Quarterly report pursuant to Section 13 or 15(d)

INVENTORIES (Details)

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INVENTORIES (Details) - USD ($)
Jun. 30, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Raw materials $ 32,868,380 $ 34,821,694
Work-in-process 6,688,291 5,096,515
Finished goods 19,983,931 23,897,426
Inventories, net $ 59,540,602 $ 63,815,635