Net Loss Per Share

3 Months Ended

Mar. 31, 2012

Net Loss Per Share [Abstract]

Net Loss Per Share

Note 3 - Net Loss Per Share

Basic net loss per share is computed by dividing the net loss attributable to common shares for the period by the weighted average number of common shares outstanding during the period.

Diluted net loss per share attributed to common shares is computed by dividing the net loss attributable to common shares for the period by the weighted average number of common and potential common shares outstanding during the period, if the effect of each class of potential common shares is dilutive. Potential common shares include restricted common stock units and incremental shares of common stock issuable upon the exercise of stock options.

A summary of the net loss per share for the three months ended March 31, 2012 and 2011 is as follows (in thousands, except per share amounts):

	Three MonthsEnded March 31,
	2012			2011
Net loss per share:
Numerator
Net loss	$	(10,040	)	$	(7,760	)
Denominator for basic and diluted net loss per share
Weighted-average common shares outstanding		35,199			28,674
Net loss per share - basic and diluted	$	(0.29	)	$	(0.27	)

The following weighted-average outstanding stock options and restricted stock units were excluded from the computation of diluted net loss per common share for the periods presented because including them would have had an anti-dilutive effect (in thousands):

	Three MonthsEnded March 31,
	2012		2011
Stock options and restricted stock units		5,090		4,892