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Segments (Capital Expenditures) (Details) - USD ($)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]    
Acquisition of operating properties, net   $ 7,399,545
Capital expenditures and tenant improvements $ 963,445 749,992
Total real estate investments 963,445 8,149,537
Industrial Office Properties [Member]    
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]    
Capital expenditures and tenant improvements 927,668 748,800
Residential Properties [Member]    
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]    
Acquisition of operating properties, net   7,399,545
Retail Properties [Member]    
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]    
Capital expenditures and tenant improvements $ 35,777 $ 1,192