Balance Sheet Components - Schedule of Property Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 21,257	$ 20,794
Less: Accumulated depreciation	(12,289)	(10,740)
Property and equipment, net	$ 8,968	10,054
Machinery and equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Property, plant and equipment, gross	$ 8,593	8,404
Computer equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Property, plant and equipment, gross	$ 504	498
Automotive and vehicle hardware
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	5 years
Property, plant and equipment, gross	$ 93	93
Software
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Property, plant and equipment, gross	$ 104	104
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	7 years
Property, plant and equipment, gross	$ 730	730
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	9,310	9,265
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,923	$ 1,700