Note 4 - Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2012

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

	Fair Value Measurements at the End of the Reporting Period
	Level 1		Level 2		Level 3		Total		Total Losses
Items measured at fair value on a recurring basis at December 31, 2012
Cash and cash equivalents
Money market mutual funds	$	-	$	1,528	$	-	$	1,528
Short-term investments
Government bonds		-		1,635		-		1,635
Corporate bonds		-		500		-		500
Agency bonds		-		6,636		-		6,636
Long-term investments
Available-for-sale securities		943		-		-		943
Total recurring fair value measurements	$	943	$	10,299	$	-	$	11,242
Items measured at fair value on a nonrecurring basis at December 31, 2012
Long-lived assets held and used related to the exit activities
Property and equipment (note 3)	$	-	$	-	$	-	$	-	$	(462	)
Intangible assets (note 3)		-		-		-		-		(1,198	)
Other assets (note 3)		-		-		-		-		(660	)
Total nonrecurring fair value measurements	$	-	$	-	$	-	$	-	$	(2,320	)
Items measured at fair value on a recurring basis at December 31, 2011
Cash and cash equivalents
Money market mutual funds	$	-	$	1,398	$	-	$	1,398
Short-term investments
Government bonds		-		1,007		-		1,007
Corporate bonds		-		5,666		-		5,666
Agency bonds		-		2,176		-		2,176
Long-term investments
Available-for-sale securities		791		-		-		791
Total recurring fair value measurements	$	791	$	10,247	$	-	$	11,038
Items measured at fair value on a nonrecurring basis at December 31, 2011
Long-term investments
Cost method securities (note 9)	$	-	$	78	$	-	$	78	$	(422	)
Total nonrecurring fair value measurements	$	-	$	78	$	-	$	78	$	(422	)