Note 3 - Securities (Details Textual) $ in Thousands	12 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Available-for-sale Securities Income Tax Provision on Gross Realized Gains	$ 74	$ 118
Debt Securities, Available-for-sale, Restricted	$ 69,048	72,600
Available-for-sale, Qualitative Disclosure, Number of Positions	255
Held-to-maturity, Qualitative Disclosure, Number of Positions	3
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	4
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
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities, Total	$ 0	$ 0