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Description of Business and Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of antidilutive securities excluded from computation of diluted net loss per share
   September 30,
2018
   September 30,
2017
 
Options   7,668,231    6,156,361 
Warrants   56,013,474    27,220,388 
Total   63,681,705    33,376,749 
Schedule of impacts to consolidated statements of cash flows
   Previously Reported   Adjustment   As Revised 
Net cash provided by (used in) investing activities  $(379,621)  $356,141   $(23,480)
Summary of cash and cash equivalent and restricted cash

   September 30,
2018
  December 31,
2017
  September 30,
2017
Cash and cash equivalents  $14,805,472   $17,399,636   $20,541,955 
Restricted cash – current   40,055    -      
Restricted cash   390,940    390,940    390,874 
Cash and cash equivalent and restricted cash  $15,236,467   $17,790,576   $20,932,829