Note 7 - Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	6 Months Ended
Mar. 31, 2018	Sep. 30, 2017
Property, plant, and equipment, gross	$ 337,789	$ 327,854
Less accumulated depreciation and amortization	(153,736)	(143,437)
Property and equipment, net	184,053	184,417
Construction in Progress [Member]
Property, plant, and equipment, gross	8,968	5,286
Assets Held Under Real Estate Leases for Build to Suit Stores [Member]
Property, plant, and equipment, gross	$ 31,900	29,548
Useful life (Year)	40 years
Assets Held under Capital Leases [Member]
Property, plant, and equipment, gross	$ 5,735	5,735
Assets Held under Capital Leases [Member] \| Minimum [Member]
Useful life (Year)	15 years
Assets Held under Capital Leases [Member] \| Maximum [Member]
Useful life (Year)	25 years
Land [Member]
Property, plant, and equipment, gross	$ 192	192
Building [Member]
Property, plant, and equipment, gross	$ 19,262	19,259
Useful life (Year)	40 years
Land Improvements [Member]
Property, plant, and equipment, gross	$ 1,159	1,159
Land Improvements [Member] \| Minimum [Member]
Useful life (Year)	5 years
Land Improvements [Member] \| Maximum [Member]
Useful life (Year)	24 years
Leasehold and Building Improvements [Member]
Property, plant, and equipment, gross	$ 130,364	131,679
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	$ 120,188	115,888
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	$ 20,021	$ 19,108
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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