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Note 1 - Basis of Presentation and Certain Significant Accounting Policies - Components of Inventory (Details) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Inventory on hand:    
Finished goods held for sale $ 28,829,685 $ 31,718,769
Raw materials and work in process 891,541 917,966
Inventory in transit 732,096 1,119,541
Merchandise expected to be returned 111,000 111,000
Total inventory $ 30,564,322 $ 33,867,276