PORTFOLIO INVESTMENTS AND FAIR VALUE - Geographical Concentration of Investment Portfolio (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 941,679,195	$ 875,823,177
Fair value of investments	$ 886,338,148	$ 844,733,638
% of Total Investments at fair value	100.00%	100.00%
California
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 198,435,914	$ 167,833,384
Fair value of investments	$ 184,402,328	$ 165,340,017
% of Total Investments at fair value	20.79%	19.57%
Texas
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 201,784,259	$ 191,422,143
Fair value of investments	$ 177,626,821	$ 171,165,597
% of Total Investments at fair value	20.03%	20.26%
Florida
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 92,485,850	$ 60,593,839
Fair value of investments	$ 91,929,779	$ 59,421,775
% of Total Investments at fair value	10.36%	7.03%
Illinois
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 58,569,341	$ 64,421,998
Fair value of investments	$ 48,563,654	$ 53,218,615
% of Total Investments at fair value	5.48%	6.30%
Arizona
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 44,824,896	$ 43,129,283
Fair value of investments	$ 47,215,376	$ 44,277,625
% of Total Investments at fair value	5.33%	5.24%
Pennsylvania
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 48,566,621	$ 42,899,504
Fair value of investments	$ 48,739,983	$ 41,889,344
% of Total Investments at fair value	5.50%	4.96%
Ohio
Investment Holdings 1 [Line Items]
Investments, amortized cost		$ 34,223,452
Fair value of investments		$ 37,333,236
% of Total Investments at fair value		4.42%
Washington
Investment Holdings 1 [Line Items]
Investments, amortized cost		$ 28,978,375
Fair value of investments		$ 28,480,471
% of Total Investments at fair value		3.37%
New Jersey
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 11,207,366	$ 25,395,054
Fair value of investments	$ 11,664,087	$ 25,140,343
% of Total Investments at fair value	1.32%	2.98%
Wisconsin
Investment Holdings 1 [Line Items]
Investments, amortized cost		$ 27,533,402
Fair value of investments		$ 24,271,761
% of Total Investments at fair value		2.87%
South Carolina
Investment Holdings 1 [Line Items]
Investments, amortized cost		$ 19,089,373
Fair value of investments		$ 18,654,782
% of Total Investments at fair value		2.21%
District Of Columbia
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 13,903,415	$ 17,236,556
Fair value of investments	$ 14,946,569	$ 21,124,347
% of Total Investments at fair value	1.69%	2.50%
Georgia
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 10,180,988	$ 10,919,642
Fair value of investments	$ 18,885,059	$ 19,692,757
% of Total Investments at fair value	2.13%	2.33%
Minnesota
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 5,826,223	$ 16,972,086
Fair value of investments	$ 5,587,569	$ 15,952,072
% of Total Investments at fair value	0.63%	1.89%
Maryland
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 16,709,852	$ 16,824,077
Fair value of investments	$ 16,680,941	$ 16,576,554
% of Total Investments at fair value	1.88%	1.96%
Colorado
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 20,000,928	$ 15,204,934
Fair value of investments	$ 19,434,544	$ 14,295,470
% of Total Investments at fair value	2.19%	1.69%
Indiana
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 14,223,073	$ 14,346,082
Fair value of investments	$ 14,507,297	$ 14,245,432
% of Total Investments at fair value	1.64%	1.69%
Canada
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 8,708,104	$ 13,333,737
Fair value of investments	$ 8,766,484	$ 13,266,669
% of Total Investments at fair value	0.99%	1.57%
United Kingdom
Investment Holdings 1 [Line Items]
Investments, amortized cost		$ 20,530,087
Fair value of investments		$ 14,445,481
% of Total Investments at fair value		1.71%
Tennessee
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 9,385,167
Fair value of investments	$ 9,274,348
% of Total Investments at fair value	1.05%
North Carolina
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 13,228,185	$ 10,461,551
Fair value of investments	$ 13,872,575	$ 10,649,232
% of Total Investments at fair value	1.57%	1.26%
Massachusetts
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 10,167,365	$ 10,215,356
Fair value of investments	$ 10,539,949	$ 10,527,659
% of Total Investments at fair value	1.19%	1.25%
Idaho
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 8,874,557	$ 9,873,093
Fair value of investments	$ 8,945,557	$ 9,863,103
% of Total Investments at fair value	1.01%	1.17%
Missouri
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 9,006,651	$ 9,142,111
Fair value of investments	$ 8,998,049	$ 9,656,287
% of Total Investments at fair value	1.02%	1.14%
New York
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 5,458,393	$ 5,096,152
Fair value of investments	$ 5,654,248	$ 5,096,008
% of Total Investments at fair value	0.64%	0.61%
Michigan
Investment Holdings 1 [Line Items]
Investments, amortized cost	$ 10,680,111	$ 147,906
Fair value of investments	$ 10,680,110	$ 149,001
% of Total Investments at fair value	1.20%	0.02%