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Inventories, Net (Details) - USD ($)
Mar. 31, 2017
Dec. 31, 2016
Inventory [Line Items]    
Raw materials $ 3,479,323 $ 3,310,310
Work in process 2,271,295 1,942,600
Finished goods 13,027,883 13,889,328
Allowance for excess quantities (814,307) (794,227)
Total inventories $ 17,964,194 $ 18,348,011