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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2012
Summary of Significant Accounting Policies [Abstract]  
Estimated useful lives by major classes of property and equipment

Estimated useful lives by major classes of property and equipment are as follows:

 

             

Land improvements

     15 – 30 years      

Buildings

     20 – 40 years      

Machinery and equipment

     3 – 30 years      
Schedule of Goodwill
         
    Total  

Goodwill balance, December 31, 2010

   $ 21,451  

Goodwill written off related to sale of business

     (973 ) 
      —    
   

 

 

  

Goodwill balance, December 31, 2011

     20,478  
   

 

 

  

Goodwill balance, December 31, 2012

   $ 20,478  
   

 

 

  
Summary of accumulated other comprehensive income (loss)

Accumulated other comprehensive loss consists of the following:

 

                 
    December 31,  
    2012     2011  
    (in thousands)  

Pension liability adjustment, net of tax benefit of $1,244 and $1,294

   $ (2,188 )    $ (2,326 ) 

Deferred gain (loss) on cash flow derivatives, net of tax benefit of $50 and expense of $44

     (85 )      14  
   

 

 

    

 

 

  

Total

   $ (2,273 )    $ (2,312 ) 
   

 

 

    

 

 

  
Summary of earnings (loss) per basic and diluted weighted average common shares outstanding

Earnings (loss) per basic and diluted weighted average common shares outstanding was calculated as follows for the years ended December 31 (in thousands, except per share data):

 

                         
    2012     2011     2010  

Net income (loss)

   $ 16,244     $ 12,660     $ (5,440 ) 
   

 

 

    

 

 

    

 

 

  

Basic weighted-average common shares outstanding

     9,377       9,333       9,278  

Effect of potentially dilutive common shares (1)

     68       51       —    
   

 

 

    

 

 

    

 

 

  

Diluted weighted-average common shares outstanding

     9,445       9,384       9,278  
   

 

 

    

 

 

    

 

 

  

Earnings (loss) per common share:

                        

Earnings (loss) per basic common share

   $ 1.73     $ 1.36     $ (0.59 ) 

Earnings (loss) per diluted common share

     1.72       1.35       (0.59 ) 

Antidilutive shares excluded from net earnings per diluted common share calculation

     92       58       47  

 

(1) Represents the effect of the assumed exercise of stock options and the vesting of restricted stock units and performance stock awards, based on the treasury stock method.