Note 1 - Basis of Consolidation and Presentation (Tables)

6 Months Ended

Jun. 30, 2013

Disclosure Text Block [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	Level 1		Level 2		Level 3		Total
	(In thousands)
As of June 30, 2013
Money Market Funds	$	5,704	$	--	$	--	$	5,704
Commercial Paper		4,308		--		--		4,308
Total	$	10,012	$	--	$	--	$	10,012
As of December 31, 2012
Money Market Funds	$	5,245	$	--	$	--	$	5,245
Commercial Paper		2,242		--		--		2,242
Total	$	7,487	$	--	$	--	$	7,487

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

	June 30, 2013		December 31, 2012
	(In thousands)
Total carrying amounts of long-term debt	$	11,606	$	12,436
Estimated fair value of long-term debt	$	11,376	$	12,490