Net Income Per Share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The computations for basic and diluted net income per share are as follows:

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2014		2013			2014		2013
	(in thousands)
Numerator:
Net income	$	3,208	$	1,309		$	4,474	$	1,579
Net income attributable to participating securities	—		(2		)	—		(2		)
Net income attributable to common stockholders - basic	3,208		1,307			4,474		1,577
Undistributed earnings reallocated to participating securities	—		1			—		—
Net income attributable to common stockholders - diluted	$	3,208	$	1,308		$	4,474	$	1,577
Denominator:
Weighted-average shares used in computing net income per share:
Basic	33,120		32,088			32,820		31,789
Effect of potentially dilutive securities:
Common stock options	3,960		4,159			4,186		3,915
Diluted	37,080		36,247			37,006		35,704
Net income per share:
Basic	$	0.10	$	0.04		$	0.14	$	0.05
Diluted	$	0.09	$	0.04		$	0.12	$	0.04

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Potentially dilutive securities not included in the calculation of diluted net income per share because doing so would be antidilutive are as follows:

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2014	2013	2014	2013
	(in thousands)
Common stock options	1,813	394	1,483	956