Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Information

Schedule of financial information relating to segments

							Exploration, El
			Costs		Depreciation,		Quevar, Velardeña
Three Months Ended			Applicable		Depletion and		and Administrative		Pre-Tax (gain)				Capital
March 31, 2018	Revenue		to Sales		Amortization		Expense		loss		Total Assets		Expenditures
Velardeña Properties	$	1,637	$	503	$	203	$	588	$	(217)	$	6,661	$	28
Corporate, Exploration & Other		—		—		93		2,133		952		5,673		—
	$	1,637	$	503	$	296	$	2,721	$	735	$	12,334	$	28
Three Months Ended
March 31, 2017
Velardeña Properties	$	1,644	$	537	$	91	$	357	$	(774)	$	7,795	$	—
Corporate, Exploration & Other		—		—		97		1,701		1,847		5,459		—
	$	1,644	$	537	$	188	$	2,058	$	1,073	$	13,254	$	—