SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Summary of Assets Measured at Fair Value on Recurring Basis) (Details) - Recurring - USD ($) $ in Thousands |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|
| SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | ||
| Short-term investments | $ 106,520 | $ 108,805 |
| Investments accounted for at fair value | 34,471 | 24,117 |
| Quoted Prices in Active Markets for Identical Assets (Level 1) | ||
| SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | ||
| Investments accounted for at fair value | 3,260 | 24,117 |
| Significant Other Observable Inputs (Level 2) | ||
| SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | ||
| Short-term investments | 106,520 | $ 108,805 |
| Unobservable Inputs (Level 3) | ||
| SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | ||
| Investments accounted for at fair value | $ 31,211 |