Note H - Income Taxes (Details Textual) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Dec. 25, 2020	Dec. 27, 2019	Jun. 30, 2019
Effective Income Tax Rate Reconciliation, Percent, Total	30.30%	4.30%
Effective Income Tax Rate Reconciliation, GILTI benefit, Percent	9.00%		18.60%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 926
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

Represents percentage of GILTI benefit for effective income tax rate reconciliation.

No definition available.

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

+ Details

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- Definition

Tax year that remains open to examination under enacted tax laws, in CCYY format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

+ Details

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- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319

+ Details

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- Details

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- Details

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