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Amount of income (loss) from continuing operations, resulting from the assumption that dilutive. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocatable to non-controlling interests.

No definition available.

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

The amount of net income (loss) from continuing operations per each share of stock options during the reporting period.

No definition available.

Name:	arkr_IncomeLossFromContinuingOperationsPerShareStockOptionsAdjustement
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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of stock options from continuing operations.

No definition available.

Name:	arkr_IncrementalCommonSharesAttributableToStockOptionsContinuingOperations
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Balance Type:	na
Period Type:	duration

- Details

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The average number of shares or units from continuing operations issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

No definition available.

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Number of [basic] shares or units from continuing operations, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

No definition available.

Name:	arkr_WeightedAverageNumberOfSharesOutstandingBasicContinuingOperations
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The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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