Note E - Business Segments - Revenues by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 29, 2023	Dec. 30, 2022	Dec. 29, 2023	Dec. 30, 2022
Net sales	$ 72,994	$ 63,351	$ 136,547	$ 119,264
Manufacturing segment net income	930	1,746	(243)	324
Intersegment Eliminations [Member]
Net sales	(22,616)	(18,911)	(46,454)	(36,303)
Corporate, Non-Segment [Member]
Manufacturing segment net income	(4,321)	(4,096)	(8,058)	(8,876)
Manufacturing Segment [Member] | Operating Segments [Member]
Net sales	58,368	56,678	112,906	105,675
Manufacturing segment net income	2,078	4,439	3,636	6,841
Manufacturing Segment [Member] | Intersegment Eliminations [Member]
Net sales	(18,795)	(14,198)	(38,979)	(27,842)
Distribution Segment [Member] | Operating Segments [Member]
Net sales	37,242	25,584	70,095	49,892
Manufacturing segment net income	3,173	1,403	4,179	2,359
Distribution Segment [Member] | Intersegment Eliminations [Member]
Net sales	$ (3,821)	$ (4,713)	$ (7,475)	$ (8,461)