| 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 | |||||||||||||||
| Loss from operations | |||||||||||||||
| Other income: | |||||||||||||||
| Other income, net | |||||||||||||||
| Net loss | |||||||||||||||
| Dividend attributable to down round feature of warrants | — | ||||||||||||||
| Net loss attributable to common stockholders | |||||||||||||||
| Basic net loss per share | — | ||||||||||||||
| Diluted net loss per share | — |