Note 2 - Securities (Details Textual) $ in Thousands		3 Months Ended
		Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	[1],[2]	$ (16)
Debt Securities, Available-for-Sale, Restricted			$ 158,873	$ 153,908
Available-for-sale, Qualitative Disclosure, Number of Positions			416
Available-for-sale, Qualitative Disclosure, Number of Positions			388
Held-to-maturity, Qualitative Disclosure, Number of Positions			4
Equity Securities, FV-NI, Cost			$ 400	400
Equity Securities, FV-NI			$ 381	$ 381
US States and Political Subdivisions Debt Securities [Member] | Rated [Member]
Percent of Available for Sale Debt Securities Portfolio			97.40%
US States and Political Subdivisions Debt Securities [Member] | Non-rated [Member]
Percent of Available for Sale Debt Securities Portfolio			2.60%
Maximum [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax		$ (16)

[1] Income tax expense

[2] Securities (gains) losses, net