Income Taxes - Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income (loss) from continuing operations before income taxes
United States	$ (10,151)	$ (3,723)
Other Countries	333	2,090
Loss from operations before income taxes	(9,818)	(1,633)
Net deferred tax asset (liability)		19
Reconciliation of the provision for income taxes computed at the statutory rate to the provision for income taxes
Tax expense (benefit) at US rate of 21%	(2,062)	(343)
Other adjustments:
Rate differential of other jurisdictions	(387)	505
Effects of foreign earnings	(1,631)	687
Change in valuation allowance	(3,619)	(6,948)
Provision to tax return true-ups	113	(99)
Exchange rate changes on deferred tax assets	3,234	3,893
Mexican special mining tax		212
Expired net operating losses	4,099	2,667
Other	341	(112)
Income tax provision	$ 88	$ 462
US rate (as a percent)	21.00%	21.00%