Number of Underperforming Restaurant Locations

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- Definition

The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases.

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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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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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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Restaurant Closure Charges, Net - Additional Information (Details)	3 Months Ended	4 Months Ended	6 Months Ended
	Jun. 20, 2017 USD ($)	Dec. 29, 2015 location	Jun. 20, 2017 USD ($)	Jun. 14, 2016 USD ($)	Jan. 03, 2017 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring closure liability	$ 2,800,000		$ 2,800,000		$ 3,100,000
Current portion of restaurant closure liability	464,000		464,000		875,000
Non-current portion of restaurant closure liability	2,301,000		2,301,000		2,263,000
Charges for accretion in current period			85,000	$ (137,000)
Closure of 12 Underperforming Restaurants [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring closure liability	1,490,000		1,490,000		1,773,000
Current portion of restaurant closure liability	200,000		200,000		600,000
Non-current portion of restaurant closure liability	1,300,000		1,300,000
Number of underperforming locations \| location		12
Charges for accretion in current period			33,000
Sublease income	73,000
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring closure liability	1,275,000		1,275,000		1,365,000
Current portion of restaurant closure liability	300,000		300,000		300,000
Non-current portion of restaurant closure liability	$ 1,000,000		1,000,000		$ 1,100,000
Charges for accretion in current period			$ 51,000