Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Stock options activity (Details)

v3.21.2
Stock Based Compensation - Stock options activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Outstanding as of December 31, 2020   18,804,634    
Granted   6,474,175    
Exercised   (2,399,609)    
Exercised upon settlement of related party note   (1,469,999)    
Forfeited   (98,524)    
Outstanding as of September 30, 2021 21,310,677 21,310,677   18,804,634
Vested and expected to vest 21,310,677 21,310,677    
Options exercisable 9,615,616 9,615,616    
Weighted Average Exercise Price        
Outstanding as of December 31, 2020   $ 0.36    
Granted   0.43    
Exercised   0.33    
Exercised upon settlement of related party note   0.24    
Forfeited   0.41    
Outstanding as of September 30, 2021 $ 0.40 0.40   $ 0.36
Vested and expected to vest 0.40 0.40    
Options exercisable $ 0.37 $ 0.37    
Weighted Average Remaining Contractual Term (in years)        
Outstanding as of December 31, 2020   8 years 2 months 8 days   7 years 6 months 25 days
Granted   9 years 3 months 10 days    
Exercised   5 years 7 months 13 days    
Exercised upon settlement of related party note   5 years 11 months 15 days    
Outstanding as of September 30, 2021   8 years 2 months 8 days   7 years 6 months 25 days
Vested and expected to vest   8 years 2 months 8 days    
Options exercisable   7 years 2 months 26 days    
Aggregate Intrinsic Value        
Outstanding as of December 31, 2020   $ 1,054    
Granted   49,284    
Exercised $ 2,400 18,508 $ 100  
Exercised upon settlement of related party note   272    
Forfeited 752 752    
Outstanding as of September 30, 2021 162,662 162,662   $ 1,054
Vested and expected to vest 162,662 162,662    
Options exercisable $ 73,813 $ 73,813