Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Treasury Stock, Common [Member]	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Noncontrolling Interest [Member]	Retained Earnings [Member]	Total
BALANCES (in shares) at Sep. 27, 2022	692,798	12,274,351
BALANCES at Sep. 27, 2022	$ (2,634)	$ 13	$ 59,427	$ 1,303	$ (30,321)	$ 27,788
Stock-based compensation cost	$ 0	$ 0	46	0	0	46
Restricted stock unit vesting (in shares)	0	8,284
Restricted stock unit vesting	$ 0	$ 0	(92)	0	0	$ (92)
Stock option exercise (in shares)	0	2,000				2,000
Stock option exercise	$ 0	$ 0	5	0	0	$ 5
Treasury shares purchased (in shares)	371,395	(371,395)
Treasury shares purchased	$ (873)	$ 0	0	0	0	(873)
Income attributable to non-controlling interests	0	0	0	222	0	222
Distributions	0	0	0	(172)	0	(172)
Contributions from unrelated limited partners	0	0	0	13	0	13
Net loss attributable to Good Times Restaurants Inc and comprehensive loss	$ 0	$ 0	0	0	(127)	(127)
BALANCES (in shares) at Dec. 27, 2022	1,064,193	11,913,240
BALANCES at Dec. 27, 2022	$ (3,507)	$ 13	59,386	1,366	(30,448)	26,810
BALANCES (in shares) at Sep. 26, 2023	1,530,846	11,446,587
BALANCES at Sep. 26, 2023	$ (4,908)	$ 13	56,701	423	(19,235)	32,994
Stock-based compensation cost	$ 0	$ 0	38	0	0	$ 38
Stock option exercise (in shares)						0
Treasury shares purchased (in shares)	160,772	(160,772)
Treasury shares purchased	$ (438)	$ 0	0	0	0	$ (438)
Income attributable to non-controlling interests	0	0	0	73	0	73
Distributions	0	0	0	(29)	0	(29)
Net loss attributable to Good Times Restaurants Inc and comprehensive loss	$ 0	$ 0	0	0	(556)	(556)
BALANCES (in shares) at Dec. 26, 2023	1,691,618	11,285,815
BALANCES at Dec. 26, 2023	$ (5,346)	$ 13	$ 56,739	$ 467	$ (19,791)	$ 32,082