XML 77 R24.htm IDEA: XBRL DOCUMENT
v3.20.2

Securities (Tables) | 12 Months Ended
--- | ---
Jun. 30, 2020
Investments, Debt and Equity Securities [Abstract] |
Schedule of gross unrealized or unrecognized gains and losses |
|  | 2020 |
(in thousands) |  | Amortized cost |  |  | Gross unrealized/ unrecognized gains |  |  | Gross unrealized/ unrecognized losses |  |  | Estimated fair value |
Available-for-sale Securities |  |  |  |  |  |  |  |  |  |  |  |
Agency bonds |  | $ | 500 |  |  | $ | 3 |  |  | $ | - |  |  | $ | 503 |
Agency mortgage-backed:residential |  |  | 38 |  |  |  | - |  |  |  | - |  |  |  | 38 |
|  | $ | 538 |  |  | $ | 3 |  |  | $ | - |  |  | $ | 541 |
Held-to-maturity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed: residential |  | $ | 598 |  |  | $ | 16 |  |  | $ | 3 |  |  | $ | 611 |
|  | 2019 |
(in thousands) |  | Amortized cost |  |  | Gross unrealized/ unrecognized gains |  |  | Gross unrealized/ unrecognized losses |  |  | Estimated fair value |
Available-for-sale Securities |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 496 |  |  | $ | 1 |  |  | $ | - |  |  | $ | 497 |
Agency bonds |  |  | 501 |  |  |  | 4 |  |  |  | - |  |  |  | 505 |
Agency mortgage-backed: residential |  |  | 43 |  |  |  | - |  |  |  | - |  |  |  | 43 |
|  | $ | 1,040 |  |  | $ | 5 |  |  | $ | - |  |  | $ | 1,045 |
Held-to-maturity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency mortgage-backed: residential |  | $ | 775 |  |  | $ | 14 |  |  | $ | 14 |  |  | $ | 775 |

X
- Definition The entire tabular disclosure of investment holdings. + References No definition available. + Details
Name: | kffb_InvestmentsSecuritiesTableTextBlock
Namespace Prefix: | kffb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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