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Net Loss Per Share
 9 Months Ended
Sep. 30, 2012
Earnings Per Share [Abstract]  
Earnings Per Share
Net Loss Per Share
Net loss per share was computed by dividing net loss by the weighted average number of common shares outstanding for the three and nine months ended September 30, 2012 and 2011 as follows:
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2012
 
2011
 
2012
 
2011
Net loss
$
(5,857
)
 
$
(6,603
)
 
$
(29,256
)
 
$
(25,064
)
Weighted average shares
61,327

 
56,961

 
59,224

 
56,365

Net loss per share - basic and diluted
$
(0.10
)
 
$
(0.12
)
 
$
(0.49
)
 
$
(0.44
)

The following outstanding Company securities were excluded from the above calculations of net loss per share because their impact would have been anti-dilutive due to the net losses during the three and nine months ended September 30, 2012 and 2011:
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2012
 
2011
 
2012
 
2011
Common stock options
3,484

 
13

 
3,679

 
429

Restricted stock awards
487

 
640

 
487

 
640

Restricted stock units
419

 
—

 
419

 
—

  Total
4,390

 
653

 
4,585

 
1,069