Note I - Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 25, 2022	Mar. 26, 2021	Mar. 25, 2022	Mar. 26, 2021
Balance, Definite Intangible Assets Gross Carrying Amount			$ 41,142
Balance, Definite Intangible Assets Accumulated Amortization/Impairment			(23,662)
Balance, Definite Intangible Assets Net Book Value			17,480
Addition, Definite Intangible Assets Gross Carrying Amount			9
Addition			9
Amortization, Intangible Asset	$ (785)	$ (838)	(2,415)	$ (2,516)
Translation adjustment, Definite Intangible Assets Gross Carrying Amount			(1,130)
Translation adjustment, Definite Intangible Assets Net Book Value			(1,130)
Balance, Definite Intangible Assets Gross Carrying Amount	40,021		40,021
Balance, Definite Intangible Assets Accumulated Amortization/Impairment	(26,077)		(26,077)
Balance, Definite Intangible Assets Net Book Value	13,944		13,944
Customer Relationships [Member]
Balance, Definite Intangible Assets Net Book Value			10,321
Addition			0
Amortization, Intangible Asset			(1,225)
Translation adjustment, Definite Intangible Assets Net Book Value			(707)
Balance, Definite Intangible Assets Net Book Value	8,389		8,389
Technology-Based Intangible Assets [Member]
Balance, Definite Intangible Assets Net Book Value			4,883
Addition			0
Amortization, Intangible Asset			(888)
Translation adjustment, Definite Intangible Assets Net Book Value			(321)
Balance, Definite Intangible Assets Net Book Value	3,674		3,674
Trade Names [Member]
Balance, Definite Intangible Assets Net Book Value			1,282
Addition			0
Amortization, Intangible Asset			(133)
Translation adjustment, Definite Intangible Assets Net Book Value			(89)
Balance, Definite Intangible Assets Net Book Value	1,060		1,060
Other Intangible Assets [Member]
Balance, Definite Intangible Assets Net Book Value			994
Addition			9
Amortization, Intangible Asset			(169)
Translation adjustment, Definite Intangible Assets Net Book Value			(13)
Balance, Definite Intangible Assets Net Book Value	$ 821		$ 821