INCOME TAXES - Summary of Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Deferred Tax Assets | ||
| Allowance and reserves | $ 2,079 | $ 1,980 |
| Net operating loss carryforward | 164,540 | 164,343 |
| Tax credit carryforwards | 5,543 | 5,006 |
| Property, plant and equipment | 314 | 217 |
| Accrued warranties | 9 | 13 |
| Other | 12,456 | 12,938 |
| Total deferred tax assets | 184,941 | 184,497 |
| Deferred Tax Liabilities | ||
| Deferred revenue and customer advances, net | (68) | (136) |
| Prepaid expense | (36) | (41) |
| Total deferred tax liabilities | (104) | (177) |
| Total net deferred tax assets | 184,837 | 184,320 |
| Less: Valuation allowance | (184,694) | (183,941) |
| Total net deferred tax assets | $ 143 | $ 379 |
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- References No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Deferred tax assets accrued warranties. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. No definition available.
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- Definition Deferred tax liabilities deferred revenue and customer advances net. No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. No definition available.
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