Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation, Weighted Average Assumptions Used in Black-Scholes Option-pricing Model (Details)

v3.23.3
Stock-based Compensation, Weighted Average Assumptions Used in Black-Scholes Option-pricing Model (Details) - 2020 Plan Evergreen Provision [Member] - shares
3 Months Ended 9 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Weighted Average Assumptions Used in Black-Scholes Option-pricing Model [Abstract]          
Expected stock price volatility 96.40%   91.20% 95.30% 97.40%
Expected life of options 6 years 1 month 6 days   5 years 4 months 24 days 6 years 1 month 6 days 5 years 9 months 18 days
Expected dividend yield 0.00%   0.00% 0.00% 0.00%
Risk free interest rate 4.20%   3.40% 3.70% 2.30%
Share-based Compensation Arrangement by Share-based Payment Award [Abstract]          
Stock options vested (in shares) 94,347   89,623 715,171 356,726
Stock options forfeited (in shares) 5,267   13,500 260,233 27,788
Former Chief Executive Officer [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Abstract]          
Stock options vested (in shares)   145,418      
Stock options forfeited (in shares)   249,633