Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Mortgages Notes Payable	$ 68,003	$ 69,067
Unamortized Debt Issuance Expense	(2,800)	(3,100)
Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Mortgages Notes Payable	68,820	70,007
Unamortized Debt Issuance Expense	(817)	(940)
Total principal	68,003	69,067
April 4, 2018 [Member] | Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Mortgages Notes Payable	25,000	25,000
January 2020 [Member] | Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Mortgages Notes Payable	4,357	5,114
February 2020 [Member] | Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Mortgages Notes Payable	3,006	3,049
January 1, 2023 [Member] | Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Mortgages Notes Payable	23,640	23,640
September 2023 [Member] | Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Mortgages Notes Payable	5,213	5,294
July 2026 [Member] | Mortgage Notes Payable [Member]
Debt Instrument [Line Items]
Mortgages Notes Payable	$ 7,604	$ 7,910