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Impairment of Long-Lived Assets and Goodwill (Narrative) (Details) $ in Thousands | 9 Months Ended |  |
--- | --- | --- | ---
Jun. 29, 2021 USD ($) restaurants | Jun. 30, 2020 USD ($) | Sep. 29, 2020 USD ($) | Sep. 29, 2019 USD ($)
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |
Number of restaurants impaired | restaurants | 2 |  |  |
Goodwill | $ 5,150 | $ 5,150 | $ 5,150 | $ 15,150
Bad Daddy's Restaurants In North Carolina and Tennessee [Member] |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |
Non-cash impairment charge |  | $ 5,291 |  |
Good Times [Member] |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |
Goodwill | 96 |  |  |
Bad Daddy's [Member] |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |
Goodwill | $ 5,054 |  |  |

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