Income Taxes Disclosure [Line Items]

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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- Definition

Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

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- Definition

Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
Income Taxes (Narrative) (Details) - USD ($)	Nov. 24, 2018	Nov. 25, 2017	Nov. 24, 2018	Nov. 25, 2017	Dec. 31, 2018	May 26, 2018	Dec. 31, 2017
Income Taxes Disclosure [Line Items]
Statutory tax rate							35.00%
Remeasurement of deferred tax assets and liabilities, income tax benefit						$ 800,000
Provision for income taxes	$ 5,141,000	$ 2,149,000	$ 8,635,000	$ 5,071,000
Effective tax rate	33.00%	21.00%	35.00%	33.00%
Reversal of liability for uncertain tax position	$ 0	$ 2,400,000
Tax benefit related to stock-based compensation	$ 100,000	$ 200,000	$ 0	$ 600,000
Scenario, Plan [Member]
Income Taxes Disclosure [Line Items]
Statutory tax rate					21.00%