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v3.23.1

Convertible securities (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Preference shares liabilities | Series D preference shares |  |
Disclosure of detailed information about borrowings [line items] |  |
Number of shares issued in conversion |  | 2,729,893
Note 1 |  |
Disclosure of detailed information about borrowings [line items] |  |
Aggregate principal value | $ 12,500,000 |
Coupon rate at the time of redemption | 2.00% |
Accrued interest rate at the time repayment fails | 8.00% |
Conversion of series D preference shares | $ 4.5789 |
Note 2 |  |
Disclosure of detailed information about borrowings [line items] |  |
Aggregate principal value | $ 5,000,000 |
Coupon rate at the time of redemption | 2.00% |
Accrued interest rate at the time repayment fails | 8.00% |
Conversion of series D preference shares | $ 6.6023 |

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