INCOME TAXES - Net Assets Resulting From Operations To Estimated RIC Taxable Income (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Net increase (decrease) in net assets from operations	$ 2,949	$ 9,458	$ 2,510	$ 12,560	$ (4,556)	$ 15,142	$ 14,917	$ 23,146
Net unrealized depreciation (appreciation) on investments							13,989	(4,306)
Income/gain (expense/loss) recognized for tax on pass-through entities							10	1,558
(Gain) loss recognized on dispositions							(1,473)	329
Capital loss carryover							14,454	308
Net operating income - wholly-owned subsidiary							1,071	(9,186)
Dividend income from wholly-owned subsidiary							1,068	0
Non-deductible tax expense							466	191
Loss on extinguishment of debt							0	12,950
Non-deductible compensation							2,443	2,688
Compensation related book/tax differences							(1,471)	2,542
Other book/tax differences							1,839	3,518
Estimated distributable income before deductions for distributions							47,313	$ 33,738
Capital loss carryover	$ 31,900						$ 31,900