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Warrants (Tables)
 3 Months Ended
Sep. 30, 2020
Warrants Tables Abstract  
Significant assumptions in valuing the warrants issued
   Warrants Issued Three Months Ended September 30, 2020
Expected volatility   100%
Equivalent term (years)   1 
Risk-free rate   —   
Dividend yield   0.00%
Warrant activity
  

Number of Warrants 

 

Weighted Average Exercise Price 

 

Weighted Average Remaining Contractual Life in Years 

Outstanding June 30, 2020   22,884,538   $3.06    2.00 
Warrants issued   923,000    —        
Warrants expired   (8,361)   —        
Outstanding September 30, 2020   23,799,177   $2.98    1.47