Debt - Future Principle and Interest Payments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 25, 2021
Debt Instrument [Line Items]
Principal, 2022	$ 1,050
Principal, 2023	1,080
Principal, 2024	1,111
Principal, 2025	1,142
Principal, 2026	1,175
Principal, 2027 and thereafter	9,941
Principal, total	15,499	$ 24,435
Interest, 2022	894
Interest, 2023	835
Interest, 2024	763
Interest, 2025	699
Interest, 2026	630
Interest, 2027 and thereafter	2,324
Interest, total	6,145
Total payments, 2022	1,944
Total payments, 2023	1,915
Total payments, 2024	1,874
Total payments, 2025	1,841
Total payments, 2026	1,805
Total payments, 2027 and thereafter	12,265
Long-term debt, maturities, total payments due	21,644
Building Term Loan
Debt Instrument [Line Items]
Principal, total	$ 15,500
Interest rate at period end	5.87%

Long Term Debt, Maturities, Payments Of Interest, Due After Year Five

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Long Term Debt, Maturities, Payments Of Interest, Due Year Three

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Long-Term Debt, Maturities, Total Payment Due Next Twelve Months

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The effective interest rate at the end of the reporting period.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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