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Note G - Pension and Other Postretirement Benefit Plans (Tables)
9 Months Ended
Mar. 25, 2016
Notes Tables  
Schedule of Net Benefit Costs [Table Text Block]
   
For the Quarter Ended
   
For the Three Quarters Ended
 
   
Mar. 25,
2016
   
Mar. 27,
2015
   
Mar. 25,
2016
   
Mar. 27,
2015
 
                                 
Pension Benefits:
                               
Service cost
  $ 128     $ 120     $ 386     $ 359  
Interest cost
    1,225       1,215       3,675       3,661  
Expected return on plan assets
    (1,691 )     (2,105 )     (5,074 )     (5,469 )
Amortization of transition obligation
    8       10       25       29  
Amortization of actuarial net loss
    897       607       2,703       1,825  
Net periodic benefit cost (income)
  $ 567     $ (153 )   $ 1,715     $ 405  
                                 
Postretirement Benefits:
                               
Service cost
  $ 7     $ 8     $ 21     $ 23  
Interest cost
    151       144       453       434  
Amortization of actuarial net loss
    182       160       546       478  
Net periodic benefit cost
  $ 340     $ 312     $ 1,020     $ 935