Note E - Business Segments - Revenues by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 25, 2022	Mar. 31, 2023	Mar. 25, 2022
Net sales	$ 73,772	$ 59,289	$ 193,036	$ 166,939
Manufacturing segment net income	2,674	2,231	1,785	316
Intersegment Eliminations [Member]
Net sales	(23,999)	(20,774)	(60,303)	(52,842)
Corporate, Non-Segment [Member]
Manufacturing segment net income	(5,252)	(5,184)	(14,127)	(12,310)
Manufacturing Segment [Member] | Operating Segments [Member]
Net sales	63,932	56,403	169,607	147,296
Manufacturing segment net income	5,873	6,000	11,500	9,230
Manufacturing Segment [Member] | Intersegment Eliminations [Member]
Net sales	(18,531)	(16,672)	(46,373)	(40,815)
Distribution Segment [Member] | Operating Segments [Member]
Net sales	33,839	23,660	83,732	72,485
Manufacturing segment net income	2,053	1,415	4,412	3,396
Distribution Segment [Member] | Intersegment Eliminations [Member]
Net sales	$ (5,468)	$ (4,102)	$ (13,930)	$ (12,027)