PORTFOLIO INVESTMENTS AND FAIR VALUE - Industry Concentration of Investment Portfolio (Details) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 909,319,888	$ 902,143,550
Fair value of investments	$ 908,718,893	$ 874,460,683
% of Total Investments at fair value	100.00%	100.00%
Services: Business
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 203,746,598	$ 198,018,290
Fair value of investments	$ 220,739,114	$ 207,963,749
% of Total Investments at fair value	24.29%	23.78%
Healthcare & Pharmaceuticals
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 102,834,705	$ 100,724,952
Fair value of investments	$ 103,257,729	$ 102,915,887
% of Total Investments at fair value	11.35%	11.77%
High Tech Industries
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 90,124,134	$ 90,795,799
Fair value of investments	$ 92,692,874	$ 91,992,012
% of Total Investments at fair value	10.20%	10.52%
Media: Advertising, Printing & Publishing
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 72,026,720	$ 57,640,321
Fair value of investments	$ 73,244,721	$ 58,741,061
% of Total Investments at fair value	8.06%	6.72%
Capital Equipment
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 52,781,855	$ 32,517,673
Fair value of investments	$ 54,812,384	$ 33,879,801
% of Total Investments at fair value	6.03%	3.87%
Beverage & Food
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 49,733,842
Fair value of investments	$ 54,032,506
% of Total Investments at fair value	5.95%
Consumer Goods: Non-Durable
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 63,359,237	$ 63,145,301
Fair value of investments	$ 50,528,301	$ 52,938,611
% of Total Investments at fair value	5.56%	6.05%
Beverage, Food, & Tobacco
Investment Holdings 1 [Line Items]
Investments, amortized cost		$ 42,554,582
Fair value of investments		$ 45,074,817
% of Total Investments at fair value		5.15%
Consumer Goods: Durable
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 43,526,506	$ 49,046,730
Fair value of investments	$ 43,103,971	$ 43,725,324
% of Total Investments at fair value	4.74%	5.00%
Services: Consumer
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 28,190,609	$ 33,976,976
Fair value of investments	$ 25,138,889	$ 33,260,111
% of Total Investments at fair value	2.77%	3.80%
Construction & Building
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 21,506,389	$ 30,319,119
Fair value of investments	$ 21,597,664	$ 30,486,411
% of Total Investments at fair value	2.38%	3.49%
Aerospace & Defense
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 26,531,998	$ 46,745,104
Fair value of investments	$ 23,004,604	$ 24,541,921
% of Total Investments at fair value	2.53%	2.81%
Environmental Industries
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 18,886,220	$ 24,219,811
Fair value of investments	$ 18,153,686	$ 22,997,844
% of Total Investments at fair value	2.00%	2.63%
Media: Broadcasting & Subscription
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 12,198,848	$ 17,952,103
Fair value of investments	$ 13,842,608	$ 20,760,920
% of Total Investments at fair value	1.52%	2.37%
Transportation & Logistics
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 17,244,131	$ 17,235,150
Fair value of investments	$ 17,423,487	$ 17,661,859
% of Total Investments at fair value	1.92%	2.02%
Chemicals, Plastics, & Rubber
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 22,806,903	$ 18,338,366
Fair value of investments	$ 22,915,236	$ 17,569,176
% of Total Investments at fair value	2.52%	2.01%
Metals & Mining
Investment Holdings 1 [Line Items]
Investments, amortized cost		$ 16,580,562
Fair value of investments		$ 16,625,000
% of Total Investments at fair value		1.90%
Containers, Packaging, & Glass
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 17,387,950	$ 17,432,252
Fair value of investments	$ 16,107,745	$ 15,539,555
% of Total Investments at fair value	1.77%	1.78%
Retail
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 14,829,342
Fair value of investments	$ 14,686,796
% of Total Investments at fair value	1.62%
Utilities: Oil & Gas
Investment Holdings 1 [Line Items]
Investments, amortized cost		$ 9,943,041
Fair value of investments		$ 10,000,000
% of Total Investments at fair value		1.14%
Education
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 10,507,778	$ 10,251,179
Fair value of investments	$ 7,421,288	$ 8,367,469
% of Total Investments at fair value	0.82%	0.96%
FIRE: Real Estate
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 17,934,808	$ 17,285,138
Fair value of investments	$ 7,749,169	$ 6,175,994
% of Total Investments at fair value	0.85%	0.71%
Media: Diversified & Production
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 5,843,856	$ 5,662,174
Fair value of investments	$ 5,967,076	$ 5,763,247
% of Total Investments at fair value	0.66%	0.66%
Finance
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 119,281	$ 569,039
Fair value of investments	$ 4,784,523	$ 5,736,868
% of Total Investments at fair value	0.53%	0.66%
Hotel, Gaming, & Leisure
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 5,833,293
Fair value of investments	$ 6,831,615	$ 890,968
% of Total Investments at fair value	0.75%	0.10%
Energy: Oil & Gas
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 11,364,885	$ 1,189,888
Fair value of investments	$ 10,682,907	$ 852,078
% of Total Investments at fair value	1.18%	0.10%