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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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