XML 32 R21.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stock-Based Awards (Tables)
6 Months Ended
Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Stock-Based Compensation Expense Related to Stock Options and Restricted Common Stock

The Company recorded stock-based compensation expense related to stock options and restricted common stock in the following expense categories within its condensed consolidated statements of operations for the three and six months ended June 30, 2018 and 2017 as follows:

 

     Three Months
Ended June 30,
     Six Months Ended
June 30,
 
     2018      2017      2018      2017  
     (in thousands)  

Research and development

   $ 1,664      $ 877      $ 3,236      $ 1,733  

General and administrative

     1,007        1,225        1,901        2,370  
  

 

 

    

 

 

    

 

 

    

 

 

 
   $ 2,671      $ 2,102      $ 5,137      $ 4,103