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Stockholders' Equity - Schedule of Assumptions Used to Estimate Fair Value of Stock Option Grants (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Share-Based Payment Arrangement [Abstract]        
Risk-free interest rate 3.20% 1.10% 2.00% 0.80%
Expected volatility 97.00% 89.10% 99.80% 89.60%
Expected term (in years) 5 years 10 months 24 days 6 years 6 years 1 month 6 days 6 years 2 months 12 days