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INVESTMENTS IN REAL PROPERTY (Details) | 3 Months Ended
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Apr. 01, 2017 USD ($)
INVESTMENT IN REAL PROPERTY FINANCED BY DEBT [Abstract] |
Purchase price of property | $ 2,470,000
Proceeds from line of credit | $ 2,000,000

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

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- Definition The cash outflow from the acquisition of real estate property. + References No definition available. + Details
Name: | bdl_PaymentsToAcquireRealPropertyImprovementsAndVacantRealProperty
Namespace Prefix: | bdl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration