v3.25.2
SHARE-BASED COMPENSATION - Schedule of share options activities (Details) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Number of shares    
Outstanding, Beginning balance 13,570,227  
Granted 2,669,523  
Forfeited (1,678,329)  
Outstanding, Ending balance 14,561,421 13,570,227
Number of shares, Vested and expected to vest, Ending balance 14,561,421  
Number of shares, Exercisable, Ending balance 14,489,440  
Weighted average exercise price    
Outstanding, Beginning balance $ 2.89  
Granted 2.89  
Forfeited 2.89  
Outstanding, Ending balance 2.89 $ 2.89
Weighted average exercise price, Vested and expected to vest, Ending balance 2.89  
Weighted average exercise price, Exercisable Ending balance 2.89  
Weighted average grant-date fair value    
Outstanding, Beginning balance 2.31  
Granted 0.82  
Forfeited 2.42  
Outstanding, Ending balance 2.03 $ 2.31
Weighted average grant-date fair value, Vested and expected to vest, Ending balance 2.03  
Weighted average grant-date fair value, Exercisable Ending balance $ 2.02  
Weighted remaining contractual years    
Weighted remaining contractual years 8 years 3 months 10 days 8 years 4 months 20 days
Weighted remaining contractual years, Vested and expected to vest 8 years 3 months 10 days  
Weighted remaining contractual years, Exercisable 8 years 3 months 10 days  
Aggregate intrinsic value    
Outstanding, Beginning balance $ 27,354  
Outstanding, Ending balance   $ 27,354