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PROPERTY AND EQUIPMENT - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Property, Plant and Equipment [Line Items] |  |
Property and equipment at cost | $ 871 | $ 826
Less: accumulated depreciation | (765) | (736)
Property and equipment, net | 106 | 90
Equipment |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, gross | 496 | 490
Tooling |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, gross | $ 210 | 171
Vehicles |  |
Property, Plant and Equipment [Line Items] |  |
Useful life (in years) | 5 years |
Property and equipment, gross | $ 41 | 41
Leasehold Improvements |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, gross | $ 124 | $ 124
Minimum | Equipment |  |
Property, Plant and Equipment [Line Items] |  |
Useful life (in years) | 3 years |
Minimum | Tooling |  |
Property, Plant and Equipment [Line Items] |  |
Useful life (in years) | 2 years |
Maximum | Equipment |  |
Property, Plant and Equipment [Line Items] |  |
Useful life (in years) | 15 years |
Maximum | Tooling |  |
Property, Plant and Equipment [Line Items] |  |
Useful life (in years) | 5 years |

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- Definition Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -SubTopic 20 -Topic 842 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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- Definition Amount, before accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(18)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -SubTopic 20 -Topic 842 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479041/842-20-45-1 + Details
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