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Investments (Details) - USD ($)
12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2022
Schedule of Investments [Line Items]      
Total fair value of warrants $ 82,700 $ 206,500  
Total unrealized depreciation 5,705,864 31,941,213 $ (14,463,337)
Warrant [Member]      
Schedule of Investments [Line Items]      
Total unrealized depreciation $ 123,700 $ 143,900 $ 299,100