Income Taxes (Reconciliation Of Taxes Reported At Company's Tax Rate And U.S. Federal Statutory Tax Rate) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes
Tax at statutory rates	$ 3,125	$ 3,476	$ 9,967
Foreign rate differential	1,969	2,161	(1,780)
GILTI Inclusion	2,173
One-time tax on foreign unremitted earnings (Tax Act)			4,627
Changes in deferred tax assets	(336)	(189)	6,239
Mexico mining tax	1,608	1,777	2,816
U.S. Tax rate reduction from 35% to 21% (Tax Act)			2,671
Other	511	38	(212)
Total income tax provision	$ 9,050	$ 7,263	$ 24,328

Change In Deferred Tax Assets

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Income Tax Reconciliation Dividends Net Of Foreign Tax Credits

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Mexico Mining Tax

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of reasonable estimate for income tax expense for which accounting for tax effect for remeasurement of deferred tax asset from change in tax rate is incomplete pursuant to Tax Cuts and Jobs Act.

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