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Stock Based Compensation - Restricted Shares (Details) - Restricted shares - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2017
Number of Restricted Stock Units
Units outstanding at the beginning of the period (in shares)
Vested (in shares)		9,486
Forfeited (in shares)		9,486
Units outstanding at the end of the period (in shares)		18,972
Weighted Average Grant Date Fair Value
Compensation expense	$ 143	$ (371)

X

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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