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Inventories
9 Months Ended
Oct. 01, 2011
Inventories [Abstract] 
Inventories

3. Inventories

Inventories are stated at the lower of average cost or market and consist of the following:

 

                 
    October 1,     December 31,  
    2011     2010  
    (In thousands)  

Raw materials

  $ 12,175     $ 13,370  

Work-in-progress

    3,482       5,295  

Finished goods

    4,097       2,006  
   

 

 

   

 

 

 
    $ 19,754     $ 20,671  
   

 

 

   

 

 

 

Finished goods inventory consists primarily of completed systems at customer sites that are undergoing installation and acceptance testing.