Note 6 - 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, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Net income available to common shareholders	$ 3,162	$ 2,507	$ 5,827	$ 4,908
Weighted average common shares outstanding (in shares)	3,034,362	3,017,268	3,032,416	3,015,741
Basic income per share (in dollars per share)	$ 1.04	$ 0.83	$ 1.92	$ 1.63
Dilutive effect of restricted stock (in shares)	438	21	233	0
Total common shares and dilutive potential common shares (in shares)	3,034,800	3,017,289	3,032,649	3,015,741
Dilutive income per share (in dollars per share)	$ 1.04	$ 0.83	$ 1.92	$ 1.63