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Segment Information (Details 3) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Major customer disclosure |  |  |
Revenue | $ 328,304 | $ 246,322 | $ 227,603
Property, plant and equipment, net | 56,035 | 57,693 |
USA |  |  |
Major customer disclosure |  |  |
Revenue | 211,419 | 137,614 | 134,526
Property, plant and equipment, net | 49,800 | 53,200 |
Singapore |  |  |
Major customer disclosure |  |  |
Revenue | 39,798 | 28,034 | 21,751
Asia-Other |  |  |
Major customer disclosure |  |  |
Revenue | 28,949 | 26,249 | 14,356
Taiwan |  |  |
Major customer disclosure |  |  |
Revenue | 23,953 | 21,803 | 24,118
Japan |  |  |
Major customer disclosure |  |  |
Revenue | 14,894 | 20,437 | 15,453
South Korea |  |  |
Major customer disclosure |  |  |
Revenue | 6,007 | 3,664 | 3,583
Europe |  |  |
Major customer disclosure |  |  |
Revenue | 3,165 | 7,359 | 10,262
Canada |  |  |
Major customer disclosure |  |  |
Revenue | 119 | 1,162 | $ 3,554
India |  |  |
Major customer disclosure |  |  |
Property, plant and equipment, net | 3,200 | 3,300 |
Other foreign locations |  |  |
Major customer disclosure |  |  |
Property, plant and equipment, net | $ 3,000 | $ 1,200 |

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