Fair Value Measurements (Fair Value Measurements - Carrying Amount and Fair Value) (Details) - USD ($) $ in Thousands	Mar. 26, 2022	Dec. 25, 2021
Financial liabilities:
Finance leases, including current portion	$ 13,424	$ 13,787
Carrying Amount
Financial assets:
Cash and cash equivalents	902	1,471
Financial liabilities:
Long-term debt, including current portion	67,449	63,275
Finance leases, including current portion	13,424	13,787
Interest rate swaps	0	210
Fair Value
Financial assets:
Cash and cash equivalents	902	1,471
Financial liabilities:
Long-term debt, including current portion	66,101	61,721
Finance leases, including current portion	15,012	16,389
Interest rate swaps	$ 0	$ 210

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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