Note 6 - Earnings Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Net income available to common shareholders	$ 1,851	$ 2,052	$ 6,374	$ 6,477
Weighted average common shares outstanding (in shares)	3,139,105	3,115,723	3,130,077	3,104,994
Basic income per share (in dollars per share)	$ 0.59	$ 0.66	$ 2.04	$ 2.09
Dilutive effect of restricted stock (in shares)	44	0	0	0
Total common shares and dilutive potential common shares (in shares)	3,139,149	3,115,723	3,130,077	3,104,994
Dilutive income per share (in dollars per share)	$ 0.59	$ 0.66	$ 2.04	$ 2.09