Consolidated Statements of Comprehensive (Loss) Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Net loss	$ (32,244)	$ (25,428)
Foreign currency translation loss arising during the period	(74)	(110)
Less: reclassification of foreign currency translation loss to net loss	172
Net change in accumulated other comprehensive loss	98	(110)
Comprehensive loss	$ (32,146)	$ (25,538)