Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statements of Comprehensive Income (Loss)
Net income (loss)	$ 2,005	$ 3,202	$ 2,923	$ (12,342)
Other comprehensive (loss) income:
Unrealized net (loss) gain on marketable securities	(86)		3	1
Other comprehensive (loss) income:	(86)		3	1
Comprehensive income (loss)	$ 1,919	$ 3,202	$ 2,926	$ (12,341)