v3.26.1
FAIR VALUE MEASUREMENT - Assets and liabilities measured or disclosed at fair value (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2025
Dec. 31, 2024
Assets      
Derivative assets   $ 404 $ 859
Cryptocurrency assets   6,978 9,581
Long-term investments $ 614    
Total Assets   7,382 10,440
Quoted prices in active markets for identical assets (Level 1)      
Assets      
Cryptocurrency assets   6,978 9,581
Total Assets   6,978 9,581
Significant other observable inputs (Level 2)      
Assets      
Derivative assets   404 859
Total Assets   $ 404 $ 859