Note H - Segment Information - Operating Results by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2023	Dec. 30, 2023	Dec. 31, 2022	Dec. 30, 2022	Dec. 31, 2023	Dec. 30, 2023	Dec. 31, 2022	Dec. 30, 2022
Net Sales	$ 25,202		$ 42,295		$ 59,171		$ 85,422
Income from operations	(3,513)	$ (3,513)	2,485	$ 2,485	(4,057)	$ (4,057)	4,027	$ 4,027
Operating Segments [Member]
Income from operations		(1,421)		4,613		31		8,204
Corporate, Non-Segment [Member]
Income from operations		(2,092)		(2,128)		(4,088)		(4,177)
Private Label Contract Manufacturing [Member]
Net Sales	23,050		40,839		55,239		82,615
Private Label Contract Manufacturing [Member] | Operating Segments [Member]
Income from operations		(2,368)		4,266		(1,360)		7,510
Patent and Trademark Licensing [Member]
Net Sales	$ 2,152		$ 1,456		$ 3,932		$ 2,807
Patent and Trademark Licensing [Member] | Operating Segments [Member]
Income from operations		$ 947		$ 347		$ 1,391		$ 694