Note E - Business Segments - Revenues by Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 29, 2017	Sep. 30, 2016
Net sales	$ 45,064	$ 35,835
Manufacturing segment net income (loss)	3,392	(2,696)
Corporate, Non-Segment [Member]
Manufacturing segment net income (loss)	(2,344)	(1,547)
Manufacturing Segment [Member] | Operating Segments [Member]
Net sales	39,872	30,499
Manufacturing segment net income (loss)	5,067	(1,420)
Manufacturing Segment [Member] | Intersegment Eliminations [Member]
Net sales	(10,332)	(8,126)
Distribution Segment [Member] | Operating Segments [Member]
Net sales	17,662	15,395
Manufacturing segment net income (loss)	669	271
Distribution Segment [Member] | Intersegment Eliminations [Member]
Net sales	$ (2,138)	$ (1,933)