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VARIABLE INTEREST ENTITIES (Details)	Dec. 31, 2016
Variable Interest Entities [Abstract]
Number of VIEs with Primary Benefits	3

X

- Definition

Number of VIEs with primary benefits.

+ References

No definition available.

+ Details

Name:	arkr_NumberOfVIEsWithPrimaryBenefits
Namespace Prefix:	arkr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

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