BUSINESS SEGMENTS (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Apr. 03, 2021	Jan. 02, 2021	Mar. 28, 2020	Dec. 28, 2019	Apr. 03, 2021	Mar. 28, 2020	Oct. 03, 2020
Operating Revenues:
Operating revenues	$ 34,357		$ 30,128		$ 65,737	$ 61,069
Income before corporate expenses	2,772		2,552		4,667	4,670
Corporate expenses, net of other revenues	21		(1,035)		(604)	(1,922)
Income from operations	2,793		1,517		4,063	2,748
Interest expense	(248)		(198)		(527)	(402)
Interest and Other income	19		13		31	25
Gain on forgiveness of PPP loans	3,653				3,653
Gain on sale of property and equipment	8				33
Income Before Provision for Income Taxes	6,225		1,332		7,253	2,371
Provision for Income Taxes	(533)		88		(529)	(30)
Net Income	5,692	$ 1,032	1,420	$ 921	6,724	2,341
Net Income Attributable to Noncontrolling Interests	(3,241)		(772)		(3,493)	(1,199)
Net Income Attributable to Flanigan's Enterprises, Inc. stockholders	2,451		648		3,231	1,142
Depreciation and Amortization:
Depreciation and amortization	762		815		1,536	1,632
Capital Expenditures:
Capital expenditures	6,146		707		7,251	1,640
Identifiable Assets:
Assets	121,522				121,522		$ 112,484
Restaurants [Member]
Operating Revenues:
Operating revenues	25,739		23,528		48,510	48,161
Income before corporate expenses	2,037		1,962		3,217	3,697
Depreciation and Amortization:
Depreciation and amortization	578		629		1,171	1,264
Capital Expenditures:
Capital expenditures	5,523		433		6,287	1,134
Identifiable Assets:
Assets	59,169				59,169		55,030
Package stores [Member]
Operating Revenues:
Operating revenues	7,830		6,027		15,841	11,734
Income before corporate expenses	735		590		1,450	973
Depreciation and Amortization:
Depreciation and amortization	87		90		176	174
Capital Expenditures:
Capital expenditures	169		54		282	157
Identifiable Assets:
Assets	13,663				13,663		13,771
Other [Member]
Operating Revenues:
Operating revenues	788		573		1,386	1,174
Corporate [Member]
Depreciation and Amortization:
Depreciation and amortization	97		96		189	194
Capital Expenditures:
Capital expenditures	454		220		682	349
Identifiable Assets:
Assets	48,690				48,690		43,683
Total segments [Member]
Depreciation and Amortization:
Depreciation and amortization	665		719		1,347	1,438
Capital Expenditures:
Capital expenditures	5,692		$ 487		6,569	$ 1,291
Identifiable Assets:
Assets	$ 72,832				$ 72,832		$ 68,801