Segment Reporting (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 29, 2020	Sep. 24, 2019
Segment Reporting Information [Line Items]
Revenues	$ 109,858	$ 110,755
Income (loss) from operations	(12,041)	(3,495)
Capital Expenditures	2,596	8,079
Property & Equipment, net	27,669	35,677
Bad Daddys Burger Bar Restaurant [Member]
Segment Reporting Information [Line Items]
Revenues	76,538	80,124
Income (loss) from operations	(14,837)	(2,788)
Capital Expenditures	2,351	7,016
Property & Equipment, net	23,586	30,479
Good Times Burgers And Frozen Custard Restaurants [Member]
Segment Reporting Information [Line Items]
Revenues	33,320	30,631
Income (loss) from operations	3,035	704
Capital Expenditures	212	993
Property & Equipment, net	3,874	4,890
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Income (loss) from operations	(239)	(1,411)
Capital Expenditures	33	70
Property & Equipment, net	$ 209	$ 308