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Collaborative Research and Development Agreements (Tables)
 6 Months Ended
Jun. 30, 2012
Revenue Recognized

During the three and six month periods the following revenue was recognized (in thousands):

 

     Three Months Ended
June 30,		      Six Months Ended
June 30,		  
         2012              2011              2012              2011      

NIAID Contract

    $ 750       $ 570       $ 1,740       $ 1,116   

All other NIH grants

      132         320         229         663   
  

 

 

     

 

 

     

 

 

     

 

 

  

Total NIH grant revenue recognized

    $ 882       $ 890       $ 1,969       $ 1,779