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Stockholders' Equity (Tables)
6 Months Ended
Jun. 30, 2017
Equity [Abstract]  
Schedule of Common Stock Shares Reserved for Future Issuance

The Company had reserved shares of common stock for issuance as follows:

 

 

 

June 30,

 

 

December 31,

 

 

 

2017

 

 

2016

 

Options issued and outstanding

 

 

3,107,386

 

 

 

2,977,218

 

Unvested restricted stock units

 

 

366,684

 

 

 

105,529

 

Common stock warrants issued and outstanding

 

 

143,795

 

 

 

217,245

 

Shares available for grant under future stock plans

 

 

4,893,448

 

 

 

4,226,068

 

 

 

 

8,511,313

 

 

 

7,526,060