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Note G - Pension and Other Postretirement Benefit Plans (Tables)
6 Months Ended
Dec. 30, 2016
Notes Tables  
Schedule of Net Benefit Costs [Table Text Block]
   
For the Quarter Ended
   
For the Two Quarters Ended
 
   
December 30, 2016
   
December 25, 2015
   
December 30, 2016
   
December 25, 2015
 
Pension Benefits:
                               
Service cost
  $
259
    $
128
    $
480
    $
258
 
Interest cost
   
1,118
     
1,225
     
2,243
     
2,450
 
Expected return on plan assets
   
(1,457
)    
(1,691
)    
(2,899
)    
(3,383
)
Amortization of transition obligation
   
9
     
8
     
18
     
17
 
Amortization of prior service cost
   
1
     
-
     
2
     
-
 
Amortization of actuarial net loss
   
899
     
898
     
1,798
     
1,806
 
Net periodic benefit cost
  $
829
    $
568
    $
1,642
    $
1,148
 
                                 
Postretirement Benefits:
                               
Service cost
  $
6
    $
7
    $
12
    $
14
 
Interest cost
   
122
     
151
     
244
     
302
 
Amortization of actuarial net loss
   
182
     
182
     
364
     
364
 
Net periodic benefit cost
  $
310
    $
340
    $
620
    $
680