| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Revenue: | ||||||||||||||||
| Revenue | ||||||||||||||||
| Total revenue | — | — | ||||||||||||||
| YoY growth | — | — | — | — | ||||||||||||
| Operating expenses: | ||||||||||||||||
| Research and development expense | ||||||||||||||||
| General and administrative expense | ||||||||||||||||
| Loss (Gain) on disposal of assets | ||||||||||||||||
| Gain on early lease termination | ||||||||||||||||
| Total operating expenses | ||||||||||||||||
| % of revenue | — | — | — | — | ||||||||||||
| Operating (loss) income | ||||||||||||||||
| % of revenue | — | — | — | — | ||||||||||||
| Other (expense) income, net: | ||||||||||||||||
| Dividend income | ||||||||||||||||
| Interest income | ||||||||||||||||
| Gain on settlement of accounts payables | ||||||||||||||||
| Change in fair value of contingent liability | ||||||||||||||||
| Other expense, net: | — | |||||||||||||||
| Total other expense, net | ||||||||||||||||
| Net (loss) income before provision for income taxes | ||||||||||||||||
| Provision for income taxes | ||||||||||||||||
| Net (loss) income | ||||||||||||||||
| % of revenue | — | — | — | — | ||||||||||||
| Net (loss) income per common share: | ||||||||||||||||
| Basic (in dollars per share) | ||||||||||||||||
| Diluted (in dollars per share) |