Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net (loss) income	$ (10,465)	$ 2,893	$ (2,479)
Other comprehensive income, net:
Unrealized gain on investments, net of tax	18	5	0
Comprehensive (loss) income	$ (10,447)	$ 2,898	$ (2,479)