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Net Loss Per Share
 9 Months Ended
Sep. 30, 2012
Net Loss Per Share [Abstract]  
Net Loss Per Share
3.  Net (Loss) Income 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. As of September 30, 2012 and 2011, the 28 and 101 shares, respectively, of unvested restricted stock outstanding have non-forfeitable rights to dividends. The allocation of net loss and net income, in the respective periods, to these participating securities pursuant to the two-class method is not material to both basic and diluted earnings per share. For the three and nine months ended September 30, 2012 and for the three months ended September 30, 2011, we reported net losses and, therefore, potential common shares were not included in the computation of diluted net loss per share since such inclusion would have been anti-dilutive. For the nine months ended September 30, 2011, we reported net income, and the computation of diluted earnings per share is based upon the weighted-average number of common shares and dilutive effect, determined using the treasury stock method, of potential common shares outstanding. The calculations of net (loss) income per share, basic and diluted, are as follows:

 
 
Net (Loss) Income
(Numerator)
 
 
Weighted Average
Common Shares
(Denominator)
 
 
Per Share
Amount
 
Three months ended September 30, 2012
 
 
 
 
 
 
Basic and diluted
 
$
(11,301
)
 
 
33,848
 
 
$
(0.33
)
Nine months ended September 30, 2012
 
 
 
 
 
 
 
 
 
 
 
 
Basic and diluted
 
$
(35,107
)
 
 
33,803
 
 
$
(1.04
)
Three months ended September 30, 2011
 
 
 
 
 
 
 
 
 
 
 
 
Basic and diluted
 
$
(11,432
)
 
 
33,710
 
 
$
(0.34
)
Nine months ended September 30, 2011
 
 
 
 
 
 
 
 
 
 
 
 
Basic
 
$
21,127
 
 
 
33,501
 
 
$
0.63
 
Dilutive effect of stock options
 
 
-
 
 
 
142
 
 
 
 
 
Dilutive effect of restricted stock
 
 
-
 
 
 
21
 
 
 
 
 
Diluted
 
$ 
21,127
 
 
 
33,664
 
 
$
0.63
 

For the three and nine months ended September 30, 2012 and 2011, anti-dilutive common shares excluded from diluted per share amounts consist of the following:

 
Three Months Ended September 30,
 
 
2012
 
 
2011
 
 
Weighted
Average
Number
 
 
Weighted
Average
Exercise Price
 
 
Weighted
Average
Number
 
 
Weighted
Average
Exercise Price
Options
 
 
6,035
 
 
$
12.22
 
 
 
6,186
 
 
$
12.65
Restricted stock
 
 
33
 
 
 
 
 
 
 
9
 
 
 
 
Total
 
 
6,068
 
 
 
 
 
 
 
6,195
 
 
 
 

 
Nine Months Ended September 30,
 
2012
2011
 
Weighted
Average
Number
Weighted
Average
Exercise Price
Weighted
Average
Number
Weighted
Average
Exercise Price
Options
6,019
$
12.31
4,126
$
15.78
Restricted stock
 
68
 
-
Total
 
6,087
 
4,126