| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| License and collaborations revenue | ||||||||||||||||
| YoY growth | -73.8% | -50.6% | -10.2% | -20.4% | ||||||||||||
| Operating expenses: | ||||||||||||||||
| Research and development | ||||||||||||||||
| General and administrative | ||||||||||||||||
| Total operating expenses | ||||||||||||||||
| % of revenue | 2282.8% | 765.9% | 396.3% | 369.9% | ||||||||||||
| Loss from operations | ||||||||||||||||
| % of revenue | -2182.8% | -665.9% | -296.3% | -269.9% | ||||||||||||
| Fair value change in instruments measured at fair value | — | — | — | |||||||||||||
| Financing costs | ||||||||||||||||
| Other income, net | ||||||||||||||||
| Loss before income taxes | ||||||||||||||||
| Benefit (provision) for income taxes | ||||||||||||||||
| Net loss | ||||||||||||||||
| % of revenue | -1072.6% | -3038.2% | -427.5% | -566.9% | ||||||||||||
| Basic (in dollars per share) | ||||||||||||||||
| Diluted (in dollars per share) |