Name:	arkr_INVESTMENTINNEWMEADOWLANDSRACETRACKDetailsLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Interest rate on loan.

No definition available.

Name:	arkr_InterestRateOnLoan
Namespace Prefix:	arkr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Loan maturity date.

No definition available.

Name:	arkr_LoanMaturityDate
Namespace Prefix:	arkr_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

Loans and advances to related party.

No definition available.

Name:	arkr_LoansAndAdvancesToRelatedParty
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Maximum loss relating to Vies included in other current assets.

No definition available.

Name:	arkr_MaximumLossRelatingToVIEIncludedInOtherCurrentAssets
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Principal and accrued interest included in other assets.

No definition available.

Name:	arkr_PrincipalAndAccruedInterestIncludedInOtherAssets
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Profit participation percentage.

No definition available.

Name:	arkr_ProfitParticipationPercentage
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Period Type:	instant

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

No definition available.

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The cash outflow associated with the purchase of noncontrolling interest during the period.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The cash outflow associated with the acquisition of a controlling interest in another entity or an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133