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Inventories
3 Months Ended
Mar. 31, 2012
Inventories [Abstract]  
Inventories

7. Inventories

Inventories consisted of the following at March 31, 2012 and December 31, 2011 (in thousands):

 

                 
     March 31, 2012     December 31, 2011  
     (in thousands)  

Raw materials

   $ 1,648      $ 1,665   

Work-in-process

     2,673        2,703   

Finished goods

     672        672   
    

 

 

   

 

 

 
       4,993        5,040   

Less: Allowance

     (31     (95
    

 

 

   

 

 

 

Total inventories

   $ 4,962      $ 4,945