$KFFB
Kentucky First Federal Bancorp Stock $kffb

$kffb Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-Q Financial Statement

#000121390024014153 Filed on February 14, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2022 Q4
Revenue	$4.173M	$3.927M	$3.131M
YoY Change	30.0%	25.42%
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	$59.00K	$60.00K	$64.00K
YoY Change	-6.35%	-6.25%	28.0%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$2.408M	$2.270M	$683.0K
YoY Change	106.7%	232.36%	52.46%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	-$145.0K	-$455.0K	$487.0K
YoY Change	-173.23%	-193.43%	-9.81%
Income Tax	-$38.00K	-$94.00K	$113.0K
% Of Pretax Income			23.2%
Net Earnings	-$107.0K	-$361.0K	$374.0K
YoY Change	-174.31%	-196.52%	-22.08%
Net Earnings / Revenue	-2.56%	-9.19%	11.95%
Basic Earnings Per Share	-$0.01	-$0.05	$0.04
Diluted Earnings Per Share	-$0.01	-$0.05	$0.04
COMMON SHARES
Basic Shares Outstanding	8.087M shares	8.087M shares	8.155M shares
Diluted Shares Outstanding	8.099M shares	8.099M shares	8.151M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2022 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$15.42M	$14.58M	$7.654M
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	$4.317M	$4.361M	$4.547M
YoY Change	-3.85%	-4.09%	-1.15%
Goodwill	$947.0K	$947.0K	$947.0K
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$369.1M	$366.2M	$335.4M
YoY Change	7.64%	9.2%	-1.24%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$150.0K	$167.0K	$15.00K
YoY Change	212.5%	1013.33%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$150.0K	$167.0K	$333.0K
YoY Change	-70.99%	-49.85%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$1.328M	$1.044M	$688.0K
YoY Change	37.19%	51.74%	-1.71%
Total Long-Term Liabilities	$1.328M	$1.044M	$688.0K
YoY Change	37.19%	51.74%	-1.71%
TOTAL LIABILITIES
Total Short-Term Liabilities	$150.0K	$167.0K	$333.0K
Total Long-Term Liabilities	$1.328M	$1.044M	$688.0K
Total Liabilities	$320.1M	$317.1M	$283.7M
YoY Change	9.7%	11.75%	-1.1%
SHAREHOLDERS EQUITY
Retained Earnings	$18.40M	$18.51M	$20.62M
YoY Change	-9.9%	-10.25%
Common Stock	$86.00K	$86.00K	$86.00K
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$3.969M	$3.969M	$3.616M
YoY Change	1.72%	9.76%
Treasury Stock Shares			456.4K shares
Shareholders Equity	$49.01M	$49.18M	$51.64M
YoY Change
Total Liabilities & Shareholders Equity	$369.1M	$366.2M	$335.4M
YoY Change	7.64%	9.2%	-1.24%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2022 Q4
OPERATING ACTIVITIES
Net Income	-$107.0K	-$361.0K	$374.0K
YoY Change	-174.31%	-196.52%	-22.08%
Depreciation, Depletion And Amortization	$59.00K	$60.00K	$64.00K
YoY Change	-6.35%	-6.25%	28.0%
Cash From Operating Activities	-$176.0K	-$522.0K	$367.0K
YoY Change	-188.44%	-242.23%	-152.43%
INVESTING ACTIVITIES
Capital Expenditures	$15.00K	$24.00K	$47.00K
YoY Change	150.0%	-48.94%	-256.67%
Acquisitions
YoY Change
Other Investing Activities	-$2.096M	-$7.032M	-$5.593M
YoY Change	-70.25%	25.73%	-132.16%
Cash From Investing Activities	-$2.111M	-$7.056M	-$5.640M
YoY Change	-70.07%	25.11%	-132.49%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	3.125M	9.577M	4.292M
YoY Change	-57.1%	123.14%	58.96%
NET CHANGE
Cash From Operating Activities	-176.0K	-522.0K	367.0K
Cash From Investing Activities	-2.111M	-7.056M	-5.640M
Cash From Financing Activities	3.125M	9.577M	4.292M
Net Change In Cash	838.0K	1.999M	-981.0K
YoY Change	94.43%	-303.77%	-105.07%
FREE CASH FLOW
Cash From Operating Activities	-$176.0K	-$522.0K	$367.0K
Capital Expenditures	$15.00K	$24.00K	$47.00K
Free Cash Flow	-$191.0K	-$546.0K	$320.0K
YoY Change	-198.96%	-270.63%	-147.76%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue		usd
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued		shares
CY2023Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding		shares
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	0-51176
	dei	Entity Registrant Name EntityRegistrantName	KENTUCKY FIRST FEDERAL BANCORP
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	X1
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	61-1484858
	dei	Entity Address Address Line1 EntityAddressAddressLine1	655 Main Street
	dei	Entity Address City Or Town EntityAddressCityOrTown	Hazard
	dei	Entity Address State Or Province EntityAddressStateOrProvince	KY
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	41702
	dei	City Area Code CityAreaCode	(502)
	dei	Local Phone Number LocalPhoneNumber	223-1638
	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value per share
	dei	Trading Symbol TradingSymbol	KFFB
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	8086715	shares
CY2023Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	1992000	usd
CY2023Q2	us-gaap	Cash And Due From Banks CashAndDueFromBanks	2284000	usd
CY2023Q4	us-gaap	Federal Funds Sold And Securities Purchased Under Agreements To Resell FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	684000	usd
CY2023Q2	us-gaap	Federal Funds Sold And Securities Purchased Under Agreements To Resell FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	665000	usd
CY2023Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	11908000	usd
CY2023Q2	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	5218000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14584000	usd
CY2023Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	8167000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	10918000	usd
CY2023Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	12080000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	223000	usd
CY2023Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	259000	usd
CY2023Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	234000	usd
CY2023Q2	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	274000	usd
CY2023Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	270000	usd
CY2023Q4	us-gaap	Real Estate Investments RealEstateInvestments	10000	usd
CY2023Q2	us-gaap	Real Estate Investments RealEstateInvestments	70000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4361000	usd
CY2023Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4435000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	4243000	usd
CY2023Q2	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	4623000	usd
CY2023Q4	us-gaap	Interest Receivable InterestReceivable	1078000	usd
CY2023Q2	us-gaap	Interest Receivable InterestReceivable	902000	usd
CY2023Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	2873000	usd
CY2023Q2	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	2831000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	947000	usd
CY2023Q2	us-gaap	Goodwill Goodwill	947000	usd
CY2023Q4	us-gaap	Prepaid Taxes PrepaidTaxes	241000	usd
CY2023Q2	us-gaap	Prepaid Taxes PrepaidTaxes	144000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Noncurrent PrepaidExpenseAndOtherAssetsNoncurrent	840000	usd
CY2023Q2	us-gaap	Prepaid Expense And Other Assets Noncurrent PrepaidExpenseAndOtherAssetsNoncurrent	742000	usd
CY2023Q4	us-gaap	Assets Assets	366247000	usd
CY2023Q2	us-gaap	Assets Assets	349022000	usd
CY2023Q4	us-gaap	Deposits Deposits	244629000	usd
CY2023Q2	us-gaap	Deposits Deposits	226309000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	71008000	usd
CY2023Q2	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	70087000	usd
CY2023Q4	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	334000	usd
CY2023Q2	us-gaap	Advance Payments By Borrowers For Taxes And Insurance AdvancePaymentsByBorrowersForTaxesAndInsurance	793000	usd
CY2023Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	167000	usd
CY2023Q2	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	70000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	216000	usd
CY2023Q2	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	513000	usd
CY2023Q4	us-gaap	Other Liabilities OtherLiabilities	710000	usd
CY2023Q2	us-gaap	Other Liabilities OtherLiabilities	539000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	317064000	usd
CY2023Q2	us-gaap	Liabilities Liabilities	298311000	usd
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000	shares
CY2023Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000	shares
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2023Q2	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2023Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	8596064	shares
CY2023Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	8596064	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	86000	usd
CY2023Q2	us-gaap	Common Stock Value CommonStockValue	86000	usd
CY2023Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	34891000	usd
CY2023Q2	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	34891000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	18509000	usd
CY2023Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	20130000	usd
CY2023Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	509349	shares
CY2023Q2	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	509349	shares
CY2023Q4	us-gaap	Treasury Stock Value TreasuryStockValue	3969000	usd
CY2023Q2	us-gaap	Treasury Stock Value TreasuryStockValue	3969000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-334000	usd
CY2023Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-427000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	49183000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	50711000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	366247000	usd
CY2023Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	349022000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	7087000	usd
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	5539000	usd
CY2023Q4	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	3628000	usd
CY2022Q4	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	2895000	usd
	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	191000	usd
	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	229000	usd
CY2023Q4	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	92000	usd
CY2022Q4	us-gaap	Interest Income Securities Mortgage Backed InterestIncomeSecuritiesMortgageBacked	115000	usd
	us-gaap	Interest Income Other Domestic Deposits InterestIncomeOtherDomesticDeposits	383000	usd
	us-gaap	Interest Income Other Domestic Deposits InterestIncomeOtherDomesticDeposits	248000	usd
CY2023Q4	us-gaap	Interest Income Other Domestic Deposits InterestIncomeOtherDomesticDeposits	207000	usd
CY2022Q4	us-gaap	Interest Income Other Domestic Deposits InterestIncomeOtherDomesticDeposits	121000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	7661000	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	6016000	usd
CY2023Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	3927000	usd
CY2022Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	3131000	usd
	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	16000	usd
	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	20000	usd
CY2023Q4	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	8000	usd
CY2022Q4	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	9000	usd
	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	112000	usd
	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	173000	usd
CY2023Q4	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	55000	usd
CY2022Q4	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	71000	usd
	kffb	Interest Expense Certificates Of Deposit InterestExpenseCertificatesOfDeposit	2595000	usd
	kffb	Interest Expense Certificates Of Deposit InterestExpenseCertificatesOfDeposit	461000	usd
CY2023Q4	kffb	Interest Expense Certificates Of Deposit InterestExpenseCertificatesOfDeposit	1445000	usd
CY2022Q4	kffb	Interest Expense Certificates Of Deposit InterestExpenseCertificatesOfDeposit	224000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	2723000	usd
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	654000	usd
CY2023Q4	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1508000	usd
CY2022Q4	us-gaap	Interest Expense Deposits InterestExpenseDeposits	304000	usd
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	1610000	usd
	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	482000	usd
CY2023Q4	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	762000	usd
CY2022Q4	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	379000	usd
	us-gaap	Interest Expense InterestExpense	4333000	usd
	us-gaap	Interest Expense InterestExpense	1136000	usd
CY2023Q4	us-gaap	Interest Expense InterestExpense	2270000	usd
CY2022Q4	us-gaap	Interest Expense InterestExpense	683000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	3328000	usd
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	4880000	usd
CY2023Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	1657000	usd
CY2022Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	2448000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	15000	usd
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	113000	usd
CY2023Q4	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	9000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	3313000	usd
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	4767000	usd
CY2023Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	1648000	usd
CY2022Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	2448000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	42000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	41000	usd
CY2023Q4	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	21000	usd
CY2022Q4	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	20000	usd
	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	6000	usd
	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	6000	usd
CY2023Q4	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	7000	usd
CY2022Q4	us-gaap	Gain Loss On Sales Of Consumer Loans GainLossOnSalesOfConsumerLoans	-1000	usd
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	4000	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	10000	usd
	us-gaap	Noninterest Income Other NoninterestIncomeOther	69000	usd
	us-gaap	Noninterest Income Other NoninterestIncomeOther	110000	usd
CY2023Q4	us-gaap	Noninterest Income Other NoninterestIncomeOther	18000	usd
CY2022Q4	us-gaap	Noninterest Income Other NoninterestIncomeOther	50000	usd
	us-gaap	Noninterest Income NoninterestIncome	121000	usd
	us-gaap	Noninterest Income NoninterestIncome	167000	usd
CY2023Q4	us-gaap	Noninterest Income NoninterestIncome	46000	usd
CY2022Q4	us-gaap	Noninterest Income NoninterestIncome	69000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	2515000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	2454000	usd
CY2023Q4	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1273000	usd
CY2022Q4	us-gaap	Labor And Related Expense LaborAndRelatedExpense	1260000	usd
	us-gaap	Communication Communication	280000	usd
	us-gaap	Communication Communication	230000	usd
CY2023Q4	us-gaap	Communication Communication	147000	usd
CY2022Q4	us-gaap	Communication Communication	124000	usd
	us-gaap	Occupancy Net OccupancyNet	289000	usd
	us-gaap	Occupancy Net OccupancyNet	313000	usd
CY2023Q4	us-gaap	Occupancy Net OccupancyNet	147000	usd
CY2022Q4	us-gaap	Occupancy Net OccupancyNet	159000	usd
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	107000	usd
	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	41000	usd
CY2023Q4	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	72000	usd
CY2022Q4	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	20000	usd
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	57000	usd
	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	61000	usd
CY2023Q4	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	19000	usd
CY2022Q4	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	27000	usd
	us-gaap	Advertising Expense AdvertisingExpense	88000	usd
	us-gaap	Advertising Expense AdvertisingExpense	79000	usd
CY2023Q4	us-gaap	Advertising Expense AdvertisingExpense	49000	usd
CY2022Q4	us-gaap	Advertising Expense AdvertisingExpense	47000	usd
	kffb	Outside Service Fees OutsideServiceFees	213000	usd
	kffb	Outside Service Fees OutsideServiceFees	104000	usd
CY2023Q4	kffb	Outside Service Fees OutsideServiceFees	135000	usd
CY2022Q4	kffb	Outside Service Fees OutsideServiceFees	46000	usd
	us-gaap	Professional Fees ProfessionalFees	172000	usd
	us-gaap	Professional Fees ProfessionalFees	176000	usd
CY2023Q4	us-gaap	Professional Fees ProfessionalFees	107000	usd
CY2022Q4	us-gaap	Professional Fees ProfessionalFees	95000	usd
	kffb	Regulatory Assessment RegulatoryAssessment	32000	usd
	kffb	Regulatory Assessment RegulatoryAssessment	50000	usd
CY2023Q4	kffb	Regulatory Assessment RegulatoryAssessment	15000	usd
CY2022Q4	kffb	Regulatory Assessment RegulatoryAssessment	25000	usd
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	43000	usd
	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	45000	usd
CY2023Q4	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	20000	usd
CY2022Q4	us-gaap	Foreclosed Real Estate Expense ForeclosedRealEstateExpense	21000	usd
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	53000	usd
	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	78000	usd
CY2023Q4	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	20000	usd
CY2022Q4	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	41000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	283000	usd
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	327000	usd
CY2023Q4	us-gaap	Other Noninterest Expense OtherNoninterestExpense	145000	usd
CY2022Q4	us-gaap	Other Noninterest Expense OtherNoninterestExpense	165000	usd
	us-gaap	Noninterest Expense NoninterestExpense	4132000	usd
	us-gaap	Noninterest Expense NoninterestExpense	3958000	usd
CY2023Q4	us-gaap	Noninterest Expense NoninterestExpense	2149000	usd
CY2022Q4	us-gaap	Noninterest Expense NoninterestExpense	2030000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-698000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	976000	usd
CY2023Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-455000	usd
CY2022Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	487000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-162000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	229000	usd
CY2023Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-94000	usd
CY2022Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	113000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-536000	usd
	us-gaap	Net Income Loss NetIncomeLoss	747000	usd
CY2023Q4	us-gaap	Net Income Loss NetIncomeLoss	-361000	usd
CY2022Q4	us-gaap	Net Income Loss NetIncomeLoss	374000	usd
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.07
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.09
CY2023Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.05
CY2022Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.04
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.1
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2
CY2023Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.1
CY2022Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.1
	us-gaap	Net Income Loss NetIncomeLoss	-536000	usd
	us-gaap	Net Income Loss NetIncomeLoss	747000	usd
CY2023Q4	us-gaap	Net Income Loss NetIncomeLoss	-361000	usd
CY2022Q4	us-gaap	Net Income Loss NetIncomeLoss	374000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	31000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-114000	usd
CY2023Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	77000	usd
CY2022Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	29000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	93000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-343000	usd
CY2023Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	231000	usd
CY2022Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	87000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-443000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	404000	usd
CY2023Q4	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-130000	usd
CY2022Q4	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	461000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	50711000	usd
CY2022Q2	us-gaap	Stockholders Equity StockholdersEquity	52025000	usd
	us-gaap	Net Income Loss NetIncomeLoss	747000	usd
	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	5000	usd
	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	-108000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-343000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	685000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	51641000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	49649000	usd
CY2023Q4	us-gaap	Net Income Loss NetIncomeLoss	-361000	usd
CY2023Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	231000	usd
CY2023Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.1
CY2023Q4	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	336000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	49183000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	51629000	usd
CY2022Q4	us-gaap	Net Income Loss NetIncomeLoss	374000	usd
CY2022Q4	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	2000	usd
CY2022Q4	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	-108000	usd
CY2022Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	87000	usd
CY2022Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.1
CY2022Q4	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	343000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	51641000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-536000	usd
	us-gaap	Net Income Loss NetIncomeLoss	747000	usd
	us-gaap	Depreciation Depreciation	119000	usd
	us-gaap	Depreciation Depreciation	132000	usd
	kffb	Accretion Of Purchased Loan Credit Discount AccretionOfPurchasedLoanCreditDiscount	11000	usd
	kffb	Accretion Of Purchased Loan Credit Discount AccretionOfPurchasedLoanCreditDiscount	23000	usd
	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	-1000	usd
	us-gaap	Amortization Of Deferred Loan Origination Fees Net AmortizationOfDeferredLoanOriginationFeesNet	3000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	11000	usd
	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	11000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	6000	usd
	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	6000	usd
	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	4000	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	10000	usd
	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	5000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	42000	usd
	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	41000	usd
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	15000	usd
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	113000	usd
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	782000	usd
	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	157000	usd
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	518000	usd
	us-gaap	Proceeds From Sale Of Mortgage Loans Held For Sale ProceedsFromSaleOfMortgageLoansHeldForSale	315000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-192000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	176000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	191000	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	195000	usd
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	51000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	97000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	3000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	113000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-47000	usd
	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	28000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-1092000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	803000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	4974000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	37000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	33000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1301000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1468000	usd
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	532000	usd
	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	1549000	usd
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	152000	usd
	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	44000	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	12338000	usd
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	24468000	usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	180000	usd
	kffb	Proceeds From Sale Of Real Estate Owned ProceedsFromSaleOfRealEstateOwned	64000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	45000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	116000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-10601000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-26372000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	18320000	usd
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	-30474000	usd
	kffb	Payments By Borrowers For Taxes And Insurance Net PaymentsByBorrowersForTaxesAndInsuranceNet	-459000	usd
	kffb	Payments By Borrowers For Taxes And Insurance Net PaymentsByBorrowersForTaxesAndInsuranceNet	-495000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	48800000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	94800000	usd
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	47879000	usd
	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	55638000	usd
	kffb	Treasury Stock Purchased TreasuryStockPurchased	108000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	671000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	685000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	18111000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	7400000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	6418000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-18169000	usd
CY2023Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	8167000	usd
CY2022Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	25823000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	14584000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7654000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	125000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	200000	usd
	kffb	Interest On Deposits And Borrowings InterestOnDepositsAndBorrowings	4236000	usd
	kffb	Interest On Deposits And Borrowings InterestOnDepositsAndBorrowings	1133000	usd
	us-gaap	Use Of Estimates UseOfEstimates	<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b><span style="text-decoration:underline">Critical Accounting Policies and Estimates</span></b></span></p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Investments – </b>Management determines the classification of debt securities at purchase as held-to-maturity, trading, or available-for-sale. Held-to-maturity securities are those we have both the intent and ability to hold to maturity and are reported at amortized cost. Securities that are not considered held-to-maturity are considered either trading or available-for-sale securities in accordance with Financial Accounting Standards Board Accounting Standards Codification (“ASC”) 320, <i>Investments – Debt Securities, </i>and are reported at fair value in the statement of financial position. We have no trading securities. The adjustment to fair value for available-for-sale securities for unrealized gains and losses is included as a separate component of shareholders’ equity, net of tax.</span></p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Loans – </b>Loans for which we have the ability and intent to hold until maturity and/or payoff are reported at the carrying value of the unpaid principal reduced by unearned interest, an allowance for credit losses and unamortized deferred fees and costs and premiums. Interest income is accrued on a level yield basis. In circumstances where management believes that collection of interest income is uncollectible on specific loans, after considering economic and business conditions, collateral value and collection efforts, interest accrual is discontinued. Interest income may be recognized on the cash basis when received unless a determination has been made by management to apply all of the payment against principal.</span></p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"> </span></p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Allowance for Credit Losses – </b>We account for the allowance for credit losses under ASC 326, Measurement of Credit Losses on Financial Instruments, which is commonly known as CECL. We measure expected credit losses of financial assets on a weighted average remaining maturity (WARM) basis.</span></p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">We maintain an allowance for credit losses (“ACL”) at a level that is appropriate to cover estimated credit losses on individually evaluated loans, as well as estimated credit losses inherent in the estimated life of the loan portfolio. Credit losses are charged to and recoveries are credited to the ACL.</span></p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Loans with similar risk characteristics are evaluated on a collective basis within homogeneous loan pools under ASC 326. Our homogeneous loan pools are primarily determined by loan purpose and collateral type. Pools include residential real estate (composed of one-to four-family, multi-family, and construction), land, farm, nonresidential real estate, commercial and industrial, and consumer loans (composed of Loans on deposit, home equity, automobile, and unsecured). Credits that are nonaccrual status are subject to individual evaluation.</span></p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">Historical loss rates for loans are adjusted for significant factors that, in management’s judgment, reflect the impact of any current conditions on loss recognition. Qualitative factors used to derive our ACL include delinquency trends, current economic conditions and trends, strength of supervision and administration of the loan portfolio, levels of underperforming loans, trends in loan losses and underwriting exceptions. Reasonable and supportable economic forecasts that may offset collectibility are also included as factors in our ACL model. Management continually reevaluates the other subjective factors included in its ACL analysis.</span></p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>Income Taxes – </b>Income tax expense is based on the taxes due on the consolidated tax return plus deferred taxes on the expected future tax benefits and consequences of temporary differences between carrying amounts and tax bases of assets and liabilities, using enacted tax rates.</span></p>
CY2023	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	497000	usd
CY2023Q4	us-gaap	Allowance For Notes And Loans Receivable Current AllowanceForNotesAndLoansReceivableCurrent	54000	usd
	kffb	Stock Issue During Period Value Cumulative Impact Of Adoption Of Asc StockIssueDuringPeriodValueCumulativeImpactOfAdoptionOfASC	414000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	137000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-536000	usd
	us-gaap	Net Income Loss NetIncomeLoss	747000	usd
CY2023Q4	us-gaap	Net Income Loss NetIncomeLoss	-361000	usd
CY2022Q4	us-gaap	Net Income Loss NetIncomeLoss	374000	usd
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.07
CY2023Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.05
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8098715	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8152477	shares
CY2023Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8098715	shares
CY2022Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8150718	shares
CY2023Q4	us-gaap	Deposit Liabilities Collateral Issued Financial Instruments DepositLiabilitiesCollateralIssuedFinancialInstruments	0	usd
CY2023Q2	us-gaap	Deposit Liabilities Collateral Issued Financial Instruments DepositLiabilitiesCollateralIssuedFinancialInstruments	5900000	usd
CY2023Q2	kffb	Overnight Deposits OvernightDeposits	0	usd
CY2023Q4	kffb	Overnight Deposits OvernightDeposits	1500000	usd
CY2023Q4	kffb	Debt Securities Unrealized Loss Position Percentage DebtSecuritiesUnrealizedLossPositionPercentage	0.999	pure
CY2023Q2	kffb	Debt Securities Unrealized Loss Position Percentage DebtSecuritiesUnrealizedLossPositionPercentage	1	pure
CY2023Q4	us-gaap	Accounts Receivable Gross Noncurrent AccountsReceivableGrossNoncurrent	327780000	usd
CY2023Q2	us-gaap	Accounts Receivable Gross Noncurrent AccountsReceivableGrossNoncurrent	315441000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable Noncurrent AllowanceForDoubtfulAccountsReceivableNoncurrent	2132000	usd
CY2023Q2	us-gaap	Allowance For Doubtful Accounts Receivable Noncurrent AllowanceForDoubtfulAccountsReceivableNoncurrent	1634000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Noncurrent AccountsReceivableNetNoncurrent	325648000	usd
CY2023Q2	us-gaap	Accounts Receivable Net Noncurrent AccountsReceivableNetNoncurrent	313807000	usd
CY2023Q4	us-gaap	Deferred Offering Costs DeferredOfferingCosts	314000	usd
CY2023Q2	us-gaap	Deferred Offering Costs DeferredOfferingCosts	330000	usd
CY2023Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	50000	usd
	kffb	Private Mortgage Insurance PrivateMortgageInsurance	0.97	pure
	kffb	Borrow Up Percentage BorrowUpPercentage	0.90	pure
CY2023Q4	kffb	Loan To Value Ration LoanToValueRation	0.80	pure
CY2023Q4	us-gaap	Reporting Unit Percentage Of Fair Value In Excess Of Carrying Amount ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount	0.80	pure
CY2023Q4	us-gaap	Loans Held For Sale Term LoansHeldForSaleTerm	P25Y
	kffb	Loans Secured Percentage LoansSecuredPercentage	0.90	pure
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	15000	usd
	kffb	Allowancefor Credit Loss Loans Charged Off AllowanceforCreditLossLoansChargedOff	9000	usd
	kffb	Credit Losses For Unfunded Liabilities CreditLossesForUnfundedLiabilities	-5000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	2132000	usd
	kffb	Provision For Credit Losses On Unfunded Commitments ProvisionForCreditLossesOnUnfundedCommitments	5000	usd
CY2023Q4	kffb	Allowance For Credit Losses On Unfunded Commitments AllowanceForCreditLossesOnUnfundedCommitments	58000	usd
CY2022Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1529000	usd
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	113000	usd
	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	13000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	1655000	usd
CY2023Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2126000	usd
CY2023Q4	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	6000	usd
CY2023Q4	kffb	Credit Losses For Unfunded Liabilities CreditLossesForUnfundedLiabilities	-3000	usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	2132000	usd
CY2022Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1642000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	13000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	1655000	usd
	kffb	Impaired Financing Receivables With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivablesWithNoRelatedAllowanceInterestIncomeCashBasisMethod	136000	usd
	kffb	Impaired Financing Receivables With No Related Allowance Average Recorded Investment ImpairedFinancingReceivablesWithNoRelatedAllowanceAverageRecordedInvestment	5140000	usd
	kffb	Impaired Financing Receivables With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivablesWithNoRelatedAllowanceInterestIncomeAccrualMethod	102000	usd
	kffb	Impaired Financing Receivables With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivablesWithNoRelatedAllowanceInterestIncomeCashBasisMethod	102000	usd
	kffb	Impaired Financing Receivables With No Related Allowance Average Recorded Investment ImpairedFinancingReceivablesWithNoRelatedAllowanceAverageRecordedInvestment	5562000	usd
	kffb	Impaired Financing Receivables With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivablesWithNoRelatedAllowanceInterestIncomeAccrualMethod	136000	usd
	kffb	Impaired Financing Receivables With Related Allowance Average Recorded Investment ImpairedFinancingReceivablesWithRelatedAllowanceAverageRecordedInvestment	5140000	usd
	kffb	Impaired Financing Receivables With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivablesWithRelatedAllowanceInterestIncomeAccrualMethod	102000	usd
	kffb	Impaired Financing Receivables With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivablesWithRelatedAllowanceInterestIncomeCashBasisMethod	102000	usd
	kffb	Impaired Financing Receivables With Related Allowance Average Recorded Investment ImpairedFinancingReceivablesWithRelatedAllowanceAverageRecordedInvestment	5562000	usd
	kffb	Impaired Financing Receivables With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivablesWithRelatedAllowanceInterestIncomeAccrualMethod	136000	usd
	kffb	Impaired Financing Receivables With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivablesWithRelatedAllowanceInterestIncomeCashBasisMethod	136000	usd
CY2023Q4	kffb	Impaired Financing Receivables With No Related Allowance Average Recorded Investment ImpairedFinancingReceivablesWithNoRelatedAllowanceAverageRecordedInvestment	5262000	usd
CY2023Q4	kffb	Impaired Financing Receivables With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivablesWithNoRelatedAllowanceInterestIncomeAccrualMethod	70000	usd
CY2023Q4	kffb	Impaired Financing Receivables With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivablesWithNoRelatedAllowanceInterestIncomeCashBasisMethod	70000	usd
CY2022Q4	kffb	Impaired Financing Receivables With No Related Allowance Average Recorded Investment ImpairedFinancingReceivablesWithNoRelatedAllowanceAverageRecordedInvestment	5590000	usd
CY2022Q4	kffb	Impaired Financing Receivables With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivablesWithNoRelatedAllowanceInterestIncomeAccrualMethod	101000	usd
CY2022Q4	kffb	Impaired Financing Receivables With No Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivablesWithNoRelatedAllowanceInterestIncomeCashBasisMethod	101000	usd
CY2023Q4	kffb	Impaired Financing Receivables With Related Allowance Average Recorded Investment ImpairedFinancingReceivablesWithRelatedAllowanceAverageRecordedInvestment	5262000	usd
CY2023Q4	kffb	Impaired Financing Receivables With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivablesWithRelatedAllowanceInterestIncomeAccrualMethod	70000	usd
CY2023Q4	kffb	Impaired Financing Receivables With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivablesWithRelatedAllowanceInterestIncomeCashBasisMethod	70000	usd
CY2022Q4	kffb	Impaired Financing Receivables With Related Allowance Average Recorded Investment ImpairedFinancingReceivablesWithRelatedAllowanceAverageRecordedInvestment	5590000	usd
CY2022Q4	kffb	Impaired Financing Receivables With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivablesWithRelatedAllowanceInterestIncomeAccrualMethod	101000	usd
CY2022Q4	kffb	Impaired Financing Receivables With Related Allowance Interest Income Cash Basis Method ImpairedFinancingReceivablesWithRelatedAllowanceInterestIncomeCashBasisMethod	101000	usd
CY2023Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	1200000	usd
CY2023Q2	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	766000	usd
CY2023Q2	us-gaap	Troubled Debt Restructuring Debtor Subsequent Periods Contingent Payments Amount TroubledDebtRestructuringDebtorSubsequentPeriodsContingentPaymentsAmount	1400000	usd
CY2023Q4	kffb	Financing Receivables Recorded Investment Past Due FinancingReceivablesRecordedInvestmentPastDue	6010000	usd
CY2023Q4	kffb	Loans And Leases Receivable Gross Carrying Amount1 LoansAndLeasesReceivableGrossCarryingAmount1	327780000	usd
CY2023Q2	kffb	Financing Receivables Recorded Investment Past Due FinancingReceivablesRecordedInvestmentPastDue	6071000	usd
CY2023Q2	kffb	Financing Receivables Recorded Investment Current FinancingReceivablesRecordedInvestmentCurrent	315441000	usd
CY2023Q4	kffb	Financial Receivable Pass FinancialReceivablePass	319230000	usd
CY2023Q4	kffb	Financial Receivables Special Mention FinancialReceivablesSpecialMention	840000	usd
CY2023Q4	kffb	Financial Receivables Substandard FinancialReceivablesSubstandard	7710000	usd
CY2023Q2	kffb	Financial Receivable Pass FinancialReceivablePass	308095000	usd
CY2023Q2	kffb	Financial Receivables Special Mention FinancialReceivablesSpecialMention	854000	usd
CY2023Q2	kffb	Financial Receivables Substandard FinancialReceivablesSubstandard	6492000	usd
CY2023Q4	us-gaap	Financing Receivable Unamortized Purchase Premium Discount FinancingReceivableUnamortizedPurchasePremiumDiscount	88000	usd
CY2023Q2	us-gaap	Financing Receivable Unamortized Purchase Premium Discount FinancingReceivableUnamortizedPurchasePremiumDiscount	88000	usd
CY2023Q2	kffb	Certain Loan Acquired In Transfer Accretable Yield CertainLoanAcquiredInTransferAccretableYield	294000	usd
CY2022Q2	kffb	Certain Loan Acquired In Transfer Accretable Yield CertainLoanAcquiredInTransferAccretableYield	339000	usd
	kffb	Certain Loans Acquired In Transfer Not Accounted For As Debt Securitie Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritieAccretableYieldAccretion	-20000	usd
CY2023	kffb	Certain Loans Acquired In Transfer Not Accounted For As Debt Securitie Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritieAccretableYieldAccretion	-45000	usd
CY2023Q4	kffb	Certain Loan Acquired In Transfer Accretable Yield CertainLoanAcquiredInTransferAccretableYield	274000	usd
CY2023Q2	kffb	Certain Loan Acquired In Transfer Accretable Yield CertainLoanAcquiredInTransferAccretableYield	294000	usd
CY2023Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-427000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-565000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	93000	usd
CY2023Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	231000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-334000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-334000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	124000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-457000	usd
CY2023Q4	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	308000	usd
CY2022Q4	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	116000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	31000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-114000	usd
CY2023Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	77000	usd
CY2022Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	29000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	93000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-343000	usd
CY2023Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	231000	usd
CY2022Q4	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	87000	usd
CY2023Q2	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount		usd
CY2023Q4	us-gaap	Accrued Income Taxes AccruedIncomeTaxes		usd
CY2023Q2	us-gaap	Accrued Income Taxes AccruedIncomeTaxes		usd
CY2023Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q2	us-gaap	Preferred Stock Value PreferredStockValue		usd
CY2023Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued		shares
CY2023Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding		shares
CY2023Q4	us-gaap	Unearned Esop Shares UnearnedESOPShares		usd
CY2023Q2	us-gaap	Unearned Esop Shares UnearnedESOPShares		usd
CY2022Q4	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate		usd
CY2022Q4	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment		usd
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.09
CY2023Q4	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense		usd
CY2023Q4	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued		usd
	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate		usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment		usd
	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense		usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit		usd
	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable		usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt		usd
	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables		usd
	us-gaap	Payments To Acquire Finance Receivables PaymentsToAcquireFinanceReceivables		usd
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment		usd
	kffb	Proceeds From Sale Of Real Estate Owned ProceedsFromSaleOfRealEstateOwned		usd
	kffb	Treasury Stock Purchased TreasuryStockPurchased		usd
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.09
CY2022Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.04
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8098715	shares
CY2023Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8098715	shares
CY2022Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8150718	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8152477	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber		shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber		shares
	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery		usd
	kffb	Allowancefor Credit Loss Loans Charged Off AllowanceforCreditLossLoansChargedOff		usd
CY2023Q4	kffb	Allowancefor Credit Loss Loans Charged Off AllowanceforCreditLossLoansChargedOff		usd
CY2023Q4	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery		usd
CY2022Q4	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses		usd
CY2022Q4	kffb	Allowancefor Credit Loss Loans Charged Off AllowanceforCreditLossLoansChargedOff		usd
CY2023Q4	kffb	Financial Receivables Doubtfuls FinancialReceivablesDoubtfuls		usd
CY2023Q2	kffb	Financial Receivables Doubtfuls FinancialReceivablesDoubtfuls		usd
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--06-30
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
	dei	Entity Central Index Key EntityCentralIndexKey	0001297341

Files In Submission

Name	View Source	Status
0001213900-24-014153-index-headers.html	Edgar Link	pending
0001213900-24-014153-index.html	Edgar Link	pending
0001213900-24-014153.txt	Edgar Link	pending
0001213900-24-014153-xbrl.zip	Edgar Link	pending
f10q1223ex31-1_kentucky.htm	Edgar Link	pending
f10q1223ex31-2_kentucky.htm	Edgar Link	pending
f10q1223ex32-1_kentucky.htm	Edgar Link	pending
f10q1223ex32-2_kentucky.htm	Edgar Link	pending
f10q1223_kentucky.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
kffb-20231231.xsd	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
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R28.htm	Edgar Link	pending
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R34.htm	Edgar Link	pending
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R37.htm	Edgar Link	pending
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R40.htm	Edgar Link	pending
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R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable

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$KFFB
Kentucky First Federal Bancorp Stock $kffb

2024 Q1 Form 10-Q Financial Statement

#000121390024014153 Filed on February 14, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KFFB Kentucky First Federal Bancorp Stock $kffb

2024 Q1 Form 10-Q Financial Statement

#000121390024014153 Filed on February 14, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KFFB
Kentucky First Federal Bancorp Stock $kffb