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Stockholders' Equity - Common Stock Reserved for Future Issuance (Detail) - shares | Sep. 30, 2024 | Oct. 31, 2023
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Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 11,763,188 |
Pre-Funded Warrants [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 2,630,000 |
Common Warrants [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 6,562,500 |
Equity Incentive Plan 2012 [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 0 |
Equity Incentive Plan 2022 [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 452,038 |
2023 Employee Stock Purchase Plan [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance |  | 45,000
Employee Stock Option | Equity Incentive Plan 2012 [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 423,488 |
Employee Stock Option | Equity Incentive Plan 2022 [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 1,361,878 |
Employee Stock Option | 2023 Employee Stock Purchase Plan [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 44,500 |
Employee Stock Option | 2021 Inducement Equity Plan [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 1,000 |
Employee Stock Option | Incentive Award Plan [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 50,000 |
Restricted stock units (RSUs) [Member] | Equity Incentive Plan 2012 [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 2,500 |
Restricted stock units (RSUs) [Member] | Equity Incentive Plan 2022 [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock reserved for future issuance | 235,284 |

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