Unamortized Lease Commissions and Loan Costs (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Leasing commissions		$ 10,797	$ 8,720
Deferred legal cost		436	0
Deferred financing cost		4,071	4,071
Total cost		15,304	12,791
Less: leasing commissions accumulated amortization		(4,753)	(3,597)
Less: deferred legal cost accumulated amortization		66	0
Less: deferred financing cost accumulated amortization		(2,063)	(1,111)
Total cost, net of accumulated amortization	[1]	$ 8,422	$ 8,083

[1] Assets of consolidated Variable Interest Entities included in the total assets