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RELATED PARTY TRANSACTIONS AND BALANCES (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure Of Transactions Between Related Parties      
Salaries, benefits, and consulting fees $ 956 $ 860 $ 1,277
Share-based payments 531 1,718 891
Total Key management personnel compensation $ 1,487 $ 2,578 $ 2,168