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v3.23.4

DEBT (Details) $ in Thousands | Sep. 30, 2023 USD ($)
--- | ---
Debt [Abstract] |
Institutional loans | $ 21,610,000

X
- Definition Amount of premium payable. + References No definition available. + Details
Name: | bdl_AmountOfPremiumPayable
Namespace Prefix: | bdl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration