Note H - Segment Information - Operating Results by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Net Sales	$ 33,969	$ 43,127
Income from operations	(544)	1,542
Operating Segments [Member]
Income from operations	1,454	3,591
Corporate, Non-Segment [Member]
Income from operations	(1,998)	(2,049)
Private Label Contract Manufacturing [Member]
Net Sales	32,189	41,776
Private Label Contract Manufacturing [Member] | Operating Segments [Member]
Income from operations	1,011	3,244
Patent and Trademark Licensing [Member]
Net Sales	1,780	1,351
Patent and Trademark Licensing [Member] | Operating Segments [Member]
Income from operations	$ 443	$ 347