BUSINESS SEGMENTS (Details) - Schedule of Business Segments - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Mar. 30, 2024	Dec. 30, 2023	Apr. 01, 2023	Dec. 31, 2022	Mar. 30, 2024	Apr. 01, 2023	Sep. 30, 2023
Operating Revenues:
Total operating revenues	$ 48,069		$ 43,803		$ 93,209	$ 85,664
Income from Operations Reconciled to Income After Income Taxes and Net Income Attributable to Noncontrolling Interests
Income from Operations	2,685		2,711		3,477	3,908
Interest expense	(255)		(262)		(517)	(537)
Interest and Other income	39		19		85	34
Income before benefit (provision) for Income Taxes	2,469		2,468		3,045	3,405
Benefit (provision) for Income Taxes	55		(290)		73	(353)
Net Income	2,524	$ 594	2,178	$ 874	3,118	3,052
Net Income Attributable to Noncontrolling Interests	(582)		(281)		(1,067)	(531)
Net Income Attributable to Flanigan’s Enterprises, Inc. Stockholders	1,942		1,897		2,051	2,521
Depreciation and Amortization:
Corporate	1,018		858		2,004	1,679
Capital Expenditures:
Total Capital Expenditures	2,936		2,743		4,314	4,242
Identifiable Assets:
Assets	144,385				144,385		$ 145,769
Operating Segments [Member]
Operating Revenues:
Total operating revenues	48,069		43,803		93,209	85,664
Income from Operations Reconciled to Income After Income Taxes and Net Income Attributable to Noncontrolling Interests
Income from Operations	3,940		3,642		5,743	5,220
Depreciation and Amortization:
Corporate	883		750		1,738	1,466
Capital Expenditures:
Total Capital Expenditures	2,513		2,411		3,704	3,708
Identifiable Assets:
Assets	102,197				102,197		100,289
Restaurants [Member] | Operating Segments [Member]
Operating Revenues:
Total operating revenues	37,096		34,394		70,914	66,149
Income from Operations Reconciled to Income After Income Taxes and Net Income Attributable to Noncontrolling Interests
Income from Operations	2,813		3,001		3,984	3,780
Depreciation and Amortization:
Corporate	758		631		1,486	1,257
Capital Expenditures:
Total Capital Expenditures	2,494		2,299		3,638	3,246
Identifiable Assets:
Assets	78,544				78,544		76,575
Package stores [Member] | Operating Segments [Member]
Operating Revenues:
Total operating revenues	10,140		8,659		20,742	18,062
Income from Operations Reconciled to Income After Income Taxes and Net Income Attributable to Noncontrolling Interests
Income from Operations	1,127		641		1,759	1,440
Depreciation and Amortization:
Corporate	125		119		252	209
Capital Expenditures:
Total Capital Expenditures	19		112		66	462
Identifiable Assets:
Assets	23,653				23,653		23,714
Other Revenues [Member] | Operating Segments [Member]
Operating Revenues:
Total operating revenues	833		750		1,553	1,453
Corporate Expenses [Member]
Income from Operations Reconciled to Income After Income Taxes and Net Income Attributable to Noncontrolling Interests
Corporate expenses, net of other revenues	(1,255)		(931)		(2,266)	(1,312)
Corporate [Member]
Depreciation and Amortization:
Corporate	135		108		266	213
Capital Expenditures:
Total Capital Expenditures	423		$ 332		610	$ 534
Identifiable Assets:
Assets	$ 42,188				$ 42,188		$ 45,480