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Summary of Significant Accounting Policies (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Mar. 31, 2018
Accounting Policies [Line Items]
Deferred Tax Liabilities, Gross	$ 475		$ 475		$ 475
Income Tax Expense (Benefit)	216	$ 207	266	$ 329
Deferred Rent Receivables, Net	14,600		14,600		12,900
Reimbursement Revenue			4,000		1,400
Cash in Excess of FDIC Insured Amounts	$ 8,000		$ 8,000		$ 57,500
Weighted Average Number Diluted Shares Outstanding Adjustment	341,784		177,691
Common Stock, Shares Authorized	45,000,000		45,000,000		45,000,000
Common Stock [Member]
Accounting Policies [Line Items]
Share Price						$ 48.00
Common Stock [Member] | Forward Sale Agreement [Member]
Accounting Policies [Line Items]
Common Stock, Shares Authorized						3,500,000

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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