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Share-Based Compensation
3 Months Ended
Mar. 31, 2012
Share-Based Compensation [Abstract]  
Share-Based Compensation

Note 7. Share-Based Compensation

We recognized $0.2 million and $0.3 million of share-based compensation expense in the quarters ended March 31, 2012 and March 26, 2011, respectively. We use the Black-Scholes option-pricing model to calculate the fair value of share-based awards. Our determination of fair value of share-based awards on the date of grant is affected by assumptions regarding certain variables. These variables include, but are not limited to, our expected dividend yield, our expected stock price volatility over the expected term of the awards, the risk-free interest rate, and the expected term of the options. The anticipated risk-free interest rate is based on treasury instruments whose terms are consistent with the expected term of the stock options granted. The expected volatility, term of options and dividend yield are based on historical experience.

The following table includes the assumptions we used in determining the fair value of stock options, the resulting weighted average fair value of options granted, and estimated forfeiture rates:

 

         
    Quarters Ended
    March 31, 2012   March 26, 2011

Expected dividend yield

  3.9%   3.2%

Expected stock price volatility

  52%   51%

Risk-free interest rate

  0.8%   1.7%

Expected term of options

  4.4 years   4.4 years

Estimated forfeiture rate

  13%   13%
     

Weighted average fair value of options granted

  $3.97   $5.57

The following table represents stock option activity for the quarter ended March 31, 2012:

 

                     
    Number of
Shares
    Weighted
Average
Exercise
Price
    Weighted
Average
Remaining
Contract Life

Outstanding options at beginning of period

    887,699     $ 12.80      

Granted

    177,300       12.79      

Exercised

    (4,938     10.13      

Canceled

    (28,348     14.17      
   

 

 

             

Outstanding options at end of period

    1,031,713       12.77     4.0 years
   

 

 

             

Outstanding exercisable at end of period

    635,792       12.07     2.8 years
   

 

 

             

At March 31, 2012, the aggregate intrinsic value of options outstanding was $1.3 million, and the aggregate intrinsic value of exercisable options was $1.2 million. The intrinsic value of options exercised during the quarter ended March 31, 2012 was less than $0.1 million.