Reportable Segments (Details Textual)	6 Months Ended
	Mar. 15, 2017 manager contract segment restaurant mi	Apr. 24, 2017 restaurant	Aug. 31, 2016 contract restaurant
Segment Reporting Information [Line Items]
Number of reportable segments | segment	3
Company-owned restaurants [Member]
Segment Reporting Information [Line Items]
Number of restaurants	173		175
Culinary contract services [Member]
Segment Reporting Information [Line Items]
Number of CCS locations | contract	23		24
Franchise operations [Member]
Segment Reporting Information [Line Items]
Number of restaurants	114		113
Franchise term	20 years
Radius of exclusive territorial license of franchisee | mi	4
Minimum number of managers to successfully complete training | manager	3
Subsequent Event [Member] | Licensee [Member]
Segment Reporting Information [Line Items]
Number of restaurants		35