Note N - Restructuring of Operations and Other Operating Income (Details Textual) $ in Thousands		3 Months Ended		9 Months Ended		46 Months Ended
	Mar. 04, 2019 USD ($)	Mar. 29, 2019 USD ($)	Mar. 30, 2018 USD ($)	Mar. 29, 2019 USD ($)	Mar. 30, 2018 USD ($)	Mar. 29, 2019 USD ($)	Jul. 02, 2018 USD ($)
Restructuring Charges, Total		$ 131	$ 452	$ 738	$ 2,501	$ 10,011
Restructuring and Related Cost, Number of Positions Eliminated						176
Proceeds from Sales of Business, Affiliate and Productive Assets				5,158
Veth Propulsion [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High							$ 3,700
Business Combination, Contingent Consideration, Liability, Total		2,320		2,320		$ 2,320
Other Operating Income (Expense) [Member] | Veth Propulsion [Member]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		(492)		(492)
Mill Log Business [Member] | Discontinued Operations, Disposed of by Sale [Member]
Disposal Group, Including Discontinued Operation, Operating Income (Loss)		(1,968)	$ 421	(1,636)	$ 901
Disposal Group, Including Discontinued Operation, Inventory	$ 6,298
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current	495
Disposal Group, Including Discontinued Operation, Consideration	7,658
Proceeds from Sales of Business, Affiliate and Productive Assets	5,158
Disposal Group, Including Discontinued Operation, Consideration, Receivable	$ 2,500
Mill Log Business [Member] | Discontinued Operations, Disposed of by Sale [Member] | Other Operating Income (Expense) [Member]
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax, Total		$ 865		$ 865