Note 14 - Earnings Per Share - Basic and Diluted Earnings Per Share Attributable to Common Shareholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended				6 Months Ended
		Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2024	Dec. 31, 2023
Net income available to common Shareholders		$ 15,004	$ 14,719	$ 17,411	$ 14,939	$ 29,723	$ 32,350
Basic weighted average shares common shares outstanding (in shares)		25,556		25,525		25,551	25,515
Dilutive effect of stock options and other share-based awards (1) (in shares)	[1]	69		105		71	109
Diluted weighted average shares common shares outstanding (in shares)		25,625		25,630		25,622	25,624
Net income per basic share (in dollars per share)		$ 0.59		$ 0.68		$ 1.16	$ 1.27
Net income per diluted share (in dollars per share)		$ 0.59		$ 0.68		$ 1.16	$ 1.26

[1] Dilutive potential common shares consist of stock options, restricted stock units and performance units.