Balance Sheet Components - Schedule of Property Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 35,219	$ 30,182
Less: Accumulated depreciation	(22,355)	(20,018)
Property and equipment, net	$ 12,864	10,164
Machinery and equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Property, plant and equipment, gross	$ 13,688	12,146
Computer equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Property, plant and equipment, gross	$ 1,093	689
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	$ 647	601
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	7 years
Property, plant and equipment, gross	$ 869	845
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	9,099	6,349
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 9,730	$ 9,459