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LEASE LIABILITIES AND RIGHT OF USE ASSETS - Lease expenses (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Finance lease expenses:    
Depreciation expense $ 77 $ 56
Interest on lease liabilities 8 6
Total Finance lease expense 85 62
Operating lease expense 304 292
Short-term lease and related expenses 217 155
Total lease expenses $ 606 $ 509