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INVENTORIES (Details) (USD $)
Sep. 28, 2013
Dec. 29, 2012
INVENTORIES    
Raw materials $ 23,284,651 $ 21,557,053
Work-in-progress 4,741,838 3,654,801
Finished goods 8,957,198 7,097,077
Total $ 36,983,687 $ 32,308,931