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INVENTORIES (Details) - USD ($)
Jul. 01, 2017
Dec. 31, 2016
INVENTORIES    
Inventory reserves $ 1,000,000 $ 1,100,000
Raw materials 21,865,236 17,404,606
Work-in-progress 3,661,950 3,397,225
Finished goods 5,164,661 3,443,491
Total $ 30,691,847 $ 24,245,322