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Stock-Based Compensation Plan (Tables)
 12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Summary of Stock Option Plan Activity
A summary of activity for the years ended December 31, 2021, 2020, and 2019 for the 2011 Stock Option Plan is as follows:
Number of
Stock Options
Weighted Average
Exercise Price
Balance (Balance January 1, 2019)1,647,650 $0.60
Granted— —
Forfeited(76,445)0.67
Balance (December 31, 2019)1,571,205 0.59
Granted— —
Forfeited— —
Balance (December 31, 2020)1,571,205 0.59
Granted— —
Exercised(310,877)0.57
Forfeited— —
Balance (December 31, 2021)1,260,328 0.56
Vested (as of December 31, 2021)1,260,328 $0.56

The following summarizes certain information about stock options vested and expected to vest as of December 31, 2021 related to the 2011 Stock Option Plan:
Number of
Stock Options
Weighted Average
Remaining
Contractual Life
Weighted Average
Exercise Price
Outstanding1,260,328 0.67 years$0.56
Exercisable1,260,328 0.67 years$0.56
A summary of activity for the years ended December 31, 2021, 2020, and 2019 for the 2017 Stock Option Plan is as follows:
Number of Stock Options
Weighted Averaged
Exercise Price
Balance (Balance January 1, 2019)2,599,669 $0.92
Granted1,569,676 0.92
Forfeited(1,323,787)0.92
Balance (December 31, 2019)2,845,557 0.92
Granted1,116,101 0.92
Forfeited— —
Balance (December 31, 2020)3,961,658 0.92
Granted— —
Forfeited(25,482)0.92
Balance (December 31, 2021)3,936,176 0.92
Vested (as of December 31, 2021)
3,538,672 $0.92
A summary of activity for the year ended December 31, 2021 for the options associated with the 2020 Incentive Award Plan is as follows:
Balance (Number of Units
Weighted Averaged
Exercise Price
Balance (December 31, 2020)— $— 
Granted1,490,519 11.02 
Forfeited(21,222)4.31 
Balance (December 31, 2021)
1,469,297 $11.12 
Exercisable— $— 
Summary of Options Vested and Expected to Vest
The following summarizes certain information about stock options vested and expected to vest as of December 31, 2021 related to the 2017 Stock Option Plan:
Number of
Stock Options
Weighted Average
Remaining
Contractual Life
Weighted Average
Exercise Price
Outstanding3,936,176 7.55 years$0.92
Exercisable3,538,672 7.43 years$0.92
The following summarizes certain information about stock options vested and expected to vest as of December 31, 2021 related to the 2020 Stock Option Plan:
Number of
Stock Options
Weighted Average
Remaining
Contractual Life
Weighted Average
Exercise Price
Outstanding1,469,297 8.96 years$11.12
Exercisable— — $—
Schedule of Inputs Used
The inputs used for the 2017 Stock Option Plan were as follows:
Balance (Expected volatility)80.00 %
Expected dividend yield— %
Expected term (in years)
3.5 - 4.7 years
Risk-free interest rate
0.32% - 0.45%
The inputs used for the 2020 Incentive Award Plan options were as follows for the year ended December 31, 2021:

Balance (Expected volatility)
80% - 85%
Expected dividend yield— %
Expected term (in years)
6.25 years
Risk-free interest rate
0.62% - 1.34%
The inputs used to value the Earnout RSUs were as follows at January 21, 2021:

Expected volatility80.00 %
Starting stock price$11.31 
Expected term (in years)5 years
Risk-free interest rate0.45 %
Earnout hurdle
$12.50-$15.00
Summary of Restricted Stock Unit Activity A summary of activity for the year ended December 31, 2021 for the service-based restricted stock units associated with the 2020 Incentive Award Plan is as follows:
Number of Units
Weighted Average Grant Date Fair Value
Balance (December 31, 2020)— $— 
Granted710,993 5.58 
Forfeited(18,884)4.32 
Vested (as of December 31, 2021)(94,370)5.87 
Balance (December 31, 2021)
597,739 $5.57 
A summary of activity for the year ended December 31, 2021 for the Earnout RSUs is as follows:

Number of Units
Weighted Average
Grant Date Fair Value
Balance (December 31, 2020)— $— 
Granted640,421 10.70 
Forfeited(19,221)10.70 
Balance (December 31, 2021)
621,200 $10.70