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Revenue (Tables)
 3 Months Ended
Mar. 31, 2022
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue
The following tables present revenue disaggregated by geography of the customer’s shipping location for the three months ended March 31, 2022 and 2021:

Three Months Ended
March 31,
20222021
United States$6,630 $494 
Greater China9,108 6,322 
Latin America1,461 301 
South America412 — 
Rest of Asia Pacific325 — 
Rest of North America— 390 
Europe4,063 607 
Total revenue$21,999 $8,114 
Schedule of Contract Liabilities
The following table presents the liabilities associated with the engineering services contracts as of March 31, 2022 and December 31, 2021:
March 31,
2022		December 31,
2021
Deferred revenue$2,845 $1,840 
Schedules of Customers Accounting for More Than 10% of Total Revenue
As identified below, some of our customers accounted for more than 10% of the Company’s total revenue for the three months ended March 31, 2022 and 2021:

Three Months Ended
March 31,
20222021
Customer A36.0 %61.3 %
Customer B— %12.4 %