XML 67 R34.htm IDEA: XBRL DOCUMENT v3.22.1
Stock-Based Compensation - Schedule of Assumptions Used to Estimate Fair Value of Stock Options and Cancelled Options (Details) - Stock Options
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Risk-free interest rate 1.91% 0.64%
Expected term in years 6 years 1 month 6 days 6 years 1 month 6 days
Expected volatility 76.00% 75.00%