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, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Net income available to common shareholders	$ 1,849	$ 657	$ 3,522	$ 1,586
Weighted average common shares outstanding (in shares)	2,730,375	2,727,666	2,730,355	2,725,859
Basic income per share (in dollars per share)	$ 0.68	$ 0.24	$ 1.29	$ 0.58
Net income available to common shareholders	$ 1,849	$ 657	$ 3,522	$ 1,586
Weighted average common shares outstanding (in shares)	2,730,375	2,727,666	2,730,355	2,725,859
Dilutive effect of restricted stock (in shares)			23
Total common shares and dilutive potential common shares (in shares)	2,730,375	2,727,666	2,730,378	2,725,859
Dilutive income per share (in dollars per share)	$ 0.68	$ 0.24	$ 1.29	$ 0.58