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, 2019	Sep. 30, 2018
Net income available to common shareholders	$ 1,503	$ 1,673
Weighted average common shares outstanding (in shares)	2,734,578	2,729,103
Basic income per share (in dollars per share)	$ 0.55	$ 0.61
Net income available to common shareholders	$ 1,503	$ 1,673
Dilutive effect of restricted stock (in shares)		68
Total common shares and dilutive potential common shares (in shares)	2,734,578	2,729,171
Dilutive income per share (in dollars per share)	$ 0.55	$ 0.61