Organization and Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Sep. 26, 2017	Sep. 27, 2016
Organization And Summary Of Significant Accounting Policies [Line Items]
Advertising expenses	$ 365,000	$ 377,000
FDIC insured limit	250,000
Goodwill	15,150,000	15,076,000
Asset impairment costs	219,000	0
Deferred rent	1,649,000
Lease incentive obligation	3,800,000
Deferred and other liabilities	5,614,000	3,938,000
Other long term liabilities	10,000
Deferred gain on sale of building and improvements	155,000
Notes receivable	59,000
Receivables	573,000	425,000
Franchise receivables	68,000
Lease incentive	344,000
Receivable from advertising cooperative fund	161,000
Proceeds from sale leaseback transaction	1,390,000
Assets held for sale	$ 1,221,000	$ 93,000
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	51.00%
Four of Bad Daddy's limited liability companies [Member] | Maximum [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Ownership interest	53.00%
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	796,961	766,999