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Other Income (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Defined Benefit Plan Disclosure [Line Items] |  |  |
Grant income | $ 500,000 | $ 0 | $ 500,000
Research and development incentive income | 2,700,000 | 3,300,000 | 4,500,000
Non operating income from grant | 25,000 | 0 | 54,100
Deferred grant income | 900,000 | 400,000 |
Incentive and tax receivables | 2,500,000 | 2,900,000 |
Australia, Dollars |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Research and development incentive income | 4,100,000 | 4,500,000 | 6,100,000
Incentive and tax receivables | $ 3,900,000 | $ 4,500,000 |
Michael J Fox Foundation [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Research and development incentive income |  |  | $ 1,000,000

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