v3.26.1
Stock-Based Compensation - Schedule of Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2024
Dec. 31, 2025
Stock Options and PBSOs      
Outstanding, Beginning Balance (in shares) 12,511,072    
Granted (in shares) 3,472,927    
Exercised (in shares) (15,456)    
Cancelled or forfeited (in shares) (174,210)    
Outstanding, Ending Balance (in shares) 15,794,333    
Exercisable (in shares) 8,359,997    
Vested and expected to vest (in shares) 15,794,333    
Weighted- Average Exercise Price      
Outstanding, Beginning Balance (in dollars per share) $ 5.49    
Granted (in dollars per share) 1.80    
Exercised (in dollars per share) 1.34    
Cancelled or forfeited (in dollars per share) 3.49    
Outstanding, Ending Balance (in dollars per share) 4.70    
Exercisable (in dollars per share) 6.66    
Vested and expected to vest (in dollars per share) $ 4.70    
Weighted- Average Remaining Contractual Term (years)      
Outstanding (in years) 7 years 7 months 6 days 7 years 7 months 6 days  
Exercisable (in years) 6 years 6 months    
Vested and expected to vest (in years) 7 years 7 months 6 days    
Aggregate Intrinsic Value (in thousands)      
Outstanding $ 913   $ 466
Exercisable 375    
Vested and expected to vest $ 913