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, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Net income available to common shareholders	$ 2,755	$ 2,287	$ 5,389	$ 4,523
Weighted average common shares outstanding (in shares)	3,149,160	3,132,556	3,147,156	3,125,857
Basic income per share (in dollars per share)	$ 0.87	$ 0.73	$ 1.71	$ 1.45
Dilutive effect of restricted stock (in shares)	118	0	119	0
Total common shares and dilutive potential common shares (in shares)	3,149,278	3,132,556	3,147,275	3,125,857
Dilutive income per share (in dollars per share)	$ 0.87	$ 0.73	$ 1.71	$ 1.45