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Net Income (Loss) Per Share
12 Months Ended
Dec. 31, 2011
Net Loss Per Share [Abstract]  
Net Loss Per Share
13. Net Income (Loss) Per Share

Our basic net income (loss) per share amounts have been computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the period. For the year ended December 31, 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, 2011, our 98 shares of unvested restricted stock outstanding have non-forfeitable rights to dividends. The allocation of 2011 net income to these participating securities pursuant to the two-class method is not material to both basic and diluted earnings per share. For the years ended December 31, 2010 and 2009, we reported net losses and, therefore, potential common shares were not included since such inclusion would have been anti-dilutive. The calculations of net loss per share, basic and diluted, are as follows:

 
Net Income (Loss)
(Numerator)
   
Weighted Average
Common Shares
(Denominator)
 
Per Share
Amount
 
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
)
2009:
             
Basic and diluted
$          (30,612
)
 
31,219
 
$       (0.98
)

During 2011, 2010 and 2009, anti-dilutive common shares excluded from diluted per share amounts consist of the following:

 
2011
 
2010
 
2009
 
Weighted
Average
Number
Weighted
Average
Exercise Price
 
Weighted
Average
Number
Weighted
Average
Exercise Price
 
Weighted
Average
Number
Weighted
Average
Exercise Price
Options
4,543
$      14.92
 
5,037
$      15.17
 
4,705
$     17.48
Restricted stock
45
   
45
   
34
 
Total
4,588
   
5,082
   
4,739