Description of Business and Basis of Presentation (Tables)

3 Months Ended

Mar. 31, 2013

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

	Three Months Ended
	March 31,
	2013			2012
Numerator
Net loss	$	(278	)	$	(952	)
Denominator
Weighted-average common shares outstanding	28,825			28,122
Effect of potentially dilutive securities:
Options to purchase common stock	—			—
Restricted stock awards	—			—
Restricted stock unit awards	—			—
Employee stock purchase plan	—			—
Weighted-average common shares outstanding, assuming dilution	28,825			28,122
Net loss per share
Basic	$	(0.01	)	$	(0.03	)
Diluted	$	(0.01	)	$	(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 income (loss) per share calculation because to do so would be anti-dilutive (in thousands):

	Three Months Ended
	March 31,
	2013	2012
Outstanding options to purchase common stock	544	178
Restricted stock awards	442	230
Restricted stock unit awards	57	—
Employee stock purchase plan awards	—	—