CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Revenue:
Sale of metals (Note 17)	$ 4,467		$ 4,938		$ 10,297		$ 11,321
Costs and expenses:
Costs applicable to sale of metals (exclusive of depreciation shown below) (Note 17)	(8,145)		(6,603)		(17,017)		(14,530)
Exploration expense	(1,240)		(1,816)		(2,764)		(4,212)
El Quevar project expense	(586)		(1,174)		(1,673)		(2,589)
Velardena project expense	(759)		(2,142)		(2,921)		(5,524)
Velardena shutdown costs	(2,329)				(2,329)
Administrative expense	(1,633)		(1,829)		(3,530)		(3,853)
Stock based compensation	(558)		(291)		(979)		(523)
Reclamation and accretion expense	(46)		22		(88)		(145)
Impairment of long lived assets	(238,020)				(238,020)
Impairment of goodwill	(11,180)				(11,180)
Other operating income & (expenses), net	630		(122)		3,828		215
Depreciation, depletion and amortization	(2,529)		(1,997)		(5,097)		(3,843)
Total costs and expenses	(266,395)		(15,952)		(281,770)		(35,004)
Loss from operations	(261,928)		(11,014)		(271,473)		(23,683)
Other income and expenses:
Interest and other income, net	251		1,986		323		2,161
Royalty income			219				357
Gain (loss) on foreign currency	(1,145)		(20)		(410)		434
Total other income and expenses	(894)		2,185		(87)		2,952
Loss from operations before income taxes	(262,822)		(8,829)		(271,560)		(20,731)
Income tax benefit	45,017		1,189		47,495		2,960
Net loss	(217,805)		(7,640)		(224,065)		(17,771)
Comprehensive loss:
Realized gain (loss) on securities			(26)		90		(59)
Comprehensive loss	$ (217,805)		$ (7,666)		$ (223,975)		$ (17,830)
Net loss per common share - basic and diluted
Loss (in dollars per share)	$ (5.09)		$ (0.22)		$ (5.23)		$ (0.50)
Weighted average common stock outstanding - basic and diluted (in shares)	42,821,914	[1]	35,487,868	[1]	42,812,918	[1]	35,480,946	[1]

[1] Potentially dilutive shares have not been included because to do so would be anti-dilutive.