Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net loss	$ (1,062)	$ (523)
Other comprehensive (loss) gain:
Unrealized (loss) gain on investments	(3)	1
Other comprehensive (loss) gain	(3)	1
Comprehensive loss	$ (1,065)	$ (522)