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Stock Awards (Tables)
 6 Months Ended
Jun. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Schedule of restricted stock
     Restricted Stock  

Nonvested shares

    Number
of
Shares		      Weighted-
Average
Grant-Date
Fair Value		  

Nonvested, January 1, 2013

      7,731       $ 38.80   

Granted

      1,335         37.45   

Vested

      —           —     

Forfeited

      —           —     
  

 

 

     

 

 

  

Nonvested, June 30, 2013

      9,066       $ 38.60