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Income Taxes (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 27, 2014 | Jun. 28, 2014 | Mar. 29, 2014 | Dec. 28, 2013 | Sep. 28, 2013 | Jun. 29, 2013 | Mar. 30, 2013 | Jan. 03, 2015 | Dec. 28, 2013
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |  |  |
Document Fiscal Year Focus |  |  |  |  |  |  |  | 2013 |
Number of previous periods of cumulative income before infrequent and unusual items |  |  |  |  |  |  |  | 3 years |
Noncash reversal of valuation allowance |  |  |  |  |  |  |  |  | $ 2,150,000 arci_DeferredIncomeTaxAssetValuationAllowanceNoncashReversal
Non-cash reversal of deferred tax assets |  |  |  |  |  |  |  | 0 us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount | 2,150,000 us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Operating loss carryforward utilized |  |  |  |  |  |  |  |  | 372,000 arci_DeferredTaxAssetOperatingLossCarryforwardUtilized
Provision for income taxes |  |  |  |  |  |  |  |  |
Federal |  |  |  |  |  |  |  | 852,000 us-gaap_CurrentFederalTaxExpenseBenefit | 123,000 us-gaap_CurrentFederalTaxExpenseBenefit
State |  |  |  |  |  |  |  | 146,000 us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 107,000 us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Foreign |  |  |  |  |  |  |  | 29,000 us-gaap_CurrentForeignTaxExpenseBenefit | (71,000)us-gaap_CurrentForeignTaxExpenseBenefit
Current tax expense |  |  |  |  |  |  |  | 1,027,000 us-gaap_CurrentIncomeTaxExpenseBenefit | 159,000 us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred tax expense — domestic |  |  |  |  |  |  |  | (318,000)arci_DeferredDomesticIncomeTaxExpenseBenefit | (1,569,000)arci_DeferredDomesticIncomeTaxExpenseBenefit
Deferred tax expense — foreign |  |  |  |  |  |  |  | 5,000 us-gaap_DeferredForeignIncomeTaxExpenseBenefit | 2,000 us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Provision for income taxes | 145,000 us-gaap_IncomeTaxExpenseBenefit | 302,000 us-gaap_IncomeTaxExpenseBenefit | 529,000 us-gaap_IncomeTaxExpenseBenefit | (1,780,000)us-gaap_IncomeTaxExpenseBenefit | 227,000 us-gaap_IncomeTaxExpenseBenefit | 145,000 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | 714,000 us-gaap_IncomeTaxExpenseBenefit | (1,408,000)us-gaap_IncomeTaxExpenseBenefit
Reconciliation of provision for income taxes with federal statutory rate |  |  |  |  |  |  |  |  |
Income tax expense at statutory rate |  |  |  |  |  |  |  | 512,000 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate | 1,000,000 us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
Portion attributable to noncontrolling interest at statutory rate |  |  |  |  |  |  |  | (8,000)arci_IncomeTaxReconciliationPortionAttributabletoNonControllingInterest | (107,000)arci_IncomeTaxReconciliationPortionAttributabletoNonControllingInterest
State tax expense, net of federal tax effect |  |  |  |  |  |  |  | 69,000 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes | 188,000 us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Permanent differences |  |  |  |  |  |  |  | 175,000 us-gaap_IncomeTaxReconciliationNondeductibleExpense | 61,000 us-gaap_IncomeTaxReconciliationNondeductibleExpense
Change in valuation allowance |  |  |  |  |  |  |  | (11,000)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance | (372,000)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Recognition of tax effect for the cumulative undistributed earnings from Canada |  |  |  |  |  |  |  | (44,000)arci_IncomeTaxReconciliationForeignEarningsPermanentlyReinvested | (54,000)arci_IncomeTaxReconciliationForeignEarningsPermanentlyReinvested
Reversal of deferred tax asset valuation allowance |  |  |  |  |  |  |  | 0 arci_IncomeTaxReconciliationReversalOfDeferredTaxAssetsValuationAllowance |
Adjustment of deferred tax assets |  |  |  |  |  |  |  | 7,000 arci_IncomeTaxReconciliationDeferredTaxAssets | (1,000)arci_IncomeTaxReconciliationDeferredTaxAssets
Foreign income tax payable true-up |  |  |  |  |  |  |  | 0 arci_IncomeTaxReconciliationForeignIncomeTaxPayableTrueUp | (4,000)arci_IncomeTaxReconciliationForeignIncomeTaxPayableTrueUp
Other |  |  |  |  |  |  |  | 14,000 us-gaap_IncomeTaxReconciliationOtherAdjustments | 31,000 us-gaap_IncomeTaxReconciliationOtherAdjustments
Provision for income taxes at effective tax rate | 145,000 us-gaap_IncomeTaxExpenseBenefit | 302,000 us-gaap_IncomeTaxExpenseBenefit | 529,000 us-gaap_IncomeTaxExpenseBenefit | (1,780,000)us-gaap_IncomeTaxExpenseBenefit | 227,000 us-gaap_IncomeTaxExpenseBenefit | 145,000 us-gaap_IncomeTaxExpenseBenefit | 0 us-gaap_IncomeTaxExpenseBenefit | 714,000 us-gaap_IncomeTaxExpenseBenefit | (1,408,000)us-gaap_IncomeTaxExpenseBenefit
Income before income taxes and noncontrolling interest |  |  |  |  |  |  |  |  |
United States |  |  |  |  |  |  |  | 1,411,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic | 2,291,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
Canada |  |  |  |  |  |  |  | 98,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign | (237,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
Income (loss) before income taxes and noncontrolling interest | 392,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 645,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 1,394,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 504,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 1,173,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 539,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | (162,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 1,509,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 2,054,000 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Deferred tax assets: |  |  |  |  |  |  |  |  |
Net operating loss carryforwards |  |  |  | 317,000 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards |  |  |  | 309,000 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | 317,000 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Federal and state tax credits |  |  |  | 199,000 arci_DeferredTaxAssetsFederalAndStateTaxCredit |  |  |  | 242,000 arci_DeferredTaxAssetsFederalAndStateTaxCredit | 199,000 arci_DeferredTaxAssetsFederalAndStateTaxCredit
Reserves |  |  |  | 210,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves |  |  |  | 246,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves | 210,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves
Accrued expenses |  |  |  | 1,541,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities |  |  |  | 1,963,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities | 1,541,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
Share-based compensation |  |  |  | 307,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits |  |  |  | 348,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits | 307,000 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits
Deferred gain |  |  |  | 142,000 us-gaap_DeferredTaxAssetsDeferredGainOnSaleLeasebackTransaction |  |  |  | 0 us-gaap_DeferredTaxAssetsDeferredGainOnSaleLeasebackTransaction | 142,000 us-gaap_DeferredTaxAssetsDeferredGainOnSaleLeasebackTransaction
Property and equipment |  |  |  | 21,000 us-gaap_DeferredTaxAssetsInvestments |  |  |  | 14,000 us-gaap_DeferredTaxAssetsInvestments | 21,000 us-gaap_DeferredTaxAssetsInvestments
Property and equipment |  |  |  | 0 us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment |  |  |  | 25,000 us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment | 0 us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment
Total deferred tax assets |  |  |  | 2,737,000 us-gaap_DeferredTaxAssetsGross |  |  |  | 3,147,000 us-gaap_DeferredTaxAssetsGross | 2,737,000 us-gaap_DeferredTaxAssetsGross
Deferred Tax Liabilities: |  |  |  |  |  |  |  |  |
Investments |  |  |  | (1,211,000)us-gaap_DeferredTaxLiabilitiesInvestments |  |  |  | (1,315,000)us-gaap_DeferredTaxLiabilitiesInvestments | (1,211,000)us-gaap_DeferredTaxLiabilitiesInvestments
Prepaid expenses |  |  |  | (148,000)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses |  |  |  | (142,000)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses | (148,000)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses
Property and equipment |  |  |  | (29,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment |  |  |  | (38,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | (29,000)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Total deferred tax liabilities |  |  |  | 1,388,000 us-gaap_DeferredIncomeTaxLiabilities |  |  |  | 1,495,000 us-gaap_DeferredIncomeTaxLiabilities | 1,388,000 us-gaap_DeferredIncomeTaxLiabilities
Valuation allowance |  |  |  | (613,000)us-gaap_DeferredTaxAssetsValuationAllowance |  |  |  | (604,000)us-gaap_DeferredTaxAssetsValuationAllowance | (613,000)us-gaap_DeferredTaxAssetsValuationAllowance
Net deferred tax liabilities |  |  |  | (736,000)us-gaap_DeferredTaxLiabilities |  |  |  | (1,048,000)us-gaap_DeferredTaxLiabilities | (736,000)us-gaap_DeferredTaxLiabilities
Percentage of likelihood of realization that the tax position must exceed in order for the amount to be recognized |  |  |  |  |  |  |  | 50.00%arci_TaxBenefitsRecognitionBasisForUncertainTaxPositionLikelihoodRealizationGreaterThanPercentage |
US |  |  |  |  |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |  |  |  |  |
Non-cash reversal of deferred tax assets |  |  |  |  |  |  |  |  | 2,522 us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember
Provision for income taxes |  |  |  |  |  |  |  |  |
Provision for income taxes |  |  |  |  |  |  |  |  | 1,114 us-gaap_IncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember
Reconciliation of provision for income taxes with federal statutory rate |  |  |  |  |  |  |  |  |
Provision for income taxes at effective tax rate |  |  |  |  |  |  |  |  | $ 1,114 us-gaap_IncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember

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