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Consolidated Schedule of Investments (Parenthetical) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Secured borrowings $ 16,880,000 $ 17,637,000
Additional interest rate on investments, PIK   0.04%
Interest earning on unfunded balance commitment 0.50% 0.50%
Ownership percentage of outstanding voting securities in portfolio investment   25.00%
Minimum    
Ownership percentage of outstanding voting securities in portfolio investment 5.00% 5.00%
First Lien Debt    
Secured borrowings $ 300,000 $ 300,000
Control Investments    
Ownership percentage of outstanding voting securities in portfolio investment 25.00%  
Control Investments | Mesa Line Services, LLC | Utilities: Services | Common Equity (10 shares)    
Investment in number of shares or units [1],[2],[3]   10
Control Investments | US GreenFiber, LLC | Building Products Manufacturing | Common Equity (2,522 units)    
Investment in number of shares or units 2,522 [4],[5],[6],[7],[8],[9] 2,522 [1],[2],[3]
Control Investments | US GreenFiber, LLC | Building Products Manufacturing | Common Equity (425,508 units)    
Investment in number of shares or units 425,508 [4],[5],[6],[7],[9] 425,508 [1],[2],[3]
Control Investments | US GreenFiber, LLC | Building Products Manufacturing | Common Equity (1,022,813 units)    
Investment in number of shares or units 1,022,813 [4],[5],[6],[7],[8],[9] 1,022,813 [1],[2],[3]
Control Investments | EBL, LLC (EbLens) | Retail | Common Equity (75,000 units)    
Investment in number of shares or units [4],[5],[6],[9],[10],[11] 75,000  
Control Investments | EBL, LLC (EbLens) | Retail | Common Equity (375 units) ($375 unfunded commitment)    
Investment in number of shares or units [4],[5],[6],[9],[10] 375  
Unfunded commitment [4],[5],[6],[9],[10] $ 375,000  
Affiliate Investments | Applegate Greenfiber Intermediate Inc. (fka US GreenFiber, LLC) | Building Products Manufacturing | Common Equity (5,690 units)    
Investment in number of shares or units 5,690 [4],[5],[6],[8],[9],[12],[13] 5,690 [1],[2],[3],[14]
Affiliate Investments | Applegate Greenfiber Intermediate Inc. (fka US GreenFiber, LLC) | Building Products Manufacturing | Common Equity (7,113 units)    
Investment in number of shares or units 7,113 [4],[5],[6],[8],[9],[12],[13] 7,113 [1],[2],[3],[14]
Affiliate Investments | Applegate Greenfiber Intermediate Inc. (fka US GreenFiber, LLC) | Building Products Manufacturing | Common Equity (2,012 units)    
Investment in number of shares or units 2,012 [4],[5],[6],[8],[9],[12],[13] 2,012 [1],[2],[3],[14]
Affiliate Investments | FAR Research Inc. | Specialty Chemicals | Common Equity (1,396 units)    
Investment in number of shares or units [1],[2],[3],[14]   1,396
Affiliate Investments | Medsurant Holdings, LLC | Healthcare Services | Preferred Equity (84,997 units)    
Investment in number of shares or units 84,997 [4],[5],[6],[8],[9],[13] 84,997 [1],[2],[3],[14]
Affiliate Investments | Medsurant Holdings, LLC | Healthcare Services | Warrant (252,588 units)    
Investment in number of shares or units 252,588 [4],[5],[6],[8],[9],[13],[15] 252,588 [1],[2],[3],[14]
Affiliate Investments | Mirage Trailers LLC | Utility Equipment Manufacturing | Common Equity (2,500,000 shares)    
Investment in number of shares or units [1],[2],[3],[14]   2,500,000
Affiliate Investments | Pfanstiehl, Inc | Healthcare Products | Common Equity - Class A-2 (42,500 units)    
Investment in number of shares or units [1],[2],[3],[14]   4,250
Affiliate Investments | Pfanstiehl, Inc | Healthcare Products | Common Equity (2,550 units)    
Investment in number of shares or units [4],[5],[6],[9],[13] 2,550  
Affiliate Investments | Pinnergy, Ltd. | Oil & Gas Services | Common Equity Class A Two [Member]    
Investment in number of shares or units [1],[2],[3],[14]   42,500
Affiliate Investments | Spectra A&D Acquisition, Inc. (fka FDS Avionics Corp.) | First Lien Debt    
Additional interest rate on investments   5.60%
Affiliate Investments | Spectra A&D Acquisition, Inc. (fka FDS Avionics Corp.) | Aerospace & Defense Manufacturing | Common Equity (41,290 units)    
Investment in number of shares or units 38,493 [4],[5],[6],[9] 41,290 [1],[2],[3],[14]
Affiliate Investments | Spectra A&D Acquisition, Inc. (fka FDS Avionics Corp.) | Aerospace & Defense Manufacturing | Common Equity (12,035 units)    
Investment in number of shares or units 12,035 [4],[5],[6],[9] 12,035 [1],[2],[3],[14]
Affiliate Investments | Spectra A&D Acquisition, Inc. (fka FDS Avionics Corp.) | Aerospace & Defense Manufacturing | Common Equity (4,921 units)    
Investment in number of shares or units [4],[5],[6],[9] 4,663  
Affiliate Investments | Steward Holding LLC (dba Steward Advanced Materials) | Aerospace & Defense Manufacturing | Common Equity (1,000,000 units)    
Investment in number of shares or units 1,000,000 [4],[5],[6] 1,000,000 [1],[2],[3],[14]
Non-control/Non-affiliate Investments    
Additional interest rate on investments, PIK   1.87%
Interest earning on unfunded balance commitment   1.00%
Non-control/Non-affiliate Investments | First Lien Debt    
Additional interest rate on investments, PIK   1.00%
Non-control/Non-affiliate Investments | Component Manufacturing    
Additional interest rate on investments   7.05%
Non-control/Non-affiliate Investments | Business Services    
Secured borrowings   $ 13,500,000
Non-control/Non-affiliate Investments | Business Services | First Lien Debt    
Additional interest rate on investments   4.83%
Non-control/Non-affiliate Investments | Specialty Distribution | First Lien Debt    
Additional interest rate on investments   4.84%
Non-control/Non-affiliate Investments | Consumer Products | First Lien Debt    
Additional interest rate on investments   3.43%
Non-control/Non-affiliate Investments | Spectra A&D Acquisition, Inc. (fka FDS Avionics Corp.) | Aerospace & Defense Manufacturing | First Lien Debt    
Additional interest rate on investments 4.54%  
Non-control/Non-affiliate Investments | 2KDirect, Inc. (dba iPromote) | First Lien Debt    
Secured borrowings   $ 4,000.0
Non-control/Non-affiliate Investments | 2KDirect, Inc. (dba iPromote) | Information Technology Services | Common Equity (1,000,000 units)    
Investment in number of shares or units 1,000,000 [4],[5],[6] 1,000,000 [1],[2],[3]
Non-control/Non-affiliate Investments | 2KDirect, Inc. (dba iPromote) | Information Technology Services | First Lien Debt    
Additional interest rate on investments 2.21%  
Non-control/Non-affiliate Investments | 2KDirect, Inc. (dba iPromote) | Information Technology Services | First Lien Debt    
Secured borrowings $ 4,000,000.0  
Non-control/Non-affiliate Investments | Acendre Midco, Inc. | Information Technology Services | Common Equity (500,000 shares)    
Investment in number of shares or units 500,000 [4],[5],[6],[9] 500,000 [1],[2],[3]
Non-control/Non-affiliate Investments | Acendre Midco, Inc. | Information Technology Services | Revolving Loan ($1,000 unfunded commitment)    
Unfunded commitment $ 1,000,000 [4],[5],[6],[9],[13] $ 1,000,000 [1],[2],[3]
Non-control/Non-affiliate Investments | Acendre Midco, Inc. | Information Technology Services | Warrant (150,000 shares)    
Investment in number of shares or units 150,000 [4],[5],[6],[9],[15] 150,000 [1],[2],[3]
Non-control/Non-affiliate Investments | Acendre Midco, Inc. | Information Technology Services | Preferred Equity (77,016 shares)    
Investment in number of shares or units [4],[5],[6],[9] 77,016  
Non-control/Non-affiliate Investments | Aeronix Inc. | First Lien Debt    
Additional interest rate on investments   4.86%
Non-control/Non-affiliate Investments | Aeronix Inc. | Aerospace & Defense Manufacturing | Common Equity (500 units)    
Investment in number of shares or units [1],[2],[3]   500
Non-control/Non-affiliate Investments | Aeronix Inc. | Aerospace & Defense Manufacturing | Common Equity (549 units)    
Investment in number of shares or units [4],[5],[6] 549  
Non-control/Non-affiliate Investments | Aeronix Inc. | Aerospace & Defense Manufacturing | First Lien Debt    
Additional interest rate on investments 4.65%  
Non-control/Non-affiliate Investments | Allredi, LLC (fka Marco Group International OpCo, LLC) | Industrial Cleaning & Coatings | Common Equity (39,443 units)    
Investment in number of shares or units 39,443 [4],[5],[6],[8],[9] 39,443 [1],[2],[3]
Non-control/Non-affiliate Investments | Allredi, LLC (fka Marco Group International OpCo, LLC) | Industrial Cleaning & Coatings | Common Equity (570,636 units)    
Investment in number of shares or units 570,636 [4],[5],[6],[8],[9] 570,636 [1],[2],[3]
Non-control/Non-affiliate Investments | American AllWaste LLC (dba WasteWater Transport Services) | Environmental Industries | First Lien Debt    
Additional interest rate on investments 3.76%  
Non-control/Non-affiliate Investments | American AllWaste LLC (dba WasteWater Transport Services) | Environmental Industries | First Lien Debt    
Additional interest rate on investments   4.07%
Non-control/Non-affiliate Investments | American AllWaste LLC (dba WasteWater Transport Services) | Environmental Industries | Preferred Equity (141 units)    
Investment in number of shares or units 141 [4],[5],[6],[8],[9] 141 [1],[2],[3]
Non-control/Non-affiliate Investments | American AllWaste LLC (dba WasteWater Transport Services) | Environmental Industries | Preferred Equity (74 units)    
Investment in number of shares or units 74 [4],[5],[6],[8],[9] 74 [1],[2],[3]
Non-control/Non-affiliate Investments | American AllWaste LLC (dba WasteWater Transport Services) | Environmental Industries | Preferred Equity (207 units)    
Investment in number of shares or units 207 [4],[5],[6],[8],[9] 207 [1],[2],[3]
Non-control/Non-affiliate Investments | American AllWaste LLC (dba WasteWater Transport Services) | Environmental Industries | Preferred Equity (500 units)    
Investment in number of shares or units 500 [4],[5],[6],[8],[9] 500 [1],[2],[3]
Non-control/Non-affiliate Investments | AmeriWater, LLC | Component Manufacturing | First Lien Debt    
Additional interest rate on investments 3.28% 3.50%
Non-control/Non-affiliate Investments | AmeriWater, LLC | Component Manufacturing | Common Equity (1,000 units)    
Investment in number of shares or units [4],[5],[6],[8],[9] 1,000  
Non-control/Non-affiliate Investments | AOM Intermediate Holdco, LLC (dba AllOver Media) | Information Technology Services | Common Equity (750 units)    
Investment in number of shares or units [4],[5],[6],[8],[9] 750  
Non-control/Non-affiliate Investments | AOM Intermediate Holdco, LLC (dba AllOver Media) | Information Technology Services | First Lien Debt    
Additional interest rate on investments 4.68%  
Non-control/Non-affiliate Investments | APM Intermediate Holdings, LLC (dba Artistic Paver Manufacturing, Inc.) | Building Products Manufacturing | Common Equity (1,200 units)    
Investment in number of shares or units [4],[5],[6],[8],[9] 1,200  
Non-control/Non-affiliate Investments | APM Intermediate Holdings, LLC (dba Artistic Paver Manufacturing, Inc.) | Building Products Manufacturing | First Lien Debt    
Additional interest rate on investments 3.50%  
Non-control/Non-affiliate Investments | Applied Data Corporation | Information Technology Services    
Additional interest rate on investments   7.56%
Non-control/Non-affiliate Investments | Applied Data Corporation | Information Technology Services | Common Equity (22 units)    
Investment in number of shares or units [1],[2],[3]   22
Non-control/Non-affiliate Investments | Applied Data Corporation | Information Technology Services | Common Equity (24 units)    
Investment in number of shares or units [4],[5],[6] 24  
Non-control/Non-affiliate Investments | Applied Data Corporation | Information Technology Services | First Lien Debt    
Additional interest rate on investments 3.11%  
Non-control/Non-affiliate Investments | Applied Data Corporation | Information Technology Services | Preferred Equity (1,104,539 units)    
Investment in number of shares or units [1],[2],[3]   1,104,539
Non-control/Non-affiliate Investments | Applied Data Corporation | Information Technology Services | Preferred Equity (1,184,711 units)    
Investment in number of shares or units [4],[5],[6] 1,184,711  
Non-control/Non-affiliate Investments | Auto CRM LLC (dba Dealer Holdings) | Information Technology Services | Common Equity (500 units)    
Investment in number of shares or units 500 [4],[5],[6],[9] 500 [1],[2],[3]
Non-control/Non-affiliate Investments | Auto CRM LLC (dba Dealer Holdings) | Information Technology Services | First Lien Debt    
Additional interest rate on investments 3.26%  
Non-control/Non-affiliate Investments | AVC Investors, LLC (dba Auveco) | Specialty Distribution | Common Equity (5,000 units)    
Investment in number of shares or units [1],[2],[3]   5,000
Non-control/Non-affiliate Investments | B&B Roadway and Security Solutions, LLC | Component Manufacturing | Common Equity (50,000 units)    
Investment in number of shares or units [1],[2],[3]   50,000
Non-control/Non-affiliate Investments | Bandon Fitness (Texas), Inc. | Retail | Common Equity (545,810 units)    
Investment in number of shares or units [1],[2],[3]   545,810
Non-control/Non-affiliate Investments | Bedford Precision Parts LLC | Specialty Distribution | Common Equity (500,000 Units)    
Investment in number of shares or units 500,000 [4],[5],[6],[8],[9] 500,000 [1],[2],[3]
Non-control/Non-affiliate Investments | Bedford Precision Parts LLC | Specialty Distribution | First Lien Debt    
Additional interest rate on investments 4.24%  
Non-control/Non-affiliate Investments | Cardback Intermediate LLC (dba Chargeback Gurus) | Information Technology Services | Common Equity (495 shares)    
Investment in number of shares or units 495 [4],[5],[6],[9] 495 [1],[2],[3]
Non-control/Non-affiliate Investments | Cardback Intermediate LLC (dba Chargeback Gurus) | Information Technology Services | First Lien Debt    
Additional interest rate on investments 1.63% 1.74%
Non-control/Non-affiliate Investments | Cardback Intermediate LLC (dba Chargeback Gurus) | Information Technology Services | Preferred Equity (495 shares)    
Investment in number of shares or units 495 [4],[5],[6],[9] 495 [1],[2],[3]
Non-control/Non-affiliate Investments | Cardboard Box LLC (dba Anthony's Coal Fired Pizza) | Aerospace & Defense Manufacturing | Common and Preferred Equity Units    
Percentage of minimum qualifying assets to purchase non qualifying assets   70.00%
Non-control/Non-affiliate Investments | Cardboard Box LLC (dba Anthony's Coal Fired Pizza) | Restaurants | Common Equity (521,021 units)    
Investment in number of shares or units [1],[2],[3]   521,021
Non-control/Non-affiliate Investments | Cardboard Box LLC (dba Anthony's Coal Fired Pizza) | Restaurants | Common Equity (14,201 units)    
Investment in number of shares or units [4],[5],[6],[9] 14,201  
Non-control/Non-affiliate Investments | Cardboard Box LLC (dba Anthony's Coal Fired Pizza) | Restaurants | Common and Preferred Equity Units    
Percentage of non-qualifying assets fair value 1.36%  
Percentage of minimum qualifying assets to purchase non qualifying assets 70.00%  
Non-control/Non-affiliate Investments | Cardboard Box LLC (dba Anthony's Coal Fired Pizza) | Restaurants | Preferred Equity (9,787 Unit)    
Investment in number of shares or units 9,787 [4],[5],[6],[9] 1,043,133 [1],[2],[3]
Non-control/Non-affiliate Investments | CIH Intermediate, LLC | Business Services | Common Equity (563 Shares)    
Investment in number of shares or units [4],[5],[6],[9] 563  
Non-control/Non-affiliate Investments | CIH Intermediate, LLC | Business Services | Preferred Equity (563 shares)    
Investment in number of shares or units [4],[5],[6],[9] 563  
Non-control/Non-affiliate Investments | Combined Systems, Inc. | Aerospace & Defense Manufacturing | Revolving Loan ($162 unfunded commitment)    
Unfunded commitment [4],[5],[6],[9] $ 162,000  
Non-control/Non-affiliate Investments | Combined Systems, Inc. | Aerospace & Defense Manufacturing | Revolving Loan ($605 unfunded commitment)    
Unfunded commitment [1],[2],[3]   $ 605,000
Non-control/Non-affiliate Investments | Comply365, LLC | Aerospace & Defense Manufacturing | Common Equity (1,000,000 units)    
Investment in number of shares or units 1,000,000 [4],[5],[6] 1,000,000 [1],[2],[3]
Non-control/Non-affiliate Investments | CRS Solutions Holdings, LLC (dba CRS Texas) | Business Services | Common Equity (538,875 units)    
Investment in number of shares or units [1],[2],[3]   538,875
Non-control/Non-affiliate Investments | CRS Solutions Holdings, LLC (dba CRS Texas) | Business Services | Common Equity (Class A Units) (574,929 units)    
Investment in number of shares or units [4],[5],[6],[8],[9] 574,929  
Non-control/Non-affiliate Investments | Dataguise, Inc. | Information Technology Services | Common Equity (909 shares)    
Investment in number of shares or units 909 [4],[5],[6],[9] 909 [1],[2],[3]
Non-control/Non-affiliate Investments | Diversified Search LLC | Business Services | Common Equity (573 units)    
Investment in number of shares or units 573 [4],[5],[6],[8],[9] 573 [1],[2],[3]
Non-control/Non-affiliate Investments | Diversified Search LLC | Business Services | First Lien Debt    
Additional interest rate on investments 2.32% 2.64%
Non-control/Non-affiliate Investments | EBL, LLC (EbLens) | Retail | Common Equity (75,000 units)    
Investment in number of shares or units [1],[2],[3]   75,000
Non-control/Non-affiliate Investments | ECM Industries, LLC | Component Manufacturing | Common Equity (1,000,000 units)    
Investment in number of shares or units 1,000,000 [4],[5],[6],[8],[9] 1,000,000 [1],[2],[3]
Non-control/Non-affiliate Investments | Elements Brands, LLC | Revolving Loan ($838 unfunded commitment) | Consumer Products    
Unfunded commitment [1],[2],[3]   $ 838,000
Non-control/Non-affiliate Investments | Fishbowl Solutions, LLC | Information Technology Services | First Lien Debt    
Additional interest rate on investments 2.72%  
Non-control/Non-affiliate Investments | Frontline Food Services, LLC (f/k/a Accent Food Services, LLC) | Vending Equipment Manufacturing | Common Equity (Class B Units) (124 units)    
Investment in number of shares or units [1],[2],[3]   124
Non-control/Non-affiliate Investments | Frontline Food Services, LLC (f/k/a Accent Food Services, LLC) | Vending Equipment Manufacturing | Preferred Equity (Class A Units) (46 units)    
Investment in number of shares or units [1],[2],[3]   46
Non-control/Non-affiliate Investments | Frontline Food Services, LLC (f/k/a Accent Food Services, LLC) | Vending Equipment Manufacturing | Preferred Equity (Class C Units) (100 units)    
Investment in number of shares or units [1],[2],[3]   100
Non-control/Non-affiliate Investments | Global Plasma Solutions, Inc | Component Manufacturing | Common Equity (947 shares)    
Investment in number of shares or units 947 [4],[5],[6],[9] 947 [1],[2],[3]
Non-control/Non-affiliate Investments | GP&C Operations, LLC (dba Garlock Printing and Converting) | Component Manufacturing | Common Equity (515,625 units)    
Investment in number of shares or units 515,625 [4],[5],[6],[8],[9] 515,625 [1],[2],[3]
Non-control/Non-affiliate Investments | GP&C Operations, LLC (dba Garlock Printing and Converting) | Component Manufacturing | First Lien Debt    
Additional interest rate on investments 7.11%  
Non-control/Non-affiliate Investments | Gurobi Optimization, LLC | Information Technology Services | Common Equity (3 shares)    
Investment in number of shares or units 3 [4],[5],[6],[8],[9] 3 [1],[2],[3]
Non-control/Non-affiliate Investments | Haematologic Technologies, Inc. | Healthcare Services | Common Equity (630 units)    
Investment in number of shares or units 630 [4],[5],[6],[8],[9] 630 [1],[2],[3]
Non-control/Non-affiliate Investments | Haematologic Technologies, Inc. | Healthcare Services | First Lien Debt    
Additional interest rate on investments 2.73%  
Non-control/Non-affiliate Investments | Haematologic Technologies, Inc. | Healthcare Services | Tranche Six    
Additional interest rate on investments   2.81%
Non-control/Non-affiliate Investments | Hallmark Health Care Solutions, Inc. | Healthcare Services | Common Equity (750,000 units)    
Investment in number of shares or units 750,000 [4],[5],[6],[9] 750,000 [1],[2],[3]
Non-control/Non-affiliate Investments | Hallmark Health Care Solutions, Inc. | Healthcare Services | First Lien Debt    
Additional interest rate on investments 3.53% 3.53%
Non-control/Non-affiliate Investments | Healthfuse, LLC | Healthcare Services | Preferred Equity (197,980 units)    
Investment in number of shares or units 197,980 [4],[5],[6] 197,980 [1],[2],[3]
Non-control/Non-affiliate Investments | Hub Acquisition Sub, LLC (dba Hub Pen) | Promotional Products | Common Equity (3,750 units)    
Investment in number of shares or units 3,750 [4],[5],[6] 3,750 [1],[2],[3]
Non-control/Non-affiliate Investments | Hub Acquisition Sub, LLC (dba Hub Pen) | Promotional Products | Preferred Equity (868 units)    
Investment in number of shares or units 868 [4],[5],[6],[9] 868 [1],[2],[3]
Non-control/Non-affiliate Investments | IBH Holdings, LLC (fka Inflexxion, Inc.) | Business Services | Common Equity (150,000 units)    
Investment in number of shares or units 150,000 [4],[5],[6],[9] 150,000 [1],[2],[3]
Non-control/Non-affiliate Investments | Ipro Tech, LLC | Information Technology Services    
Additional interest rate on investments   2.99%
Non-control/Non-affiliate Investments | Ipro Tech, LLC | Information Technology Services | First Lien Debt    
Additional interest rate on investments 2.93%  
Additional interest rate on investments, PIK 0.98%  
Non-control/Non-affiliate Investments | Ipro Tech, LLC | Information Technology Services | Preferred Equity (682,075 units)    
Investment in number of shares or units 682,075 [4],[5],[6],[9] 682,075 [1],[2],[3]
Non-control/Non-affiliate Investments | ISI PSG Holdings, LLC (dba Incentive Solutions, Inc.) | Business Services | Common Equity (256,964 units)    
Investment in number of shares or units 256,964 [4],[5],[6],[8],[9] 256,964 [1],[2],[3]
Non-control/Non-affiliate Investments | ISI PSG Holdings, LLC (dba Incentive Solutions, Inc.) | Business Services | First Lien Debt    
Additional interest rate on investments 4.11% 4.11%
Non-control/Non-affiliate Investments | ISI PSG Holdings, LLC (dba Incentive Solutions, Inc.) | Business Services | First Lien Debt    
Secured borrowings $ 13,500,000  
Non-control/Non-affiliate Investments | Level Education Group, LLC (dba CE4Less) | Business Services | Common Equity (100 shares)    
Investment in number of shares or units [1],[2],[3]   100
Non-control/Non-affiliate Investments | Level Education Group, LLC (dba CE4Less) | Business Services | Common Equity (5,000 units)    
Investment in number of shares or units [1],[2],[3]   5,000
Non-control/Non-affiliate Investments | Level Education Group, LLC (dba CE4Less) | Business Services | Common Equity (50 shares)    
Investment in number of shares or units [1],[2],[3]   50
Non-control/Non-affiliate Investments | Level Education Group, LLC (dba CE4Less) | Business Services | Common Equity (378 units)    
Investment in number of shares or units [1],[2],[3]   378
Non-control/Non-affiliate Investments | Level Education Group, LLC (dba CE4Less) | Business Services | Common Equity (1,000,000 units)    
Investment in number of shares or units 1,000,000 [4],[5],[6],[9] 1,000,000 [1],[2],[3]
Non-control/Non-affiliate Investments | Level Education Group, LLC (dba CE4Less) | Business Services | First Lien Debt    
Additional interest rate on investments 4.83%  
Non-control/Non-affiliate Investments | Level Education Group, LLC (dba CE4Less) | Business Services | Warrant (7,192 shares)    
Investment in number of shares or units [1],[2],[3]   7,192
Non-control/Non-affiliate Investments | Level Education Group, LLC (dba CE4Less) | Business Services | Warrant (4.79% of Junior Subordinated Notes)    
Warrant or rights percentage of outstanding debt principal to purchase [1],[2],[3]   4.79%
Non-control/Non-affiliate Investments | LifeSpan Biosciences, Inc. | Healthcare Products | Common Equity (100 shares)    
Investment in number of shares or units [4],[5],[6],[9] 100  
Non-control/Non-affiliate Investments | Micronics Filtration Holdings, Inc. (dba Micronics Engineered Filtration Group, Inc.) | Component Manufacturing | Common Equity (14,400 units)    
Investment in number of shares or units [4],[5],[6],[9] 14,400  
Non-control/Non-affiliate Investments | Micronics Filtration Holdings, Inc. (dba Micronics Engineered Filtration Group, Inc.) | Component Manufacturing | First Lien Debt    
Additional interest rate on investments 4.76%  
Non-control/Non-affiliate Investments | Midwest Transit Equipment, Inc. | Transportation Services | Warrant (4.79% of Junior Subordinated Notes)    
Warrant or rights percentage of outstanding debt principal to purchase 4.79% 4.79%
Non-control/Non-affiliate Investments | Netbase Solutions, Inc. (dba Netbase Quid) | Information Technology Services | First Lien Debt    
Unfunded commitment [4],[5],[6],[13],[16],[17] $ 3,300,000  
Additional interest rate on investments   2.25%
Non-control/Non-affiliate Investments | Netbase Solutions, Inc. (dba Netbase Quid) | Information Technology Services | First Lien Debt ($3,300 unfunded commitment)    
Additional interest rate on investments 1.25%  
Non-control/Non-affiliate Investments | NGT Acquisition Holdings, LLC (dba Techniks Industries) | Component Manufacturing | Common Equity (378 units)    
Investment in number of shares or units [4],[5],[6],[9] 378  
Non-control/Non-affiliate Investments | OnePath Systems, LLC | Information Technology Services | Common Equity (732,542 shares)    
Investment in number of shares or units [4],[5],[6],[9] 732,542  
Non-control/Non-affiliate Investments | Palmetto Moon, LLC | Retail | Common Equity (499 units)    
Investment in number of shares or units 499 [4],[5],[6],[9] 499 [1],[2],[3]
Non-control/Non-affiliate Investments | Pool & Electrical Products, LLC | Specialty Distribution | Common Equity (18,298 units)    
Investment in number of shares or units 15,000 [4],[5],[6],[8],[9] 15,000 [1],[2],[3]
Non-control/Non-affiliate Investments | Power Grid Components, Inc. | Specialty Distribution | Common Equity (10,622 shares)    
Investment in number of shares or units 10,622 [4],[5],[6],[9] 10,622 [1],[2],[3]
Non-control/Non-affiliate Investments | Power Grid Components, Inc. | Specialty Distribution | Preferred Equity (48 shares)    
Investment in number of shares or units 48 [4],[5],[6],[9] 48 [1],[2],[3]
Non-control/Non-affiliate Investments | Power Grid Components, Inc. | Specialty Distribution | Preferred Equity (392 shares)    
Investment in number of shares or units 392 [4],[5],[6],[9] 392 [1],[2],[3]
Non-control/Non-affiliate Investments | PowerGrid Services Acquisition, LLC | Utilities: Services | Common Equity (5,341 units)    
Investment in number of shares or units [4],[5],[6],[8],[9] 5,341  
Non-control/Non-affiliate Investments | PowerGrid Services Acquisition, LLC | Utilities: Services | Common Equity (5,000 units)    
Investment in number of shares or units [1],[2],[3]   5,000
Non-control/Non-affiliate Investments | Prime AE Group, Inc. | Business Services | Preferred Equity (900,000 shares)    
Investment in number of shares or units 900,000 [4],[5],[6],[9] 900,000 [1],[2],[3]
Non-control/Non-affiliate Investments | Pugh Lubricants, LLC | Specialty Distribution | Common Equity (3,062 units)    
Investment in number of shares or units [1],[2],[3]   3,062
Non-control/Non-affiliate Investments | R1 Holdings, LLC (dba RoadOne IntermodaLogistics) | Transportation Services | First Lien Debt ($2,489 unfunded commitment)    
Unfunded commitment [4],[5],[6],[9],[13],[18] $ 2,489,000  
Non-control/Non-affiliate Investments | R1 Holdings, LLC (dba RoadOne IntermodaLogistics) | Transportation Services | Subordinated Debt ($417 unfunded commitment)    
Unfunded commitment [4],[5],[6],[9],[13],[18] $ 417,000  
Non-control/Non-affiliate Investments | R1 Holdings, LLC (dba RoadOne IntermodaLogistics) | Transportation Services | Common Equity (280,000 units) ($70 unfunded commitment)    
Investment in number of shares or units [4],[5],[6],[9] 280,000  
Unfunded commitment [4],[5],[6],[9] $ 70,000  
Non-control/Non-affiliate Investments | Rhino Assembly Company, LLC | Specialty Distribution | Common Equity (Class A Units) (10,915 units)    
Investment in number of shares or units [4],[5],[6],[8],[9] 10,915  
Non-control/Non-affiliate Investments | Rhino Assembly Company, LLC | Specialty Distribution | Common Equity (Class F Units) (710 units)    
Investment in number of shares or units [4],[5],[6],[8],[9] 710  
Non-control/Non-affiliate Investments | Rhino Assembly Company, LLC | Specialty Distribution | Common Equity (Class A Units) (8,864 units)    
Investment in number of shares or units [1],[2],[3]   8,864
Non-control/Non-affiliate Investments | Rhino Assembly Company, LLC | Specialty Distribution | Common Equity (Class W Units) (710 units)    
Investment in number of shares or units [1],[2],[3]   710
Non-control/Non-affiliate Investments | Rhino Assembly Company, LLC | Specialty Distribution | Delayed Draw Commitment ($875 unfunded commitment)    
Unfunded commitment [1],[2],[3]   $ 875,000
Non-control/Non-affiliate Investments | Road Safety Services, Inc. | Business Services | Common Equity (779 units)    
Investment in number of shares or units 779 [4],[5],[6] 779 [1],[2],[3]
Non-control/Non-affiliate Investments | SES Investors, LLC (dba SES Foam) | Building Products Manufacturing | Common Equity (6,000 units)    
Investment in number of shares or units [1],[2],[3]   6,000
Non-control/Non-affiliate Investments | SpendMend LLC | Business Services | Common Equity (1,000,000 units)    
Investment in number of shares or units [1],[2],[3]   1,000,000
Non-control/Non-affiliate Investments | Suited Connector LLC | Information Technology Services | Common Equity (7,500 units)    
Investment in number of shares or units 7,500 [4],[5],[6] 7,500 [1],[2],[3]
Non-control/Non-affiliate Investments | Tedia Company, LLC | Healthcare Products | Preferred Equity (Series A) (1,000 units)    
Investment in number of shares or units [4],[5],[6],[8],[9] 1,000  
Non-control/Non-affiliate Investments | Tedia Company, LLC | Healthcare Products | Delayed Draw Commitment ($3,000 unfunded commitment)    
Unfunded commitment [4],[5],[6],[9],[18] $ 3,000,000  
Interest earning on unfunded balance commitment 1.00%  
Non-control/Non-affiliate Investments | Tedia Company, LLC | Healthcare Products | Revolving Loan ($2,400 unfunded commitment)    
Unfunded commitment [4],[5],[6],[9],[13] $ 2,400,000  
Non-control/Non-affiliate Investments | TransGo, LLC | Component Manufacturing | Common Equity (500 units)    
Investment in number of shares or units [1],[2],[3]   500
Non-control/Non-affiliate Investments | The Kyjen Company, LLC (dba Outward Hound) | Consumer Products | Common Equity (855 shares)    
Investment in number of shares or units 855 [4],[5],[6],[9] 855 [1],[2],[3]
Non-control/Non-affiliate Investments | The Tranzonic Companies | Specialty Distribution | Common Equity (1 units)    
Investment in number of shares or units [1],[2],[3]   1
Non-control/Non-affiliate Investments | The Tranzonic Companies | Specialty Distribution | Preferred Equity (5,653 units)    
Investment in number of shares or units [1],[2],[3]   5,653
Non-control/Non-affiliate Investments | UBEO, LLC | Business Services | Common Equity (705,000 units)    
Investment in number of shares or units 705,000 [4],[5],[6],[8],[9] 705,000 [1],[2],[3]
Non-control/Non-affiliate Investments | United Biologics, LLC | Healthcare Services | Preferred Equity (98,377 units)    
Investment in number of shares or units 98,377 [4],[5],[6],[8],[9] 98,377 [1],[2],[3]
Non-control/Non-affiliate Investments | United Biologics, LLC | Healthcare Services | Warrant (57,469 units)    
Investment in number of shares or units 57,469 [4],[5],[6],[9],[15] 57,469 [1],[2],[3]
Non-control/Non-affiliate Investments | UPG Company, LLC | Component Manufacturing | First Lien Debt    
Additional interest rate on investments 5.62% 3.46%
Non-control/Non-affiliate Investments | Virginia Tile Company, LLC | Specialty Distribution | Common Equity (17 units)    
Investment in number of shares or units 17 [4],[5],[6],[9] 17 [1],[2],[3]
Non-control/Non-affiliate Investments | Western's Smokehouse, LLC | Consumer Products | First Lien Debt    
Additional interest rate on investments 1.77%  
Non-control/Non-affiliate Investments | Western's Smokehouse, LLC | Consumer Products | Delayed Draw Commitment ($2,702 unfunded commitment)    
Unfunded commitment [4],[5],[6],[9],[13],[19] $ 2,702,000  
Additional interest rate on investments 5.75%  
Non-control/Non-affiliate Investments | Winona Foods, Inc. | Specialty Distribution | First Lien Debt    
Additional interest rate on investments 5.72% 7.54%
Non-control/Non-affiliate Investments | Wonderware Holdings, LLC (dba CORE Business Technologies) | Information Technology Services | First Lien Debt    
Additional interest rate on investments 4.45% 5.70%
Non-control/Non-affiliate Investments | Wonderware Holdings, LLC (dba CORE Business Technologies) | Information Technology Services | First Lien Debt ($2,000 unfunded commitment)    
Unfunded commitment [1],[2],[3]   $ 2,000,000
Non-control/Non-affiliate Investments | Worldwide Express Operations, LLC | Transportation Services | Common Equity (795,000units)    
Investment in number of shares or units 795,000 [4],[5],[6],[9] 795,000 [1],[2],[3]
Non-control/Non-affiliate Investments | Worldwide Express Operations, LLC | Transportation Services | Common Equity (752,380 units)    
Investment in number of shares or units 752,380 [4],[5],[6],[8],[9] 752,380 [1],[2],[3]
Non-control/Non-affiliate Investments | Zonkd, LLC | Component Manufacturing    
Interest earning on unfunded balance commitment   3.29%
Non-control/Non-affiliate Investments | Zonkd, LLC | Component Manufacturing | Common Equity (4,987 units)    
Investment in number of shares or units [4],[5],[6],[8],[9] 4,987  
Non-control/Non-affiliate Investments | BP Thrift Buyer, LLC (dba myUnique and Ecothrift) | Retail | Common Equity (1,000 units)    
Investment in number of shares or units [4],[5],[6],[9] 1,000  
Non-control/Non-affiliate Investments | Choice Technology Solutions, LLC (dba Choice Merchant Solutions, LLC) | Information Technology Services | Revolving Loan ($1,000 unfunded commitment)    
Unfunded commitment [4],[5],[6],[9],[13] $ 1,000,000  
[1] All debt investments are income producing, unless otherwise indicated. Equity investments are non-income producing unless otherwise noted.
[2] Equity ownership may be held in shares or units of companies related to the portfolio companies.
[3] See Note 3 to the consolidated financial statements for portfolio composition by geographic location.
[4] See Note 3 to the consolidated financial statements for portfolio composition by geographic location.
[5] All debt investments are income producing, unless otherwise indicated. Equity investments are non-income producing unless otherwise noted.
[6] Equity ownership may be held in shares or units of companies related to the portfolio companies.
[7] Investment in portfolio company that has sold its operations and is in the process of winding down.
[8] Investment is held by a taxable subsidiary of the Company.
[9] Investment pledged as collateral for the Credit Facility and, as a result, is not directly available to the creditors of the Company to satisfy any obligations of the Company other than the Company's obligations under the Credit Facility (see Note 6 to the consolidated financial statements).
[10] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” of and “Control” this portfolio company because it owns 25% or more of the portfolio company’s outstanding voting securities or it has the power to exercise control over the management or policies of such portfolio company. Transactions in which the issuer was both an Affiliated Person and a portfolio company that the Company is deemed to Control are detailed in Note 3 to the consolidated financial statements.
[11] Investment was on non-accrual status as of December 31, 2022.
[12] As defined in the 1940 Act, the Company is deemed to be an "Affiliated Person" of this portfolio company because it owns 5% or more of the portfolio company's outstanding voting securities or it has the power to exercise control over the management or policies of such portfolio company. Transactions in which the issuer was an Affiliated Person are detailed in Note 3 to the consolidated financial statements.
[13] The disclosed commitment represents the unfunded amount as of December 31, 2022. The Company is earning 0.50% interest on the unfunded balance of the commitment. The interest rate disclosed represents the rate that will be earned if the commitment is funded.
[14] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” of and “Control” this portfolio company because it owns 25% or more of the portfolio company’s outstanding voting securities or it has the power to exercise control over the management or policies of such portfolio company. Transactions in which the issuer was both an Affiliated Person and a portfolio company that the Company is deemed to Control are detailed in Note 3 to the consolidated financial statements.
[15] Warrants entitle the Company to purchase a predetermined number of shares or units of common equity, and are non-income producing. The purchase price and number of shares are subject to adjustment under certain conditions until the expiration date, if any.
[16] In addition to the interest earned based on the stated interest rate of this security, the Company is entitled to receive an additional cash interest amount of 1.25% on its “last out” tranche of the portfolio company’s senior term debt, which was previously syndicated into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.
[17] The portion of the investment not held by the Funds is pledged as collateral for the Credit Facility and, as a result, is not directly available to the creditors of the Company to satisfy any obligations of the Company other than the Company's obligations under the Credit Facility (see Note 6 to the consolidated financial statements).
[18] The disclosed commitment represents the unfunded amount as of December 31, 2022. The Company is earning 1.00% interest on the unfunded balance of the commitment. The interest rate disclosed represents the rate earned on the outstanding, funded balance of the commitment.
[19] In addition to the interest earned based on the stated interest rate of this security, the Company is entitled to receive an additional interest amount of 5.75% on its “last out” tranche of the portfolio company’s senior term debt, which was previously syndicated into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.