Quarterly report pursuant to Section 13 or 15(d)

Property Portfolio (summary of the acquired lease intangible amortization) (Details)

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Property Portfolio (summary of the acquired lease intangible amortization) (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2017
Leases, Acquired-in-Place [Member]    
Property, Plant and Equipment [Line Items]    
Finite-Lived Intangible Assets, Accumulated Amortization $ 353,263 $ 633,785
Lease Costs [Member]    
Property, Plant and Equipment [Line Items]    
Finite-Lived Intangible Assets, Accumulated Amortization 106,045 169,123
Above Market Leases [Member]    
Property, Plant and Equipment [Line Items]    
Finite-Lived Intangible Assets, Accumulated Amortization 14,276 17,711
Below Market Lease [Member]    
Property, Plant and Equipment [Line Items]    
Finite-Lived Intangible Assets, Accumulated Amortization 18,825 31,027
market ground lease [Member]    
Property, Plant and Equipment [Line Items]    
Finite-Lived Intangible Assets, Accumulated Amortization $ 1,703 $ 2,270