Note 14 - Stock Based Compensation - Schedule of Stock Based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Total stock-based compensation expense for continuing and discontinued operations	$ 14,467	$ 9,376	$ 12,443
Income tax benefit	(2,025)	(1,406)	(1,929)
Total compensation expense included in the statement of operations	12,442	7,970	10,514
Restricted Stock Units (RSUs) [Member]
Total stock-based compensation expense for continuing and discontinued operations	13,222	8,027	10,597
Employee Stock Purchase Plan [Member]
Total stock-based compensation expense for continuing and discontinued operations	$ 1,245	$ 1,349	$ 1,846