Note G - Segment Information - Operating Results by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Net sales	$ 25,135	$ 30,006	$ 89,761	$ 78,502
Income from Operations	993	3,105	7,642	7,568
Operating Segments [Member]
Income from Operations	2,535	4,665	12,208	11,958
Corporate, Non-Segment [Member]
Income from Operations	(1,542)	(1,560)	(4,566)	(4,390)
Private Label Contract Manufacturing [Member]
Net sales	18,544	24,493	69,787	62,377
Private Label Contract Manufacturing [Member] | Operating Segments [Member]
Income from Operations	749	2,915	6,182	7,518
Patent and Trademark Licensing [Member]
Net sales	6,591	5,513	19,974	16,125
Patent and Trademark Licensing [Member] | Operating Segments [Member]
Income from Operations	$ 1,786	$ 1,750	$ 6,026	$ 4,440