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Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Contribution Plan [Abstract]
Defined contribution plan, eligibiilty, minimum employee age	21 years
Defined contribution plan, eligibility, minimum employee service time for participation eligibility	six months
Defined contribution plan, employer discretionary contribution amount	$ 50	$ 50	$ 50
Deferred Compensation Arrangements [Abstract]
Deferred compensation liability	1,600
Deferred compensation assets	$ 2,300

X

- Definition

Defined Contribution Plan, Eligibility, Minimum Employee Age

+ References

No definition available.

+ Details

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- Definition

Defined Contribution Plan, Eligibility, Minimum Employee Service Time for Participation Eligibility

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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X

- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date.

+ References

No definition available.

+ Details

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X

- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- References

No definition available.

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- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

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