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Other Income (Details Narrative) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Research and development incentive income $ 564,842 $ 682,432 $ 2,048,113 $ 2,328,675    
Grant income 0 0 25,000 0    
Deferred grant income 916,763   916,763     $ 443,831
Australia, Dollars            
Research and development incentive income $ 852,862 $ 954,986 3,068,615 $ 3,218,303    
Anavex [Member]            
Research and development incentive income     497,931   $ 497,931  
Michael J Fox [Member]            
Research and development incentive income     $ 995,862