BUSINESS SEGMENTS - Schedule of Business Segments (Details) - Operating Segments [Member] - USD ($) $ in Thousands	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024
REVENUES:
TOTAL REVENUE	$ 203,253	$ 185,302
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	87,359	79,990
GROSS PROFIT:	115,894	105,312
ADDITIONAL REVENUES:
TOTAL ADDITIONAL REVENUES:	1,995	1,914
ADDITIONAL EXPENSES:
Payroll and related costs	63,701	59,349
Operating expenses	27,438	24,701
Occupancy costs	7,870	7,754
Selling, general and administrative expenses	5,463	5,313
Intersegment selling, general and administrative expenses
Depreciation and amortization	4,672	4,268
TOTAL ADDITIONAL EXPENSES:	109,144	101,385
Income (Loss) from Operations	8,745	5,841
OTHER INCOME (EXPENSE):
Interest expense	(957)	(1,019)
Interest and other income (expense)	396	207
Rental income	1,077	1,105
Intersegment rental income
Rental expense	(622)	(550)
Gain on sale of property and equipment		2
OTHER INCOME (EXPENSE)	(106)	(255)
Income (loss) before provision for income taxes:	8,639	5,586
Provision for income taxes	(622)	(286)
Net Income	8,017	5,300
Less: Net Income attributable to noncontrolling interests	(2,984)	(1,944)
Net Income (Loss) Attributable to Flanigan’s Enterprises, Inc.	5,033	3,356
Restaurant food sales [Member]
REVENUES:
TOTAL REVENUE	124,501	114,795
Intersegment revenues [Member]
REVENUES:
TOTAL REVENUE
Restaurant bar sales [Member]
REVENUES:
TOTAL REVENUE	31,764	30,010
Package goods sales [Member]
REVENUES:
TOTAL REVENUE	46,988	40,497
Cost of merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	87,359	79,990
Intersegment Cost of Merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
Franchise related revenues [Member]
ADDITIONAL REVENUES:
Franchise-related revenues	1,754	1,693
Intersegment Franchise-related revenues [Member]
ADDITIONAL REVENUES:
Intersegment franchise-related revenues
Intersegment Partnership income [Member]
ADDITIONAL REVENUES:
Intersegment partnership income
Other operating income [Member]
ADDITIONAL REVENUES:
Other revenues	241	221
Intersegment Operating Expenses [Member]
ADDITIONAL EXPENSES:
Intersegment operating expenses
Intersegment occupancy costs [Member]
ADDITIONAL EXPENSES:
Intersegment occupancy costs
Intersegment Selling, general and administrative expenses [Member]
ADDITIONAL EXPENSES:
Intersegment selling, general and administrative expenses
Intersegment interest expense [Member]
OTHER INCOME (EXPENSE):
Interest expense
Intersegment interest and other income [Member]
OTHER INCOME (EXPENSE):
Interest and other income (expense)
Payroll and related costs [Member]
ADDITIONAL EXPENSES:
Intersegment payroll costs
Restaurant [Member]
REVENUES:
TOTAL REVENUE	160,794	148,946
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	56,703	54,003
GROSS PROFIT:	104,091	94,943
ADDITIONAL REVENUES:
TOTAL ADDITIONAL REVENUES:	162	165
ADDITIONAL EXPENSES:
Payroll and related costs	52,272	49,024
Operating expenses	22,795	20,517
Occupancy costs	6,719	6,534
Selling, general and administrative expenses	1,578	1,232
Intersegment selling, general and administrative expenses
Depreciation and amortization	3,443	3,216
TOTAL ADDITIONAL EXPENSES:	89,980	83,619
Income (Loss) from Operations	14,273	11,489
OTHER INCOME (EXPENSE):
Interest expense
Interest and other income (expense)	10	22
Rental income
Intersegment rental income
Rental expense
Gain on sale of property and equipment
OTHER INCOME (EXPENSE)	10	22
Income (loss) before provision for income taxes:	14,283	11,511
Provision for income taxes
Net Income	14,283	11,511
Less: Net Income attributable to noncontrolling interests	(2,984)	(1,944)
Net Income (Loss) Attributable to Flanigan’s Enterprises, Inc.	11,299	9,567
Capital Expenditures:
Restaurants	5,844
Restaurant [Member] | Restaurant food sales [Member]
REVENUES:
TOTAL REVENUE	124,501	114,795
Restaurant [Member] | Intersegment revenues [Member]
REVENUES:
TOTAL REVENUE	4,529	4,141
Restaurant [Member] | Restaurant bar sales [Member]
REVENUES:
TOTAL REVENUE	31,764	30,010
Restaurant [Member] | Package goods sales [Member]
REVENUES:
TOTAL REVENUE
Restaurant [Member] | Cost of merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	52,174	49,862
Restaurant [Member] | Intersegment Cost of Merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	4,529	4,141
Restaurant [Member] | Franchise related revenues [Member]
ADDITIONAL REVENUES:
Franchise-related revenues
Restaurant [Member] | Intersegment Franchise-related revenues [Member]
ADDITIONAL REVENUES:
Intersegment franchise-related revenues
Restaurant [Member] | Intersegment Partnership income [Member]
ADDITIONAL REVENUES:
Intersegment partnership income
Restaurant [Member] | Other operating income [Member]
ADDITIONAL REVENUES:
Other revenues	162	165
Restaurant [Member] | Intersegment Operating Expenses [Member]
ADDITIONAL EXPENSES:
Intersegment operating expenses	2,507	2,431
Restaurant [Member] | Intersegment occupancy costs [Member]
ADDITIONAL EXPENSES:
Intersegment occupancy costs	666	665
Restaurant [Member] | Intersegment Selling, general and administrative expenses [Member]
ADDITIONAL EXPENSES:
Intersegment selling, general and administrative expenses
Restaurant [Member] | Intersegment interest expense [Member]
OTHER INCOME (EXPENSE):
Interest expense
Restaurant [Member] | Intersegment interest and other income [Member]
OTHER INCOME (EXPENSE):
Interest and other income (expense)
Restaurant [Member] | Payroll and related costs [Member]
ADDITIONAL EXPENSES:
Intersegment payroll costs
Restaurant [Member] | Restaurants [Member]
Capital Expenditures:
Restaurants	4,815
Restaurant [Member] | Package stores [Member]
Capital Expenditures:
Restaurants	289
Restaurant [Member] | Corporate [Member]
Capital Expenditures:
Restaurants	740
Package [Member]
REVENUES:
TOTAL REVENUE	46,988	40,497
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	35,185	30,128
GROSS PROFIT:	11,803	10,369
ADDITIONAL REVENUES:
TOTAL ADDITIONAL REVENUES:
ADDITIONAL EXPENSES:
Payroll and related costs	3,479	3,153
Operating expenses	3,063	2,640
Occupancy costs	784	862
Selling, general and administrative expenses	166	167
Intersegment selling, general and administrative expenses
Depreciation and amortization	632	499
TOTAL ADDITIONAL EXPENSES:	8,318	7,481
Income (Loss) from Operations	3,485	2,888
OTHER INCOME (EXPENSE):
Interest expense
Interest and other income (expense)	90	82
Rental income
Intersegment rental income
Rental expense
Gain on sale of property and equipment
OTHER INCOME (EXPENSE)	90	102
Income (loss) before provision for income taxes:	3,575	2,990
Provision for income taxes
Net Income	3,575	2,990
Less: Net Income attributable to noncontrolling interests
Net Income (Loss) Attributable to Flanigan’s Enterprises, Inc.	3,575	2,990
Capital Expenditures:
Restaurants		6,047
Package [Member] | Restaurant food sales [Member]
REVENUES:
TOTAL REVENUE
Package [Member] | Intersegment revenues [Member]
REVENUES:
TOTAL REVENUE
Package [Member] | Restaurant bar sales [Member]
REVENUES:
TOTAL REVENUE
Package [Member] | Package goods sales [Member]
REVENUES:
TOTAL REVENUE	46,988	40,497
Package [Member] | Cost of merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	35,185	30,128
Package [Member] | Intersegment Cost of Merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
Package [Member] | Franchise related revenues [Member]
ADDITIONAL REVENUES:
Franchise-related revenues
Package [Member] | Intersegment Franchise-related revenues [Member]
ADDITIONAL REVENUES:
Intersegment franchise-related revenues
Package [Member] | Intersegment Partnership income [Member]
ADDITIONAL REVENUES:
Intersegment partnership income
Package [Member] | Other operating income [Member]
ADDITIONAL REVENUES:
Other revenues
Package [Member] | Intersegment Operating Expenses [Member]
ADDITIONAL EXPENSES:
Intersegment operating expenses
Package [Member] | Intersegment occupancy costs [Member]
ADDITIONAL EXPENSES:
Intersegment occupancy costs	194	184
Package [Member] | Intersegment Selling, general and administrative expenses [Member]
ADDITIONAL EXPENSES:
Intersegment selling, general and administrative expenses
Package [Member] | Intersegment interest expense [Member]
OTHER INCOME (EXPENSE):
Interest expense
Package [Member] | Intersegment interest and other income [Member]
OTHER INCOME (EXPENSE):
Interest and other income (expense)		20
Package [Member] | Payroll and related costs [Member]
ADDITIONAL EXPENSES:
Intersegment payroll costs		(24)
Package [Member] | Restaurants [Member]
Capital Expenditures:
Restaurants		4,986
Package [Member] | Package stores [Member]
Capital Expenditures:
Restaurants		197
Package [Member] | Corporate [Member]
Capital Expenditures:
Restaurants		864
Corporate [Member]
REVENUES:
TOTAL REVENUE
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
GROSS PROFIT:
ADDITIONAL REVENUES:
TOTAL ADDITIONAL REVENUES:	9,148	8,750
ADDITIONAL EXPENSES:
Payroll and related costs	7,950	7,172
Operating expenses	1,580	1,544
Occupancy costs	367	358
Selling, general and administrative expenses	3,719	3,914
Intersegment selling, general and administrative expenses		286
Depreciation and amortization	597	553
TOTAL ADDITIONAL EXPENSES:	17,370	17,000
Income (Loss) from Operations	(8,222)	(8,250)
OTHER INCOME (EXPENSE):
Interest expense	(957)	(1,019)
Interest and other income (expense)	296	103
Rental income	1,077	1,105
Intersegment rental income	860	849
Rental expense	(622)	(550)
Gain on sale of property and equipment		2
OTHER INCOME (EXPENSE)	654	490
Income (loss) before provision for income taxes:	(7,568)	(7,760)
Provision for income taxes	(622)	(286)
Net Income	(8,190)	(8,046)
Less: Net Income attributable to noncontrolling interests
Net Income (Loss) Attributable to Flanigan’s Enterprises, Inc.	(8,190)	(8,046)
Identifiable Assets:
Total identifiable assets	140,623
Corporate [Member] | Restaurant food sales [Member]
REVENUES:
TOTAL REVENUE
Corporate [Member] | Intersegment revenues [Member]
REVENUES:
TOTAL REVENUE
Corporate [Member] | Restaurant bar sales [Member]
REVENUES:
TOTAL REVENUE
Corporate [Member] | Package goods sales [Member]
REVENUES:
TOTAL REVENUE
Corporate [Member] | Cost of merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
Corporate [Member] | Intersegment Cost of Merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
Corporate [Member] | Franchise related revenues [Member]
ADDITIONAL REVENUES:
Franchise-related revenues	1,754	1,693
Corporate [Member] | Intersegment Franchise-related revenues [Member]
ADDITIONAL REVENUES:
Intersegment franchise-related revenues	5,664	5,845
Corporate [Member] | Intersegment Partnership income [Member]
ADDITIONAL REVENUES:
Intersegment partnership income	1,651	1,156
Corporate [Member] | Other operating income [Member]
ADDITIONAL REVENUES:
Other revenues	79	56
Corporate [Member] | Intersegment Operating Expenses [Member]
ADDITIONAL EXPENSES:
Intersegment operating expenses	2,871	3,173
Corporate [Member] | Intersegment occupancy costs [Member]
ADDITIONAL EXPENSES:
Intersegment occupancy costs
Corporate [Member] | Intersegment Selling, general and administrative expenses [Member]
ADDITIONAL EXPENSES:
Intersegment selling, general and administrative expenses	286
Corporate [Member] | Intersegment interest expense [Member]
OTHER INCOME (EXPENSE):
Interest expense	(8)	(8)
Corporate [Member] | Intersegment interest and other income [Member]
OTHER INCOME (EXPENSE):
Interest and other income (expense)	8	8
Corporate [Member] | Payroll and related costs [Member]
ADDITIONAL EXPENSES:
Intersegment payroll costs
Corporate [Member] | Restaurants [Member]
Identifiable Assets:
Total identifiable assets	76,500
Corporate [Member] | Package stores [Member]
Identifiable Assets:
Total identifiable assets	24,053
Corporate [Member] | Corporate [Member]
Identifiable Assets:
Total identifiable assets	40,070
Eliminations [Member]
REVENUES:
TOTAL REVENUE	(4,529)	(4,141)
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	(4,529)	(4,141)
GROSS PROFIT:
ADDITIONAL REVENUES:
TOTAL ADDITIONAL REVENUES:	(7,315)	(7,001)
ADDITIONAL EXPENSES:
Payroll and related costs
Operating expenses
Occupancy costs
Selling, general and administrative expenses
Intersegment selling, general and administrative expenses		(286)
Depreciation and amortization
TOTAL ADDITIONAL EXPENSES:	(6,524)	(6,715)
Income (Loss) from Operations	(791)	(286)
OTHER INCOME (EXPENSE):
Interest expense
Interest and other income (expense)
Rental income
Intersegment rental income	(860)	(849)
Rental expense
Gain on sale of property and equipment
OTHER INCOME (EXPENSE)	(860)	(869)
Income (loss) before provision for income taxes:	(1,651)	(1,155)
Provision for income taxes
Net Income	(1,651)	(1,155)
Less: Net Income attributable to noncontrolling interests
Net Income (Loss) Attributable to Flanigan’s Enterprises, Inc.	(1,651)	(1,155)
Identifiable Assets:
Total identifiable assets		142,082
Eliminations [Member] | Restaurant food sales [Member]
REVENUES:
TOTAL REVENUE
Eliminations [Member] | Intersegment revenues [Member]
REVENUES:
TOTAL REVENUE	(4,529)	(4,141)
Eliminations [Member] | Restaurant bar sales [Member]
REVENUES:
TOTAL REVENUE
Eliminations [Member] | Package goods sales [Member]
REVENUES:
TOTAL REVENUE
Eliminations [Member] | Cost of merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD
Eliminations [Member] | Intersegment Cost of Merchandise sold [Member]
COST OF MERCHANDISE SOLD:
TOTAL COST OF MERCHANDISE SOLD	(4,529)	(4,141)
Eliminations [Member] | Franchise related revenues [Member]
ADDITIONAL REVENUES:
Franchise-related revenues
Eliminations [Member] | Intersegment Franchise-related revenues [Member]
ADDITIONAL REVENUES:
Intersegment franchise-related revenues	(5,664)	(5,845)
Eliminations [Member] | Intersegment Partnership income [Member]
ADDITIONAL REVENUES:
Intersegment partnership income	(1,651)	(1,156)
Eliminations [Member] | Other operating income [Member]
ADDITIONAL REVENUES:
Other revenues
Eliminations [Member] | Intersegment Operating Expenses [Member]
ADDITIONAL EXPENSES:
Intersegment operating expenses	(5,378)	(5,604)
Eliminations [Member] | Intersegment occupancy costs [Member]
ADDITIONAL EXPENSES:
Intersegment occupancy costs	(860)	(849)
Eliminations [Member] | Intersegment Selling, general and administrative expenses [Member]
ADDITIONAL EXPENSES:
Intersegment selling, general and administrative expenses	(286)
Eliminations [Member] | Intersegment interest expense [Member]
OTHER INCOME (EXPENSE):
Interest expense	8	8
Eliminations [Member] | Intersegment interest and other income [Member]
OTHER INCOME (EXPENSE):
Interest and other income (expense)	$ (8)	(28)
Eliminations [Member] | Payroll and related costs [Member]
ADDITIONAL EXPENSES:
Intersegment payroll costs		24
Eliminations [Member] | Restaurants [Member]
Identifiable Assets:
Total identifiable assets		77,613
Eliminations [Member] | Package stores [Member]
Identifiable Assets:
Total identifiable assets		23,084
Eliminations [Member] | Corporate [Member]
Identifiable Assets:
Total identifiable assets		$ 41,385