Note I - Goodwill and Other Intangibles - Goodwill Rollforward (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 27, 2019	Jun. 30, 2019
Balance, goodwill gross carrying amount	$ 39,776
Balance, goodwill accumulated impairment	(13,822)	$ (13,822)
Balance, goodwill net book value	25,954
Translation adjustment, goodwill gross carrying amount	(393)
Translation adjustment, goodwill net book value	(393)
Balance, goodwill gross carrying amount	39,383
Balance, goodwill net book value	25,561
European Propulsion [Member]
Balance, goodwill net book value	23,371
Translation adjustment, goodwill gross carrying amount	(358)
Translation adjustment, goodwill net book value	(358)
Balance, goodwill net book value	23,013
European Industrial [Member]
Balance, goodwill net book value	2,583
Translation adjustment, goodwill gross carrying amount	(35)
Translation adjustment, goodwill net book value	(35)
Balance, goodwill net book value	$ 2,548