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v3.23.4

COMMON STOCK (Details) - $ / shares | 12 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Common Stock [Abstract] |  |
Number of remaining shares authorized | 65,414 |
Maximum share price | $ 15 |
Stock repurchases, percentage |  | 1.00%

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- Definition Stock Repurchase Program, Maximum Share Price. + References No definition available. + Details
Name: | bdl_StockRepurchaseProgramMaximumSharePrice
Namespace Prefix: | bdl_
Data Type: | dtr:perShareItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | bdl_StockRepurchasesPercentages
Namespace Prefix: | bdl_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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