FINANCIAL HIGHLIGHTS (Details)	3 Months Ended
	Mar. 31, 2025 USD ($) $ / shares shares	Mar. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2024 USD ($)
Per Share Data:
Net asset value at beginning of period	$ 13.46	$ 13.26
Net investment income	0.35	0.42
Change in unrealized appreciation (depreciation) on investments	0.04	0.98
Net realized loss	(0.21)	(0.85)
Benefit (provision) for taxes on net unrealized depreciation (appreciation) on investments		(0.01)
Total from operations	0.18	0.54
Sales load	(0.01)
Offering costs	(0.01)
Net investment income	(0.4)	(0.4)
Accretive effect of stock offerings (issuing shares above net asset value per share)	0.01
Other	0.02	0.01
Net asset value at end of period	13.25	13.41
Per share market value at end of period	$ 14	$ 13.08
Total return based on market value	4.60%	3.72%
Weighted average common shares, Basic (in shares) | shares	27,602,612	24,125,642
Weighted average common shares, Diluted (in shares) | shares	27,602,612	24,125,642
Ratio/Supplemental Data:
Net assets at end of period | $	$ 372,766,182	$ 323,440,404	$ 369,921,940
Weighted average net assets | $	$ 371,525,216	$ 319,978,256
Annualized ratio of gross operating expenses to net assets	17.91	20.07
Annualized ratio of net operating expenses to net assets	16.55	19.82
Annualized ratio of interest expense and other fees to net assets	9.02	9.74
Annualized ratio of net investment income before fee waiver to net assets	9.33	12.57
Annualized ratio of net investment income to net assets	10.69%	12.83%
Portfolio turnover	1.54	13.07
Notes payable | $	$ 100,000,000	$ 100,000,000
Credit Facility payable | $	221,813,920	184,650,119
SBA-guaranteed debentures | $	$ 308,750,000	$ 325,000,000
Asset coverage ratio	2.16	2.14
Income tax benefit (provision) on net unrealized depreciation (appreciation) in taxable subsidiaries | $	$ 0	$ (192,607)
impact of the tax benefit (provision) on net unrealized depreciation (appreciation) to weighted average net assets	0.00%	(0.0024%)