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Note 5 - Short-Term Investments (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

	March 31, 2013
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value

U.S. Government backed securities	$	3,392	$	2	$	(1	)	$	3,393
Certificate of Deposit (1)		1,982		-		-			1,982
Corporate Bonds		451		-		-			451
	$	5,825	$	2	$	(1	)	$	5,826

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

	Fair Value Measurements as of March 31, 2013
	Level 1		Level 2		Level 3		Balance as of March 31, 2013
Description
U.S. Government backed securities	$	-	$	3,393	$	-	$	3,393
Certificate of Deposit		-		1,982		-		1,982
Corporate Bonds		-		451		-		451
	$	-	$	5,826	$	-	$	5,826

- Definition

Tabular disclosure of assets, 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 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).

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