SHARE-BASED COMPENSATION - Compensation expenses (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Share based compensation expense | $ 2,274 | $ 31,930 |
| Research and development expenses | ||
| Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Share based compensation expense | 950 | 16,241 |
| Selling and marketing expenses | ||
| Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Share based compensation expense | 176 | 1,247 |
| General and administrative expenses | ||
| Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Share based compensation expense | $ 1,148 | $ 14,442 |