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LOANS AND BORROWINGS - Schedule of Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Debt Disclosure [Abstract]      
Convertible debentures $ 0   $ 16,382
Notes payable 0 $ 484  
Total current loans and borrowings $ 0 $ 16,866