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Property and Equipment - Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Major classifications of property and equipment and estimated useful lives
Property and equipment, gross	$ 1,762	$ 1,374
Accumulated depreciation and amortization	(1,232)	(991)
Property and equipment, net	530	383
Office furniture and equipment
Major classifications of property and equipment and estimated useful lives
Property and equipment, gross	70	66
Leasehold improvements
Major classifications of property and equipment and estimated useful lives
Property and equipment, gross	193	121
Vehicles
Major classifications of property and equipment and estimated useful lives
Property and equipment, gross	57	41
Manufacturing and test equipment
Major classifications of property and equipment and estimated useful lives
Property and equipment, gross	$ 1,442	$ 1,146
Minimum
Major classifications of property and equipment and estimated useful lives
Property and equipment, useful life (in years)	2 years
Minimum | Office furniture and equipment
Major classifications of property and equipment and estimated useful lives
Property and equipment, useful life (in years)	3 years
Minimum | Leasehold improvements
Major classifications of property and equipment and estimated useful lives
Property and equipment, useful life (in years)	2 years
Minimum | Vehicles
Major classifications of property and equipment and estimated useful lives
Property and equipment, useful life (in years)	5 years
Minimum | Manufacturing and test equipment
Major classifications of property and equipment and estimated useful lives
Property and equipment, useful life (in years)	2 years
Maximum
Major classifications of property and equipment and estimated useful lives
Property and equipment, useful life (in years)	10 years
Maximum | Office furniture and equipment
Major classifications of property and equipment and estimated useful lives
Property and equipment, useful life (in years)	10 years
Maximum | Leasehold improvements
Major classifications of property and equipment and estimated useful lives
Property and equipment, useful life (in years)	7 years
Maximum | Vehicles
Major classifications of property and equipment and estimated useful lives
Property and equipment, useful life (in years)	10 years
Maximum | Manufacturing and test equipment
Major classifications of property and equipment and estimated useful lives
Property and equipment, useful life (in years)	10 years

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

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-Topic 944
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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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