Note 5 - Premises and Equipment (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Depreciation	$ 1,051	$ 991
Operating Lease, Weighted Average Remaining Lease Term (Year)	7 years 10 months 13 days
Operating Lease, Weighted Average Discount Rate, Percent	1.95%
Operating Lease, Expense	$ 254	$ 228
Premises and Equipment [Member]
Operating Lease, Right-of-Use Asset	921
Other Liabilities [Member]
Operating Lease, Liability	$ 951