Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS EQUITY (DEFICIT) (Details 1)

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STOCKHOLDERS EQUITY (DEFICIT) (Details 1) - 2019 Stock Incentive Plan - $ / shares
9 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Number of options outstanding 781,250 606,250 362,500
Weighted average remaining contractual life (in years) 7 years 1 month 6 days    
Number of exercisable options 623,438    
Weighted average exercise price exercisable $ 9.35    
8.00-8.99      
Number of options outstanding 375,000    
Weighted average remaining contractual life (in years) 7 years 10 months 6 days    
Number of exercisable options 370,313    
Weighted average exercise price exercisable $ 8.04    
Exercise price range 8.00-8.99    
9.00-9.99      
Number of options outstanding 25,000    
Weighted average remaining contractual life (in years) 3 years 10 months 17 days    
Number of exercisable options 25,000    
Weighted average exercise price exercisable $ 9.60    
Exercise price range 9.00-9.99    
11.00-11.99      
Number of options outstanding 187,500    
Weighted average remaining contractual life (in years) 9 years 2 months 8 days    
Number of exercisable options 78,125    
Weighted average exercise price exercisable $ 11.25    
Exercise price range 11.00-11.99    
12.00-12.99      
Number of options outstanding 193,750    
Weighted average remaining contractual life (in years) 4 years 14 days    
Number of exercisable options 150,000    
Weighted average exercise price exercisable $ 12.67    
Exercise price range 12.00-12.99