Note 2 - Ownership Interests and Advances (Tables)

6 Months Ended

Jun. 30, 2022

Notes Tables

Schedule of Investments in and Advances to Affiliates, Schedule of Investments [Table Text Block]

	June 30, 2022		December 31, 2021
	(Unaudited - In thousands)
Equity Method:
Companies	$	18,738	$	21,091
Private equity funds		117		117
		18,855		21,208
Other Method:
Companies, fair value		2,407		4,549
Companies, fair value measurement alternative		687		514
Private equity funds, fair value measurement alternative		250		250
		3,344		5,313
Advances to companies		3,400		—
	$	25,599	$	26,521

Schedule of Other Ownership Interests [Table Text Block]

Company Name	Safeguard Primary Ownership as of June 30, 2022	Accounting Method
Aktana, Inc.	13.4%	Equity
Clutch Holdings, Inc.	41.7%	Equity
InfoBionic, Inc.	25.2%	Equity
Lumesis, Inc.	43.2%	Equity
meQuilibrium	31.5%	Equity
Moxe Health Corporation	19.4%	Equity
Prognos Health Inc.	28.5%	Equity
Syapse, Inc.	11.0%	Equity
Trice Medical, Inc.	12.6%	Equity

Equity Method Investments [Table Text Block]

	Three Months Ended June 30,						Six Months Ended June 30,
	2022			2021			2022			2021
	(Unaudited - In thousands)
Results of Operations:
Revenue	$	36,479		$	30,482		$	75,290		$	70,650
Gross profit	$	22,653		$	17,873		$	47,573		$	46,101
Net loss	$	(34,325	)	$	(28,681	)	$	(65,187	)	$	(51,702	)