Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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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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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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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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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Stock Based Compensation - Restricted Stock Units (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019
Restricted stock units
Weighted Average Grant Date Fair Value
Period over which compensation expense expected to recognize			11 months 5 days
Omnibus Plan
Weighted Average Grant Date Fair Value
Compensation expense	$ 9	$ (42)	$ 317	$ 741
Omnibus Plan \| Restricted stock units
Number of Restricted Stock Units
Units outstanding at the beginning of the period (in shares)			68,649
Granted (in shares)			0
Vested (in shares)			(57,563)
Forfeited (in shares)			(1,830)
Units outstanding at the end of the period (in shares)	9,256		9,256
Weighted Average Grant Date Fair Value
Units outstanding at the beginning of the period (in dollars per shares)			$ 6.25
Vested (in dollars per share)			3.15
Forfeited (in dollars per share)			21.75
Units outstanding at the end of the period (in dollars per shares)	$ 22.44		$ 22.44
Unrecognized compensation expense					$ 217
Period over which compensation expense expected to recognize			7 months 6 days
Unvested restricted stock (in units)	9,256		68,649		9,256
Omnibus Plan \| Restricted stock units \| 2020
Number of Restricted Stock Units
Units outstanding at the end of the period (in shares)	9,013		9,013
Weighted Average Grant Date Fair Value
Unvested restricted stock (in units)	9,013		9,013		9,013
Omnibus Plan \| Restricted stock units \| 2021
Number of Restricted Stock Units
Units outstanding at the end of the period (in shares)	243		243
Weighted Average Grant Date Fair Value
Unvested restricted stock (in units)	243		243		243