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Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Stock-Based Compensation Expense

Total stock-based compensation expense was recognized in our Condensed Consolidated Statements of Operations as follows (in thousands):

 

     Three months ended
June 30,		      Six months ended
June 30,		  
     2014      2013      2014      2013  

Cost of goods sold

    $ 280       $ 324       $ 599       $ 647   

Research and development expense

      1,832         1,977         3,805         3,852   

General and administrative expense

      2,052         2,055         4,121         4,102   
  

 

 

     

 

 

     

 

 

     

 

 

  

Total stock-based compensation

    $ 4,164       $ 4,356       $ 8,525       $ 8,601