Segment Information (Tables)

6 Months Ended

Jun. 30, 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
June 30, 2021	Revenue		to Sales		Amortization		Expense		loss		Total Assets		Expenditures
Mexico Operations	$	5,861	$	3,328	$	109	$	690	$	(1,644)			$	770
Corporate, Exploration and Other		—		—		59		1,591		2,387				55
	$	5,861	$	3,328	$	168	$	2,281	$	743			$	825
Six Months Ended
June 30, 2021
Mexico Operations	$	7,639	$	4,864	$	218	$	1,349	$	(1,192)	$	9,613	$	1,311
Corporate, Exploration and Other		—		—		105		3,566		5,165		9,492		60
	$	7,639	$	4,864	$	323	$	4,915	$	3,973	$	19,105	$	1,371
Three Months Ended
June 30, 2020
Mexico Operations	$	1,224	$	420	$	196	$	324	$	(232)			$	—
Corporate, Exploration and Other		—		—		69		1,704		2,555				1
	$	1,224	$	420	$	265	$	2,028	$	2,323			$	1
Six Months Ended
June 30, 2020
Mexico Operations	$	2,420	$	984	$	400	$	981	$	139	$	4,267	$	1
Corporate, Exploration and Other		—		—		144		4,552		5,520		7,146		1
	$	2,420	$	984	$	544	$	5,533	$	5,659	$	11,413	$	2