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Share Based Compensation (Tables)
9 Months Ended
Sep. 30, 2012
Share-Based Compensation [Abstract]  
Fair Values of all Options Granted Estimated Using Binomial Option-Pricing Model with Weighted-average Assumptions

The fair values of all of the options granted for the periods indicated have been estimated using a binomial option-pricing model with the weighted-average assumptions for the periods shown are presented in the following table:

 

    Nine Months Ended September 30,
    2012   2011
Dividend yield     2.17 %     1.72 %
Weighted average expected volatility     50.90 %     46.87 %
Weighted average risk-free interest rate     1.14 %     2.58 %
Weighted average expected lives (in years)     5.35       5.70  
Weighted average grant-date fair value   $ 7.85     $ 7.76  

 

Summary of share option activity

A summary of share option activity for the period indicated is reflected in the following table:

 

            Weighted    
    Number   Weighted   Average   Aggregate
    of   Average   Contractual   Intrinsic
    Common   Exercise   Remaining   Value
    Shares   Share Price   Life(Years)   (in thousands)
                 
Balance at January 1, 2012     635,197     $ 31.42             $ 406  
Granted     20,633     $ 19.02             $ 5  
Exercised     (1,217 )   $ 12.84             $ 6  
Forfeited or expired     (37,231 )   $ 31.95             $ 30  
Balance at September 30, 2012     617,382     $ 31.01       2.0     $ 551  
Exercisable at September 30, 2012     562,319     $ 32.27       1.7     $ 487  
Weighted average fair value of options                                
granted during the year           $ 7.85                  
Summary of Activity for Company's Non-Vested Options

A summary of the activity for the Company’s non-vested options for the period indicated is presented in the following table:

 

        Weighted
        Average
    Number   Grant-Date
(In dollars, except share data):   of Shares   Fair Value
Non-vested options at January 1, 2012     79,640     $ 6.33  
Granted     20,633     $ 7.85  
Vested     (42,147 )   $ 5.44  
Forfeited or expired     (3,063 )   $ 6.69  
Non-vested options at September 30, 2012     55,063     $ 7.56  
Summary of Activity for Company's Restricted Stock

A summary of the activity for the Company’s restricted stock for the period indicated is presented in the following table:

 

        Weighted
        Average
    Number   Grant-Date
(In dollars, except share data):   of Shares   Fair Value
Restricted stock at January 1, 2012     206,313     $ 16.37  
Granted     83,807     $ 19.02  
Vested     (59,365 )   $ 16.15  
Forfeited or expired     (5,494 )   $ 16.78  
Restricted stock at September 30, 2012     225,261     $ 17.40