| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Operating expenses: | ||||||||||||||
| Research and development | ||||||||||||||
| General and administrative | ||||||||||||||
| Total operating expenses | ||||||||||||||
| Loss from operations | ||||||||||||||
| Other income (expense): | ||||||||||||||
| Interest income | ||||||||||||||
| Interest expense | ||||||||||||||
| Loss on debt extinguishment | ||||||||||||||
| Other, net | ||||||||||||||
| Total other income, net | ||||||||||||||
| Net loss | ||||||||||||||
| Change in fair value attributable to instrument specific credit risk | ||||||||||||||
| Net loss per share attributable to common stockholders, basic (in dollars per share) | ||||||||||||||
| Net loss per share attributable to common stockholders, diluted (in dollars per share) |