Note H - Segment Information - Operating Results by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Net sales	$ 43,127	$ 38,340
Income from operations	1,542	4,228
Operating Segments [Member]
Income from operations	3,591	6,366
Corporate, Non-Segment [Member]
Income from operations	(2,049)	(2,108)
Private Label Contract Manufacturing [Member]
Net sales	41,776	33,594
Private Label Contract Manufacturing [Member] | Operating Segments [Member]
Income from operations	3,244	3,700
Patent and Trademark Licensing [Member]
Net sales	1,351	4,746
Patent and Trademark Licensing [Member] | Operating Segments [Member]
Income from operations	$ 347	$ 2,636