Property and Equipment, Intangible Assets and Goodwill (Details Textual) - USD ($)	12 Months Ended
	Aug. 26, 2020	Aug. 28, 2019
Property, Plant and Equipment [Line Items]
Depreciation	$ 10,100,000	$ 12,600,000
Amortization expense related to intangible assets	1,400,000	1,400,000
Aggregate amortization expense, year one	1,400,000
Aggregate amortization expense, year two	1,400,000
Aggregate amortization expense, year three	1,400,000
Aggregate amortization expense, year four	1,400,000
Aggregate amortization expense, year five	1,400,000
Accumulated impairments	2,000,000.0	1,700,000
Goodwill	195,000	514,000
Impairment of goodwill	320,000	41,000
Continuing Operations
Property, Plant and Equipment [Line Items]
Impairment of goodwill	0
Fair Value, Measurements, Nonrecurring | Continuing Operations
Property, Plant and Equipment [Line Items]
Goodwill	300,000	600,000
Impairment of goodwill	320,000	$ 41,000
Fair Value, Measurements, Nonrecurring | Continuing Operations | Cheeseburger in Paradise restaurants
Property, Plant and Equipment [Line Items]
Impairment of goodwill	$ 300,000
Fuddruckers brand name
Property, Plant and Equipment [Line Items]
Intangible asset useful life (years)	21 years
Franchise agreements
Property, Plant and Equipment [Line Items]
Intangible asset useful life (years)	21 years
Intangible assets related to Cheeseburger in Paradise
Property, Plant and Equipment [Line Items]
Intangible asset useful life (years)	15 years