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RECENT RESTAURANT EXPANSION (Detail) (USD $) | 12 Months Ended
--- | ---
Sep. 29, 2012 | Oct. 01, 2011
Operating Lease Termination Notice Period | 90 days |
Contribution From Landlord |  | $ 1,800,000
Cash Received From Landlord | 1,500,000 |
Construction Value Total |  | 7,000,000
Pre Opening Operating Loss | $ 1,800,000 |

X
- Definition Value of cash received from landlord. + References No definition available. + Details
Name: | arkr_CashReceivedFromLandlord
Namespace Prefix: | arkr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total value of construction. + References No definition available. + Details
Name: | arkr_ConstructionValueTotal
Namespace Prefix: | arkr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Value of contribution from landlord during the period. + References No definition available. + Details
Name: | arkr_ContributionFromLandlord
Namespace Prefix: | arkr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of days for termination of lease period. + References No definition available. + Details
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Namespace Prefix: | arkr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of pre-opening operating loss during the period. + References No definition available. + Details
Name: | arkr_PreOpeningOperatingLoss
Namespace Prefix: | arkr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration