Long-Term Debt and Credit Arrangements (Revolving Credit Facility) (Details) - USD ($)	12 Months Ended
Dec. 25, 2021	Dec. 26, 2020
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 75,000,000
Amended Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	0.75%
Basis spread on variable rate at end of period	0.75%
Commitment fee percentage (in percent)	0.25%
Weighted average interest rate (in percent)	3.00%	2.68%
Covenant period	30 days
Remaining borrowing capacity	$ 37,632,000
Amended Revolving Credit Facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate	1.75%
Minimum \| Amended Revolving Credit Facility
Debt Instrument [Line Items]
Borrowing capacity for covenant applicability (in percent)	12.50%
Minimum \| LIBOR \| Amended Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	1.50%
Minimum \| Daily LIBOR \| Amended Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Maximum \| Amended Revolving Credit Facility
Debt Instrument [Line Items]
Borrowing capacity for covenant applicability (in percent)	12.50%
Maximum \| LIBOR \| Amended Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	2.00%
Maximum \| Daily LIBOR \| Amended Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%

Line of Credit Facility, Borrowing Capacity For Financial Covenants Applicability

No definition available.

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- Definition

Line of Credit Facility, Covenant Period

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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