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Investments - Schedule of Investment Purchases Sales And Principal Payments (Details) - USD ($)
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Investments, Debt and Equity Securities [Abstract]      
Investment purchases, at cost (including PIK interest) $ 53,237,881 $ 145,380,662 $ 92,065,783
Investment sales and repayments $ 61,928,745 $ 153,877,788 $ 108,183,417