Note E - Business Segments - Revenues by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 30, 2022	Dec. 31, 2021	Dec. 30, 2022	Dec. 31, 2021
Net sales	$ 63,351	$ 59,889	$ 119,264	$ 107,650
Manufacturing segment net income (loss)	1,139	(3,836)	(889)	(1,914)
Intersegment Eliminations [Member]
Net sales	(18,911)	(17,700)	(36,303)	(32,068)
Corporate, Non-Segment [Member]
Manufacturing segment net income (loss)	(4,096)	(3,731)	(8,875)	(7,124)
Manufacturing Segment [Member] | Operating Segments [Member]
Net sales	56,678	49,298	105,675	90,893
Manufacturing segment net income (loss)	3,832	(1,601)	5,627	3,231
Manufacturing Segment [Member] | Intersegment Eliminations [Member]
Net sales	(14,198)	(13,200)	(27,842)	(24,143)
Distribution Segment [Member] | Operating Segments [Member]
Net sales	25,584	28,291	49,892	48,825
Manufacturing segment net income (loss)	1,403	1,496	2,359	1,979
Distribution Segment [Member] | Intersegment Eliminations [Member]
Net sales	$ (4,713)	$ (4,500)	$ (8,461)	$ (7,925)