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Share-based Compensation (Tables)
3 Months Ended
Mar. 31, 2013
Share-based Compensation [Abstract]  
Summary of share-based compensation expense
                 
    Three months ended March 31,  
    2013     2012  

Cost of sales

  $ 128     $ 85  

Selling, general and administrative expenses

    398       494  
   

 

 

   

 

 

 

Total

  $ 526     $ 579  
   

 

 

   

 

 

 
Schedule of Share-Based Compensation, Stock Options, Activity
                                 
    Options
Outstanding
    Weighted
Average
Exercise Price
per Share
    Weighted
Average
Remaining
Contractual
Life
    Aggregate
Intrinsic  Value
 
                      (In thousands)  

Balance, January 1, 2013

    47,000     $ 23.19                  

Options granted

    —         —                    

Options exercised or exchanged

    —         —                    

Options canceled

    —         —                    
   

 

 

                         

Balance, March 31, 2013

    47,000       23.19       4.62     $ 267  
   

 

 

                   

 

 

 

Exercisable, March 31, 2013

    47,000       23.19       4.62     $ 267  
   

 

 

                   

 

 

 
Summary of the status of the Company's RSUs and PSAs
                 
    Number of RSUs
and PSAs
    Weighted Average
Grant  Date Fair Value
 

Unvested RSUs and PSAs at January 1, 2013

    243,141     $ 26.11  

RSUs and PSAs granted

    —         —    

RSUs and PSAs vested

    (88,018     23.37  

RSUs and PSAs canceled

    (6,818     24.14  
   

 

 

         

Unvested RSUs and PSAs at March 31, 2013

    148,305       27.82