Note 3 - Securities (Details Textual) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jun. 30, 2021 USD ($)
Available-for-sale Securities Income Tax Provision on Gross Realized Gains	$ 1	$ 2	$ 1	$ 2
Debt Securities, Available-for-sale, Restricted	$ 107,027		$ 107,027		$ 96,970
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	117		117
Equity Securities, FV-NI, Cost	$ 400	400	$ 400	400
Equity Securities, FV-NI, Total	432	424	432	424
Equity Securities, FV-NI, Unrealized Gain (Loss), Total	0	0	0	0
Proceeds from Sale of Equity Securities, FV-NI	$ 0	$ 0	$ 0	$ 0