Stock-Based Compensation (Narrative) (Details) - USD ($)	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Restricted Stock Units (RSUs) [Member]
Stock-based compensation
Restricted Stock Units outstanding	3,938
2018 Equity Incentive Plan (the "2018 Plan") [Member]
Stock-based compensation
Number of authorized shares	75,000
Number of additional shares authorized	35,494
Number of shares reserved for issuance	6,822
2018 Equity Incentive Plan (the "2018 Plan") [Member] \| Minimum [Member]
Stock-based compensation
Stock awards vesting period	1 year
2018 Equity Incentive Plan (the "2018 Plan") [Member] \| Maximum [Member]
Stock-based compensation
Stock awards vesting period	4 years
2018 Equity Incentive Plan (the "2018 Plan") [Member] \| Stock Options [Member]
Stock-based compensation
Life of stock option awards granted	10 years
Options granted (in shares)	0	70,951
Stock option exercised (in shares)	0	0
2018 Equity Incentive Plan (the "2018 Plan") [Member] \| Stock Options [Member] \| Minimum [Member]
Stock-based compensation
Options granted, grant date fair value		$ 11.40
Stock awards vesting period	1 year
2018 Equity Incentive Plan (the "2018 Plan") [Member] \| Stock Options [Member] \| Maximum [Member]
Stock-based compensation
Options granted, grant date fair value		$ 12.20
Stock awards vesting period	4 years

Represents the grant date fair value of options granted during the reporting period.

No definition available.

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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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- Definition

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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- Definition

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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- Definition

Number of additional shares authorized for issuance under share-based payment arrangement.

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Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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- Definition

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

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No definition available.

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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