Net Loss Per Share

9 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Net Income (Loss) Per Share

Net Loss Per Share

Net loss per share was calculated by dividing net loss by the weighted average number of common shares outstanding for the three and nine months ended September 30, 2013 and 2012.

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2013			2012			2.013			2,012
Net loss	$	(8,990	)	$	(5,857	)	$	(12,655	)	$	(29,256	)
Shares used in computing basic and diluted net loss per share	62,730			61,327			62,407			59,224
Basic and diluted net loss per share	$	(0.14	)	$	(0.10	)	$	(0.20	)	$	(0.49	)

The following outstanding Company securities were excluded from the above calculations of net loss per share because their impact would have been anti-dilutive:

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2013	2012	2013	2012
Common stock options	2,390	3,484	2,411	3,679
Restricted stock awards	398	487	394	487
Restricted stock units	229	419	219	419
Total	3,017	4,390	3,024	4,585

See Note 9 for a discussion of common stock issuable upon the achievement of certain revenue and regulatory milestones.