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Stock-Based Compensation (Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Number ofStock Options
Outstanding, beginning of period (in shares)	208,334
Granted (in shares)	0
Expired (in shares)	40,000
Outstanding, end of period (in shares)	168,334	208,334
Exercisable (in shares)	168,334
Weighted AverageExercise Price
Outstanding, beginning of period (in USD per share)	$ 23.67
Granted (in USD per share)	0
Expired (in USD per share)	19.11
Outstanding, end of period (in USD per share)	24.75	$ 23.67
Exercisable (in USD per share)	$ 24.75
Weighted Average Remaining Contractual Life (years)
Outstanding	4 years 3 months 3 days	3 years 7 months 28 days
Exercisable	4 years 3 months 3 days
Aggregate Intrinsic Value (in thousands)
Outstanding, beginning of period	$ 0
Outstanding, end of period	0	$ 0
Exercisable	$ 0

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- Definition

Share-based Compensation Arrangements by Share-based Payment Award, Options, Intrinsic Value [Abstract]

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Share-based Compensation Arrangements by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract]

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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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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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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