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

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions (Details)

v3.21.4
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions (Details)
9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]        
Risk-free interest rate 0.78% 0.79% 0.75% 2.34%
Expected life 6 years 6 years 7 months 6 days 6 years 6 months 5 years 10 months 24 days
Expected volatility 134.79% 122.24% 123.71% 128.58%
Dividend yield