| Line Item | Jun 30, 2026 | Mar 31, 2026 | Dec 31, 2025 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Dec 31, 2022 | Sep 30, 2022 |
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| OPERATING EXPENSES: | ||||||||||||||||
| Research and development | ||||||||||||||||
| General and administrative | ||||||||||||||||
| Total operating expenses | ||||||||||||||||
| Loss from operations: | ||||||||||||||||
| OTHER (EXPENSE) INCOME, NET: | ||||||||||||||||
| Fair value change of warrant liabilities | ||||||||||||||||
| Interest income | ||||||||||||||||
| Benefit from R&D tax credit | ||||||||||||||||
| Interest expense | ||||||||||||||||
| Foreign exchange (losses) gains | ||||||||||||||||
| Other income (expense) | ||||||||||||||||
| Total other (expense) income, net | ||||||||||||||||
| Loss before income taxes | ||||||||||||||||
| Income tax expense | ||||||||||||||||
| Net loss | ||||||||||||||||
| Net loss per share attributable to ordinary shareholders: basic (in dollars per share) | ||||||||||||||||
| Net loss per share attributable to ordinary shareholders: diluted (in dollars per share) |