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Income tax expense/(credit) - Expiry dates of the cumulative tax losses (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Tax Disclosure [Line Items] |  |  |
Tax Losses Utilized | $ 62,586,553 | $ 0 | $ 3,050,828
Not later than one year [member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Tax Losses Utilized | 893,511 | 0 |
Later than one year and not later than five years [member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Tax Losses Utilized | 14,362,136 | 0 |
Later than five years and not later than ten years [member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Tax Losses Utilized | 25,085,050 | 0 |
Indefinite Period [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Tax Losses Utilized | $ 22,245,856 | $ 0 |

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