Summary of Significant Accounting Policies - Additional Information (Detail) - Pre-funded Warrants - shares |
Sep. 30, 2026 |
Sep. 30, 2025 |
|---|---|---|
| December 2020 Public Offering | ||
| Subsidiary, Sale of Stock [Line Items] | ||
| Number of outstanding warrants issued to purchase common stock (in shares) | 400,000 | 400,000 |
| April 2022 Public Offering | ||
| Subsidiary, Sale of Stock [Line Items] | ||
| Number of outstanding warrants issued to purchase common stock (in shares) | 398,727 | 398,727 |
| March 2026 Private Placement | Maximum | ||
| Subsidiary, Sale of Stock [Line Items] | ||
| Number of outstanding warrants issued to purchase common stock (in shares) | 1,093,744 |