INCOME TAXES - Reconciliation to taxable income and distributions declared (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
INCOME TAXES
Net increase in net assets resulting from operations	$ 16,939,141	$ 16,391,747	$ 15,454,039	$ 15,454,039
Net change in unrealized appreciation	(399,146)	(880,477)	(2,578,242)
Income tax provision	177,451	123,774	355,778
Pre-tax expense (income), loss (gain) reported at Taxable Subsidiary, not consolidated for tax purposes	101,688	143,108	(597,456)
Book income and tax income differences, including debt origination, interest accrual, income from pass-through investments, dividends, realized gains (losses) and changes in estimates	1,779,677	289,671	392,220
Estimated taxable income	18,598,811	16,067,823	13,026,339
Taxable income earned in prior year and carried forward for distribution in current year	647,253	1,536,186	277,935
Taxable income earned prior to period end and carried forward	(2,732,254)	(647,253)	(1,536,186)
Total distributions accrued or paid to common shareholders	$ 16,513,810	$ 16,956,756	$ 11,768,088