Note 7 - Impairment of Long-lived Assets (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Property, Plant and Equipment, Net	$ 178,609	$ 169,060
Operating Lease, Right-of-Use Asset	275,111	287,941
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	40,752	45,110
Finite-lived Intangible Asset, Expected Amortization, Total	7,901	8,500
Other Assets Expected Amortization, Total	171	0
Asset Impairment Charges	$ 2,200	$ 1,300	$ 2,900