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Significant Stock-Based Plan Activity and Stock-Based Compensation
9 Months Ended
Sep. 30, 2013
Significant Stock-Based Plan Activity and Stock-Based Compensation [Abstract]  
Significant Stock-Based Plan Activity and Stock-Based Compensation
Note 9.         Significant Stock-Based Plan Activity and Stock-Based Compensation

Stock-Based Compensation Expense
Total stock-based compensation expense, recognized as a component of Selling, general and administrative expense on our Consolidated Statements of Operations, was as follows (in thousands):

 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
 
2013
 
2012
 
2013
 
2012
 
Stock-based compensation expense
 
$
284
  
$
218
  
$
632
  
$
529
 

At September 30, 2013, we had total unrecognized stock-based compensation expense of $1.8 million, which will be recognized over the weighted average remaining vesting period of 3.0 years.