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Share-Based Compensation (Tables)
 3 Months Ended
Mar. 31, 2013
Share-based Compensation [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity
The following table summarizes stock option activity for the three month period ended March 31, 2013:
 
 
Number of Shares
 
Weighted Average Exercise Price Per Share
 
Weighted Average remaining Contractual Life (years)
 
Aggregate Intrinsic Value (in thousands)
Outstanding balance at December 31, 2012
 
6,429,250

 
$1.28
 
 
 
 
Granted
 
—

 
—

 
 
 
 
Exercised
 
—

 
—

 
 
 
 
Expired
 
(534,250
)
 
4.47
 
 
 
 
Forfeited
 
(12,500
)
 
0.72
 
 
 
 
Outstanding balance at March 31, 2013
 
5,882,500

 
$1.00
 
7.5
 
$21
Options exercisable at March 31, 2013
 
2,602,500

 
$1.38
 
6.0
 
$15