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Real Estate Assets and Lease Intangibles, Acquisitions of Properties (Details) (USD $) |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 12 Months Ended | 1 Months Ended | 6 Months Ended |
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Jun. 30, 2014 | Dec. 31, 2013 | Feb. 28, 2014 6 Model Home properties in Pennsylvania [Member] Unit | Jun. 30, 2014 Sparky's Lancaster Self-Storage [Member] | Dec. 31, 2013 Sparky's Lancaster Self-Storage [Member] | Jun. 30, 2014 Model Home Properties [Member] | Dec. 31, 2013 Model Home Properties [Member] | Apr. 30, 2014 Bismarck Office Building [Member] sqft | Jun. 30, 2014 Bismarck Office Building [Member] | Dec. 31, 2013 Bismarck Office Building [Member]
Real Estate Properties [Line Items] |  |  |  |  |  |  |  |  |  |
Number of units acquired (in units) |  |  | 6 |  |  |  |  |  |  |
Purchase price of property acquired |  |  | $ 1,800,000 |  |  |  |  | $ 5,400,000 |  |
Cash payment for the properties acquired |  |  | 700,000 |  |  |  |  | 2,200,000 |  |
Mortgage notes payable | 95,421,185 | 89,551,724 | 1,100,000 | 1,935,127 | 1,965,504 | 10,223,345 | 12,438,797 | 3,200,000 | 3,353,357 | 0
Interest rate (in hundredths) |  |  |  | 5.00% |  |  |  | 6.12% | 6.12% |
Maturity date |  |  |  | Jun. 01, 2020 |  |  |  |  | Oct. 01, 2016 |
Rentable square feet |  |  |  |  |  |  |  | 93,000 |  |
Allocated Purchase Price of Properties Acquired [Abstract] |  |  |  |  |  |  |  |  |  |
Land |  |  |  |  | 949,000 | 371,300 | 713,630 |  | 413,000 |
Buildings and other |  |  |  |  | 2,701,000 | 1,410,000 | 345,759 |  | 4,233,700 |
Tenant improvements |  |  |  |  |  | 0 |  |  | 474,400 |
In-place leases |  |  |  |  |  | 0 |  |  | 164,300 |
Leasing costs |  |  |  |  |  | 0 |  |  | 64,600 |
Total purchase price |  |  |  |  | $ 3,650,000 | $ 1,781,300 | $ 1,059,389 |  | $ 5,350,000 |

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