Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 9,932	$ 6,309	$ 16,787	$ 11,622
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%	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%	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%	100.00%
Autonomy Solutions
Disaggregation of Revenue [Line Items]
Revenue	$ 4,179	$ 5,822	$ 10,077	$ 10,158
Autonomy Solutions | Revenue from contract with customer benchmark | Segment Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	42.00%	92.00%	60.00%	87.00%
ATS
Disaggregation of Revenue [Line Items]
Revenue	$ 5,753	$ 487	$ 6,710	$ 1,464
ATS | Revenue from contract with customer benchmark | Segment Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	58.00%	8.00%	40.00%	13.00%
Recognized at a point in time
Disaggregation of Revenue [Line Items]
Revenue	$ 1,798	$ 1,988	$ 3,339	$ 4,041
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)	18.00%	32.00%	20.00%	35.00%
Recognized over time
Disaggregation of Revenue [Line Items]
Revenue	$ 8,134	$ 4,321	$ 13,448	$ 7,581
Recognized over time | Revenue from contract with customer benchmark | Revenue Recognition Timing Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	82.00%	68.00%	80.00%	65.00%
North America
Disaggregation of Revenue [Line Items]
Revenue	$ 8,716	$ 4,061	$ 13,684	$ 6,600
North America | Revenue from contract with customer benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	88.00%	65.00%	81.00%	57.00%
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenue	$ 932	$ 154	$ 2,792	$ 475
Asia Pacific | Revenue from contract with customer benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	9.00%	2.00%	17.00%	4.00%
Europe and Middle East
Disaggregation of Revenue [Line Items]
Revenue	$ 284	$ 2,094	$ 311	$ 4,547
Europe and Middle East | Revenue from contract with customer benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue (as percent)	3.00%	33.00%	2.00%	39.00%