Note 1 - Basis of Consolidation and Presentation (Tables)

9 Months Ended

Sep. 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 September 30, 2013
Money Market Funds	$	7,578	$	-	$	-	$	7,578
Commercial Paper		10,658		-		-		10,658
Total	$	18,236	$	-	$	-	$	18,236
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]

	September 30, 2013		December 31, 2012
	(In thousands)
Total carrying amounts of long-term debt	$	10,876	$	12,436
Estimated fair value of long-term debt	$	10,738	$	12,490