Note 6 - Earnings Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Net income available to common shareholders	$ 2,665	$ 2,401
Weighted average common shares outstanding (in shares)	3,024,794	3,010,844
Basic income per share (in dollars per share)	$ 0.88	$ 0.80
Dilutive effect of restricted stock (in shares)	202	0
Total common shares and dilutive potential common shares (in shares)	3,024,996	3,010,844
Dilutive income per share (in dollars per share)	$ 0.88	$ 0.80