Note H - Income Taxes (Details Textual) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2023	Mar. 31, 2023	Mar. 25, 2022
Effective Income Tax Rate Reconciliation, Percent		54.30%	76.50%
Effective Income Tax Rate Reconciliation, Differences of Foreign Earnings By Jurisdictions, Percent	22.20%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 810	$ 810
Unrecognized Tax Benefits, Income Tax Penalties Accrued	$ 53	$ 53
Foreign Tax Authority [Member]
Open Tax Year		2014 2015 2016 2017 2018 2019 2020 2021
Foreign Tax Authority [Member] | Tax and Customs Administration, Netherlands [Member]
Open Tax Year		2018
Domestic Tax Authority [Member]
Open Tax Year		2018 2019 2020 2021 2022