Note H - Segment Information - Operating Results by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Net sales	$ 37,727	$ 48,083	$ 76,067	$ 87,809
Income from operations	2,401	5,392	6,629	7,477
Operating Segments [Member]
Income from operations	4,518	7,372	10,854	11,469
Corporate, Non-Segment [Member]
Income from operations	(2,117)	(1,980)	(4,225)	(3,992)
Private Label Contract Manufacturing [Member]
Net sales	33,677	45,326	67,271	82,373
Private Label Contract Manufacturing [Member] | Operating Segments [Member]
Income from operations	2,761	6,843	6,461	10,270
Patent and Trademark Licensing [Member]
Net sales	4,050	2,757	8,796	5,436
Patent and Trademark Licensing [Member] | Operating Segments [Member]
Income from operations	$ 1,757	$ 529	$ 4,393	$ 1,199