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Real Estate Assets Parenthetical Tagging (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Depreciation $ 5,741,590us-gaap_Depreciation $ 5,171,703us-gaap_Depreciation $ 4,029,711us-gaap_Depreciation
Consolidated Properties [Member]      
Depreciation 4,800,000us-gaap_Depreciation
/ us-gaap_RealEstatePropertiesAxis
= us-gaap_ConsolidatedPropertiesMember		 3,800,000us-gaap_Depreciation
/ us-gaap_RealEstatePropertiesAxis
= us-gaap_ConsolidatedPropertiesMember		  
Variable Interest Entity, Primary Beneficiary [Member]      
Depreciation $ 940,000us-gaap_Depreciation
/ us-gaap_RealEstatePropertiesAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember		 $ 1,400,000us-gaap_Depreciation
/ us-gaap_RealEstatePropertiesAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember