Note 6 - Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2023
Property, plant, and equipment, gross	$ 458,111	$ 428,688
Less accumulated depreciation and amortization	(279,502)	(259,628)
Property and equipment, net	178,609	169,060
Construction in Progress [Member]
Property, plant, and equipment, gross	5,758	15,221
Land [Member]
Property, plant, and equipment, gross	$ 6,746	6,746
Building [Member]
Property, plant, and equipment, gross		46,412
Building [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	16 years
Building [Member] | Maximum [Member]
Property, plant, and equipment, gross	$ 60,556
Property, Plant and Equipment, Useful Life (Year)	40 years
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	1 year
Leasehold Improvements [Member] | Maximum [Member]
Property, plant, and equipment, gross	$ 2,324
Land Improvements [Member]
Property, plant, and equipment, gross		2,112
Land Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	1 year
Land Improvements [Member] | Maximum [Member]
Property, plant, and equipment, gross	$ 185,045
Property, Plant and Equipment, Useful Life (Year)	24 years
Leasehold and Building Improvements [Member]
Property, plant, and equipment, gross		173,407
Leasehold and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	25 years
Furniture and Fixtures [Member]
Property, plant, and equipment, gross		157,710
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, plant, and equipment, gross	$ 167,060
Property, Plant and Equipment, Useful Life (Year)	7 years
Computer Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Computer Equipment [Member] | Maximum [Member]
Property, plant, and equipment, gross	$ 30,622
Computer Hardware and Software [Member]
Property, plant, and equipment, gross		$ 27,080
Computer Hardware and Software [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years