| Line Item | Dec 31, 2025 | Dec 31, 2024 | Dec 31, 2023 | Dec 31, 2022 | Dec 31, 2021 | Dec 31, 2020 | Dec 31, 2019 |
|---|---|---|---|---|---|---|---|
| Operating expenses | |||||||
| Research and development | |||||||
| General and administration | |||||||
| Loss from operations | |||||||
| Finance income | |||||||
| Finance expense | |||||||
| Movement of expected credit loss | |||||||
| Foreign exchange gain/(loss) | |||||||
| Total other income | |||||||
| Loss before tax | |||||||
| Tax charge/(credit) | |||||||
| Loss for the year | |||||||
| Items that may be reclassified to profit or loss | |||||||
| Fair value movement on marketable securities | |||||||
| Currency translation adjustment | |||||||
| Total comprehensive loss for the year | |||||||
| Attributable to owners: | |||||||
| Loss for the year | |||||||
| Total comprehensive loss for the year | |||||||
| Loss per share | |||||||
| Basic loss per share (in dollars per share) | |||||||
| Diluted loss per share (in dollars per share) |