XML 68 R51.htm IDEA: XBRL DOCUMENT v3.24.3

Loans (Details) - Schedule of Impaired Loans by Class of Loans - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Schedule of Impaired Loans by Class of Loans [Line Items]
Unpaid Principal Balance and Recorded Investment, Total	$ 4,774	$ 5,013
Allowance for Loan Losses Allocated, Total
Average Recorded Investment, Total	5,128	5,319
Interest Income Recognized, Total	158	268
Cash Basis Income Recognized, Total	158	268
Farm [Member]
Schedule of Impaired Loans by Class of Loans [Line Items]
Unpaid Principal Balance and Recorded Investment
Allowance for Loan Losses Allocated
Average Recorded Investment		135
Interest Income Recognized		15
Cash Basis Income Recognized		15
Nonresidential real estate [Member]
Schedule of Impaired Loans by Class of Loans [Line Items]
Unpaid Principal Balance and Recorded Investment	1,925	1,717
Allowance for Loan Losses Allocated
Average Recorded Investment	1,893	1,395
Interest Income Recognized	54	63
Cash Basis Income Recognized	54	63
Home Equity [Member]
Schedule of Impaired Loans by Class of Loans [Line Items]
Unpaid Principal Balance and Recorded Investment		267
Allowance for Loan Losses Allocated
Average Recorded Investment	89	177
Interest Income Recognized		6
Cash Basis Income Recognized		6
Unsecured [Member]
Schedule of Impaired Loans by Class of Loans [Line Items]
Unpaid Principal Balance and Recorded Investment
Allowance for Loan Losses Allocated
Average Recorded Investment		2
Interest Income Recognized		1
Cash Basis Income Recognized		1
One- To Four-Family [Member] | Residential Real Estate [Member]
Schedule of Impaired Loans by Class of Loans [Line Items]
Unpaid Principal Balance and Recorded Investment	2,849	3,029
Allowance for Loan Losses Allocated
Average Recorded Investment	3,146	3,325
Interest Income Recognized	104	161
Cash Basis Income Recognized	104	161
Multi-Family [Member] | Residential Real Estate [Member]
Schedule of Impaired Loans by Class of Loans [Line Items]
Unpaid Principal Balance and Recorded Investment
Allowance for Loan Losses Allocated
Average Recorded Investment		285
Interest Income Recognized		22
Cash Basis Income Recognized		$ 22

X

- Definition

Unpaid principal balance and recorded investment.

+ References

No definition available.

+ Details

Name:	kffb_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalanceAndRecordedInvestment
Namespace Prefix:	kffb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of unpaid principal balance and recorded investment, total

+ References

No definition available.

+ Details

Name:	kffb_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalanceAndRecordedInvestment
Namespace Prefix:	kffb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses.

+ References

No definition available.

+ Details

Name:	kffb_ImpairedFinancingReceivablesWithNoRelatedAllowanceAverageRecordedInvestment
Namespace Prefix:	kffb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Allowance for loan losses allocated.

+ References

No definition available.

+ Details

Name:	kffb_ImpairedFinancingReceivablesWithNoRelatedAllowanceForLoanLossesAllocated
Namespace Prefix:	kffb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Interest income recognized.

+ References

No definition available.

+ Details

Name:	kffb_ImpairedFinancingReceivablesWithNoRelatedAllowanceInterestIncomeAccrualMethod
Namespace Prefix:	kffb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Cash Basis Income Recognized.

+ References

No definition available.

+ Details

Name:	kffb_ImpairedFinancingReceivablesWithNoRelatedAllowanceInterestIncomeCashBasisMethod
Namespace Prefix:	kffb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Average Recorded Investment.

+ References

No definition available.

+ Details

Name:	kffb_ImpairedFinancingReceivablesWithRelatedAllowanceAverageRecordedInvestment
Namespace Prefix:	kffb_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of allowance for loan losses allocated, total

+ References

No definition available.

+ Details

Name:	kffb_ImpairedFinancingReceivablesWithRelatedAllowanceForLoanLossesAllocated
Namespace Prefix:	kffb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	kffb_ImpairedFinancingReceivablesWithRelatedAllowanceInterestIncomeAccrualMethod
Namespace Prefix:	kffb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Cash Basis Income Recognized.

+ References

No definition available.

+ Details

Name:	kffb_ImpairedFinancingReceivablesWithRelatedAllowanceInterestIncomeCashBasisMethod
Namespace Prefix:	kffb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableImpairedLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_CollateralAxis=kffb_FarmMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CollateralAxis=kffb_NonresidentialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CollateralAxis=kffb_HomesEquityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CollateralAxis=kffb_UnsecuredMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=kffb_OneToFourFamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CollateralAxis=us-gaap_ResidentialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=kffb_MultiFamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: