XML 32 R21.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 1 - Basis of Presentation and Certain Significant Accounting Policies - Components of Inventory (Details) - USD ($)
Mar. 31, 2018
Dec. 31, 2017
Inventory on hand:    
Finished goods held for sale $ 34,185,969 $ 34,824,728
Raw materials and work in process 1,082,632 1,138,316
Inventory in transit 1,503,259 1,348,153
Total inventory $ 36,771,860 $ 37,311,197