Note E - Business Segments - Revenues by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 27, 2020	Mar. 29, 2019	Mar. 27, 2020	Mar. 29, 2019
Net sales	$ 68,636	$ 77,420	$ 187,462	$ 230,216
Net income (loss)	(25,230)	4,560	(38,057)	11,494
Intersegment Eliminations [Member]
Net sales	(18,628)	(21,501)	(55,988)	(58,614)
Corporate, Non-Segment [Member]
Net income (loss)	638	(1,292)	(6,332)	(10,950)
Manufacturing Segment [Member] | Operating Segments [Member]
Net sales	58,877	71,374	170,611	211,273
Net income (loss)	(26,859)	6,350	(34,650)	21,509
Manufacturing Segment [Member] | Intersegment Eliminations [Member]
Net sales	(13,993)	(16,272)	(42,928)	(45,953)
Distribution Segment [Member] | Operating Segments [Member]
Net sales	28,387	27,547	72,839	77,557
Net income (loss)	991	(498)	2,925	935
Distribution Segment [Member] | Intersegment Eliminations [Member]
Net sales	$ (4,635)	$ (5,229)	$ (13,060)	$ (12,661)