Consolidated Schedule of Investments (Parenthetical) - USD ($) shares in Millions	Jun. 30, 2024	Dec. 31, 2023
Schedule Of Investments [Line Items]
Excess of fair value over tax cost	$ 8,800,000	$ 17,800,000
Excess of tax cost over fair value	33,000,000	26,100,000
Unrealized depreciation	24,200,000	8,300,000
Aggregate tax cost of securities for federal income tax purposes	953,000,000	882,700,000
Net asset value	$ 542,897,723	$ 540,425,212
Percentage of qualifying asset to total asset	70.00%	70.00%
Percentage of qualifying assets totaled	82.20%	85.50%
Investment owned, balance, shares	10.5	10.5
Other liabilities	$ 3,216,397	$ 3,065,646
Investment, Identifier [Axis]: GOJO Industries Inc.
Schedule Of Investments [Line Items]
Investment sold, principal amount	3,200,000	3,100,000
Other liabilities	$ 3,200,000	$ 3,100,000
Investment, Identifier [Axis]: PIK Portion Eight
Schedule Of Investments [Line Items]
Spread PIK	4.00%	4.00%
Investment, Identifier [Axis]: PIK Portion Eleven
Schedule Of Investments [Line Items]
Spread PIK	12.00%	12.00%
Investment, Identifier [Axis]: PIK Portion Five
Schedule Of Investments [Line Items]
Spread PIK	0.75%	10.50%
Investment, Identifier [Axis]: PIK Portion Four
Schedule Of Investments [Line Items]
Spread PIK	2.00%	2.00%
Investment, Identifier [Axis]: PIK Portion Nine
Schedule Of Investments [Line Items]
Spread PIK	0.50%	0.50%
Investment, Identifier [Axis]: PIK Portion One
Schedule Of Investments [Line Items]
Spread PIK	7.00%	7.00%
Investment, Identifier [Axis]: PIK Portion Seven
Schedule Of Investments [Line Items]
Spread PIK	0.25%	0.25%
Investment, Identifier [Axis]: PIK Portion Six
Schedule Of Investments [Line Items]
Spread PIK	7.50%	7.51%
Investment, Identifier [Axis]: PIK Portion Ten
Schedule Of Investments [Line Items]
Spread PIK	15.00%	15.00%
Investment, Identifier [Axis]: PIK Portion Three
Schedule Of Investments [Line Items]
Spread PIK	2.75%	2.75%
Investment, Identifier [Axis]: PIK Portion Twelve
Schedule Of Investments [Line Items]
Spread PIK	5.00%	9.90%
Investment, Identifier [Axis]: PIK Portion Two
Schedule Of Investments [Line Items]
Spread PIK	3.00%	3.00%
Revolving Credit Facility
Schedule Of Investments [Line Items]
Debt instrument, collateral amount	$ 139,100,000
2021 CLO
Schedule Of Investments [Line Items]
Debt instrument, collateral amount	$ 400,400,000
Minimum | Non Controlled [Member]
Schedule Of Investments [Line Items]
Percentage of voting interests acquired in portfolio	5.00%
Maximum | Non Controlled [Member]
Schedule Of Investments [Line Items]
Percentage of voting interests acquired in portfolio	25.00%
Portfolio [Member] | Minimum | Controlled Investments [Member]
Schedule Of Investments [Line Items]
Percentage of voting interests acquired in portfolio	25.00%	25.00%
Portfolio [Member] | Minimum | Non Controlled [Member]
Schedule Of Investments [Line Items]
Percentage of voting interests acquired in portfolio	5.00%	5.00%
Portfolio [Member] | Maximum | Non Controlled [Member]
Schedule Of Investments [Line Items]
Percentage of voting interests acquired in portfolio	25.00%	25.00%
Non-accrual Status [Member]
Schedule Of Investments [Line Items]
Percentage of fair value	1.50%	1.80%
Percentage of investment cost	1.70%	1.80%