Organization and Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Sep. 25, 2018	Sep. 26, 2017
Organization And Summary Of Significant Accounting Policies [Line Items]
Advertising expenses	$ 342,000	$ 365,000
Due from non controlling interest	355,000
FDIC insured limit	250,000
Goodwill	15,150,000	15,150,000
Asset impairment costs	72,000	219,000
Deferred rent	2,253,000
Lease incentive obligation	5,309,000
Deferred and other liabilities	7,922,000	5,614,000
Other long term liabilities	8,000
Deferred gain on sale of building and improvements	351,000
Notes receivable	46,000
Receivables	1,735,000	573,000
Franchise receivables	84,000
Lease incentive	1,014,000
Receivable from advertising cooperative fund	282,000
Proceeds from sale leaseback transaction	1,397,000	1,927,000
Assets held for sale		$ 1,221,000
Expected fair value of future lease costs	$ 48,000
Minimum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives	3 years
Maximum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives	8 years
Four of Bad Daddy's limited liability companies [Member] | Minimum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Ownership interest	50.00%
Four of Bad Daddy's limited liability companies [Member] | Maximum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Ownership interest	58.00%
One of Bad Daddy's limited liability companies [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Ownership interest	23.00%
Bad Daddy's International, LLC [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Goodwill	$ 15,054,000
Good Times Drive Thru Inc. [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Goodwill	$ 96,000
Stock Options [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Shares with anti-dilutive effect excluded from the computation of Diluted EPS	784,261	796,961