Note G - Pension and Other Postretirement Benefit Plans - Pension and Other Postretirement Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 30, 2016	Dec. 25, 2015	Dec. 30, 2016	Dec. 25, 2015
Pension Plan [Member]
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
Other Postretirement Benefit Plan [Member]
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