Quarterly report pursuant to Section 13 or 15(d)

Common Stock - Schedule of Assumptions Used to Estimate Fair Value of Stock Options (Details)

v3.21.2
Common Stock - Schedule of Assumptions Used to Estimate Fair Value of Stock Options (Details)
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Risk-free interest rate, minimum 0.63% 0.28%
Risk-free interest rate, maximum 1.55% 1.48%
Expected volatility, minimum 79.00% 70.00%
Expected volatility, maximum 81.00% 79.00%
Expected dividend yield 0.00% 0.00%
Minimum    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Expected term 5 years 6 months 5 years 8 months 12 days
Maximum    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Expected term 6 years 1 month 6 days 6 years 1 month 6 days