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Investments - Schedule of Fair Value Measurements of Assets (Details) - USD ($) | Sep. 30, 2023 | Jun. 30, 2023 | Sep. 30, 2022 | Jun. 30, 2022
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Investments at Fair Value | $ 223,404,283 | $ 220,111,329 |  |
Level 3 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Investments at Fair Value | 223,404,283 | 220,111,329 | $ 239,177,561 | $ 233,683,986
Senior Secured First Lien Debt Investments |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Investments at Fair Value | 200,319,576 | 196,370,955 |  |
Senior Secured First Lien Debt Investments | Level 3 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Investments at Fair Value | 200,319,576 | 196,370,955 | 219,533,195 | 214,858,036
Equity, Warrants and Other Investments |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Investments at Fair Value | 23,084,707 | 23,740,374 |  |
Equity, Warrants and Other Investments | Level 3 |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Investments at Fair Value | $ 23,084,707 | $ 23,740,374 | $ 19,644,366 | $ 18,825,950

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