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Borrowings (Details) - USD ($)									1 Months Ended	12 Months Ended
	Aug. 05, 2024	May 02, 2024	Feb. 21, 2024	Dec. 15, 2022	Nov. 09, 2021	Mar. 10, 2018	Dec. 12, 2016	Mar. 26, 2013	Dec. 16, 2021	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022	Jan. 17, 2023	Nov. 15, 2021	Dec. 31, 2018	Mar. 31, 2018	Jan. 14, 2016	Dec. 17, 2015	Dec. 30, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 30, 2013
Borrowings [Line Items]
Asset coverage percentage										200.00%
Asset coverage percentage with no approval										200.00%
Revolving credit facility in terms				3 years
Revolving credit facility				$ 50,000,000
Borrowed amount													$ 23,200,000
Accrued and unpaid interest rate										6.30%	5.90%	6.00%
Aggregate principal amount										$ 76,471,498	$ 36,441,941	$ 57,500,000
Outstanding credit facility										78,100,000	$ 28,400,000
Interest rate											2.90%
Commitment fee percentage											0.25%
Aggregate principal amount				$ 22,521,800
Gain (loss) on extinguishment of debt												$ (296,197)
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed				100.00%
2023 Notes [Member]
Borrowings [Line Items]
Aggregate principal amount													$ 22,600,000					$ 60,000,000
Accrued and unpaid interest rate													100.00%
Percentage of unsecured notes																		6.125%
2028 Promissory Note [Member]
Borrowings [Line Items]
Percentage of unsecured notes																	5.25%
Principal amount		$ 1,661,498
Unsecured Debt [Member] | 2023 Notes [Member]
Borrowings [Line Items]
Aggregate principal amount								$ 3,500,000
Percentage of unsecured notes																			6.125%	6.125%	6.125%	6.125%
Sale of debt (in Shares)							1,573,872
Redemption price per share (in Dollars per share)							$ 25.03
Net proceeds							$ 38,600,000
Aggregate principal amount						$ 13,000,000			$ 55,325,000					$ 55,325,000	$ 12,000,000
Gain (loss) on extinguishment of debt						$ 300,000			$ 300,000
Unsecured Debt [Member] | 2028 Promissory Note [Member]
Borrowings [Line Items]
Aggregate principal amount					$ 57,500,000
Percentage of unsecured notes					5.25%
Maturity date					Nov. 01, 2028
Maximum [Member]
Borrowings [Line Items]
Asset coverage percentage										270.70%	216.80%					200.00%
Aggregate principal amount	$ 87,500,000		$ 62,500,000
Maximum [Member] | Unsecured Debt [Member] | 2023 Notes [Member]
Borrowings [Line Items]
Aggregate principal amount							$ 40,000,000
Minimum [Member]
Borrowings [Line Items]
Asset coverage percentage										200.00%	200.00%					150.00%
Aggregate principal amount	$ 25,000,000		$ 12,500,000
Underwriters [Member] | 2028 Promissory Note [Member]
Borrowings [Line Items]
Aggregate principal amount					$ 7,500,000

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Asset coverage percentage.

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Sale of debt securities by shares.

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The amount of debt instrument redemption value.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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Percentage of principal amount of debt redeemed.

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Weighted average interest rate of debt outstanding.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The fair value of line of credit assumed in noncash investing or financing activities.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The effective interest rate during the reporting period.

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Maximum month-end amount borrowed under the credit facility during the period.

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Amount, after the effects of master netting arrangements, of securities borrowed from entities in exchange for collateral. Includes assets not subject to a master netting arrangement and not elected to be offset.

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