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Stockholders' Equity (Deficit) (Tables)
 6 Months Ended
Jun. 30, 2020
Federal Home Loan Banks [Abstract]  
Summary of Preferred Stock Allocated to Investors
the Purchase Agreement, Minera del Norte, S.A. de C.V. (the “Lender”). The Purchase Agreement provides for the Company to issue and sell to the Investor shares of the Company’s preferred stock in the amounts set forth in the following table (numbers have been adjusted for the February 2016 reverse stock split):
Convertible Preferred Stock
  
Shares
   
Price Per Share
   
Total
Investment
 
Series
AA-1
   8,427,004  $12.00   $101,124,048
Series
AA-2
   7,223,145  $6.00    43,338,870
      
 
 
 
  
 
15,650,149
     
$
144,462,918