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Investments - Schedule of Reconciliation of Investments Measured at Fair value on a recurring basis using Level 3 inputs (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Jun. 30, 2022
Schedule Of Investment Income Reported Amounts By Category [Line Items] |  |  |  |  |
Investment Owned, at Fair Value, Beginning Balance |  |  | $ 233,683,986 |  |
Purchases (including PIK interest) | $ 6,378,958 | $ 67,305,636 | 28,526,813 | $ 86,793,768 |
Investment sales and repayments | 15,604,801 | 45,333,408 | 32,081,500 | 66,870,670 |
Amortization |  |  | 874,796 | 1,488,020 |
Net realized gains (losses) | 0 | (8,545,020) | 0 | (7,783,557) |
Net change in unrealized appreciation (depreciation) | (1,731,840) | 9,892,392 | (2,410,437) | 9,889,537 |
Investment Owned, at Fair Value, Ending Balance | 228,593,658 |  | 228,593,658 |  | $ 233,683,986
Senior Secured First Lien Debt Investments |  |  |  |  |
Schedule Of Investment Income Reported Amounts By Category [Line Items] |  |  |  |  |
Investment Owned, at Fair Value, Beginning Balance |  |  | 214,858,036 |  |
Investment Owned, at Fair Value, Ending Balance | 208,453,033 |  | 208,453,033 |  | 214,858,036
Equity, Warrants and Other Investments |  |  |  |  |
Schedule Of Investment Income Reported Amounts By Category [Line Items] |  |  |  |  |
Investment Owned, at Fair Value, Beginning Balance |  |  | 18,825,950 |  |
Investment Owned, at Fair Value, Ending Balance | 20,140,625 |  | 20,140,625 |  | 18,825,950
Fair Value, Inputs, Level 3 |  |  |  |  |
Schedule Of Investment Income Reported Amounts By Category [Line Items] |  |  |  |  |
Investment Owned, at Fair Value, Beginning Balance |  |  | 233,683,986 | 245,855,620 | 245,855,620
Purchases (including PIK interest) |  |  | 28,526,813 | 86,793,768 |
Investment sales and repayments |  |  | (32,081,500) | (66,870,670) |
Amortization |  |  | 874,796 | 1,488,020 |
Net realized gains (losses) |  |  |  | (7,783,557) |
Net change in unrealized appreciation (depreciation) |  |  | (2,410,437) | 9,889,537 |
Investment Owned, at Fair Value, Ending Balance | 228,593,658 | 269,372,718 | 228,593,658 | 269,372,718 | 233,683,986
Change in unrealized appreciation (depreciation) relating to assets |  |  | (2,345,294) | 107,083 |
Fair Value, Inputs, Level 3 | Senior Secured First Lien Debt Investments |  |  |  |  |
Schedule Of Investment Income Reported Amounts By Category [Line Items] |  |  |  |  |
Investment Owned, at Fair Value, Beginning Balance |  |  | 214,858,036 | 230,351,618 | 230,351,618
Purchases (including PIK interest) |  |  | 27,888,672 | 85,074,299 |
Investment sales and repayments |  |  | (32,081,500) | (58,699,979) |
Amortization |  |  | 874,796 | 1,424,145 |
Net realized gains (losses) |  |  |  | (7,783,557) |
Net change in unrealized appreciation (depreciation) |  |  | (3,086,971) | 6,420,411 |
Investment Owned, at Fair Value, Ending Balance | 208,453,033 | 256,786,937 | 208,453,033 | 256,786,937 | 214,858,036
Change in unrealized appreciation (depreciation) relating to assets |  |  | (3,021,829) | (1,665,918) |
Fair Value, Inputs, Level 3 | Senior Secured Second Lien Debt Investments |  |  |  |  |
Schedule Of Investment Income Reported Amounts By Category [Line Items] |  |  |  |  |
Investment Owned, at Fair Value, Beginning Balance |  |  |  | 6,240,000 | 6,240,000
Investment sales and repayments |  |  |  | (8,000,000) |
Amortization |  |  |  | 63,875 |
Net change in unrealized appreciation (depreciation) |  |  |  | 1,696,125 |
Fair Value, Inputs, Level 3 | Equity, Warrants and Other Investments |  |  |  |  |
Schedule Of Investment Income Reported Amounts By Category [Line Items] |  |  |  |  |
Investment Owned, at Fair Value, Beginning Balance |  |  | 18,825,950 | 9,264,002 | 9,264,002
Purchases (including PIK interest) |  |  | 638,141 | 1,719,469 |
Investment sales and repayments |  |  |  | (170,691) |
Net change in unrealized appreciation (depreciation) |  |  | 676,534 | 1,773,001 |
Investment Owned, at Fair Value, Ending Balance | $ 20,140,625 | $ 12,585,781 | 20,140,625 | 12,585,781 | $ 18,825,950
Change in unrealized appreciation (depreciation) relating to assets |  |  | $ 676,535 | $ 1,773,001 |

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