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

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- Definition

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

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Stock-Based Compensation (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 76	$ 77
Unrecognized stock compensation expense	$ 522		$ 304
Minimum [Member] \| Restricted Stock and Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee benefit plan vesting period	3 years
Maximum [Member] \| Restricted Stock and Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee benefit plan vesting period	5 years