Condensed Consolidated Statements Of Comprehensive Income (Loss) (Unaudited) (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	$ (4,817)	$ (1,951)	$ (8,746)	$ (5,928)
Other comprehensive income (loss):
Foreign currency translation adjustments	(91)	43	(68)	(220)
Change in net unrealized loss on marketable securities, net of tax	(13)	(12)	(17)	(15)
Total other comprehensive income (loss)	(104)	31	(85)	(235)
Total comprehensive loss	$ (4,921)	$ (1,920)	$ (8,831)	$ (6,163)