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Stock Options (Tables)
12 Months Ended
Dec. 31, 2013
Stock Options  
Schedule of Black-Scholes-Merton option valuation model assumptions
  2013   2012  

Expected Life (Years)

    7.63     7.63  

Dividend yield

    2.33 %   2.33 %

Interest rate

    2.86 %   1.58 %

Volatility

    47.28 %   47.30 %
Summary of option activity under stock option plans
  Number of
options
  Weighted
average
exercise
price
  Weighted
average
remaining
contractual
term (years)
  Aggregate
intrinsic
value ($)
 
 
   
   
   
  (in Thousands)
 

Options outstanding at December 31, 2012

    794,877   $ 19.03              

Plus: Options granted

    8,500     21.33              

Less:

                         

Options exercised

    19,075     13.83              

Options expired

    235,607     26.51              

Options forfeited

    33,552     16.94              
                         

Options outstanding at December 31, 2013

    515,143     15.98     4.16     5,375  
                         
                         

Options fully vested and exercisable at December 31, 2013

    228,001     18.37     2.67     1,851  
Schedule of other information pertaining to option activity
  Twelve Months Ended December 31,  
 
  2013   2012   2011  

Weighted average grant date fair value of stock options granted

  $ 9.05   $ 8.71   $ 5.51  

Total fair value of stock options vested

  $ 480,000   $ 524,000   $ 661,000  

Total intrinsic value of stock options exercised

  $ 171,000   $ 41,000   $ 27,000