DEBT (Details) - Schedule of Long Term Debt (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2023	Oct. 01, 2022
Mortgage Payable to Unrelated Third Party One [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Fixed portion of debt, interest rate	3.86%
Term of debt	20 years
Monthly payment	$ 43,400
Balloon payment	5,373,000
Net book value of collateral	$ 5,571,000
Payment frequency	monthly
Maturity date	Nov. 27, 2026
Mortgage payable to lender 1 [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Fixed portion of debt, interest rate	3.63%
Term of debt	15 years
Monthly payment	$ 31,100
Net book value of collateral	$ 11,149,000
Payment frequency	monthly
Maturity date	Jul. 01, 2036
Mortgage Payable To Lender Two [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Fixed portion of debt, interest rate	3.65%
Term of debt	15 years
Monthly payment	$ 16,000
Net book value of collateral	$ 7,601,000
Payment frequency	monthly
Maturity date	Mar. 02, 2036
Mortgage Payable To Lender Three [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Term of debt	15 years
Monthly payment	$ 33,000
Net book value of collateral	$ 3,458,000
Payment frequency	monthly
Maturity date	Oct. 01, 2022
Variable interest rate spread	5.38%
Fixed interest rate	4.90%
Variable interest rate, description	BSBY Screen Rate – 1 Month +1.50%
Re-financing of mortgage		$ 8,012,000
Revolving credit line term loan payable to lender 1 [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Term of debt	5 years
Monthly payment	$ 5,500,000
Net book value of collateral	$ 3,500,000
Maturity date	Dec. 28, 2022
Variable interest rate spread	2.25%
Fixed interest rate	4.61%
Variable interest rate, description	LIBOR – Daily Floating Rate + 2.25%
Interest rate at period end	5.38%
Fixed-rate portion of debt	$ 5,500,000
Payoff of Team Loan [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Accrued interest	0
Outstanding principal balance	$ 367,000
Mortgage payable to Lender [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Term of debt	15 years
Monthly payment	$ 6,400
Net book value of collateral	$ 1,033,000
Payment frequency	monthly
Maturity date	Dec. 28, 2031
Interest rate	4.65%
Mortgage payable to unrelated third party 1 [Member] \| Loans Payable [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Term of debt	15 years
Monthly payment	$ 9,300
Balloon payment	487,000
Net book value of collateral	$ 1,873,000
Payment frequency	monthly
Maturity date	Aug. 31, 2023
Interest rate	6.00%
Mortgage payable to lender 2 [Member] \| Loans Payable [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Term of debt	15 years
Monthly payment	$ 6,500
Net book value of collateral	$ 988,000
Payment frequency	monthly
Maturity date	Dec. 28, 2031
Interest rate	4.65%
Financed Insurance Premiums [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Monthly payment	$ 215,000
Payment frequency	monthly
Maturity date	Nov. 30, 2022
Interest rate	2.55%
Mortgage payable to unrelated third party 3 [Member] \| Loans Payable [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Term of debt	20 years
Monthly payment	$ 7,300
Payment frequency	monthly
Maturity date	Mar. 31, 2034
Interest rate	7.50%
Term Loan Payable 1 [Member] \| Loans Payable [Member]
DEBT (Details) - Schedule of Long Term Debt (Parentheticals) [Line Items]
Term of debt	8 years
Monthly payment	$ 3,000
Net book value of collateral	$ 559,000
Payment frequency	monthly
Maturity date	Nov. 30, 2026
Interest rate	4.00%

No definition available.

Name:	bdl_DEBTDetailsScheduleofLongTermDebtParentheticalsLineItems
Namespace Prefix:	bdl_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Net book value of collateral securing debt.

+ References

No definition available.

+ Details

Name:	bdl_NetBookValueOfCollateralSecuringMortgage
Namespace Prefix:	bdl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of re financing mortgage.

+ References

No definition available.

+ Details

Name:	bdl_RefinancingOfMortgage
Namespace Prefix:	bdl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of the total principal payments made during the annual reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_DebtInstrumentAnnualPrincipalPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of reference rate used for variable rate of debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentDescriptionOfVariableRateBasis
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480848/942-470-50-3

+ Details

Name:	us-gaap_DebtInstrumentFrequencyOfPeriodicPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Increase for accrued, but unpaid interest on the debt instrument for the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

+ Details

Name:	us-gaap_DebtInstrumentIncreaseAccruedInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482900/835-30-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482925/835-30-45-2

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-6

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

+ Details

Name:	us-gaap_DebtInstrumentPeriodicPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

+ Details

Name:	us-gaap_LongTermDebtPercentageBearingFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

No definition available.

+ Details

Name:	us-gaap_LongtermDebtPercentageBearingFixedInterestAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_MortgagePayableToUnrelatedThirdPartyOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_MortgagePayableToLenderOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_MortgagePayableToLenderTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_MortgagePayableToLenderThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_RevolvingCreditLineTermLoanPayableToLender1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_PayoffOfTeamLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_MortgagePayableToLenderMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_MortgagePayableToUnrelatedThirdParty1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LoansPayableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_MortgagePayableToLender2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_FinancedInsurancePremiumsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_MortgagePayableToUnrelatedThirdParty3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bdl_MortgagePayable7Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: