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Derivative Instruments and Hedging Activities (Tables)
6 Months Ended
Jun. 30, 2012
Derivative Instruments and Hedging Activities [Abstract]  
Effect of derivative financial instruments on statement of earnings
The table below presents the effect of the Company's derivative financial instruments on the statement of earnings for the six months ended June 30, 2012 and 2011.
 
(Dollars in thousands)
               
                 
 
Amount of Gain
(Loss) Recognized in
Accumulated OCI on
Derivatives
 
Location of Gain
(Loss) Reclassified
from Accumulated
OCI into Income
 
Amount of Gain
(Loss) Reclassified
from Accumulated
OCI into Income
 
Six months ended
June 30,
   
Six months ended
June 30,
 
2012
 
2011
    
2012
 
2011
Interest rate derivative contracts
 $           -        
 
 $      (20)       
 
Interest income
 
 $           -       
 
 $      628