Note 8 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2022	Dec. 31, 2021
Net income	$ 869	$ 107	$ 3,590	$ 2,390	$ 976	$ 5,980
Basic weighted average number of common shares outstanding (in shares)	14,889,946		15,021,792		14,919,317	15,025,953
Stock options (in shares)	85		1,022		376	1,054
Diluted (in shares)	14,890,031		15,022,814		14,919,693	15,027,007
Basic Net Income per share (in dollars per share)	$ 0.06		$ 0.24		$ 0.07	$ 0.40
Diluted Net Income per share (in dollars per share)	$ 0.06		$ 0.24		$ 0.07	$ 0.40