Revenue (Tables)

6 Months Ended

Jun. 30, 2022

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

Total revenue based on the disaggregation criteria described above, as well as revenue by segment, are as follows (in thousands):

	Three Months Ended June 30,
	2022				2021
	Revenue		% of Revenue		Revenue		% of Revenue
Revenue by primary geographical market:
North America	$	8,716	88	%	$	4,061	65	%
Asia Pacific	932		9	%	154		2	%
Europe and Middle East	284		3	%	2,094		33	%
Total	$	9,932	100	%	$	6,309	100	%
Revenue by timing of recognition:
Recognized at a point in time	$	1,798	18	%	$	1,988	32	%
Recognized over time	8,134		82	%	4,321		68	%
Total	$	9,932	100	%	$	6,309	100	%
Revenue by segment:
Autonomy Solutions	$	4,179	42	%	$	5,822	92	%
ATS	5,753		58	%	487		8	%
Total	$	9,932	100	%	$	6,309	100	%

	Six Months Ended June 30,
	2022				2021
	Revenue		% of Revenue		Revenue		% of Revenue
Revenue by primary geographical market:
North America	$	13,684	81	%	$	6,600	57	%
Asia Pacific	2,792		17	%	475		4	%
Europe and Middle East	311		2	%	4,547		39	%
Total	$	16,787	100	%	$	11,622	100	%
Revenue by timing of recognition:
Recognized at a point in time	$	3,339	20	%	$	4,041	35	%
Recognized over time	13,448		80	%	7,581		65	%
Total	$	16,787	100	%	$	11,622	100	%
Revenue by segment:
Autonomy Solutions	$	10,077	60	%	$	10,158	87	%
ATS	6,710		40	%	1,464		13	%
Total	$	16,787	100	%	$	11,622	100	%

Schedule of Opening and Closing Balances of Contract Liabilities and Significant Changes in Contract Liabilities

The significant changes in contract assets balances consisted of the following (in thousands): 

	June 30, 2022		December 31, 2021
Beginning balance	$	9,907	$	—
Amounts billed that were included in the contract assets beginning balance	(1,602)
Revenue recognized for performance obligations that have been satisfied but for which amounts have not been billed	9,992		9,907
Ending balance	$	18,297	$	9,907

The opening and closing balances of contract liabilities were as follows (in thousands):

	June 30, 2022		December 31, 2021
Contract liabilities, current	$	3,665	$	898
Contract liabilities, non-current	33		—
Ending balance	$	3,698	$	898

The significant changes in contract liabilities balances consisted of the following (in thousands): 

	June 30, 2022		December 31, 2021
Beginning balance	$	898	$	2,284
Revenue recognized that was included in the contract liabilities beginning balance	(397)		(1,792)
Net increase due to cash received and not recognized as revenue and billings in excess of revenue recognized during the period	3,197		406
Ending balance	$	3,698	$	898