Note 11 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Income taxes computed at the statutory rate on pretax income	$ 2,842	$ 2,276
Tax exempt income	(431)	(360)
Cash surrender value income	(54)	(55)
Tax credit	(22)	(22)
Other non-deductible expenses	4	11
Total income tax expense	$ 2,339	$ 1,850