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Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2015
Property and Equipment [Abstract]  
Schedule of Property and Equipment
Property and equipment consists of the following (in thousands):

 
 
December 31,
 
 
 
2015
  
2014
 
Computer equipment
 
$
3,069
  
$
2,596
 
Software
  
1,801
   
1,683
 
Furniture and office equipment
  
919
   
751
 
Lab equipment
  
17,306
   
13,917
 
Leasehold improvements
  
11,936
   
5,193
 
Property and equipment
  
35,031
   
24,140
 
Less accumulated depreciation
  
(20,190
)
  
(17,355
)
Property and equipment, net
 
$
14,841
  
$
6,785