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Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2015
Stock-Based Compensation  
Summary of stock option compensation expense recognized in the consolidated statements of operations

 

 

 

 

Three Months Ended
March 31,

 

 

 

2015

 

2014

 

Research and development

 

$

231,524 

 

$

 

General and administrative

 

373,903 

 

149,885 

 

Total stock-based compensation expense

 

$

605,427 

 

$

149,885