Aggregate insurance coverage agreed to be paid by insurance company.

No definition available.

Name:	bdl_AggregateInsuranceCoverage
Namespace Prefix:	bdl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Gain on business interruption insurance coverage.

+ References

No definition available.

+ Details

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

- Definition

Insurance proceeds received from casualty.

+ References

No definition available.

+ Details

Name:	bdl_InsuranceProceedsReceivedFromCasualty
Namespace Prefix:	bdl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount recovered from insurance, net of costs and losses.

+ References

No definition available.

+ Details

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

- Definition

Resulting loss on damage to property.

+ References

No definition available.

+ Details

Name:	bdl_ResultingLossOnDamageToProperty
Namespace Prefix:	bdl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

+ Details

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

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_InsuranceClaimsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	bdl_PropertyNameAxis=bdl_StoreNumber19Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

CASUALTY LOSS (Details) - USD ($)	3 Months Ended	12 Months Ended
CASUALTY LOSS (Details) - USD ($)	Dec. 29, 2018	Oct. 03, 2020	Sep. 28, 2019
Loss Contingencies [Line Items]
Insurance recovery, net of casualty loss			$ 602,000
Insurance Claims [Member] \| 2505 N. University Drive, Hollywood, Florida Property [Member]
Loss Contingencies [Line Items]
Aggregate insurance coverage agreed to be paid by insurance company	$ 1,975,000
Loss sustained on building and business personal property	1,373,000
Insurance proceeds received from casualty	1,200,000
Resulting loss on damage to property	173,000
Gain on business interruption insurance coverage	775,000
Insurance recovery, net of casualty loss	$ 602,000