Note 3 - Securities (Details Textual) $ in Thousands	3 Months Ended			6 Months Ended
	Dec. 31, 2022 USD ($)		Dec. 31, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2022 USD ($)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	$ (1)	[1],[2]	$ 0	$ (3)	$ 0
Debt Securities, Available-for-Sale, Restricted	$ 131,731			$ 131,731		$ 126,679
Available-for-sale, Qualitative Disclosure, Number of Positions	399			399
Held-to-maturity, Qualitative Disclosure, Number of Positions	4			4
Equity Securities, FV-NI, Cost	$ 400			$ 400		$ 400
Equity Securities, FV-NI, Realized Gain (Loss), Total	$ 0		0	$ 0	0
Maximum [Member]
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax			$ 1		$ 1

[1] Income tax expense

[2] Securities (gains) losses, net