XML 79 R57.htm IDEA: XBRL DOCUMENT v3.22.0.1
Stock-Based Compensation - Summary of Stock Option Activity (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Shares Available for Grant    
Shares Available for Grant, Beginning Balance 4,270,764  
Shares Available for Grant, Shares Added 2,942,007  
Shares Available for Grant, Granted (3,629,461)  
Shares Available for Grant, Canceled 1,730,141  
Shares Available for Grant, Ending Balance 5,313,451 4,270,764
Outstanding Options    
Outstanding options, Beginning Balance 7,475,472  
Outstanding options, Granted 3,062,738  
Outstanding options, Exercised (430,047)  
Outstanding options, Canceled (1,441,208)  
Outstanding options, Ending Balance 8,666,955 7,475,472
Outstanding options, Vested and exercisable at December 31, 2021 4,204,083  
Outstanding options. Vested and expected to vest at December 31, 2021 8,666,955  
Weighted-Average Exercise Price    
Weighted-Average Exercise Price, Beginning Balance $ 6.88  
Weighted-Average Exercise Price, Options granted 4.92  
Weighted-Average Exercise Price, Options exercised 3.64  
Weighted-Average Exercise Price, Options canceled 8.70  
Weighted-Average Exercise Price, Ending Balance 6.05 $ 6.88
Weighted-Average Exercise Price, Vested exercisable as of December 31, 2021 6.55  
Weighted-Average Exercise Price, Options vested and expected to vest as of December 31, 2021 $ 6.05  
Weighted-Average Remaining Contract Term    
Balance at December 31, 2021 7 years 8 months 12 days  
Exercisable, weighted average remaining contractual term (Year) 6 years 4 months 24 days  
Options vested or expected to vest at end of period, weighted average remaining contractual term (Year) 7 years 8 months 12 days  
Aggregate Intrinsic Value    
Exercisable, aggregate intrinsic value $ 0 $ 4,100,000