Annual report [Section 13 and 15(d), not S-K Item 405]

SHARE-BASED COMPENSATION - Stock Options - Weighted-average key assumptions (Details)

v3.26.1
SHARE-BASED COMPENSATION - Stock Options - Weighted-average key assumptions (Details) - $ / shares
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
STOCKHOLDERS' EQUITY    
Risk-free interest rate 4.06%  
Expected volatility 94.69%  
Expected term (years) 5 years 9 months 7 days  
Expected dividend yield 0.00%  
Weighted average grant date fair value $ 4.88 $ 3.82