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BASIS OF PRESENTATION, LIQUIDITY - Additional Information (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Jun. 28, 2022 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Net income (loss) attributable to UTStarcom Holdings Corp. |  | $ (4,368,000) | $ (3,851,000) | $ (5,002,000) |
Accumulated deficit |  | 1,259,428,000 | 1,255,060,000 |  |
Net cash inflow (used) from operations |  | (4,457,000) | (4,478,000) | $ 7,277,000 |
Cash and cash equivalents |  | 43,913,000 | 49,968,000 |  |
Reverse split stock | one-for-four |  |  |  | one-for-four
Subsidiaries | China |  |  |  |  |
Cash and cash equivalents |  | 17,200,000 | $ 15,300,000 |  |
Accumulated profit determined in accordance with accounting standards of a particular country that can be paid as dividends |  | $ 0 |  |  |

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