Note 10 - Accumulated Other Comprehensive Income (Tables)

6 Months Ended

Jun. 30, 2013

Disclosure Text Block [Abstract]

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

	Auction Rate Securities Valuation Adjustments			Unrealized Gain 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 (loss) before reclassifications		(32	)		(20	)		1,164		-		1,112
Amounts reclassified from accumulated other comprehensive income		-			(2	)		-		-		(2	)
Net current period other comprehensive income (loss)		(32	)		(22	)		1,164		-		1,110
Balance as of June 30, 2013	$	(522	)	$	18		$	5,789	$	-	$	5,285

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

Details about Accumulated Other Comprehensive Income Components	Three months ended June 30, 2013		Six months ended June 30, 2013		Affected Line Items in the Consolidated Statement of Operations
Unrealized gains on available-for-sale securities	$	1	$	2	Interest and other income, net
		-		-	Income tax provision
		1		2	Total, net of tax
Total reclassifications for the period	$	1	$	2	Total, net of tax