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Pension And Other Retirement Benefit Plans (Tables)
6 Months Ended
Jun. 30, 2012
Pension And Other Retirement Benefit Plans [Abstract]  
Components Of Net Periodic Benefit Costs
   
Three Months Ended
   
Six Months Ended
 
   
June 30,
   
June 30,
 
Components of Net Periodic Benefit Cost
 
2012
   
2011
   
2012
   
2011
 
                         
Service cost
 
$
21
   
$
28
   
$
43
   
$
56
 
Interest cost
   
53
     
53
     
106
     
107
 
Amortization of prior service cost
   
14
     
14
     
27
     
27
 
Amortization of actuarial losses
   
10
     
0
     
20
     
1
 
Net periodic benefit cost
 
$
98
   
$
95
   
$
196
   
$
191