BASIS OF PRESENTATION, LIQUIDITY - Additional Information (Details) - USD ($) |
12 Months Ended | |||
|---|---|---|---|---|
Jun. 28, 2022 |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | ||||
| Accumulated deficit | $ 1,267,378,000 | $ 1,259,428,000 | ||
| Net cash inflow (used) from operations | (8,821,000) | (4,457,000) | $ (4,478,000) | |
| Net income (loss) attributable to UTStarcom Holdings Corp. | (7,950,000) | (4,368,000) | (3,851,000) | |
| Cash and cash equivalents | 33,814,000 | 43,913,000 | $ 49,968,000 | |
| Reverse split stock | one-for-four | |||
| Subsidiaries | China | ||||
| Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] | ||||
| Cash and cash equivalents | 10,000,000 | $ 17,200,000 | ||
| Accumulated profit determined in accordance with accounting standards of a particular country that can be paid as dividends | $ 0 | |||
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- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated undistributed earnings (deficit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Represents accumulated profit determined in accordance with accounting standards of a particular country that can be paid as dividends. No definition available.
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