v3.26.1
Convertible Preferred Stock and Stockholders' Equity - Weighted average assumptions used in the Black-Scholes option pricing model (Details) - Employee And Non Employee Stock Option
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Weighted-average assumptions to determine fair value of stock options    
Risk-free interest rate 3.90% 4.40%
Expected volatility 93.90% 90.20%
Expected term (in years) 6 years 6 years 2 months 12 days
Expected dividend yield 0.00% 0.00%