Schedule 12-14s - Summary of schedule of investment (Details)

v3.22.2.2

Schedule 12-14s - Summary of schedule of investment (Details) - USD ($)		3 Months Ended				9 Months Ended				12 Months Ended
		Sep. 30, 2022		Sep. 30, 2021		Sep. 30, 2022		Sep. 30, 2021		Dec. 31, 2021		Dec. 31, 2020
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating		$ 84,229,000		$ 70,193,000		$ 221,501,000		$ 208,511,000
Realized Gain (Loss)		5,289,000		21,111,000		775,000		14,599,000
Investment cost		2,869,469,000				2,869,469,000				$ 2,390,984,000
Investment Owned At Fair Value		2,825,738,000				2,825,738,000				2,434,522,000
Net Change in Unrealized Appreciation (Depreciation)		(2,089,000)		(35,651,000)		(87,147,000)		46,231,000
Common Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Investment Owned At Fair Value		93,096,000				93,096,000				115,271,000
Unsecured Debt [Member]
Investments in and Advances to Affiliates [Line Items]
Investment Owned At Fair Value		54,393,000				54,393,000				52,890,000
Senior Secured Debt [Member]
Investments in and Advances to Affiliates [Line Items]
Investment Owned At Fair Value		2,607,006,000				2,607,006,000				2,156,709,000
Preferred Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Investment Owned At Fair Value		41,038,000				41,038,000				69,439,000
Sustainable And Renewable Technology [Member]
Investments in and Advances to Affiliates [Line Items]
Investment Owned At Fair Value		15,683,000				15,683,000				39,387,000
Medical Devices And Equipment [Member]
Investments in and Advances to Affiliates [Line Items]
Investment Owned At Fair Value		17,421,000				17,421,000				12,612,000
Diversified Financial Services [Member]
Investments in and Advances to Affiliates [Line Items]
Investment Owned At Fair Value		72,061,000				72,061,000				65,073,000
Internet Consumer And Business Services [Member]
Investments in and Advances to Affiliates [Line Items]
Investment Owned At Fair Value		489,968,000				489,968,000				395,506,000
Investment, Affiliated Issuer [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						4,694,000	[1]	2,946,000	[2]
Realized Gain (Loss)						1,758,000		(62,143,000)
Investment cost		87,249,000				87,249,000				97,586,000
Investment Owned At Fair Value		80,325,000	[3]	75,547,000		80,325,000	[3]	75,547,000		82,962,000	[4]	$ 65,740,000
Gross Additions						3,210,000	[5]	19,090,000	[6]
Gross reductions						(13,547,000)	[7]	66,176,000	[8]
Net Change in Unrealized Appreciation (Depreciation)						7,700,000		56,893,000
Investment, Affiliated Issuer, Controlled [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						3,490,000	[1]	2,943,000	[2]
Realized Gain (Loss)						0		0
Investment cost		87,249,000				87,249,000				84,039,000
Investment Owned At Fair Value		80,325,000	[3]	65,835,000		80,325,000	[3]	65,835,000		$ 73,504,000	[4]	57,400,000
Gross Additions						3,210,000	[5]	15,762,000	[6]
Gross reductions						0	[7]	0	[8]
Net Change in Unrealized Appreciation (Depreciation)		(2,571,000)		(3,774,000)		3,611,000		(7,327,000)
Investment, Affiliated Issuer, Controlled [Member] | Hercules Adviser L L C [Member]
Investments in and Advances to Affiliates [Line Items]
Realized Gain (Loss)	[9]	0		0		0		0
Investment Owned At Fair Value	[9]	33,945,000		16,804,000		33,945,000		16,804,000
Net Change in Unrealized Appreciation (Depreciation)	[9]	(1,236,000)		(219,000)		9,955,000		10,669,000
Investment, Affiliated Issuer, Controlled [Member] | Coronado Aesthetics L L C [Member]
Investments in and Advances to Affiliates [Line Items]
Realized Gain (Loss)	[9]	0				0
Investment Owned At Fair Value	[9]	400,000				400,000
Net Change in Unrealized Appreciation (Depreciation)	[9]	(22,000)				(165,000)
Investment, Affiliated Issuer, Controlled [Member] | Tectura Corporation [Member]
Investments in and Advances to Affiliates [Line Items]
Realized Gain (Loss)	[9]	0		0		0		0
Investment Owned At Fair Value	[9]	8,318,000		8,294,000		8,318,000		8,294,000
Net Change in Unrealized Appreciation (Depreciation)	[9]	110,000		(80,000)		49,000		(306,000)
Investment, Affiliated Issuer, Controlled [Member] | Gibraltar Business Capital L L C [Member]
Investments in and Advances to Affiliates [Line Items]
Realized Gain (Loss)	[9]	0		0		0		0
Investment Owned At Fair Value	[9]	37,662,000		40,737,000		37,662,000		40,737,000
Net Change in Unrealized Appreciation (Depreciation)	[9]	(1,423,000)		(3,475,000)		(6,228,000)		(17,690,000)
Investment, Affiliated Issuer, Controlled [Member] | Sustainable And Renewable Technology [Member] | Pineapple Energy L L C [Member] | Common Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Shares										3,000,000
Investment, Affiliated Issuer, Controlled [Member] | Sustainable And Renewable Technology [Member] | Pineapple Energy L L C [Member] | Senior Secured Tranche A [Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Interest Rate, Paid in Kind										10.00%
Maturity Date										2023-12
Investment, Affiliated Issuer, Controlled [Member] | Sustainable And Renewable Technology [Member] | Pineapple Energy L L C [Member] | Senior Secured Tranche B [Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Interest Rate, Paid in Cash										10.00%
Principal Amount										$ 280,000
Maturity Date										2022-01
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						2,974,000	[1]	2,422,000	[2]
Realized Gain (Loss)						0		0
Investment cost		64,836,000				64,836,000				$ 61,626,000
Investment Owned At Fair Value		72,007,000	[3]	57,541,000		72,007,000	[3]	57,541,000		65,235,000	[4]	48,800,000
Gross Additions						3,210,000	[5]	15,762,000	[6]
Gross reductions						0	[7]	0	[8]
Net Change in Unrealized Appreciation (Depreciation)						3,562,000		(7,021,000)
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Hercules Adviser L L C [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost		12,035,000				12,035,000				8,885,000
Investment Owned At Fair Value		$ 33,945,000	[3]			$ 33,945,000	[3]			20,840,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Hercules Adviser L L C [Member] | Unsecured Debt [Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Interest Rate, Paid in Cash		5.00%				5.00%
Gross Investment Income, Operating						$ 393,000	[1],[10]	59,000	[2],[11]
Realized Gain (Loss)						0	[10]	0	[11]
Investment cost		$ 12,000,000				12,000,000
Principal Amount		12,000,000				$ 12,000,000
Maturity Date						2025-06
Investment Owned At Fair Value		12,000,000	[3],[10]	6,100,000	[11]	$ 12,000,000	[3],[10]	6,100,000	[11]	8,850,000	[10]	0	[11]
Gross Additions						3,150,000	[5],[10]	6,100,000	[6],[11]
Gross reductions						0	[7],[10]	0	[8],[11]
Net Change in Unrealized Appreciation (Depreciation)						0	[10]	0	[11]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Hercules Adviser L L C [Member] | Member Units [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						0	[1],[10]	0	[2],[11]
Realized Gain (Loss)						0	[10]	0	[11]
Investment cost		$ 35,000				$ 35,000
Shares		1				1
Investment Owned At Fair Value		$ 21,945,000	[3],[10]	10,704,000	[11]	$ 21,945,000	[3],[10]	10,704,000	[11]	11,990,000	[10]	0	[11]
Gross Additions						0	[5],[10]	35,000	[6],[11]
Gross reductions						0	[7],[10]	0	[8],[11]
Net Change in Unrealized Appreciation (Depreciation)						9,955,000	[10]	10,669,000	[11]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Coronado Aesthetics L L C [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost		250,000				250,000				250,000
Investment Owned At Fair Value		400,000	[3]			400,000	[3]			565,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Coronado Aesthetics L L C [Member] | Common Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating	[1],[12]					0
Realized Gain (Loss)	[12]					0
Investment Owned At Fair Value	[12]	9,000				9,000				65,000
Gross Additions	[5],[12]					0
Gross reductions	[7],[12]					0
Net Change in Unrealized Appreciation (Depreciation)	[12]					(56,000)
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Coronado Aesthetics L L C [Member] | Preferred Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating	[1],[12]					0
Realized Gain (Loss)	[12]					0
Investment Owned At Fair Value	[12]	391,000				391,000				500,000
Gross Additions	[5],[12]					0
Gross reductions	[7],[12]					0
Net Change in Unrealized Appreciation (Depreciation)	[12]					(109,000)
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Gibraltar Business Capital L L C [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost		52,551,000				52,551,000				52,491,000
Investment Owned At Fair Value		37,662,000	[3]			37,662,000	[3]			43,830,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Gibraltar Business Capital L L C [Member] | Common Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						0	[1],[13]	0	[2],[14]
Realized Gain (Loss)						0	[13]	0	[14]
Investment Owned At Fair Value		1,134,000	[13]	1,166,000	[14]	1,134,000	[13]	1,166,000	[14]	1,225,000	[13]	2,276,000	[14]
Gross Additions						0	[5],[13]	0	[6],[14]
Gross reductions						0	[7],[13]	0	[8],[14]
Net Change in Unrealized Appreciation (Depreciation)						(91,000)	[13]	(1,110,000)	[14]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Gibraltar Business Capital L L C [Member] | Unsecured Debt [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						2,581,000	[1],[13]	2,363,000	[2],[14]
Realized Gain (Loss)	[14]							0
Investment Owned At Fair Value		22,039,000	[13]	23,403,000	[14]	22,039,000	[13]	23,403,000	[14]	23,212,000	[13]	14,970,000	[14]
Gross Additions						60,000	[5],[13]	9,627,000	[6],[14]
Gross reductions						0	[7],[13]	0	[8],[14]
Net Change in Unrealized Appreciation (Depreciation)						(1,233,000)	[13]	(1,194,000)	[14]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Gibraltar Business Capital L L C [Member] | Preferred Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						0	[1],[13]	0	[2],[14]
Realized Gain (Loss)						0	[13]	0	[14]
Investment Owned At Fair Value		14,489,000	[13]	16,168,000	[14]	14,489,000	[13]	16,168,000	[14]	19,393,000	[13]	31,554,000	[14]
Gross Additions						0	[5],[13]	0	[6],[14]
Gross reductions						0	[7],[13]	0	[8],[14]
Net Change in Unrealized Appreciation (Depreciation)						(4,904,000)	[13]	(15,386,000)	[14]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Medical Devices And Equipment [Member] | Coronado Aesthetics L L C [Member] | Preferred Series A
Investments in and Advances to Affiliates [Line Items]
Investment cost		$ 250,000				$ 250,000				$ 250,000
Shares		5,000,000				5,000,000				5,000,000
Investment Owned At Fair Value		$ 391,000	[3]			$ 391,000	[3]			$ 500,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Medical Devices And Equipment [Member] | Coronado Aesthetics L L C [Member] | Common Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost		$ 0				$ 0				$ 0
Shares		180,000				180,000				180,000
Investment Owned At Fair Value		$ 9,000	[3]			$ 9,000	[3]			$ 65,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Diversified Financial Services [Member] | Hercules Adviser L L C [Member] | Unsecured Debt [Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Interest Rate, Paid in Cash										5.00%
Investment cost										$ 8,850,000
Principal Amount										$ 8,850,000
Maturity Date										2023-05
Investment Owned At Fair Value	[4]									$ 8,850,000
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Diversified Financial Services [Member] | Hercules Adviser L L C [Member] | Member Units [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost										$ 35,000
Shares										1,000
Investment Owned At Fair Value	[4]									$ 11,990,000
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Diversified Financial Services [Member] | Gibraltar Business Capital L L C [Member] | Preferred Series A
Investments in and Advances to Affiliates [Line Items]
Investment cost		$ 26,122,000				$ 26,122,000				$ 26,122,000
Shares		10,602,752				10,602,752				10,602,752
Investment Owned At Fair Value		$ 14,489,000	[3]			$ 14,489,000	[3]			$ 19,393,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Diversified Financial Services [Member] | Gibraltar Business Capital L L C [Member] | Common Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost		$ 1,884,000				$ 1,884,000				$ 1,884,000
Shares		830,000				830,000				830,000
Investment Owned At Fair Value		$ 1,134,000	[3]			$ 1,134,000	[3]			$ 1,225,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Diversified Financial Services [Member] | Gibraltar Business Capital L L C [Member] | Unsecured Debt Eleven Point Five Zero Percentage [Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Interest Rate, Paid in Cash		11.50%				11.50%				11.50%
Investment cost		$ 9,844,000				$ 9,844,000				$ 9,823,000
Principal Amount		10,000,000				$ 10,000,000				$ 10,000,000
Maturity Date						2026-09				2026-09
Investment Owned At Fair Value		$ 9,006,000	[3]			$ 9,006,000	[3]			$ 9,394,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments | Diversified Financial Services [Member] | Gibraltar Business Capital L L C [Member] | Unsecured Debt Fourteen Point Five Zero Percentage [Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Interest Rate, Paid in Cash		14.50%				14.50%				14.50%
Investment cost		$ 14,701,000				$ 14,701,000				$ 14,662,000
Principal Amount		15,000,000				$ 15,000,000				$ 15,000,000
Maturity Date						2026-09				2026-09
Investment Owned At Fair Value		13,033,000	[3]			$ 13,033,000	[3]			$ 13,818,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Other Control Investments
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						516,000	[1]	521,000	[2]
Realized Gain (Loss)						0		0
Investment cost		22,413,000				22,413,000				22,413,000
Investment Owned At Fair Value		8,318,000	[3]	8,294,000		8,318,000	[3]	8,294,000		8,269,000	[4]	8,600,000
Gross Additions						0	[5]	0	[6]
Gross reductions						0	[7]	0	[8]
Net Change in Unrealized Appreciation (Depreciation)						49,000		(306,000)
Investment, Affiliated Issuer, Controlled [Member] | Other Control Investments | Tectura Corporation [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost		22,413,000				22,413,000				22,413,000
Investment Owned At Fair Value		8,318,000	[3]			8,318,000	[3]			8,269,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Other Control Investments | Tectura Corporation [Member] | Common Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						0	[1],[15]	0	[2],[16]
Realized Gain (Loss)						0	[15]	0	[16]
Investment Owned At Fair Value		0	[15]	0	[16]	0	[15]	0	[16]	0	[15]	0	[16]
Gross Additions						0	[5],[15]	0	[6],[16]
Gross reductions						0	[7],[15]	0	[8],[16]
Net Change in Unrealized Appreciation (Depreciation)						0	[15]	0	[16]
Investment, Affiliated Issuer, Controlled [Member] | Other Control Investments | Tectura Corporation [Member] | Preferred Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						0	[1],[15]	0	[2],[16]
Realized Gain (Loss)						0	[15]	0	[16]
Investment Owned At Fair Value		0	[15]	0	[16]	0	[15]	0	[16]	0	[15]	0	[16]
Gross Additions						0	[5],[15]	0	[6],[16]
Gross reductions						0	[7],[15]	0	[8],[16]
Net Change in Unrealized Appreciation (Depreciation)						0	[15]	0	[16]
Investment, Affiliated Issuer, Controlled [Member] | Other Control Investments | Gibraltar Business Capital L L C [Member] | Unsecured Debt [Member]
Investments in and Advances to Affiliates [Line Items]
Realized Gain (Loss)	[13]					0
Investment, Affiliated Issuer, Controlled [Member] | Other Control Investments | Internet Consumer And Business Services [Member] | Tectura Corporation [Member] | Common Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost		$ 900,000				$ 900,000				$ 900,000
Shares		414,994,863				414,994,863				414,994,863
Investment Owned At Fair Value		$ 0	[3]			$ 0	[3]			$ 0	[4]
Investment, Affiliated Issuer, Controlled [Member] | Other Control Investments | Internet Consumer And Business Services [Member] | Tectura Corporation [Member] | Senior Secured Tranche A [Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Interest Rate, Paid in Kind		5.00%				5.00%				5.00%
Investment cost		$ 240,000				$ 240,000				$ 240,000
Principal Amount		10,680,000				$ 10,680,000				$ 10,680,000
Maturity Date						2024-07				2024-07
Investment Owned At Fair Value		$ 0	[3]			$ 0	[3]			$ 0	[4]
Investment, Affiliated Issuer, Controlled [Member] | Other Control Investments | Internet Consumer And Business Services [Member] | Tectura Corporation [Member] | Senior Secured Tranche B [Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Interest Rate, Paid in Cash		8.25%				8.25%				8.25%
Investment cost		$ 8,250,000				$ 8,250,000				$ 8,250,000
Principal Amount		8,250,000				$ 8,250,000				$ 8,250,000
Maturity Date						2024-07				2024-07
Investment Owned At Fair Value		$ 8,250,000	[3]			$ 8,250,000	[3]			$ 8,250,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Other Control Investments | Internet Consumer And Business Services [Member] | Tectura Corporation [Member] | Senior Secured Tranche C [Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Interest Rate, Paid in Kind		5.00%				5.00%				5.00%
Investment cost		$ 13,023,000				$ 13,023,000				$ 13,023,000
Principal Amount		13,023,000				$ 13,023,000				$ 13,023,000
Maturity Date						2024-07				2024-07
Investment Owned At Fair Value		68,000	[3]			$ 68,000	[3]			$ 19,000	[4]
Investment, Affiliated Issuer, Controlled [Member] | Other Control Investments | Internet Consumer And Business Services [Member] | Tectura Corporation [Member] | Preferred Series BB Equity
Investments in and Advances to Affiliates [Line Items]
Investment cost		$ 0				$ 0				$ 0
Shares		1,000,000				1,000,000				1,000,000
Investment Owned At Fair Value		$ 0	[3]			$ 0	[3]			$ 0	[4]
Investment, Affiliated Issuer, Controlled [Member] | Senior Debt [Member] | Other Control Investments | Tectura Corporation [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						516,000	[1],[15]	521,000	[2],[16]
Realized Gain (Loss)						0	[15]	0	[16]
Investment Owned At Fair Value		8,318,000	[15]	8,294,000	[16]	8,318,000	[15]	8,294,000	[16]	8,269,000	[15]	8,600,000	[16]
Gross Additions						0	[5],[15]	0	[6],[16]
Gross reductions						0	[7],[15]	0	[8],[16]
Net Change in Unrealized Appreciation (Depreciation)						49,000	[15]	(306,000)	[16]
Investment, Affiliated Issuer, Noncontrolled [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						1,204,000	[1]	3,000	[2]
Realized Gain (Loss)		(2,014,000)		0		1,758,000		(62,143,000)
Investment cost		0				0				13,547,000
Investment Owned At Fair Value		0		9,712,000		0		9,712,000		9,458,000	[4]	8,340,000
Gross Additions						0	[5]	3,328,000	[6]
Gross reductions						(13,547,000)	[7]	66,176,000	[8]
Net Change in Unrealized Appreciation (Depreciation)		4,631,000		(118,000)		4,089,000		64,220,000
Investment, Affiliated Issuer, Noncontrolled [Member] | Solar Spectrum Holdings L L C [Member]
Investments in and Advances to Affiliates [Line Items]
Realized Gain (Loss)	[9]			0				(62,143,000)
Investment Owned At Fair Value	[9]			0				0
Net Change in Unrealized Appreciation (Depreciation)	[9]			0				62,183,000
Investment, Affiliated Issuer, Noncontrolled [Member] | Solar Spectrum Holdings L L C [Member] | Common Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating	[2],[17]							0
Realized Gain (Loss)	[17]							(61,502,000)
Investment Owned At Fair Value	[17]			0				0				0
Gross Additions	[6],[17]							0
Gross reductions	[8],[17]							61,502,000
Net Change in Unrealized Appreciation (Depreciation)	[17]							61,502,000
Investment, Affiliated Issuer, Noncontrolled [Member] | Pineapple Energy L L C [Member]
Investments in and Advances to Affiliates [Line Items]
Realized Gain (Loss)	[9]	(2,014,000)	[18]	0		(2,014,000)	[18]	0
Investment cost										12,547,000
Investment Owned At Fair Value		0	[9],[18]	8,469,000	[9]	0	[9],[18]	8,469,000	[9]	8,338,000	[4]
Net Change in Unrealized Appreciation (Depreciation)	[9]	4,631,000	[18]	(52,000)		4,209,000	[18]	9,000
Investment, Affiliated Issuer, Noncontrolled [Member] | Pineapple Energy L L C [Member] | Common Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						0	[1],[19]	0	[2],[20]
Realized Gain (Loss)						0	[19]	0	[20]
Investment Owned At Fair Value		0	[19]	849,000	[20]	0	[19]	849,000	[20]	591,000	[19]	840,000	[20]
Gross Additions						0	[5],[19]	0	[6],[20]
Gross reductions						(4,767,000)	[7],[19]	0	[8],[20]
Net Change in Unrealized Appreciation (Depreciation)						4,176,000	[19]	9,000	[20]
Investment, Affiliated Issuer, Noncontrolled [Member] | Black Crow A I Inc [Member]
Investments in and Advances to Affiliates [Line Items]
Realized Gain (Loss)	[9]	0	[18]	0		3,772,000	[18]	0
Investment Owned At Fair Value	[9]	0	[18]	1,243,000		0	[18]	1,243,000
Net Change in Unrealized Appreciation (Depreciation)	[9]	0	[18]	(66,000)		(120,000)	[18]	2,028,000
Investment, Affiliated Issuer, Noncontrolled [Member] | Black Crow A I Inc [Member] | Preferred Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						0	[1],[21]	0	[2],[22]
Realized Gain (Loss)						3,772,000	[21]	0	[22]
Investment Owned At Fair Value		0	[21]	1,243,000	[22]	0	[21]	1,243,000	[22]	1,120,000	[21]	0	[22]
Gross Additions						0	[5],[21]	1,000,000	[6],[22]
Gross reductions						(1,000,000)	[7],[21]	0	[8],[22]
Net Change in Unrealized Appreciation (Depreciation)						(120,000)	[21]	243,000	[22]
Investment, Affiliated Issuer, Noncontrolled [Member] | Sustainable And Renewable Technology [Member] | Pineapple Energy L L C [Member] | Common Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost										4,767,000
Investment Owned At Fair Value	[4]									591,000
Investment, Affiliated Issuer, Noncontrolled [Member] | Sustainable And Renewable Technology [Member] | Pineapple Energy L L C [Member] | Senior Secured Tranche A [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost										7,500,000
Principal Amount										7,500,000
Investment Owned At Fair Value	[4]									7,500,000
Investment, Affiliated Issuer, Noncontrolled [Member] | Sustainable And Renewable Technology [Member] | Pineapple Energy L L C [Member] | Senior Secured Tranche B [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost										280,000
Investment Owned At Fair Value	[4]									247,000
Investment, Affiliated Issuer, Noncontrolled [Member] | Internet Consumer And Business Services [Member] | Black Crow A I Inc [Member] | Preferred Stock [Member]
Investments in and Advances to Affiliates [Line Items]
Investment cost										$ 1,000,000
Shares										872,797
Investment Owned At Fair Value	[4]									$ 1,120,000
Investment, Affiliated Issuer, Noncontrolled [Member] | Senior Debt [Member] | Solar Spectrum Holdings L L C [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating	[2],[17]							0
Realized Gain (Loss)	[17]							(641,000)
Investment Owned At Fair Value	[17]			0				0				0
Gross Additions	[6],[17]							0
Gross reductions	[8],[17]							681,000
Net Change in Unrealized Appreciation (Depreciation)	[17]							681,000
Investment, Affiliated Issuer, Noncontrolled [Member] | Senior Debt [Member] | Pineapple Energy L L C [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating						1,204,000	[1],[19]	3,000	[2],[20]
Realized Gain (Loss)						(2,014,000)	[19]	0	[20]
Investment Owned At Fair Value		$ 0	[19]	7,620,000	[20]	0	[19]	7,620,000	[20]	$ 7,747,000	[19]	7,500,000	[20]
Gross Additions						0	[5],[19]	120,000	[6],[20]
Gross reductions						(7,780,000)	[7],[19]	0	[8],[20]
Net Change in Unrealized Appreciation (Depreciation)						$ 33,000	[19]	0	[20]
Investment, Affiliated Issuer, Noncontrolled [Member] | Convertible Debt [Member] | Black Crow A I Inc [Member]
Investments in and Advances to Affiliates [Line Items]
Gross Investment Income, Operating	[2],[22]							0
Realized Gain (Loss)	[22]							0
Investment Owned At Fair Value	[22]			$ 0				0				$ 0
Gross Additions	[6],[22]							2,208,000
Gross reductions	[8],[22]							3,993,000
Net Change in Unrealized Appreciation (Depreciation)	[22]							$ 1,785,000
[1] Represents the total amount of interest, fees, or dividends credited to income for the period an investment was an affiliate or control investment. [2] Represents the total amount of interest, fees, or dividends credited to income for the period an investment was an affiliate or control investment. [3] All of the Company’s control and affiliate investments are Level 3 investments valued using significant unobservable inputs. [4] All of the Company’s control and affiliate investments are Level 3 investments valued using significant unobservable inputs. [5] Gross additions include increases in the cost basis of investments resulting from new portfolio investments, paid-in-kind interest or dividends, the amortization of discounts and closing fees and the exchange of one or more existing securities for one or more new securities. [6] Gross additions include increases in the cost basis of investments resulting from new portfolio investments, paid-in-kind interest or dividends, the amortization of discounts and closing fees and the exchange of one or more existing securities for one or more new securities. [7] Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include previously recognized depreciation on investments that become control or affiliate investments during the period. [8] Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include previously recognized depreciation on investments that become control or affiliate investments during the period. [9] In accordance with Rules 3-09, 4-08(g), and Rule 10-01(b)(1) of Regulation S-X, (“Rule 3-09”, “Rule 4-08(g)”, and “Rule 10-01(b)(1)”, respectively), the Company must determine if its unconsolidated subsidiaries are considered “significant subsidiaries”. As of September 30, 2022 and September 30, 2021, there were no unconsolidated subsidiaries that are considered “significant subsidiaries”. [10] Hercules Adviser LLC is a wholly owned subsidiary providing investment management and other services to the Adviser Funds and other External Parties. [11] Hercules Adviser LLC is a wholly-owned subsidiary providing investment management and other services to External Parties. [12] As of December 31, 2021, the Company's investment in Coronado Aesthetics, LLC became classified as a control investment as a result of obtaining more than 25% of the voting securities of the portfolio company. [13] As of March 31, 2018, the Company's investment in Gibraltar Business Capital, LLC became classified as a control investment as a result of obtaining a controlling financial interest. [14] As of March 31, 2018, the Company's investment in Gibraltar Business Capital, LLC became classified as a control investment as a result of obtaining a controlling financial interest. [15] As of March 31, 2017, the Company's investment in Tectura Corporation became classified as a control investment as of result of obtaining more than 50% representation on the portfolio company's board. In May 2018, the Company purchased common shares, thereby obtaining greater than 25% of voting securities of Tectura as of June 30, 2018. [16] As of March 31, 2017, the Company's investment in Tectura Corporation became classified as a control investment as of result of obtaining more than 50% representation on the portfolio company's board. In May 2018, the Company purchased common shares, thereby obtaining greater than 25% of voting securities of Tectura as of June 30, 2018. [17] As of June 30, 2021, the Company’s investments in Solar Spectrum Holdings LLC (p.k.a. Sungevity, Inc.) were written off for a realized loss. [18] As of September 30, 2022, Black Crow AI, Inc. and Pineapple Energy LLC are no longer affiliates as defined under the 1940 Act. [19] During the three months ended September 30, 2022, the Company sold a portion of its investments in Pineapple Energy LLC, as a result it is no longer an affiliate investment.. [20] As of December 11, 2020, the Company’s investment in Pineapple Energy LLC became classified as an affiliate investment as a result of obtaining more than 5% but less than 25% of the voting securities of the portfolio company. [21] During the nine months ended September 30, 2022, the Company sold its investments in Black Crow AI, Inc., as a result it is no longer an affiliate investment. [22] As of March 23, 2021, the Company's investment in Black Crow AI, Inc. became classified as an affiliate investment as a result of obtaining more than 5% but less than 25% of the voting securities of the portfolio company.