Note 3 - Securities (Details Textual)		12 Months Ended
		Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	[1],[2]	$ 1,000	$ 3,000
Debt Securities, Available-for-Sale, Restricted		$ 126,679	96,970,000
Available-for-sale, Qualitative Disclosure, Number of Positions		436
Held-to-maturity, Qualitative Disclosure, Number of Positions		4
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions		387
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions		29
Debt Securities, Held-to-maturity, Unrealized Loss Position, Number of Positions		1
Equity Securities, FV-NI, Cost		$ 400,000
Equity Securities, FV-NI, Realized Gain (Loss), Total		$ 0	$ 0

[1] Income tax expense

[2] Securities gain, net