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Income Taxes (Narrative) (Details) (USD $)
3 Months Ended
Oct. 31, 2014
Operating Loss Carryforwards [Line Items]  
Federal statutory tax rate 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
State statutory tax rate 3.00%us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
Netherlands [Member]  
Operating Loss Carryforwards [Line Items]  
Deferred Tax Assets, Net 0us-gaap_DeferredTaxAssetsLiabilitiesNet
/ us-gaap_CurrencyAxis
= aris_NetherlandsMember
Federal [Member]  
Operating Loss Carryforwards [Line Items]  
Operating Loss Carryforwards 6,305,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_DomesticCountryMember
Accumulated net operating loss carryforwards 6,305,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_DomesticCountryMember
State [Member]  
Operating Loss Carryforwards [Line Items]  
Operating Loss Carryforwards 3,271,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
Accumulated net operating loss carryforwards 3,271,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember