INVESTMENTS - Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details)

v3.22.4

INVESTMENTS - Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - USD ($) $ in Thousands		1 Months Ended			3 Months Ended			9 Months Ended
		Dec. 31, 2022		Jun. 30, 2022	Dec. 31, 2022		Dec. 31, 2021	Dec. 31, 2022		Dec. 31, 2021	Sep. 30, 2022	Mar. 31, 2022		Sep. 30, 2021	Mar. 31, 2021	Aug. 31, 2012
New investments, repayments and settlements:
Cost		$ 722,380			$ 722,380			$ 722,380				$ 669,248	[1]
Fair Value		760,463			760,463			760,463				714,396	[1]
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Common Stock Warrants
New investments, repayments and settlements:
Cost	[2],[3],[4]											0
Fair Value	[2],[3],[4]											921
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Line of Credit
New investments, repayments and settlements:
Cost		2,800	[5],[6]		2,800	[5],[6]		2,800	[5],[6]			2,800	[3],[4],[7]
Fair Value		2,800	[5],[6]		2,800	[5],[6]		2,800	[5],[6]			2,800	[3],[4],[7]
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost	[2],[3],[4]											4,722
Fair Value	[2],[3],[4]											14,746
Investment, Identifier [Axis]: B+T Group Acquisition, Inc. – Term Debt
New investments, repayments and settlements:
Cost	[3],[4],[7]											14,000
Fair Value	[3],[4],[7]											14,000
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.(L) – Common Stock Warrants
New investments, repayments and settlements:
Cost	[5],[6],[8],[9]	0			0			0
Fair Value	[5],[6],[8],[9]	0			0			0
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.(L) – Term Debt 2
New investments, repayments and settlements:
Cost	[5],[6]	14,000			14,000			14,000
Fair Value	[5],[6]	14,000			14,000			14,000
Investment, Identifier [Axis]: B+T Group Acquisition, Inc.– Preferred Stock
New investments, repayments and settlements:
Cost	[5],[6],[9]	4,722			4,722			4,722
Fair Value	[5],[6],[9]	2,653			2,653			2,653
Investment, Identifier [Axis]: Bassett Creek Services, Inc.
New investments, repayments and settlements:
Realized gain on preferred equity				$ 4,700
Investment, Identifier [Axis]: Bassett Creek Services, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost	[2],[3]											4,900
Fair Value	[2],[3]											17,150
Investment, Identifier [Axis]: Bassett Creek Services, Inc. – Term Debt
New investments, repayments and settlements:
Cost	[3]											48,000
Fair Value	[3]											48,000
Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost		6,653	[5],[9]		6,653	[5],[9]		6,653	[5],[9]			6,653	[2],[3]
Fair Value		35,255	[5],[9]		35,255	[5],[9]		35,255	[5],[9]			21,485	[2],[3]
Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Term Debt 1
New investments, repayments and settlements:
Cost		17,700	[5]		17,700	[5]		17,700	[5]			17,700	[3]
Fair Value		17,700	[5]		17,700	[5]		17,700	[5]			17,700	[3]
Investment, Identifier [Axis]: Brunswick Bowling Products, Inc. – Term Debt 2
New investments, repayments and settlements:
Cost		6,850	[5]		6,850	[5]		6,850	[5]			6,850	[3]
Fair Value		6,850	[5]		6,850	[5]		6,850	[5]			6,850	[3]
Investment, Identifier [Axis]: Counsel Press, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost		6,995	[5],[9]		6,995	[5],[9]		6,995	[5],[9]			6,995	[2],[3]
Fair Value		27,539	[5],[9]		27,539	[5],[9]		27,539	[5],[9]			25,374	[2],[3]
Investment, Identifier [Axis]: Counsel Press, Inc. – Term Debt 1
New investments, repayments and settlements:
Cost		21,100	[5]		21,100	[5]		21,100	[5]			21,100	[3]
Fair Value		21,100	[5]		21,100	[5]		21,100	[5]			21,100	[3]
Investment, Identifier [Axis]: Counsel Press, Inc. – Term Debt 2
New investments, repayments and settlements:
Cost		6,400	[5]		6,400	[5]		6,400	[5]			6,400	[3]
Fair Value		6,400	[5]		6,400	[5]		6,400	[5]			6,400	[3]
Investment, Identifier [Axis]: Country Club Enterprises, LLC - Guaranty
New investments, repayments and settlements:
Cost	[10]											0
Fair Value	[10]											0
Investment, Identifier [Axis]: Country Club Enterprises, LLC – Term Debt
New investments, repayments and settlements:
Cost	[11]											1,500
Fair Value	[11]											1,498
Investment, Identifier [Axis]: Dema/Mai Holdings, Inc - Preferred Equity
New investments, repayments and settlements:
Cost	[5],[9]	21,000			21,000			21,000
Fair Value	[5],[9]	24,877			24,877			24,877
Investment, Identifier [Axis]: Dema/Mai Holdings, Inc – Term Debt
New investments, repayments and settlements:
Cost	[5]	38,250			38,250			38,250
Fair Value	[5]	38,250			38,250			38,250
Investment, Identifier [Axis]: Diligent Delivery Systems – Common Stock Warrants
New investments, repayments and settlements:
Cost		500	[5],[9]		500	[5],[9]		500	[5],[9]			500	[2],[3]
Fair Value		2,249	[5],[9]		2,249	[5],[9]		2,249	[5],[9]			1,533	[2],[3]
Investment, Identifier [Axis]: Diligent Delivery Systems – Term Debt
New investments, repayments and settlements:
Cost		13,000	[12]		13,000	[12]		13,000	[12]			12,987	[11]
Fair Value		13,016	[12]		13,016	[12]		13,016	[12]			13,000	[11]
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost		8,199	[5],[6],[9]		8,199	[5],[6],[9]		8,199	[5],[6],[9]			8,199	[2],[3],[4],[7]
Fair Value		0	[5],[6],[9]		0	[5],[6],[9]		0	[5],[6],[9]			0	[2],[3],[4],[7]
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc. – Term Debt
New investments, repayments and settlements:
Cost	[4],[11]											9,210
Fair Value	[4],[11]											9,072
Investment, Identifier [Axis]: Edge Adhesives Holdings, Inc.– Term Debt
New investments, repayments and settlements:
Cost	[5],[6],[13]	9,210			9,210			9,210
Fair Value	[5],[6],[13]	3,677			3,677			3,677
Investment, Identifier [Axis]: Educators Resource, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost		8,560	[5],[9]		8,560	[5],[9]		8,560	[5],[9]			8,560	[2],[3]
Fair Value		17,638	[5],[9]		17,638	[5],[9]		17,638	[5],[9]			19,252	[2],[3]
Investment, Identifier [Axis]: Educators Resource, Inc. – Term Debt
New investments, repayments and settlements:
Cost		20,000	[5]		20,000	[5]		20,000	[5]			20,000	[3]
Fair Value		20,000	[5]		20,000	[5]		20,000	[5]			20,000	[3]
Investment, Identifier [Axis]: Funko Acquisition Holdings, LLC – Common Units
New investments, repayments and settlements:
Cost		21	[6],[9],[14]		21	[6],[9],[14]		21	[6],[9],[14]			30	[2],[4],[15],[16]
Fair Value		31	[6],[9],[14]		31	[6],[9],[14]		31	[6],[9],[14]			74	[2],[4],[15],[16]
Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Common Stock
New investments, repayments and settlements:
Cost		11,513	[5],[9]		11,513	[5],[9]		11,513	[5],[9]			11,513	[2],[3]
Fair Value		0	[5],[9]		0	[5],[9]		0	[5],[9]			0	[2],[3]
Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Term Debt 1
New investments, repayments and settlements:
Cost		6,900	[5]		6,900	[5]		6,900	[5]			6,500	[3]
Fair Value		5,610	[5]		5,610	[5]		5,610	[5]			6,500	[3]
Investment, Identifier [Axis]: Galaxy Technologies Holdings, Inc. – Term Debt 2
New investments, repayments and settlements:
Cost		18,796	[5]		18,796	[5]		18,796	[5]			18,796	[3]
Fair Value		15,281	[5]		15,281	[5]		15,281	[5]			18,796	[3]
Investment, Identifier [Axis]: Ginsey Home Solutions, Inc.
New investments, repayments and settlements:
Cost																$ 5,000
Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Common Stock
New investments, repayments and settlements:
Cost		8	[5],[9]		8	[5],[9]		8	[5],[9]			8	[2],[3]
Fair Value		0	[5],[9]		0	[5],[9]		0	[5],[9]			0	[2],[3]
Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost		9,583	[5],[9]		9,583	[5],[9]		9,583	[5],[9]			9,583	[2],[3]
Fair Value		0	[5],[9]		0	[5],[9]		0	[5],[9]			3,263	[2],[3]
Investment, Identifier [Axis]: Ginsey Home Solutions, Inc. – Term Debt
New investments, repayments and settlements:
Cost	[5]	12,200			12,200			12,200
Fair Value		12,200	[5]		12,200	[5]		12,200	[5]			13,300	[4],[17]
Investment, Identifier [Axis]: Gladstone SOG Investments, Inc. - Common Stock(
New investments, repayments and settlements:
Cost	[5],[9]	620			620			620
Fair Value	[5],[9]	713			713			713
Investment, Identifier [Axis]: Horizon Facilities Services, Inc.
New investments, repayments and settlements:
Realized gain on preferred equity								12,300
Investment, Identifier [Axis]: Horizon Facilities Services, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost		0	[5],[9]		0	[5],[9]		0	[5],[9]			10,080	[2],[3]
Fair Value		13,188	[5],[9]		13,188	[5],[9]		13,188	[5],[9]			17,807	[2],[3]
Investment, Identifier [Axis]: Horizon Facilities Services, Inc. – Term Debt
New investments, repayments and settlements:
Cost		57,700	[5]		57,700	[5]		57,700	[5]			27,700	[3]
Fair Value		57,700	[5]		57,700	[5]		57,700	[5]			27,700	[3]
Investment, Identifier [Axis]: ImageWorks Display and Marketing Group, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost		6,749	[5],[9]		6,749	[5],[9]		6,749	[5],[9]			6,749	[2],[3],[7]
Fair Value		13,131	[5],[9]		13,131	[5],[9]		13,131	[5],[9]			16,405	[2],[3],[7]
Investment, Identifier [Axis]: ImageWorks Display and Marketing Group, Inc. – Term Debt
New investments, repayments and settlements:
Cost		22,000	[5]		22,000	[5]		22,000	[5]			22,000	[3],[7]
Fair Value		22,000	[5]		22,000	[5]		22,000	[5]			22,000	[3],[7]
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Guaranty
New investments, repayments and settlements:
Cost	[7],[10]											0
Fair Value	[7],[10]											0
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 1
New investments, repayments and settlements:
Cost		16,500	[5],[13]		16,500	[5],[13]		16,500	[5],[13]			16,500	[3],[7],[18]
Fair Value		10,556	[5],[13]		10,556	[5],[13]		10,556	[5],[13]			15,023	[3],[7],[18]
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 2
New investments, repayments and settlements:
Cost	[3],[7],[18]											26,000
Fair Value	[3],[7],[18]											23,672
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC - Term Debt 3
New investments, repayments and settlements:
Cost	[3],[7],[18]											2,438
Fair Value	[3],[7],[18]											2,219
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Line of Credit
New investments, repayments and settlements:
Cost	[5],[13]	5,000			5,000			5,000
Fair Value	[5],[13]	3,199			3,199			3,199
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Term Debt 2
New investments, repayments and settlements:
Cost	[5],[13]	26,000			26,000			26,000
Fair Value	[5],[13]	16,634			16,634			16,634
Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC – Term Debt 3
New investments, repayments and settlements:
Cost	[5],[13]	2,438			2,438			2,438
Fair Value	[5],[13]	1,560			1,560			1,560
Investment, Identifier [Axis]: J.R. Hobbs Co. – Atlanta, LLC – Preferred Stock
New investments, repayments and settlements:
Cost		10,920	[5],[9]		10,920	[5],[9]		10,920	[5],[9]			10,920	[2],[3],[7]
Fair Value		0	[5],[9]		0	[5],[9]		0	[5],[9]			0	[2],[3],[7]
Investment, Identifier [Axis]: Mason West, LLC – Preferred Stock
New investments, repayments and settlements:
Cost		11,206	[5],[9]		11,206	[5],[9]		11,206	[5],[9]			11,206	[2],[3]
Fair Value		10,896	[5],[9]		10,896	[5],[9]		10,896	[5],[9]			7,553	[2],[3]
Investment, Identifier [Axis]: Mason West, LLC – Term Debt
New investments, repayments and settlements:
Cost		25,250	[5]		25,250	[5]		25,250	[5]			25,250	[3]
Fair Value		25,250	[5]		25,250	[5]		25,250	[5]			25,250	[3]
Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Line of Credit
New investments, repayments and settlements:
Cost		2,000	[5]		2,000	[5]		2,000	[5]			0	[3]
Fair Value		2,000	[5]		2,000	[5]		2,000	[5]			0	[3]
Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost		6,600	[5],[9]		6,600	[5],[9]		6,600	[5],[9]			6,600	[2],[3]
Fair Value		14,858	[5],[9]		14,858	[5],[9]		14,858	[5],[9]			10,223	[2],[3]
Investment, Identifier [Axis]: Nocturne Villa Rentals, Inc. – Term Debt
New investments, repayments and settlements:
Cost		42,450	[5]		42,450	[5]		42,450	[5]			27,700	[3]
Fair Value		42,450	[5]		42,450	[5]		42,450	[5]			27,700	[3]
Investment, Identifier [Axis]: Nth Degree Investment Group, LLC – Common Stock
New investments, repayments and settlements:
Cost		1,219	[5],[9]		1,219	[5],[9]		1,219	[5],[9]			1,219	[2],[3]
Fair Value		12,036	[5],[9]		12,036	[5],[9]		12,036	[5],[9]			511	[2],[3]
Investment, Identifier [Axis]: Old World Christmas, Inc.
New investments, repayments and settlements:
Realized gain on preferred equity		13,400			13,400			13,400
Investment, Identifier [Axis]: Old World Christmas, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost		0	[5],[9]		0	[5],[9]		0	[5],[9]			0	[2],[3],[7]
Fair Value		35,028	[5],[9]		35,028	[5],[9]		35,028	[5],[9]			37,842	[2],[3],[7]
Investment, Identifier [Axis]: Old World Christmas, Inc. – Secured First Lien Term Loan
New investments, repayments and settlements:
Cost		40,500	[5]		40,500	[5]		40,500	[5]			25,000	[3],[7]
Fair Value		40,500	[5]		40,500	[5]		40,500	[5]			25,000	[3],[7]
Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost	[2],[3],[7]											19,730
Fair Value	[2],[3],[7]											0
Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Preferred Stock(
New investments, repayments and settlements:
Cost	[5],[9]	19,730			19,730			19,730
Fair Value	[5],[9]	0			0			0
Investment, Identifier [Axis]: PSI Molded Plastics, Inc. – Term Debt
New investments, repayments and settlements:
Cost		26,618	[5]		26,618	[5]		26,618	[5]			26,618	[3]
Fair Value		26,618	[5]		26,618	[5]		26,618	[5]			26,618	[3]
Investment, Identifier [Axis]: Phoenix Door Systems, Inc – Line of Credit
New investments, repayments and settlements:
Cost	[12]	2,550			2,550			2,550
Fair Value	[12]	2,423			2,423			2,423
Investment, Identifier [Axis]: Phoenix Door Systems, Inc – Line of Credit,
New investments, repayments and settlements:
Cost	[11]											2,000
Fair Value	[11]											1,920
Investment, Identifier [Axis]: Phoenix Door Systems, Inc. – Common Stock
New investments, repayments and settlements:
Cost		1,830	[5],[9]		1,830	[5],[9]		1,830	[5],[9]			1,452	[2],[3]
Fair Value		0	[5],[9]		0	[5],[9]		0	[5],[9]			0	[2],[3]
Investment, Identifier [Axis]: Phoenix Door Systems, Inc. – Term Debt
New investments, repayments and settlements:
Cost		3,200	[12]		3,200	[12]		3,200	[12]			3,200	[11]
Fair Value		3,040	[12]		3,040	[12]		3,040	[12]			3,072	[11]
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Common Stock
New investments, repayments and settlements:
Cost		222	[5],[9]		222	[5],[9]		222	[5],[9]			222	[2],[3],[16]
Fair Value		0	[5],[9]		0	[5],[9]		0	[5],[9]			0	[2],[3],[16]
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost		4,643	[5],[9]		4,643	[5],[9]		4,643	[5],[9]			4,643	[2],[3]
Fair Value		2,465	[5],[9]		2,465	[5],[9]		2,465	[5],[9]			0	[2],[3]
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Term Debt 1
New investments, repayments and settlements:
Cost		3,128	[5]		3,128	[5]		3,128	[5]			3,128	[11],[18]
Fair Value		3,128	[5]		3,128	[5]		3,128	[5]			2,909	[11],[18]
Investment, Identifier [Axis]: SFEG Holdings, Inc. – Term Debt 2
New investments, repayments and settlements:
Cost		12,516	[5]		12,516	[5]		12,516	[5]			11,736	[11],[18]
Fair Value		12,516	[5]		12,516	[5]		12,516	[5]			10,914	[11],[18]
Investment, Identifier [Axis]: Schylling, Inc. – Preferred Stock
New investments, repayments and settlements:
Cost		4,000	[5],[9]		4,000	[5],[9]		4,000	[5],[9]			4,000	[2],[3]
Fair Value		19,452	[5],[9]		19,452	[5],[9]		19,452	[5],[9]			17,820	[2],[3]
Investment, Identifier [Axis]: Schylling, Inc. – Term Debt
New investments, repayments and settlements:
Cost		27,981	[5]		27,981	[5]		27,981	[5]			27,981	[3]
Fair Value		27,981	[5]		27,981	[5]		27,981	[5]			27,981	[3]
Investment, Identifier [Axis]: The Maids International, LLC – Preferred Stock
New investments, repayments and settlements:
Cost		6,640	[5],[9]		6,640	[5],[9]		6,640	[5],[9]			6,640	[2],[3],[7]
Fair Value		0	[5],[9]		0	[5],[9]		0	[5],[9]			2,679	[2],[3],[7]
Investment, Identifier [Axis]: The Maids International, LLC – Term Debt
New investments, repayments and settlements:
Cost	[3],[7]											28,560
Fair Value	[3],[7]											28,560
Investment, Identifier [Axis]: The Maids International, LLC – Term Debt
New investments, repayments and settlements:
Cost	[5]	28,560			28,560			28,560
Fair Value	[5]	28,560			28,560			28,560
Investment, Identifier [Axis]: The Mountain Corporation 1
New investments, repayments and settlements:
Cost	[3],[7],[18]											3,400
Fair Value	[3],[7],[18]											3,400
Investment, Identifier [Axis]: The Mountain Corporation 2
New investments, repayments and settlements:
Cost	[3],[7],[18]											800
Fair Value	[3],[7],[18]											800
Investment, Identifier [Axis]: The Mountain Corporation – Common Stock
New investments, repayments and settlements:
Cost		1	[5],[9]		1	[5],[9]		1	[5],[9]			1	[2],[3]
Fair Value		0	[5],[9]		0	[5],[9]		0	[5],[9]			0	[2],[3]
Investment, Identifier [Axis]: The Mountain Corporation – Delayed Draw Term Debt
New investments, repayments and settlements:
Cost	[3],[7],[18]											1,500
Fair Value	[3],[7],[18]											118
Investment, Identifier [Axis]: The Mountain Corporation – Line of Credit 1
New investments, repayments and settlements:
Cost	[5],[13]	3,400			3,400			3,400
Fair Value	[5],[13]	2,411			2,411			2,411
Investment, Identifier [Axis]: The Mountain Corporation – Line of Credit 2
New investments, repayments and settlements:
Cost	[5],[13]	900			900			900
Fair Value	[5],[13]	0			0			0
Investment, Identifier [Axis]: The Mountain Corporation – Preferred Stock
New investments, repayments and settlements:
Cost	[2],[3]											6,899
Fair Value	[2],[3]											0
Investment, Identifier [Axis]: The Mountain Corporation – Preferred Stock(
New investments, repayments and settlements:
Cost	[5],[9]	6,899			6,899			6,899
Fair Value	[5],[9]	0			0			0
Investment, Identifier [Axis]: The Mountain Corporation – Term Debt
New investments, repayments and settlements:
Cost	[3],[7],[18]											11,700
Fair Value	[3],[7],[18]											923
Investment, Identifier [Axis]: The Mountain Corporation – Term Debt
New investments, repayments and settlements:
Cost	[5],[13]	3,200			3,200			3,200
Fair Value	[5],[13]	0			0			0
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd. - Preferred Stock
New investments, repayments and settlements:
Cost		6,000	[5],[9]		6,000	[5],[9]		6,000	[5],[9]			6,000	[2],[3],[7]
Fair Value		4,794	[5],[9]		4,794	[5],[9]		4,794	[5],[9]			6,000	[2],[3],[7]
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 2
New investments, repayments and settlements:
Cost	[3],[7]											18,250
Fair Value	[3],[7]											18,250
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 1
New investments, repayments and settlements:
Cost	[3],[7]											0
Fair Value	[3],[7]											0
Investment, Identifier [Axis]: Utah Pacific Bridge & Steel, Ltd., 2
New investments, repayments and settlements:
Cost	[5]	18,250			18,250			18,250
Fair Value	[5]	18,250			18,250			18,250
Total
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		760,432			760,432		$ 700,658	760,432		$ 700,658	$ 737,877	714,322		$ 736,425	$ 633,734
New investments, repayments and settlements:
Issuances / originations					31,463		37,005	133,518		84,565
Settlements / repayments					(2,300)		(32,838)	(55,396)		(46,898)
Sales					(13,372)		(41,768)	(35,298)		(49,394)
Transfers					0		0	0		0
Ending balance		760,432			760,432		700,658	760,432		700,658
Total | Debt and Equity Securities, Realized Gain (Loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gain (loss)					3,372		21,939	10,318		23,725
Total | Debt and Equity Securities, Unrealized Gain (Loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gain (loss)					(6,609)		5,320	(4,783)		80,919
Reversal of previously recorded (appreciation) depreciation upon realization					10,001		(25,425)	(2,249)		(25,993)
Secured First Lien Debt
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		447,491			447,491		433,834	447,491		433,834	420,907	425,087		431,413	368,688
New investments, repayments and settlements:
Issuances / originations					29,900		37,000	106,950		65,450
Settlements / repayments					(800)		(32,838)	(48,800)		(46,898)
Sales					0		0	0		0
Transfers					0		0	(14,418)		45,043
Ending balance		447,491			447,491		433,834	447,491		433,834
Secured First Lien Debt | Debt and Equity Securities, Realized Gain (Loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gain (loss)					0		0	0		0
Secured First Lien Debt | Debt and Equity Securities, Unrealized Gain (Loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gain (loss)					(2,516)		(1,741)	(21,328)		1,491
Reversal of previously recorded (appreciation) depreciation upon realization					0		0	0		60
Secured First Lien Debt | Investment, Identifier [Axis]: PSI Molded Plastics, Inc.
New investments, repayments and settlements:
Cost		26,600			26,600			26,600
Fair Value		26,600			26,600			26,600
Secured Second Lien Debt
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		76,169			76,169		68,294	76,169		68,294	76,751	67,958		68,489	102,897
New investments, repayments and settlements:
Issuances / originations					1,183		5	5,188		6,515
Settlements / repayments					(1,500)		0	(6,596)		0
Sales					0		0	0		0
Transfers					0		0	14,418		(45,043)
Ending balance		76,169			76,169		68,294	76,169		68,294
Secured Second Lien Debt | Debt and Equity Securities, Realized Gain (Loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gain (loss)					(10,000)		0	(10,000)		0
Secured Second Lien Debt | Debt and Equity Securities, Unrealized Gain (Loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gain (loss)					(266)		(200)	(4,800)		3,925
Reversal of previously recorded (appreciation) depreciation upon realization					10,001		0	10,001		0
Secured Second Lien Debt | Investment, Identifier [Axis]: D.P.M.S., Inc.
New investments, repayments and settlements:
Cost							12,300			12,300
Fair Value							7,300			7,300
Secured Second Lien Debt | Investment, Identifier [Axis]: Ginsey Home Solutions, Inc.
New investments, repayments and settlements:
Cost		12,200			12,200			12,200
Fair Value		12,200			12,200			12,200
Secured Second Lien Debt | Investment, Identifier [Axis]: J.R. Hobbs Co. - Atlanta, LLC
New investments, repayments and settlements:
Cost							52,500			52,500
Fair Value							52,400			52,400
Preferred Equity
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		221,774			221,774		196,104	221,774		196,104	229,430	217,599		228,931	159,478
New investments, repayments and settlements:
Issuances / originations					0		0	21,000		12,600
Settlements / repayments					0		0	0		0
Sales					(13,372)		(41,768)	(35,298)		(49,394)
Transfers					0		0	0		(16,034)
Ending balance		221,774			221,774		196,104	221,774		196,104
Preferred Equity | Debt and Equity Securities, Realized Gain (Loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gain (loss)					13,372		21,939	20,318		23,725
Preferred Equity | Debt and Equity Securities, Unrealized Gain (Loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gain (loss)					(7,656)		12,427	10,405		91,782
Reversal of previously recorded (appreciation) depreciation upon realization					0		(25,425)	(12,250)		(26,053)
Preferred Equity | Investment, Identifier [Axis]: Galaxy Technologies, Inc.
New investments, repayments and settlements:
Cost							11,500			11,500
Fair Value							16,000			16,000
Preferred Equity | Investment, Identifier [Axis]: SOG Specialty Knives & Tools, LLC
New investments, repayments and settlements:
Cost							600			600
Fair Value							0			0
Common Equity/ Equivalents
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		14,998			14,998		2,426	14,998		2,426	$ 10,789	$ 3,678		$ 7,592	$ 2,671
New investments, repayments and settlements:
Issuances / originations					380		0	380		0
Settlements / repayments					0		0	0		0
Sales					0		0	0		0
Transfers					0		0	0		16,034
Ending balance		$ 14,998			14,998		2,426	14,998		2,426
Common Equity/ Equivalents | Debt and Equity Securities, Realized Gain (Loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gain (loss)					0		0	0		0
Common Equity/ Equivalents | Debt and Equity Securities, Unrealized Gain (Loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gain (loss)					3,829		(5,166)	10,940		(16,279)
Reversal of previously recorded (appreciation) depreciation upon realization					$ 0		$ 0	$ 0		$ 0
[1] Cumulative gross unrealized appreciation for federal income tax purposes is $140.8 million; cumulative gross unrealized depreciation for federal income tax purposes is $97.1 million. Cumulative net unrealized appreciation is $43.8 million, based on a tax cost of $670.6 million. [2] . [3] Fair value was based on the total enterprise value of the portfolio company, which is generally allocated to the portfolio company’s securities in order of their relative priority in the capital structure. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information. [4] One of our affiliated funds, Gladstone Capital Corporation, co-invested with us in this portfolio company pursuant to an exemptive order granted by the U.S. Securities and Exchange Commission. [5] Fair value was based on the total enterprise value of the portfolio company, which is generally allocated to the portfolio company’s securities in order of their relative priority in the capital structure. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information. [6] One of our affiliated funds, Gladstone Capital Corporation, co-invested with us in this portfolio company pursuant to an exemptive order granted by the U.S. Securities and Exchange Commission. [7] Affiliate investments, as defined by the 1940 Act, are those that are not Control investments and 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. [8] Affiliate investments, as defined by the 1940 Act, are those that are not Control investments and 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. [9] non-income producing. [10] Refer to Note 10—Commitments and Contingencies in the accompanying Notes to Consolidated Financial Statements for additional information regarding this guaranty. [11] Fair value was based on internal yield analysis or on estimates of value submitted by ICE Data Pricing and Reference Data, LLC. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information. [12] Fair value was based on internal yield analysis or on estimates of value submitted by ICE Data Pricing and Reference Data, LLC. Refer to Note 3—Investments in the accompanying Notes to Consolidated Financial Statements for additional information. [13] Debt security is on non-accrual status. [14] Our investment in Funko was valued using Level 2 inputs within the ASC 820 fair value hierarchy. Our common units in Funko are convertible into 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. [15] Our investment in Funko was valued using Level 2 inputs within the ASC 820 fair value hierarchy. Our common units in Funko are convertible into 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. [16] Non-Control/Non-Affiliate investments, as defined by the 1940 Act, are those that are neither Control nor Affiliate investments and in which we own less than 5.0% of the issued and outstanding voting securities. [17] $5.1 million of the debt security was participated to a third-party, but is accounted for as collateral for a secured borrowing under accounting principles generally accepted in the U.S. and presented as Secured borrowing on our accompanying Consolidated Statements of Assets and Liabilities as of March 31, 2022. [18] Debt security is on non-accrual status.