Statement of Comprehensive Income (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Statement of Other Comprehensive Income [Abstract]
Net income (loss)	$ (2,327)	$ 2,081	$ (829)	$ (329)
Other comprehensive income (loss), net of tax
Unrealized gain (loss) from available-for-sale securities	0	(1)	0	(2)
Foreign currency translation gain (loss)	1,511	(5,999)	894	2,219
Divestiture of subsidiary	0	0	(12,599)	1,907
Total comprehensive income (loss)	$ (816)	$ (3,919)	$ (12,534)	$ 3,795