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Investment in associate company (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) Vessel | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Disclosure of subsidiaries [line items] |  |  |
Investment in associate company | $ 5,406 | $ 5,233 |
Share of Profit of the Associate Using in Equity Method [Abstract] |  |  |
Profit after taxation | 1,278 | 1,193 | $ 852
Other comprehensive income for the year, net of tax | (74) | 104 |
Total comprehensive income for the year | $ 1,204 | $ 1,297 |
Goodwood Ship Management Pte. Ltd. [Member] |  |  |
Disclosure of subsidiaries [line items] |  |  |
Number of vessels in associates | Vessel | 24 |  |
Details of Associates [Abstract] |  |  |
Name of associate | Goodwood Ship Management Pte. Ltd. |  |
Principal activities | Ship management |  |
Place of incorporation and business | Singapore |  |
Effective equity interest | 50.00% | 50.00% |

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