PORTFOLIO INVESTMENTS AND FAIR VALUE - Industry concentration of investment portfolio (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Investment Holdings 1 [Line Items]
Cost	$ 187,087,867	$ 158,022,677
Fair Value	$ 188,323,515	$ 157,504,755
% of Total Investments	100.00%	100.00%
Services: Business
Investment Holdings 1 [Line Items]
Cost	$ 48,425,646	$ 35,188,973
Fair Value	$ 48,783,021	$ 35,046,444
% of Total Investments	25.91%	22.25%
Capital Equipment
Investment Holdings 1 [Line Items]
Cost	$ 24,490,108	$ 20,713,352
Fair Value	$ 24,963,290	$ 20,768,686
% of Total Investments	13.26%	13.19%
Consumer Goods: Non-Durable
Investment Holdings 1 [Line Items]
Cost	$ 17,838,532	$ 18,553,695
Fair Value	$ 18,230,376	$ 18,514,476
% of Total Investments	9.68%	11.75%
Consumer Goods: Durable
Investment Holdings 1 [Line Items]
Cost	$ 13,465,092	$ 13,741,132
Fair Value	$ 13,434,217	$ 13,680,426
% of Total Investments	7.13%	8.69%
Healthcare & Pharmaceuticals
Investment Holdings 1 [Line Items]
Cost	$ 12,111,614	$ 9,866,275
Fair Value	$ 12,193,067	$ 9,866,275
% of Total Investments	6.47%	6.26%
Automotive
Investment Holdings 1 [Line Items]
Cost		$ 9,492,362
Fair Value		$ 9,607,593
% of Total Investments		6.10%
Media: Diversified & Production
Investment Holdings 1 [Line Items]
Cost	$ 11,343,545	$ 9,977,695
Fair Value	$ 11,405,472	$ 9,971,437
% of Total Investments	6.07%	6.33%
Chemicals, Plastics, & Rubber
Investment Holdings 1 [Line Items]
Cost	$ 8,603,552	$ 7,490,771
Fair Value	$ 8,414,083	$ 7,351,701
% of Total Investments	4.47%	4.67%
High Tech Industries
Investment Holdings 1 [Line Items]
Cost	$ 13,553,739	$ 8,455,439
Fair Value	$ 13,567,566	$ 8,399,480
% of Total Investments	7.20%	5.33%
Construction & Building
Investment Holdings 1 [Line Items]
Cost	$ 7,594,506	$ 7,348,309
Fair Value	$ 7,557,771	$ 7,195,856
% of Total Investments	4.01%	4.57%
Media: Broadcasting & Subscription
Investment Holdings 1 [Line Items]
Cost	$ 4,613,200
Fair Value	$ 4,673,753
% of Total Investments	2.48%
Retail
Investment Holdings 1 [Line Items]
Cost	$ 6,210,160	$ 5,327,376
Fair Value	$ 6,193,305	$ 5,291,147
% of Total Investments	3.29%	3.36%
Media Broadcasting and Subscription [Member]
Investment Holdings 1 [Line Items]
Cost		$ 4,614,114
Fair Value		$ 4,614,114
% of Total Investments		2.93%
Beverage, Food, & Tobacco
Investment Holdings 1 [Line Items]
Cost	$ 5,126,448
Fair Value	$ 5,165,989
% of Total Investments	2.74%
Software
Investment Holdings 1 [Line Items]
Cost	$ 4,063,118	$ 4,165,162
Fair Value	$ 4,109,361	$ 4,140,506
% of Total Investments	2.18%	2.63%
Services: Consumer
Investment Holdings 1 [Line Items]
Cost	$ 9,648,607	$ 3,088,022
Fair Value	$ 9,632,244	$ 3,056,614
% of Total Investments	5.11%	1.94%