Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 40,698	$ 31,944	$ 13,951
Revenue from contract with customer benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	100.00%	100.00%	100.00%
Revenue from contract with customer benchmark | Revenue Recognition Timing Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	100.00%	100.00%	100.00%
Revenue from contract with customer benchmark | Segment Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	100.00%	100.00%	100.00%
Autonomy Solutions
Disaggregation of Revenue [Line Items]
Revenue	$ 24,353	$ 28,497	$ 11,387
Autonomy Solutions | Revenue from contract with customer benchmark | Segment Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	60.00%	89.00%	82.00%
ATS
Disaggregation of Revenue [Line Items]
Revenue	$ 16,345	$ 3,447	$ 2,564
ATS | Revenue from contract with customer benchmark | Segment Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	40.00%	11.00%	18.00%
Recognized at a point in time
Disaggregation of Revenue [Line Items]
Revenue	$ 17,595	$ 8,892	$ 2,639
Recognized at a point in time | Revenue from contract with customer benchmark | Revenue Recognition Timing Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	43.00%	28.00%	19.00%
Recognized over time
Disaggregation of Revenue [Line Items]
Revenue	$ 23,103	$ 23,052	$ 11,312
Recognized over time | Revenue from contract with customer benchmark | Revenue Recognition Timing Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	57.00%	72.00%	81.00%
North America
Disaggregation of Revenue [Line Items]
Revenue	$ 35,032	$ 23,043	$ 4,010
North America | Revenue from contract with customer benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	86.00%	72.00%	29.00%
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue	$ 3,703	$ 2,502	$ 906
Asia Pacific | Revenue from contract with customer benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	9.00%	8.00%	6.00%
Europe and Middle East
Disaggregation of Revenue [Line Items]
Revenue	$ 1,963	$ 6,399	$ 9,035
Europe and Middle East | Revenue from contract with customer benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	5.00%	20.00%	65.00%