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Geographic Areas
 12 Months Ended
Dec. 31, 2022
Segment Reporting [Abstract]  
Geographic Areas Geographic AreasThe following table summarizes geographic information for long-lived assets (in thousands):
December 31, 2022December 31, 2021
United States$4,935 $1,997 
Europe2,532 — 
Malaysia673 26,870 
Other97 728 
Total$8,237 $29,595 
Other than the PRC, no other country’s revenues from external customers are significant enough to require separate disclosure. Revenues from external customers in the PRC were $39.1 million, $29.7 million, and $25.0 million million for the years ended December 31, 2022, 2021 and 2020, respectively.