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Employee Benefit Plans - Schedule of Net Periodic Benefit Cost Not Yet Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Retirement Benefits, Description [Abstract]
Unamortized net actuarial gain (loss)	$ 47	$ (186)
Deferred tax (expense) benefit at 21% in 2018 and 35% in 2017	(10)	65
Reclassification adjustment for effect of enacted tax law changes	0	(26)
Net unrecognized post-retirement benefits included in accumulated other comprehensive income (loss)	37	$ (147)
Portion to Be Recognized in Income in 2019
Unamortized net actuarial gain (loss)	(160)
Deferred tax (expense) benefit at 21% in 2018 and 35% in 2017	34
Reclassification adjustment for effect of enacted tax law changes	0
Net unrecognized post-retirement benefits included in accumulated other comprehensive income (loss)	$ (126)

X

- Definition

Tax effects of the increase (decrease) to accumulated comprehensive income during the period related to benefit plans.

+ References

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- Definition

Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580

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Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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-Section 50
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Amount of cost (credit) included in accumulated other comprehensive (income) loss expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

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Amount included in accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan expected to be recognized in net periodic benefit (cost) credit for fiscal year following most recent annual statement of financial position.

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