Convertible bonds - Valuation of the convertible bonds (Details) - Convertible bonds - $ / shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure of detailed information about borrowings [line items] | ||
| Weighted average share price | $ 2 | |
| Minimum | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Expected volatility (%) | 71.75% | 70.36% |
| Risk-free interest rate (%) | 4.19% | 5.08% |
| Bond Maturity | 0.76 | 0.51 |
| Weighted average share price | $ 1.52 | |
| Maximum | ||
| Disclosure of detailed information about borrowings [line items] | ||
| Expected volatility (%) | 73.64% | 78.64% |
| Risk-free interest rate (%) | 4.20% | 5.49% |
| Bond Maturity | 0.98 | 0.94 |
| Weighted average share price | $ 6.63 | |