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Condensed Financial Statements of Kentucky First Federal Bancorp (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Condensed Financial Statements of Kentucky First Federal Bancorp (Textual)
Unrealized holding gains (losses) on securities designated as available for sale	$ 1	$ (1)
Parent Company [Member]
Condensed Financial Statements of Kentucky First Federal Bancorp (Textual)
Unrealized holding gains (losses) on securities designated as available for sale	$ 1	$ (1)

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- Definition

Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e640-108580

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580

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