Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Treasury Stock	Common Stock [Member]	Capital Contributed in Excess of Par Value [Member]	Non-Controlling Interest In Partnerships [Member]	Accumulated Deficit [Member]	Total
BALANCES at Sep. 25, 2018		$ 12	$ 59,385	$ 3,238	$ (25,414)	$ 37,221
BALANCES, shares at Sep. 25, 2018		12,481,162
Stock-based compensation cost			112			112
Restricted stock unit vesting		$ 1				1
Restricted stock grant vesting, shares		40,949
Stock option exercise			3			$ 3
Stock option exercise, shares		667				667
Non-controlling interests:
Income				309		$ 309
Contributions
Distributions				(478)		(478)
Net loss attributable to Good Times Restaurants Inc and comprehensive loss					(1,051)	(1,051)
BALANCES at Dec. 25, 2018		$ 13	59,500	3,069	(26,465)	36,117
BALANCES, shares at Dec. 25, 2018		12,522,778
BALANCES at Sep. 24, 2019		$ 13	57,936	1,522	(30,551)	28,920
BALANCES, shares at Sep. 24, 2019		12,541,082
Stock-based compensation cost			74			74
Restricted stock unit vesting
Restricted stock grant vesting, shares		76,643
Stock option exercise
Stock option exercise, shares		2,413				15,646
Non-controlling interests:
Treasury shares purchased	$ (75)					$ (75)
Treasury shares purchased, shares	43,110	(43,110)
Income				212		212
Contributions				22		22
Distributions				(291)		(291)
Net loss attributable to Good Times Restaurants Inc and comprehensive loss					(811)	(811)
BALANCES at Dec. 31, 2019	$ (75)	$ 13	$ 58,010	$ 1,465	$ (31,362)	$ 28,051
BALANCES, shares at Dec. 31, 2019	43,110	12,577,028