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Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2020
Accounting Policies [Abstract]  
Schedule of anti-dilutive securities
  Three months ended 
   March 31,
2020
   March 31,
2019
 
Stock options   3,997,856    1,435,810 
Common stock warrants   3,160,715    4,011,944 
Total   7,158,571    5,447,754