Description of Business and Basis of Presentation (Tables)

6 Months Ended

Jun. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of computation of basic and diluted net income (loss) per share

The following table sets forth the computation of basic and diluted net income per share (in thousands, except per share data):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2015			2014			2015			2014
Numerator
Net loss	$	(9,376	)	$	(1,181	)	$	(18,717	)	$	(862	)
Denominator
Weighted-average common shares outstanding	30,323			29,206			29,886			29,127
Net loss per share
Basic and diluted	$	(0.31	)	$	(0.04	)	$	(0.63	)	$	(0.03	)

Schedule of instruments convertible into common shares that are not included in the denominator used in the diluted net income (loss) per share calculation because to do so would be anti-dilutive

The following table summarizes instruments that may be convertible into common shares that are not included in the denominator used in the diluted net loss per share calculation because to do so would be anti-dilutive (in thousands):

	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2015	2014	2015	2014
Outstanding options to purchase common stock	918	758	918	758
Unvested restricted stock awards	286	600	286	600
Unvested restricted stock unit awards	862	203	862	203
Employee stock purchase plan awards	24	—	24	—