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Note 10 - Inventory (Details) - Summary of Inventory (USD $)
In Thousands, unless otherwise specified
Sep. 28, 2014
Dec. 31, 2013
Summary of Inventory [Abstract]    
Raw materials $ 20,577 $ 19,372
Work in process 16,387 16,436
Finished goods 5,260 5,017
Reserve for excess and obsolete inventory (6,734) (6,403)
$ 35,490 $ 34,422