Property and Equipment, Intangible Assets and Goodwill - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 13, 2019	Mar. 13, 2019	Mar. 14, 2018	Aug. 29, 2018
Property, Plant and Equipment [Line Items]
Sale leaseback net sales price		$ 19,600
Total net gain on leaseback sale	$ 15,300	15,300
Amortization of intangible assets		700	$ 700
Intangible assets amortization expense, 2019	1,400	1,400
Intangible assets amortization expense, 2020	1,400	1,400
Intangible assets amortization expense, 2021	1,400	1,400
Intangible assets amortization expense, 2022	1,400	1,400
Intangible assets amortization expense, 2023	1,400	1,400
Goodwill, accumulated impairment loss	1,900	1,900		$ 1,900
Goodwill	$ 555	555		$ 555
Goodwill, impairment charges		$ 0	$ 0
Fuddruckers Brand Name
Property, Plant and Equipment [Line Items]
Intangible assets, net, estimated useful lives		21 years
Franchise Rights
Property, Plant and Equipment [Line Items]
Intangible assets, net, estimated useful lives		21 years
Intangible Assets Related to Cheeseburger in Paradise
Property, Plant and Equipment [Line Items]
Intangible assets, net, estimated useful lives		15 years
Sale Leaseback Property One
Property, Plant and Equipment [Line Items]
Leaseback period	36 months
Leaseback, annual rental payments	$ 450
Sale Leaseback Property Two
Property, Plant and Equipment [Line Items]
Leaseback period	60 months
Leaseback, annual rental payments	$ 295