Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Property Portfolio (summary of the acquired lease intangible amortization) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Leases, Acquired-in-Place [Member]    
Property, Plant and Equipment [Line Items]    
Finite-Lived Intangible Assets, Accumulated Amortization $ 521 $ 281
Lease Costs [Member]    
Property, Plant and Equipment [Line Items]    
Finite-Lived Intangible Assets, Accumulated Amortization 244 63
Above Market Leases [Member]    
Property, Plant and Equipment [Line Items]    
Finite-Lived Intangible Assets, Accumulated Amortization 151 3
Below Market Lease [Member]    
Property, Plant and Equipment [Line Items]    
Finite-Lived Intangible Assets, Accumulated Amortization 42 12
market ground lease [Member]    
Property, Plant and Equipment [Line Items]    
Finite-Lived Intangible Assets, Accumulated Amortization $ 4 $ 1