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Note 3. Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 30, 2014
Dec. 31, 2013
Inventory Disclosure [Abstract]    
Raw materials $ 16,147 $ 16,239
Work in process 2,218 2,412
Finished goods 8,297 7,402
Total $ 26,662 $ 26,053