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STOCK OPTIONS (Details) (USD $)
12 Months Ended
Sep. 27, 2014
Sep. 28, 2013
STOCK OPTIONS (Details) [Line Items]    
Number of Stock Option Plans 2arkr_NumberOfStockOptionPlans  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) 40,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized 248,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures (in Shares) 205,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod  
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in Dollars per share) $ 22.50us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice  
Percentage Of Shares Commencing First Anniversary 50.00%arkr_PercentageOfSharesCommencingFirstAnniversary  
Percentage Of Shares Commencing Second Anniversary 50.00%arkr_PercentageOfSharesCommencingSecondAnniversary  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share) $ 4.03us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 2.62%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 33.80%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 6.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 6 years 3 months  
Share-based Compensation (in Dollars) $ 349,000us-gaap_ShareBasedCompensation $ 317,000us-gaap_ShareBasedCompensation
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options (in Dollars) $ 713,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 1 year 9 months  
Stock Option 2004 Plan [Member]    
STOCK OPTIONS (Details) [Line Items]    
Terminated Unissued Options (in Shares) 400arkr_TerminatedUnissuedOptions
/ us-gaap_AwardTypeAxis
= arkr_StockOption2004PlanMember
 
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years  
Stock Option 2010 Plan [Member]    
STOCK OPTIONS (Details) [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares) 500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= arkr_StockOption2010PlanMember