Retirement Plans (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Pension expense	$ 500	$ 800
Employer contributions in current fiscal year	800
Required contributions by employer	2,100
Anticipated contributions in next twelve months	4,500
Pension settlement loss		1,100
Estimated amortization of net actuarial loss amount	800
Estimated amortization of net prior service credit	0
Estimated amortization of net obligation at transition	$ 0
United States [Member]
Employer contributions in current fiscal year		400
Interest credit rate in current year	2.80%
Interest credit rate in next fiscal year	3.36%
Pension settlement loss		1,100
United States [Member] \| Equity Securities [Member]
Target plan asset allocations	65.00%
United States [Member] \| Fixed Income Securities [Member]
Target plan asset allocations	25.00%
United States [Member] \| Other Investments [Member]
Target plan asset allocations	10.00%
Foreign Plan [Member]
Pension expense	$ 100	200
Employer contributions in current fiscal year		$ 100
January 15, 2019 [Member]
Required contributions by employer	$ 400

Defined benefit plan, interest credit rate.

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- Definition

Defined benefit plan, interest credit rate for next fiscal year.

+ References

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- Definition

Defined benefit plan, plan assets, required contributions by employer.

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No definition available.

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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- Definition

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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Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) 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 transition asset (obligation) 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 of contributions received and expected to be received by defined benefit plan from employer in current fiscal year.

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Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.

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Amount of cost (reversal of cost) for pension benefits. Excludes other postretirement benefits.

+ References

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