Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Assumptions (Details)

v3.22.1
Stock-Based Compensation - Assumptions (Details) - Stock Options - USD ($)
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Volatility 107.25% 76.90%
Expected term (in years) 5 years 9 months 18 days 5 years 7 months 28 days
Risk-free rate 1.47% 0.48%
Expected dividend yield $ 0 $ 0
Weighted average grant date fair value per share (in dollars per share) $ 1.55 $ 1.59