Note 11 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Income taxes computed at the statutory rate on pretax income	$ 2,276	$ 1,352
Tax exempt income	(360)	(317)
Cash surrender value income and death benefit	(55)	(124)
Tax credit	(22)	(25)
Other non-deductible expenses	11	26
Total income tax expense	$ 1,850	$ 912