Note 3 - Marketable Investments (Tables)

12 Months Ended

Dec. 31, 2013

Investments, Debt and Equity Securities [Abstract]

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

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Loss		Fair Value
Available for Sale Securities
Corporate debt securities	$	3,119	$	-	$	-	$	3,119
	$	3,119	$	-	$	-	$	3,119