Fair Value Measurements (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Interest Rate Derivative Liabilities, At Fair Value	$ 2,383,308	$ 204,696
Revolving Credit Facility [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Derivative Liabilities, At Fair Value	15,000,000	9,500,000
Fair Value, Inputs, Level 1 [Member] | Revolving Credit Facility [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Derivative Liabilities, At Fair Value	0	0
Fair Value, Inputs, Level 2 [Member] | Revolving Credit Facility [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Derivative Liabilities, At Fair Value	15,000,000	9,500,000
Fair Value, Inputs, Level 3 [Member] | Revolving Credit Facility [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Derivative Liabilities, At Fair Value	0	0
Interest rate swaps [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Derivative Assets, at Fair Value	274,013	679,234
Interest Rate Derivative Liabilities, At Fair Value	2,383,308	204,696
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	274,013	679,234
Interest Rate Derivative Liabilities, At Fair Value	2,383,308	204,696
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	106,762,238	113,897,758
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	107,814,314	108,385,281
Unsecured term loan [Member]
Derivatives, Fair Value [Line Items]
Interest Rate Derivative Liabilities, At Fair Value	100,000,000	35,000,000
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	$ 97,918,642	$ 32,728,011