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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, 2022	Dec. 31, 2021
Income Taxes
Tax at statutory rates	$ 470	$ 3,705
Foreign rate differential	1,867	2,095
Change in valuation allowance	(5,115)	(975)
Tax losses subject to limitation	8,306
Mexico mining tax	2,168	1,590
Foreign exchange	311	535
Stock option expiration	519	2,471
Mexico Withholding Tax	1,328	679
Deduction for Inflation in Mexico	(1,083)	(981)
U.S. State income tax	(786)	514
Other	574	(18)
Total income tax provision	$ 8,559	$ 9,615

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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 deduction for inflation in Mexico.

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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 tax tax losses subject to limitation.

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Income Tax Reconciliation Impact Of Foreign Currency Loss Gain

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Mexico Mining Tax

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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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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 increase (decrease) in the valuation allowance for deferred tax assets.

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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 other adjustments.

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