Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 28, 2013
Dec. 29, 2012
Inventories [Abstract]    
Raw materials $ 12,142 $ 9,228
Work in progress 7,771 7,703
Finished goods 25,758 19,550
Inventories $ 45,671 $ 36,481