BUSINESS SEGMENTS (Details) $ in Thousands	3 Months Ended						9 Months Ended
	Jul. 03, 2021 USD ($)	Apr. 03, 2021 USD ($)	Jan. 02, 2021 USD ($)	Jun. 27, 2020 USD ($)	Mar. 28, 2020 USD ($)	Dec. 28, 2019 USD ($)	Jul. 03, 2021 USD ($) Segments	Jun. 27, 2020 USD ($)	Oct. 03, 2020 USD ($)
Number of Reportable Segments | Segments							2
Operating Revenues:
Operating revenues	$ 37,935			$ 23,663			$ 103,672	$ 84,732
Income before corporate expenses	4,525			(206)			9,192	4,464
Corporate expenses, net of other revenues	(1,916)			(526)			2,520	(2,448)
Income (Loss) from operations	2,609			(732)			6,672	2,016
Interest expense	(210)			(196)			(737)	(598)
Interest and Other income	14			12			45	37
Gain on extinguishment of debt	6,483						10,136
Gain on sale of property and equipment							33
Income (Loss) Before for Income Taxes	8,896			(916)			16,149	1,455
Benefit (Provision) for Income Taxes	(475)			53			(1,004)	23
Net Income (Loss)	8,421	$ 5,692	$ 1,032	(863)	$ 1,420	$ 921	15,145	1,478
Net Income (Loss) Attributable to Noncontrolling Interests	1,222			(408)			4,715	791
Net Income (Loss) Attributable to Flanigan's Enterprises, Inc. stockholders	7,199			(455)			10,430	687
Depreciation and Amortization:
Depreciation and amortization	770			808			2,306	2,441
Capital Expenditures:
Capital expenditures	2,432			531			9,683	2,171
Identifiable Assets:
Assets	123,243						123,243		$ 112,484
Restaurants [Member]
Operating Revenues:
Operating revenues	29,101			16,144			77,611	64,305
Income before corporate expenses	3,724			(822)			6,941	2,875
Depreciation and Amortization:
Depreciation and amortization	585			620			1,756	1,885
Capital Expenditures:
Capital expenditures	1,353			275			7,640	1,409
Identifiable Assets:
Assets	59,933						59,933		55,030
Package stores [Member]
Operating Revenues:
Operating revenues	8,082			7,099			23,923	18,833
Income before corporate expenses	801			616			2,251	1,589
Depreciation and Amortization:
Depreciation and amortization	85			90			261	264
Capital Expenditures:
Capital expenditures	401			49			683	206
Identifiable Assets:
Assets	13,994						13,994		13,771
Other [Member]
Operating Revenues:
Operating revenues	752			420			2,138	1,594
Corporate [Member]
Depreciation and Amortization:
Depreciation and amortization	100			98			289	292
Capital Expenditures:
Capital expenditures	678			207			1,360	556
Identifiable Assets:
Assets	49,316						49,316		43,683
Total segments [Member]
Depreciation and Amortization:
Depreciation and amortization	670			710			2,017	2,149
Capital Expenditures:
Capital expenditures	1,754			$ 324			8,323	$ 1,615
Identifiable Assets:
Assets	$ 73,927						$ 73,927		$ 68,801