Note J - Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	Total		Level 1		Level 2		Level 3
	(in thousands)
Marketable equity securities	$	24,736	$	24,736		-		-

Fair Value, by Balance Sheet Grouping [Table Text Block]

	Carrying Value		Estimated Fair Value
	(in thousands)
Long-term debt	$	151,367	$	150,189