| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Product sales, net | — | — | ||||||||||||||
| YoY growth | — | — | — | — | ||||||||||||
| Costs and expenses: | ||||||||||||||||
| Cost of product sales | — | — | ||||||||||||||
| Research and development | ||||||||||||||||
| Selling, general and administrative | ||||||||||||||||
| Total costs and expenses | ||||||||||||||||
| % of revenue | 99.7% | 276.1% | — | — | ||||||||||||
| Income (loss) from operations | ||||||||||||||||
| % of revenue | 0.3% | -176.1% | — | — | ||||||||||||
| Interest and other income | ||||||||||||||||
| Interest expense, net of remeasurement adjustments and other | ||||||||||||||||
| Net gain on change in fair value of financial instruments | ||||||||||||||||
| Loss on early extinguishment of Notes | — | — | ||||||||||||||
| Income (loss) from continuing operations before income tax expense | — | — | ||||||||||||||
| Income tax expense | — | — | ||||||||||||||
| Net income (loss) from continuing operations | ||||||||||||||||
| Net income (loss) | ||||||||||||||||
| % of revenue | 46.4% | 566.7% | — | — | ||||||||||||
| Net income from discontinued operations (in dollars per share) | ||||||||||||||||
| Net income (loss) (in dollars per share) |