XML 51 R31.htm IDEA: XBRL DOCUMENT v3.3.1.900
Stockholders' Equity (Tables)
12 Months Ended
Dec. 31, 2015
Stockholders Equity Note [Abstract]  
Summary of Number of Shares of Common Stock Reserved

The Company has reserved the following number of shares of common stock at December 31, 2015 and 2014:

 

 

 

As of December 31,

 

 

 

2015

 

 

2014

 

Warrants to purchase common stock

 

 

300,564

 

 

 

128,663

 

Common stock options

 

 

3,995,876

 

 

 

3,561,104

 

Total

 

 

4,296,440

 

 

 

3,689,767