OTHER INCOME (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
OTHER INCOME
Unrealized and realized (loss) gain on investments (note 5)	$ (898)	$ 827
Foreign currency gain	1,808	163
Other income, net	27	57
Total other income	$ 937	$ 1,047

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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