v3.26.1
Stock-Based Compensation - Assumptions (Details)
6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Stock-Based Compensation      
Expected term 5 years 6 months 5 years 3 months 18 days  
Expected stock price volatility (as a percent) 122.00% 112.00%  
Risk-free rate of interest (as a percent) 3.80% 4.50%  
Expected dividend yield (as a percent) 0.00% 0.00%  
OnkosXcel PSU      
Stock-Based Compensation      
Expected term     5 years 9 months 18 days
Expected stock price volatility (as a percent)     97.40%
Risk-free rate of interest (as a percent)     3.60%
Expected dividend yield (as a percent)     0.00%
Employee Stock Option      
Stock-Based Compensation      
Expected dividend yield (as a percent) 0.00%