Consolidated Condensed Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement of Comprehensive Income [Abstract]
Net loss	$ (230)	$ (647)	$ (533)	$ (1,777)
Foreign currency translation adjustments	86	(503)	(1,294)	161
Unrealized loss on investments	(3,546)	(5,395)	(8,404)	(4,412)
Other comprehensive loss	(3,460)	(5,898)	(9,698)	(4,251)
Comprehensive loss	$ (3,690)	$ (6,545)	$ (10,231)	$ (6,028)