Note 4 - Non-operating Income (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Other Nonoperating Income, by Component [Table Text Block]

	Year Ended December 31,
(in thousands)	2019		2018		2017
Equity in earnings of unconsolidated investments	$	9,744	$	1,020	$	6,932
Dividends and net realized gains on sale of securities		7,840		7,417		7,335
Interest income		7,188		7,183		6,172
Gain on acquisition of equity method investments		1,975		2,050		–
Total non-operating income	$	26,747	$	17,670	$	20,439