Quarterly report pursuant to Section 13 or 15(d)

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

v3.23.2
Stock-based Compensation, Weighted Average Assumptions Used in Black-Scholes Option-pricing Model (Details) - 2020 Plan Evergreen Provision [Member] - shares
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Weighted Average Assumptions Used in Black-Scholes Option-pricing Model [Abstract]        
Expected stock price volatility 94.40% 96.20% 95.30% 98.80%
Expected life of options 5 years 9 months 18 days 5 years 8 months 12 days 6 years 1 month 6 days 5 years 10 months 24 days
Expected dividend yield 0.00% 0.00% 0.00% 0.00%
Risk free interest rate 3.70% 3.30% 3.70% 2.10%
Share-based Compensation Arrangement by Share-based Payment Award [Abstract]        
Stock options vested (in shares) 374,757 204,406 620,824 267,103
Stock options forfeited (in shares) 254,966 6,000 254,966 14,288
Former Chief Executive Officer [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Abstract]        
Stock options vested (in shares) 145,418   145,418  
Stock options forfeited (in shares) 249,633   249,633