Property and Equipment, Intangible Assets and Goodwill (Details Textual) $ in Thousands	3 Months Ended				6 Months Ended
	Mar. 15, 2017 USD ($) location	Mar. 09, 2016 USD ($)	Feb. 11, 2015 USD ($)	Feb. 12, 2014 USD ($)	Mar. 15, 2017 USD ($) location	Mar. 09, 2016 USD ($)	Aug. 31, 2016 USD ($)	Aug. 28, 2013 USD ($)	Aug. 25, 2010 USD ($)
Property, Plant and Equipment [Line Items]
Amortization of intangible assets					$ 800	$ 800
Intangible assets amortization expense, 2017	$ 1,400				1,400
Intangible assets amortization expense, 2018	1,400				1,400
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
Goodwill, accumulated impairment loss	1,100				1,100		$ 1,100
Goodwill	1,068				$ 1,068		$ 1,605
Cheeseburger in Paradise [Member]
Property, Plant and Equipment [Line Items]
Goodwill, impairment loss	$ 537	$ 38	$ 38	$ 488
Number of restaurants acquired | location					23
Number of restaurants closed for conversion | location					8
Number of restaurants | location	6				6
Number of restaurants not closed to be converted | location					3
Number of locations subleased | location					3
Number of restaurants closed for disposal | location					3
Fuddruckers [Member]
Property, Plant and Equipment [Line Items]
Goodwill, gross									$ 200
Cheeseburger in Paradise [Member]
Property, Plant and Equipment [Line Items]
Goodwill, gross								$ 2,000
Fuddruckers Brand Name [Member]
Property, Plant and Equipment [Line Items]
Intangible assets, net, estimated useful lives					21 years
Franchise Rights [Member]
Property, Plant and Equipment [Line Items]
Intangible assets, net, estimated useful lives					21 years
Intangible Assets Related to Cheeseburger in Paradise [Member]
Property, Plant and Equipment [Line Items]
Intangible assets, net, estimated useful lives					15 years