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Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2017
Accounting Policies [Abstract]  
Schedule of potentially dilutive securities not included in the calculation of diluted net loss per share because to do so would be anti-dilutive
The following table presents the weighted average number of common share equivalents not included in the calculation of diluted net loss per share due to the anti-dilutive effect of the securities:
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2017
 
2016
 
2017
 
2016
Common stock options

 
255,551

 

 
330,450

Common stock warrants
7,256,368

 
352,441

 
6,855,779

 
611,223

Total
7,256,368

 
607,992

 
6,855,779

 
941,673