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RETIREMENT BENEFIT PLANS (Tables)
 6 Months Ended
Jun. 26, 2015
RETIREMENT BENEFIT PLANS [Abstract]  
Net Periodic Benefit Cost
  
Other Benefits
 
  
Three Months Ended
  
Six Months Ended
 
  
June 26,
2015
  
June 27,
2014
  
June 26,
2015
  
June 27,
2014
 
Components of net periodic benefit cost:
        
Interest cost
 
$
13
  
$
10
  
$
25
  
$
20
 
Amortization of net loss
  
9
   
(4
)
  
17
   
(9
)
Net periodic benefit cost
 
$
22
  
$
6
  
$
42
  
$
11
 
Other Benefits [Member]  
RETIREMENT BENEFIT PLANS [Abstract]  
Net Periodic Benefit Cost
Information regarding the Company’s net periodic benefit cost for pension and other postretirement benefit plans for the three and six months ended June 26, 2015 and June 27, 2014 is as follows (amounts in thousands):

 
Pension Benefits
 
 
Three Months Ended
 
Six Months Ended
 
 
June 26,
2015
 
June 27,
2014
 
June 26,
2015
 
June 27,
2014
 
Components of net periodic benefit cost:
    
Interest cost
 
$
14
  
$
16
  
$
29
  
$
30
 
Expected return on plan assets
  
(17
)
  
(17
)
  
(33
)
  
(32
)
Amortization of net loss
  
12
   
10
   
24
   
19
 
Net periodic benefit cost
 
$
9
  
$
9
  
$
20
  
$
17