Note 7 - Lease Obligations - Schedule of Future Payments Under the Terms of the Leases (Details) (Assets Held Under Real Estate Leases for Build to Suit Stores (Details) - Asset Held under Real Estate Leases for Build-to-suit Stores, Capital Lease Finance Obligations [Member] $ in Thousands	Sep. 30, 2019 USD ($)
2020, Interest expense on capital lease finance obligations	$ 3,871
2020, Principle payments on capital lease finance obligations	569
2020, Interest expense on capital lease obligations	605
2020, Principal payments on capital lease obligations	333
2020, Future payments on capital lease finance and capital lease obligations	5,378
2021, Interest expense on capital lease finance obligations	3,816
2021, Principle payments on capital lease finance obligations	656
2021, Interest expense on capital lease obligations	570
2021, Principal payments on capital lease obligations	368
2021, Future payments on capital lease finance and capital lease obligations	5,410
2022, Interest expense on capital lease finance obligations	3,751
2022, Principle payments on capital lease finance obligations	747
2022, Interest expense on capital lease obligations	532
2022, Principal payments on capital lease obligations	407
2022, Future payments on capital lease finance and capital lease obligations	5,437
2023, Interest expense on capital lease finance obligations	3,675
2023, Principle payments on capital lease finance obligations	880
2023, Interest expense on capital lease obligations	488
2023, Principal payments on capital lease obligations	460
2023, Future payments on capital lease finance and capital lease obligations	5,503
2024, Interest expense on capital lease finance obligations	3,578
2024, Principle payments on capital lease finance obligations	1,095
2024, Interest expense on capital lease obligations	439
2024, Principal payments on capital lease obligations	515
2024, Future payments on capital lease finance and capital lease obligations	5,627
Thereafter, Interest expense on capital lease finance obligations	15,088
Thereafter, Principle payments on capital lease finance obligations	8,244
Thereafter, Interest expense on capital lease obligations	2,142
Thereafter, Principal payments on capital lease obligations	3,889
Thereafter, Future payments on capital lease finance and capital lease obligations	29,363
Non-cash derecognition of capital lease finance obligations at end of lease term	27,367
Non-cash derecognition of capital lease finance obligations at end of lease term	27,367
Total future payments, interest expense on capital lease finance obligations	33,779
Total future payments, principle payments on capital lease finance obligations	39,558
Total future payments, interest expense on capital lease obligations	4,776
Total future payments, principal payments on capital lease obligations	5,972
Total future payments, future payments on capital lease finance and capital lease obligations	$ 84,085