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Note 4 - Inventories
12 Months Ended
Dec. 31, 2011
Inventory Disclosure [Text Block]
4.        Inventories

Inventories as of December 31, 2011 and 2010 consisted of:

   
2011
   
2010
 
   
(in thousands)
   
(in thousands)
 
             
Raw materials
  $ 1,070     $ 759  
Work in progress
    16       10  
Finished goods
    109       47  
    $ 1,195     $ 816