Note H - Segment Information - Operating Results by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		105 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022	Sep. 25, 2031
Net sales	$ 32,699	$ 42,373	$ 118,121	$ 118,440	$ 32,699
Income from operations	(2,488)	3,274	1,539	9,903	$ (2,488)
Operating Segments [Member]
Income from operations	(453)	5,418	7,749	16,271
Corporate, Non-Segment [Member]
Income from operations	(2,035)	(2,144)	(6,210)	(6,368)
Private Label Contract Manufacturing [Member]
Net sales	30,354	37,623	112,969	104,894
Private Label Contract Manufacturing [Member] | Operating Segments [Member]
Income from operations	(1,243)	3,605	6,264	10,065
Patent and Trademark Licensing [Member]
Net sales	2,345	4,750	5,152	13,546
Patent and Trademark Licensing [Member] | Operating Segments [Member]
Income from operations	$ 790	$ 1,813	$ 1,485	$ 6,206