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Income Tax (Details 1) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income Tax |  |  |
United States | $ (45,723) | $ (37,496) | $ (43,419)
Foreign | (1,552) | (139) | 5,073
Pretax loss | $ (47,275) | $ (37,635) | $ (38,346)

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