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ORGANIZATION AND BASIS OF PRESENTATION (Details)
Mar. 31, 2015
ORGANIZATION AND BASIS OF PRESENTATION CONSISTS OF THE FOLLOWING:  
Percentage of common stock owned by related parties 86.70%fil_PercentageOfCommonStockOwnedByRelatedParties
Percentage of common stock owned by ARL of Transcontinental Realty Investors Inc. 80.90%fil_PercentageOfCommonStockOwnedByArlOfTranscontinentalRealtyInvestorsInc
Owned percentage of subsidiary TCI in Income Opportunity Realty Investors 81.10%fil_OwnedPercentageOfSubsidiaryTCIInIncomeOpportunityRealtyInvestors
Number of interests in a total property portfolio of income producing properties 47fil_NumberOfInterestsInATotalPropertyPortfolioOfIncomeProducingProperties
Number of commercial properties 9fil_NumberOfCommercialProperties
Number of office buildings 4fil_NumberOfOfficeBuildings
Number of industrial warehouses 1fil_NumberOfIndustrialWarehouses
Number of retailcenters 3fil_NumberOfRetailcenters
Number of golf course 1fil_NumberOfGolfCourse
Area of rental square feet (In Millions) 2.1fil_AreaOfRentalSquareFeetInMillions
Number of apartment communities 38fil_NumberOfApartmentCommunities
Apartment communities units total 6,344fil_ApartmentCommunitiesUnitsTotal
Area of acres of developed and undeveloped land 4,200fil_AreaOfAcresOfDevelopedAndUndevelopedLand