For Sale PaymentsToPurchaseLoansHeldForSale	40615000
CY2021	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	58660000
CY2020	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	41318000
CY2021	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	379000
CY2020	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	395000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	193000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	223000
CY2021	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-11000
CY2020	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-234000
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	264000
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	219000
CY2021	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-338000
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	76000
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	92000
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	1621000
CY2021	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-907000
CY2021	iroq	Esop Shares Earned Shares ESOPSharesEarnedShares	19245
CY2020	iroq	Esop Shares Earned Shares ESOPSharesEarnedShares	19245
CY2020	iroq	Stock Repurchased During Period Average Cost Per Share StockRepurchasedDuringPeriodAverageCostPerShare	22.08
CY2020	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	337876
CY2020	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-264000
CY2021	us-gaap	Increase Decrease In Postretirement Obligations IncreaseDecreaseInPostretirementObligations	87000
CY2020	us-gaap	Increase Decrease In Postretirement Obligations IncreaseDecreaseInPostretirementObligations	57000
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	315000
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	1748000
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6867000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6896000
CY2021	iroq	Net Change In Interest Bearing Time Deposits NetChangeInInterestBearingTimeDeposits	750000
CY2020	iroq	Net Change In Interest Bearing Time Deposits NetChangeInInterestBearingTimeDeposits	0
CY2021	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	79590000
CY2020	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	52052000
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	12891000
CY2020	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	15712000
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	35164000
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	25619000
CY2021	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	4639000
CY2020	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	22165000
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	279000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	158000
CY2021	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	418000
CY2020	us-gaap	Proceeds From Sale Of Foreclosed Assets ProceedsFromSaleOfForeclosedAssets	595000
CY2021	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	1170000
CY2020	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	1854000
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-36038000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-34303000
CY2021	iroq	Net Increase Decrease In Demand Deposits Money Market Now And Savings Accounts NetIncreaseDecreaseInDemandDepositsMoneyMarketNowAndSavingsAccounts	85455000
CY2020	iroq	Net Increase Decrease In Demand Deposits Money Market Now And Savings Accounts NetIncreaseDecreaseInDemandDepositsMoneyMarketNowAndSavingsAccounts	43471000
CY2021	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-19523000
CY2020	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-48794000
CY2021	us-gaap	Increase Decrease In Advance Payments By Borrowers For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance	409000
CY2020	us-gaap	Increase Decrease In Advance Payments By Borrowers For Taxes And Insurance IncreaseDecreaseInAdvancePaymentsByBorrowersForTaxesAndInsurance	-228000
CY2021	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	77000000
CY2020	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	101500000
CY2021	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	86500000
CY2020	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	91000000
CY2021	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	2507000
CY2020	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	1723000
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	909000
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	939000
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7459000
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	58439000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1274000
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	29268000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-26133000
CY2019Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	59600000
CY2021	us-gaap	Interest Paid Net InterestPaidNet	4516000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	8958000
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2743000
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1145000
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	321000
CY2020	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	230000
CY2019Q2	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	853000
CY2021	iroq	Number Of Full Service Banking Offices NumberOfFullServiceBankingOffices	7
CY2021	iroq	Interest Bearing Deposits Maturity Period InterestBearingDepositsMaturityPeriod	P3Y
CY2021	iroq	Cash And Cash Equivalents Maximum Original Maturity Period CashAndCashEquivalentsMaximumOriginalMaturityPeriod	P3M
CY2021	iroq	Income Tax Examination Minimum Likelihood Of Tax Benefits Being Realized Upon Settlement IncomeTaxExaminationMinimumLikelihoodOfTaxBenefitsBeingRealizedUponSettlement	0.50
CY2021Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Two To Three Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate	10000000
CY2021Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	18488000
CY2020Q2	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	18209000
CY2021Q2	iroq	Debt Securities Greater Than Stated Percentage Of Equity Securities DebtSecuritiesGreaterThanStatedPercentageOfEquitySecurities	0.10
CY2021Q2	us-gaap	Pledged Assets Separately Reported Securities Pledged As Collateral At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedAsCollateralAtFairValue	96429000
CY2020Q2	us-gaap	Pledged Assets Separately Reported Securities Pledged As Collateral At Fair Value PledgedAssetsSeparatelyReportedSecuritiesPledgedAsCollateralAtFairValue	66186000
CY2021	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	327000
CY2020	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	295000
CY2021	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	7000
CY2020	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	28000
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	0
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	6234000
CY2020Q2	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	1660000
CY2020Q2	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	514227000
CY2021	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	0
CY2020Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	4203000
CY2019Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	565000
CY2021Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2020Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2021Q2	us-gaap	Line Of Credit LineOfCredit	3000000
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	76000
CY2021Q2	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	556000
CY2020Q2	us-gaap	Loans And Leases Receivable Deferred Income LoansAndLeasesReceivableDeferredIncome	-164000
CY2021Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due After Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate	0
CY2021Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Four To Five Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate	5000000
CY2021Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due From Three To Four Years Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate	0
CY2021Q2	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	192450
CY2020Q2	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	211695
CY2021Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	5000000
CY2020Q2	us-gaap	Employee Stock Ownership Plan Esop Deferred Shares Fair Value EmployeeStockOwnershipPlanESOPDeferredSharesFairValue	3652000
CY2021Q2	us-gaap	Employee Stock Ownership Plan Esop Deferred Shares Fair Value EmployeeStockOwnershipPlanESOPDeferredSharesFairValue	4388000
CY2020Q2	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	358042
CY2021Q2	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	357084
CY2020Q2	us-gaap	Employee Stock Ownership Plan Esop Number Of Committed To Be Released Shares EmployeeStockOwnershipPlanESOPNumberOfCommittedToBeReleasedShares	19245
CY2021Q2	us-gaap	Employee Stock Ownership Plan Esop Number Of Committed To Be Released Shares EmployeeStockOwnershipPlanESOPNumberOfCommittedToBeReleasedShares	19245
CY2020Q2	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	127102
CY2021Q2	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	145389
CY2020Q2	us-gaap	Line Of Credit Facility Fair Value Of Amount Outstanding LineOfCreditFacilityFairValueOfAmountOutstanding	3000000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	0
CY2020	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1
CY2020	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	61000
CY2021Q2	iroq	Residential Real Estate Properties Foreclosure Proceedings ResidentialRealEstatePropertiesForeclosureProceedings	34000
CY2020Q2	iroq	Residential Real Estate Properties Foreclosure Proceedings ResidentialRealEstatePropertiesForeclosureProceedings	41000
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2196000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1654000
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.276
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.279
CY2021Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	1880000
CY2020Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	1776000
CY2021Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	703000
CY2020Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	677000
CY2021Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	508000
CY2020Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	468000
CY2021Q2	iroq	Deferred Tax Assets Tax Deferred Loan Fees DeferredTaxAssetsTaxDeferredLoanFees	336000
CY2020Q2	iroq	Deferred Tax Assets Tax Deferred Loan Fees DeferredTaxAssetsTaxDeferredLoanFees	291000
CY2021Q2	iroq	Deferred Tax Assets Tax Postretirement Health Plan DeferredTaxAssetsTaxPostretirementHealthPlan	170000
CY2020Q2	iroq	Deferred Tax Assets Tax Postretirement Health Plan DeferredTaxAssetsTaxPostretirementHealthPlan	264000
CY2021Q2	iroq	Deferred Tax Assets Accrued Vacation DeferredTaxAssetsAccruedVacation	61000
CY2020Q2	iroq	Deferred Tax Assets Accrued Vacation DeferredTaxAssetsAccruedVacation	66000
CY2021Q2	iroq	Deferred Tax Assets Tax Deferred Expense Mortgage Partnership Finance Recourse Liability DeferredTaxAssetsTaxDeferredExpenseMortgagePartnershipFinanceRecourseLiability	121000
CY2020Q2	iroq	Deferred Tax Assets Tax Deferred Expense Mortgage Partnership Finance Recourse Liability DeferredTaxAssetsTaxDeferredExpenseMortgagePartnershipFinanceRecourseLiability	97000
CY2021Q2	iroq	Deferred Tax Assets Tax Deferred Revenue Mastercard DeferredTaxAssetsTaxDeferredRevenueMastercard	19000
CY2020Q2	iroq	Deferred Tax Assets Tax Deferred Revenue Mastercard DeferredTaxAssetsTaxDeferredRevenueMastercard	23000
CY2020Q2	iroq	Deferred Tax Assets Restricted Stock DeferredTaxAssetsRestrictedStock	11000
CY2021Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	23000
CY2020Q2	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7000
CY2021Q2	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	687000
CY2020Q2	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	731000
CY2021Q2	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	289000
CY2020Q2	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	204000
CY2021Q2	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	177000
CY2020Q2	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	181000
CY2021Q2	iroq	Deferred Tax Assets Unrealized Gains On Available For Sale Securities Gross DeferredTaxAssetsUnrealizedGainsOnAvailableForSaleSecuritiesGross	-941000
CY2020Q2	iroq	Deferred Tax Assets Unrealized Gains On Available For Sale Securities Gross DeferredTaxAssetsUnrealizedGainsOnAvailableForSaleSecuritiesGross	-1940000
CY2021Q2	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	76000
CY2021Q2	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1697000
CY2020Q2	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	630000
CY2021Q2	iroq	Retained Earnings Excluding Deferred Federal Income Tax Liability RetainedEarningsExcludingDeferredFederalIncomeTaxLiability	2217000
CY2020Q2	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-3306000
CY2021Q2	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	3065000
CY2020Q2	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	3306000
CY2021	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-60000
CY2020	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-25000
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	191000
CY2021Q2	iroq	Amount Deferred Income Tax Liabilities Expected To Reverse Into Taxable Income AmountDeferredIncomeTaxLiabilitiesExpectedToReverseIntoTaxableIncome	466000
CY2021Q2	iroq	Maximum Asset Value Required To Be Maintained Leverage Ratio MaximumAssetValueRequiredToBeMaintainedLeverageRatio	10000000000
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear	154000
CY2020Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	3306000
CY2019Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	2919000
CY2021	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	56000
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	53000
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	75000
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	93000
CY2021	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	268000
CY2020	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-355000
CY2021	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	104000
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	114000
CY2021Q2	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	3065000
CY2021Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets
CY2020Q2	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets
CY2021Q2	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-3065000
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	171000
CY2021	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	104000
CY2020	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	114000
CY2021	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	104000
CY2020	us-gaap	Defined Benefit Plan Benefit Obligation Benefits Paid DefinedBenefitPlanBenefitObligationBenefitsPaid	114000
CY2021	iroq	Benefit Costs BenefitCosts	191000
CY2020	iroq	Benefit Costs BenefitCosts	171000
CY2021Q2	us-gaap	Defined Benefit Plan Expected Amortization Of Gain Loss Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear	-26000
CY2021Q2	us-gaap	Defined Benefit Plan Expected Amortization Of Prior Service Cost Credit Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear	0
CY2021Q2	us-gaap	Defined Benefit Plan Expected Amortization Of Transition Asset Obligation Next Fiscal Year DefinedBenefitPlanExpectedAmortizationOfTransitionAssetObligationNextFiscalYear	0
CY2021Q2	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0265
CY2021	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	4000
CY2021	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	4000
CY2021	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	47000
CY2021	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	51000
CY2023Q2	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.085
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	135000
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	155000
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	172000
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	174000
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent Of Match DefinedContributionPlanEmployerMatchingContributionPercentOfMatch	0.25
CY2021	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.05
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	88000
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	81000
CY2021	iroq	Defined Benefit Plan Retirement Age DefinedBenefitPlanRetirementAge	P72Y
CY2021Q2	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	1800000
CY2020Q2	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	1600000
CY2021Q2	iroq	Commitments Outstanding Amount CommitmentsOutstandingAmount	19137000
CY2020Q2	iroq	Commitments Outstanding Amount CommitmentsOutstandingAmount	16873000
CY2021	us-gaap	Loans And Leases Receivable Commitments Fixed Rates LoansAndLeasesReceivableCommitmentsFixedRates	7594000
CY2020	us-gaap	Loans And Leases Receivable Commitments Fixed Rates LoansAndLeasesReceivableCommitmentsFixedRates	5178000
CY2021Q2	iroq	Weighted Average Interest Rates For Fixedrate Loan Commitments WeightedAverageInterestRatesForFixedrateLoanCommitments	0.0359
CY2020Q2	iroq	Weighted Average Interest Rates For Fixedrate Loan Commitments WeightedAverageInterestRatesForFixedrateLoanCommitments	0.0349
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-06-30
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Trading Symbol TradingSymbol	IROQ
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001514743
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--06-30
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Small Business EntitySmallBusiness	true
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Security12b Title Security12bTitle	Common Stock
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
CY2020Q2	us-gaap	Line Of Credit LineOfCredit	3000000
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	94000
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-123000
CY2021	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	0
CY2020	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	5000000
CY2021	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	0
CY2020	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	2000000
CY2021	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	417000
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family: "times new roman"; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 2%; text-indent: 0px;"><div style="font-family: "times new roman"; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-weight:bold;display:inline;"><div style="font-style:italic;display:inline;;font-style:italic;display:inline;">Use of Estimates </div></div></div></div><div style="font-family: "times new roman"; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt; margin-left: 4%; text-indent: 0px;"><div style="font-family: "times new roman"; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. </div></div><div style="font-family: "times new roman"; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt; margin-left: 4%; text-indent: 0px;"><div style="font-family: "times new roman"; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses and the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, fair value measurements of investment securities, loan servicing rights and income taxes. </div></div><table border="0" style="width:100%; table-layout:fixed;" cellspacing="0" cellpadding="0"><tr><td></td></tr></table>
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	133000
CY2021Q2	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	2265000
CY2021Q2	iroq	Time Deposit Maturities Year Six And Thereafter TimeDepositMaturitiesYearSixAndThereafter	5324000
CY2021Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	54000
CY2020Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	50000
CY2020Q2	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	18000
CY2021Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	3875000
CY2020Q2	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	3748000
CY2021Q2	iroq	Deferred Tax Liability Restricted Stock DeferredTaxLiabilityRestrictedStock	8000
CY2020Q2	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	62000
CY2021Q2	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2178000
CY2020Q2	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3118000
CY2020Q2	iroq	Retained Earnings Excluding Deferred Federal Income Tax Liability RetainedEarningsExcludingDeferredFederalIncomeTaxLiability	2217000
CY2020Q2	iroq	Amount Deferred Income Tax Liabilities Expected To Reverse Into Taxable Income AmountDeferredIncomeTaxLiabilitiesExpectedToReverseIntoTaxableIncome	466000
CY2021Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-532000
CY2020Q2	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	-860000
CY2021Q2	iroq	Mortgage Servicing Rights Fair Value Disclosure MortgageServicingRightsFairValueDisclosure	1013000
CY2020Q2	iroq	Mortgage Servicing Rights Fair Value Disclosure MortgageServicingRightsFairValueDisclosure	715000
CY2020Q2	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0232
CY2021Q2	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.090
CY2022Q2	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.085
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	193000
CY2021Q2	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	972000
CY2021Q2	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.025
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	234000
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-236000
CY2021Q2	us-gaap	Cash Uninsured Amount CashUninsuredAmount	260000
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0
CY2021	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-2276000
CY2021	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	228000
CY2021	iroq	Other Comprehensive Income Loss Net Of Tax Portions Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionsAttributableToParent	234000
CY2020	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	4065000
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	191000
CY2020	iroq	Other Comprehensive Income Loss Net Of Tax Portions Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionsAttributableToParent	-236000
CY2021	dei	Entity Registrant Name EntityRegistrantName	IF Bancorp, Inc.
CY2021Q2	iroq	Foreclosed Assets Measurement Input ForeclosedAssetsMeasurementInput	191000
CY2020Q2	iroq	Foreclosed Assets Measurement Input ForeclosedAssetsMeasurementInput	200000
CY2021Q2	iroq	Commitments To Originate Loans CommitmentsToOriginateLoans	0
CY2020Q2	iroq	Commitments To Originate Loans CommitmentsToOriginateLoans	0
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2020Q4	dei	Entity Public Float EntityPublicFloat	50800894
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	3240376
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0232
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0325
CY2021	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2021Q2	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	25000000
CY2020Q2	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	34500000

Files In Submission

Name	View Source	Status
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$IROQ
IF Bancorp, Inc. Stock $iroq

2021 Q3 Form 10-K Financial Statement

#000119312521273623 Filed on September 15, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IROQ IF Bancorp, Inc. Stock $iroq

2021 Q3 Form 10-K Financial Statement

#000119312521273623 Filed on September 15, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IROQ
IF Bancorp, Inc. Stock $iroq