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Share-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2014
Summary of Restricted Share Awards

A summary of the restricted share awards for the year ended December 31, 2014 is as follows:

 

     Restricted Share Awards  
     Performance
and Service
Required
     Service
Required
     Total
Restricted
Awards
     Weighted-Average
Grant-Date
Fair Value
 

Nonvested as of January 1, 2014

     89,459         10,202         99,661       $ 65.86   

Granted

     40,676         4,799         45,475         63.95   

Vested

     (38,090      (4,588      (42,678      60.77   

Forfeited

     (3,537      0         (3,537      60.77   
  

 

 

    

 

 

    

 

 

    

 

 

 

Nonvested as of December 31, 2014

  88,508      10,413      98,921    $ 67.36   
  

 

 

    

 

 

    

 

 

    

 

 

 
Weighted-Average Assumptions for Estimating Fair Values

The fair values for the stock options granted were estimated at the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions:

 

     2014     2012     2011  

Risk-free interest rate

     1.9     1.3     1.4

Dividend yield

     1.7     1.9     1.9

Expected life (years)

     5        6        6   

Expected volatility

     42.9     47.0     47.1
Long Term Incentive Plan [Member]  
Activity in Company's Plan

Activity in the Company’s LTIP plan for the year ended December 31, 2014 was as follows:

 

     Number of
Shares
     Weighted
Average
Exercise Price
per Share
     Weighted
Average
Remaining
Contractual
Term (Years)
     Aggregate
Intrinsic
Value
 

Outstanding at January 1, 2014

     17,000       $ 54.20         

Granted

     35,500       $ 60.47         

Exercised

     (1,250    $ 52.10         

Forfeited

     (3,500    $ 65.15         
  

 

 

          

Outstanding (vested and expected to vest) at December 31, 2014

  47,750    $ 58.11      8.8    $ 114   
  

 

 

          

Exercisable at December 31, 2014

  13,000    $ 53.79      7.1    $ 22   
  

 

 

          
Stock Options [Member]  
Activity in Company's Plan

Activity in the Company’s 1999 Stock Option Plan for the year ended December 31, 2014 was as follows:

 

     Number of
Shares
     Weighted
Average
Exercise Price
per Share
     Weighted
Average
Remaining
Contractual
Term (Years)
     Aggregate
Intrinsic
Value
 

Outstanding at January 1, 2014

     13,000       $ 39.95         

Exercised

     (1,000    $ 22.10         
  

 

 

          

Outstanding (exercisable and vested) at December 31, 2014

  12,000    $ 41.44      2.8    $ 158