Note 5 - Earnings Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Net income available to common shareholders	$ 722	$ 639	$ 1,623	$ 1,366
Weighted average common shares outstanding (in shares)	2,724,061	2,724,774	2,723,988	2,724,573
Basic income per share (in dollars per share)	$ 0.27	$ 0.23	$ 0.60	$ 0.50
Net income available to common shareholders	$ 722	$ 639	$ 1,623	$ 1,366
Weighted average common shares outstanding (in shares)	2,724,061	2,724,774	2,723,988	2,724,573
Dilutive effect of restricted stock (in shares)	19	157	13	173
Total common shares and dilutive potential common shares (in shares)	2,724,080	2,724,931	2,724,001	2,724,746
Dilutive income per share (in dollars per share)	$ 0.27	$ 0.23	$ 0.60	$ 0.50