Statement of Comprehensive Income (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Statement of Other Comprehensive Income [Abstract]
Net income (loss)	$ (2,114)	$ (1,866)	$ 1,498	$ (2,410)
Other comprehensive income (loss), net of tax
Unrealized gain (loss) from available-for-sale securities	0	3		(1)
Foreign currency translation gain (loss)	(2,843)	4,337	(617)	8,218
Divestiture of subsidiary	0	1,907	(12,599)	1,907
Total comprehensive income (loss)	$ (4,957)	$ 4,381	$ (11,718)	$ 7,714