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PROPERTY AND EQUIPMENT - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Property, Plant and Equipment [Line Items] |  |
Property and equipment at cost | $ 826 | $ 1,461
Less: accumulated depreciation | (736) | (1,349)
Property and equipment, net | $ 90 | 112
Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life (in years) | 2 years |
Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life (in years) | 15 years |
Equipment |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, gross | $ 490 | 1,061
Equipment | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life (in years) | 3 years |
Equipment | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life (in years) | 15 years |
Tooling |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, gross | $ 171 | 190
Tooling | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life (in years) | 2 years |
Tooling | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, useful life (in years) | 5 years |
Vehicles |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, 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 | 141
Construction in progress |  |
Property, Plant and Equipment [Line Items] |  |
Property and equipment, gross | $ 0 | $ 28

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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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