PORTFOLIO INVESTMENTS AND FAIR VALUE - Industry Concentration of Investment Portfolio (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 997,831,664	$ 961,788,706
Fair value of investments	$ 991,103,777	$ 953,497,688
% of Total Investments at fair value	100.00%	100.00%
Services: Business
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 243,646,441	$ 219,665,133
Fair value of investments	$ 258,489,176	$ 234,908,112
% of Total Investments at fair value	26.08%	24.64%
High Tech Industries
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 91,028,612	$ 91,135,577
Fair value of investments	$ 93,430,034	$ 93,468,792
% of Total Investments at fair value	9.43%	9.81%
Healthcare & Pharmaceuticals
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 85,729,558	$ 85,300,317
Fair value of investments	$ 84,959,811	$ 85,478,418
% of Total Investments at fair value	8.57%	8.97%
Media: Advertising, Printing & Publishing
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 79,111,134	$ 71,318,416
Fair value of investments	$ 79,724,472	$ 72,291,584
% of Total Investments at fair value	8.04%	7.58%
Beverage & Food
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 63,707,729	$ 64,052,951
Fair value of investments	$ 68,723,968	$ 68,902,142
% of Total Investments at fair value	6.93%	7.23%
Consumer Goods: Non-Durable
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 66,582,041	$ 67,123,135
Fair value of investments	$ 56,310,657	$ 54,473,282
% of Total Investments at fair value	5.68%	5.71%
Capital Equipment
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 50,126,287	$ 41,322,214
Fair value of investments	$ 52,518,594	$ 43,647,466
% of Total Investments at fair value	5.30%	4.58%
Services: Consumer
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 49,269,639	$ 49,388,222
Fair value of investments	$ 45,982,572	$ 46,066,301
% of Total Investments at fair value	4.64%	4.83%
Chemicals, Plastics, & Rubber
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 38,127,354	$ 36,693,101
Fair value of investments	$ 37,992,254	$ 36,907,602
% of Total Investments at fair value	3.83%	3.87%
Construction & Building
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 31,934,161	$ 32,374,992
Fair value of investments	$ 32,454,388	$ 32,979,859
% of Total Investments at fair value	3.27%	3.46%
Consumer Goods: Durable
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 34,792,596	$ 43,393,413
Fair value of investments	$ 32,395,267	$ 42,094,390
% of Total Investments at fair value	3.27%	4.41%
Aerospace & Defense
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 27,130,502	$ 26,014,106
Fair value of investments	$ 22,847,756	$ 21,624,091
% of Total Investments at fair value	2.31%	2.27%
Environmental Industries
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 19,061,096	$ 18,903,681
Fair value of investments	$ 20,695,413	$ 18,282,056
% of Total Investments at fair value	2.09%	1.92%
Transportation & Logistics
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 17,991,080	$ 17,244,131
Fair value of investments	$ 18,241,796	$ 17,532,488
% of Total Investments at fair value	1.84%	1.84%
Retail
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 14,787,280	$ 14,799,085
Fair value of investments	$ 14,778,304	$ 14,723,620
% of Total Investments at fair value	1.49%	1.54%
Media: Broadcasting & Subscription
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 12,142,342	$ 12,170,577
Fair value of investments	$ 14,411,416	$ 14,314,711
% of Total Investments at fair value	1.45%	1.50%
Energy: Oil & Gas
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 11,343,396	$ 11,353,959
Fair value of investments	$ 10,559,460	$ 10,728,031
% of Total Investments at fair value	1.07%	1.13%
Containers, Packaging, & Glass
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 20,666,618	$ 18,007,571
Fair value of investments	$ 10,294,415	$ 12,911,794
% of Total Investments at fair value	1.04%	1.35%
Hotel, Gaming, & Leisure
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 7,137,590	$ 7,113,661
Fair value of investments	$ 8,285,168	$ 8,142,050
% of Total Investments at fair value	0.84%	0.85%
FIRE: Real Estate
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 17,934,808	$ 17,934,808
Fair value of investments	$ 7,707,712	$ 7,652,436
% of Total Investments at fair value	0.78%	0.80%
Media: Diversified & Production
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 5,804,592	$ 5,822,637
Fair value of investments	$ 5,916,959	$ 5,934,853
% of Total Investments at fair value	0.60%	0.62%
Finance
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 119,281	$ 119,281
Fair value of investments	$ 5,370,188	$ 5,092,459
% of Total Investments at fair value	0.54%	0.53%
Wholesale
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 5,060,939
Fair value of investments	$ 5,060,939
% of Total Investments at fair value	0.51%
Education
PORTFOLIO INVESTMENTS AND FAIR VALUE
Investments, amortized cost	$ 4,596,588	$ 10,537,738
Fair value of investments	$ 3,953,058	$ 5,341,151
% of Total Investments at fair value	0.40%	0.56%