v3.26.1
Stock-Based Compensation - Schedule of Stock Options Subject to Service Conditions (Details) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Service Option        
Number Outstanding        
Outstanding at beginning of period (in shares) 17,216,957 6,876,345 6,876,345  
Granted (in shares) 4,761,000 3,600,000    
Forfeited (in shares) (561,417) (211,733)    
Expired (in shares) (1,219,166) (80,263)    
Outstanding at end of period (in shares) 20,197,374 10,184,349 17,216,957 6,876,345
Vested and exercisable (in shares) 5,329,017 5,116,947    
Weighted-Average Exercise Price        
Outstanding at beginning of period (in dollars per share) $ 1.11 $ 1.61 $ 1.61  
Granted (in dollars per share) 1.04 0.47    
Forfeited (in dollars per share) 1.02 1.00    
Expired (in dollars per share) 2.40 2.71    
Outstanding at end of period (in dollars per share) 1.02 1.21 $ 1.11 $ 1.61
Vested and exercisable (in dollars per share) $ 1.20 $ 1.78    
Stock Options Additional Disclosures        
Aggregate intrinsic value, Outstanding $ 1,956 $ 1,075 $ 1,576 $ 205
Aggregate intrinsic value, Vested and exercisable $ 753 $ 0    
Weighted average remaining contractual life, Outstanding 4 years 9 months 18 days 3 years 3 months 18 days 3 years 9 months 18 days 2 years 9 months 18 days
Weighted average remaining contractual life, Vested and exercisable 2 years 4 months 24 days 1 year 10 months 24 days    
Service Option | Inducement Stock Options        
Number Outstanding        
Granted (in shares) 800,000 3,600,000    
Outstanding at end of period (in shares) 4,400,000      
Performance Option        
Number Outstanding        
Outstanding at beginning of period (in shares) 1,900,000 0 0  
Granted (in shares)   1,900,000    
Outstanding at end of period (in shares) 1,900,000 1,900,000 1,900,000 0
Vested and exercisable (in shares) 0 0    
Weighted-Average Exercise Price        
Outstanding at beginning of period (in dollars per share) $ 0.42 $ 0 $ 0  
Granted (in dollars per share)   0.42    
Outstanding at end of period (in dollars per share) 0.42 0.42 $ 0.42 $ 0
Vested and exercisable (in dollars per share) $ 0 $ 0    
Stock Options Additional Disclosures        
Aggregate intrinsic value, Outstanding $ 1,012 $ 670 $ 868 $ 0
Aggregate intrinsic value, Vested and exercisable $ 0 $ 0    
Weighted average remaining contractual life, Outstanding 4 years 4 years 10 months 24 days 4 years 4 months 24 days 0 years
Weighted average remaining contractual life, Vested and exercisable 0 years 0 years    
Performance Option | Inducement Stock Options        
Number Outstanding        
Granted (in shares) 1,900,000 1,900,000