Organization and Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 10, 2021	Mar. 31, 2020	Jun. 29, 2020	Sep. 28, 2021	Sep. 29, 2020	Aug. 13, 2021
Organization And Summary Of Significant Accounting Policies [Line Items]
Advertising expenses				$ 278	$ 244
FDIC insured limit				250
Goodwill				5,150	5,150
Goodwill impairment loss					10,000
Deferred liability					$ 1,200
Percentage of deferred employment tax					50.00%
Notes receivable				0	$ 13
Receivables				644	656
Franchise receivables				142	77
Lease incentive				85	338
Receivable from advertising cooperative fund				417	241
Deferred tax assets				0
Income tax provision or benefit				$ 6
Effective income tax rate				0.00%	0.00%
Maximum number of common stock shares that could be repurchased through Tender Offer						1,413,000
Maximum number of common stock shares that could be repurchased through Tender Offer, purchase price per share						$ 4.60
Number of shares repurchased through Tender Offer	333,241
Purchase price of shares repurchased through Tender Offer	$ 4.60
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]
Organization And Summary Of Significant Accounting Policies [Line Items]
Ownership interest				54.00%
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				75.00%
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				$ 5,054	$ 5,054
Goodwill impairment loss		$ 10,000
Asset impairment costs			$ 5,291
Good Times Drive Thru Inc. [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Goodwill				$ 96	$ 96