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Capital (Tables) | 3 Months Ended
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Mar. 31, 2018
Equity [Abstract] |
Summary of Common Shares Outstanding [Table Text Block] | Detailed below is a roll forward of the Company's common shares outstanding for the three month periods ended March 31, 2018 and 2017:
|  | Three Month Period Ended March 31,
|  | 2018 |  | 2017
Common Shares Outstanding (12/31/2017 and 12/31/2016, respectively) |  | 13,340,217 |  |  | 9,130,897 |
Share Activity: |  |  |  |
Shares repurchased |  | (512,367 | ) |  | — |
Common Shares Outstanding (3/31/2018 and 3/31/2017, respectively) |  | 12,827,850 |  |  | 9,130,897 |
Unvested restricted shares outstanding (3/31/2018 and 3/31/2017, respectively) |  | 15,945 |  |  | 16,395 |
Vesting schedule for restricted shares [Table Text Block] | The below table provides details on the Company's restricted shares granted pursuant to share award agreements which are unvested at March 31, 2018:
Grant Recipient |  | Number of Restricted Shares Granted |  | Grant Date |  | Vesting Date(1)
Independent trustees: |  |  |  |  |  |
|  | 9,976 |  |  | September 12, 2017 |  | September 11, 2018
Partially dedicated employees: |  |  |  |  |  |
|  | 2,630 |  |  | December 12, 2017 |  | December 12, 2018
|  | 1,783 |  |  | December 12, 2017 |  | December 12, 2019
|  | 1,556 |  |  | December 13, 2016 |  | December 13, 2018
(1) | Date at which such restricted shares will vest and become non-forfeitable.

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