XML 65 R48.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Loans (Details 5) - USD ($) $ in Thousands | Jun. 30, 2018 | Jun. 30, 2017
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | $ 274,189 | $ 260,031
Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 65,414 | 60,129
Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 1,093 | 6,230
Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 11,915 | 11,729
Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 195,767 | 181,943
One-to four-family [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 207,075 | 197,936
One-to four-family [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
One-to four-family [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 1,093 | 6,110
One-to four-family [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 10,215 | 9,883
One-to four-family [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
One-to four-family [Member] | Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 195,767 | 181,943
Multi-family [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 15,113 | 15,678
Multi-family [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 14,445 | 14,541
Multi-family [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Multi-family [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 668 | 1,137
Multi-family [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Multi-family [Member] | Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Construction [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 5,055 | 2,398
Construction [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 5,055 | 2,398
Construction [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Construction [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Construction [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Construction [Member] | Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Nonresidential real estate [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 31,700 | 29,061
Nonresidential real estate [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Nonresidential real estate [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 713 | 150
Nonresidential real estate [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Nonresidential real estate [Member] | Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Land [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 677 | 1,304
Land [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 677 | 1,304
Land [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Land [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Land [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Land [Member] | Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Farm [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 2,295 | 2,062
Farm [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 1,985 | 1,523
Farm [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Farm [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 310 | 539
Farm [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Farm [Member] | Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Loans on deposits [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 1,470 | 1,607
Loans on deposits [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 1,470 | 1,607
Loans on deposits [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Loans on deposits [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Loans on deposits [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Loans on deposits [Member] | Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Commercials and Industrial [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 1,910 | 2,513
Commercials and Industrial [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  | 27
Commercials and Industrial [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 7 |
Commercials and Industrial [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Commercials and Industrial [Member] | Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Home equity [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 7,603 | 6,853
Home equity [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 7,603 | 6,744
Home equity [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  | 93
Home equity [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  | 16
Home equity [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Home equity [Member] | Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Unsecured [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 508 | 400
Unsecured [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 506 | 396
Unsecured [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Unsecured [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 2 | 4
Unsecured [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Unsecured [Member] | Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Automobile [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 63 | 42
Automobile [Member] | Pass [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment | 63 | 42
Automobile [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Automobile [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Automobile [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |
Automobile [Member] | Not rated [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans Receivable, Recorded Investment |  |

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_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=kffb_NotRatedMember
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_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_NonResidentialRealEstateMember
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: | us-gaap_FinancialInstrumentAxis=kffb_FarmMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=kffb_LoansOnDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=kffb_CommercialsAndIndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_HomeEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=kffb_UnsecuredLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_AutomobilesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |