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Fair Value Measurements (Details) - USD ($) | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | $ 3,301,108 | $ 2,383,308
Interest rate swaps [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Assets, at Fair Value | 98,562 | 274,013
Interest Rate Derivative Liabilities, At Fair Value | 3,301,108 | 2,383,308
Interest rate swaps [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Assets, at Fair Value | 0 | 0
Interest Rate Derivative Liabilities, At Fair Value | 0 | 0
Interest rate swaps [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Assets, at Fair Value | 98,562 | 274,013
Interest Rate Derivative Liabilities, At Fair Value | 3,301,108 | 2,383,308
Interest rate swaps [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Assets, at Fair Value | 0 | 0
Interest Rate Derivative Liabilities, At Fair Value | 0 | 0
Mortgage notes payable [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 101,584,368 | 106,762,238
Mortgage notes payable [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 0 | 0
Mortgage notes payable [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 0 | 0
Mortgage notes payable [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 105,033,267 | 107,814,314
Unsecured term loan [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 100,000,000 | 100,000,000
Unsecured term loan [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 0 | 0
Unsecured term loan [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 0 | 0
Unsecured term loan [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 97,741,973 | 97,918,642
Senior unsecured notes [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 100,000,000 |
Senior unsecured notes [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 0 |
Senior unsecured notes [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 0 |
Senior unsecured notes [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 99,645,428 |
Revolving Credit Facility [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 18,000,000 | 15,000,000
Revolving Credit Facility [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 0 | 0
Revolving Credit Facility [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | 18,000,000 | 15,000,000
Revolving Credit Facility [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Interest Rate Derivative Liabilities, At Fair Value | $ 0 | $ 0

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