Note 1 - Basis of Consolidation and Presentation (Tables)

3 Months Ended

Mar. 31, 2013

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 March 31, 2013
Money Market Funds	$	5,835	$	--	$	--	$	5,835
Commercial Paper		3,052		--		--		3,052
Total	$	8,887	$	--	$	--	$	8,887
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]

	March 31, 2013		December 31, 2012
	(In thousands)
Total carrying amounts of long-term debt	$	12,110	$	12,436
Estimated fair value of long-term debt	$	12,053	$	12,490