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Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2012
Stock-Based Compensation [Abstract]  
Stock-based compensation expense

Stock-based compensation expense for the three and nine months ended September 30 was as follows (in thousands):

 

                                 
    Three Months Ended
September 30,
    Nine Months Ended
September 30,
 
    2012     2011     2012     2011  

Cost of revenues

  $ 10     $ 16     $ 36     $ 51  

Selling, general and administrative

    205       362       679       887  

Research and development

    85       227       255       506  
   

 

 

   

 

 

   

 

 

   

 

 

 

Total stock-based compensation

  $ 300     $ 605     $ 970     $ 1,444