Note 13 - Impairment of Long-lived Assets and Goodwill (Details Textual)	3 Months Ended
	Dec. 26, 2023 USD ($)	Dec. 27, 2022 USD ($)	Sep. 26, 2023 USD ($)
Number of Reporting Units	2
Goodwill	$ 5,713,000		$ 5,713,000
Good Times Restaurants [Member]
Goodwill	96,000	$ 96,000
Bad Daddy’s Restaurants [Member]
Goodwill	5,617,000	5,617,000
Trademarks [Member]
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)	0	0
Restaurant Assets [Member]
Impairment, Long-Lived Asset, Held-for-Use	$ 0	$ 0