Quarterly report [Sections 13 or 15(d)]

Stock-Based Compensation - Summary of Stock Options Activity (Details)

v3.25.2
Stock-Based Compensation - Summary of Stock Options Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Number of Shares    
Outstanding, beginning balance (in shares) 26,823  
Granted (in shares) 14,950  
Exercised (in shares) 0  
Cancelled (in shares) (130)  
Outstanding, ending balance (in shares) 41,643 26,823
Number of shares, Exercisable (in shares) 17,744  
Number of shares, Vested or expected to vest (in shares) 41,643  
Weighted Average Exercise Price    
Outstanding beginning balance (in dollars per share) $ 0.14  
Granted (in dollars per share) 0.04  
Exercised (in dollars per share) 0  
Cancelled (in dollars per share) 1.58  
Outstanding ending balance (in dollars per share) 0.1 $ 0.14
Weighted average exercise price, Exercisable (in dollars per share) 0.17  
Weighted average exercise price, Vested or expected to vest (in dollars per share) $ 0.1  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]    
Outstanding balance, weighted average remaining contract term (in years) 8 years 6 months 8 years 4 months 24 days
Options exercisable, weighted average remaining contract term (in years) 7 years 7 months 6 days  
Options Vested or expected to vest, weighted average remaining contract term (in years) 8 years 6 months  
Outstanding, aggregate intrinsic value $ 47 $ 0
Options exercisable, aggregate intrinsic value 11  
Options Vested or expected to vest, aggregate intrinsic value $ 47