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Significant Accounting Policies - Schedule of Distributable Earnings on Tax Basis (Details) - USD ($)	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Accounting Policies [Abstract]
Undistributed net investment income	$ 7,476,383	$ 11,648,379	$ 9,342,951
Accumulated capital gains (losses) and other	(14,786,107)	(27,970,779)	(15,703,257)
Capital loss carryover	(101,070,039)	(73,713,555)	(57,692,925)
Unrealized appreciation (depreciation)	(19,727,695)	(23,015,323)	(43,884,017)
Distributions payable	0	(2,590,520)	(2,157,872)
Distributable earnings (loss)	$ (128,107,458)	$ (115,641,798)	$ (110,095,120)

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