Note H - Segment Information - Operating Results by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Net Sales	$ 28,766	$ 25,136	$ 95,994	$ 84,307
(Loss) income from operations	(2,100)	(1,952)	(6,716)	(6,009)
Operating Segments [Member]
(Loss) income from operations	178	194	89	225
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
(Loss) income from operations	(2,278)	(2,146)	(6,805)	(6,234)
Private Label Contract Manufacturing [Member]
Net Sales	27,075	22,479	90,021	77,718
Private Label Contract Manufacturing [Member] | Operating Segments [Member]
(Loss) income from operations	(556)	(1,007)	(2,356)	(2,367)
Patent and Trademark Licensing [Member]
Net Sales	1,691	2,657	5,973	6,589
Patent and Trademark Licensing [Member] | Operating Segments [Member]
(Loss) income from operations	$ 734	$ 1,201	$ 2,445	$ 2,592