XML 69 R58.htm IDEA: XBRL DOCUMENT v3.21.2
Stockholders' Equity - Restricted Stock Units Schedule (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Restricted stock units, nonvested beginning of period 970,349 366,812  
Restricted stock units, nonvested grants in period 134,800 930,145  
Restricted stock units, nonvested vested in period (673,201) (172,441)  
Restricted stock units, nonvested forfeited in period (3,336) (154,167)  
Restricted stock units, nonvested ending of period 428,612 970,349 366,812
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Restricted stock units, nonvested weighted average grant date fair value $ 0.39 $ 0.42  
Restricted stock units, nonvested grants in period, weighted average grant date fair value 3.53 0.37  
Restricted stock units , nonvested vested in period, weighted average grant date fair value 0.73 0.41  
Restricted stock units, nonvested forfeited in period, weighted average grant date fair value 1.46 0.30  
Restricted stock units, nonvested weighted average grant date fair value $ 0.84 $ 0.39 $ 0.42
Restricted stock units, nonvested weighted average remaining contractual terms 1 year 4 months 24 days 1 year 2 months 12 days 3 years 2 months 12 days