Note 9 - Earnings Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2023	Dec. 31, 2022
Net income (loss)	$ 1,229	$ (176)	$ 847	$ 53	$ 1,053	$ 900
Basic weighted average number of common shares outstanding (in shares)	14,291,328		14,889,946		14,378,419	14,919,317
Stock options (in shares)	68		85		132	376
Diluted (in shares)	14,291,396		14,890,031		14,378,551	14,919,693
Basic Net Income (Loss) per share (in dollars per share)	$ 0.09		$ 0.06		$ 0.07	$ 0.06
Diluted Net Income (Loss) per share (in dollars per share)	$ 0.09		$ 0.06		$ 0.07	$ 0.06