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Inventories (Schedule of Inventories, Current) (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Inventory Disclosure [Abstract]    
Raw materials and work in process $ 2,576,621 $ 2,571,465
Finished goods 1,693,522 3,028,854
Total inventories $ 4,270,143 $ 5,600,319