Segments (Net Operating Income by Segment) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Net Operating Income [Abstract]
Rental income	$ 23,590,011	$ 16,378,195
Property and related expenses	(8,515,151)	(5,749,279)
Asset impairment		(950,000)
Gain (loss) on sales of real estate, net	6,243,640	5,120,699
General and administrative expenses	(4,672,783)	(4,578,517)
Interest expense	(6,007,101)	(4,439,232)
Interest income	150,008	85,806
Net loss	(2,027,498)	(853,601)
Significant Reconciling Items [Member]
Net Operating Income [Abstract]
Net operating income, as defined	15,332,319	9,936,986
General and administrative expenses	(5,193,888)	(5,555,449)
Depreciation and amortization	(7,784,917)	(5,383,266)
Interest expense	(10,774,660)	(5,595,329)
Interest income	150,008	85,806
Gain on extinguishment of debt		536,952
Net loss	(2,027,498)	(853,601)
Industrial Office Properties [Member] | Significant Reconciling Items [Member]
Net Operating Income [Abstract]
Rental income	18,497,621	11,800,836
Property and related expenses	(7,170,550)	(4,769,577)
Asset impairment		(950,000)
Net operating income, as defined	11,327,071	6,081,259
Residential Properties [Member] | Significant Reconciling Items [Member]
Net Operating Income [Abstract]
Rental income	1,521,148	2,065,327
Property and related expenses	(63,875)	(102,082)
Net operating income, as defined	1,457,273	1,963,245
Retail Properties [Member] | Significant Reconciling Items [Member]
Net Operating Income [Abstract]
Rental income	3,960,076	2,607,744
Property and related expenses	(1,280,726)	(877,620)
Net operating income, as defined	2,679,350	1,730,124
Self Storage Properties [Member] | Significant Reconciling Items [Member]
Net Operating Income [Abstract]
Rental income	1,052,266	3,428,503
Property and related expenses	(1,183,641)	(3,266,145)
Net operating income, as defined	$ (131,375)	$ 162,358