Consolidated Statements of Shareholders’ Equity (Unaudited) - USD ($) $ in Thousands	Treasury Stock, at cost	Common Stock	Capital Contributed in Excess of Par Value	Non- Controlling Interest In Partnerships	Accumulated Deficit	Total
BALANCES at Sep. 26, 2023	$ (4,908)	$ 13	$ 56,701	$ 423	$ (19,235)	$ 32,994
BALANCES (in Shares) at Sep. 26, 2023	1,530,846
BALANCES (in Shares) at Sep. 26, 2023		11,446,587
Stock-based compensation cost			38			38
Treasury Shares Purchased	$ (438)					(438)
Treasury Shares Purchased (in Shares)	160,772	(160,772)
Income (loss)				73		73
Distributions				(29)		(29)
Net income (loss) attributable to Good Times Restaurants Inc and comprehensive income					(556)	(556)
BALANCES at Dec. 26, 2023	$ (5,346)	$ 13	56,739	467	(19,791)	32,082
BALANCES (in Shares) at Dec. 26, 2023	1,691,618
BALANCES (in Shares) at Dec. 26, 2023		11,285,815
BALANCES at Sep. 26, 2023	$ (4,908)	$ 13	56,701	423	(19,235)	32,994
BALANCES (in Shares) at Sep. 26, 2023	1,530,846
BALANCES (in Shares) at Sep. 26, 2023		11,446,587
Income (loss)						135
Net income (loss) attributable to Good Times Restaurants Inc and comprehensive income						62
BALANCES at Mar. 26, 2024	$ (5,992)	$ 13	56,779	508	(19,173)	32,135
BALANCES (in Shares) at Mar. 26, 2024	1,944,114
BALANCES (in Shares) at Mar. 26, 2024		11,033,319
BALANCES at Dec. 26, 2023	$ (5,346)	$ 13	56,739	467	(19,791)	32,082
BALANCES (in Shares) at Dec. 26, 2023	1,691,618
BALANCES (in Shares) at Dec. 26, 2023		11,285,815
Stock-based compensation cost			40			40
Treasury Shares Purchased	$ (646)					(646)
Treasury Shares Purchased (in Shares)	252,496	(252,496)
Income (loss)				62		62
Distributions				(21)		(21)
Net income (loss) attributable to Good Times Restaurants Inc and comprehensive income					618	618
BALANCES at Mar. 26, 2024	$ (5,992)	$ 13	56,779	508	(19,173)	32,135
BALANCES (in Shares) at Mar. 26, 2024	1,944,114
BALANCES (in Shares) at Mar. 26, 2024		11,033,319
BALANCES at Sep. 24, 2024	$ (6,855)	$ 13	56,835	717	(17,622)	$ 33,088
BALANCES (in Shares) at Sep. 24, 2024	2,265,066					2,265,066
BALANCES (in Shares) at Sep. 24, 2024		10,712,367
Stock-based compensation cost			35			$ 35
Repurchases of common stock	$ (164)					(164)
Repurchases of common stock (in Shares)	59,125	59,125
Repurchases of common stock (in Shares)	(59,125)	(59,125)
Income (loss)				10		10
Distributions				(42)		(42)
Net income (loss) attributable to Good Times Restaurants Inc and comprehensive income					164	164
BALANCES at Dec. 31, 2024	$ (7,019)	$ 13	56,870	685	(17,458)	33,091
BALANCES (in Shares) at Dec. 31, 2024	2,324,191
BALANCES (in Shares) at Dec. 31, 2024		10,653,242
BALANCES at Sep. 24, 2024	$ (6,855)	$ 13	56,835	717	(17,622)	$ 33,088
BALANCES (in Shares) at Sep. 24, 2024	2,265,066					2,265,066
BALANCES (in Shares) at Sep. 24, 2024		10,712,367
Income (loss)						$ 7
Net income (loss) attributable to Good Times Restaurants Inc and comprehensive income						(460)
BALANCES at Apr. 01, 2025	$ (7,158)	$ 13	56,842	677	(18,082)	$ 32,292
BALANCES (in Shares) at Apr. 01, 2025	2,379,026					2,379,026
BALANCES (in Shares) at Apr. 01, 2025		10,598,407
BALANCES at Dec. 31, 2024	$ (7,019)	$ 13	56,870	685	(17,458)	$ 33,091
BALANCES (in Shares) at Dec. 31, 2024	2,324,191
BALANCES (in Shares) at Dec. 31, 2024		10,653,242
Stock-based compensation cost			30			30
Cash-settled restricted stock units			(58)			(58)
Repurchases of common stock	$ (139)					(139)
Repurchases of common stock (in Shares)	54,835	54,835
Repurchases of common stock (in Shares)	(54,835)	(54,835)
Income (loss)				(3)		(3)
Distributions				(5)		(5)
Net income (loss) attributable to Good Times Restaurants Inc and comprehensive income					(624)	(624)
BALANCES at Apr. 01, 2025	$ (7,158)	$ 13	$ 56,842	$ 677	$ (18,082)	$ 32,292
BALANCES (in Shares) at Apr. 01, 2025	2,379,026					2,379,026
BALANCES (in Shares) at Apr. 01, 2025		10,598,407