Note 5 - Earnings per Common Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended				6 Months Ended
		Dec. 31, 2025	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2025	Dec. 31, 2024
Net income		$ 6,348	$ 7,264	$ 5,647	$ 6,682	$ 13,612	$ 12,329
Weighted average shares outstanding during the period, net of treasury shares (in shares)		30,019		28,848		29,682	28,681
Weighted average vested restricted stock units outstanding (in shares)		1,077		1,010		1,069	999
Weighted average shares outstanding (in shares)		31,157		29,930		30,803	29,761
Basic earnings per common share (in dollars per share)		$ 0.2		$ 0.19		$ 0.44	$ 0.41
Basic (in shares)		31,157		29,930		30,803	29,761
Impact of common shares to be issued under stock option plans, and contingently issuable shares, if any (in shares)	[1]	847		946		882	948
Weighted average shares outstanding (in shares)		32,004		30,876		31,685	30,709
Diluted earnings per common share (in dollars per share)		$ 0.2		$ 0.18		$ 0.43	$ 0.4
Anti-dilutive securities (in shares)	[2]	4		265		2	265
Restricted Stock Units (RSUs) [Member]
Weighted average vested restricted stock units outstanding (in shares)		61		72		52	81

[1] Calculated using the “Treasury Stock” method as if dilutive securities were exercised and the funds were used to purchase common shares at the average market price during the period.

[2] Anti-dilutive securities were excluded from the computation of diluted net income per share for the three and six months ended December 31, 2025, and December 31, 2024, because the exercise price was greater than the average fair market price of the common shares or because the assumed proceeds from the award’s exercise or vesting was greater than the average fair market price of the common shares.