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LEASEHOLD INTERESTS, NET (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2023 | Oct. 01, 2022
Leasehold Interests, Net [Abstract] |  |
Leasehold amortization expense | $ 23,000 | $ 32,000

X
- Definition Amortization of leasehold purchases. + References No definition available. + Details
Name: | bdl_LeaseholdAmortizationExpense
Namespace Prefix: | bdl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | bdl_LeaseholdInterestsNetAbstract
Namespace Prefix: | bdl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration