XML 27 R16.htm IDEA: XBRL DOCUMENT v3.24.3

Formal Written Agreement	3 Months Ended
	Sep. 30, 2024
Formal Written Agreement [Abstract]
Formal Written Agreement	Note 5: Formal Written Agreement

X

- References

No definition available.

+ Details

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

X

- Definition

The entire disclosure of formal written agreement.

+ References

No definition available.

+ Details

Name:	kffb_FormalWrittenAgreementTextBlock
Namespace Prefix:	kffb_
Data Type:	dtr:textBlockItemType
Balance Type:	na
Period Type:	duration