XML 44 R34.htm IDEA: XBRL DOCUMENT v3.24.0.1

Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans - USD ($) $ in Thousands	Dec. 31, 2023	Jun. 30, 2023
Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Total loand by Portfolio	$ 327,780
Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Total loand by Portfolio	2,132
Loans individually evaluated for impairment [Member] | Amortized Cost Basis [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment	5,265
Loans individually evaluated for impairment [Member] | Ending allowance on collateral- dependent loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment
Loans individually evaluated for impairment [Member] | Loans individually evaluated [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment	5,265	$ 4,817
Loans individually evaluated for impairment [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment	185	196	[1]
Loans individually evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment	5,450	5,013
Loans individually evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment
Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	322,330	310,428
Total loand by Portfolio		315,441
Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	2,132	1,634
Total loand by Portfolio		1,634
One-to four-family [Member] | Loans individually evaluated for impairment [Member] | Amortized Cost Basis [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment	3,285
One-to four-family [Member] | Loans individually evaluated for impairment [Member] | Ending allowance on collateral- dependent loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment
One-to four-family [Member] | Loans individually evaluated for impairment [Member] | Loans individually evaluated [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment	3,285	2,833
One-to four-family [Member] | Loans individually evaluated for impairment [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment	185	196	[1]
One-to four-family [Member] | Loans individually evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment	3,448	3,029
One-to four-family [Member] | Loans individually evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment
Nonresidential real estate [Member] | Loans individually evaluated for impairment [Member] | Amortized Cost Basis [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment	1,980
Nonresidential real estate [Member] | Loans individually evaluated for impairment [Member] | Ending allowance on collateral- dependent loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment
Nonresidential real estate [Member] | Loans individually evaluated for impairment [Member] | Loans individually evaluated [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment	1,980	1,717
Nonresidential real estate [Member] | Loans individually evaluated for impairment [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment			[1]
Nonresidential real estate [Member] | Loans individually evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment	1,980	1,717
Nonresidential real estate [Member] | Loans individually evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment
Nonresidential real estate [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	28,513	28,500
Nonresidential real estate [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	198	405
Commercial and Industrial [Member] | Loans individually evaluated for impairment [Member] | Amortized Cost Basis [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment
Commercial and Industrial [Member] | Loans individually evaluated for impairment [Member] | Ending allowance on collateral- dependent loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment
Commercial and Industrial [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment		1,184
Commercial and Industrial [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment		23
Home Equity Loans [Member] | Loans individually evaluated for impairment [Member] | Loans individually evaluated [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment		267
Home Equity Loans [Member] | Loans individually evaluated for impairment [Member] | Loans Acquired with Deteriorated Credit Quality [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment			[1]
Home Equity Loans [Member] | Loans individually evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment		267
Home Equity Loans [Member] | Loans individually evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans individually evaluated for impairment
Home Equity Loans [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	9,614	8,950
Home Equity Loans [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	59	23
One- to four-family One [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	247,452	237,047
One- to four-family One [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	1,587	857
Multi-family [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	18,727	19,067
Multi-family [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	130	278
Construction [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	13,165	12,294
Construction [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	124	41
Land Loan [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	841	470
Land Loan [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	22	1
Farm [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	1,337	1,346
Farm [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	5	4
Commercial and industrial [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	1,113
Commercial and industrial [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	6
Loans on deposits [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	795	855
Loans on deposits [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment		1
Automobiles [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	156	104
Automobiles [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment
Unsecured [Member] | Loans collectively evaluated for impairment [Member] | Ending Loan Balance [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	617	611
Unsecured [Member] | Loans collectively evaluated for impairment [Member] | Ending allowance attributed to loans [Member]
Loans Receivable (Details) - Schedule of Amortized Cost Basis of Collateral-Dependent Loans [Line Items]
Loans collectively evaluated for impairment	$ 1	$ 1
[1] These loans were evaluated at acquisition date at their estimated fair value and there has been no subsequent deterioration since acquisition.

X

- References

No definition available.

+ Details

Name:	kffb_LoansReceivableDetailsScheduleofAmortizedCostBasisofCollateralDependentLoansLineItems
Namespace Prefix:	kffb_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of allowance for credit loss on accounts receivable, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-4

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivableNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L(5)(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11C
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-11C

+ Details

Name:	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11C
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-11C

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SAB Topic 6.L(5)(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4

+ Details

Name:	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_CreditLossStatusAxis=kffb_EndingLoanBalanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CreditLossStatusAxis=kffb_EndingAllowanceAttributedToLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_FinancingReceivableAllowanceForCreditLossAxis=kffb_LoansIndividuallyEvaluatedForImpairmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CreditLossStatusAxis=kffb_AmortizedCostBasisMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CreditLossStatusAxis=kffb_EndingAllowanceOnCollateralDependentLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CreditLossStatusAxis=kffb_LoansIndividuallyEvaluatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CreditLossStatusAxis=us-gaap_FinancialAssetAcquiredWithCreditDeteriorationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_FinancingReceivableAllowanceForCreditLossAxis=kffb_LoansCollectivelyEvaluatedForImpairmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_ResidentialRealEstateOneToFourFamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_NonresidentialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_CommercialAndIndustrialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_HomeEquityLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_OneToFourfamilyOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_ResidentialRealEstateMultiFamilyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_ResidentialRealEstateConstructionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_LandLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_FarmMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_CommercialsAndIndustrialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_LoansOnDepositsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=us-gaap_AutomobilesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kffb_ResidentialRealEstateFamilyAxis=kffb_UnsecuredMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: