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Inventory (Details) - USD ($)
Sep. 30, 2017
Dec. 31, 2016
Inventory [Abstract]    
Raw materials $ 10,873,118 $ 11,562,388
Work in process 316,510 360,550
Finished goods 1,838,017 1,530,641
Inventory, Gross 13,027,645 13,453,579
Obsolescence reserve (6,199,113) (6,142,640)
Total Inventory $ 6,828,532 $ 7,310,939