Note G - Pension and Other Postretirement Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 29, 2023	Dec. 30, 2022	Dec. 29, 2023	Dec. 30, 2022
Pension Plan [Member]
Service cost	$ 94	$ 102	$ 188	$ 203
Prior service cost	0	8	0	17
Interest cost	896	868	1,792	1,736
Expected return on plan assets	(1,048)	(1,060)	(2,096)	(2,120)
Amortization of transition obligation	10	9	19	18
Amortization of prior service cost	9	9	17	18
Amortization of actuarial net loss	16	617	31	1,235
Net periodic benefit (gain) cost	(23)	553	(49)	1,107
Other Postretirement Benefits Plan [Member]
Service cost	2	2	4	5
Interest cost	48	53	95	106
Amortization of prior service cost	(22)	(69)	(44)	(137)
Amortization of actuarial net loss	(155)	(10)	(310)	(19)
Net periodic benefit (gain) cost	$ (127)	$ (24)	$ (255)	$ (45)