Consolidated Statement of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Investment Income:
Total investment income	$ 60,987	$ 45,183	$ 22,302
Expenses:
Management fees (see note 3)	4,288	3,779	2,654
Incentive fees (see note 3)	3,464	3,601	3,213
Administration fees (see note 3)	411	391	224
Interest and other credit facility expenses (see note 5)	23,132	16,287	6,167
Other general and administrative expenses	1,124	875	757
Total expenses	32,419	24,933	13,015
Net investment income	28,568	20,250	9,287
Realized and unrealized gain on investments and cash equivalents:
Realized Investment Gains (Losses)	80	0	12
Unrealized Gain (Loss) on Investments	(9,020)	156	2,632
Net realized and unrealized gain (loss) on investments and cash equivalents	(8,940)	156	2,644
Net Increase in Unitholders' Capital Resulting From Operations	$ 19,628	$ 20,406	$ 11,931
Net Income Per Unit	$ 0.8	$ 1.12	$ 1.01
Companies less than 5% owned [Member]
Investment Income:
Interest income from non-controlled/non-affiliated investments	$ 60,150	$ 44,812	$ 22,219
Other income from non-controlled/non-affiliated investments	666	371	83
Realized and unrealized gain on investments and cash equivalents:
Realized Investment Gains (Losses)	80	0	12
Unrealized Gain (Loss) on Investments	(8,565)	156	2,632
Companies 5% to 25% owned [Member]
Investment Income:
Interest income from non-controlled/non-affiliated investments	148	0	0
Other income from non-controlled/non-affiliated investments	23	0	0
Realized and unrealized gain on investments and cash equivalents:
Unrealized Gain (Loss) on Investments	$ (455)	$ 0	$ 0