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

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For the asset that is reclassified back to held and use from held-for-sale, the depreciation expense recognized when the asset is reclassified. This represents the difference between the carrying value at the time the decision to reclassify is made and the carrying amount that the asset would have had if it had never been classified as held for sale (including consideration of depreciation expense).

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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.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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

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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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Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 18,954		$ 17,191
Less: Accumulated depreciation	6,861		6,101
Property and equipment, net	12,093		11,090
Depreciation expense on reclassified assets	$ 760	$ 210
Production tooling
Property, Plant and Equipment [Line Items]
Useful life (in years)	4 years
Property and equipment, gross	$ 10,661		10,158
Lab equipment
Property, Plant and Equipment [Line Items]
Useful life (in years)	4 years
Property and equipment, gross	$ 4,654		4,489
Office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 3,096		1,893
Office equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful life (in years)	3 years
Office equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful life (in years)	7 years
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 543		395
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 0		$ 256