XML 37 R27.htm IDEA: XBRL DOCUMENT v3.4.0.3
Summary of Significant Accounting Policies - Share-based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Stock based compensation    
Stock-based compensation expense $ 548 $ 301
Research and development    
Stock based compensation    
Stock-based compensation expense 172 168
General and administrative    
Stock based compensation    
Stock-based compensation expense $ 376 $ 133