PROPERTY AND EQUIPMENT - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Property, Plant, and Equipment [Line Items]
Property and equipment at cost	$ 871	$ 871
Less: accumulated depreciation	(790)	(774)
Property and equipment, net	81	97
Equipment
Property, Plant, and Equipment [Line Items]
Property and equipment, gross	$ 496	496
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	$ 210	210
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	$ 124

Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

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