FINANCIAL HIGHLIGHTS (Details)	3 Months Ended
	Mar. 31, 2024 USD ($) $ / shares shares	Mar. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2023 USD ($)
Per Share Data:
Net asset value at beginning of period	$ 13.26	$ 14.02
Net investment income	0.42	0.46
Change in unrealized appreciation (depreciation) on investments	0.98	(0.21)
Net realized loss	(0.85)
Provision for taxes on net unrealized appreciation on investments	(0.01)	(0.01)
Total from operations	0.54	0.24
Sales load		(0.01)
Net investment income	(0.40)	(0.40)
Accretive effect of stock offerings (issuing shares above net asset value per share)		0.01
Other	0.01	0.01
Net asset value at end of period	13.41	13.87
Per share market value at end of period	$ 13.08	$ 14.09
Total return based on market value	3.70%	8.20%
Weighted average common shares, Basic (in shares) | shares	24,125,642	19,779,988
Weighted average common shares, Diluted (in shares) | shares	24,125,642	19,779,988
Ratio/Supplemental Data:
Weighted average net assets | $	$ 319,978,256	$ 277,747,062
Annualized ratio of gross operating expenses to net assets	20.07	21.94
Annualized ratio of net operating expenses to net assets	19.82	21.94
Annualized ratio of interest expense and other fees to net assets	9.74	11.52
Annualized ratio of net investment income before fee waiver to net assets	12.57	13.24
Annualized ratio of net investment income to net assets	12.83%	13.24%
Portfolio turnover	13.07	2.77
Notes payable | $	$ 99,107,786	$ 100,000,000	$ 98,996,412
Credit Facility payable | $	184,650,119	198,277,831
SBA-guaranteed debentures | $	$ 325,000,000	$ 313,600,000
Asset coverage ratio	2.14	1.94
Income tax provision on net unrealized appreciation in taxable subsidiaries | $	$ (192,607)	$ (78,760)
Percentage impact of tax on net unrealized appreciation to net assets	(0.0024%)	(0.0012%)