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Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2012
Stock-Based Compensation [Abstract]  
Summary of restricted stock activity
                                                 
    2012     2011     2010  
    Shares     Weighted
Average
Fair
Value
    Shares     Weighted
Average
Fair
Value
    Shares     Weighted
Average
Fair
Value
 

Nonvested at beginning of year

    38,650     $ 6.20       73,955     $ 11.02       91,233     $ 14.98  

Granted

    66,100       14.30       0       NA       0       NA  

Vested

    (38,266     6.20       (28,533     17.57       (12,941     37.76  

Forfeited

    (384     6.20       (6,772     10.99       (4,337     14.62  
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Nonvested at end of year

    66,100     $ 14.30       38,650     $ 6.20       73,955     $ 11.02  
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
Summary of stock option activity
                                                 
    2012     2011     2010  
    Shares     Weighted
Average
Exercise
Price
    Shares     Weighted
Average
Exercise
Price
    Shares     Weighted
Average
Exercise
Price
 

Outstanding at beginning of year

    214,903     $ 22.40       262,042     $ 21.18       293,462     $ 20.43  

Granted

    0       NA       0       NA       0       NA  

Exercised

    (50,930     10.83       (8,800     6.21       0       NA  

Forfeited or expired

    (11,077     23.77       (38,339     17.80       (31,420     14.15  
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Outstanding at end of year

    152,896     $ 26.15       214,903     $ 22.40       262,042     $ 21.18  
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
             

Options exercisable at year-end

    152,896     $ 26.15       212,643     $ 22.57       250,222     $ 21.86  
   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 
Summary of options outstanding
                                         
    Outstanding     Exercisable  

Range of Exercise Prices

  Number     Weighted
Average
Remaining
Contractual
Life
    Weighted
Average
Exercise
Price
    Number     Weighted
Average
Exercise
Price
 
           

$  6.21 - $  8.00

    20,500       2.9 Years     $ 6.21       20,500     $ 6.21  

$16.01 - $20.00

    37,485       1.9 Years       17.74       37,485       17.74  

$24.01 - $28.00

    19,916       0.8 Years       26.61       19,916       26.61  

$32.01 - $36.00

    56,105       2.3 Years       34.75       56,105       34.75  

$36.01 - $40.00

    14,844       0.9 Years       37.94       14,844       37.94  

$40.01 - $44.00

    4,046       1.8 Years       40.28       4,046       40.28  
   

 

 

                   

 

 

         
           

Outstanding at year end

    152,896       1.9 Years     $ 26.15       152,896     $ 26.15  
   

 

 

                   

 

 

         
Summary of information related to options outstanding
                         
    2012     2011     2010  
       

Minimum exercise price

  $ 6.21     $ 6.21     $ 6.21  

Maximum exercise price

    40.28       40.28       40.28  

Average remaining option term

    1.9 Years       2.8 Years       3.5 Years  
Summary of stock option grants and exercises
                         
    2012     2011     2010  
       

Aggregate intrinsic value of stock options exercised

  $ 307,000     $ 26,000     $ NA  

Cash received from stock option exercises

    228,000       55,000       NA  

Tax benefit realized from stock option exercises

    0       0       NA  

Weighted average per share fair value of stock options granted

    NA       NA       NA