Note 3 - Securities (Details Textual) $ in Thousands	12 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)
Available-for-sale Securities Income Tax Provision on Gross Realized Gains	$ 3	$ 74
Debt Securities, Available-for-sale, Restricted	$ 96,970	69,048
Available-for-sale, Qualitative Disclosure, Number of Positions	312
Held-to-maturity, Qualitative Disclosure, Number of Positions	4
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	48
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions	1
Debt Securities, Held-to-maturity, Unrealized Loss Position, Number of Positions	0
Equity Securities, FV-NI, Cost	$ 400	0
Equity Securities, FV-NI, Realized Gain (Loss), Total	$ 0	$ 0