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INVESTMENTS IN NON-CONSOLIDATED ENTITIES (Details Narrative) (USD $)
 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Oct. 19, 2012
Apr. 10, 2012
Dec. 31, 2009
Rooms
Sep. 18, 2013
Jun. 27, 2013
Sep. 30, 2013
sqft
Sep. 16, 2013
Cost of real estate sold $ 19,350,133us-gaap_RealEstateCostOfRealEstateSold   $ 11,465,558us-gaap_RealEstateCostOfRealEstateSold              
Payments on notes payable (15,607,000)us-gaap_RepaymentsOfNotesPayable (172,000)us-gaap_RepaymentsOfNotesPayable (148,000)us-gaap_RepaymentsOfNotesPayable              
Payments on notes payable - related party (549,000)us-gaap_RepaymentsOfRelatedPartyDebt (5,872,000)us-gaap_RepaymentsOfRelatedPartyDebt (1,000,000)us-gaap_RepaymentsOfRelatedPartyDebt              
Advances to related party (348,000)reit_PaymentAdvancesToRelatedParty (391,000)reit_PaymentAdvancesToRelatedParty                 
Settlement of environmental liability   112,000us-gaap_GainLossRelatedToLitigationSettlement                
Accounts receivable - related party 262,000us-gaap_AccountsReceivableRelatedParties 622,000us-gaap_AccountsReceivableRelatedParties                
Derivative Financial Instruments                    
Increase (decreease) in fair value of swap 20,000us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax (55,000)us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax                 
PTC/BSQ Holding Company LLC (Member)                    
Percentage of ownership interest 20.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		 20.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		                
GLA 442,072us-gaap_NetRentableArea
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		                  
Percentage of ownership interest owned by others 80.00%reit_PercentageOfOwnershipInterestOwnedByThirdParty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		                  
Loan amount               44,400,000us-gaap_SecuredDebt
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		    
Incurred redevelopment costs 11,600,000reit_IncurredRedevelopmentCosts
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		                  
Expected amount of redevelopment costs 11,900,000reit_RedevelopmentCostsExpectedAmount
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		                  
Payments on notes payable - related party   1,400,000us-gaap_RepaymentsOfRelatedPartyDebt
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		                
Proceeds from distribution received   1,900,000us-gaap_EquityMethodInvestmentDividendsOrDistributions
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		                
PTC/BSQ Holding Company LLC (Member) | Interest Rate Swap (Member)                    
Derivative Financial Instruments                    
Notional amount 54,000,000invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		                  
Fixed interest rate 2.51%us-gaap_DerivativeFixedInterestRate
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		                  
PTC/BSQ Holding Company LLC (Member) | Refinanced Mortgage (Member)                    
Loan amount 54,000,000us-gaap_SecuredDebt
/ us-gaap_DebtInstrumentAxis
= reit_RefinancedDebtMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		                  
Future funding available under loan 4,500,000us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
/ us-gaap_DebtInstrumentAxis
= reit_RefinancedDebtMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_PtcBsqHoldingCompanyLlcMember		                  
Amreit Casa Linda Lp (Member)                    
Percentage of ownership interest 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		                
GLA 324,509us-gaap_NetRentableArea
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		                  
Percentage of ownership interest owned by others 50.00%reit_PercentageOfOwnershipInterestOwnedByThirdParty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		                  
Mortgage loan interest rate cap 3.00%us-gaap_MortgageLoansOnRealEstateMaximumInterestRateInRange
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		                  
Incurred redevelopment costs 2,600,000reit_IncurredRedevelopmentCosts
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		                  
Expected amount of redevelopment costs 3,000,000reit_RedevelopmentCostsExpectedAmount
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		                  
Settlement of environmental liability   224,000us-gaap_GainLossRelatedToLitigationSettlement
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		                
Derivative Financial Instruments                    
Increase (decrease) in fair value of non-hedge cap (51,000)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		 11,000us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		                
Amreit Casa Linda Lp (Member) | Albertson [Member]                    
Square footage of real estate property 59,561us-gaap_AreaOfRealEstateProperty
/ us-gaap_ConcentrationRiskByTypeAxis
= reit_CustomerConcentrationRisk5Member
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		                  
Amreit Casa Linda Lp (Member) | Refinanced Mortgage (Member)                    
Loan amount 38,000,000us-gaap_SecuredDebt
/ us-gaap_DebtInstrumentAxis
= reit_RefinancedDebtMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		                  
Future funding available under loan 4,500,000us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
/ us-gaap_DebtInstrumentAxis
= reit_RefinancedDebtMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitCasaLindaLpMember		                  
Woodlake Pointe (Member)                    
Percentage of ownership interest 30.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		 30.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                
Square footage of real estate property                 45,000us-gaap_AreaOfRealEstateProperty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		  
GLA 82,120us-gaap_NetRentableArea
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                  
Percentage of ownership interest owned by others 70.00%reit_PercentageOfOwnershipInterestOwnedByThirdParty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                  
Repayment of debt on real property   6,600,000us-gaap_RepaymentsOfSecuredDebt
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                
Proceeds from sale property   12,000,000us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                
Payments on notes payable - related party   650,000us-gaap_RepaymentsOfRelatedPartyDebt
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                
Proceeds from distribution received   1,500,000us-gaap_EquityMethodInvestmentDividendsOrDistributions
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                
Impairment of the property 600,000us-gaap_ImpairmentOfRealEstate
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                  
Fair value of property 8,200,000reit_FairValueRealEstateInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                  
Woodlake Pointe (Member) | M I G I V (Member)                    
Percentage of ownership interest owned by others 60.00%reit_PercentageOfOwnershipInterestOwnedByThirdParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= reit_MIGIVMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                  
Woodlake Pointe (Member) | Amreit Realty Investment Corporation (Member)                    
Percentage of ownership interest owned by others 10.00%reit_PercentageOfOwnershipInterestOwnedByThirdParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= reit_AmreitRealtyInvestmentCorporationMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                  
Woodlake Pointe (Member) | Impaired Multi-Tenant Retail Property                    
Impairment of the property 2,000,000us-gaap_ImpairmentOfRealEstate
/ us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis
= reit_ImpairedRealEstateMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_WoodlakePointeMember		                  
5433 Westheimer Lp (Member)                    
Investment subject to risk 2,400,000reit_InvestmentSubjectToRisk
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                  
Percentage of ownership interest 57.50%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		 57.50%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                
GLA 133,881us-gaap_NetRentableArea
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                  
Number of rooms           152reit_NumberOfRooms
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		        
Cost of real estate sold           31,700,000us-gaap_RealEstateCostOfRealEstateSold
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		        
Percentage of ownership interest owned by others 42.50%reit_PercentageOfOwnershipInterestOwnedByThirdParty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                  
Repayment of debt on real property         3,800,000us-gaap_RepaymentsOfSecuredDebt
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		          
Mortgage loans on real estate term       5 years            
Loan amount 8,200,000us-gaap_SecuredDebt
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		     8,700,000us-gaap_SecuredDebt
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		            
Percentage of partner's ownership interest in joint venture 25.00%reit_PercentageOfOwnershipInterestInJointVenture
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                  
Incurred redevelopment costs 6,600,000reit_IncurredRedevelopmentCosts
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                  
Expected amount of redevelopment costs 8,200,000reit_RedevelopmentCostsExpectedAmount
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                  
Proceeds from sale property         28,700,000us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		          
Advances to related party 312,000reit_PaymentAdvancesToRelatedParty
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                  
Accounts receivable - related party 400,000us-gaap_AccountsReceivableRelatedParties
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                  
5433 Westheimer Lp (Member) | Note Payable (Member)                    
Loan face amount 312,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_NotesPayableOtherPayablesMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                  
Borrowing capacity of note 1,500,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= us-gaap_NotesPayableOtherPayablesMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                  
Interest rate 10.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= us-gaap_NotesPayableOtherPayablesMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_FiveFourThreeThreeWestheimerLpMember		                  
Amreit Woodlake Square Lp (Member)                    
Percentage of ownership interest   3.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitWoodlakeSquareLpMember		                
Proceeds from sale property             $ 41,600,000us-gaap_ProceedsFromSaleOfRealEstateHeldforinvestment
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitWoodlakeSquareLpMember		      
Amreit Woodlake Square Lp (Member) | M I G I V (Member)                    
Percentage of ownership interest owned by others                   6.00%reit_PercentageOfOwnershipInterestOwnedByThirdParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= reit_MIGIVMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitWoodlakeSquareLpMember
Amreit Woodlake Square Lp (Member) | Amreit Realty Investment Corporation (Member)                    
Percentage of ownership interest owned by others                   1.00%reit_PercentageOfOwnershipInterestOwnedByThirdParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= reit_AmreitRealtyInvestmentCorporationMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitWoodlakeSquareLpMember
Amreit Woodlake Square Lp (Member) | Institutional Partner (Member)                    
Percentage of ownership interest owned by others                   90.00%reit_PercentageOfOwnershipInterestOwnedByThirdParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= reit_InstitutionalPartnerMember
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= reit_AmreitWoodlakeSquareLpMember