Note 2 - Ownership Interests In and Advances (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

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

	March 31, 2020		December 31, 2019
	(Unaudited - In thousands)
Equity Method:
Companies	$	29,289	$	34,271
Private equity funds		271		271
		29,560		34,542
Other Method:
Companies		23,464		27,031
Private equity funds		453		453
		23,917		27,484
Advances to companies		13,321		15,103
	$	66,798	$	77,129

Equity Method Investments [Table Text Block]

	Three Months Ended March 31,
	2020			2019
	(Unaudited - In thousands)
Results of Operations:
Revenue	$	47,414		$	43,868
Gross profit	$	29,506		$	24,589
Net loss	$	(14,604	)	$	(33,616	)