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Inventories (Tables)
9 Months Ended
Oct. 03, 2015
Inventory Disclosure [Abstract]  
Schedule of inventory
Inventories are valued at the lower of cost (first in, first out) or market. Inventories consist of the following (in thousands):
 
October 3, 2015
 
January 3, 2015
Raw materials
$
37,434

 
$
29,300

Work in process
13,697

 
16,442

Finished goods
104,061

 
99,790

 
$
155,192

 
$
145,532