Quarterly report pursuant to Section 13 or 15(d)

INVENTORIES (Details)

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INVENTORIES (Details) - USD ($)
Mar. 31, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Raw materials $ 31,683,122 $ 31,973,073
Work-in-process 11,948,944 9,897,857
Finished goods 24,759,883 18,928,579
Inventories $ 68,391,949 $ 60,799,509