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Real Estate Assets Held For Sale (Details) (Water Vista Property [Member], Subsequent Event [Member], Water Vista Property [Member], USD $)
In Millions, unless otherwise specified
Feb. 05, 2015
Water Vista Property [Member] | Subsequent Event [Member] | Water Vista Property [Member]
  
Property, Plant and Equipment [Line Items]  
Sales price of assets held for sale $ 9.7brt_DisposalGroupIncludingDiscontinuedOperationConsideration
/ us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis
= brt_WaterVistaPropertyMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= brt_WaterVistaPropertyMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember