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Stock-Based Compensation
6 Months Ended
Jun. 30, 2012
Stock-Based Compensation [Abstract]  
Stock-Based Compensation
Note 4. Stock-Based Compensation

Our non-cash stock-based compensation expense is as follows (in thousands):

 

                                 
    Three months ended     Six months ended  
    June 30,     June 30,  
    2012     2011     2012     2011  

Research and development

  $ 375     $ 769     $ 840     $ 1,500  

General and Administrative

    494       654       936       1,226  
   

 

 

   

 

 

   

 

 

   

 

 

 
    $ 869     $ 1,423     $ 1,776     $ 2,726