Segment Information (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) segment customer item	Dec. 31, 2014 USD ($) customer
Segment Information
Number of reportable segments | item		2
Revenue		$ 8,071	$ 235
Costs Applicable to Sales		10,065	1,655
Depreciation, Depletion and Amortization		4,480	3,128
Exploration, El Quevar, Velardena and Administrative Expense		10,265	17,350
Pre-Tax loss		25,383	18,823
Total Assets		17,001	41,258
Capital Expenditures		44	500
Impairment of long lived assets and goodwill		$ 27	$ 138
Number of customers to whom marketable products were sold | customer		3	3
Velardena properties
Segment Information
Number of reportable segments | segment		1
Revenue		$ 8,071	$ 235
Costs Applicable to Sales		10,065	1,655
Depreciation, Depletion and Amortization		3,826	2,353
Exploration, El Quevar, Velardena and Administrative Expense		1,347	6,607
Pre-Tax loss		17,346	8,144
Total Assets		8,988	27,188
Capital Expenditures		$ 28	491
Impairment of long lived assets and goodwill	$ 13,200
Number of customers to whom marketable products were sold | item		3
Corporate, Exploration & Other
Segment Information
Depreciation, Depletion and Amortization		$ 654	775
Exploration, El Quevar, Velardena and Administrative Expense		8,918	10,743
Pre-Tax loss		8,037	10,679
Total Assets		8,013	14,070
Capital Expenditures		$ 16	$ 9