Note 1 - Basis of Consolidation and Presentation (Tables)

6 Months Ended

Jun. 30, 2012

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, 2012
Money Market Funds	$	4,309	$	--	$	--	$	4,309
Commercial Paper		6,841		--		--		6,841
Total	$	11,150	$	--	$	--	$	11,150
As of December 31, 2011
Money Market Funds	$	3,243	$	--	$	--	$	3,243
Commercial Paper		4,659		--		--		4,659
Total	$	7,902	$	--	$	--	$	7,902

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

	June 30, 2012		December 31, 2011
	(In thousands)
Total carrying amounts of long-term debt	$	13,550	$	14,486
Estimated fair value of long-term debt	$	13,679	$	14,498