Note E - Business Segments - Net Sales by Product Group (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 27, 2024	Sep. 29, 2023
Net Sales	$ 72,897	$ 63,554
Intersegment Eliminations [Member]
Net Sales	(20,004)	(23,836)
Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	63,318	54,537
Manufacturing Segment [Member] | Intersegment Eliminations [Member]
Net Sales	(13,372)	(20,184)
Distribution Segment [Member] | Operating Segments [Member]
Net Sales	29,583	32,853
Distribution Segment [Member] | Intersegment Eliminations [Member]
Net Sales	(6,632)	(3,652)
Industrial [Member]
Net Sales	9,169	5,684
Industrial [Member] | Intersegment Eliminations [Member]
Net Sales	(681)	(634)
Industrial [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	8,797	5,290
Industrial [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	1,053	1,028
Land Based Transmissions [Member]
Net Sales	17,284	18,578
Land Based Transmissions [Member] | Intersegment Eliminations [Member]
Net Sales	(4,432)	(8,774)
Land Based Transmissions [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	18,153	14,681
Land Based Transmissions [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	3,563	12,671
Marine and Propulsion Systems [Member]
Net Sales	42,100	36,464
Marine and Propulsion Systems [Member] | Intersegment Eliminations [Member]
Net Sales	(14,578)	(14,422)
Marine and Propulsion Systems [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	36,347	34,566
Marine and Propulsion Systems [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	20,331	16,320
Other [Member]
Net Sales	4,344	2,828
Other [Member] | Intersegment Eliminations [Member]
Net Sales	(313)	(6)
Other [Member] | Manufacturing Segment [Member] | Operating Segments [Member]
Net Sales	21	0
Other [Member] | Distribution Segment [Member] | Operating Segments [Member]
Net Sales	$ 4,636	$ 2,834