Note 2 - Ownership Interests and Advances (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

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

	September 30, 2021		December 31, 2020
	(Unaudited - In thousands)
Equity Method:
Companies	$	23,828	$	27,550
Private equity funds		117		271
		23,945		27,821
Other Method:
Companies, fair value		10,792		—
Companies, fair value measurement alternative		514		19,683
Private equity funds, fair value measurement alternative		258		268
		11,564		19,951
Advances to companies		775		2,626
	$	36,284	$	50,398

Equity Method Investments [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021			2020			2021			2020
	(Unaudited - In thousands)
Results of Operations:
Revenue	$	35,447		$	39,388		$	106,097		$	119,270
Gross profit	$	23,023		$	23,244		$	69,124		$	73,395
Net loss	$	(25,390	)	$	(15,650	)	$	(77,092	)	$	(56,684	)