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Common Stock - Additional Information (Detail) - $ / shares | Jun. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023
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Stockholders' Equity Note [Abstract] |  |  |
Warrants of common stock exercise price | $ 3.98 | $ 3.98 |
Common stock, warrants issued | 4,899,497 | 4,899,497 | 4,899,497
Common stock, warrants outstanding | 4,899,497 | 4,899,497 | 4,899,497

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 + Details
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