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Note 3 - Inventories
3 Months Ended
Mar. 31, 2012
Inventory Disclosure [Text Block]
3. Inventories - Inventories consist of the following (in thousands):

   
March 31, 2012
   
December 31, 2011
 
Work in progress
  $ 14,595     $ 11,596  
Finished goods
    6,952       8,508  
Total inventories
  $ 21,547     $ 20,104