General form of registration statement for all companies including face-amount certificate companies

SHARE CAPITAL - Stock Options Outstanding and Exercisable (Details)

v3.21.4
SHARE CAPITAL - Stock Options Outstanding and Exercisable (Details) - Stock options - $ / shares
 9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 1,014,100 3,743,000 3,186,000 3,335,000
Weighted Average Remaining life (in years) 3 years 7 months 13 days 4 years 4 years 7 months 13 days  
Weighted average exercise price of options outstanding (in dollars per share) $ 5.16 $ 1.05 $ 1.12 $ 0.48
Number Exercisable (in shares) 636,008 2,352,601    
Exercise Price exercisable (in dollars per share) $ 4.93 $ 0.95    
Range One [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 200,000 1,000,000    
Weighted Average Remaining life (in years) 3 years 10 months 24 days 4 years 7 months 24 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 0.25 $ 0.05    
Number Exercisable (in shares) 200,000 1,000,000    
Exercise Price exercisable (in dollars per share) $ 0.25 $ 0.05    
Range Two [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 12,000 60,000    
Weighted Average Remaining life (in years) 1 year 25 days 1 year 9 months 25 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 14.00 $ 2.80    
Number Exercisable (in shares) 12,000 60,000    
Exercise Price exercisable (in dollars per share) $ 14.00 $ 2.80    
Range Three [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 15,000 75,000    
Weighted Average Remaining life (in years) 6 years 3 months 18 days 7 years 18 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 9.00 $ 1.80    
Number Exercisable (in shares) 15,000 75,000    
Exercise Price exercisable (in dollars per share) $ 9.00 $ 1.80    
Range Four [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 85,000 425,000    
Weighted Average Remaining life (in years) 2 years 2 years 9 months    
Weighted average exercise price of options outstanding (in dollars per share) $ 9.00 $ 1.80    
Number Exercisable (in shares) 73,667 311,667    
Exercise Price exercisable (in dollars per share) $ 9.00 $ 1.80    
Range Five [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 146,800 884,000    
Weighted Average Remaining life (in years) 2 years 3 months 18 days 3 years 14 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 7.80 $ 1.56    
Number Exercisable (in shares) 127,227 530,401    
Exercise Price exercisable (in dollars per share) $ 7.80 $ 1.56    
Range Six [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 81,300 434,000    
Weighted Average Remaining life (in years) 3 years 3 days 3 years 9 months 3 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 6.40 $ 1.28    
Number Exercisable (in shares) 48,780 202,533    
Exercise Price exercisable (in dollars per share) $ 6.40 $ 1.28    
Range Seven [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 40,000 300,000    
Weighted Average Remaining life (in years) 3 years 10 months 28 days 4 years 7 months 28 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 4.50 $ 0.90    
Number Exercisable (in shares) 18,667 60,000    
Exercise Price exercisable (in dollars per share) $ 4.50 $ 0.90    
Range Eight [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 93,000 565,000    
Weighted Average Remaining life (in years) 4 years 2 months 12 days 4 years 11 months 12 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 4.85 $ 0.97    
Number Exercisable (in shares) 31,000 113,000    
Exercise Price exercisable (in dollars per share) $ 4.85 $ 0.97    
Range Nine [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 311,000      
Weighted Average Remaining life (in years) 4 years 4 months 2 days      
Weighted average exercise price of options outstanding (in dollars per share) $ 5.30      
Number Exercisable (in shares) 103,667      
Exercise Price exercisable (in dollars per share) $ 5.30      
Range Ten [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 30,000      
Weighted Average Remaining life (in years) 4 years 6 months 14 days      
Weighted average exercise price of options outstanding (in dollars per share) $ 5.60      
Number Exercisable (in shares) 6,000      
Exercise Price exercisable (in dollars per share) $ 5.60