Impairment of Long-Lived Assets, Discontinued Operations, Property Held for Sale and Store Closings - Discontinued Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Mar. 13, 2019	Mar. 14, 2018	Mar. 13, 2019	Mar. 14, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from discontinued operations, net of income taxes	$ (8)	$ (110)	$ (13)	$ (145)
Effect on EPS from discontinued operations—basic (in dollars per share)	$ 0.00	$ (0.01)	$ 0.00	$ 0.00
Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operating loss			$ (13)	$ (8)
Impairments			0	0
Pretax loss			(13)	(8)
Income tax expense from discontinued operations			0	(137)
Loss from discontinued operations, net of income taxes			$ (13)	$ (145)
Effect on EPS from discontinued operations—basic (in dollars per share)			$ 0.00	$ 0.00

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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- Definition

Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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- Definition

Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.

+ References

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+ Details