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Note 36 - Related Parties - Key Management Personnel and Entities (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement Line Items [Line Items]      
Key management salaries and bonuses $ 2,915 $ 2,362 $ 2,476
Cash-settled share-based expense* [1] 1,280 723 261
Key management personnel compensation $ 4,195 $ 3,085 $ 2,737
[1] Amount inclusive of $295 (2019: $107, 2018: $43) classified as production costs.