Note 14 - Income Taxes (Details Textual) - USD ($)	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Tax Expense (Benefit)	$ (951,000)	$ 3,695,000
Effective Income Tax Rate Reconciliation, Percent, Total	15.30%	20.60%
Unrecognized Tax Benefits, Ending Balance	$ 0