Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 28, 2014
Dec. 28, 2013
Inventories [Abstract]    
Raw materials $ 12,301 $ 13,824
Work in progress 8,361 8,147
Finished goods 23,866 25,271
Inventories $ 44,528 $ 47,242