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Employee Benefits (Tables)
 12 Months Ended
Dec. 31, 2014
Employee Benefits [Abstract]  
Schedule of unvested RRP shares
Unvested stock awards at December 31, 2014:
  
Number
of Shares
    
Grant Date
Fair Value
  
Beginning of year
    
 
1,900
    
$
15.87
  
Granted
    
 
30,000
      
 
21.89
  
Vested
    
(6,700
)
    
 
21.25
  
End of year
    
 
25,200
    
$
21.61