Note J - Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

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

	Total		Level 1		Level 2		Level 3
	(in thousands)
Marketable equity securities	$	27,377	$	27,377		-		-

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

	Carrying Value		Estimated Fair Value
	(in thousands)
Long-term debt	$	89,335	$	89,394