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Board of Directors, Senior Management and Key management personnel (Details Textual) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2021 Employees | Dec. 31, 2020 Employees
Related party disclosures [Line Items] |  |  |  |  |
Key management personnel compensation | $ 31,560 | $ 23,770 | $ 22,598 |  |
Number of employees | 127 | 126 |  | 6,081 | 5,507
Chairman [Member] | Variable compensation [Member] | National currency [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Key management personnel compensation, Percentage | 0.12% | 0.09% |  |  |
Directors [Member] | Variable compensation [Member] | Local currency [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Key management personnel compensation, Percentage | 0.06% | 0.045% |  |  |
Directors committee [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Key management personnel compensation | $ 3,749 | $ 4,553 |  |  |
Directors committee [Member] | Variable compensation [Member] | Local currency [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Key management personnel compensation, Percentage | 0.02% | 0.015% |  |  |
Health, Safety and Environmental Matters Committee [Member] | Fixed compensation [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Key management personnel compensation |  | $ 100 |  |  |
Corporate Governance Committee [Member] | Fixed compensation [Member] |  |  |  |  |
Related party disclosures [Line Items] |  |  |  |  |
Key management personnel compensation |  | $ 100 |  |  |

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