Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2014

Stockholders' Equity

Summary of stock option activity

	Options		Weighted Average Exercise Price
Outstanding at December 31, 2013	1,820,784		$	4.46
Granted	876,500		5.37
Exercised	(50,304	)	1.18
Cancelled	(98,666	)	6.35
Outstanding at March 31, 2014	2,548,314		$	4.77
Granted	193,000		2.08
Exercised	—		—
Cancelled	(89,792	)	5.93
Outstanding at June 30, 2014	2,651,522		$	4.53

Schedule of recorded stock-based compensation expense in the condensed consolidated statements of comprehensive loss

	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands)	2014		2013		2014		2013
General and administrative	$	247	$	174	$	473	$	259
Research and development	280		199		545		295
	$	527	$	373	$	1,018	$	554