Note E - Business Segments - Net Sales by Product Group (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 29, 2024	Mar. 31, 2023	Mar. 29, 2024	Mar. 31, 2023
Net Sales	$ 74,161	$ 73,772	$ 210,709	$ 193,036
Intersegment Eliminations [Member]
Net Sales	(25,501)	(24,420)	(71,953)	(60,303)
Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	62,640	64,353	175,545	169,607
Manufacturing Segment [Member] | Intersegment Eliminations [Member]
Net Sales	(19,929)	(18,531)	(58,908)	(46,373)
Distribution Segment [Member] | Operating Segments [Member]
Net Sales	37,022	33,839	107,117	83,732
Distribution Segment [Member] | Intersegment Eliminations [Member]
Net Sales	(5,572)	(5,889)	(13,045)	(13,930)
Industrial [Member]
Net Sales	6,232	7,303	18,449	21,846
Industrial [Member] | Intersegment Eliminations [Member]
Net Sales	(631)	(1,321)	(1,994)	(3,208)
Industrial [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	5,779	7,076	16,773	20,732
Industrial [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	1,084	1,548	3,670	4,322
Land Based Transmissions [Member]
Net Sales	19,089	19,575	53,530	50,184
Land Based Transmissions [Member] | Intersegment Eliminations [Member]
Net Sales	(6,898)	(5,902)	(22,765)	(14,888)
Land Based Transmissions [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	16,701	16,785	46,385	48,329
Land Based Transmissions [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	9,286	8,692	29,910	16,743
Marine and Propulsion Systems [Member]
Net Sales	45,244	43,854	128,651	109,633
Marine and Propulsion Systems [Member] | Intersegment Eliminations [Member]
Net Sales	(17,968)	(16,505)	(47,166)	(40,751)
Marine and Propulsion Systems [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	40,160	40,492	112,387	100,546
Marine and Propulsion Systems [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	23,052	19,867	63,430	49,838
Other [Member]
Net Sales	3,596	3,040	10,079	11,373
Other [Member] | Intersegment Eliminations [Member]
Net Sales	(4)	(692)	(28)	(1,456)
Other [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	0	0	0	0
Other [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	$ 3,600	$ 3,732	$ 10,107	$ 12,829