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Segments (Assets) (Details) - USD ($) | Sep. 30, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Dec. 31, 2013
--- | --- | --- | --- | ---
Segment Reporting Asset Reconciling Item [Line Items] |  |  |  |  |
Cash and cash equivalents |  | $ 11,146,053 | $ 5,636,002 | $ 11,893,187 | $ 10,207,001
Other assets, net |  | 5,630,369 | 4,842,878 |  |
TOTAL ASSETS |  | 238,036,646 | 220,624,938 |  |
Significant Reconciling Items [Member] |  |  |  |  |
Segment Reporting Asset Reconciling Item [Line Items] |  |  |  |  |
Land, buildings and improvements, net |  | 218,418,834 | 208,489,740 |  |
Cash and cash equivalents |  | 11,146,053 | 5,636,002 |  |
Other assets, net |  | 8,471,759 | 6,499,196 |  |
TOTAL ASSETS |  | 238,036,646 | 220,624,938 |  |
Industrial Office Properties [Member] | Significant Reconciling Items [Member] |  |  |  |  |
Segment Reporting Asset Reconciling Item [Line Items] |  |  |  |  |
Land, buildings and improvements, net | [1] | 153,671,739 | 122,351,316 |  |
TOTAL ASSETS | [2] | 166,127,174 | 130,185,089 |  |
Residential Properties [Member] | Significant Reconciling Items [Member] |  |  |  |  |
Segment Reporting Asset Reconciling Item [Line Items] |  |  |  |  |
Land, buildings and improvements, net | [1] | 13,647,962 | 13,133,827 |  |
TOTAL ASSETS | [2] | 14,494,846 | 13,588,922 |  |
Retail Properties [Member] | Significant Reconciling Items [Member] |  |  |  |  |
Segment Reporting Asset Reconciling Item [Line Items] |  |  |  |  |
Land, buildings and improvements, net | [1] | 35,648,243 | 33,141,294 |  |
TOTAL ASSETS | [2] | $ 37,796,814 | 34,712,223 |  |
Self Storage Properties [Member] | Significant Reconciling Items [Member] |  |  |  |  |
Segment Reporting Asset Reconciling Item [Line Items] |  |  |  |  |
Land, buildings and improvements, net | [1] |  | 29,107,675 |  |
TOTAL ASSETS | [2] |  | $ 30,003,506 |  |
[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.

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 + Details
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