Note E - Business Segments - Revenues by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 27, 2024	Dec. 29, 2023	Dec. 27, 2024	Dec. 29, 2023
Net sales	$ 89,921	$ 72,994	$ 162,818	$ 136,547
Manufacturing segment net income	919	930	(1,846)	(243)
Intersegment Eliminations [Member]
Net sales	(22,269)	(22,616)	(42,274)	(46,454)
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Manufacturing segment net income	(3,440)	(4,321)	(9,025)	(8,058)
Manufacturing Segment [Member] | Operating Segments [Member]
Net sales	76,463	58,368	139,781	112,906
Manufacturing segment net income	3,131	2,078	5,000	3,636
Manufacturing Segment [Member] | Intersegment Eliminations [Member]
Net sales	(14,673)	(18,795)	(28,045)	(38,979)
Distribution Segment [Member] | Operating Segments [Member]
Net sales	35,727	37,242	65,311	70,095
Manufacturing segment net income	1,228	3,173	2,179	4,179
Distribution Segment [Member] | Intersegment Eliminations [Member]
Net sales	$ (7,596)	$ (3,821)	$ (14,229)	$ (7,475)