Note 5 - Transactions With Affiliated Companies (Tables)

6 Months Ended

Jun. 30, 2024

Notes Tables

Investments in and Advances to Affiliates [Table Text Block]

					Three months ended June 30, 2024
	Fair value at							Transfers				Net				Fair value at
Portfolio	March 31,				Principal			in/(out) at		Discount		unrealized		Net realized		June 30,
Company	2024		Purchases		Payments			fair value		accretion		gain/(loss)		gain/(loss)		2024
	(In thousands)
Aulea Medical, Inc.	$	—	$	—	$	(40	)	$	—	$	—	$	—	$	40	$	—
Evelo Biosciences, Inc.		2,790		—		—			—		—		713		—		3,503
		4,207		92		—			—		—		1,041		—		5,340
		1,674		—		—			—		—		427		—		2,101
		1,674		—		—			—		—		427		—		2,101
		1,116		—		—			—		—		285		—		1,401
		1,116		—		—			—		—		285		—		1,401
Total non-controlled affiliates	$	12,577	$	92	$	(40	)	$	—	$	—	$	3,178	$	40	$	15,847

					Three months ended June 30, 2023
	Fair value at						Transfers				Net				Fair value at
Portfolio	March 31,						in/(out) at		Discount		unrealized		Net realized		June 30,
Company	2023		Purchases		Sales		fair value		Accretion		gain/(loss)		gain/(loss)		2023
	(In thousands)
Cadrenal Therapeutics, Inc.		846		—		—		—		—		60		—		906
Total non-controlled affiliates	$	846	$	—	$	—	$	—	$	—	$	60	$	—	$	906

					Six months ended June 30, 2024
	Fair value at							Transfers				Net					Fair value at
Portfolio	December 31,				Principal			in/(out) at		Discount		unrealized			Net realized		June 30,
Company	2023		Purchases		Payments			fair value		accretion		gain/(loss)			gain/(loss)		2024
	(In thousands)
Aulea Medical, Inc.	$	—	$	3	$	(40	)	$	—	$	—	$	—		$	37	$	—
Evelo Biosciences, Inc.		222		—		—			—		—		3,281			—		3,503
		336		104		—			—		—		4,900			—		5,340
		133		—		—			—		—		1,968			—		2,101
		133		—		—			—		—		1,968			—		2,101
		88		—		—			—		—		1,313			—		1,401
		88		—		—			—		—		1,313			—		1,401
		132		—		—			—		—		(132	)		—		—
Total non-controlled affiliates	$	1,132	$	107	$	(40	)	$	—	$	—	$	14,611		$	37	$	15,847

					Six months ended June 30, 2023
	Fair value at						Transfers				Net				Fair value at
Portfolio	December 31,						in/(out) at		Discount		unrealized		Net realized		June 30,
Company	2022		Purchases		Sales		fair value		Accretion		gain/(loss)		gain/(loss)		2023
	(In thousands)
Cadrenal Therapeutics, Inc.		—		—		—		—		—		906		—		906
Total non-controlled affiliates	$	—	$	—	$	—	$	—	$	—	$	906	$	—	$	906

					Three months ended June 30, 2024
	Fair value at								Transfers				Net					Fair value at
Portfolio	March 31,				Principal				in/(out) at		Discount		unrealized			Net realized		June 30,		Interest
Company	2024		Purchases		Payments		PIK		fair value		accretion		gain/(loss)			gain/(loss)		2024		income
	(In thousands)
Better Place Forests Co.	$	3,455	$	—	$	—	$	115	$	—	$	2	$	(406	)	$	—	$	3,166	$	120
		1,688		—		—		57		—		1		(197	)		—		1,549		62
		—		500		—		5		—		—		(85	)		—		420		5
		—		500		—		1		—		—		(86	)		—		415		1
		2,656		500		—		—		—		—		(3,156	)		—		—		—
HIMV LLC		5,845		—		—		—		463		—		(472	)		—		5,836		—
Total controlled affiliates	$	13,644	$	1,500	$	—	$	178	$	463	$	3	$	(4,402	)	$	—	$	11,386	$	188

					Six months ended June 30, 2024
	Fair value at									Transfers				Net					Fair value at
Portfolio	December 31,				Principal					in/(out) at		Discount		unrealized			Net realized		June 30,		Interest
Company	2023		Purchases		Payments			PIK		fair value		accretion		gain/(loss)			gain/(loss)		2024		income
	(In thousands)
Better Place Forests Co.	$	3,339	$	—	$	—		$	226	$	—	$	4	$	(403	)	$	—	$	3,166	$	236
		1,630		—		—			112		—		3		(196	)		—		1,549		123
		—		500		—			5		—		—		(85	)				420		5
		—		500		—			1		—		—		(86	)				415		1
		3,024		1,250		—			—		—		—		(4,274	)		—		—		—
HIMV LLC		6,230		227		(547	)		—		463		—		(537	)		—		5,836		—
Total controlled affiliates	$	14,223	$	2,477	$	(547	)	$	344	$	463	$	7	$	(5,581	)	$	—	$	11,386	$	365