XML 52 R41.htm IDEA: XBRL DOCUMENT v3.21.2
Stock Options (Tables)
6 Months Ended
Jun. 30, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of assumptions used
        
   March 31, 2021   June 30, 2021 
Exercise Price  $3.06   $1.98 
Dividend Yield   0%    0% 
Volatility   143%    101% 
Risk-free interest rate   0.41%    0.90% 
Expected life of options   5.0 years    5.0 years 
Schedule of stock option activity
            
   Number of Shares   Weighted- Average Remaining Contractual Life   Weighted- Average Exercise Price 
Outstanding at December 31, 2020   9,116,176    1.69   $1.69 
Granted   933,636    4.70   $2.74 
Exercised          $ 
Forfeited   150,000    4.26   $2.82 
Expired          $ 
Outstanding at June 30, 2021   9,899,812    8.55   $1.76 
                
Unvested at June 30, 2021   3,280,303        $2.32 
Vested and exercisable June 30, 2021   6,619,509        $1.48