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INVENTORIES (Details) (USD $)
Mar. 29, 2014
Dec. 28, 2013
INVENTORIES    
Raw materials $ 20,693,884 $ 20,877,513
Work-in-progress 3,689,050 3,673,301
Finished goods 4,837,805 7,945,441
Total $ 29,220,739 $ 32,496,255