Net Income (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Net Income (Loss) Per Share

For purposes of this calculation, common stock subject to repurchase by the Company and options are considered to be common stock equivalents and are only included in the calculation of diluted earnings per share when their effect is dilutive.

	Three Months Ended March 31,
	2014			2013
	(unaudited, in thousands, except per share amounts)
Numerator:
Net loss available to common stockholders	$	(5,167	)	$	(6,158	)
Denominator:
Weighted average shares outstanding - basic		37,714			36,614
Potential common shares - options (treasury stock method)		—			—
Weighted average shares outstanding - diluted		37,714			36,614
Shares excluded (anti-dilutive)		186			70
Shares excluded due to an exercise price greater than weighted average stock price for the period		1,340			1,473
Net loss per common share:
Basic	($	0.14	)	($	0.17	)
Diluted	($	0.14	)	($	0.17	)