Balance Sheet Components - Schedule of Property Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 35,068	$ 33,651
Less: Accumulated depreciation	(24,555)	(23,423)
Property and equipment, net	$ 10,513	10,228
Machinery and equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Property, plant and equipment, gross	$ 16,527	16,535
Computer equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Property, plant and equipment, gross	$ 1,104	1,104
Automotive and vehicle hardware
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	5 years
Property, plant and equipment, gross	$ 93	22
Software
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Property, plant and equipment, gross	$ 590	593
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	7 years
Property, plant and equipment, gross	$ 945	946
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	4,930	3,572
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 10,879	$ 10,879