Note D - Marketable Equity Securities (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Marketable Securities [Table Text Block]

	March 31, 2018		December 31, 2017
	(in thousands)
Fair market value	$	26,104	$	26,664
Cost		19,536		16,640
Unrealized gain	$	6,568	$	10,024

Unrealized Gain (Loss) on Investments [Table Text Block]

	March 31, 2018		December 31, 2017
	(in thousands)
Gross unrealized gains	$	7,651	$	10,150
Gross unrealized losses		1,083		126
Net unrealized gains	$	6,568	$	10,024

Schedule of Realized Gain (Loss) [Table Text Block]

	Three Months Ended
	March 31, 2018		March 31, 2017
	(in thousands)
Realized gain
Sale proceeds	$	-	$	2,367
Cost of securities sold		-		585
Realized gain	$	-	$	1,782
Realized gain, net of taxes	$	-	$	1,089