Segment Information (Tables)

3 Months Ended

Mar. 31, 2021

Segment Information

Schedule of financial information relating to discontinued operations and continuing operations

							Exploration, El
			Costs		Depreciation,		Quevar, Velardeña
Three Months Ended			Applicable		Depletion and		and Administrative		Pre-Tax (gain)				Capital
March 31, 2021	Revenue		to Sales		Amortization		Expense		loss		Total Assets		Expenditures
Mexico Operations	$	1,778	$	1,536	$	109	$	659	$	452	$	7,917	$	541
Corporate, Exploration and Other		—		—		46		1,975		2,778		10,908		5
	$	1,778	$	1,536	$	155	$	2,634	$	3,230	$	18,825	$	546
Three Months Ended
March 31, 2020
Velardeña Properties	$	1,196	$	564	$	204	$	657	$	371	$	4,663	$	1
Corporate, Exploration and Other		—		—		75		2,848		2,965		5,572		—
	$	1,196	$	564	$	279	$	3,505	$	3,336	$	10,235	$	1