Note 10 - Accumulated Other Comprehensive Income (Tables)

9 Months Ended

Sep. 30, 2013

Disclosure Text Block [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Auction Rate Securities Valuation Adjustments			Unrealized Gains on Available-for-Sale Securities			Foreign Currency Translation Adjustments		Tax		Total
Balance as of January 1, 2013	$	(490	)	$	40		$	4,625	$	-	$	4,175
Other comprehensive income before reclassifications		117			15			1,595		-		1,727
Amounts reclassified from accumulated other comprehensive income		-			(3	)		-		-		(3	)
Net current period other comprehensive income		117			12			1,595		-		1,724
Balance as of September 30, 2013	$	(373	)	$	52		$	6,220	$	-	$	5,899

Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

Details about Accumulated Other Comprehensive Income Components	Three months ended September 30, 2013		Nine months ended September 30, 2013		Affected Line Items in the Consolidated Statement of Operations
Unrealized gains on available-for-sale securities	$	1	$	3	Interest and other income (expense), net
		-		-	Income tax provision
Total amount reclassified, net of tax	$	1	$	3