Quarterly report pursuant to Section 13 or 15(d)

Schedule of Stock Options Roll Forward (Details) (Parenthetical)

v3.21.2
Schedule of Stock Options Roll Forward (Details) (Parenthetical) - $ / shares
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Stock Option Outstanding [Member]    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Share-based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit $ 2.79 $ 2.79
Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit 7.50 $ 7.05
Stock Option Exercisable [Member]    
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]    
Share-based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit 2.79  
Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit $ 7.29