Summary of Significant Accounting Policies (Details 2) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Year Ending December 31,
2018 (remaining)	$ 5,897
2019	22,184
2020	22,057
2021	21,143
2022	20,928
Thereafter	154,618
Total	246,827
Total	(27,628)	$ (30,350)
Credit Facility Financing Costs [Member]
Year Ending December 31,
2018 (remaining)	142
2019	556
2020	541
2021	28
2022	0
Thereafter	0
Total	1,267
Leasing Costs [Member]
Year Ending December 31,
2018 (remaining)	76
2019	276
2020	302
2021	293
2022	285
Thereafter	1,350
Total	2,582
Lease Intangibles (Assets) [Member]
Year Ending December 31,
2018 (remaining)	6,822
2019	25,643
2020	25,493
2021	24,815
2022	23,737
Thereafter	164,096
Total	270,606
Lease Intangibles (Liability) [Member]
Year Ending December 31,
2018 (remaining)	(1,143)
2019	(4,291)
2020	(4,279)
2021	(3,993)
2022	(3,094)
Thereafter	(10,828)
Total	$ (27,628)