SHARE-BASED COMPENSATION - Share-based compensation (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
|
| SHARE-BASED COMPENSATION | ||||
| Share-based compensation expense | $ 165 | $ 274 | $ 539 | $ 1,599 |
| Selling and marketing | ||||
| SHARE-BASED COMPENSATION | ||||
| Share-based compensation expense | 30 | 34 | 78 | 116 |
| Research and development | ||||
| SHARE-BASED COMPENSATION | ||||
| Share-based compensation expense | 18 | 85 | 57 | 497 |
| General and administrative | ||||
| SHARE-BASED COMPENSATION | ||||
| Share-based compensation expense | $ 117 | $ 155 | $ 404 | $ 986 |