INVESTMENTS IN AND ADVANCES TO AFFILIATES (Details)

v3.24.3

INVESTMENTS IN AND ADVANCES TO AFFILIATES (Details) - USD ($)		12 Months Ended
		Sep. 30, 2024		Sep. 30, 2023		Sep. 30, 2022
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		169.10%	[1],[2],[3],[4],[5]	172.50%	[6],[7],[8],[9],[10]
Net Realized Gain (Loss) for Period		$ 5,959,000		$ 12,664,000		$ 5,173,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[8]	704,815,000
Ending Balance		796,260,000	[5]	704,815,000	[8]
Diversified/Conglomerate Manufacturing
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		158,061,000
Ending Balance		160,264,000		158,061,000
Diversified/Conglomerate Service
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		135,060,000
Ending Balance		179,032,000		135,060,000
Automobile
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		27,571,000
Ending Balance		28,286,000		27,571,000
Machinery
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		6,411,000
Ending Balance		21,816,000		6,411,000
Secured first lien debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		510,701,000
Ending Balance		554,937,000		510,701,000
Secured second lien debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		127,854,000
Ending Balance		113,716,000		127,854,000
Preferred equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		26,855,000
Ending Balance		31,346,000		26,855,000
Common equity/equivalents
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		39,381,000
Ending Balance		$ 96,229,000		$ 39,381,000
Affiliate investments
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		1.60%	[1],[2],[3],[4],[11]	2.60%	[6],[7],[9],[10],[12]
Net Realized Gain (Loss) for Period		$ 0		$ 0		13,408,000
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[12]	10,421,000
Gross Additions		0
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		(2,983,000)
Ending Balance		$ 7,438,000	[11]	$ 10,421,000	[12]
Affiliate investments | Secured first lien debt
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.10%	[1],[2],[3],[4],[11]	0.70%	[6],[7],[9],[10],[12]
Affiliate investments | Secured first lien debt | Diversified/Conglomerate Manufacturing
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.10%	[1],[2],[3],[4],[11]	0.70%	[6],[7],[9],[10],[12]
Affiliate investments | Preferred equity
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.90%	[1],[2],[3],[4],[11]	1.30%	[6],[7],[9],[10],[12]
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[12]	5,122,000
Gross Additions		0
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		(1,023,000)
Ending Balance		$ 4,099,000	[11]	$ 5,122,000	[12]
Affiliate investments | Preferred equity | Diversified/Conglomerate Manufacturing
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.00%	[1],[2],[3],[4],[11]	0.00%	[6],[7],[9],[10],[12]
Affiliate investments | Preferred equity | Diversified/Conglomerate Service
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets	[1],[2],[3],[4],[11]	0.70%
Affiliate investments | Preferred equity | Personal and Non-Durable Consumer Products (Manufacturing Only)
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.20%	[1],[2],[3],[4],[11]	0.20%	[6],[7],[9],[10],[12]
Affiliate investments | Common equity/equivalents
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.60%	[1],[2],[3],[4],[11]	0.60%	[6],[7],[9],[10],[12]
Affiliate investments | Common equity/equivalents | Personal and Non-Durable Consumer Products (Manufacturing Only)
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.60%	[1],[2],[3],[4],[11]	0.60%	[6],[7],[9],[10],[12]
Control investments
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		8.00%	[1],[2],[3],[4],[13]	7.50%	[6],[7],[9],[10],[14]
Net Realized Gain (Loss) for Period		$ 259,000		$ 2,684,000		$ (8,496,000)
Amount of Investment Income		2,074,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[14]	30,850,000
Gross Additions		4,949,000
Gross Reductions		(1,291,000)
Net Unrealized Appreciation (Depreciation)		3,410,000
Ending Balance		$ 37,918,000	[13]	$ 30,850,000	[14]
Control investments | Secured first lien debt
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		3.00%	[1],[2],[3],[4],[13]	3.90%	[6],[7],[9],[10],[14]
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		931,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[14]	16,120,000
Gross Additions		3,585,000
Gross Reductions		(1,050,000)
Net Unrealized Appreciation (Depreciation)		(4,759,000)
Ending Balance		$ 13,896,000	[13]	$ 16,120,000	[14]
Control investments | Secured first lien debt | Diversified/Conglomerate Manufacturing
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.90%	[1],[2],[3],[4],[13]	0.90%	[6],[7],[9],[10],[14]
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		402,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		3,927,000
Gross Additions		303,000
Gross Reductions		(100,000)
Net Unrealized Appreciation (Depreciation)		70,000
Ending Balance		$ 4,200,000		$ 3,927,000
Control investments | Secured first lien debt | Personal and Non-Durable Consumer Products (Manufacturing Only)
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		2.10%	[1],[2],[3],[4],[13]	2.80%	[6],[7],[9],[10],[14]
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		461,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[14]	11,293,000
Gross Additions		3,282,000
Gross Reductions		(50,000)
Net Unrealized Appreciation (Depreciation)		(4,829,000)
Ending Balance		$ 9,696,000	[13]	$ 11,293,000	[14]
Control investments | Secured first lien debt | Printing and Publishing
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.00%	[1],[2],[3],[4],[13]	0.20%	[6],[7],[9],[10],[14]
Control investments | Secured second lien debt
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		1.80%	[1],[2],[3],[4],[13]	1.80%	[6],[7],[9],[10],[14]
Control investments | Secured second lien debt | Automobile
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		1.80%	[1],[2],[3],[4],[13]	1.80%	[6],[7],[9],[10],[14]
Control investments | Preferred equity
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.00%	[1],[2],[3],[4],[13]	0.00%	[6],[7],[9],[10],[14]
Control investments | Preferred equity | Personal and Non-Durable Consumer Products (Manufacturing Only)
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.00%	[1],[2],[3],[4],[13]	0.00%	[6],[7],[9],[10],[14]
Control investments | Common equity/equivalents
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		3.20%	[1],[2],[3],[4],[13]	1.80%	[6],[7],[9],[10],[14]
Net Realized Gain (Loss) for Period		$ 259,000
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[14]	7,305,000
Gross Additions		2,000
Gross Reductions		(1,000)
Net Unrealized Appreciation (Depreciation)		8,169,000
Ending Balance		$ 15,475,000	[13]	$ 7,305,000	[14]
Control investments | Common equity/equivalents | Diversified/Conglomerate Manufacturing
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		1.70%	[1],[2],[3],[4],[13]	0.00%	[6],[7],[9],[10],[14]
Control investments | Common equity/equivalents | Personal and Non-Durable Consumer Products (Manufacturing Only)
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets	[1],[2],[3],[4],[13]	0.00%
Control investments | Common equity/equivalents | Printing and Publishing
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.90%	[1],[2],[3],[4],[13]	0.70%	[6],[7],[9],[10],[14]
Control investments | Common equity/equivalents | Automobile
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.60%	[1],[2],[3],[4],[13]	1.00%	[6],[7],[9],[10],[14]
Control investments | Common equity/equivalents | Machinery
Investments in and Advances to Affiliates, Activity [Line Items]
Investment owned, percent of net assets		0.00%		0.10%	[6],[7],[9],[10],[14]
Investment, Identifier [Axis]: 8th Avenue Food & Provisions, Inc. – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 3,683,000	[15],[16],[17]	$ 3,683,000	[18],[19],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[18]	2,495,000
Ending Balance		$ 3,241,000	[15]	$ 2,495,000	[18]
Investment, reference rate and spread		7.90%	[1],[2],[3],[4],[15]	7.90%	[6],[7],[9],[10],[18]
Investment, interest rate, paid in cash		12.70%	[1],[2],[3],[4],[15]	13.20%	[6],[7],[9],[10],[18]
Investment, Identifier [Axis]: ALS Education, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 0	[16],[17],[21]	$ 0	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	0
Ending Balance		0	[21]	0	[22]
Line of credit facility, available		$ 3,000,000	[1],[2],[3],[4],[21]	$ 3,000,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		6.80%	[1],[2],[3],[4],[21]	7.00%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.60%	[1],[2],[3],[4],[21]	12.30%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: ALS Education, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 31,680,000	[16],[17],[21]	$ 18,700,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	18,700,000
Ending Balance		$ 31,997,000	[21]	$ 18,700,000	[22]
Investment, reference rate and spread		6.80%	[1],[2],[3],[4],[21]	7.00%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.60%	[1],[2],[3],[4],[21]	12.30%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Antenna Research Associates, Inc. – Common Equity Units
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		4,283	[16],[17],[23],[24],[25]	4,283	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 18,436,000
Ending Balance		59,423,000	[23],[24],[25]	$ 18,436,000	[26],[27]
Investment, Identifier [Axis]: Antenna Research Associates, Inc. – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[23],[25]	31,267,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[23],[25]	$ 31,267,000
Investment, reference rate and spread	[1],[2],[3],[4],[23],[25]	10.00%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[23],[25]	14.80%
Investment, Identifier [Axis]: Antenna Research Associates, Inc. – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[27]			30,048,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[27]	$ 30,048,000
Ending Balance	[27]			$ 30,048,000
Investment, reference rate and spread	[6],[7],[9],[10],[27]			10.00%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[27]			15.30%
Investment, Identifier [Axis]: Arc Drilling Holdings LLC – Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		53,333	[16],[17],[24],[25]	15,000	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 403,000
Ending Balance		4,816,000	[24],[25]	$ 403,000	[26],[27]
Investment, Identifier [Axis]: Arc Drilling Holdings LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		1,000,000	[16],[17],[21]	0	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	0
Ending Balance		1,000,000	[21]	0	[22]
Line of credit facility, available		$ 4,000,000	[1],[2],[3],[4],[21]	$ 1,000,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		7.00%	[1],[2],[3],[4],[21]	11.50%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.80%	[1],[2],[3],[4],[21]	10.50%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Arc Drilling Holdings LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 16,000,000	[16],[17],[21]	$ 5,928,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	5,724,000
Ending Balance		$ 16,000,000	[21]	$ 5,724,000	[22]
Investment, reference rate and spread		7.00%	[1],[2],[3],[4],[21]	11.50%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.80%	[1],[2],[3],[4],[21]	10.50%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Axios Industrial Group, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22]			$ 11,550,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	$ 11,291,000
Ending Balance	[22]			$ 11,291,000
Investment, reference rate and spread	[6],[7],[9],[10],[22]			8.60%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22]			13.90%
Investment, Identifier [Axis]: Axios Industrial Group, LLC – Term Debt 1
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	11,325,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	$ 11,357,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	9.60%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	14.40%
Investment, Identifier [Axis]: Axios Industrial Group, LLC – Term Debt 2
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	$ 3,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	$ 3,008,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	12.60%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	17.40%
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Common Stock Warrant
Investments in and Advances to Affiliates, Activity [Line Items]
Units		1.50%	[16],[17],[24],[25],[28]	1.50%	[19],[20],[26],[27],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27],[29]	$ 0
Ending Balance		0	[24],[25],[28]	$ 0	[26],[27],[29]
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22],[29]			1,200,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[29]	978,000
Ending Balance	[22],[29]			978,000
Line of credit facility, available	[6],[7],[9],[10],[22],[29]			$ 0
Investment, reference rate and spread	[6],[7],[9],[10],[22],[29]			2.00%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22],[29]			7.30%
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Line of Credit 1
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[25],[28],[30]	1,320,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[25],[28],[30]	471,000
Line of credit facility, available	[1],[2],[3],[4],[25],[28],[30]	$ 0
Investment, reference rate and spread	[1],[2],[3],[4],[25],[28],[30]	2.00%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[25],[28],[30]	7.00%
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Line of Credit 2
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[25],[28],[30]	$ 323,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[25],[28],[30]	115,000
Line of credit facility, available	[1],[2],[3],[4],[25],[28],[30]	$ 127,000
Investment, reference rate and spread	[1],[2],[3],[4],[25],[28],[30]	2.00%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[25],[28],[30]	7.00%
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares	[19],[20],[26],[27],[29]			6,130
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27],[29]	$ 0
Ending Balance	[26],[27],[29]			$ 0
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		6,000,000	[16],[17],[25],[28],[30]	6,000,000	[19],[20],[22],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[29]	4,890,000
Ending Balance		$ 2,139,000	[25],[28],[30]	$ 4,890,000	[22],[29]
Investment, reference rate and spread		2.00%	[1],[2],[3],[4],[25],[28],[30]	2.00%	[6],[7],[9],[10],[22],[29]
Investment, interest rate, paid in cash		7.00%	[1],[2],[3],[4],[25],[28],[30]	7.30%	[6],[7],[9],[10],[22],[29]
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.(S) – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares	[16],[17],[24],[25],[28]	6,130
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[24],[25],[28]	$ 0
Investment, Identifier [Axis]: CHA Holdings, Inc. – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[18],[19],[20],[31]			$ 3,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[18],[31]	2,820,000
Ending Balance	[18],[31]			$ 2,820,000
Investment, reference rate and spread	[6],[7],[9],[10],[18],[31]			9.00%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[18],[31]			14.40%
Investment, Identifier [Axis]: Cafe Zupas – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		1,050,000	[16],[17],[21]	$ 0	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	0
Ending Balance		1,061,000	[21]	0	[22]
Line of credit facility, available		$ 700,000	[1],[2],[3],[4],[21]	$ 1,500,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		7.50%	[1],[2],[3],[4],[21]	6.80%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.30%	[1],[2],[3],[4],[21]	12.10%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Café Zupas – Delayed Draw Term Loan
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 7,350,000	[16],[17],[21]	$ 7,970,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	7,850,000
Ending Balance		7,424,000	[21]	7,850,000	[22]
Line of credit facility, available		$ 3,150,000	[1],[2],[3],[4],[21]	$ 2,070,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		7.50%	[1],[2],[3],[4],[21]	6.80%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.30%	[1],[2],[3],[4],[21]	12.10%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Café Zupas – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 26,250,000	[16],[17],[21]	$ 23,460,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	23,108,000
Ending Balance		$ 26,513,000	[21]	$ 23,108,000	[22]
Investment, reference rate and spread		7.50%	[1],[2],[3],[4],[21]	6.80%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.30%	[1],[2],[3],[4],[21]	12.10%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Canopy Safety Brands, LLC – Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		1,170,370	[16],[17],[24],[25]	1,170,370	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 2,404,000
Ending Balance		$ 2,959,000	[24],[25]	$ 2,404,000	[26],[27]
Investment, Identifier [Axis]: Canopy Safety Brands, LLC – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		500,000	[16],[17],[24],[25]	500,000	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 857,000
Ending Balance		$ 931,000	[24],[25]	$ 857,000	[26],[27]
Investment, Identifier [Axis]: Canopy Safety Brands, LLC—Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		1,170,370
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		2,404,000
Gross Additions		0
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		555,000
Ending Balance		$ 2,959,000		2,404,000
Investment, Identifier [Axis]: Canopy Safety Brands, LLC—Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		500,000
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		857,000
Gross Additions		0
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		74,000
Ending Balance		931,000		857,000
Investment, Identifier [Axis]: DKI Ventures, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		350,000	[16],[17],[25],[32]	205,000	[19],[20],[22],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[33]	113,000
Ending Balance		159,000	[25],[32]	113,000	[22],[33]
Line of credit facility, available		$ 25,000	[1],[2],[3],[4],[25],[32]	$ 170,000	[6],[7],[9],[10],[22],[33]
Investment, interest rate, paid in cash		9.00%	[1],[2],[3],[4],[25],[32]	9.00%	[6],[7],[9],[10],[22],[33]
Investment, Identifier [Axis]: DKI Ventures, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 5,915,000	[16],[17],[25],[32]	$ 5,915,000	[19],[20],[22],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[33]	3,253,000
Ending Balance		$ 2,684,000	[25],[32]	$ 3,253,000	[22],[33]
Investment, interest rate, paid in cash		9.00%	[1],[2],[3],[4],[25],[32]	9.00%	[6],[7],[9],[10],[22],[33]
Investment, Identifier [Axis]: Defiance Integrated Technologies, Inc. – Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		33,321	[16],[17],[24],[25]	33,321	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 3,948,000
Ending Balance		2,949,000	[24],[25]	$ 3,948,000	[26],[27]
Investment, Identifier [Axis]: Defiance Integrated Technologies, Inc. – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		8,547,000	[16],[17],[25]	7,425,000	[19],[20],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[27]	7,425,000
Ending Balance		$ 8,547,000	[25]	$ 7,425,000	[27]
Investment, reference rate and spread		9.60%	[1],[2],[3],[4],[25]	9.60%	[6],[7],[9],[10],[27]
Investment, interest rate, paid in cash		14.40%	[1],[2],[3],[4],[25]	14.90%	[6],[7],[9],[10],[27]
Investment, Identifier [Axis]: Defiance Integrated Technologies, Inc.—Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		33,321
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		3,948,000
Gross Additions		1,000
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		(1,000,000)
Ending Balance		2,949,000		$ 3,948,000
Investment, Identifier [Axis]: Defiance Integrated Technologies, Inc.—Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		8,547,000
Net Realized Gain (Loss) for Period		0
Amount of Investment Income		1,143,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		7,425,000
Gross Additions		1,362,000
Gross Reductions		(240,000)
Net Unrealized Appreciation (Depreciation)		0
Ending Balance		8,547,000		7,425,000
Investment, Identifier [Axis]: ENET Holdings, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	0
Line of credit facility, available	[1],[2],[3],[4],[21]	$ 2,500,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	7.30%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	12.10%
Investment, Identifier [Axis]: ENET Holdings, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 22,289,000	[16],[17],[21]	22,289,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	21,397,000
Ending Balance		$ 21,973,000	[21]	$ 21,397,000	[22]
Investment, reference rate and spread		7.30%	[1],[2],[3],[4],[21]	8.30%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.10%	[1],[2],[3],[4],[21]	13.60%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc. – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		5,466	[16],[17],[24],[25],[28]	5,466	[19],[20],[26],[27],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27],[29]	$ 0
Ending Balance		0	[24],[25],[28]	$ 0	[26],[27],[29]
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc. – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		6,140,000	[16],[17],[25],[28],[30]	6,140,000	[19],[20],[27],[29],[34]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[27],[29],[34]	2,895,000
Ending Balance		$ 380,000	[25],[28],[30]	$ 2,895,000	[27],[29],[34]
Investment, reference rate and spread		5.50%	[1],[2],[3],[4],[25],[28],[30]	5.50%	[6],[7],[9],[10],[27],[29],[34]
Investment, interest rate, paid in cash		10.30%	[1],[2],[3],[4],[25],[28],[30]	10.80%	[6],[7],[9],[10],[27],[29],[34]
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc.—Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		5,466
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		0
Gross Additions		0
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		0
Ending Balance		0		$ 0
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc.—Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		6,140,000
Net Realized Gain (Loss) for Period		0
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		2,895,000
Gross Additions		0
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		(2,515,000)
Ending Balance		380,000		2,895,000
Investment, Identifier [Axis]: Eegee’s LLC – Delayed Draw Term Loan
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		3,145,000	[16],[17],[21]	3,000,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	2,865,000
Ending Balance		2,380,000	[21]	2,865,000	[22]
Line of credit facility, available		$ 0	[1],[2],[3],[4],[21]	$ 4,500,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		7.80%	[1],[2],[3],[4],[21]	7.80%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		8.00%	[1],[2],[3],[4],[21]	13.10%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Eegee’s LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 1,500,000	[16],[17],[21]	$ 0	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	0
Ending Balance		1,135,000	[21]	0	[22]
Line of credit facility, available		$ 500,000	[1],[2],[3],[4],[21]	$ 1,000,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		7.80%	[1],[2],[3],[4],[21]	7.80%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.60%	[1],[2],[3],[4],[21]	13.10%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Eegee’s LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 17,824,000	[16],[17],[21]	$ 17,000,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	16,235,000
Ending Balance		$ 13,486,000	[21]	$ 16,235,000	[22]
Investment, reference rate and spread		7.80%	[1],[2],[3],[4],[21]	7.80%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		8.00%	[1],[2],[3],[4],[21]	13.10%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Encore Dredging Holdings, LLC – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		3,840,000	[16],[17],[24],[25]	3,840,000	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 4,265,000
Ending Balance		$ 3,168,000	[24],[25]	$ 4,265,000	[26],[27]
Investment, Identifier [Axis]: Encore Dredging Holdings, LLC—Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		3,840,000
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		4,265,000
Gross Additions		0
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		(1,097,000)
Ending Balance		$ 3,168,000		$ 4,265,000
Investment, Identifier [Axis]: Engineering Manufacturing Technologies, LLC – Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		6,000	[16],[17],[24],[25]	6,000	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 0
Ending Balance		0	[24],[25]	$ 0	[26],[27]
Investment, Identifier [Axis]: Engineering Manufacturing Technologies, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		0	[16],[17],[25]	0	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	0
Ending Balance		0	[25]	0	[22]
Line of credit facility, available		$ 3,000,000	[1],[2],[3],[4],[25]	$ 3,000,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		8.30%	[1],[2],[3],[4],[25]	8.30%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		13.10%	[1],[2],[3],[4],[25]	13.60%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Engineering Manufacturing Technologies, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[25]	$ 22,230,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[25]	$ 19,283,000
Investment, reference rate and spread	[1],[2],[3],[4],[25]	8.30%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[25]	10.00%
Investment, Identifier [Axis]: Engineering Manufacturing Technologies, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22]			$ 21,500,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	$ 19,726,000
Ending Balance	[22]			$ 19,726,000
Investment, reference rate and spread	[6],[7],[9],[10],[22]			8.30%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22]			13.60%
Investment, Identifier [Axis]: FES Resources Holdings LLC – Common Equity Units
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		6,233	[16],[17],[24],[25]	6,233	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 0
Ending Balance		$ 0	[24],[25]	$ 0	[26],[27]
Investment, Identifier [Axis]: FES Resources Holdings LLC – Preferred Equity Units
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		6,350	[16],[17],[24],[25]	6,350	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 4,508,000
Ending Balance		0	[24],[25]	$ 4,508,000	[26],[27]
Investment, Identifier [Axis]: FES Resources Holdings LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[25],[32]	325,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[25],[32]	$ 163,000
Investment, interest rate, paid in cash	[1],[2],[3],[4],[25],[32]	4.50%
Investment, Identifier [Axis]: Fix-It Group, LLC – Delayed Draw Term Loan
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 6,781,000	[16],[17],[21]	6,911,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	6,894,000
Ending Balance		6,781,000	[21]	6,894,000	[22]
Line of credit facility, available		$ 0	[1],[2],[3],[4],[21]	$ 0	[6],[7],[9],[10],[22]
Investment, reference rate and spread		7.10%	[1],[2],[3],[4],[21]	8.10%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.90%	[1],[2],[3],[4],[21]	13.40%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Fix-It Group, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 0	[16],[17],[21]	$ 500,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	499,000
Ending Balance		0	[21]	499,000	[22]
Line of credit facility, available		$ 3,000,000	[1],[2],[3],[4],[21]	$ 2,500,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		7.10%	[1],[2],[3],[4],[21]	8.10%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.90%	[1],[2],[3],[4],[21]	13.40%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Fix-It Group, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 13,324,000	[16],[17],[21]	$ 12,200,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	12,170,000
Ending Balance		$ 13,457,000	[21]	$ 12,170,000	[22]
Investment, reference rate and spread		7.10%	[1],[2],[3],[4],[21]	8.10%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.90%	[1],[2],[3],[4],[21]	13.40%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Frontier Financial Group Inc. – Convertible Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 198,000	[16],[17],[25],[32]	$ 198,000	[19],[20],[27],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[27],[33]	24,000
Ending Balance		$ 32,000	[25],[32]	$ 24,000	[27],[33]
Investment, interest rate, paid in cash		6.00%	[1],[2],[3],[4],[25],[32]	6.00%	[6],[7],[9],[10],[27],[33]
Investment, Identifier [Axis]: Frontier Financial Group Inc. – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		766	[16],[17],[24],[25]	766	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 0
Ending Balance		$ 0	[24],[25]	$ 0	[26],[27]
Investment, Identifier [Axis]: Frontier Financial Group Inc. – Preferred Stock Warrant
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		168	[16],[17],[24],[25]	168	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 0
Ending Balance		0	[24],[25]	$ 0	[26],[27]
Investment, Identifier [Axis]: Funko Acquisition Holdings, LLC(S) – Common Units
Investments in and Advances to Affiliates, Activity [Line Items]
Shares	[19],[20],[26],[29],[35]			4,239
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[29],[35]	$ 22,000
Ending Balance	[26],[29],[35]			$ 22,000
Investment, Identifier [Axis]: GFRC 360, LLC – Common Stock Warrants
Investments in and Advances to Affiliates, Activity [Line Items]
Units		45.00%	[16],[17],[24],[25]	45.00%	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 0
Ending Balance		0	[24],[25]	$ 0	[26],[27]
Investment, Identifier [Axis]: GFRC 360, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		1,355,000	[16],[17],[21]	1,275,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	1,205,000
Ending Balance		1,355,000	[21]	1,205,000	[22]
Line of credit facility, available		$ 95,000	[1],[2],[3],[4],[21]	$ 175,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		8.00%	[1],[2],[3],[4],[21]	8.00%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.80%	[1],[2],[3],[4],[21]	13.30%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: GFRC 360, LLC – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		1,000	[16],[17],[24],[25]	1,000	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 253,000
Ending Balance		0	[24],[25]	$ 253,000	[26],[27]
Investment, Identifier [Axis]: GFRC 360, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		1,000,000	[16],[17],[21]	1,000,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	945,000
Ending Balance		$ 1,000,000	[21]	$ 945,000	[22]
Investment, reference rate and spread		8.00%	[1],[2],[3],[4],[21]	8.00%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.80%	[1],[2],[3],[4],[21]	13.30%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: GSM MidCo LLC – Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		767	[16],[17],[24],[25]	767	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 1,562,000
Ending Balance		1,583,000	[24],[25]	$ 1,562,000	[26],[27]
Investment, Identifier [Axis]: Giving Home Health Care, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22],[33]			28,800,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[33]	$ 28,800,000
Ending Balance	[22],[33]			$ 28,800,000
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22],[33]			12.50%
Investment, Identifier [Axis]: Giving Home Health Care, LLC – Warrant
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		10,667	[16],[17],[24],[25]	10,667	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 2,794,000
Ending Balance		3,995,000	[24],[25]	$ 2,794,000	[26],[27]
Investment, Identifier [Axis]: Gray Matter Systems, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22],[33]			13,645,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[33]	13,645,000
Ending Balance	[22],[33]			$ 13,645,000
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22],[33]			12.00%
Investment, Identifier [Axis]: HH-Inspire Acquisition, Inc. – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		1,727,000	[16],[17],[21],[36]	$ 1,359,000	[19],[20],[22],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[31]	1,347,000
Ending Balance		1,677,000	[21],[36]	1,347,000	[22],[31]
Line of credit facility, available		$ 110,000	[1],[2],[3],[4],[21],[36]	$ 478,000	[6],[7],[9],[10],[22],[31]
Investment, reference rate and spread		8.00%	[1],[2],[3],[4],[21],[36]	8.00%	[6],[7],[9],[10],[22],[31]
Investment, interest rate, paid in cash		12.80%	[1],[2],[3],[4],[21],[36]	13.40%	[6],[7],[9],[10],[22],[31]
Investment, Identifier [Axis]: HH-Inspire Acquisition, Inc. – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		1,329,054	[16],[17],[24],[25]	1,329,054	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 3,451,000
Ending Balance		1,047,000	[24],[25]	$ 3,451,000	[26],[27]
Investment, Identifier [Axis]: HH-Inspire Acquisition, Inc. – Term Debt 1
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		15,852,000	[16],[17],[21],[36]	16,013,000	[19],[20],[22],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[31]	15,872,000
Ending Balance		$ 15,399,000	[21],[36]	$ 15,872,000	[22],[31]
Investment, reference rate and spread		8.00%	[1],[2],[3],[4],[21],[36]	8.00%	[6],[7],[9],[10],[22],[31]
Investment, interest rate, paid in cash		12.80%	[1],[2],[3],[4],[21],[36]	13.40%	[6],[7],[9],[10],[22],[31]
Investment, Identifier [Axis]: HH-Inspire Acquisition, Inc. – Term Debt 2
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 3,193,000	[16],[17],[21],[36]	$ 3,225,000	[19],[20],[22],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[31]	3,197,000
Ending Balance		$ 3,102,000	[21],[36]	$ 3,197,000	[22],[31]
Investment, reference rate and spread		8.00%	[1],[2],[3],[4],[21],[36]	8.00%	[6],[7],[9],[10],[22],[31]
Investment, interest rate, paid in cash		12.80%	[1],[2],[3],[4],[21],[36]	13.40%	[6],[7],[9],[10],[22],[31]
Investment, Identifier [Axis]: Imperative Holdings Corporation – Preferred Equity Units
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		972,569	[16],[17],[24],[25]	972,569	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 2,318,000
Ending Balance		2,275,000	[24],[25]	$ 2,318,000	[26],[27]
Investment, Identifier [Axis]: Imperative Holdings Corporation – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		18,015,000	[16],[17],[21]	21,015,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	20,858,000
Ending Balance		$ 18,015,000	[21]	$ 20,858,000	[22]
Investment, reference rate and spread		9.80%	[1],[2],[3],[4],[21]	9.80%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		14.60%	[1],[2],[3],[4],[21]	15.10%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Leadpoint Business Services, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 25,500,000	[16],[17],[21]	$ 13,500,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	13,399,000
Ending Balance		$ 26,010,000	[21]	$ 13,399,000	[22]
Investment, reference rate and spread		8.50%	[1],[2],[3],[4],[21]	8.50%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		13.30%	[1],[2],[3],[4],[21]	13.80%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Leeds Novamark Capital I, L.P. – Limited Partnership Interest
Investments in and Advances to Affiliates, Activity [Line Items]
Units		3.50%	[16],[17],[24],[37],[38]	3.50%	[19],[20],[26],[39],[40]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[39],[40]	$ 231,000
Ending Balance		38,000	[24],[37],[38]	$ 231,000	[26],[39],[40]
Line of credit facility, available		843,000	[1],[2],[3],[4],[24],[37],[38]	843,000	[6],[7],[9],[10],[26],[39],[40]
Investment, Identifier [Axis]: Lonestar EMS, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		4,200,000	[16],[17],[25],[32]	3,927,000	[19],[20],[27],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[27],[33]	3,927,000
Ending Balance		$ 4,200,000	[25],[32]	3,927,000	[27],[33]
Investment, interest rate, paid in cash	[1],[2],[3],[4],[25],[32]	12.00%
Investment, Identifier [Axis]: Lonestar EMS, LLC - Common Units
Investments in and Advances to Affiliates, Activity [Line Items]
Units		100.00%
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		0
Gross Additions		0
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		8,214,000
Ending Balance		$ 8,214,000		$ 0
Investment, Identifier [Axis]: Lonestar EMS, LLC – Common Units
Investments in and Advances to Affiliates, Activity [Line Items]
Units		100.00%	[16],[17],[24],[25]	100.00%	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 0
Ending Balance		8,214,000	[24],[25]	$ 0	[26],[27]
Investment, Identifier [Axis]: Lonestar EMS, LLC — Delayed Draw Term Loan
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		0
Net Realized Gain (Loss) for Period		0
Amount of Investment Income		8,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		0
Gross Additions		100,000
Gross Reductions		(100,000)
Net Unrealized Appreciation (Depreciation)		0
Ending Balance		0		0
Investment, Identifier [Axis]: Lonestar EMS, LLC—Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		4,200,000
Net Realized Gain (Loss) for Period		0
Amount of Investment Income		394,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		3,927,000
Gross Additions		203,000
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		70,000
Ending Balance		$ 4,200,000		$ 3,927,000
Investment, Identifier [Axis]: MCG Energy Solutions, LLC – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		7,000,000	[16],[17],[24],[25]	7,000,000	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 8,904,000
Ending Balance		9,954,000	[24],[25]	$ 8,904,000	[26],[27]
Investment, Identifier [Axis]: MCG Energy Solutions, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		20,290,000	[16],[17],[25]	20,146,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	17,628,000
Ending Balance		$ 20,290,000	[25]	$ 17,628,000	[22]
Investment, reference rate and spread		7.60%	[1],[2],[3],[4],[25]	7.60%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.40%	[1],[2],[3],[4],[25]	12.90%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: NeoGraf Solutions LLC – Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		2,000,000	[16],[17],[24],[25]	2,000,000	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 0
Ending Balance		859,000	[24],[25]	$ 0	[26],[27]
Investment, Identifier [Axis]: NeoGraf Solutions LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	0
Line of credit facility, available		$ 4,500,000	[1],[2],[3],[4],[21]	$ 4,500,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		7.00%	[1],[2],[3],[4],[21]	7.00%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.00%	[1],[2],[3],[4],[21]	11.00%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: NeoGraf Solutions LLC – Line of Credit, $4,500 available
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22]			$ 0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	$ 0
Ending Balance	[22]			0
Investment, Identifier [Axis]: NeoGraf Solutions LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	27,524,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	$ 26,350,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	7.00%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	11.00%
Investment, Identifier [Axis]: NeoGraf Solutions LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22]			27,154,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	$ 26,000,000
Ending Balance	[22]			$ 26,000,000
Investment, reference rate and spread	[6],[7],[9],[10],[22]			7.00%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22]			11.00%
Investment, Identifier [Axis]: OCI, LLC – Common Units
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		306	[16],[17],[24],[25]	306	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 0
Ending Balance		0	[24],[25]	$ 0	[26],[27]
Investment, Identifier [Axis]: OCI, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22]			20,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	19,800,000
Ending Balance	[22]			$ 19,800,000
Investment, reference rate and spread	[6],[7],[9],[10],[22]			7.50%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22]			12.80%
Investment, Identifier [Axis]: OCI, LLC – Term Debt 1
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	18,500,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	$ 18,685,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	7.50%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	12.30%
Investment, Identifier [Axis]: OCI, LLC – Term Debt 2
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 2,159,000	[16],[17],[21],[32]	$ 2,012,000	[19],[20],[22],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[33]	1,992,000
Ending Balance		$ 2,303,000	[21],[32]	$ 1,992,000	[22],[33]
Investment, interest rate, paid in cash		7.00%	[1],[2],[3],[4],[21],[32]	7.00%	[6],[7],[9],[10],[22],[33]
Investment, Identifier [Axis]: Ohio Armor Holdings, LLC – Common Equity
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		100	[16],[17],[24],[25]	100	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 680,000
Ending Balance		1,086,000	[24],[25]	$ 680,000	[26],[27]
Investment, Identifier [Axis]: Ohio Armor Holdings, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	16,563,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	$ 16,563,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	8.00%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	12.80%
Investment, Identifier [Axis]: Ohio Armor Holdings, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22]			17,738,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	$ 17,294,000
Ending Balance	[22]			$ 17,294,000
Investment, reference rate and spread	[6],[7],[9],[10],[22]			8.00%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22]			13.30%
Investment, Identifier [Axis]: PIC 360, LLC – Common Equity Units
Investments in and Advances to Affiliates, Activity [Line Items]
Shares	[19],[20],[26],[27]			750
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 284,000
Ending Balance	[26],[27]			$ 284,000
Investment, Identifier [Axis]: PIC 360, LLC—Common Equity Units
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		0
Net Realized Gain (Loss) for Period		$ 259,000
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		284,000
Gross Additions		0
Gross Reductions		(1,000)
Net Unrealized Appreciation (Depreciation)		(283,000)
Ending Balance		0		284,000
Investment, Identifier [Axis]: Pansophic Learning, Ltd. – Term Debt 1
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22],[31]			28,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[31]	27,965,000
Ending Balance	[22],[31]			$ 27,965,000
Investment, reference rate and spread	[6],[7],[9],[10],[22],[31]			7.50%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22],[31]			12.90%
Investment, Identifier [Axis]: Pansophic Learning, Ltd. – Term Debt 2
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22],[31]			$ 5,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[31]	4,994,000
Ending Balance	[22],[31]			$ 4,994,000
Investment, reference rate and spread	[6],[7],[9],[10],[22],[31]			7.50%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22],[31]			12.90%
Investment, Identifier [Axis]: Perimeter Solutions Group – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21],[23]	15,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21],[23]	$ 15,000,000
Investment, reference rate and spread	[1],[2],[3],[4],[21],[23]	8.50%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21],[23]	13.30%
Investment, Identifier [Axis]: Quality Environmental Midco, Inc. – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21],[32]	$ 0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21],[32]	0
Line of credit facility, available	[1],[2],[3],[4],[21],[32]	$ 3,000,000
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21],[32]	12.00%
Investment, Identifier [Axis]: Quality Environmental Midco, Inc. – Preferred Equity
Investments in and Advances to Affiliates, Activity [Line Items]
Shares	[16],[17],[24],[25]	3,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[24],[25]	$ 3,582,000
Investment, Identifier [Axis]: Quality Environmental Midco, Inc. – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21],[32]	13,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21],[32]	$ 13,390,000
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21],[32]	12.00%
Investment, Identifier [Axis]: RPM Freight Systems, LLC – Delayed Draw Term Loan
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	$ 0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	0
Line of credit facility, available	[1],[2],[3],[4],[21]	$ 5,000,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	7.70%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	12.50%
Investment, Identifier [Axis]: RPM Freight Systems, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	$ 20,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	$ 20,200,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	7.70%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	12.50%
Investment, Identifier [Axis]: Salt & Straw, LLC – Common Warrant
Investments in and Advances to Affiliates, Activity [Line Items]
Units		0.40%	[16],[17],[24],[25]	0.40%	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 31,000
Ending Balance		47,000	[24],[25]	$ 31,000	[26],[27]
Investment, Identifier [Axis]: Salt & Straw, LLC – Delayed Draw Term Loan
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		10,850,000	[16],[17],[21]	10,200,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	9,715,000
Ending Balance		10,850,000	[21]	9,715,000	[22]
Line of credit facility, available		$ 3,500,000	[1],[2],[3],[4],[21]	$ 1,300,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		9.10%	[1],[2],[3],[4],[21]	9.10%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		13.90%	[1],[2],[3],[4],[21]	14.40%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Salt & Straw, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 0	[16],[17],[21]	$ 0	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	0
Ending Balance		0	[21]	0	[22]
Line of credit facility, available		$ 2,000,000	[1],[2],[3],[4],[21]	$ 2,000,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		9.10%	[1],[2],[3],[4],[21]	9.10%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		13.90%	[1],[2],[3],[4],[21]	14.40%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Salt & Straw, LLC – Preferred Equity
Investments in and Advances to Affiliates, Activity [Line Items]
Shares	[16],[17],[24],[25]	7,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[24],[25]	$ 9,450,000
Investment, Identifier [Axis]: Salvo Technologies, Inc. – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares	[19],[20],[26],[27]			2,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	1,225,000
Ending Balance	[26],[27]			$ 1,225,000
Investment, Identifier [Axis]: Salvo Technologies, Inc. – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22]			11,768,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	$ 10,900,000
Ending Balance	[22]			$ 10,900,000
Investment, reference rate and spread	[6],[7],[9],[10],[22]			9.50%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22]			14.80%
Investment, Identifier [Axis]: Sea Link International IRB, Inc. – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		98,039	[16],[17],[24],[25]	98,039	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 183,000
Ending Balance		220,000	[24],[25]	$ 183,000	[26],[27]
Investment, Identifier [Axis]: Sea Link International IRB, Inc. – Term Debt 1
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		12,331,000	[16],[17],[21],[32]	12,083,000	[19],[20],[22],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[33]	11,675,000
Ending Balance		$ 12,331,000	[21],[32]	$ 11,675,000	[22],[33]
Investment, interest rate, paid in cash		11.30%	[1],[2],[3],[4],[21],[32]	11.30%	[6],[7],[9],[10],[22],[33]
Investment, Identifier [Axis]: Sea Link International IRB, Inc. – Term Debt 2
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 4,079,000	[16],[17],[21],[32]	$ 4,000,000	[19],[20],[22],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[33]	4,000,000
Ending Balance		$ 4,079,000	[21],[32]	$ 4,000,000	[22],[33]
Investment, interest rate, paid in cash		12.00%	[1],[2],[3],[4],[21],[32]	12.00%	[6],[7],[9],[10],[22],[33]
Investment, Identifier [Axis]: Sea Link International IRB, Inc.– Common Equity Units
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		823,333	[16],[17],[24],[25]	823,333	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 340,000
Ending Balance		$ 160,000	[24],[25]	$ 340,000	[26],[27]
Investment, Identifier [Axis]: Sokol & Company Holdings, LLC – Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		1,500,000	[16],[17],[24],[25]	1,500,000	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 1,612,000
Ending Balance		2,727,000	[24],[25]	$ 1,612,000	[26],[27]
Investment, Identifier [Axis]: Sokol & Company Holdings, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		8,500,000	[16],[17],[21]	13,500,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	13,095,000
Ending Balance		$ 8,500,000	[21]	$ 13,095,000	[22]
Investment, reference rate and spread		6.80%	[1],[2],[3],[4],[21]	7.00%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.60%	[1],[2],[3],[4],[21]	12.30%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: SpaceCo Holdings, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 2,000,000	[16],[17],[21],[36]	$ 1,450,000	[19],[20],[22],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[31]	1,434,000
Ending Balance		2,000,000	[21],[36]	1,434,000	[22],[31]
Line of credit facility, available		$ 0	[1],[2],[3],[4],[21],[36]	$ 550,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		6.40%	[1],[2],[3],[4],[21],[36]	7.20%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.00%	[1],[2],[3],[4],[21],[36]	12.50%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: SpaceCo Holdings, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 42,757,000	[16],[17],[21],[36]	$ 30,284,000	[19],[20],[22],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[31]	29,944,000
Ending Balance		$ 42,757,000	[21],[36]	$ 29,944,000	[22],[31]
Investment, reference rate and spread		6.40%	[1],[2],[3],[4],[21],[36]	7.20%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.00%	[1],[2],[3],[4],[21],[36]	12.50%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Springfield, Inc. – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 30,000,000	[16],[17],[21]	$ 30,000,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	29,850,000
Ending Balance		$ 30,000,000	[21]	$ 29,850,000	[22]
Investment, reference rate and spread		11.10%	[1],[2],[3],[4],[21]	10.10%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		15.90%	[1],[2],[3],[4],[21]	15.40%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: TNCP Intermediate HoldCo, LLC – Common Equity Units
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		790,000	[16],[17],[24],[25]	790,000	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 3,073,000
Ending Balance		4,312,000	[24],[25]	$ 3,073,000	[26],[27]
Investment, Identifier [Axis]: TNCP Intermediate HoldCo, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		0	[16],[17],[25],[32]	900,000	[19],[20],[27],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[27],[33]	900,000
Ending Balance		0	[25],[32]	900,000	[27],[33]
Line of credit facility, available	[6],[7],[9],[10],[27],[33]			$ 1,100,000
Investment, interest rate, paid in cash	[6],[7],[9],[10],[27],[33]			8.00%
Investment, Identifier [Axis]: TNCP Intermediate HoldCo, LLC—-Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		0
Net Realized Gain (Loss) for Period		0
Amount of Investment Income		68,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		900,000
Gross Additions		0
Gross Reductions		(900,000)
Net Unrealized Appreciation (Depreciation)		0
Ending Balance		0		$ 900,000
Line of credit facility, available	[1],[2],[3],[4],[25],[32]	$ 2,000,000
Investment, interest rate, paid in cash	[1],[2],[3],[4],[25],[32]	11.00%
Investment, Identifier [Axis]: TNCP Intermediate HoldCo, LLC—Common Equity Units
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		790,000
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		3,073,000
Gross Additions		0
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		1,239,000
Ending Balance		4,312,000		3,073,000
Investment, Identifier [Axis]: Tailwind Smith Cooper Intermediate Corporation – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[18],[19],[20],[31]			5,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[18],[31]	$ 4,294,000
Ending Balance	[18],[31]			$ 4,294,000
Investment, reference rate and spread	[6],[7],[9],[10],[18],[31]			9.00%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[18],[31]			14.40%
Investment, Identifier [Axis]: Technical Resource Management, LLC – Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		2,000,000	[16],[17],[24],[25]	2,000,000	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 1,415,000
Ending Balance		34,000	[24],[25]	$ 1,415,000	[26],[27]
Investment, Identifier [Axis]: Technical Resource Management, LLC – Delayed Draw Term Loan
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22]			0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	0
Ending Balance	[22]			0
Line of credit facility, available	[6],[7],[9],[10],[22]			$ 2,500,000
Investment, reference rate and spread	[6],[7],[9],[10],[22]			8.00%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22]			13.30%
Investment, Identifier [Axis]: Technical Resource Management, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		2,000,000	[16],[17],[21]	$ 2,000,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	1,970,000
Ending Balance		2,008,000	[21]	1,970,000	[22]
Line of credit facility, available		$ 1,000,000	[1],[2],[3],[4],[21]	$ 1,000,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		8.00%	[1],[2],[3],[4],[21]	8.00%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.80%	[1],[2],[3],[4],[21]	13.30%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Technical Resource Management, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 23,234,000	[16],[17],[21]	$ 23,000,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	22,655,000
Ending Balance		$ 23,327,000	[21]	$ 22,655,000	[22]
Investment, reference rate and spread		8.00%	[1],[2],[3],[4],[21]	8.00%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.80%	[1],[2],[3],[4],[21]	13.30%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Torrent Photonics Holdco LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	$ 12,149,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	$ 12,265,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	9.50%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	14.30%
Investment, Identifier [Axis]: Torrent Photonics Holdco LLC – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares	[16],[17],[24],[25]	2,650
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[24],[25]	$ 552,000
Investment, Identifier [Axis]: Total Access Elevator, LLC – Common Equity
Investments in and Advances to Affiliates, Activity [Line Items]
Shares	[16],[17],[24],[25]	750,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[24],[25]	$ 1,234,000
Investment, Identifier [Axis]: Total Access Elevator, LLC – Delayed Draw Term Loan
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	0
Line of credit facility, available	[1],[2],[3],[4],[21]	$ 2,500,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	6.90%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	11.70%
Investment, Identifier [Axis]: Total Access Elevator, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	$ 0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	0
Line of credit facility, available	[1],[2],[3],[4],[21]	$ 3,000,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	6.90%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	11.70%
Investment, Identifier [Axis]: Total Access Elevator, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	$ 6,500,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	$ 6,695,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	6.90%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	11.70%
Investment, Identifier [Axis]: Total Safety Holdings, LLC – Common Equity
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		435	[16],[17],[24],[25]	435	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 146,000
Ending Balance		$ 101,000	[24],[25]	$ 146,000	[26],[27]
Investment, Identifier [Axis]: Triple H Food Processors, LLC – Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		250,000	[16],[17],[24],[25]	250,000	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 1,641,000
Ending Balance		$ 1,346,000	[24],[25]	$ 1,641,000	[26],[27]
Investment, Identifier [Axis]: Triple H Food Processors, LLC – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		75	[16],[17],[24],[25]	75	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 141,000
Ending Balance		167,000	[24],[25]	$ 141,000	[26],[27]
Investment, Identifier [Axis]: Trowbridge Chicago, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22]			0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	0
Ending Balance	[22]			0
Line of credit facility, available	[6],[7],[9],[10],[22]			$ 2,000,000
Investment, reference rate and spread	[6],[7],[9],[10],[22]			7.00%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22]			12.30%
Investment, Identifier [Axis]: Trowbridge Chicago, LLC – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares	[19],[20],[26],[27]			242,105
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	750,000
Ending Balance	[26],[27]			$ 750,000
Investment, Identifier [Axis]: Trowbridge Chicago, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22]			5,750,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	5,664,000
Ending Balance	[22]			$ 5,664,000
Investment, reference rate and spread	[6],[7],[9],[10],[22]			7.00%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22]			12.30%
Investment, Identifier [Axis]: Turn Key Health Clinics, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		0	[16],[17],[21]	$ 500,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	499,000
Ending Balance		0	[21]	499,000	[22]
Line of credit facility, available		$ 4,000,000	[1],[2],[3],[4],[21]	$ 1,500,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		7.30%	[1],[2],[3],[4],[21]	7.30%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.10%	[1],[2],[3],[4],[21]	12.60%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Turn Key Health Clinics, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 17,500,000	[16],[17],[21]	$ 11,000,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	10,986,000
Ending Balance		$ 17,500,000	[21]	$ 10,986,000	[22]
Investment, reference rate and spread		7.30%	[1],[2],[3],[4],[21]	7.30%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		12.10%	[1],[2],[3],[4],[21]	12.60%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Unirac Holdings, Inc. – Delayed Draw Term Loan
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 1,097,000	[16],[17],[21]	$ 1,108,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	1,111,000
Ending Balance		1,108,000	[21]	1,111,000	[22]
Line of credit facility, available		$ 0	[1],[2],[3],[4],[21]	$ 1,669,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		6.50%	[1],[2],[3],[4],[21]	6.50%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.30%	[1],[2],[3],[4],[21]	11.80%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Unirac Holdings, Inc. – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 978,000	[16],[17],[21]	$ 978,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	980,000
Ending Balance		978,000	[21]	980,000	[22]
Line of credit facility, available		$ 1,244,000	[1],[2],[3],[4],[21]	$ 1,244,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		6.50%	[1],[2],[3],[4],[21]	6.50%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.30%	[1],[2],[3],[4],[21]	11.80%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Unirac Holdings, Inc. – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 14,738,000	[16],[17],[21]	$ 14,888,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	14,925,000
Ending Balance		$ 14,885,000	[21]	$ 14,925,000	[22]
Investment, reference rate and spread		6.50%	[1],[2],[3],[4],[21]	6.50%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.30%	[1],[2],[3],[4],[21]	11.80%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Viva Railings, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 0	[16],[17],[21]	$ 0	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	0
Ending Balance		0	[21]	0	[22]
Line of credit facility, available		$ 4,000,000	[1],[2],[3],[4],[21]	$ 4,000,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		7.10%	[1],[2],[3],[4],[21]	7.10%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.90%	[1],[2],[3],[4],[21]	12.40%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: Viva Railings, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[16],[17],[21]	$ 20,202,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[21]	$ 20,202,000
Investment, reference rate and spread	[1],[2],[3],[4],[21]	7.10%
Investment, interest rate, paid in cash	[1],[2],[3],[4],[21]	11.90%
Investment, Identifier [Axis]: Viva Railings, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount	[19],[20],[22]			$ 20,747,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	$ 20,436,000
Ending Balance	[22]			$ 20,436,000
Investment, reference rate and spread	[6],[7],[9],[10],[22]			7.10%
Investment, interest rate, paid in cash	[6],[7],[9],[10],[22]			12.40%
Investment, Identifier [Axis]: WB Xcel Holdings, LLC - Common Warrant
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		1
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		0
Gross Additions		1,000
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		(1,000)
Ending Balance		$ 0		$ 0
Investment, Identifier [Axis]: WB Xcel Holdings, LLC - Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		333
Net Realized Gain (Loss) for Period		$ 0
Amount of Investment Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		0
Gross Additions		0
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		0
Ending Balance		$ 0		0
Investment, Identifier [Axis]: WB Xcel Holdings, LLC – Common Warrant
Investments in and Advances to Affiliates, Activity [Line Items]
Shares	[16],[17],[24],[25]	1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending Balance	[24],[25]	$ 0
Investment, Identifier [Axis]: WB Xcel Holdings, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		4,750,000	[16],[17],[25],[30]	1,468,000	[19],[20],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[27]	1,468,000
Ending Balance		3,171,000	[25],[30]	1,468,000	[27]
Line of credit facility, available		$ 0	[1],[2],[3],[4],[25],[30]	$ 32,000	[6],[7],[9],[10],[27]
Investment, reference rate and spread		10.50%	[1],[2],[3],[4],[25],[30]	10.50%	[6],[7],[9],[10],[27]
Investment, interest rate, paid in cash		15.30%	[1],[2],[3],[4],[25],[30]	15.80%	[6],[7],[9],[10],[27]
Investment, Identifier [Axis]: WB Xcel Holdings, LLC – Preferred Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		333	[16],[17],[24],[25]	333	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 0
Ending Balance		0	[24],[25]	$ 0	[26],[27]
Investment, Identifier [Axis]: WB Xcel Holdings, LLC – Term Debt
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		9,775,000	[16],[17],[25],[30]	9,825,000	[19],[20],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[27]	9,825,000
Ending Balance		$ 6,525,000	[25],[30]	$ 9,825,000	[27]
Investment, reference rate and spread		10.50%	[1],[2],[3],[4],[25],[30]	10.50%	[6],[7],[9],[10],[27]
Investment, interest rate, paid in cash		15.30%	[1],[2],[3],[4],[25],[30]	15.80%	[6],[7],[9],[10],[27]
Investment, Identifier [Axis]: WB Xcel Holdings, LLC—Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 4,750,000
Net Realized Gain (Loss) for Period		0
Amount of Investment Income		59,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		1,468,000
Gross Additions		3,282,000
Gross Reductions		0
Net Unrealized Appreciation (Depreciation)		(1,579,000)
Ending Balance		3,171,000		$ 1,468,000
Investment, Identifier [Axis]: WB Xcel Holdings, LLC—Term Loan
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		9,775,000
Net Realized Gain (Loss) for Period		0
Amount of Investment Income		402,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance		9,825,000
Gross Additions		0
Gross Reductions		(50,000)
Net Unrealized Appreciation (Depreciation)		(3,250,000)
Ending Balance		$ 6,525,000		$ 9,825,000
Investment, Identifier [Axis]: WorkforceQA, LLC – Common Stock
Investments in and Advances to Affiliates, Activity [Line Items]
Shares		532	[16],[17],[24],[25]	532	[19],[20],[26],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[26],[27]	$ 359,000
Ending Balance		346,000	[24],[25]	$ 359,000	[26],[27]
Investment, Identifier [Axis]: WorkforceQA, LLC – Line of Credit
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		1,200,000	[16],[17],[21]	400,000	[19],[20],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22]	400,000
Ending Balance		1,200,000	[21]	400,000	[22]
Line of credit facility, available		$ 800,000	[1],[2],[3],[4],[21]	$ 1,600,000	[6],[7],[9],[10],[22]
Investment, reference rate and spread		6.50%	[1],[2],[3],[4],[21]	6.50%	[6],[7],[9],[10],[22]
Investment, interest rate, paid in cash		11.30%	[1],[2],[3],[4],[21]	11.80%	[6],[7],[9],[10],[22]
Investment, Identifier [Axis]: WorkforceQA, LLC – Term Debt 1
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 16,306,000	[16],[17],[21]	$ 10,000,000	[19],[20],[22],[41]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[41]	9,987,000
Ending Balance		$ 16,306,000	[21]	$ 9,987,000	[22],[41]
Investment, reference rate and spread		6.50%	[1],[2],[3],[4],[21]	8.40%	[6],[7],[9],[10],[22],[41]
Investment, interest rate, paid in cash		11.30%	[1],[2],[3],[4],[21]	13.70%	[6],[7],[9],[10],[22],[41]
Investment, Identifier [Axis]: WorkforceQA, LLC – Term Debt 2
Investments in and Advances to Affiliates, Activity [Line Items]
Principal amount		$ 2,406,000	[16],[17],[21]	$ 1,600,000	[19],[20],[22],[41]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning Balance	[22],[41]	1,598,000
Ending Balance		$ 2,406,000	[21]	$ 1,598,000	[22],[41]
Investment, reference rate and spread		7.50%	[1],[2],[3],[4],[21]	9.30%	[6],[7],[9],[10],[22],[41]
Investment, interest rate, paid in cash		12.30%	[1],[2],[3],[4],[21]	14.60%	[6],[7],[9],[10],[22],[41]
[1] Category percentages represent the fair value of each category and subcategory as a percentage of net assets as of September 30, 2024. [2] Certain of the securities listed in this schedule are issued by affiliate(s) of the indicated portfolio company. The majority of the securities listed, totaling $714.4 million at fair value, are pledged as collateral under our revolving line of credit, as described further in Note 5—Borrowings in the accompanying Notes to Consolidated Financial Statements. Under the Investment Company Act of 1940, as amended (the “1940 Act”), we may not acquire any non-qualifying assets unless, at the time such acquisition is made, qualifying assets represent at least 70% of our total assets. As of September 30, 2024, our investment in Leeds Novamark Capital I, L.P. (“Leeds”) is considered a non-qualifying asset under Section 55 of the 1940 Act. Such non-qualifying assets represent less than 0.1% of total investments, at fair value, as of September 30, 2024. [3] Unless indicated otherwise, all of our investments are valued using Level 3 inputs within the Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”) Topic 820, “Fair Value Measurements and Disclosures” (“ASC 820”) fair value hierarchy. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information. [4] Unless indicated otherwise, all cash interest rates are indexed to one-month Secured Overnight Financing Rate (“SOFR” or “S”), which was 4.85% as of September 30, 2024. If applicable, paid-in-kind (“PIK”) interest rates are noted separately from the cash interest rate. Certain securities are subject to an interest rate floor. The cash interest rate is the greater of the floor or SOFR plus a spread. Due dates represent the contractual maturity date. [5] Cumulative gross unrealized depreciation for federal income tax purposes is $66.1 million; cumulative gross unrealized appreciation for federal income tax purposes is $85.8 million. Cumulative net unrealized appreciation is $19.7 million, based on a tax cost of $776.5 million. [6] Category percentages represent the fair value of each category and subcategory as a percentage of net assets as of September 30, 2023. [7] Certain of the securities listed in this schedule are issued by affiliate(s) of the indicated portfolio company. The majority of the securities listed, totaling $628.3 million at fair value, are pledged as collateral under our revolving line of credit, as described further in Note 5—Borrowings in the accompanying Notes to Consolidated Financial Statements. Under the Investment Company Act of 1940, as amended (the “1940 Act”), we may not acquire any non-qualifying assets unless, at the time such acquisition is made, qualifying assets represent at least 70% of our total assets. As of September 30, 2023, our investments in Leeds Novamark Capital I, L.P. (“Leeds”) and Funko Acquisition Holdings, LLC (“Funko”) are considered non-qualifying assets under Section 55 of the 1940 Act. Such non-qualifying assets represent less than 0.1% of total investments, at fair value, as of September 30, 2023. [8] Cumulative gross unrealized depreciation for federal income tax purposes is $56.9 million; cumulative gross unrealized appreciation for federal income tax purposes is $33.7 million. Cumulative net unrealized depreciation is $23.2 million, based on a tax cost of $728.0 million. [9] Unless indicated otherwise, all of our investments are valued using Level 3 inputs within the Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”) Topic 820, “Fair Value Measurements and Disclosures” (“ASC 820”) fair value hierarchy. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information. [10] Unless indicated otherwise, all cash interest rates are indexed to one-month Secured Overnight Financing Rate (“SOFR” or “S”), which was 5.32% as of September 30, 2023. If applicable, paid-in-kind (“PIK”) interest rates are noted separately from the cash interest rate. Certain securities are subject to an interest rate floor. The cash interest rate is the greater of the floor or SOFR plus a spread. Due dates represent the contractual maturity date. [11] Affiliate investments, as defined by the 1940 Act, are those in which we own, with the power to vote, between and inclusive of 5.0% and 25.0% of the issued and outstanding voting securities. [12] Affiliate investments, as defined by the 1940 Act, are those in which we own, with the power to vote, between and inclusive of 5.0% and 25.0% of the issued and outstanding voting securities. [13] Control investments, as defined by the 1940 Act, are those where we have the power to exercise a controlling influence over the management or policies of the portfolio company, which may include owning, with the power to vote, more than 25.0% of the issued and outstanding voting securities. [14] Control investments, as defined by the 1940 Act, are those where we have the power to exercise a controlling influence over the management or policies of the portfolio company, which may include owning, with the power to vote, more than 25.0% of the issued and outstanding voting securities. [15] Fair value was based on the indicative bid price on or near September 30, 2024, offered by the respective syndication agent’s trading desk. [16] Where applicable, aggregates all shares of a class of stock owned without regard to specific series owned within such class (some series of which may or may not be voting shares) or aggregates all warrants to purchase shares of a class of stock owned without regard to specific series of such class of stock such warrants allow us to purchase. [17] Represents the principal balance for debt investments and the number of shares/units held for equity investments. Warrants are represented as a percentage of ownership, as applicable. [18] Fair value was based on the indicative bid price on or near September 30, 2023, offered by the respective syndication agent’s trading desk. [19] Where applicable, aggregates all shares of a class of stock owned without regard to specific series owned within such class (some series of which may or may not be voting shares) or aggregates all warrants to purchase shares of a class of stock owned without regard to specific series of such class of stock such warrants allow us to purchase. [20] Represents the principal balance for debt investments and the number of shares/units held for equity investments. Warrants are represented as a percentage of ownership, as applicable. [21] Fair value was based on an internal yield analysis or on estimates of value submitted by a third party valuation firm. [22] Fair value was based on an internal yield analysis or on estimates of value submitted by a third party valuation firm. [23] Investment was exited subsequent to September 30, 2024. Refer to Note 14 – Subsequent Events for additional information. [24] Security is non-income producing. [25] Fair value was based on the total enterprise value of the portfolio company, which was then allocated to the portfolio company’s securities in order of their relative priority in the capital structure. [26] Security is non-income producing. [27] Fair value was based on the total enterprise value of the portfolio company, which was then allocated to the portfolio company’s securities in order of their relative priority in the capital structure. [28] One of our affiliated funds, Gladstone Investment Corporation, co-invested with us in this portfolio company pursuant to an exemptive order granted by the U.S. Securities and Exchange Commission. [29] One of our affiliated funds, Gladstone Investment Corporation, co-invested with us in this portfolio company pursuant to an exemptive order granted by the U.S. Securities and Exchange Commission. [30] Debt security is on non-accrual status. [31] The cash interest rate on this investment was indexed to 90-day SOFR, which was 5.40% as of September 30, 2023. [32] Debt security has a fixed interest rate. [33] Debt security has a fixed interest rate. [34] Debt security is on non-accrual status. [35] Our investment in Funko was valued using Level 2 inputs within ASC 820 of the fair value hierarchy. Our common units in Funko are convertible to class A common stock in Funko, Inc. upon meeting certain requirements. Fair value was based on the closing market price of shares of Funko, Inc. as of the reporting date, less a discount for lack of marketability. Funko, Inc. is traded on the Nasdaq Global Select Market under the trading symbol “FNKO.” Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information. [36] The cash interest rate on this investment was indexed to 90-day SOFR, which was 4.59% as of September 30, 2024. [37] Fair value was based on net asset value provided by the fund as a practical expedient. [38] There are certain limitations on our ability to withdraw our partnership interest prior to dissolution of the entity, which must occur no later than May 9, 2024 or two years after all outstanding leverage has matured. [39] Fair value was based on net asset value provided by the fund as a practical expedient. [40] There are certain limitations on our ability to withdraw our partnership interest prior to dissolution of the entity, which must occur no later than May 9, 2024 or two years after all outstanding leverage has matured. [41] The Company has entered into an agreement that entitles it to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder.