Commitments, Contingencies, Concentration of Credit Risk and Off-Balance Sheet Risk - Schedule of Certain Revolving Loan Facilities and Other Commitments with Unfunded Balances (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Unfunded Balances	$ 109,222,122	$ 127,137,393
2-10 Holdco, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Mar. 26, 2026
Unfunded Balances	$ 723,670	723,670
Accordion Partners LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 29, 2029
Unfunded Balances	$ 154,762	278,571
Accordion Partners LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 31, 2028
Unfunded Balances	$ 92,857	123,810
Acquia, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Oct. 31, 2025
Unfunded Balances		779,225
Alcami Corporation
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 21, 2028
Unfunded Balances	$ 546,266	1,420,290
Alcami Corporation
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 21, 2028
Unfunded Balances	$ 874,025
Alpine Acquisition Corp II (48Forty)
Debt Instrument [Line Items]
Debt instrument, maturity date	Nov. 30, 2026
Unfunded Balances	$ 161,164	179,071
AmeriLife Holdings, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 31, 2029
Unfunded Balances	$ 151,515	151,515
AmeriLife Holdings, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 31, 2028
Unfunded Balances	$ 227,273	227,273
Applause App Quality, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Sep. 30, 2025
Unfunded Balances		1,133,535
Applause App Quality, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Sep. 20, 2025
Unfunded Balances	$ 38,988
Appriss Health, LLC (PatientPing)
Debt Instrument [Line Items]
Debt instrument, maturity date	May 06, 2027
Unfunded Balances	$ 272,265	544,531
Aras Corporation
Debt Instrument [Line Items]
Debt instrument, maturity date	Apr. 13, 2027
Unfunded Balances	$ 290,778	581,555
Syntellis Performance Solutions, LLC (Axiom Global, Inc.)
Debt Instrument [Line Items]
Debt instrument, maturity date	Jul. 31, 2027
Unfunded Balances	$ 45,000	45,000
Syntellis Parent, LLC (Axiom Software)
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 02, 2027
Unfunded Balances	$ 360,063	360,063
Sotheby's
Debt Instrument [Line Items]
Debt instrument, maturity date	Jan. 15, 2027
Unfunded Balances	$ 1,601,742	1,601,742
Blackbird Purchaser, Inc. (Ohio Transmission Corp.)
Debt Instrument [Line Items]
Debt instrument, maturity date	Apr. 08, 2027
Unfunded Balances	$ 3,384,549	3,384,549
Bynder Bidco, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Jan. 26, 2029
Unfunded Balances	$ 882,000
Callodine Commercial Finance, LLC (GBFC)
Debt Instrument [Line Items]
Debt instrument, maturity date	Nov. 03, 2025
Unfunded Balances	$ 243,000
Chariot Buyer, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Nov. 03, 2028
Unfunded Balances	$ 797,158	797,158
CSG Buyer, Inc. (Core States)
Debt Instrument [Line Items]
Debt instrument, maturity date	Mar. 31, 2028
Unfunded Balances	$ 2,921,166	4,381,748
AI Aqua Merger Sub, Inc. (Osmosis Buyer) (United Kingdom)
Debt Instrument [Line Items]
Debt instrument, maturity date	Jul. 30, 2028
Unfunded Balances	$ 1,460,583
Bonterra LLC (Fka CyberGrants Holdings, LLC)
Debt Instrument [Line Items]
Debt instrument, maturity date	Sep. 08, 2027
Unfunded Balances	$ 223,092	397,558
Bynder Bidco, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Jan. 26, 2029
Unfunded Balances	$ 4,467
Deerfield Dakota Holding, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Apr. 09, 2027
Unfunded Balances	$ 90,909
Elevate Brands Holdco, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Mar. 14, 2032
Unfunded Balances	$ 16,000,000	16,000,000
Ensemble RCM, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 03, 2026
Unfunded Balances	$ 694,736	998,683
ETX Energy Management Company, LLC (fka NGR Management Company, LLC)
Debt Instrument [Line Items]
Debt instrument, maturity date	May 03, 2027
Unfunded Balances	$ 1,750,277	1,750,277
FinancialForce.com, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Jan. 30, 2029
Unfunded Balances	$ 37,736	37,736
Fusion Risk Management, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 30, 2028
Unfunded Balances	$ 2,500,000	2,500,000
GACP I, LP (Great American Capital)
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 30, 2028
Unfunded Balances	$ 35,870	35,870
GC Champion Acquisition LLC (Numerix)
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 21, 2028
Unfunded Balances		193,947
Grey Orange Incorporated
Debt Instrument [Line Items]
Debt instrument, maturity date	May 06, 2026
Unfunded Balances		1,676,151
Greystone Affordable Housing Initiatives, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Mar. 02, 2026
Unfunded Balances	$ 11,818,182	11,818,182
Gympass US, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Jul. 08, 2027
Unfunded Balances	$ 46,154	46,154
Homerenew Buyer, Inc. (Project Dream)
Debt Instrument [Line Items]
Debt instrument, maturity date	Nov. 23, 2027
Unfunded Balances	$ 170,416
Homerenew Buyer, Inc. (Project Dream)
Debt Instrument [Line Items]
Debt instrument, maturity date	Nov. 23, 2027
Unfunded Balances	$ 1,543,558	2,095,944
Howlco, LLC, (Lone Wolf)
Debt Instrument [Line Items]
Debt instrument, maturity date	Oct. 23, 2026
Unfunded Balances	$ 174,825
ICIMS, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 18, 2028
Unfunded Balances	$ 1,064,123	1,503,556
ICIMS, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 18, 2028
Unfunded Balances	$ 396,825
Integrate.com, Inc. (Infinity Data, Inc.)
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 17, 2027
Unfunded Balances	$ 416,667	1,000,000
Integrity Marketing Acquisition, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 27, 2025
Unfunded Balances	$ 333,333
Integrity Marketing Acquisition, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 27, 2025
Unfunded Balances	$ 10,254,564	10,254,564
IvyRehab Intermediate II, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Apr. 23, 2029
Unfunded Balances	$ 104,167	166,667
JobandTalent USA, Inc. (United Kingdom)
Debt Instrument [Line Items]
Debt instrument, maturity date	Feb. 17, 2025
Unfunded Balances	$ 1,944,444	1,944,444
Kaseya, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Jun. 25, 2029
Unfunded Balances	$ 100,000	200,000
Kawa Solar Holdings Limited (Conergy) (Cayman Islands)
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 31, 2023
Unfunded Balances	$ 100,000
Khoros, LLC (Lithium)
Debt Instrument [Line Items]
Debt instrument, maturity date	Jan. 03, 2024
Unfunded Balances	$ 227,614	991,682
Logicmonitor, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	May 17, 2026
Unfunded Balances	$ 764,068
LJ Avalon Holdings, LLC (Ardurra)
Debt Instrument [Line Items]
Debt instrument, maturity date	Feb. 01, 2030
Unfunded Balances	$ 2,094,199
LJ Avalon Holdings, LLC (Ardurra)
Debt Instrument [Line Items]
Debt instrument, maturity date	Feb. 01, 2029
Unfunded Balances	$ 837,679
Magenta Buyer, LLC (McAfee)
Debt Instrument [Line Items]
Debt instrument, maturity date	Jul. 27, 2028
Unfunded Balances	$ 1,069,947	1,069,947
Internap Holdings, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Jun. 03, 2027
Unfunded Balances	$ 18,519	18,519
Optiv Security, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Feb. 01, 2024
Unfunded Balances	$ 31,250	25,000
Outcomes Group Holdings, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Oct. 26, 2026
Unfunded Balances	$ 1,229,873
Persado, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Jun. 10, 2027
Unfunded Balances		8,608,961
Peter C. Foy & Associates Insurance Services, LLC (PCF Insurance)
Debt Instrument [Line Items]
Debt instrument, maturity date	Nov. 01, 2028
Unfunded Balances		278,157
Pico Quantitative Trading, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Feb. 07, 2025
Unfunded Balances	$ 3,959,072	3,959,072
Plate Newco 1 Limited (Avanti) (United Kingdom)
Debt Instrument [Line Items]
Debt instrument, maturity date	Apr. 06, 2027
Unfunded Balances	$ 1,208,564	1,208,564
EdgeCo Buyer, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Jun. 01, 2026
Unfunded Balances	$ 17,527
Pueblo Mechanical and Controls, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 23, 2028
Unfunded Balances	$ 52,375	155,250
PVHC Holding Corp.
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 03, 2024
Unfunded Balances	$ 44,063	58,750
Razor Group GmbH (Germany)
Debt Instrument [Line Items]
Debt instrument, maturity date	Apr. 28, 2028
Unfunded Balances	$ 5,057,109	6,365,227
Samson Investment Company
Debt Instrument [Line Items]
Debt instrument, maturity date	Feb. 15, 2020
Unfunded Balances	$ 37,538	37,538
SEP Raptor Acquisition, Inc. (Loopio) (Canada)
Debt Instrument [Line Items]
Debt instrument, maturity date	Mar. 31, 2027
Unfunded Balances	$ 20,589,674	20,589,674
Service Logic Acquisition Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Oct. 29, 2027
Unfunded Balances	$ 1,163,276	1,163,276
Showtime Acquisition, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 07, 2028
Unfunded Balances	$ 1,039,117
Nvest, Inc. (SigFig)
Debt Instrument [Line Items]
Debt instrument, maturity date	Sep. 15, 2025
Unfunded Balances	$ 1,298,896
Streamland Media Midco LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Aug. 31, 2023
Unfunded Balances		120,000
Suited Connector, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 01, 2027
Unfunded Balances		852,273
SupplyOne, Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Feb. 01, 2024
Unfunded Balances	$ 1,256,026	1,256,026
Thras.io, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 18, 2026
Unfunded Balances		8,787,651
Tahoe Finco, LLC (Talend)
Debt Instrument [Line Items]
Debt instrument, maturity date	Oct. 01, 2028
Unfunded Balances	$ 26,980
Wealth Enhancement Group, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Oct. 04, 2027
Unfunded Balances	$ 182,991	276,194
Thras.io, LLC
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 18, 2026
Unfunded Balances	$ 1,329,250	1,329,250
Zendesk Inc.
Debt Instrument [Line Items]
Debt instrument, maturity date	Nov. 22, 2028
Unfunded Balances	$ 95,503	134,827
Zilliant Incorporated
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 21, 2027
Unfunded Balances	$ 39,325
Zilliant Incorporated
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 21, 2027
Unfunded Balances	$ 370,370	$ 518,519
Zilliant Incorporated
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 21, 2027
Unfunded Balances	$ 148,148