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Significant Stock-Based Plan Activity and Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2014
Significant Stock-Based Plan Activity and Stock-Based Compensation [Abstract]  
Stock-based compensation expense
Stock-based compensation expense was recognized in our Consolidated Statements of Operations as follows (in thousands):

  
Three Months Ended
September 30,
  
Nine Months Ended
September 30,
 
  
2014
  
2013
  
2014
  
2013
 
Selling, general and administrative expense
 
$
320
  
$
236
  
$
720
  
$
514
 
Cost of sales
  
41
   
48
   
85
   
118
 
Total Stock-based compensation expense
 
$
361
  
$
284
  
$
805
  
$
632