Stock-Based Compensation (Schedule of Stock-Based Compensation, RS and RSU Award Activity) (Details) - $ / shares	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
2016 and 2006 Plan [Member] \| Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Nonvested at beginning of period (in shares)	6,451	38,562
Number of Shares, Vested (in shares)	(6,451)	(15,577)
Number of Shares, Forfeited (in shares)		(16,534)
Number of Shares, Nonvested at end of period (in shares)		6,451
Weighted Average Grant Date Fair Value, Nonvested at beginning of period (in dollars per share)	$ 16.57	$ 14.69
Weighted Average Grant Date Fair Value, Vested (in dollars per share)	$ 16.57	11.68
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)		16.78
Weighted Average Grant Date Fair Value, Nonvested at end of period (in dollars per share)		$ 16.57
Equity Plan 2016 [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Nonvested at beginning of period (in shares)	15,702
Number of Shares, Granted (in shares)	25,507	15,702
Number of Shares, Vested (in shares)	(15,065)
Number of Shares, Forfeited (in shares)	(1,639)
Number of Shares, Nonvested at end of period (in shares)	24,505	15,702
Weighted Average Grant Date Fair Value, Nonvested at beginning of period (in dollars per share)	$ 15.36
Weighted Average Grant Date Fair Value, Granted (in dollars per share)	13.78	$ 15.36
Weighted Average Grant Date Fair Value, Vested (in dollars per share)	15.35
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share)	15.85
Weighted Average Grant Date Fair Value, Nonvested at end of period (in dollars per share)	$ 13.78	$ 15.36

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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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-Publisher FASB
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-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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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).

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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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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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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- Definition

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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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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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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No definition available.

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