Note 8 - Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	6 Months Ended
Mar. 31, 2022	Sep. 30, 2021
Property, plant, and equipment, gross	$ 381,745	$ 375,265
Less accumulated depreciation and amortization	(233,959)	(223,866)
Property and equipment, net	147,786	151,399
Construction in Progress [Member]
Property, plant, and equipment, gross	6,009	2,268
Land [Member]
Property, plant, and equipment, gross	6,272	6,062
Building [Member]
Property, plant, and equipment, gross	$ 34,481	34,531
Building [Member] \| Minimum [Member]
Useful life (Year)	16 years
Building [Member] \| Maximum [Member]
Useful life (Year)	40 years
Land Improvements [Member]
Property, plant, and equipment, gross	$ 1,792	1,782
Land Improvements [Member] \| Minimum [Member]
Useful life (Year)	1 year
Land Improvements [Member] \| Maximum [Member]
Useful life (Year)	24 years
Leasehold and Building Improvements [Member]
Property, plant, and equipment, gross	$ 160,199	159,800
Leasehold and Building Improvements [Member] \| Minimum [Member]
Useful life (Year)	1 year
Leasehold and Building Improvements [Member] \| Maximum [Member]
Useful life (Year)	25 years
Furniture and Fixtures [Member]
Property, plant, and equipment, gross	$ 147,695	145,754
Furniture and Fixtures [Member] \| Minimum [Member]
Useful life (Year)	5 years
Furniture and Fixtures [Member] \| Maximum [Member]
Useful life (Year)	7 years
Computer Hardware and Software [Member]
Property, plant, and equipment, gross	$ 25,297	$ 25,068
Computer Hardware and Software [Member] \| Minimum [Member]
Useful life (Year)	3 years
Computer Hardware and Software [Member] \| Maximum [Member]
Useful life (Year)	5 years

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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