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Stockholders' Equity (Tables)
 6 Months Ended
Jun. 30, 2015
Equity [Abstract]  
Summary of Reserved Shares of Common Stock for Future Issuance

As of June 30, 2015 and December 31, 2014 based on the authorized shares for each series, the Company has reserved the following shares of common stock for future issuance:

 

 

 

June 30,

 

 

December 31,

 

 

 

2015

 

 

2014

 

Options to purchase common stock

 

 

1,975,620

 

 

 

1,526,346

 

Shares available for future issuance

 

 

1,641,559

 

 

 

1,549,154

 

Total

 

 

3,617,179

 

 

 

3,075,500