Note 1 - Basis Of Presentation (Tables)

3 Months Ended

Mar. 31, 2013

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

	Foreign Currency Translation Adjustments			Unrealized Gain (Loss) on Investments			Accumulated Other Comprehensive Income
Balance as of December 31, 2012	$	1,055		$	12,231		$	13,286
Current period other comprehensive income (loss)		(1,381	)		(4,858	)		(6,239	)
Balance as of March 31, 2013	$	(326	)	$	7,373		$	7,047