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Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2020
Accounting Policies [Abstract]  
Anti-dilutive shares
   

September 30,

2020

   

December 31,

2019

 
Options to purchase common stock     3,403,874       3,449,319  
Warrants to purchase common stock     6,283,590       13,496,924  
Shares issuable upon conversion of notes     -       362,568  
Shares issuable upon conversion of Series A Preferred Stock     218,722       7,285,651  
Shares issuable upon conversion of Series B Preferred Stock     -       355,263  
Potentially dilutive shares excluded     9,906,186       24,949,725