Note G - Pension and Other Postretirement Benefit Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 25, 2016	Mar. 27, 2015	Mar. 25, 2016	Mar. 27, 2015
Pension Benefits [Member]
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 [Member]
Pension 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 (income)	$ 340	$ 312	$ 1,020	$ 935