Note H - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 27, 2020	Mar. 29, 2019	Mar. 27, 2020	Mar. 29, 2019	Jun. 30, 2019
Effective Income Tax Rate Reconciliation, Percent, Total			8.90%	24.60%
Effective Income Tax Rate Reconciliation, GILTI benefit, Percent			2.66%		0.67%
Effective Income Tax Rate Reconciliation, GILTI Inclusion, Amount			$ 5,310
Goodwill and Intangible Asset Impairment, Total	$ 27,603		$ 27,603
Effective Income Tax Rate Reconciliation, Goodwill and Intangible Assets Impairment, Percent			13.79%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 1,121		$ 1,121
Foreign Tax Authority [Member]
Open Tax Year			2013 2014 2015 2016 2017 2018 2019
Foreign Tax Authority [Member] | Tax and Customs Administration, Netherlands [Member]
Open Tax Year			2019