Consolidated Condensed Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Net loss	$ (299)	$ (230)	$ (1,093)	$ (533)
Foreign currency translation adjustments	422	86	515	(1,294)
Unrealized gain (loss) on investments	1,495	(3,546)	(3,057)	(8,404)
Other comprehensive income (loss)	1,917	(3,460)	(2,542)	(9,698)
Comprehensive income (loss)	$ 1,618	$ (3,690)	$ (3,635)	$ (10,231)