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INCOME TAXES (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement [Line Items]      
Deferred income tax expense (recovery) $ (1,569) $ (960) $ (645)
Income Tax Expense [Member]      
Statement [Line Items]      
Current income tax expense 161 327 1,052
Deferred income tax expense (recovery) (1,569) (960) (645)
Total income tax expense (recovery) $ (1,408) $ (633) $ 407