RECENT RESTAURANT DISPOSITIONS AND OTHER DEVELOPMENTS (Details) $ in Thousands	12 Months Ended
Sep. 27, 2025 USD ($) condominiumUnit	Sep. 28, 2024 USD ($)	Nov. 26, 2024
Recent Restaurant Dispositions [Line Items]
Loss from restaurant disposition	$ (173)	$ 876
Proceeds from termination of lease	5,500	0
Gain on termination, net of expenses	5,235	0
Gain from contract termination, distributed to equity holders	$ 1,710
Number of condominium units sold \| condominiumUnit	3
Number of condominium units owned \| condominiumUnit	14
Proceeds from sale of condominiums	$ 1,203	0
Gain on sale of condominiums	594	0
Ark Hollywood/Tampa Investment LLC
Recent Restaurant Dispositions [Line Items]
Ownership percentage by parent			65.00%
Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations \| El Rio Grande
Recent Restaurant Dispositions [Line Items]
Loss from restaurant disposition		$ 876
Additional gain from restaurant disposition	$ 173

Gain From Contract Termination, Distributed To Equity Holders

No definition available.

Name:	arkr_GainFromContractTerminationDistributedToEquityHolders
Namespace Prefix:	arkr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Gain (Loss) On Disposition Of Business, Additional Recognized

+ References

No definition available.

+ Details

Name:	arkr_GainLossOnDispositionOfBusinessAdditionalRecognized
Namespace Prefix:	arkr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of Condominium Units Owned

+ References

No definition available.

+ Details

Name:	arkr_NumberOfCondominiumUnitsOwned
Namespace Prefix:	arkr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of Condominium Units Sold

+ References

No definition available.

+ Details

Name:	arkr_NumberOfCondominiumUnitsSold
Namespace Prefix:	arkr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Proceeds From Termination Of Lease

+ References

No definition available.

+ Details

Name:	arkr_ProceedsFromTerminationOfLease
Namespace Prefix:	arkr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

Name:	arkr_RecentRestaurantDispositionsLineItems
Namespace Prefix:	arkr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482130/360-10-45-5

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-3

+ Details

Name:	us-gaap_GainLossOnDispositionOfAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

+ References

+ Details

Name:	us-gaap_GainLossOnSaleOfBusiness
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of gain (loss) on termination of lease before expiration of lease term.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479092/842-20-40-1

+ Details

Name:	us-gaap_GainLossOnTerminationOfLease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-12

+ Details

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

- Details

Name:	srt_OwnershipAxis=arkr_ArkHollywoodTampaInvestmentLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupDisposedOfByMeansOtherThanSaleNotDiscontinuedOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=arkr_ElRioGrandeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: