Consolidated Statements of Comprehensive (Loss) 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 loss	$ 1,745	$ 600	$ 823	$ (744)
Other comprehensive (loss) income, net of tax:
Unrealized gain (loss) on available-for-sale securities	1	(2)	(2)	(1)
Currency translation adjustment (loss) gain	327	(616)	336	285
Unrealized loss on derivatives	(15)	(224)	(57)	(503)
Other comprehensive (loss) income, net of tax	313	(842)	277	(219)
Total comprehensive (loss) income	$ 2,058	$ (242)	$ 1,100	$ (963)