Employee Benefit Plans (Liability For Post Retirement Benefits) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 25, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Current liabilities of discontinued operations	$ 21	$ 19
Long-term liabilities of discontinued operations	358	377
Total liability	$ 379	$ 396

Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=123453770&loc=d3e1703-114919

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant