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Stockholders' Equity (Details) - USD ($) |  |  | 3 Months Ended | 6 Months Ended | 22 Months Ended | 28 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 10, 2024 | Jul. 12, 2022 | Apr. 30, 2024 | Apr. 30, 2023 | Apr. 30, 2024 | Apr. 30, 2024 | Oct. 31, 2024 | Oct. 31, 2023
Stockholders' Equity Note |  |  |  |  |  |  |  |
Common stock, par value |  |  | $ 0.0001 |  | $ 0.0001 | $ 0.0001 |  | $ 0.0001
Common Stock |  |  |  |  |  |  |  |
Stockholders' Equity Note |  |  |  |  |  |  |  |
Shares sold during the period |  |  | 6,463,716 | 949,438 |  |  |  |
2022 Open Market Sale Agreement | Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC |  |  |  |  |  |  |  |
Stockholders' Equity Note |  |  |  |  |  |  |  |
Percentage of sales commission |  | 2.00% |  |  |  |  |  |
2022 Open Market Sale Agreement | Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC | Common Stock |  |  |  |  |  |  |  |
Stockholders' Equity Note |  |  |  |  |  |  |  |
Average sale price per share |  |  |  |  |  | $ 0.98 |  |
2022 Open Market Sale Agreement | Jefferies LLC and Barclays Capital Inc. | Common Stock |  |  |  |  |  |  |  |
Stockholders' Equity Note |  |  |  |  |  |  |  |
Percentage of sales commission | 2.00% |  |  |  |  |  |  |
Aggregate Offering Price | $ 300,000,000.0 |  |  |  |  |  |  |
Shares sold during the period | 0 |  |  |  |  |  |  |
2022 Open Market Sale Agreement | Maximum | Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC | Common Stock |  |  |  |  |  |  |  |
Stockholders' Equity Note |  |  |  |  |  |  |  |
Shares sold during the period |  | 95,000,000.0 |  |  |  |  |  |
Amended Open Market Sales Agreement | Jefferies LLC, B. Riley Securities, Inc., Barclays Capital Inc., BMO Capital Markets Corp., BofA Securities, Inc., Canacord Genuity LLC, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and Loop Capital Markets LLC | Common Stock |  |  |  |  |  |  |  |
Stockholders' Equity Note |  |  |  |  |  |  |  |
Shares sold during the period | 0 |  |  |  | 6,500,000 |  | 6,500,000 |
Aggregate Offering Price | $ 300.0 |  |  |  |  |  |  |
Average sale price per share |  |  |  |  | $ 0.98 |  |  |
Common stock issuance, net of fees |  |  |  |  | $ 5,900,000 |  |  |
Sales commission | $ 100,000 |  |  |  | 100,000 |  |  |
Gross proceeds from issuance of common stock |  |  |  |  | 6,300,000 |  |  |
Net proceeds from issuance of common stock |  |  |  |  | 5,900,000 |  |  |
Payments of underwriting discounts and commissions |  |  |  |  | 300,000 |  |  |
Offering price |  |  | $ 293,700,000 |  | $ 293,700,000 | $ 293,700,000 |  |

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