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Note G - Pension and Other Postretirement Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Thousands
 3 Months Ended
Sep. 30, 2022
Sep. 24, 2021
Pension Plan [Member]    
Service cost $ 101 $ 139
Prior service cost 8 10
Interest cost 868 666
Expected return on plan assets (1,060) (1,259)
Amortization of transition obligation 9 9
Amortization of prior service cost 9 (4)
Amortization of actuarial net loss 617 562
Net periodic benefit cost 553 123
Service cost 101 139
Interest cost 868 666
Other Postretirement Benefits Plan [Member]    
Service cost 2 4
Interest cost 53 35
Amortization of prior service cost (69) (69)
Net periodic benefit cost (23) (30)
Service cost 2 4
Interest cost 53 35
Amortization of actuarial net loss $ (10) $ 0