Annual report pursuant to Section 13 and 15(d)

Income Taxes (Narrative) (Details)

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Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 25, 2022
Dec. 26, 2021
Income Tax Contingency [Line Items]    
Deferred Tax Assets, Tax Credit Carryforwards, General Business $ 26,977 $ 25,200
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%  
Minimum    
Income Tax Contingency [Line Items]    
Loss Contingency, Estimate of Possible Loss $ 500  
Maximum    
Income Tax Contingency [Line Items]    
Loss Contingency, Estimate of Possible Loss $ 2,500