Stock-Based Compensation - Schedule of restricted stock awards activity (Details) - Restricted Stock Units (RSUs) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Number of Restricted Stock Awards
Outstanding at December 31, 2018 (shares)	0
Granted (shares)	186,922	0
Vested (shares)	0
Forfeited (shares)	(29,892)
Unvested at December 31, 2019 (shares)	157,030	0
Weighted Average Grant Date Fair Value
Unvested at December 31, 2018 (in usd per share)
Granted (in usd per share)	17.71
Forfeited (in usd per share)	17.24
Unvested at December 31, 2019 (in usd per share)	$ 17.80
Unvested at December 31, 2019, Weighted Average Term	1 year 7 months 6 days
Aggregate Intrinsic Value (Thousands)
Granted, Aggregate Intrinsic Value	$ 3,310
Unvested at December 31, 2019, Aggregate Intrinsic Value	$ 2,732

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
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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.

+ References

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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).

+ References

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The weighted average fair value at grant date for nonvested equity-based awards issued 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).

+ References

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-Publisher FASB
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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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-Publisher FASB
-Name Accounting Standards Codification
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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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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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-Publisher FASB
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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB
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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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-Publisher FASB
-Name Accounting Standards Codification
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Intrinsic value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Aggregate Intrinsic Value, Nonvested

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No definition available.

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