BUSINESS SEGMENTS (Details)	3 Months Ended								12 Months Ended
	Sep. 28, 2019 USD ($)	Jun. 29, 2019 USD ($)	Mar. 30, 2019 USD ($)	Dec. 29, 2018 USD ($)	Sep. 29, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 30, 2017 USD ($)	Sep. 28, 2019 USD ($) item	Sep. 29, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments | item									2
Operating Revenues:
Operating revenues	$ 29,060,000	$ 29,512,000	$ 29,736,000	$ 27,894,000	$ 27,212,000	$ 28,436,000	$ 29,456,000	$ 28,393,000	$ 116,202,000	$ 113,497,000
Income from Operations	1,827,000	1,944,000	1,890,000	655,000	1,251,000	2,094,000	2,512,000	1,587,000	6,316,000	7,444,000
Interest expense									(708,000)	(753,000)
Interest and Other Income									54,000	70,000
Insurance recovery, net of casualty loss									602,000
Income before provision for income taxes									6,264,000	6,761,000
Provision for Income Taxes									(887,000)	(1,371,000)
Net Income									5,377,000	5,390,000
Net income Attributable to Noncontrolling Interests									(1,729,000)	(1,713,000)
Net Income Attributable to Flanigan's Enterprises, Inc, stockholders	916,000	$ 968,000	$ 1,021,000	$ 743,000	616,000	$ 1,043,000	$ 1,397,000	$ 621,000	3,648,000	3,677,000
Identifiable Assets:
Assets	68,755,000				67,265,000				68,755,000	67,265,000
Capital Expenditures:
Capital Expenditures									6,323,000	5,511,000
Depreciation and Amortization:
Depreciation and Amortization									3,040,000	2,803,000
Operating Segments [Member]
Operating Revenues:
Income from Operations									9,844,000	10,949,000
Identifiable Assets:
Assets	41,617,000				41,090,000				41,617,000	41,090,000
Capital Expenditures:
Capital Expenditures									4,362,000	4,332,000
Depreciation and Amortization:
Depreciation and Amortization									2,647,000	2,455,000
Operating Segments [Member] | Restaurants [Member]
Operating Revenues:
Operating revenues									94,290,000	92,305,000
Income from Operations									8,965,000	9,977,000
Identifiable Assets:
Assets	31,077,000				30,963,000				31,077,000	30,963,000
Capital Expenditures:
Capital Expenditures									3,464,000	3,980,000
Depreciation and Amortization:
Depreciation and Amortization									2,373,000	2,181,000
Operating Segments [Member] | Package stores [Member]
Operating Revenues:
Operating revenues									19,327,000	18,559,000
Income from Operations									879,000	972,000
Identifiable Assets:
Assets	10,540,000				10,127,000				10,540,000	10,127,000
Capital Expenditures:
Capital Expenditures									898,000	352,000
Depreciation and Amortization:
Depreciation and Amortization									274,000	274,000
Corporate, Non-Segment [Member]
Operating Revenues:
Operating revenues									2,585,000	2,633,000
Income from Operations									(3,528,000)	(3,505,000)
Identifiable Assets:
Assets	$ 27,138,000				$ 26,175,000				27,138,000	26,175,000
Capital Expenditures:
Capital Expenditures									1,961,000	1,179,000
Depreciation and Amortization:
Depreciation and Amortization									$ 393,000	$ 348,000