Employee Benefit Plans (Schedule of Estimated Future Benefit Payments) (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Supplemental Executive Retirement Plan [Member]
Expected future benefit payments under the plans:
2017	$ 477
2018	486
2019	536
2020	566
2021	526
2022- 2026	2,149
Other Postretirement Benefits Plan [Member]
Expected future benefit payments under the plans:
2017	166
2018	175
2019	183
2020	191
2021	197
2022- 2026	$ 1,102

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- Definition

Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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- Definition

Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

+ References

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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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