Segment Information (Tables)

3 Months Ended

Mar. 31, 2017

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, 2017	Revenue		to Sales		Amortization		Expense		loss		Total Assets		Expenditures
Velardeña Properties	$	1,644	$	537	$	91	$	357	$	(774)	$	7,795	$	—
Corporate, Exploration & Other		—		—		97		1,701		1,909		5,459		—
	$	1,644	$	537	$	188	$	2,058	$	1,135	$	13,254	$	—
Three Months Ended
March 31, 2016
Velardeña Properties	$	1,463	$	474	$	420	$	810	$	211	$	7,429	$	—
Corporate, Exploration & Other		—		—		130		1,934		6,076		6,602		—
	$	1,463	$	474	$	550	$	2,744	$	6,287	$	14,031	$	—