Note 16 - Income Taxes - Tax Effects of Temporary Differences That Give Rise to Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Sep. 30, 2024
Trademarks		$ 563	$ 562
Finance lease liabilities		12,132	11,511
Operating lease liabilities		68,881	73,037
Research and experimental expenditures		855	955
Accrued paid time off		802	768
Equity compensation	[1]	983	509
Other	[1]	791	435
Gross deferred tax assets		85,007	87,777
Property and equipment		(15,790)	(17,796)
Finance lease assets		(10,461)	(9,944)
Operating lease assets		(63,442)	(67,426)
Leasehold improvements		(1,906)	(1,919)
Prepaid expenses	[1]	(503)	(635)
Goodwill	[1]	(737)	(523)
Other	[1]	(31)	(5)
Gross deferred tax liabilities		(92,870)	(98,248)
Net deferred tax liabilities		$ (7,863)	$ (10,471)

[1] Equity compensation, prepaid expenses and goodwill at September 30, 2024 have been reclassified from other to be consistent with the current period presentation.