Segments (Capital Expenditures) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]
Acquisition of operating properties	$ 15,774,855	$ 42,528,263
Capital expenditures and tenant improvements	3,713,626	2,354,988
Acquisition of retail properties		2,850,000
Total real estate investments	19,488,481	44,883,251
Industrial Office Properties [Member]
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]
Acquisition of operating properties		33,958,263
Capital expenditures and tenant improvements	3,629,586	2,313,655
Residential Properties [Member]
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]
Acquisition of operating properties	15,774,855	5,720,000
Retail Properties [Member]
Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Abstract]
Capital expenditures and tenant improvements	$ 84,040	$ 41,333