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Other Income (Details Narrative) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Sep. 30, 2023
Sep. 30, 2021
Research and development incentive income $ 600,000 $ 700,000    
Grant income 0 25,000    
Grant income, amount 900,000   $ 900,000  
Incentive and tax receivables 3,300,000   2,500,000  
Australia, Dollars        
Research and development incentive income 900,000 $ 1,100,000    
Incentive and tax receivables 4,900,000   3,900,000  
Anavex [Member]        
Research and development incentive income     $ 500,000 $ 500,000
Michael J Fox [Member]        
Research and development incentive income $ 1,000,000