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Note 6 - Inventory (Details) - Summary of Inventory (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Summary of Inventory [Abstract]    
Raw materials $ 19,372 $ 20,645
Work in process 16,436 14,198
Finished goods 5,017 4,461
Reserve for excess and obsolete inventory (6,403) (5,346)
$ 34,422 $ 33,958