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Note 1 - Basis of Consolidation and Presentation (Tables)

3 Months Ended

Mar. 31, 2015

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, 2015
Money Market Funds	$	8,140	$	--	$	--	$	8,140
Commercial Paper		27,921		--		--		27,921
Total	$	36,061	$	--	$	--	$	36,061

As of December 31, 2014
Money Market Funds	$	9,442	$	--	$	--	$	9,442
Commercial Paper		29,686		--		--		29,686
Total	$	39,128	$	--	$	--	$	39,128

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

	March 31, 2015		December 31, 2014
	(In thousands)

Total carrying amounts of long-term debt	$	7,492	$	8,068
Estimated fair value of long-term debt	$	7,465	$	7,997

- Definition

Tabular disclosure of liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring and/or nonrecurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.

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