Note H - Segment Information - Operating Results by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Net Sales	$ 33,150	$ 33,969
Income from operations	(1,836)	(544)
Operating Segments [Member]
Income from operations	352	1,454
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Income from operations	(2,188)	(1,998)
Private Label Contract Manufacturing [Member]
Net Sales	30,630	32,189
Private Label Contract Manufacturing [Member] | Operating Segments [Member]
Income from operations	(645)	1,011
Patent and Trademark Licensing [Member]
Net Sales	2,520	1,780
Patent and Trademark Licensing [Member] | Operating Segments [Member]
Income from operations	$ 997	$ 443