Segments (Assets) (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Segment Reporting, Asset Reconciling Item [Line Items]
Land, buildings and improvements, net	$ 198,197,703		$ 160,231,124
Cash and cash equivalents	5,636,002		10,207,001		10,746,536
Other assets, net	7,200,512		5,155,669
TOTAL ASSETS	220,624,938		182,021,344
Significant Reconciling Items [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Land, buildings and improvements, net	208,489,740		170,405,956
Cash and cash equivalents	5,636,002		10,207,001
Other assets, net	6,499,196		1,408,387
TOTAL ASSETS	220,624,938		182,021,344
Industrial Office Properties [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Land, buildings and improvements, net	122,351,316	[1]	85,234,171	[1]
TOTAL ASSETS	130,185,089	[2]	90,589,726	[2]
Residential Properties [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Land, buildings and improvements, net	13,133,827	[1]	23,093,296	[1]
TOTAL ASSETS	13,588,922	[2]	25,434,100	[2]
Retail Properties [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Land, buildings and improvements, net	33,141,294	[1]	21,931,330	[1]
TOTAL ASSETS	34,712,223	[2]	23,354,122	[2]
Self Storage Properties [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Land, buildings and improvements, net	29,107,675	[1]	121,390,988	[1]
TOTAL ASSETS	$ 30,003,506	[2]	$ 31,028,008	[2]

[1] Includes lease intangibles and the land purchase option related to property acquisitions.

[2] Includes land, buildings and improvements, current receivables, deferred rent receivables and deferred leasing costs and other related intangible assets, all shown on a net basis.