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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2013
Property Plant And Equipment [Abstract]  
Summary of Property and Equipment

Property and equipment consist of the following (in thousands):

 

     December 31,  
     2013     2012  

Laboratory equipment

   $ 3,208      $ 2,950   

Furniture and fixtures

     563        499   

Leasehold improvements

     1,156        1,046   
  

 

 

   

 

 

 
     4,927        4,495   

Less accumulated depreciation and amortization

     (3,521 )     (2,952 )
  

 

 

   

 

 

 
   $ 1,406      $ 1,543