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Financial Highlights (Details) - USD ($)
12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Investment Company, Financial Highlights [Abstract]          
Weighted average common stock per share $ 3.11 $ 1.48 $ 6.92 $ (3.35) $ (7.66)
Asset coverage of indebtedness (in Dollars) $ 1,000        
Asset coverage percentage 270.70%        
Leverage of asset coverage 200.00%