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Principal pay down and New Maturity Date (Detail) (USD $)
 12 Months Ended
Dec. 31, 2014
Burlingame Equity Investors II, LP  
Notes Payable [Line Items]  
Principal Balance Before Pay down $ 44,000us-gaap_DebtInstrumentFaceAmount
/ aret_MajorShareholdersAxis
= aret_BurlingameEquityInvestorsTwoLPMember
Principal Pay down 26,251aret_DebtInstrumentPrincipalPaymentAmount
/ aret_MajorShareholdersAxis
= aret_BurlingameEquityInvestorsTwoLPMember
Remaining Principal Balance 17,749us-gaap_DebtInstrumentCarryingAmount
/ aret_MajorShareholdersAxis
= aret_BurlingameEquityInvestorsTwoLPMember
Burlingame Equity Investors Master Fund, LP  
Notes Payable [Line Items]  
Principal Balance Before Pay down 506,000us-gaap_DebtInstrumentFaceAmount
/ aret_MajorShareholdersAxis
= aret_BurlingameEquityInvestorsMasterFundLPMember
Principal Pay down 340,749aret_DebtInstrumentPrincipalPaymentAmount
/ aret_MajorShareholdersAxis
= aret_BurlingameEquityInvestorsMasterFundLPMember
Remaining Principal Balance $ 165,251us-gaap_DebtInstrumentCarryingAmount
/ aret_MajorShareholdersAxis
= aret_BurlingameEquityInvestorsMasterFundLPMember