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LEASE LIABILITIES (Schedule of Lease Payments Not Recognised as Liability) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure of finance lease liabilities [Abstract]    
Short term leases $ 130
Leases of low value assets
Variable lease payments
Lease payments not recognised as a liability $ 130