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OTHER INCOME - Summary of Other Income (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
OTHER INCOME |  |
COVID-19 Relief | $ 1,111 |
Unrealized and realized (loss) on investments (Note 5) |  | $ (898)
Foreign currency (loss) gain | 291 | 1,808
Other income, net | 10 | 27
Total other income | $ 1,412 | $ 937

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- Definition The amount of unusual or infrequent item arising out of COVID relief. + References No definition available. + Details
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