Note 7 - Impairment of Long-lived Assets (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Property, Plant and Equipment, Net	$ 182,741	$ 178,609
Operating Lease, Right-of-Use Asset	259,586	275,111
Finance Lease, Right-of-Use Asset, after Accumulated Amortization	42,895	40,752
Finite-lived Intangible Asset, Expected Amortization, Total	6,168	7,900
Other Assets Expected Amortization, Total	5,150	171
Asset Impairment Charges	$ 100	$ 2,200	$ 1,300