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Cash, Cash Equivalents, and Term Deposit (Tables) | 6 Months Ended
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Jun. 30, 2022
Cash and Cash Equivalents [Abstract] |
Cash and Cash Equivalents by Geographic Region | Cash and cash equivalents were held in the following geographic regions:
(In thousands) | June 30, 2022 |  | December 31, 2021
North America | $ | 4,466 |  |  | $ | 6,430 |
People's Republic of China ("PRC") | 15,328 |  | 16,000
Asia (excluding the PRC) | 11,786 |  | 11,798
Europe | 11,756 |  | 17,604
South America | 2,794 |  | 8,981
Total cash and cash equivalents | $ | 46,130 |  |  | $ | 60,813 |

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- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
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