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Loans Payable - March 2023 Note and Warrant Purchase Agreement - Additional Information (Detail) - USD ($) |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Dec. 20, 2024 | Sep. 06, 2024 | Mar. 06, 2023 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Change in fair value |  |  |  | $ (8,650,397) | $ 19,542,434 | $ (16,112,283) | $ 18,471,872 |
Amortization of debt discount |  |  |  |  |  | 1,342,069 | 2,892,088 |
Debt discount amount |  |  |  | 564,782 |  | 564,782 |  | $ 1,906,850
Converted aggregate indebtedness |  |  |  |  |  | 15,535,615 | 1,185,701 |
March 2023 Note And Warrant Purchase Agreement [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Change in fair value |  |  |  | $ 1,100,000 | (5,900,000) | $ 2,400,000 | (6,200,000) |
Debt instrument interest rate |  |  |  | 11.00% |  | 11.00% |  |
Debt discount amount |  |  |  | $ 400,000 |  | $ 400,000 |  | 1,500,000
Principal outstading repaid |  | $ 3,000,000 |  |  |  |  |  |
Common stock, conversion percentage of volume weighted average price percent | 75.00% |  |  |  |  |  |  |
Common stock, stock period of volume weighted average price per common share | 30 days |  |  |  |  |  |  |
Anti dilutive securities excluded from computation of weighted average price minimum price range | $ 1.1 |  |  |  |  |  |  |
Anti dilutive securities excluded from computation of weighted average price maximum price range | 2.2 |  |  |  |  |  |  |
Converted aggregate indebtedness |  |  |  | $ 11,300,000 |  |  |  |
Converted number of shares |  |  |  | 9,900,464 |  |  |  |
March 2023 Note And Warrant Purchase Agreement [Member] | Loans Payable [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument face amount |  |  |  | $ 3,100,000 |  | 3,100,000 |  | 13,100,000
Debt instrument, fair value disclosure |  |  |  | 3,100,000 |  | 3,100,000 |  | 13,100,000
Embedded derivative liability at fair value |  |  |  | 1,000,000 |  | 1,000,000 |  | 2,700,000
Long-term Debt |  |  |  | 2,700,000 |  | 2,700,000 |  | 11,600,000
Debt Issuance Costs, Net |  |  |  | 27,687 |  | 27,687 |  | 89,820
March 2023 Note And Warrant Purchase Agreement [Member] | Note And Warrant Purchase Agreement [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Paid in kind interest payable |  |  |  | 3,200,000 |  | 3,200,000 |  | 1,200,000
March 2023 Note And Warrant Purchase Agreement [Member] | Pending Litigation [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Amortization of debt discount |  |  |  | 400,000 | 500,000 | 1,100,000 | 1,700,000 |
Amortization of debt issuance costs |  |  |  | $ 27,686 | $ 12,447 | 82,158 | $ 44,493 |
March 2023 Note And Warrant Purchase Agreement [Member] | Warrants |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Fair value of warrants |  |  |  |  |  | $ 3,700,000 |  | $ 1,900,000
March 2023 Note And Warrant Purchase Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Exercise price | 3.78 |  |  |  |  |  |  |
March 2023 Note And Warrant Purchase Agreement [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Exercise price | $ 1.1 |  |  |  |  |  |  |
March 2023 Note And Warrant Purchase Agreement [Member] | Purchase Agreement [Member] | Promissory Note [Member] |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |
Debt instrument face amount |  |  | $ 14,000,000 |  |  |  |  |
Debt instrument maturity date |  |  | Dec. 06, 2024 |  |  |  |  |

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