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Impairment of Long-Lived Assets and Goodwill (Details) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
	Apr. 22, 2018 USD ($)	Jan. 30, 2018 USD ($)	Mar. 27, 2018 USD ($)	Mar. 28, 2017 USD ($)	Mar. 27, 2018 USD ($) restaurants	Mar. 28, 2017 USD ($)	Sep. 26, 2017 USD ($)
Impaired Long-Lived Assets Held and Used [Line Items]
Number of restaurants impaired | restaurants					0
Goodwill			$ 15,150		$ 15,150		$ 15,150
Non-cash impairment charge		$ 219	72	$ 0	72	$ 0
Loss from disposal of assets		0
Rent expense		$ 48
Subsequent Event [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Non-cash impairment charge	$ 72
Loss from disposal of assets	$ 0
Good Times Drive Thru Inc. [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Goodwill			96		96
Bad Daddy's Franchise Development, LLC [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Goodwill			$ 15,054		$ 15,054

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Number Of Restaurants Impaired

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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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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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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