Description of Business and Basis of Presentation (Tables)

9 Months Ended

Sep. 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 loss per share (in thousands, except per share data):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
Numerator
Net loss	$	(1,449	)	$	(3,292	)	$	(20,166	)	$	(4,154	)
Denominator
Weighted-average common shares outstanding	31,529			29,284			30,440			29,146
Net loss per share
Basic and diluted	$	(0.05	)	$	(0.11	)	$	(0.66	)	$	(0.14	)

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		Nine Months Ended
	September 30,		September 30,
	2015	2014	2015	2014
Outstanding options to purchase common stock	956	701	956	701
Unvested restricted stock awards	263	543	263	543
Unvested restricted stock unit awards	870	168	870	168