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Income Taxes - (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 29, 2021	Dec. 30, 2020	Dec. 25, 2019
Valuation Allowance [Line Items]
Expense from disallowed compensation deductions	$ 1,300,000	$ 1,000,000
Income tax refunds	1,500,000
Net operating loss carryback		900,000
Tax expense (benefit) recognized related to share-based compensation			$ (2,000,000)
Benefit from income tax examination			(2,000,000)
Net operating loss carryforwards - state	1,429,000	5,888,000
Change in valuation allowance	5,031,000	3,041,000	$ 2,935,000
Valuation allowance	2,192,000	7,223,000
Interest and penalties recognized on unrecognized tax benefits	0	$ 0
South Carolina NOL Carryforwards
Valuation Allowance [Line Items]
Net operating loss carryforwards - state	1,000,000
Valuation allowance	700,000
State Enterprise Zone Credits
Valuation Allowance [Line Items]
Valuation allowance	900,000
Foreign Tax Credit Carryforward
Valuation Allowance [Line Items]
Valuation allowance	$ 500,000

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