XML 61 R46.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Loans (Details) - Schedule of allowance for loan losses and the recorded investment in loans by portfolio - USD ($) $ in Thousands | Jun. 30, 2022 | Jun. 30, 2021
--- | --- | ---
Total [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | $ 276,112 |  |
Ending allowance attributed to loans |  | 1,529 |  |
Loans individually evaluated for impairment [Member] | One- to four-family [Member] |  |  |  |
Residential real estate |  |  |  |
Loans individually evaluated |  | 3,221 | $ 3,738 | [1]
Loans acquired with deteriorated credit quality | [1] | 400 | 595 |
Ending loans balance |  | 3,621 | 4,333 |
Ending allowance attributed to loans | [1] |  |  |
Loans individually evaluated for impairment [Member] | Multi-family [Member] |  |  |  |
Residential real estate |  |  |  |
Loans individually evaluated |  | 570 | 646 |
Loans acquired with deteriorated credit quality | [1] |  |  |
Ending loans balance |  | 570 | 646 |
Ending allowance attributed to loans | [1] |  |  |
Loans individually evaluated for impairment [Member] | Farm [Member] |  |  |  |
Residential real estate |  |  |  |
Loans individually evaluated |  | 270 | 274 |
Loans acquired with deteriorated credit quality | [1] |  |  |
Ending loans balance |  | 270 | 274 |
Ending allowance attributed to loans | [1] |  |  |
Loans individually evaluated for impairment [Member] | Nonresidential real estate [Member] |  |  |  |
Residential real estate |  |  |  |
Loans individually evaluated |  | 1,073 | 1,367 |
Loans acquired with deteriorated credit quality | [1] |  |  |
Ending loans balance |  | 1,073 | 1,367 |
Ending allowance attributed to loans | [1] |  |  |
Loans individually evaluated for impairment [Member] | Unsecured [Member] |  |  |  |
Residential real estate |  |  |  |
Loans individually evaluated |  | 5 | 16 |
Loans acquired with deteriorated credit quality | [1] |  |  |
Ending loans balance |  | 5 | 16 |
Ending allowance attributed to loans | [1] |  |  |
Loans individually evaluated for impairment [Member] | Total [Member] |  |  |  |
Residential real estate |  |  |  |
Loans individually evaluated |  |  | 6,041 |
Loans acquired with deteriorated credit quality | [1] |  | 595 |
Ending loans balance |  |  | 6,636 |
Ending allowance attributed to loans |  |  |  |
Nonresidential real estate [Member] | Home equity [Member] |  |  |  |
Residential real estate |  |  |  |
Loans individually evaluated |  | 87 |  |
Loans acquired with deteriorated credit quality | [1] |  |  |
Ending loans balance |  | 87 |  |
Nonresidential real estate [Member] | Total [Member] |  |  |  |
Residential real estate |  |  |  |
Loans individually evaluated |  | 5,226 |  |
Loans acquired with deteriorated credit quality | [1] | 400 |  |
Ending loans balance |  | 5,626 |  |
Ending allowance attributed to loans |  |  |  |
Loans collectivelly evaluated for impairment [Member] | One- to four-family [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 212,811 | 219,792 |
Ending allowance attributed to loans |  | 800 | 794 |
Loans collectivelly evaluated for impairment [Member] | Multi-family [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 13,682 | 19,135 |
Ending allowance attributed to loans |  | 231 | 291 |
Loans collectivelly evaluated for impairment [Member] | Farm [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 1,068 | 1,960 |
Ending allowance attributed to loans |  | 5 | 5 |
Loans collectivelly evaluated for impairment [Member] | Nonresidential real estate [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 30,368 | 34,125 |
Ending allowance attributed to loans |  | 461 | 494 |
Loans collectivelly evaluated for impairment [Member] | Home equity [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 7,583 | 7,135 |
Ending allowance attributed to loans |  | 21 | 15 |
Loans collectivelly evaluated for impairment [Member] | Unsecured [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 535 | 537 |
Ending allowance attributed to loans |  | 1 | 1 |
Loans collectivelly evaluated for impairment [Member] | Construction [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 1,363 | 5,433 |
Ending allowance attributed to loans |  | 4 | 12 |
Loans collectivelly evaluated for impairment [Member] | Land [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 1,062 | 1,308 |
Ending allowance attributed to loans |  | 3 | 3 |
Loans collectivelly evaluated for impairment [Member] | Commercial and industrial [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 1,006 | 2,259 |
Ending allowance attributed to loans |  | 2 | 5 |
Loans collectivelly evaluated for impairment [Member] | Loans on deposits [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 891 | 1,129 |
Ending allowance attributed to loans |  | 1 | 2 |
Loans collectivelly evaluated for impairment [Member] | Automobile [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 117 | 75 |
Ending allowance attributed to loans |  |  |  |
Loans collectivelly evaluated for impairment [Member] | Consumer and other [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  | 270,486 | 292,888 |
Ending allowance attributed to loans |  | $ 1,529 | 1,622 |
Total [Member] |  |  |  |
Residential real estate |  |  |  |
Ending loans balance |  |  | 299,524 |
Ending allowance attributed to loans |  |  | $ 1,622 |
[1] | These loans were evaluated at acquisition date at their estimated fair value and there has been no subsequent deterioration since acquisition.

X
- Definition Loans collectively evaluated for impairment, Unallocated Loans collectively evaluated for impair. + References No definition available. + Details
Name: | kffb_EndingAllowanceAttributedToLoans
Namespace Prefix: | kffb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Loans individually evaluated for impairment, Ending loans balance. + References No definition available. + Details
Name: | kffb_EndingLoansBalance
Namespace Prefix: | kffb_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Loans individually evaluated for impairment, Loans acquired with deteriorated credit quality. + References No definition available. + Details
Name: | kffb_LoansAcquiredWithDeterioratedCreditQuality
Namespace Prefix: | kffb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Loans individually evaluated for impairment, Loans Individually evaluated + References No definition available. + Details
Name: | kffb_LoansIndividuallyEvaluated
Namespace Prefix: | kffb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | kffb_ResidentialRealEstateAbstract0
Namespace Prefix: | kffb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | kffb_ResidentialRealEstateFamilyAxis=kffb_TotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kffb_FinancingReceivableAllowanceForCreditLossesAxis=kffb_LoansIndividuallyEvaluatedForImpairmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kffb_ResidentialRealEstateFamilyAxis=kffb_OnetoFourfamilyResidentialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kffb_ResidentialRealEstateFamilyAxis=srt_MultifamilyMember
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_NonresidentialRealEstateMember
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: |

X
- Details
Name: | kffb_FinancingReceivableAllowanceForCreditLossesAxis=kffb_NonresidentialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kffb_ResidentialRealEstateFamilyAxis=kffb_HomeQquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kffb_FinancingReceivableAllowanceForCreditLossesAxis=kffb_LoansCollectivellyEvaluatedForImpairmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kffb_ResidentialRealEstateFamilyAxis=us-gaap_ConstructionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kffb_ResidentialRealEstateFamilyAxis=us-gaap_LandMember
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_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_ConsumerAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kffb_FinancingReceivableAllowanceForCreditLossesAxis=kffb_TotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |