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Compensation of Key Management Personnel (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
COMPENSATION OF KEY MANAGEMENT PERSONNEL    
Short-term benefits $ 2.5 $ 1.8
Share-based payments 1.4 1.3
Total key management personnel remuneration $ 3.9 $ 3.1