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Net Income (Loss) Per Share
12 Months Ended
Dec. 31, 2012
Net Income (Loss) Per Share [Abstract]  
Net Income (Loss) Per Share
13. Net Income (Loss) Per Share

Our basic net (loss) income per share amounts have been computed by dividing net (loss) income by the weighted-average number of common shares outstanding during the period. For 2012 and 2010, we reported net losses and, therefore, potential common shares were not included since such inclusion would have been anti-dilutive. For 2011, we reported net income, and the computation of diluted earnings per share is based upon the weighted-average number of our common shares and dilutive effect, determined using the treasury stock method, of potential common shares outstanding. As of December 31, 2012, 2011 and 2010, our 28, 98 and 341, respectively, shares of unvested restricted stock outstanding have non-forfeitable rights to dividends. The allocation of 2012 and 2010 net losses and the 2011 net income to these participating securities pursuant to the two-class method is not material to both basic and diluted earnings per share. The calculations of net loss per share, basic and diluted, are as follows:

 
 
Net (Loss) Income
(Numerator)
  
Weighted Average
Common Shares
(Denominator)
  
Per Share
Amount
 
2012:
 
  
  
 
Basic and diluted
 
$
(35,431
)
  
34,754
  
$
(1.02
)
2011:
            
Basic
 
$
10,381
   
33,375
  
$
0.31
 
  Dilutive effect of stock options
  
-
   
66
     
  Dilutive effect of restricted stock
  
-
   
53
     
Diluted
 
$
10,381
   
33,494
  
$
0.31
 
2010:
            
Basic and diluted
 
$
(69,725
)
  
32,590
  
$
(2.14
)

During 2012, 2011 and 2010, anti-dilutive common shares excluded from diluted per share amounts consist of the following:

 
 
2012
 
 
2011
 
 
2010
 
 
Weighted
Average
Number
 
 
Weighted
Average
Exercise Price
 
 
Weighted
Average
Number
 
 
Weighted
Average
Exercise Price
 
 
Weighted
Average
Number
 
 
Weighted
Average
Exercise Price
Options
 
 
5,947
 
 
$
12.32
 
 
 
4,543
 
 
$
14.92
 
 
 
5,037
 
 
$
15.17
Restricted stock
 
 
60
 
 
 
 
 
 
 
45
 
 
 
 
 
 
 
45
 
 
 
 
Total
 
 
6,007
 
 
 
 
 
 
 
4,588
 
 
 
 
 
 
 
5,082