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Stock Option and Incentive Plans (Tables)
 9 Months Ended
Sep. 30, 2015
Stock Option and Incentive Plans  
Schedule of total compensation cost recognized for all stock option awards in the statements of operations

Total compensation cost recognized for all stock option awards in the statements of operations is as follows (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

Nine Months Ended

 

 

 

September 30,

 

September 30,

 

 

 

2015

 

2014

 

2015

 

2014

 

Research and development

    

$
179

    

$
35

    

$
436

    

$
39

 

General and administrative

 

 
418

 

 
181

 

 
932

 

 
224

 

Total stock-based compensation expense

 

$
597

 

$
216

 

$
1,368

 

$
263