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Note 17 - Employee Benefit Plans
 9 Months Ended
Oct. 01, 2017
Notes to Financial Statements  
Pension and Other Postretirement Benefits Disclosure [Text Block]
(
1
7
)
Employee Benefit Plans
 
Pension
expense (benefit) consisted of the following (in thousands):
 
   
Three Months Ended
    
Nine
Months Ended
  
   
October 1
,
    
October 2
,
    
October 1
,
    
October 2
,
  
   
201
7
    
201
6
    
201
7
    
201
6
  
   
(Unaudited)
 
  
(Unaudited)
  
                                 
Service cost
   $
1
     $
1
     $
4
     $
4
  
Interest cost on projected benefit obligation
    
380
      
419
      
1,139
      
1,256
  
Net amortizations, deferrals and other costs
    
174
      
166
      
521
      
498
  
Expected return on plan assets
    
(454
)
    
(493
)
    
(1,361
)
    
(1,478
)
Net periodic benefit cost
   $
101
     $
93
     $
303
     $
280