| Line Item | Jun 30, 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Operating expenses | |||||||||||||||
| Research and development | |||||||||||||||
| General and administrative | |||||||||||||||
| Total operating expenses | |||||||||||||||
| Loss from operations | |||||||||||||||
| Other income (expense) | |||||||||||||||
| Gain on remeasurement of warrant liabilities | |||||||||||||||
| Interest expense | |||||||||||||||
| Interest income | |||||||||||||||
| Other expense, net | |||||||||||||||
| Total other income, net | |||||||||||||||
| Loss before provision for income taxes | |||||||||||||||
| Provision for income taxes | |||||||||||||||
| Net loss | |||||||||||||||
| Basic and diluted (in dollars per share) | — |