Note 11 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Income taxes computed at the statutory rate on pretax income	$ 1,352	$ 1,382
Tax exempt income	(317)	(319)
Cash surrender value income and death benefit	(124)	(57)
Tax credit	(25)	(28)
Other non-deductible expenses	26	35
Total income tax expense	$ 912	$ 1,013