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Inventories, Net (Details) - USD ($)
Jul. 02, 2016
Jan. 02, 2016
Components of inventories [Abstract]    
Raw material and component parts $ 10,066,879 $ 10,913,827
Work in process 7,085,462 7,681,576
Finished goods 16,830,984 18,247,010
Inventories, net $ 33,983,325 $ 36,842,413