Net Income (Loss) per Share Attributable to Common Stockholders

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Net Income (Loss) per Share Attributable to Common Stockholders

6. Net Income (Loss) per Share Attributable to Common Stockholders

The following table sets forth the computation of the unaudited basic and diluted net income (loss) per share attributable to common stockholders (in thousands, except share and per share data):

	Three Months Ended  September 30,					Nine Months Ended  September 30,
	2014		2013			2014			2013
Net income (loss)	$	74	$	(934	)	$	757		$	(2,295	)
Noncumulative dividends on convertible preferred stock		—		—			(757	)		—
Net income (loss) attributable to common stockholders, basic and diluted	$	74	$	(934	)	$	—		$	(2,295	)
Basic shares:
Weighted average common shares outstanding		18,374,277		1,156,446			7,476,642			1,100,885
Diluted shares:
Weighted average effect of dilutive stock options		758,940		—			—			—
		19,133,217		1,156,446			7,476,642			1,100,885
Net income (loss) per share attributable to common stockholders:
Basic	$	—	$	(0.81)		$	—		$	(2.08	)
Diluted	$	—	$	(0.81)		$	—		$	(2.08	)

The following outstanding shares of common stock equivalents were excluded from the computation of diluted net income (loss) per share attributable to common stockholders for the periods presented because including them would have been antidilutive:

	Three Months Ended  September 30,		Nine Months Ended  September  30,
	2014	2013	2014		2013
Convertible preferred stock	—	11,517,222		—		11,517,222
Options to purchase common stock	63,888	1,211,855		1,065,719		1,211,855
Warrants to purchase convertible preferred stock	—	574,953		—		574,953
Total	63,888	13,304,030		1,065,719		13,304,030