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Goodwill and Intangible Assets - Additional Information (Details) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Goodwill [Line Items] |  |
Impairment of goodwill | $ 0 | $ 0
Goodwill, Gross | 13,329,000 | $ 10,282,000
Genasys Spain [Member] |  |
Goodwill [Line Items] |  |
Goodwill and Intangible Assets, Foreign Currency Translation Gain (Loss) | $ 131,000 |

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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) goodwill and intangible assets. + References No definition available. + Details
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