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Cash and Cash Equivalents
 3 Months Ended
Mar. 31, 2024
Cash and Cash Equivalents [Abstract]  
Cash and Cash Equivalents Cash and Cash Equivalents
Cash and cash equivalents were held in the following geographic regions:
(In thousands)March 31, 2024December 31, 2023
North America$3,303 $8,460 
People's Republic of China ("PRC")6,93011,102
Asia (excluding the PRC)2,2102,427
Europe2,5848,145
South America11,88712,617
Total cash and cash equivalents
$26,914 $42,751