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Borrowings (Details) - USD ($)								1 Months Ended			3 Months Ended
	Dec. 15, 2022	Nov. 09, 2021	Dec. 12, 2016	Dec. 12, 2016	Jan. 14, 2016	Mar. 26, 2013	Mar. 18, 2013	Dec. 16, 2021	Dec. 31, 2018	Mar. 18, 2013	Dec. 31, 2022	Dec. 31, 2021	Sep. 30, 2022	Nov. 15, 2021	Mar. 31, 2018	Mar. 10, 2018	Dec. 30, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 30, 2013
Borrowings (Details) [Line Items]
Asset coverage percentage											200.00%
Revolving credit facility	$ 50,000,000
Outstanding borrowings
Interest rate											2.90%
Commitment fee percentage											0.25%
Aggregate principal amount												$ 57,500,000
Gain (loss) on extinguishment of debt												(296,197)
Aggregate principal amount	$ 22,521,800
Percentage of principal amount	100.00%
Interest and financing expenses											$ 30,431	$ 0
Maximum [Member]
Borrowings (Details) [Line Items]
Asset coverage percentage											259.70%		255.00%		200.00%
Minimum [Member]
Borrowings (Details) [Line Items]
Asset coverage percentage											200.00%		200.00%		150.00%
2023 Notes [Member] | Unsecured Debt [Member]
Borrowings (Details) [Line Items]
Aggregate principal amount						$ 3,500,000				$ 60,000,000
Percentage of unsecured notes							6.125%			6.125%							6.125%	6.125%	6.125%	6.125%
Maturity date							Mar. 30, 2023
Sale of debt (in Shares)				1,573,872
Redemption price per share (in Dollars per share)			$ 25.03	$ 25.03
Net proceeds				$ 38,600,000
Aggregate principal amount								$ 55,325,000	$ 12,000,000					$ 55,325,000		$ 13,000,000
Gain (loss) on extinguishment of debt								$ 300,000	$ 300,000
2023 Notes [Member] | Unsecured Debt [Member] | Maximum [Member]
Borrowings (Details) [Line Items]
Aggregate principal amount			$ 40,000,000
2021 Notes [Member] | Unsecured Debt [Member]
Borrowings (Details) [Line Items]
Aggregate principal amount					$ 3,500,000
2028 Notes [Member] | Underwriters [Member]
Borrowings (Details) [Line Items]
Aggregate principal amount		$ 7,500,000
2028 Notes [Member] | Unsecured Debt [Member]
Borrowings (Details) [Line Items]
Aggregate principal amount		$ 57,500,000
Percentage of unsecured notes		5.25%
Maturity date		Nov. 01, 2028

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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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Par value per share of debt instrument redemption price.

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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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Amount of debtor-in-possession borrowings outstanding.

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

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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