BUSINESS SEGMENTS - Schedule of Business Segments (Details) - Operating Segments [Member] - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Sep. 28, 2024
Schedule of Business Segments [Line Items]
TOTAL REVENUE	$ 49,523	$ 44,420
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	22,510	19,711
GROSS PROFIT	27,013	24,709
ADDITIONAL REVENUES:
TOTAL REVENUE	49,523	44,420
TOTAL ADDITIONAL REVENUES	739	720
Capital Expenditures:
Total capital expenditures	745	1,378
Identifiable Assets:
Total identifiable assets	146,876		$ 142,082
Payroll and related costs	15,746	14,385
Operating expenses	6,554	5,913
Occupancy costs	1,954	2,164
Selling, general and administrative expenses	1,494	1,193
Depreciation and amortization	1,146	981
TOTAL ADDITIONAL EXPENSES	26,894	24,636
Income from Operations	858	793
Interest expense	(250)	(262)
Interest and other income	59	45
Gain on sale of property and equipment
OTHER INCOME (EXPENSE)	(191)	(217)
Income (loss) before provision for income taxes:	667	576
Provision for income taxes	(35)	18
Net Income	632	594
Less: Net Income attributable to noncontrolling interests	(577)	(485)
Net Income Attributable to Flanigan's Enterprises, Inc.	55	109
Restaurant [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE	38,100	34,775
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	14,041	12,788
GROSS PROFIT	24,059	21,987
ADDITIONAL REVENUES:
TOTAL REVENUE	38,100	34,775
TOTAL ADDITIONAL REVENUES	32	41
Identifiable Assets:
Payroll and related costs	13,122	11,932
Operating expenses	5,387	4,885
Occupancy costs	1,593	1,727
Selling, general and administrative expenses	484	208
Depreciation and amortization	880	723
TOTAL ADDITIONAL EXPENSES	22,246	20,243
Income from Operations	1,845	1,785
Interest expense
Interest and other income	4	9
Gain on sale of property and equipment
OTHER INCOME (EXPENSE)	4	9
Income (loss) before provision for income taxes:	1,849	1,794
Provision for income taxes
Net Income	1,849	1,794
Less: Net Income attributable to noncontrolling interests	(577)	(485)
Net Income Attributable to Flanigan's Enterprises, Inc.	1,272	1,309
Package [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE	12,435	10,602
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	9,481	7,880
GROSS PROFIT	2,954	2,722
ADDITIONAL REVENUES:
TOTAL REVENUE	12,435	10,602
TOTAL ADDITIONAL REVENUES
Identifiable Assets:
Payroll and related costs	902	843
Operating expenses	721	630
Occupancy costs	214	280
Selling, general and administrative expenses	36	50
Depreciation and amortization	125	127
TOTAL ADDITIONAL EXPENSES	2,046	1,967
Income from Operations	908	755
Interest expense
Interest and other income	16	18
Gain on sale of property and equipment
OTHER INCOME (EXPENSE)	16	23
Income (loss) before provision for income taxes:	924	778
Provision for income taxes
Net Income	924	778
Less: Net Income attributable to noncontrolling interests
Net Income Attributable to Flanigan's Enterprises, Inc.	924	778
Corporate [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
GROSS PROFIT
ADDITIONAL REVENUES:
TOTAL REVENUE
TOTAL ADDITIONAL REVENUES	2,611	2,678
Identifiable Assets:
Payroll and related costs	1,722	1,610
Operating expenses	446	398
Occupancy costs	147	157
Selling, general and administrative expenses	974	935
Depreciation and amortization	141	131
TOTAL ADDITIONAL EXPENSES	4,257	4,198
Income from Operations	(1,646)	(1,520)
Interest expense	(250)	(262)
Interest and other income	39	18
Gain on sale of property and equipment
OTHER INCOME (EXPENSE)	(211)	(244)
Income (loss) before provision for income taxes:	(1,857)	(1,764)
Provision for income taxes	(35)	18
Net Income	(1,892)	(1,746)
Less: Net Income attributable to noncontrolling interests
Net Income Attributable to Flanigan's Enterprises, Inc.	(1,892)	(1,746)
Eliminations [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE	(1,012)	(957)
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	(1,012)	(957)
GROSS PROFIT
ADDITIONAL REVENUES:
TOTAL REVENUE	(1,012)	(957)
TOTAL ADDITIONAL REVENUES	(1,904)	(1,999)
Identifiable Assets:
Payroll and related costs
Operating expenses
Occupancy costs
Selling, general and administrative expenses
Depreciation and amortization
TOTAL ADDITIONAL EXPENSES	(1,655)	(1,772)
Income from Operations	(249)	(227)
Interest expense
Interest and other income
Gain on sale of property and equipment
OTHER INCOME (EXPENSE)		(5)
Income (loss) before provision for income taxes:	(249)	(232)
Provision for income taxes
Net Income	(249)	(232)
Less: Net Income attributable to noncontrolling interests
Net Income Attributable to Flanigan's Enterprises, Inc.	(249)	(232)
Restaurant food sales [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE	29,126	26,355
ADDITIONAL REVENUES:
TOTAL REVENUE	29,126	26,355
Restaurant food sales [Member] | Restaurant [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE	29,126	26,355
ADDITIONAL REVENUES:
TOTAL REVENUE	29,126	26,355
Restaurant food sales [Member] | Package [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Restaurant food sales [Member] | Corporate [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Restaurant food sales [Member] | Eliminations [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Intersegment revenues [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Intersegment revenues [Member] | Restaurant [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE	1,012	957
ADDITIONAL REVENUES:
TOTAL REVENUE	1,012	957
Intersegment revenues [Member] | Package [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Intersegment revenues [Member] | Corporate [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Intersegment revenues [Member] | Eliminations [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE	(1,012)	(957)
ADDITIONAL REVENUES:
TOTAL REVENUE	(1,012)	(957)
Restaurant bar sales [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE	7,962	7,463
ADDITIONAL REVENUES:
TOTAL REVENUE	7,962	7,463
Restaurant bar sales [Member] | Restaurant [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE	7,962	7,463
ADDITIONAL REVENUES:
TOTAL REVENUE	7,962	7,463
Restaurant bar sales [Member] | Package [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Restaurant bar sales [Member] | Corporate [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Restaurant bar sales [Member] | Eliminations [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Package goods sales [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE	12,435	10,602
ADDITIONAL REVENUES:
TOTAL REVENUE	12,435	10,602
Package goods sales [Member] | Restaurant [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Package goods sales [Member] | Package [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE	12,435	10,602
ADDITIONAL REVENUES:
TOTAL REVENUE	12,435	10,602
Package goods sales [Member] | Corporate [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Package goods sales [Member] | Eliminations [Member]
Schedule of Business Segments [Line Items]
TOTAL REVENUE
ADDITIONAL REVENUES:
TOTAL REVENUE
Cost of merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	22,510	19,711
Cost of merchandise sold [Member] | Restaurant [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	13,029	11,831
Cost of merchandise sold [Member] | Package [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	9,481	7,880
Cost of merchandise sold [Member] | Corporate [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
Cost of merchandise sold [Member] | Eliminations [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
Intersegment cost of merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
Intersegment cost of merchandise sold [Member] | Restaurant [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	1,012	957
Intersegment cost of merchandise sold [Member] | Package [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
Intersegment cost of merchandise sold [Member] | Corporate [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
Intersegment cost of merchandise sold [Member] | Eliminations [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	(1,012)	(957)
Franchise-related revenues [Member]
Schedule of Business Segments [Line Items]
Franchise-related revenues	431	418
ADDITIONAL REVENUES:
Franchise-related revenues	431	418
Franchise-related revenues [Member] | Restaurant [Member]
Schedule of Business Segments [Line Items]
Franchise-related revenues
ADDITIONAL REVENUES:
Franchise-related revenues
Franchise-related revenues [Member] | Package [Member]
Schedule of Business Segments [Line Items]
Franchise-related revenues
ADDITIONAL REVENUES:
Franchise-related revenues
Franchise-related revenues [Member] | Corporate [Member]
Schedule of Business Segments [Line Items]
Franchise-related revenues	431	418
ADDITIONAL REVENUES:
Franchise-related revenues	431	418
Franchise-related revenues [Member] | Eliminations [Member]
Schedule of Business Segments [Line Items]
Franchise-related revenues
ADDITIONAL REVENUES:
Franchise-related revenues
Intersegment franchise-related revenues [Member]
Schedule of Business Segments [Line Items]
Intersegment franchise-related revenues
ADDITIONAL REVENUES:
Intersegment franchise-related revenues
Intersegment franchise-related revenues [Member] | Restaurant [Member]
Schedule of Business Segments [Line Items]
Intersegment franchise-related revenues
ADDITIONAL REVENUES:
Intersegment franchise-related revenues
Intersegment franchise-related revenues [Member] | Package [Member]
Schedule of Business Segments [Line Items]
Intersegment franchise-related revenues
ADDITIONAL REVENUES:
Intersegment franchise-related revenues
Intersegment franchise-related revenues [Member] | Corporate [Member]
Schedule of Business Segments [Line Items]
Intersegment franchise-related revenues	1,441	1,559
ADDITIONAL REVENUES:
Intersegment franchise-related revenues	1,441	1,559
Intersegment franchise-related revenues [Member] | Eliminations [Member]
Schedule of Business Segments [Line Items]
Intersegment franchise-related revenues	(1,441)	(1,559)
ADDITIONAL REVENUES:
Intersegment franchise-related revenues	(1,441)	(1,559)
Rental income [Member]
Schedule of Business Segments [Line Items]
Rental income	267	253
ADDITIONAL REVENUES:
Rental income	267	253
Rental income [Member] | Restaurant [Member]
Schedule of Business Segments [Line Items]
Rental income
ADDITIONAL REVENUES:
Rental income
Rental income [Member] | Package [Member]
Schedule of Business Segments [Line Items]
Rental income
ADDITIONAL REVENUES:
Rental income
Rental income [Member] | Corporate [Member]
Schedule of Business Segments [Line Items]
Rental income	267	253
ADDITIONAL REVENUES:
Rental income	267	253
Rental income [Member] | Eliminations [Member]
Schedule of Business Segments [Line Items]
Rental income
ADDITIONAL REVENUES:
Rental income
Intersegment rental income [Member]
Schedule of Business Segments [Line Items]
Intersegment rental income
ADDITIONAL REVENUES:
Intersegment rental income
Intersegment rental income [Member] | Restaurant [Member]
Schedule of Business Segments [Line Items]
Intersegment rental income
ADDITIONAL REVENUES:
Intersegment rental income
Intersegment rental income [Member] | Package [Member]
Schedule of Business Segments [Line Items]
Intersegment rental income
ADDITIONAL REVENUES:
Intersegment rental income
Intersegment rental income [Member] | Corporate [Member]
Schedule of Business Segments [Line Items]
Intersegment rental income	214	208
ADDITIONAL REVENUES:
Intersegment rental income	214	208
Intersegment rental income [Member] | Eliminations [Member]
Schedule of Business Segments [Line Items]
Intersegment rental income	(214)	(208)
ADDITIONAL REVENUES:
Intersegment rental income	(214)	(208)
Intersegment partnership income [Member]
Schedule of Business Segments [Line Items]
Intersegment partnership income
ADDITIONAL REVENUES:
Intersegment partnership income
Intersegment partnership income [Member] | Restaurant [Member]
Schedule of Business Segments [Line Items]
Intersegment partnership income
ADDITIONAL REVENUES:
Intersegment partnership income
Intersegment partnership income [Member] | Package [Member]
Schedule of Business Segments [Line Items]
Intersegment partnership income
ADDITIONAL REVENUES:
Intersegment partnership income
Intersegment partnership income [Member] | Corporate [Member]
Schedule of Business Segments [Line Items]
Intersegment partnership income	249	232
ADDITIONAL REVENUES:
Intersegment partnership income	249	232
Intersegment partnership income [Member] | Eliminations [Member]
Schedule of Business Segments [Line Items]
Intersegment partnership income	(249)	(232)
ADDITIONAL REVENUES:
Intersegment partnership income	(249)	(232)
Other operating income [Member]
Schedule of Business Segments [Line Items]
Other revenues	41	49
ADDITIONAL REVENUES:
Other revenues	41	49
Other operating income [Member] | Restaurant [Member]
Schedule of Business Segments [Line Items]
Other revenues	32	41
ADDITIONAL REVENUES:
Other revenues	32	41
Other operating income [Member] | Package [Member]
Schedule of Business Segments [Line Items]
Other revenues
ADDITIONAL REVENUES:
Other revenues
Other operating income [Member] | Corporate [Member]
Schedule of Business Segments [Line Items]
Other revenues	9	8
ADDITIONAL REVENUES:
Other revenues	9	8
Other operating income [Member] | Eliminations [Member]
Schedule of Business Segments [Line Items]
Other revenues
ADDITIONAL REVENUES:
Other revenues
Intersegment operating expenses [Member]
Identifiable Assets:
Intersegment operating expenses
Intersegment operating expenses [Member] | Restaurant [Member]
Identifiable Assets:
Intersegment operating expenses	614	603
Intersegment operating expenses [Member] | Package [Member]
Identifiable Assets:
Intersegment operating expenses
Intersegment operating expenses [Member] | Corporate [Member]
Identifiable Assets:
Intersegment operating expenses	755	895
Intersegment operating expenses [Member] | Eliminations [Member]
Identifiable Assets:
Intersegment operating expenses	(1,369)	(1,498)
Intersegment occupancy costs [Member]
Identifiable Assets:
Intersegment occupancy costs
Intersegment occupancy costs [Member] | Restaurant [Member]
Identifiable Assets:
Intersegment occupancy costs	166	165
Intersegment occupancy costs [Member] | Package [Member]
Identifiable Assets:
Intersegment occupancy costs	48	43
Intersegment occupancy costs [Member] | Corporate [Member]
Identifiable Assets:
Intersegment occupancy costs
Intersegment occupancy costs [Member] | Eliminations [Member]
Identifiable Assets:
Intersegment occupancy costs	(214)	(208)
Intersegment Selling, general and administrative expenses [Member]
Identifiable Assets:
Intersegment selling, general and administrative expenses
Intersegment Selling, general and administrative expenses [Member] | Restaurant [Member]
Identifiable Assets:
Intersegment selling, general and administrative expenses
Intersegment Selling, general and administrative expenses [Member] | Package [Member]
Identifiable Assets:
Intersegment selling, general and administrative expenses
Intersegment Selling, general and administrative expenses [Member] | Corporate [Member]
Identifiable Assets:
Intersegment selling, general and administrative expenses	72	72
Intersegment Selling, general and administrative expenses [Member] | Eliminations [Member]
Identifiable Assets:
Intersegment selling, general and administrative expenses	(72)	(72)
Intersegment interest expense [Member]
Identifiable Assets:
Interest expense
Intersegment interest expense [Member] | Restaurant [Member]
Identifiable Assets:
Interest expense
Intersegment interest expense [Member] | Package [Member]
Identifiable Assets:
Interest expense
Intersegment interest expense [Member] | Corporate [Member]
Identifiable Assets:
Interest expense	(2)	(2)
Intersegment interest expense [Member] | Eliminations [Member]
Identifiable Assets:
Interest expense	2	2
Intersegment interest and other income [Member]
Identifiable Assets:
Interest and other income
Intersegment interest and other income [Member] | Restaurant [Member]
Identifiable Assets:
Interest and other income
Intersegment interest and other income [Member] | Package [Member]
Identifiable Assets:
Interest and other income		5
Intersegment interest and other income [Member] | Corporate [Member]
Identifiable Assets:
Interest and other income	2	2
Intersegment interest and other income [Member] | Eliminations [Member]
Identifiable Assets:
Interest and other income	(2)	(7)
Payroll and related costs [Member]
Identifiable Assets:
Intersegment payroll costs
Payroll and related costs [Member] | Restaurant [Member]
Identifiable Assets:
Intersegment payroll costs
Payroll and related costs [Member] | Package [Member]
Identifiable Assets:
Intersegment payroll costs		(6)
Payroll and related costs [Member] | Corporate [Member]
Identifiable Assets:
Intersegment payroll costs
Payroll and related costs [Member] | Eliminations [Member]
Identifiable Assets:
Intersegment payroll costs		6
Restaurants [Member]
Capital Expenditures:
Total capital expenditures	519	1,144
Identifiable Assets:
Total identifiable assets	75,840		77,613
Package stores [Member]
Capital Expenditures:
Total capital expenditures	122	47
Identifiable Assets:
Total identifiable assets	23,435		23,084
Corporate [Member]
Capital Expenditures:
Total capital expenditures	104	$ 187
Identifiable Assets:
Total identifiable assets	$ 47,601		$ 41,385