10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(MARK ONE)

[X] QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2016.

OR

[  ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROM                 TO                 

COMMISSION FILE NUMBER 1-13627

GOLDEN MINERALS COMPANY

(EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

DELAWARE	26-4413382
(STATE OR OTHER JURISDICTION OF	(I.R.S. EMPLOYER
INCORPORATION OR ORGANIZATION)	IDENTIFICATION NO.)

350 INDIANA STREET, SUITE 800
GOLDEN, COLORADO	80401
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)	(ZIP CODE)

(303) 839-5060

(REGISTRANT’S TELEPHONE NUMBER, INCLUDING AREA CODE)

INDICATE BY CHECK MARK WHETHER THE REGISTRANT (1) HAS FILED ALL REPORTS REQUIRED TO BE FILED BY SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DURING THE PRECEDING 12 MONTHS (OR FOR SUCH SHORTER PERIOD THAT THE REGISTRANT WAS REQUIRED TO FILE SUCH REPORTS), AND (2) HAS BEEN SUBJECT TO SUCH FILING REQUIREMENTS FOR THE PAST 90 DAYS:    YES ☒    NO ☐

INDICATE BY CHECK MARK WHETHER THE REGISTRANT HAS SUBMITTED ELECTRONICALLY AND POSTED ON ITS CORPORATE WEB SITE, IF ANY, EVERY INTERACTIVE DATA FILE REQUIRED TO BE SUBMITTED AND POSTED PURSUANT TO RULE 405 OF REGULATION S-T (§232.405 OF THIS CHAPTER) DURING THE PRECEDING 12 MONTHS (OR FOR SUCH SHORTER PERIOD THAT THE REGISTRANT WAS REQUIRED TO SUBMIT AND POST SUCH FILES):   YES ☒   NO ☐

INDICATE BY CHECK MARK WHETHER THE REGISTRANT IS A LARGE ACCELERATED FILER, AN ACCELERATED FILER, A NON-ACCELERATED FILER, OR A SMALLER REPORTING COMPANY:

LARGE ACCELERATED FILER ☐	ACCELERATED FILER ☐
NON-ACCELERATED FILER ☐	SMALLER REPORTING COMPANY ☒

INDICATE BY CHECK MARK WHETHER THE REGISTRANT IS A SHELL COMPANY (AS DEFINED IN RULE 12B-2 OF THE EXCHANGE ACT):  YES ☐       NO ☒

INDICATE BY CHECK MARK WHETHER THE REGISTRANT HAS FILED ALL DOCUMENTS AND REPORTS REQUIRED TO BE FILED BY SECTIONS 12, 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 SUBSEQUENT TO THE DISTRIBUTION OF SECURITIES UNDER A PLAN CONFIRMED BY A COURT:  YES ☒  NO ☐

AT AUGUST 10, 2016, 88,920,041 SHARES OF COMMON STOCK, $0.01 PAR VALUE PER SHARE, WERE ISSUED AND OUTSTANDING.

GOLDEN MINERALS COMPANY

FORM 10-Q

QUARTER ENDED JUNE 30, 2016

INDEX

		PAGE
PART I – FINANCIAL INFORMATION
		3
ITEM 1.	FINANCIAL STATEMENTS (Unaudited)
ITEM 2.	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	23
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	31
ITEM 4.	CONTROLS AND PROCEDURES	31
PART II – OTHER INFORMATION
ITEM 1.	LEGAL PROCEEDINGS	32
ITEM 1A.	RISK FACTORS	32
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	32
ITEM 3.	DEFAULTS UPON SENIOR SECURITIES	32
ITEM 4.	MINE SAFETY DISCLOSURES	32
ITEM 5.	OTHER INFORMATION.	32
ITEM 6.	EXHIBITS	33
SIGNATURES		34

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PART I. FINANCIAL INFORMATION

Item 1.Financial Statements

GOLDEN MINERALS COMPANY

CONDENSED CONSOLIDATED BALANCE SHEETS

(Expressed in United States dollars)

	Unaudited
	June 30,		December 31,
	2016		2015
	(in thousands, except share data)
Assets
Current assets
Cash and cash equivalents (Note 4)	$	3,932	$	4,077
Short-term investments (Note 4)		269		72
Trade receivables		658		546
Inventories (Note 6)		290		330
Value added tax receivable, net (Note 7)		4		400
Prepaid expenses and other assets (Note 5)		448		451
Total current assets		5,601		5,876
Property, plant and equipment, net (Note 8)		9,842		11,125
Total assets	$	15,443	$	17,001
Liabilities and Equity
Current liabilities
Accounts payable and other accrued liabilities (Note 9)	$	1,538	$	1,144
Convertible note payable - related party, net (Note 11)		—		3,702
Derivative liability - related party (Note 11)		—		488
Deferred revenue (Note 16)		—		500
Other current liabilities (Note 12)		229		556
Total current liabilities		1,767		6,390
Asset retirement and reclamation liabilities (Note 10)		2,342		2,546
Warrant liability (Note 13)		2,486		210
Other long term liabilities (Note 12)		76		84
Total liabilities		6,671		9,230
Commitments and contingencies (Note 20)
Equity (Note 15)
Common stock, $.01 par value, 200,000,000 and 100,000,000 shares authorized; 88,920,041 and  53,335,333 shares issued and outstanding, respectively		889		534
Additional paid in capital		495,393		484,742
Accumulated deficit		(487,554)		(477,378)
Accumulated other comprehensive income (loss)		44		(127)
Shareholders' equity		8,772		7,771
Total liabilities and equity	$	15,443	$	17,001

The accompanying notes form an integral part of these condensed consolidated financial statements.

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GOLDEN MINERALS COMPANY

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(Expressed in United States dollars)

(Unaudited)

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2016		2015		2016		2015
	(in thousands except per share data)				(in thousands, except per share data)
Revenue:
Oxide plant lease (Note 16)	$	1,576	$	—	$	3,039	$	—
Sale of metals (Note 16)		—		1,961		—		4,298
Total revenue		1,576		1,961		3,039		4,298
Costs and expenses:
Oxide plant lease costs (Note 16)		(455)		—		(929)		—
Cost of metals sold (exclusive of depreciation shown below) (Note 16)		—		(2,775)		—		(5,787)
Exploration expense		(1,162)		(1,267)		(1,938)		(2,236)
El Quevar project expense		(210)		(405)		(373)		(811)
Velardeña project expense		—		—		—		(119)
Velardeña shutdown and care and maintenance costs		(546)		—		(1,133)		—
Administrative expense		(1,026)		(1,000)		(2,244)		(2,328)
Stock based compensation		(539)		(94)		(571)		(273)
Reclamation expense		(46)		(48)		(97)		(158)
Other operating income, net		205		294		244		470
Depreciation, depletion and amortization		(421)		(1,175)		(971)		(2,534)
Total costs and expenses		(4,200)		(6,470)		(8,012)		(13,776)
Loss from operations		(2,624)		(4,509)		(4,973)		(9,478)
Other income and (expense):
Interest expense (Note 11)		(72)		—		(515)		—
Interest and other income (Note 17)		32		467		35		1,383
Warrant derivative (loss) gain (Note 18)		(1,096)		218		(2,276)		868
Derivative loss (Note 18)		(130)		—		(778)		—
Gain (loss) on debt extinguishment (Note 11)		13				(1,653)		—
Loss on foreign currency		(38)		(26)		(42)		(54)
Total other (expense) income		(1,291)		659		(5,229)		2,197
Loss from operations before income taxes		(3,915)		(3,850)		(10,202)		(7,281)
Income tax benefit		26		—		26		—
Net loss	$	(3,889)	$	(3,850)	$	(10,176)	$	(7,281)
Comprehensive loss, net of tax:
Unrealized gain (loss) on securities		89		43		171		(37)
Comprehensive loss	$	(3,800)	$	(3,807)	$	(10,005)	$	(7,318)
Net loss per common share — basic
Loss	$	(0.05)	$	(0.07)	$	(0.14)	$	(0.14)
Weighted average Common Stock outstanding - basic (1)		82,817,778		52,688,552		74,343,257		52,688,552

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

The accompanying notes form an integral part of these condensed consolidated financial statements.

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GOLDEN MINERALS COMPANY

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Expressed in United States dollars)

(Unaudited)

	Six Months Ended
	June 30,
	2016		2015
	(in thousands)
Cash flows from operating activities:
Net cash used in operating activities	$	(3,774)	$	(5,545)
Cash flows from investing activities:
Proceeds from sale of assets		50		301
Capitalized costs and acquisitions of property, plant and equipment		(20)		(44)
Net cash from investing activities	$	30	$	257
Cash flows from financing activities:
Proceeds from issuance of common stock, net of issue costs		3,599		—
Net cash from financing activities	$	3,599	$	—
Net decrease in cash and cash equivalents		(145)		(5,288)
Cash and cash equivalents, beginning of period		4,077		8,579
Cash and cash equivalents, end of period	$	3,932	$	3,291

See Note 19 for supplemental cash flow information.

The accompanying notes form an integral part of these condensed consolidated financial statements.

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GOLDEN MINERALS COMPANY

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

(Expressed in United States dollars)

(Unaudited)

								Accumulated
				Additional				Other
	Common Stock			Paid-in		Accumulated		Comprehensive		Total
	Shares	Amount		Capital		Deficit		loss		Equity
	(in thousands except share data)
Balance, December 31, 2014	53,162,833	$	532	$	484,197	$	(451,995)	$	—	$	32,734
Stock compensation accrued	—		—		453		—		—		453
KELTIP mark-to-market	—		—		40		—		—		40
KELTIP shares issued	172,500		2		52		—		—		54
Unrealized loss on marketable equity securities, net of tax	—		—		—		—		(127)		(127)
Net loss	—		—		—		(25,383)		—		(25,383)
Balance, December 31, 2015	53,335,333	$	534	$	484,742	$	(477,378)	$	(127)	$	7,771
Stock compensation accrued	217,968		1		189		—		—		190
Shares issued on conversion of Sentient Note	27,366,740		274		6,943		—		—		7,217
Registered offering common stock, net and warrants (Note 15)	8,000,000		80		3,519		—		—		3,599
Unrealized loss on marketable equity securities, net of tax	—		—		—		—		171		171
Net loss	—		—		—		(10,176)		—		(10,176)
Balance, June 30, 2016	88,920,041	$	889	$	495,393	$	(487,554)	$	44	$	8,772

The accompanying notes form an integral part of these condensed consolidated financial statements.

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GOLDEN MINERALS COMPANY

NOTES TO THE CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Expressed in United States dollars)

(Unaudited)

1.     Basis of Preparation of Financial Statements and Nature of Operations

Golden Minerals Company (the “Company”), a Delaware corporation, has prepared these unaudited interim condensed consolidated financial statements in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). Such rules and regulations allow the omission of certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“GAAP”), so long as such omissions do not render the financial statements misleading.  The year-end balance sheet data was derived from audited financial statements, but does not include all disclosures normally required by GAAP.

In the opinion of management, these financial statements reflect all adjustments that are necessary for a fair presentation of the financial results for the periods presented. These interim financial statements should be read in conjunction with the annual financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2015, and filed with the SEC on February 25, 2016.

The Company is a mining company, holding a 100% interest in the Velardeña and Chicago precious metals mining properties and associated oxide and sulfide processing plants in Mexico (the “Velardeña Properties”).  During November 2015 the Company suspended mining and sulfide processing activities at its Velardeña Properties in order to conserve the asset until the Company is able to develop mining and processing plans that at then current prices for silver and gold indicate a sustainable positive operating margin (defined as revenues less costs of sales) or the Company is able to locate, acquire and develop alternative mineral sources that could be economically mined and transported to the Velardeña Properties for processing.  The Company has placed the mine and sulfide processing plant on care and maintenance to enable a re-start of either the mine or mill when mining and processing plans and metals prices support a cash positive outlook.  The Company incurred approximately $1.2 million in related costs for employee severance, net working capital obligations, and other shutdown expenditures to place the property on care and maintenance in the fourth quarter 2015 and $1.1 million in shutdown and care and maintenance costs for the six months ended June 30, 2016 and expects to incur approximately $0.3 million in quarterly holding costs while mining and processing remain suspended.  The Company has retained a core group of employees, most of whom have been assigned to operate the oxide plant, which is leased to a third party and not affected by the shutdown.  The oxide plant began processing material for the third party in mid-December 2015, and the Company expects to receive net cash flow under the lease of approximately $4.5 million in 2016.  The retained employees also include an exploration group and an operations and administrative group to continue to advance the Company’s plans in Mexico, oversee corporate compliance activities, and to maintain and safeguard the longer term value of the Velardeña assets.

The Company remains focused on evaluating and searching for mining opportunities in North America (including Mexico) with near term prospects of mining, and particularly for properties within reasonable haulage distances of our Velardeña Properties. The Company is also reviewing strategic opportunities, focusing primarily on development or operating properties in North America, including Mexico. The Company is continuing its exploration efforts on selected properties in its portfolio of approximately 10 exploration properties located primarily in Mexico. It continues to hold its El Quevar advanced exploration property in Argentina on care and maintenance until it can find a partner to further advance the project.

The Company is considered an exploration stage company under the criteria set forth by the SEC as the Company has not yet demonstrated the existence of proven or probable mineral reserves, as defined by SEC Industry Guide 7, at the Velardeña Properties, or any of the Company’s other properties.  As a result, and in accordance with GAAP for exploration stage companies, all expenditures for exploration and evaluation of the Company’s properties are expensed as incurred. As such the Company’s financial statements may not be comparable to the financial statements of mining companies that do have proven and probable mineral reserves.  Such companies would typically capitalize certain development costs including infrastructure development and mining activities to access the ore. The capitalized costs would be amortized on a units-of-production basis as reserves are mined.  The amortized costs are typically allocated to inventory and eventually to cost of sales as the inventories are sold.  As the Company does not have proven and probable reserves, substantially all expenditures at the Company’s Velardeña Properties for mine construction activity, as well as costs associated with the

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mill facilities, and for items that do not have a readily identifiable market value apart from the mineralized material, have been expensed as incurred. Such costs are charged to cost of metals sold or project expense during the period depending on the nature of the costs. Certain of the costs may be reflected in inventories prior to the sale of the product. The term “mineralized material” as used herein, although permissible under SEC Industry Guide 7, does not indicate “reserves” by SEC standards. The Company cannot be certain that any deposits at the Velardeña Properties or any other exploration property will ever be confirmed or converted into SEC Industry Guide 7 compliant “reserves”.

2.     Liquidity, Capital Resources and Going Concern

At June 30, 2016 the Company’s aggregate cash and cash equivalents totaled $3.9 million, $0.2 million lower than the $4.1 million in similar assets held at December 31, 2015. The reduction is due primarily to $1.1  million in shutdown and care and maintenance costs at the Velardeña Properties, $1.9 million in exploration expenditures, including costs related to drilling at the San Luis del Cordero, Santa Maria, and Rodeo properties, $0.4 million in care and maintenance and property holding costs at the El Quevar project, $2.2 million in general and administrative expenses, $0.5 million from an increase in working capital primarily related to a decrease in deferred revenue from the lease of the oxide plant, offset in part by $0.2 million of net proceeds from the sale of nonstrategic exploration properties, $2.1 million of net operating margin received pursuant to the lease (defined as oxide plant lease revenue less oxide plant lease costs) and $3.6 million of net proceeds received in a registered direct offering of the Company’s common stock as discussed below.

On February 11, 2016, The Sentient Group (“Sentient”) converted approximately $3.9 million of principal and $0.1 million of accrued interest (representing the total amount of accrued interest at the conversion date) pursuant to the Sentient Note (defined below) into 23,355,000 shares of the Company’s common stock. See Note 11 for a full discussion of the Sentient Note. On June 10, 2016 Sentient converted the remaining approximately $1.1 million and approximately $34,000 of accrued interest under the Sentient Note into 4,011,740 shares of the Company’s common stock.  At June 30, 2016 the Company had no outstanding debt.

On May 6, 2016, the Company issued 8.0 million registered shares of common stock at a purchase price of $0.50 per share in a registered direct offering (the “Offering”) resulting in gross proceeds of $4.0 million. The Company incurred costs and fees of approximately $0.4 million related to the Offering resulting in net proceeds of approximately $3.6 million.  In connection with the Offering, for each share of common stock purchased by an investor, such investor received an unregistered warrant to purchase three‐quarters of a share of common stock. The warrants have an exercise price of $0.75 per share and are exercisable six months after the date of issuance and will expire five years from the initial exercise date (see Note 15).

The Company currently expects that it will have sufficient cash to continue its business plan into 2017 without external funding.  In addition to its $3.9 million cash balance at June 30, 2016, the Company expects to receive approximately $2.4 million in net operating margin from the lease of the oxide plant in the remaining two quarters of 2016 and has received $0.6 million from the sale of non-strategic exploration properties in the third quarter. The Company currently plans to spend approximately $3.9 million in the remaining two quarters of 2016, as detailed below, resulting in a projected cash balance at the end of 2016 of approximately $3.0 million.

· Approximately $0.7 million at the Velardeña Properties for care and maintenance;

· Approximately $1.1 million on exploration activities and property holding costs related to the Company’s portfolio of exploration properties located primarily in Mexico, including project assessment and development costs relating to Santa Maria, Rodeo, and other properties;

· Approximately $0.3 million at the El Quevar project to fund ongoing maintenance activities, property holding costs, and continuing  project evaluation costs;

· Approximately $1.4 million on general and administrative costs; and

· Approximately $0.4 million on an increase in working capital primarily related to a reduction in current liabilities involving the payment of equity taxes in a foreign jurisdiction.

8

The actual amount that the Company spends during the remainder of 2016 and the projected yearend cash balance may vary significantly from the amounts specified above and will depend on a number of factors, including variations from anticipated care and maintenance costs at the Velardeña Properties and costs for continued exploration, project assessment, and development at the Company’s other exploration properties, including Santa Maria and Rodeo.

The consolidated financial statements have been prepared on a going concern basis under which an entity is considered to be able to realize its assets and satisfy its liabilities in the normal course of business.  However, the continuing operations of the Company are dependent upon its ability to secure sufficient funding and to generate future profitable operations.  The underlying value and recoverability of the amounts shown as property, plant and equipment in Note 8 are dependent on the ability of the Company to generate positive cash flows from operations and to continue to fund exploration and development activities that would lead to profitable mining activities or to generate proceeds from the disposition of property, plant and equipment.  There can be no assurance that the Company will be successful in generating future profitable operations or securing additional funding in the future on terms acceptable to the Company or at all.

3.     New Accounting Pronouncements

In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09, “Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting” (“ASU 2016-09”), which simplifies several aspects of the accounting for share-based payment award transactions including accounting for income taxes and classification of excess tax benefits on the statement of cash flows, forfeitures and minimum statutory tax withholding requirements.  For the Company, ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any interim or annual period. The adoption of this update is not expected to have a material impact on the Company’s consolidated financial position or results of operations.

In March 2016, the FASB issued ASU 2016-08,  “Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)” (“ASU 2016-08”), which clarifies principal versus agent when another party, along with the entity, is involved in providing a good or service to a customer. Topic 606, Revenue from Contracts with Customers, requires an entity to determine whether the nature of its promise is to provide that good or service to the customer (i.e., the entity is a principal) or to arrange for the good or service to be provided to the customer by the other party (i.e., the entity is an agent). For the Company, ASU 2016-08 is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The adoption of this update is not expected to have a material impact on the Company’s consolidated financial position or results of operations.

In January 2016, the FASB issued ASU No. 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities” (“ASU 2016-01”), which amended its standards related to the accounting of certain financial instruments. This amendment addresses certain aspects of recognition, measurement, presentation and disclosure. The new rules will become effective for annual and interim periods beginning after December 15, 2017. Early adoption is not permitted. We are in the process of evaluating the impact the amendment will have on our consolidated financial position or results of operations.

On August 27, 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements - Going Concern (Subtopic 205-40), Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern” (“ASU 2014-15”).  ASU 2014-15 will require management to evaluate whether there are conditions and events that raise substantial doubt about the Company’s ability to continue as a going concern within one year after the financial statements are issued on both an interim and annual basis. Management will be required to provide certain footnote disclosures if it concludes that substantial doubt exists or when its plans alleviate substantial doubt about the Company’s ability to continue as a going concern. ASU 2014-15 becomes effective for annual periods beginning in 2016 and for interim reporting periods starting in the first quarter of 2017. The Company does not expect the adoption of this update to have a material impact on its consolidated financial position or results of operations.

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4.     Cash and Cash Equivalents and Short-term Investments

The Company considers all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents. Short-term investments include investments with maturities greater than three months, but not exceeding 12 months, or highly liquid investments with maturities greater than 12 months that the Company intends to liquidate during the next 12 months for working capital needs.

The Company determines the appropriate classification of its investments in equity securities at the time of acquisition and re-evaluates those classifications at each balance sheet date.  Available for sale investments are marked to market at each reporting period with changes in fair value recorded as a component of other comprehensive income (loss). If declines in fair value are deemed other than temporary, a charge is made to net income (loss) for the period.

The following tables summarize the Company’s short-term investments at June 30, 2016 and December 31, 2015:

			Estimated		Carrying
June 30, 2016	Cost		Fair Value		Value
		(inthousands)
Investments:
Short-term:
Available for sale common stock	$	199	$	269	$	269
Total available for sale		199		269		269
Total short term	$	199	$	269	$	269
December 31, 2015
Investments:
Short-term:
Available for sale common stock	$	199	$	72	$	72
Total available for sale		199		72		72
Total short term	$	199	$	72	$	72

The available for sale common stock consists of 5,000,000 shares of a junior mining company received during the first quarter 2015 in a transaction involving the Company’s 50% interest in the San Diego exploration property in Mexico.  The Company received shares in the junior mining company that holds the other 50% interest in the property in exchange for extending by two years from March 24, 2015 the period of time in which the junior mining company can earn an additional 10% interest in the property by completing an additional $0.8 million of exploration work.  Following the receipt of the shares the Company owns approximately 9% of the outstanding shares of the junior mining company.  The extension agreement was executed on March 23, 2015 and the value of shares on that date was recorded by the Company as a short-term investment using quoted market prices.  See Note 13 for further discussion on the fair value measurement techniques used by the Company to value the above investments.

5.     Prepaid Expenses and Other Assets

Prepaid expenses and other current assets consist of the following:

	June 30,			December 31,
	2016			2015
	(in thousands)
Prepaid insurance	$	294	$	302
Prepaid contractor fees and vendor advances		24		12
Recoupable deposits and other		130		137
	$	448	$	451

The prepaid contractor fees and vendor advances consist of advance payments made to contractors and suppliers primarily at the Company’s Velardeña Properties in Mexico.

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6.     Inventories

Inventories at the Velardeña Properties at June 30, 2016 and December 31, 2015 consist of the following:

	June 30,		December 31,
	2016		2015
	(in thousands)
Material and supplies	$	290	$	330
	$	290	$	330

The Company had no metals or in process inventories at June 30, 2016 or December 31, 2015 as the result of the suspension of mining and processing at the Velardeña Properties (see Note 1). The material and supplies inventory at June 30, 2016 and December 31, 2015 is reduced by a $0.2 million and $0.3 million obsolescence charge respectively.

7.Value Added Tax Receivable, Net

Mexico law allows for certain VAT payments to be recovered through ongoing applications for refunds. The Company expects that the current amounts will be recovered within a one year period.  At June 30, 2016 the Company has also recorded approximately $49,000 of VAT receivable as a reduction to VAT taxes payable in Mexico, which appears in Accounts payable and other accrued liabilities on the Condensed Consolidated Balance Sheets.

The Company has also paid VAT in Mexico as well as other countries, primarily related to exploration projects, which has been charged to expense as incurred because of the uncertainty of recoverability.

8.Property, Plant and Equipment, Net

The components of property, plant and equipment are as follows:

	June 30,		December 31,
	2016		2015
	(in thousands)
Mineral properties	$	9,614	$	9,630
Exploration properties		2,518		2,518
Royalty properties		200		200
Buildings		4,381		4,377
Mining equipment and machinery		16,868		16,998
Other furniture and equipment		842		841
Asset retirement cost		992		1,285
		35,415		35,849
Less: Accumulated depreciation and amortization		(25,573)		(24,724)
	$	9,842	$	11,125

The asset retirement cost (“ARC”) is all related to the Company’s Velardeña Properties. The decrease in the ARC during the period is related to an adjustment to the asset retirement obligation (“ARO”), as discussed below in Note 10.

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9.     Accounts Payable and Other Accrued Liabilities

The Company’s accounts payable and other accrued liabilities consist of the following:

	June 30,		December 31,
	2016		2015
	(in thousands)
Accounts payable and accruals	$	668	$	599
Accrued employee compensation and benefits		870		545
	$	1,538	$	1,144

June 30, 2016

Accounts payable and accruals at June 30, 2016 are primarily related to amounts due to contractors and suppliers in the amounts of $0.4 million and $0.3 million related to the Company’s Velardeña Properties and corporate administrative activities, respectively.  In the case of the Velardeña Properties, amounts due also include a net VAT payable of approximately $50,000.

Accrued employee compensation and benefits at June 30, 2016 consist of $0.2 million of accrued vacation payable and $0.7 million related to withholding taxes and benefits payable, of which $0.3 million is related to activities at the Velardeña Properties.

December 31, 2015

Accounts payable and accruals at December 31, 2015 consist primarily of $0.3 million due to contractors and suppliers and $0.3 million related to the Company’s Velardeña Properties and corporate administrative activities, respectively.  In the case of the Velardeña Properties, amounts due also include a VAT payable that is not an offset to the VAT receivable.

Accrued employee compensation and benefits at December 31, 2015 consist of $0.1 million of accrued vacation payable and $0.4 million related to withholding taxes and benefits payable, of which $0.2 million is related to activities at the Velardeña Properties.

10.     Asset Retirement Obligation and Reclamation Liabilities

The Company retained the services of a mining engineering firm to prepare a detailed closure plan for the Velardeña Properties. The plan was completed during the second quarter 2012 and indicated that the Company had an ARO and offsetting ARC of approximately $1.9 million. The estimated $3.5 million ARO and ARC that was recorded at the time of the acquisition of the Velardeña Properties was adjusted accordingly.

The Company will continue to accrue additional estimated ARO amounts based on an asset retirement plan as activities requiring future reclamation and remediation occur.  During the first six months of 2016 the Company recognized approximately $0.1 million of accretion expense and approximately $20,000 of amortization expense related to the ARC.

The following table summarizes activity in the Velardeña Properties ARO:

	Six Months Ended
	June 30,
	2016		2015
	(in thousands)
Beginning balance	$	2,480	$	2,582
Changes in estimates, and other		(293)		(300)
Accretion expense		97		100
Ending balance	$	2,284	$	2,382

The decreases in the ARO recorded during the 2016 and 2015 periods are the result of changes in assumptions related to inflation factors and the timing of future expenditures used in the determination of future cash flows.

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The ARO set forth on the accompanying Condensed Consolidated Balance Sheets at June 30, 2016 and December 31, 2015 includes approximately $0.1 million of reclamation liabilities related to activities at the El Quevar project in Argentina.

11.     Convertible Note Payable – Related Party, Net

On October 27, 2015, the Company borrowed $5.0 million from Sentient, pursuant to the terms of a Senior Secured Convertible Note (“the Sentient Note”) and a related loan agreement (the "Sentient Loan"), with principal and accrued interest due on October 27, 2016. To comply with security regulations and stock exchange rules in the United States and Canada, the Company received stockholder approval on January 19, 2016 to allow the Sentient Note principal and accrued interest to be converted, solely at Sentient's option, into shares of the Company's common stock at a price equal to the lowest of: 1) $0.29, 90 percent of the 15-day volume weighted average price ("VWAP") for the period immediately preceding the Loan closing date, 2) 90 percent of the 15-day VWAP for the period immediately preceding the loan conversion date, or 3) an anti-dilution adjusted price based on the lowest price for which the Company has sold its stock following the loan closing date. The loan bears interest at a rate of 9.0% per annum, compounded monthly.

The beneficial conversion feature of the Sentient Note represents an embedded derivative as defined by ASC 815 "Derivatives and Hedging" ("ASC 815"). ASC 815 provides that a derivative instrument's fair value must be bifurcated from the note and separately recorded on the Company's Consolidated Balance Sheet.  The Company used a third party consultant to value the embedded derivative in the Sentient Note employing a Monte Carlo type probability analysis, which falls within Level 3 of the fair value hierarchy (see Note 13). For purposes of valuing the embedded derivative as of the Sentient Loan closing date, at December 31, 2015, at February 11, 2016 (first partial conversion date), and at June 10, 2016 (the remaining conversion date), the valuation model takes into account, among other items: 1) the probability of successfully achieving stockholder approval of the Sentient Note’s conversion feature, 2) future variations in the Company’s stock price, and 3) the probability of entering into an equity transaction prior to the Sentient Loan maturity date that would lower the conversion price.  It was determined that the embedded derivative had a fair value of approximately $1.1 million at October 27, 2015, the date the Company entered into the Sentient Loan.  Subsequent mark-to-market changes in the value of the derivative are recorded as income or loss in the Consolidated Statements of Operations and Comprehensive Loss.  The Sentient Note was recorded net of the bifurcated embedded derivative at October 27, 2015 with the $1.1 million difference between the face value and the recorded value of the note representing a loan discount that is being amortized to interest expense over the life of the loan using the interest rate method. 

The Company also incurred approximately $0.3 million in legal and other costs associated with the Sentient Loan. Per the guidance of ASU 2015-03 "Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs" (“ASU 2015-03”), the loan costs are presented as a reduction to the note payable on the accompanying Consolidated Balance Sheets and will be amortized to interest expense over the life of the Sentient Note using the interest rate method.

Because the Sentient Loan has been recorded net of the bifurcated embedded derivative and loan costs, both of which will be amortized to interest expense over the life of the loan, the effective rate of interest on the recorded loan obligation is higher than the stated nominal rate of interest. The effective interest rate on the Sentient Note is approximately 36%, compounded monthly, compared to the stated nominal rate of 9% per annum, compounded monthly.

On February 11, 2016, Sentient converted approximately $3.9 million of principal and $0.1 million of accrued interest (representing the total amount of accrued interest at the conversion date) on the Sentient Note into 23,355,000 shares of the Company's common stock at an exercise price of approximately $0.172 per share, equal to 90% of the 15-day VWAP immediately preceding the conversion date. On June 10, 2016, Sentient converted the remaining approximately $1.1 million of principal and approximately $34,000 of accrued interest (representing the total amount of accrued interest at the conversion date) pursuant to the Sentient Note into 4,011,740 shares of the Company's common stock at an exercise price of approximately $0.289 per share, equal to 90% of the 15‐day VWAP immediately preceding the loan’s original issue date. 

The Company adjusted the recorded value of the Sentient Loan as of the conversion dates to reflect the amortization of the loan discount and loan costs, shown as interest expense in the Consolidated Statements of Operations and Comprehensive Loss. For the six months ended June 30, 2016, the Company has recorded a total noncash loss on debt extinguishment of $1.7 million reflecting the difference between the value of the shares issued to Sentient as a result of

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the two separate conversions and the recorded value of the Sentient Loan, including related loan costs, loan discount and embedded derivative eliminated at the conversion dates. The Company marked-to-market the embedded derivative at each of the conversion dates and at the end of the first quarter ended March 31, 2016 and recorded a total derivative loss of $0.8 million for the six months ended June 30, 2016 in the Consolidated Statements of Operations and Comprehensive Loss.

At June 30, 2016 the Sentient Note had been fully converted and the Company had no outstanding debt.

12.     Other Liabilities

The Company recorded other current liabilities of approximately $0.2 million and $0.6 million at June 30, 2016 and December 31, 2015, respectively.  The June 30, 2016 and December 31, 2015 amounts include a net liability of approximately $0.2 million and $0.4 million respectively related to the Argentina tax on equity due for years 2009 through 2012 stemming from a tax audit of those years.  For June 30, 2016 the total $0.2 million amount payable consists of estimated interest and penalties.  The Company is awaiting the final assessment of interest and penalties, estimated not to exceed the $0.2 million accrual, payable immediately upon final assessment. The final assessment is expected during the third quarter 2016.  The December 31, 2015 amount also includes $0.1 million of accrued interest on the Sentient Loan and $0.1 million as a loss contingency on a disputed contract with a third party contractor in Mexico.  The dispute was settled during the first quarter 2016 for the amount previously accrued.

13.     Fair Value Measurements

Financial assets and liabilities and nonfinancial assets and liabilities are measured at fair value under a framework of a fair value hierarchy which prioritizes the inputs into valuation techniques used to measure fair value into three broad levels.  This hierarchy gives the highest priority to quoted prices (unadjusted) in active markets and the lowest priority to unobservable inputs.  Further, financial assets and liabilities should be classified by level in their entirety based upon the lowest level of input that was significant to the fair value measurement.  The three levels of the fair value hierarchy per ASC 820 are as follows:

Level 1:  Unadjusted quoted market prices in active markets for identical assets or liabilities that are accessible at the measurement date.

Level 2:  Quoted prices in inactive markets for identical assets or liabilities, quoted prices for similar assets or liabilities in active markets, or other observable inputs either directly related to the asset or liability or derived principally from corroborated observable market data.

Level 3:  Unobservable inputs due to the fact that there is little or no market activity. This entails using assumptions in models which estimate what market participants would use in pricing the asset or liability.

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The following table summarizes the Company’s financial assets and liabilities at fair value on a recurring basis at June 30, 2016 and December 31, 2015, by respective level of the fair value hierarchy:

	Level 1		Level 2		Level 3		Total
	(in thousands)
At June 30, 2016
Assets:
Cash and cash equivalents	$	3,932	$	—	$	—	$	3,932
Trade accounts receivable		658		—		—		658
Short-term investments		269		—		—		269
	$	4,859	$	—	$	—	$	4,859
Liabilities:
Warrant liability	$	—	$	—	$	2,486	$	2,486
	$	—	$	—	$	2,486	$	2,486
At December 31, 2015
Assets:
Cash and cash equivalents	$	4,077	$	—	$	—	$	4,077
Trade accounts receivable		546		—		—		546
Short-term investments		72		—		—		72
	$	4,695	$	—	$	—	$	4,695
Liabilities:
Warrant liability	$	—	$	—	$	210	$	210
Derivative liability		—		—		488		488
	$	—	$	—	$	698	$	698

The Company’s cash equivalents, comprised principally of U.S. treasury securities, are classified within Level 1 of the fair value hierarchy.

The Company’s trade accounts receivable are classified within Level 1 of the fair value hierarchy, are related to the sale of metals at our Velardeña Properties and the oxide plant lease and are valued at published metals prices per the terms of the refining and smelting agreements and lease rates per the plant lease agreement.

At June 30, 2016 and December 31, 2015, the Company recorded a liability for warrants to acquire the Company’s stock as a result of anti-dilution clauses in the warrant agreements that could result in a resetting of the warrant exercise price in the event the Company were to issue additional shares of its common stock in a future transaction at a price lower than the current exercise price of the warrants (see Note 15). The Company assesses the fair value of its warrant liability at the end of each reporting period, with changes in the value recorded as a separate line item on the Company’s Condensed Consolidated Statements of Operations and Comprehensive Loss. The valuation policies are approved by the Chief Financial Officer who reviews and approves the inputs used in the fair value calculations and the changes in fair value measurements from period to period for reasonableness. Fair value measurements are discussed with the Company’s Chief Executive Officer, as deemed appropriate.  The warrant liability has been recorded at fair value as of June 30, 2016 and December 31, 2015 based primarily on a valuation performed by a third party expert using a Monte Carlo simulation, which falls within Level 3 of the fair value hierarchy.  The valuation model takes into account the probability that the Company could issue additional shares in a future transaction at a lower price than the current exercise price of the warrants.

The beneficial conversion feature of the Sentient Note represents an embedded derivative as defined by ASC 815 (see Note 11). ASC 815 provides that a derivative instrument’s fair value must be bifurcated from the host contract and separately recorded on the Company’s Consolidated Balance Sheets.  At December 31, 2015, March 31 2016, and at each of the conversion dates (see Note 11) the Company had recorded a derivative liability related to the beneficial conversion feature of the Sentient Note.  On June 10, 2016, the remaining Sentient Note and related embedded derivative had been fully retired.  The Company assesses the fair value of the derivative liability at the end of each reporting period, with changes in the value recorded as a separate line item on the Company’s Condensed Consolidated Statements of Operations and Comprehensive Loss. The valuation policies are approved by the Chief Financial Officer who reviews and approves

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the inputs used in the fair value calculations and the changes in fair value measurements from period to period for reasonableness. Fair value measurements are discussed with the Company’s Chief Executive Officer, as deemed appropriate. The derivative liability was recorded at fair value at December 31, 2015, March 31, 2016, and each of the conversion dates based primarily on a valuation performed by a third party expert using a Monte Carlo simulation, which falls within Level 3 of the fair value hierarchy. The valuation model takes into account, among other items: 1) the probability of successfully achieving stockholder approval of the loan’s conversion feature, 2) future variations in the Company’s stock price, and 3) the probability of entering into an equity transaction prior to the Loan maturity date that would lower the conversion price.

In addition to the warrant exercise prices (see Note 15) and Sentient Note conversion price (see Note 11) other significant inputs to the warrant valuation model and derivative valuation model included the following as applicable:

	June 30,		December 31,
	2016		2015
Company's ending stock price	$	0.65	$	0.20
Company's stock volatility		105%		85%
Applicable risk free interest rate		0.74%		1.48%

An increase or decrease in the Company’s stock price, in isolation, would result in a relatively lower or higher fair value measurement respectively.  A decrease in the probability of the issuance of additional common stock at a lower price than the current warrant exercise price would result in a lower value for the warrants.  The table below highlights the change in fair value of the warrant and derivative liabilities.

	Fair Value Measurements
	Using Significant Unobservable
	Inputs (Level 3)
	Warrant Liabilities		Derivative  Liability
	(in thousands)
Ending balance at December 31, 2015	$	210	$	488
Conversion of Sentient Loan (see Note 11)		—		(488)
Change in estimated fair value		2,276		—
Ending balance at June 30, 2016	$	2,486	$	—

Non-recurring Fair Value Measurements

There were no non-recurring fair value measurements at June 30, 2016.

14.     Income Taxes

The Company accounts for income taxes in accordance with the provisions of ASC 740, “Income Taxes” (“ASC 740”), on a tax jurisdictional basis.  For the six months ended June 30, 2016 the Company recognized an income tax benefit of $26,000 related to the partial removal of a valuation allowance on net operating losses resulting from an unrealized gain on held for sale investments reported in other comprehensive income in the Condensed Consolidated Statements of Operations and Comprehensive Loss and treated as a source of taxable income.  The Company operates in jurisdictions that have generated ordinary losses on a year-to-date basis. However, the Company is unable to recognize a benefit for those losses, except as described in this paragraph, thus an estimated effective tax rate has not been used to report the year-to-date results.   

In accordance with ASC 740, the Company presents deferred tax assets net of its deferred tax liabilities on a tax jurisdictional basis on its Condensed Consolidated Balance Sheets.  As of June 30, 2016 and as of December 31, 2015, the Company had no net deferred tax assets or net deferred tax liabilities reported on its balance sheet.   

The Company, a Delaware corporation, and its subsidiaries file tax returns in the United States and in various foreign jurisdictions.  The tax rules and regulations in these countries are highly complex and subject to interpretation. The Company’s income tax returns are subject to examination by the relevant taxing authorities and in connection with such examinations, disputes can arise with the taxing authorities over the interpretation or application of certain tax rules within the country involved.  In accordance with ASC 740, the Company identifies and evaluates uncertain tax positions, and

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recognizes the impact of uncertain tax positions for which there is less than a more-likely-than-not probability of the position being upheld upon review by the relevant taxing authority.  Such positions are deemed to be “unrecognized tax benefits” which require additional disclosure and recognition of a liability within the financial statements.  The Company had no unrecognized tax benefits at June 30, 2016 or December 31, 2015.

15.     Equity

Offering and Private Placement

On May 6, 2016, the Company issued 8.0 million registered shares of common stock at a purchase price of $0.50 per share in a registered direct offering (the “Offering”) resulting in gross proceeds of $4.0 million. The Company incurred costs and fees of approximately $0.4 million related to the Offering, resulting in net proceeds of approximately $3.6 million.  In connection with the Offering, for each share of common stock purchased by an investor, such investor received an unregistered warrant to purchase three‐quarters of a share of common stock. The 6,000,000 warrants have an exercise price of $0.75 per share and are exercisable six months after the date of issuance and will expire five years from the initial exercise date. 

The net proceeds of the Offering were recorded in equity and appear as a separate line item in the Condensed Consolidated Statements of Changes in Equity.  Using the Black Scholes model, the fair value of the warrants issued was $3.6 million, considering the closing stock price on April 29, 2016 (the first business day preceding May 2, 2016, the date the Company entered into a definitive agreement to issue the shares), the exercise price and exercise period of the warrants, the Company’s volatility rate of 105%, and the applicable risk free rate of 0.74%. 

Sentient Note conversion

On February 11, 2016, Sentient converted approximately $3.9 million of principal and $0.1 million of accrued interest (representing the total amount of accrued interest at the conversion date) pursuant to the Sentient Note into 23,355,000 shares of the Company's common stock at an exercise price of approximately $0.172 per share, reflecting 90% of the 15-day VWAP immediately preceding the conversion date. On June 10, 2016, Sentient converted the remaining approximately $1.1 million of principal and approximately $34,000 of accrued interest (representing the total amount of accrued interest at the conversion date) pursuant to the Sentient Note into 4,011,740 shares of the Company's common stock at an exercise price of approximately $0.289 per share, equal to 90% of the 15‐day VWAP immediately preceding the loan’s original issue date (see Note 11).  At June 30, 2016 the Sentient Note had been fully converted and the Company had no further debt outstanding. After conversion, Sentient holds approximately 47% of the Company’s 88.9 million shares of issued and outstanding common stock.

Equity Incentive Plans

In May 2014, the Company’s stockholders approved amendments to the Company’s 2009 Equity Incentive Plan, adopting the Amended and Restated 2009 Equity Incentive Plan (the “Equity Plan”) pursuant to which awards of the Company’s common stock may be made to officers, directors, employees, consultants and agents of the Company and its subsidiaries.  The Company recognizes stock-based compensation costs using a graded vesting attribution method whereby costs are recognized over the requisite service period for each separately vesting portion of the award.

The following table summarizes the status of the Company’s restricted stock grants issued under the Equity Plan at June 30, 2016 and the changes during the six months then ended:

		Weighted
		Average Grant
		Date Fair
	Number of	Value Per
Restricted Stock Grants	Shares	Share
Outstanding at December 31, 2015	84,170	$	0.46
Granted during the period	—		—
Restrictions lifted during the period	(836)		2.89
Forfeited during the period	—		—
Outstanding at June 30, 2016	83,334	$	0.44

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Restrictions were lifted on 834 shares during the six months ended June 30, 2016 according to the terms of grants made to an employee in prior years. 

For the six months ended June 30, 2016 the Company recognized approximately $3,000 of compensation expense related to the restricted stock grants.  The Company expects to recognize additional compensation expense related to these awards of approximately $3,000 over the next six months.

In addition to the restricted stock grants in the table above on May 19, 2016, the Company granted a consultant 50,000 shares of fully vested stock. The Company recognized stock compensation expense of $21,000 related to the grant.

The following table summarizes the status of the Company’s stock option grants issued under the Equity Plan at June 30, 2016 and the changes during the six months then ended:

		Weighted
		Average
		Exercise
	Number of	Price Per
Equity Plan Options	Shares	Share
Outstanding at December 31, 2015	245,810	$	3.47
Granted during the period	—		—
Restrictions lifted during the year	—		—
Forfeited or expired  during period	(150,000)	$	0.56
Exercised during period	—		—
Outstanding at June 30, 2016	95,810	$	8.02
Exercisable at end of period	95,810	$	8.02
Granted and vested	95,810	$	8.02

Also, pursuant to the Equity Plan, the Company’s Board of Directors adopted the Non-Employee Director’s Deferred Compensation and Equity Award Plan (the “Deferred Compensation Plan”).  Pursuant to the Deferred Compensation Plan the non-employee directors receive a portion of their compensation in the form of Restricted Stock Units (“RSUs”) issued under the Equity Plan. The RSUs vest on the first anniversary of the grant and each vested RSU entitles the director to receive one unrestricted share of common stock upon the termination of the director’s board service.

The following table summarizes the status of the RSU grants issued under the Deferred Compensation Plan at June 30, 2016 and the changes during the six months then ended:

		Weighted
		Average Grant
	Number of	Date Fair
	Underlying	ValuePer
Restricted Stock Units	Shares	Share
Outstanding at December 31, 2015	1,245,285	$	1.66
Granted during the period	530,000		0.42
Restrictions lifted during the period	(167,968)		1.40
Forfeited during the period	—		—
Outstanding at June 30, 2016	1,607,317	$	1.28

Included in the RSUs granted during the period are 250,000 RSUs granted to the Chairman of the Board that vested immediately.  The restrictions lifted during the period relate to a director who retired during the period.

For the six months ended June 30, 2016 the Company recognized approximately $0.2 million of compensation expense related to the RSU grants.  The Company expects to recognize additional compensation expense related to the RSU grants of approximately $0.1 million over the next 11 months.

Key Employee Long-Term Incentive Plan

In December 2013, the Board of Directors of the Company approved and the Company adopted the 2013 Key Employee Long-Term Incentive Plan (the “KELTIP”), which became effective immediately. The KELTIP provides for

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the grant of units (“KELTIP Units”) to certain officers and key employees of the Company, which units will, once vested, entitle such officers and employees to receive an amount, in cash or in Company common stock issued pursuant to the Company’s Amended and Restated 2009 Equity Incentive Plan, measured generally by the price of the Company’s common stock on the settlement date. KELTIP Units are not an actual equity interest in the Company and are solely unfunded and unsecured obligations of the Company that are not transferable and do not provide the holder with any stockholder rights. Payment of the settlement amount of vested KELTIP Units is deferred generally until the earlier of a change of control of the Company or the date the grantee ceases to serve as an officer or employee of the Company.  The KELTIP Units are recorded as a liability. On May 19, 2016 the Company awarded 585,000 KELTIP Units to two officers of the Company and recorded approximately $0.3 million of compensation expense, included in stock based compensation in the Condensed Consolidated Statement of Operations and Comprehensive Loss. At June 30, 2016 the KELTIP Units were marked-to-market and the Company recognized approximately $0.1 million of additional compensation expense. At June 30, 2016 the 585,000 KELTIP Units were outstanding. At December 31, 2015 there were no KELTIP Units outstanding.

Common stock warrants

The following table summarizes the status of the Company’s common stock warrants at June 30, 2016 and the changes during the six months then ended:

		Weighted
	Number of	Average Exercise
	Underlying	Price Per
Common Stock Warrants	Shares	Share
Outstanding at December 31, 2015	8,777,409	$	3.95
Granted during period	6,000,000	$	0.75
Dilution adjustment	2,801,541
Expired  during period	—
Exercised during period	—
Outstanding at June 30, 2016	17,578,950	$	2.17

The warrants relate to prior and current registered offerings and private placements of the Company’s stock.  In September 2012, the Company closed on a registered offering and concurrent private placement with Sentient in which it sold units, consisting of one share of common stock and a five-year warrant to acquire one half of a share of common stock at an exercise price of $8.42 per share. A total of 3,431,649 warrant shares were issued and became exercisable on March 20, 2013 and will expire on September 19, 2017, five years from the date of issuance.

In September 2014 the Company closed on a registered public offering and concurrent private placement with Sentient in which it sold units, consisting of one share of common stock and a five-year warrant to acquire one half of a share of common stock at an exercise price of $1.21 per share.  A total of 4,746,000 warrant shares were issued that became exercisable on March 11, 2015 and will expire on September 10, 2019, five years from the date of issuance.

On May 6, 2016 the Company closed on the Offering (discussed above) under which the investors received an unregistered warrant to purchase three‐quarters of a share of common stock for each share of common stock purchased. The resulting 6,000,000 warrants have an exercise price of $0.75 per share and are exercisable six months after the date of issuance and will expire on November 6, 2021, five years from the initial exercise date.

The warrants issued in September 2012 and September 2014 are being recorded as a liability on the balance sheet as a result of anti-dilution clauses in the warrant agreements that could result in a resetting of the warrant exercise price in the event the Company were to issue additional shares of its common stock in a future transaction at an offering price lower than the current exercise price of the warrants. The May 2, 2016 warrant agreement did not contain an anti-dilution clause and the warrants were recorded as equity.

Pursuant to the anti-dilution clauses in the September 2012 and 2014 warrant agreements, the exercise price of the warrants has been adjusted downward as a result of the subsequent issuance of the Company’s common stock in separate transactions, including the September 2014 registered public offering and private placement, the conversion of the Sentient Note, and the recent Offering (discussed above).  As a result of these transactions, the number of shares of common stock

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issuable upon exercise of the September 2012 Warrants was increased from the original 3,431,649 shares to 6,120,573 shares (2,688,924 share increase) and the exercise price was reduced from the original $8.42 per share to $4.72 per share. The number of shares of common stock issuable upon exercise of the September 2014 Warrants was increased from the original 4,746,000 shares to 5,458,377 shares (712,377 share increase) and the exercise price was reduced from the original $1.21 per share to $0.87 per share.

At June 30, 2016 the total liability recorded for the 2012 and 2014 warrants was $2.5 million, consisting of $2.2 million for the 2014 warrants and $0.3 million for the 2012 warrants.  The warrant liability has been recorded at fair value as of June 30, 2016 based primarily on a valuation performed by a third party expert using a Monte Carlo simulation, which falls within Level 3 of the fair value hierarchy (see Note 13).

16.     Revenue and Related Costs

Oxide Plant Lease and Oxide Plant Lease Costs

For the six months ended June 30, 2016 the Company recorded revenue of approximately $3.0 million and related costs of approximately $0.9 million associated with the lease of the Velardeña Properties oxide plant. The Company recognizes oxide plant lease fees and reimbursements for labor, utility and other costs as "Revenue from oxide plant lease" in the Consolidated Statements of Operations and Comprehensive Loss following the guidance of ASC 605 regarding "income statement characterization of reimbursements received for "out-of-pocket" expenses incurred" and "reporting revenue gross as a principal versus net as an agent". ASC 605 supports recording as gross revenue fees received for the reimbursement of expenses in situations where the recipient is the primary obligor and has certain discretion in the incurrence of the reimbursable expense. The actual costs incurred for reimbursed direct labor and utility costs are reported as "Oxide plant lease costs" in the statement of operations. The Company recognizes lease fees during the period the fees are earned per the terms of the lease.

In addition, the Company had received an advance lease payment of $0.5 million during 2015 that was applied to the lease amounts due during the first four months of 2016. At December 31, 2015 the advance payment balance was recorded as deferred revenue in the amount of $0.5 million on the accompanying Condensed Consolidated Balance Sheets.

For the six months ended June 30, 2015 the Company had no plant lease revenue or plant lease costs.

Sale of Metals and Cost of Metals Sold

For the six months ended June 30, 2016 the Company had no sale of metals or cost of metals sold as a result of the suspension of mining and processing at the Velardeña Properties in November 2015.

During the six months ended June 30, 2015 the Company sold marketable lead and zinc concentrates from its Velardeña Properties to a single customer.  Under the terms of the Company’s agreement with its concentrates customer, title passed when a provisional payment was made, which occurred generally after the product was shipped and customary sales documents were completed.  Costs related to the sale of metals products include direct and indirect costs incurred to mine, process and market the products.  At June 30, 2015 the Company had written down its metals and in-process inventories to net realizable value including a charge to the cost of metals sold of approximately $0.2 million.

17.     Interest and Other Income

For the six months ended June 30, 2016 the Company had only a nominal amount of interest and other income.  For the six months ended June 30, 2015 the Company reported interest and other income of $1.4 million related primarily to the reduction of a loss contingency liability related to foreign withholding taxes that the government could assert are owed by the Company, acting as withholding agent, on certain interest payments made to a third party.

18.     Derivative Loss

During the six months ended June 30, 2016 the Company recorded approximately $2.3 million of warrant derivative loss related to an increase in the fair value of the liability recorded for warrants to acquire the Company’s common stock (see Note 15).  During the six months ended June 30, 2015 the Company recorded approximately $0.9 million of warrant derivative income related to a decrease in the fair value of the liability recorded for the warrants. The warrant liability has

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been recorded at fair value as of June 30, 2016 and 2015 based primarily on a valuation performed by a third party expert using a Monte Carlo simulation, which falls within Level 3 of the fair value hierarchy (see Note 13).  The valuation model takes into account the probability that the Company could issue additional shares in a future transaction at a lower price than the current exercise price of the warrants.  Significant inputs to the valuation model included prices for the warrants disclosed above, the probability of an additional issuance of the Company’s common stock at a lower price than the current warrant exercise price and the inputs in the table below for the respective periods.

During the six months ended June 30, 2016 the Company recorded approximately $0.8 million of derivative loss related to an increase in the fair value of the derivative liability related to the Sentient Loan (see Note 11). The derivative liability was recorded at fair value at June 10, 2016, the date of the conversion of the remaining note (see Note 11), based primarily on a valuation performed by a third party expert using a Monte Carlo simulation, which falls within Level 3 of the fair value hierarchy (see Note 13).  Significant inputs to the valuation model included: 1) the probability of successfully achieving stockholder approval of the loan’s conversion feature, 2) future variations in the Company’s stock price, and 3) the probability of entering into an equity transaction prior to the loan maturity date that would lower the conversion price.

19.     Supplemental Cash Flow Information

The following table reconciles net loss for the period to cash used in operations:

	Six Months Ended June 30,
	2016		2015
	(in thousands)
Cash flows from operating activities:
Net loss	$	(10,176)	$	(7,281)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization and depreciation		971		2,534
Accretion of asset retirement obligation		97		100
Foreign currency gain on loss contingency		—		(69)
Asset write off		34		2
Write off of loss contingency, net		—		(1,142)
Gain on sale of assets, net		(45)		(256)
Amortization of deferred loan costs		57		—
Warrant liability fair market adjustment		2,276		(868)
Derivative liability fair market adjustment		778		—
Accretion of loan discount		372		—
Loss on debt extinguishment		1,653		—
Deferred income taxes		(26)		—
Stock compensation		571		273
Changes in operating assets and liabilities:
(Increase) in trade accounts receivable		(112)		(43)
Decrease in prepaid expenses and other assets		3		131
Decrease in inventories		40		200
Decrease in value added tax recoverable, net		347		662
Increase in accrued interest payable net of amounts capitalized		85		—
Decrease in deferred revenue		(500)		—
(Decrease) in reclamation liability		(8)		(6)
(Decrease) increase in accounts payable and accrued liabilities		(183)		222
Decrease in deferred leasehold payments		(8)		(4)
Net cash used in operating activities	$	(3,774)	$	(5,545)

20.Commitments and Contingencies

The Company recorded a loss contingency of approximately $0.2 million at June 30, 2016, included in other current liabilities on the Consolidated Balance Sheets, for estimated interest and penalties related to the Argentina tax on equity (see Note 12).  The Company recorded a loss contingency of approximately $0.3 million at December 31, 2015 for

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estimated interest and penalties related to the Argentina tax on equity and a disputed contract with a third party contractor in Mexico (see Note 12).

21.Segment Information

The Company’s sole activity is the mining, construction and exploration of mineral properties containing precious metals. The Company’s reportable segments are based upon the Company’s revenue producing activities and cash consuming activities. The Company reports two segments, one for its Velardeña Properties in Mexico and the other comprised of non-revenue producing activities including exploration, construction and general and administrative activities. Intercompany revenue and expense amounts have been eliminated within each segment in order to report on the basis that management uses internally for evaluating segment performance.

The financial information relating to the Company’s segments is as follows:

							Exploration, El
			Costs		Depreciation,		Quevar, Velardeña
Three Months Ended			Applicable		Depletion and		and Administrative						Capital
June 30, 2016	Revenue		to Sales		Amortization		Expense		Pre-Tax loss		Total Assets		Expenditures
Velardeña Properties	$	1,576	$	455	$	313	$	779	$	33			$	19
Corporate, Exploration & Other		—		—		108		2,444		3,882				1
	$	1,576	$	455	$	421	$	3,223	$	3,915			$	20
Six Months Ended
June 30, 2016
Velardeña Properties	$	3,039	$	929	$	733	$	1,589	$	244	$	7,111	$	19
Corporate, Exploration & Other		—		—		238		4,378		9,958		8,332		1
	$	3,039	$	929	$	971	$	5,967	$	10,202	$	15,443	$	20
Three Months Ended
June 30, 2015
Velardeña Properties	$	1,961	$	2,775	$	1,012	$	—	$	1,347			$	28
Corporate, Exploration & Other		—		—		163		2,511		2,503				16
	$	1,961	$	2,775	$	1,175	$	2,511	$	3,850			$	44
Six Months Ended
June 30, 2015
Velardeña Properties	$	4,298	$	5,787	$	2,195	$	119	$	2,219	$	23,895	$	28
Corporate, Exploration & Other		—		—		339		5,214		5,062		8,252		16
	$	4,298	$	5,787	$	2,534	$	5,333	$	7,281	$	32,147	$	44

22.Subsequent Event

On August 2, 2016, the Company entered into a definitive agreement to sell its remaining 50% interest in the San Diego property in Mexico to Golden Tag Resources, Ltd., the company that holds the other 50% interest in the property.  As a result of the sale, the Company received approximately $379,000 in cash and 2,500,000 shares of Golden Tag.  Pursuant to the agreement, Golden Tag will be required to pay the Company a 2.0% net smelter return royalty in respect to the San Diego property.  The Company had previously written down the value of the San Diego property to approximately zero and accordingly will recognize a gain of approximately $0.5 million on the sale in the third quarter 2016.  Following receipt of the new shares, and including the 5,000,000 shares of Golden Tag previously acquired, the Company now holds 7,500,000 shares representing approximately 10% of the outstanding shares of Golden Tag. 

On August 5, 2016, the Company, through its wholly owned Mexican subsidiary, entered into an earn-in agreement with a 100% owned Mexican subsidiary of Electrum Global Holdings, L.P., a privately owned company (together “Electrum”), related to the Company’s Celaya exploration property in Mexico. The Company received an upfront payment of $200,000 and Electrum has agreed to incur exploration expenditures totaling at least $0.5 million within the first year of the agreement, reduced by certain costs Electrum previously incurred on the property since December 2015 in its ongoing surface exploration program.  Electrum, at its option, can elect to acquire an undivided 60% interest in a joint venture company to be formed to hold the Celaya project after incurring exploration expenditures totaling $2.5 million during the first three years of the agreement. Following the initial three year earn-in period the joint venture Company would be formed to hold all project assets and a management committee would be formed with one representative of the Company and two representatives of Electrum. Electrum would serve as manager of the project. The Company would have the right to maintain its 40% interest in the Celaya project by funding its share of additional exploration or development expenditures. If the Company were to elect not to contribute to additional exploration or development

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expenditures after the initial earn-in period, Electrum, at its option, would have the right to earn an additional 20% interest in the Celaya project, for a total interest of 80%, by incurring an additional $2.5 million of exploration or development expenditures over a second three year period. Following the second earn-in period the Company would have the right to maintain its 20% interest in the Celaya project by funding its share of additional exploration or development expenditures or its interest can ultimately be converted into a 10% net profits interest. The Company has previously expensed all of its costs associated with the Celaya property and accordingly will recognize a gain of $0.2 million from the farm-out of the property in the third quarter 2016.

Item 2.     Management's Discussion and Analysis of Financial Condition and Results of Operations

Our Company

We were incorporated in Delaware under the Delaware General Corporation Law in March 2009, and are the successor to Apex Silver Mines Limited for purposes of reporting under the Exchange Act. During the six months ended June 30, 2016, our only principal source of revenue was from the lease of our oxide plant. We incurred net operating losses for the six months ended June 30, 2016 and 2015.

The Company remains focused on evaluating and searching for mining opportunities in North America (including Mexico) with near term prospects of mining, and particularly for properties within reasonable haulage distances of our Velardeña Properties.  The Company is also reviewing strategic opportunities, focusing primarily on development or operating properties in North America, including Mexico.

This discussion should be read in conjunction with Management’s Discussion and Analysis included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2015, filed with the SEC on February 25, 2016.

2016 Highlights

Offering and Private Placement

On May 6, 2016, we issued 8.0 million registered shares of common stock at a purchase price of $0.50 per share in a registered direct offering (the “Offering”) resulting in gross proceeds of $4.0 million. We incurred costs and fees of approximately $0.4 million related to the Offering resulting in net proceeds of approximately $3.6 million.  In connection with the Offering, for each share of common stock purchased by an investor, such investor received an unregistered warrant to purchase three‐quarters of a share of common stock. The warrants have an exercise price of $0.75 per share and are exercisable six months after the date of issuance and will expire five years from the initial exercise date.

Care and maintenance activities at the Velardeña Properties

Due to continuing net operating losses, we suspended mining and sulfide processing activities at the Velardeña Properties during the first half of November 2015 in order to conserve the future value of the asset. We have placed the mine and sulfide processing plant on care and maintenance to enable a re-start of either the mine or the mill when mining and processing plans and metals prices support a cash positive outlook for the property.  We incurred approximately $1.1 million of costs during the six months ended June 30, 2016 on remaining shutdown expenditures and for care and maintenance activities and we expect to incur approximately $0.3 million in quarterly holding costs going forward while mining and processing remain suspended. 

Velardeña Oxide Plant Lease Agreement

In July 2015 a wholly-owned subsidiary of Hecla Mining Company leased our Velardeña oxide plant for an initial term of 18 months beginning July 1, 2015. Hecla may extend the initial 18 month term for six additional months at its option.  We have agreed to permit Hecla at its option to extend the lease for an additional 18 months following the initial six month extension until December 31, 2018 in exchange for constructing, at its own cost, an expansion of the tailings impoundment. It is not known at this time if Hecla will exercise its options to extend the lease. Hecla is responsible for ongoing operation and maintenance of the oxide plant.  During the six months ended June 30, 2016, Hecla processed approximately 62,000 tonnes of material through the oxide plant, resulting in revenues to us of approximately $1.4 million plus fixed fees and net reimbursable costs totaling approximately $1.6 million. Now that Hecla has reached its intended

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processing throughput of approximately 400 tonnes per day, net cash payments to us, net of reimbursable costs, should total approximately $400,000 per month, including variable and fixed fees, or nearly $5.0 million annually. The Company expects to receive net cash flow under the lease of approximately $4.5 million in 2016.

Completion of Sentient Loan Conversion

On June 10, 2016, Sentient converted the remaining approximately $1.1 million of principal and approximately $34,000 of accrued interest (representing the total amount of accrued interest at the conversion date) pursuant to the $5.0 million Sentient Note into 4,011,740 shares of our common stock at an exercise price of approximately $0.289 per share, equal to 90% of the 15‐day VWAP immediately preceding the loan’s original issue date. In February 2016 Sentient had converted $3.9 million of principal and $0.1million of accrued interest into 23,355,000 shares of our common stock at an exercise price of approximately $0.172 per share, reflecting 90% of the 15-day volume weighted average price (VWAP) immediately preceding the conversion date.After the conversions, the Sentient Note is no longer outstanding and Sentient holds approximately 47 % of our 88.9 million shares of issued and outstanding common stock.

Santa Maria

We continued exploration work during the second quarter 2016 at the Santa Maria property west of Hildalgo de Parral, Chihuahua, which we have the right to acquire under an option agreement.  We mined approximately 1,500 tonnes of material as a bulk sample.  In total, for the six months ended June 30, 2016 we mined approximately 4,500 tonnes of material with grades of approximately 235 grams per tonne (gpt) silver and 0.7 gpt gold.  We processed the bulk sample through a toll milling facility, generating approximately 100 tonnes of concentrates containing approximately 22,000 ounces of silver and 44 ounces of gold.  The concentrates were sold to a third party for approximately $300,000 during the six month period ended June 30, 2016 consisting of approximately 21,000 payable ounces of silver and 40 payable ounces of gold, which offset exploration costs. We have recently completed an underground drilling program of 2,200 meters in 24 drill holes.  Assay results are partially complete and we expect to evaluate the results and update the resource estimate and, if justified, complete a preliminary economic assessment during the third quarter 2016.

San Luis del Cordero

We commenced a $0.6 million exploration drilling program in the first quarter 2016 at the Santa Rosa vein in the San Luis del Cordero project in Durango State, Mexico.  The 20 hole, 4,600 meter drilling program was completed in June 2016, and we received drill results from that program in July.  Based on our evaluation of those July results, we concluded that further work on this project is not likely to meet our near-term objectives and we plan to terminate the farm-in arrangement for the property in August 2016.

El Quevar

We continue to hold our El Quevar property on care and maintenance until we can find a partner to fund further exploration.

Other Exploration

In June 2016 we began a 2,000 meter core drilling program at the Rodeo property, approximately 80 kilometers west of the Velardeña Properties in Durango Mexico at a cost of $300,000 to $400,000. If our exploration efforts are successful, material from this property could be trucked to the Velardeña oxide plant for processing after the Hecla lease has terminated. We acquired the Rodeo property in 2015.

Financial Results of Operations

For the results of continuing operations discussed below, we compare the results from operations for the three and six months ended June 30, 2016 to the results from operations for the three and six months ended June 30, 2015. 

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Three Months Ended June 30, 2016

Revenue from oxide plant lease. In July 2015 a third party leased our inactive Velardeña oxide plant. We recorded revenue of $1.6 million for the three months ended June 30, 2016 related to the lease. The oxide plant was not leased during the three months ended June 30, 2015.

Oxide plant lease costs. During the three months ended June 30, 2016 we recorded $0.5 million of costs related to the oxide plant lease consisting primarily of reimbursable labor and utility costs which for accounting purposes were also included in revenue from the oxide plant lease. The oxide plant was not leased during the three months ended June 30, 2015.

Revenue from the sale of metals.  We recorded no revenue for the three months ended June 30, 2016 due to the suspension of mining and processing at our Velardeña Properties in Mexico beginning November 2015.  We recorded $2.0 million in revenue for the three months ended June 30, 2015, all from the sale of lead, zinc and pyrite concentrates from our Velardeña Properties in Mexico.

Costs of metals sold.  We recorded no cost of metals sold during the three months ended June 30, 2015 due to the suspension of mining and processing at our Velardeña Properties in Mexico beginning November 2015.  For the three months ended June 30, 2015 we recorded $2.8 million of costs of metals sold, including a $0.1 million write down of finished goods inventory to its estimated net realizable value. 

Exploration expense.Our exploration expense, including drilling at the San Luis del Cordero, Santa Maria, and Rodeo properties, property holding costs and allocated administrative expenses totaled $1.2 million for the three months ended June 30, 2016, as compared to $1.3 million for the three months ended June 30, 2015. Exploration expense for both years was incurred primarily in Mexico.  The decrease in exploration expenses in 2016 is primarily related to lower costs incurred for drilling programs in Mexico.

Velardeña project expense.  We recorded no Velardeña project expenses for the three months ended June 30, 2016 or June 30, 2015.  We recorded only a nominal amount for capital expenditures at our Velardeña Properties for the three months ended June 30, 2015 and recorded no amounts in the 2016 period.

Velardeña shutdown and care and maintenance costs.  We recorded $0.5 million for the three months ended June 30, 2016 for expenses related to shut down and care and maintenance at our Velardeña Properties as the result of the suspension of mining and processing activities in November 2015.  No amounts were recorded for the three months ended June 30, 2015.

El Quevar project expense.During the three months ended June 30, 2016 and 2015 we incurred $0.2 million and $0.4 million of expenses, respectively, primarily related to holding costs for the Yaxtché deposit at our El Quevar project in Argentina. The decrease in expense for the 2016 period is primarily related to an accrual for Argentina equity tax recorded during the 2015 period resulting from an audit of certain prior years.  For both years, costs incurred for work performed outside of the Yaxtché deposit in Argentina are included in “Exploration Expense”, discussed above.

Administrative expense.Administrative expenses totaled $1.0 million for the three months ended June 30, 2016 compared to $1.0 million for the three months ended June 30, 2015. Administrative expenses, including costs associated with being a public company, are incurred primarily by our corporate activities in support of the Velardeña Properties, El Quevar project and our exploration portfolio. The $0.9 million of administrative expenses we incurred during the second quarter 2016 are comprised of $0.4 million of employee compensation and directors’ fees, $0.3 million of professional fees and $0.3 million of insurance, rents, travel expenses, utilities and other office costs. The $1.0 million of administrative expenses we incurred during the second quarter 2015 is comprised of $0.6 million of employee compensation and directors’ fees, $0.1 million of professional fees and $0.3 million of insurance, rents, travel expenses, utilities and other office costs.

Stock based compensation.During the three months ended June 30, 2016 we incurred approximately $0.5 million related to stock based compensation compared to approximately $0.1 million for the three months ended June 30, 2015. Stock based compensation varies from period to period depending on the number and timing of shares granted, the type of grant, the market value of the shares on the date of grant and other variables. The 2016 stock based compensation

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amount includes $0.4 million related to KELTIP grants made to two officers (see Note 15 to the consolidated financial statements filed as part of this 10-Q for a discussion of KELTIP grants).

Reclamation and accretion expense. During each of the three months ended June 30, 2016 and 2015 we incurred a nominal amount of reclamation expense related to the accretion of an asset retirement obligation at the Velardeña Properties and in 2015 reclamation activities at the El Quevar project in Argentina.

Other operating income, net. We recorded $0.2 million of other operating income for the three months ended June 30, 2016 compared to $0.3 million for the three months ended June 30, 2015. The net amount for both periods consists primarily of net gains recorded on the sales of certain fixed assets and non-strategic exploration properties.

Depreciation, depletion and amortization. During the three months ended June 30, 2016 we incurred depreciation, depletion and amortization expense of $0.4 million compared to $1.2 million for the three months ended June 30, 2015. The decrease in depreciation, depletion and amortization in 2016 is primarily the result of the suspension of mining and processing at the Velardeña Properties as noted above.

Interest and other income. We recorded only a nominal amount of interest and other income for the three months ended June 30, 2016.  During the three months ended June 30, 2015 we recorded approximately $0.5 million of interest and other income primarily related to the reduction of a loss contingency liability related to foreign withholding taxes that the government could assert are owed by the Company, acting as withholding agent, on certain interest payments made to a third party.

Warrant derivative (loss) gain. During the three months ended June 30, 2016 we recorded a loss of approximately $1.1 million related to an increase in the fair value of the liability recorded for warrants to acquire the Company’s stock. During the three months ended June 30, 2015 we recorded a gain of approximately $0.2 million related to a decrease in the fair value of the liability recorded for warrants to acquire the Company’s common stock. (See Note 13 of our consolidated financial statements filed as part of this Form 10-Q). 

Derivative loss. For the three months ended June 30, 2016 we recorded a $0.1 million loss related to the fair value adjustment to the beneficial conversion feature of the Sentient Note, which constitutes an imbedded derivative (see Note 13 of our consolidated financial statements filed as part of this Form 10-Q). The $0.1 million loss was recorded prior to the remaining conversion of the note on June 10, 2016.  For the three months ended June 30, 2015 we had no derivative gain or loss. 

Loss on foreign currency. We recorded nominal foreign currency losses for the three months ended June 30, 2016 and 2015. Foreign currency gains and losses are primarily related to the effect of currency fluctuations on monetary assets net of liabilities held by our foreign subsidiaries that are denominated in currencies other than US dollars.

Income taxes. We recorded a minimal income tax benefit for the three months ended June 30, 2016 related to mark-to-market held for sale investment gains recorded as other comprehensive income.  We recorded no income tax expense or benefit for the three months ended June 30, 2015.

Six Months Ended June 30, 2016

Revenue from oxide plant lease. In July 2015 a third party leased our inactive Velardeña oxide plant. We recorded revenue of $3.0 million for the six months ended June 30, 2016 related to the lease. The oxide plant was not leased during the six months ended June 30, 2015.

Oxide plant lease costs. During the six months ended June 30, 2016 we recorded $0.9 million of costs related to the oxide plant lease consisting primarily of reimbursable labor and utility costs which for accounting purposes were also included in revenue from the oxide plant lease. The oxide plant was not leased during the six months ended June 30, 2015.

Revenue from the sale of metals.  We recorded no revenue for the six months ended June 30, 2016 due to the suspension of mining and processing at our Velardeña Properties beginning November 2015.  We recorded $4.3 million in revenue for the six months ended June 30, 2015, all from the sale of lead, zinc and pyrite concentrates from our Velardeña Properties in Mexico.

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Costs of metals sold.  We recorded no cost of metals sold during the six months ended June 30, 2016 due to the suspension of mining and processing at our Velardeña Properties in Mexico beginning November 2015.  For the six months ended June 30, 2015 we recorded $5.8 million of costs of metals sold including a $0.2 million write down of finished goods inventory to its estimated net realizable value. 

Exploration Expense.Our exploration expense, including drilling at the San Luis del Cordero, Santa Maria, and Rodeo properties, property holding costs and allocated administrative expenses, totaled $1.9 million for the six months ended June 30, 2016, as compared to $2.2 million for the six months ended June 30, 2015. Exploration expense for both years was incurred primarily in Mexico.  The decrease in exploration expenses in 2016 is primarily related to lower costs incurred for drilling programs in Mexico.

Velardeña project expense. We did not record any Velardeña project expense during the six months ended June 30, 2016 as the result of the suspension of mining and processing at the Velardeña Properties in November 2015. We recorded $0.1 million of Velardeña project expense for the six months ended June 30, 2015 primarily related to the preparation of an updated estimate of mineralized material for the Velardeña Properties. We did not record any amounts for capital expenditures for the six months ended June 30, 2016 at our Velardeña Properties. Only a nominal amount of capital expenditures were recorded for the six months ended June 30, 2015.

Velardeña shutdown and care and maintenance costs.  We recorded $1.1 million for the six months ended June 30, 2016 for expenses related to shut down and care and maintenance at our Velardeña Properties as the result of the suspension of mining and processing activities in November 2015.  No amounts were recorded for the six months ended June 30, 2015.

El Quevar project expense.During the six months ended June 30, 2016 and 2015 we incurred $0.4 million and $0.8 million of expenses, respectively, primarily related to holding costs for the Yaxtché deposit at our El Quevar project in Argentina. The decrease in expense for the 2016 period is primarily related to an accrual for Argentina equity tax recorded in 2015 resulting from an audit of certain prior years. For both years, costs incurred for work performed outside of the Yaxtché deposit in Argentina are included in “Exploration Expense”, discussed above.

Administrative expense.Administrative expenses totaled $2.2 million for the six months ended June 30, 2016 compared to $2.3 million for the six months ended June 30, 2015. Administrative expenses, including costs associated with being a public company, are incurred primarily by our corporate activities in support of the Velardeña Properties, El Quevar project and our exploration portfolio. The $2.1 million of administrative expenses we incurred during the six months ended June 30, 2016 is comprised of $0.7 million of employee compensation and directors’ fees, $0.8 million of professional fees and $0.7 million of insurance, rents, travel expenses, utilities and other office costs. The $2.3 million of administrative expenses we incurred during the first quarter 2015 is comprised of $1.1 million of employee compensation and directors’ fees, $0.5 million of professional fees and $0.7 million of insurance, rents, travel expenses, utilities and other office costs.

Stock based compensation.During the six months ended June 30, 2016 we incurred $0.6 million of expense related to stock based compensation compared to $0.3 million for six months ended June 30, 2015. Stock based compensation varies from period to period depending on the number and timing of shares granted, the type of grant, the market value of the shares on the date of grant and other variables. The 2016 stock based compensation amount includes $0.4 million related to KELTIP grants made to two officers (see Note 15 to the consolidated financial statements filed as part of this 10-Q for a discussion of KELTIP grants)

Reclamation and accretion expense. During each of the six months ended June 30, 2016 and 2015 we incurred approximately $0.1 million of reclamation expense related to the accretion of an asset retirement obligation at the Velardeña Properties and in 2015 reclamation activities at the El Quevar project in Argentina.

Other operating income, net. We recorded $0.2 million of other operating income for the six months ended June 30, 2016 compared to $0.5 million for the six months ended June 30, 2015.  The net amount for both years consists primarily of net gains recorded on the sales of certain fixed assets and non-strategic exploration properties.

Depreciation, depletion and amortization. During the six months ended June 30, 2016 we incurred depreciation, depletion and amortization expense of $1.0 million compared to $2.5 million for the six months ended June 30, 2015. The

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decrease in depreciation, depletion and amortization in 2016 is primarily the result of the suspension of operations at the Velardeña Properties as noted above.

Interest and other income. We recorded only a nominal amount of interest and other income for the six months ended June 30, 2016.  During the six months ended June 30, 2015 we recorded approximately $1.4 million of interest and other income primarily related to the reduction of a loss contingency liability related to foreign withholding taxes that the government could assert are owed by the Company, acting as withholding agent, on certain interest payments made to a third party.

Warrant derivative (loss) gain. During the six months ended June 30, 2016 we recorded a loss of approximately $2.3 million related to an increase in the fair value of the liability recorded for warrants to acquire the Company’s stock. During the six months ended June 30, 2015 we recorded a gain of approximately $0.9 million related to a decrease in the fair value of the liability recorded for warrants to acquire the Company’s stock. (See Note 13 of our consolidated financial statements filed as part of this Form 10-Q). 

Derivative loss. For the six months ended June 30, 2016 we recorded a $0.8 million loss related to the fair value adjustment to the beneficial conversion feature of the Sentient Note which constitutes an imbedded derivative (see Note 13 of our consolidated financial statements filed as part of this Form 10-Q). The $0.8 million loss was recorded prior to the remaining conversion of the Note on June 10, 2016. For the six months ended June 30, 2015 we had no derivative gain or loss.

Loss on foreign currency. We recorded nominal foreign currency losses for the six months ended June 30, 2016 and 2015. Foreign currency gains and losses are primarily related to the effect of currency fluctuations on monetary assets net of liabilities held by our foreign subsidiaries that are denominated in currencies other than US dollars.

Income taxes. We recorded a minimal income tax benefit for the six months ended June 30, 2016 related to mark-to-market held for sale investment gains recorded as other comprehensive income.  We recorded no income tax expense or benefit for the six months ended June 30, 2015.

Liquidity, Capital Resources and Going Concern

At June 30, 2016 our aggregate cash and cash equivalents totaled $3.9 million, $0.2 million lower than the $4.1 million in similar assets held at December 31, 2015. The reduction is due primarily to $1.1  million in shutdown and care and maintenance costs at the Velardeña Properties, $1.9 million in exploration expenditures, including costs related to drilling at the San Luis del Cordero, Santa Maria, and Rodeo properties, $0.4 million in care and maintenance and property holding costs at the El Quevar project, and $2.2 million in general and administrative expenses, $0.5 million from an increase in working capital primarily related to a decrease in deferred revenue from the lease of the oxide plant, offset in part by $0.2 million of net proceeds from the sale of nonstrategic exploration properties, $2.1 million of net operating margin received pursuant to the lease (defined as oxide plant lease revenue less oxide plant lease costs) and $3.6 million of net proceeds received in a registered direct offering of our common stock as discussed below.

On February 11, 2016, Sentient converted approximately $3.9 million of principal and $0.1 million of accrued interest (representing the total amount of accrued interest at the conversion date) into 23,355,000 shares of our common stock. On June 10, 2016 Sentient converted the remaining approximately $1.1 million and approximately $34,000 of accrued interest into 4,011,740 shares of our common stock.  At June 30, 2016 we had no outstanding debt. See Note 11 for a full discussion of the Sentient Note.

On May 6, 2016, we issued 8.0 million registered shares of common stock at a purchase price of $0.50 per share in a registered direct offering (the “Offering”) resulting in gross proceeds of $4.0 million. We incurred costs and fees of approximately $0.4 million related to the Offering resulting in net proceeds of approximately $3.6 million.  In connection with the Offering, for each share of common stock purchased by an investor, such investor received an unregistered warrant to purchase three‐quarters of a share of common stock. The warrants have an exercise price of $0.75 per share and are exercisable six months after the date of issuance and will expire five years from the initial exercise date.

We currently expect that we will have sufficient cash to continue our business plan into 2017 without external funding.  In addition to our $3.9 million cash balance at June 30, 2016, we expect to receive approximately $2.4 million in net operating margin from the lease of the oxide plant in the remaining two quarters of 2016 and has received $0.6 million

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from the sale of non-strategic exploration properties in the third quarter. We currently plan to spend approximately $3.7 million in the remaining two quarters of 2016, as detailed below, resulting in a projected cash balance at the end of 2016 of approxiamtely $3.0 million.

· Approximately $0.7 million at the Velardeña Properties for care and maintenance;

· Approximately $1.1 million on exploration activities and property holding costs related to our portfolio of exploration properties located primarily in Mexico, including project assessment and development costs relating to the Santa Maria, Rodeo, and other properties;

· Approximately $0.3 million at the El Quevar project to fund ongoing maintenance activities, property holding costs, and continuing  project evaluation costs;

· Approximately $1.4 million on general and administrative costs; and

· Approximately $0.4 million on an increase in working capital primarily related to a reduction in current liabilities involving the payment of equity taxes in a foreign jurisdiction.

The actual amount that we spend during the remainder of 2016 and the projected yearend cash balance may vary significantly from the amounts specified above and will depend on a number of factors, including variations from anticipated care and maintenance costs at the Velardeña Properties and costs for continued exploration, project assessment, and development at our other exploration properties, including Santa Maria and Rodeo.

The financial statements have been prepared on a going concern basis under which an entity is considered to be able to realize its assets and satisfy its liabilities in the normal course of business. However, our continuing operations are dependent upon our ability to secure sufficient funding and to generate future profitable operations. The underlying value and recoverability of the amounts shown as property, plant and equipment in Note 8 are dependent on our ability to generate positive cash flows from operations and to continue to fund exploration and development activities that would lead to profitable mining activities or to generate proceeds from the disposition of property, plant and equipment. There can be no assurance that we will be successful in generating future profitable operations or securing additional funding in the future on terms acceptable to us or at all.

Recent Accounting Pronouncements

In March 2016, the FASB issued ASU 2016-09, “Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting” (“ASU 2016-09”), which simplifies several aspects of the accounting for share-based payment award transactions including accounting for income taxes and classification of excess tax benefits on the statement of cash flows, forfeitures and minimum statutory tax withholding requirements. For us, ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any interim or annual period. The adoption of this update is not expected to have a material impact on our consolidated financial position or results of operations.

In March 2016, the FASB issued ASU 2016-08,  “Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)” (“ASU 2016-08”), which clarifies principal versus agent when another party, along with the entity, is involved in providing a good or service to a customer. Topic 606, Revenue from Contracts with Customers, requires an entity to determine whether the nature of its promise is to provide that good or service to the customer (i.e., the entity is a principal) or to arrange for the good or service to be provided to the customer by the other party (i.e., the entity is an agent). For us, ASU 2016-08 is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The adoption of this update is not expected to have a material impact on our consolidated financial position or results of operations.

In January 2016, the FASB issued ASU No. 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities” (“ASU 2016-01”), which amended its standards related to the accounting of certain financial instruments. This amendment addresses certain aspects of recognition, measurement, presentation and disclosure. The new rules will become effective for annual and interim periods beginning after December 15, 2017. Early adoption is not permitted. We are in the process of evaluating the impact the amendment will have on our consolidated financial position

29

or results of operations. In November 2015, the FASB issued ASU No. 2015-17, “Income Taxes: Balance Sheet Classification of Deferred Taxes” (“ASU 2015-17”). ASU 2015-17 requires that deferred tax assets and liabilities be classified as noncurrent on the balance sheet. This update is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. The adoption of this update is not expected to have a material impact on our consolidated financial position or results of operations.

On August 27, 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements - Going Concern (Subtopic 205-40), Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern” (“ASU 2014-15”).  ASU 2014-15 will require management to evaluate whether there are conditions and events that raise substantial doubt about the Company’s ability to continue as a going concern within one year after the financial statements are issued on both an interim and annual basis. Management will be required to provide certain footnote disclosures if it concludes that substantial doubt exists or when its plans alleviate substantial doubt about the Company’s ability to continue as a going concern. ASU 2014-15 becomes effective for annual periods beginning in 2016 and for interim reporting periods starting in the first quarter of 2017. The Company does not expect the adoption of this update to have a material impact on its consolidated financial position or results of operations.

Forward-Looking Statements

Some information contained in or incorporated by reference into this Quarterly Report on Form 10-Q may contain forward-looking statements. These statements include comments relating to our plans, expectations and assumptions concerning anticipated care and maintenance costs at the Velardeña Properties; expectations regarding the oxide plant lease including anticipated net cash payments;planned exploration of certain properties in Mexico and other planned exploration activities and the planned costs of exploration; plans and anticipated costs related to our El Quevar project; anticipated 2016 expenditures; expected need for external financing; and statements concerning our financial condition, business strategies and business and legal risks.  

The use of any of the words “anticipate,” “continues,” “estimate,” “expect,” “may,” “will,” “project,” “should,” “believe” and similar expressions are intended to identify uncertainties. We believe the expectations reflected in those forward-looking statements are reasonable. However, we cannot assure that these expectations will prove to be correct. Actual results could differ materially from those anticipated in these forward-looking statements as a result of the factors set forth below and other factors set forth in, or incorporated by reference into this report:

· Higher than anticipated care and maintenance costs at the Velardeña Properties in Mexico or at El Quevar in Argentina;  

· Lower revenue than anticipated from the oxide lease, which could result from delays or problems at the third party’s mine or at the oxide plant, permitting problems at the third party’s mine or the oxide plant, delays in constructing additional tailings capacity at the oxide plant, earlier than expected termination of the lease or other causes;

· Continued decreases or insufficient increases in silver and gold prices;

· Whether we are able to raise the necessary capital required to continue our business on terms acceptable to us or at all, and the likely negative effect of continued low silver and gold prices or unfavorable exploration results;

· Unfavorable results from exploration at the Santa Maria, Rodeo or other exploration properties and whether we will be able to advance these or other exploration properties;

· Risks related to the El Quevar project in Argentina, including whether we will be able to find a joint venture partner to advance the project, the feasibility and economic viability and unexpected costs of maintaining the project;

· Variations in the nature, quality and quantity of any mineral deposits that are or may be located at the Velardeña Properties or the Company’s exploration properties, changes in interpretations of geological information, and unfavorable results of metallurgical and other tests;

· Whether we will be able to mine and sell minerals successfully or profitably at any of our current properties at current or future silver and gold prices and achieve our objective of becoming a mid-tier mining company; 

30

· Potential delays in our exploration activities or other activities to advance properties towards mining resulting from environmental consents or permitting delays or problems, accidents, problems with contractors, disputes under agreements related to exploration properties, unanticipated costs and other unexpected events;

· Our ability to retain key management and mining personnel necessary to successfully operate and grow our business;

· Economic and political events affecting the market prices for gold, silver, zinc, lead and other minerals that may be found on our exploration properties;

· Political and economic instability in Mexico, Argentina, and other countries in which we conduct our business and future actions of any of these governments with respect to nationalization of natural resources or other changes in mining or taxation policies;

· Volatility in the market price of our common stock; and

· The factors discussed under "Risk Factors" in our Annual Report on Form 10-K for the year ended December 31, 2015 and item 1A of this Report on Form 10-Q.

Many of these factors are beyond our ability to control or predict. You should not unduly rely on these forward-looking statements. These statements speak only as of the date of this Quarterly Report on Form 10-Q.  Except as required by law, we are not obligated to publicly release any revisions to these forward-looking statements to reflect future events or developments.

Item 3.     Quantitative and Qualitative Disclosures About Market Risk

Interest Rate Risk

We invest substantially all of our excess cash in U.S. government and debt securities rated “investment grade” or better. The rates received on such investments may fluctuate with changes in economic conditions. Based on the average cash and investment balances outstanding during the second quarter 2016, a 1% decrease in interest rates would have resulted in only a nominal reduction in interest income for the period.

Foreign Currency Exchange Risk

Although most of our expenditures are in U.S. dollars, certain purchases of labor, supplies and capital assets are denominated in other currencies, primarily in Mexico. As a result, currency exchange fluctuations may impact the costs of our exploration and mining activities. To reduce this risk, we maintain minimum cash balances in foreign currencies and complete most of our purchases in U.S. dollars.

Commodity Price Risk

We are primarily engaged in the exploration and mining of properties containing gold, silver, zinc, lead and other minerals. As a result, decreases in the price of any of these metals have the potential to negatively impact our ability to establish reserves and mine on our properties. We currently hold no commodity derivative positions.

Item 4.     Controls and Procedures  

(a)Evaluation of Disclosure Controls and Procedures

Our Chief Executive Officer (principal executive officer) and Chief Financial Officer (principal financial officer) have evaluated the effectiveness of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) as of June 30, 2016 (the “Evaluation Date”). Based on such evaluation, such officers have concluded that, as of the Evaluation Date, our disclosure controls and procedures are effective to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act are recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms and to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer to allow timely decisions regarding required disclosure.

31

(b)  Changes in Internal Control over Financial Reporting

There have been no changes in our internal control over financial reporting that occurred during the period covered by this report that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1.     Legal Proceedings

None.

Item 1A.  Risk Factors

The risk factors for the quarter ended June 30, 2016, are substantially the same as those set forth in Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2015.

Item 2.     Unregistered Sales of Equity Securities and Use of Proceeds

None.

Item 3.     Defaults Upon Senior Securities

None.

Item 4.     Mine Safety Disclosures

None.

Item 5.     Other Information

None.

32

Item 6.     Exhibits

10.1	Form of Unit Agreement Pursuant to the 2013 Key Employee Long-Term Incentive Plan
31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act.
31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act.
32	Certification of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. 1350 (Section 906 of the Sarbanes-Oxley Act).
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Calculation Linkbase Document
101.DEF	XBRL Taxonomy Definition Document
101.LAB	XBRL Taxonomy Label Linkbase Document
101.PRE	XBRL Taxonomy Presentation Linkbase Document

33

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

GOLDEN MINERALS COMPANY

Date:	August 10, 2016	By:	/s/ Warren M. Rehn
			Warren M. Rehn
			Chief Executive Officer
Date:	August 10, 2016	By:	/s/ Robert P. Vogels
			Robert P. Vogels
			Senior Vice President and Chief Financial Officer

34

EX-10.1

Exhibit 10.1

GOLDEN MINERALS COMPANY

2013 KEY EMPLOYEE LONG-TERM INCENTIVE PLAN

UNIT GRANT AGREEMENT

THIS UNIT GRANT AGREEMENT (this “Agreement”), is made as of the ____ day of _______, 20____ (the “Grant Date”), between Golden Minerals Company, a Delaware corporation (the “Company”) and __________ (“Executive”).

RECITAL

The Company desires to retain the services of Executive and encourage and motivate Executive to contribute to the growth of the Company through the ownership of units which entitle Executive to the value of a number of shares of the Company’s common stock, $0.01 par value (“Shares”) equal to the number of units payable to Executive upon settlement pursuant to the terms and conditions of the Golden Minerals Company 2013 Key Employee Long-Term Incentive Plan (the “Plan”) and this Agreement.  Such ownership will provide the Executive with a more direct stake in the future of the Company and encourage the Executive to remain with the Company and/or its Affiliates, as applicable. Capitalized terms, which are not defined herein, shall have the meaning set forth in the Plan.

AGREEMENT

In consideration of the mutual promises and covenants herein contained, the parties hereto agree as follows:

1.Grant of Units.  The Company hereby grants to Executive ______ Units (the “Units”) in order to provide compensation to Executive for his services to the Company, subject to the terms, conditions and restrictions of this Agreement and the Plan.

2.Vesting.  

(a)Executive shall have no rights to any payments with respect to the Units until the Units have vested according to the Vesting Schedule set forth below. Vesting is conditioned upon the Continuous Service of the Executive through each Vesting Date set forth below; provided, however, that Executive’s Units shall become fully vested if the Executive’s Continuous Service is terminated by reason of the Executive’s death, Disability or Retirement. In addition, in the event of a Change of Control, all outstanding Units shall vest in full. For purposes of this Agreement, “Continuous Service” shall mean the uninterrupted provision of services as an Employee, with such Continuous Service ending on the date the Executive ceases to be an Employee. Notwithstanding the foregoing, the Committee may, by resolution, at any time prior to the Executive’s termination of employment, choose to alter the above definition of “Continuous

Service” for all purposes of this Agreement to be as defined in Section 2(i) of the Plan, but only if such change would not be materially adverse to the existing rights of the Executive.

(b)If the Executive’s Continuous Service is terminated during the vesting period, the Executive’s remaining unvested Units (after giving effect to any accelerated vesting provided in Section 2(a) above) shall terminate and become forfeited.

Number:[*]

Grant Date:[*]

Vesting Schedule:[*]

3.Payment of Vested Units. 

(a)Payment in respect of Executive’s vested Units is subject to a mandatory Deferral Direction and shall be paid at the time set forth in Section 7(b) or Section 13 (if applicable) of the Plan (the “Payment Date”) (generally upon the earliest to occur of (i) a 409A Change of Control and the later of (A) the date of Executive’s Separation from Service and (B) the Vesting Date of the Units as set forth above).

(b)On the Payment Date, the Executive shall be entitled to receive an amount determined in accordance with Section 7(c) of the Plan (the “Settlement Amount”). 

(c)The Settlement Amount will generally be payable in cash; however, the Company has the right in certain circumstances specified in the Plan to pay the Settlement Amount in Shares under the Company’s Amended and Restated 2009 Equity Incentive Plan or any other such plan pursuant to which the Company’s Shares are issuable that has been adopted in accordance with applicablelaw and applicable stock exchange rules.

(d)Payments made pursuant to Units shall be subject to applicable federal, state, local and other withholding taxes, and the Company’s obligation to make payment pursuant to the Units shall be subject to Executive making arrangement with the Company for the withholding of same.

4.No Stockholder Rights. Executive shall not have any rights as a stockholder of the Company with respect to any Units granted to Executive under this Agreement.

5.No Rights; Employment. The grant of Units, execution of this Agreement or the vesting of any Units shall not confer upon Executive any right to, or guaranty of, continued employment with Company or any of its subsidiaries, nor in any way limit the right of Company or such subsidiaries to terminate at any time the employment of or relationship with the Executive.

6.Restrictions on Transfer.  Units, whether or not vested, may not be sold, assigned, transferred, by gift or otherwise, pledged or hypothecated, or otherwise disposed of, by operation of law or otherwise, at any time.  Any attempt to do so shall be null and void. 

2

7.Notices.  All notices to Executive or other persons then entitled to receive payment under this Agreement shall be delivered  to Executive at the Company’s office or such other address as shall be specified in writing by Executive or such other person. All notices to Company shall be delivered to the attention of its Chief Financial Officer at its principal office.

8.Governing Law.  The Units shall be construed under and governed by the laws of the State of Delaware as to all matters, including, but not limited to, matters of validity, construction, effect and performance.

9.Severability.  Should any provision of this Agreement be held by a court of competent jurisdiction to be unenforceable or invalid for any reason, the remaining provisions of this Agreement shall not be affected by such holding and shall continue in full force and effect.

10.Entire Agreement, Amendment.  This Agreement and the Plan contain the entire agreement between the parties hereto relating to the subject matter hereof and shall not be modified or amended in any way except in a writing signed by all of the parties hereto. All terms which are not defined in this Agreement shall bear the meaning ascribed to such terms in the Plan.  This Agreement is made pursuant to and in accordance with the Plan, and in the event of any conflict or discrepancy between the terms of this Agreement and the terms of the Plan, the terms of the Plan shall have precedence over any conflicting or discrepant terms in this Agreement.

GOLDEN MINERALS COMPANY

By:

Name: 

Title: 

EXECUTIVE

Name: 

3

EX-31.1

EXHIBIT 31.1

CERTIFICATIONS

I, Warren M. Rehn, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Golden Minerals Company;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors:

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:  August 10, 2016

/s/ Warren M. Rehn

Warren M. Rehn

Chief Executive Officer

EX-31.2

EXHIBIT 31.2

I, Robert P. Vogels, certify that:

1.    I have reviewed this quarterly report on Form 10-Q of Golden Minerals Company;

2.    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.    Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.    The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.    Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.    Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.    Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.    Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.    The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors:

a.    All significant deficiencies and material weaknesses in the design or operation of internal controls over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.    Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:  August 10, 2016

/s/ Robert P. Vogels

Robert P. Vogels

Senior Vice President and Chief Financial Officer

EX-32

EXHIBIT 32

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Golden Minerals Company (the “Company”) on Form 10-Q for the quarter ended June 30, 2016 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned hereby certifies, pursuant to 18 U.S.C. §1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/ Warren M. Rehn

Warren M. Rehn

Chief Executive Officer

August 10, 2016

/s/ Robert P. Vogels

Robert P. Vogels

Senior Vice President and Chief Financial Officer

August 10, 2016

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Aug. 10, 2016
Document and Entity Information
Entity Registrant Name	Golden Minerals Co
Entity Central Index Key	0001011509
Document Type	10-Q
Document Period End Date	Jun. 30, 2016
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		88,920,041
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 3,932	$ 4,077
Short-term investments	269	72
Trade receivables	658	546
Inventories	290	330
Value added tax receivable, net	4	400
Prepaid expenses and other assets	448	451
Total current assets	5,601	5,876
Property, plant and equipment, net	9,842	11,125
Total assets	15,443	17,001
Current liabilities
Accounts payable and other accrued liabilities	1,538	1,144
Convertible note payable-related party, net		3,702
Derivative liability-related party		488
Deferred revenue		500
Other current liabilities	229	556
Total current liabilities	1,767	6,390
Asset retirement obligation	2,342	2,546
Warrant liability	2,486	210
Other long term liabilities	76	84
Total liabilities	6,671	9,230
Equity
Common stock, $.01 par value, 200,000,000 and 100,000,000 shares authorized; 88,920,041 and 53,335,333 shares issued and outstanding, respectively	889	534
Additional paid in capital	495,393	484,742
Accumulated deficit	(487,554)	(477,378)
Accumulated other comprehensive income loss	44	(127)
Shareholders' equity	8,772	7,771
Total liabilities and equity	$ 15,443	$ 17,001

XML

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2016	Dec. 31, 2015
CONSOLIDATED BALANCE SHEETS
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	100,000,000
Common stock, shares issued	88,920,041	53,335,333
Common stock, shares outstanding	88,920,041	53,335,333

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenue:
Oxide plant lease		$ 1,576		$ 3,039
Sale of metals			$ 1,961		$ 4,298
Total revenues		1,576	1,961	3,039	4,298
Costs and expenses:
Oxide plant lease costs		(455)		(929)
Costs of metal sold (exclusive of depreciation shown below)			(2,775)		(5,787)
Exploration expense		(1,162)	(1,267)	(1,938)	(2,236)
El Quevar project expense		(210)	(405)	(373)	(811)
Velardena project expense					(119)
Velardena shutdown and care and maintenance costs		(546)		(1,133)
Administrative expense		(1,026)	(1,000)	(2,244)	(2,328)
Stock based compensation		(539)	(94)	(571)	(273)
Reclamation and accretion expense		(46)	(48)	(97)	(158)
Other operating income, net		205	294	244	470
Depreciation, depletion and amortization		(421)	(1,175)	(971)	(2,534)
Total costs and expenses		(4,200)	(6,470)	(8,012)	(13,776)
Loss from operations		(2,624)	(4,509)	(4,973)	(9,478)
Other income and (expense):
Interest expense		(72)		(515)
Interest and other income		32	467	35	1,383
Warrant derivative (loss) gain		(1,096)	218	(2,276)	868
Derivative loss		(130)		(778)
Gain (loss) on debt extinguishment		13		(1,653)
Loss on foreign currency		(38)	(26)	(42)	(54)
Total other expense (income)		(1,291)	659	(5,229)	2,197
Loss from operations before income taxes		(3,915)	(3,850)	(10,202)	(7,281)
Income tax benefit		26		26
Net loss		(3,889)	(3,850)	(10,176)	(7,281)
Other comprehensive loss, net of tax:
Unrealized gain (loss) on securities		89	43	171	(37)
Comprehensive loss		$ (3,800)	$ (3,807)	$ (10,005)	$ (7,318)
Net loss per common share — basic
Loss (in dollars per share)		$ (0.05)	$ (0.07)	$ (0.14)	$ (0.14)
Weighted average common stock outstanding - basic (in shares)	[1]	82,817,778	52,688,552	74,343,257	52,688,552

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

XML

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net cash used in operating activities	$ (3,774)	$ (5,545)
Cash flows from investing activities:
Proceeds from sale of assets	50	301
Capitalized costs and acquisitions of property, plant and equipment	(20)	(44)
Net cash from investing activities	30	257
Cash flows from financing activities:
Proceeds from issuance of common stock, net of issue costs	3,599
Net cash from financing activities	3,599
Net decrease in cash and cash equivalents	(145)	(5,288)
Cash and cash equivalents, beginning of period	4,077	8,579
Cash and cash equivalents, end of period	$ 3,932	$ 3,291

XML

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive income (loss)	Total
Balance at Dec. 31, 2014	$ 532	$ 484,197	$ (451,995)		$ 32,734
Balance (in shares) at Dec. 31, 2014	53,162,833
Increase (Decrease) in Stockholders' Equity
Stock compensation accrued		453			453
KELTIP mark-to-market		40			40
KELTIP shares issued	$ 2	52			54
KELTIP shares issued (in shares)	172,500
Unrealized loss on marketable equity securities, net of tax				$ (127)	(127)
Net loss			(25,383)		(25,383)
Balance at Dec. 31, 2015	$ 534	484,742	(477,378)	(127)	7,771
Balance (in shares) at Dec. 31, 2015	53,335,333
Increase (Decrease) in Stockholders' Equity
Stock compensation accrued	$ 1	189			190
Stock compensation accrued (in shares)	217,968
Shares issued on conversion of Sentient Note	$ 274	6,943			7,217
Shares issued on conversion of Sentient Note (in shares)	27,366,740
Registered offering common stock, net and warrants	$ 80	3,519			3,599
Common stock issued (in shares)	8,000,000
Unrealized loss on marketable equity securities, net of tax				171	171
Net loss			(10,176)		(10,176)
Balance at Jun. 30, 2016	$ 889	$ 495,393	$ (487,554)	$ 44	$ 8,772
Balance (in shares) at Jun. 30, 2016	88,920,041

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Basis of Preparation of Financial Statements and Nature of Operations

6 Months Ended

Jun. 30, 2016

Basis of Preparation of Financial Statements and Nature of Operations

Basis of Preparation of Financial Statements and Nature of Operations

1.     Basis of Preparation of Financial Statements and Nature of Operations

Golden Minerals Company (the “Company”), a Delaware corporation, has prepared these unaudited interim condensed consolidated financial statements in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). Such rules and regulations allow the omission of certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“GAAP”), so long as such omissions do not render the financial statements misleading.  The year-end balance sheet data was derived from audited financial statements, but does not include all disclosures normally required by GAAP.

In the opinion of management, these financial statements reflect all adjustments that are necessary for a fair presentation of the financial results for the periods presented. These interim financial statements should be read in conjunction with the annual financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2015, and filed with the SEC on February 25, 2016.

The Company is a mining company, holding a 100% interest in the Velardeña and Chicago precious metals mining properties and associated oxide and sulfide processing plants in Mexico (the “Velardeña Properties”).  During November 2015 the Company suspended mining and sulfide processing activities at its Velardeña Properties in order to conserve the asset until the Company is able to develop mining and processing plans that at then current prices for silver and gold indicate a sustainable positive operating margin (defined as revenues less costs of sales) or the Company is able to locate, acquire and develop alternative mineral sources that could be economically mined and transported to the Velardeña Properties for processing.  The Company has placed the mine and sulfide processing plant on care and maintenance to enable a re-start of either the mine or mill when mining and processing plans and metals prices support a cash positive outlook.  The Company incurred approximately $1.2 million in related costs for employee severance, net working capital obligations, and other shutdown expenditures to place the property on care and maintenance in the fourth quarter 2015 and $1.1 million in shutdown and care and maintenance costs for the six months ended June 30, 2016 and expects to incur approximately $0.3 million in quarterly holding costs while mining and processing remain suspended.  The Company has retained a core group of employees, most of whom have been assigned to operate the oxide plant, which is leased to a third party and not affected by the shutdown.  The oxide plant began processing material for the third party in mid-December 2015, and the Company expects to receive net cash flow under the lease of approximately $4.5 million in 2016.  The retained employees also include an exploration group and an operations and administrative group to continue to advance the Company’s plans in Mexico, oversee corporate compliance activities, and to maintain and safeguard the longer term value of the Velardeña assets.

The Company remains focused on evaluating and searching for mining opportunities in North America (including Mexico) with near term prospects of mining, and particularly for properties within reasonable haulage distances of our Velardeña Properties. The Company is also reviewing strategic opportunities, focusing primarily on development or operating properties in North America, including Mexico. The Company is continuing its exploration efforts on selected properties in its portfolio of approximately 10 exploration properties located primarily in Mexico. It continues to hold its El Quevar advanced exploration property in Argentina on care and maintenance until it can find a partner to further advance the project.

The Company is considered an exploration stage company under the criteria set forth by the SEC as the Company has not yet demonstrated the existence of proven or probable mineral reserves, as defined by SEC Industry Guide 7, at the Velardeña Properties, or any of the Company’s other properties.  As a result, and in accordance with GAAP for exploration stage companies, all expenditures for exploration and evaluation of the Company’s properties are expensed as incurred. As such the Company’s financial statements may not be comparable to the financial statements of mining companies that do have proven and probable mineral reserves.  Such companies would typically capitalize certain development costs including infrastructure development and mining activities to access the ore. The capitalized costs would be amortized on a units-of-production basis as reserves are mined.  The amortized costs are typically allocated to inventory and eventually to cost of sales as the inventories are sold.  As the Company does not have proven and probable reserves, substantially all expenditures at the Company’s Velardeña Properties for mine construction activity, as well as costs associated with the mill facilities, and for items that do not have a readily identifiable market value apart from the mineralized material, have been expensed as incurred. Such costs are charged to cost of metals sold or project expense during the period depending on the nature of the costs. Certain of the costs may be reflected in inventories prior to the sale of the product. The term “mineralized material” as used herein, although permissible under SEC Industry Guide 7, does not indicate “reserves” by SEC standards. The Company cannot be certain that any deposits at the Velardeña Properties or any other exploration property will ever be confirmed or converted into SEC Industry Guide 7 compliant “reserves”.

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Liquidity, Capital Resources and Going Concern

6 Months Ended

Jun. 30, 2016

Liquidity, Capital Resources and Going Concern

Liquidity, Capital Resources and Going Concern

2.     Liquidity, Capital Resources and Going Concern

At June 30, 2016 the Company’s aggregate cash and cash equivalents totaled $3.9 million, $0.2 million lower than the $4.1 million in similar assets held at December 31, 2015. The reduction is due primarily to $1.1  million in shutdown and care and maintenance costs at the Velardeña Properties, $1.9 million in exploration expenditures, including costs related to drilling at the San Luis del Cordero, Santa Maria, and Rodeo properties, $0.4 million in care and maintenance and property holding costs at the El Quevar project, $2.2 million in general and administrative expenses, $0.5 million from an increase in working capital primarily related to a decrease in deferred revenue from the lease of the oxide plant, offset in part by $0.2 million of net proceeds from the sale of nonstrategic exploration properties, $2.1 million of net operating margin received pursuant to the lease (defined as oxide plant lease revenue less oxide plant lease costs) and $3.6 million of net proceeds received in a registered direct offering of the Company’s common stock as discussed below.

On February 11, 2016, The Sentient Group (“Sentient”) converted approximately $3.9 million of principal and $0.1 million of accrued interest (representing the total amount of accrued interest at the conversion date) pursuant to the Sentient Note (defined below) into 23,355,000 shares of the Company’s common stock. See Note 11 for a full discussion of the Sentient Note. On June 10, 2016 Sentient converted the remaining approximately $1.1 million and approximately $34,000 of accrued interest under the Sentient Note into 4,011,740 shares of the Company’s common stock.  At June 30, 2016 the Company had no outstanding debt.

On May 6, 2016, the Company issued 8.0 million registered shares of common stock at a purchase price of $0.50 per share in a registered direct offering (the “Offering”) resulting in gross proceeds of $4.0 million. The Company incurred costs and fees of approximately $0.4 million related to the Offering resulting in net proceeds of approximately $3.6 million.  In connection with the Offering, for each share of common stock purchased by an investor, such investor received an unregistered warrant to purchase three‐quarters of a share of common stock. The warrants have an exercise price of $0.75 per share and are exercisable six months after the date of issuance and will expire five years from the initial exercise date (see Note 15).

The Company currently expects that it will have sufficient cash to continue its business plan into 2017 without external funding.  In addition to its $3.9 million cash balance at June 30, 2016, the Company expects to receive approximately $2.4 million in net operating margin from the lease of the oxide plant in the remaining two quarters of 2016 and has received $0.6 million from the sale of non-strategic exploration properties in the third quarter. The Company currently plans to spend approximately $3.9 million in the remaining two quarters of 2016, as detailed below, resulting in a projected cash balance at the end of 2016 of approximately $3.0 million.

· Approximately $0.7 million at the Velardeña Properties for care and maintenance;

· Approximately $1.1 million on exploration activities and property holding costs related to the Company’s portfolio of exploration properties located primarily in Mexico, including project assessment and development costs relating to Santa Maria, Rodeo, and other properties;

· Approximately $0.3 million at the El Quevar project to fund ongoing maintenance activities, property holding costs, and continuing  project evaluation costs;

· Approximately $1.4 million on general and administrative costs; and

· Approximately $0.4 million on an increase in working capital primarily related to a reduction in current liabilities involving the payment of equity taxes in a foreign jurisdiction.

The actual amount that the Company spends during the remainder of 2016 and the projected yearend cash balance may vary significantly from the amounts specified above and will depend on a number of factors, including variations from anticipated care and maintenance costs at the Velardeña Properties and costs for continued exploration, project assessment, and development at the Company’s other exploration properties, including Santa Maria and Rodeo.

The consolidated financial statements have been prepared on a going concern basis under which an entity is considered to be able to realize its assets and satisfy its liabilities in the normal course of business.  However, the continuing operations of the Company are dependent upon its ability to secure sufficient funding and to generate future profitable operations.  The underlying value and recoverability of the amounts shown as property, plant and equipment in Note 8 are dependent on the ability of the Company to generate positive cash flows from operations and to continue to fund exploration and development activities that would lead to profitable mining activities or to generate proceeds from the disposition of property, plant and equipment.  There can be no assurance that the Company will be successful in generating future profitable operations or securing additional funding in the future on terms acceptable to the Company or at all.

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New Accounting Pronouncements

6 Months Ended

Jun. 30, 2016

New Accounting Pronouncements

New Accounting Pronouncements

3.     New Accounting Pronouncements

In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09, “Compensation—Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting” (“ASU 2016-09”), which simplifies several aspects of the accounting for share-based payment award transactions including accounting for income taxes and classification of excess tax benefits on the statement of cash flows, forfeitures and minimum statutory tax withholding requirements.  For the Company, ASU 2016-09 is effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted for any interim or annual period. The adoption of this update is not expected to have a material impact on the Company’s consolidated financial position or results of operations.

In March 2016, the FASB issued ASU 2016-08,  “Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)” (“ASU 2016-08”), which clarifies principal versus agent when another party, along with the entity, is involved in providing a good or service to a customer. Topic 606, Revenue from Contracts with Customers, requires an entity to determine whether the nature of its promise is to provide that good or service to the customer (i.e., the entity is a principal) or to arrange for the good or service to be provided to the customer by the other party (i.e., the entity is an agent). For the Company, ASU 2016-08 is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The adoption of this update is not expected to have a material impact on the Company’s consolidated financial position or results of operations.

In January 2016, the FASB issued ASU No. 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities” (“ASU 2016-01”), which amended its standards related to the accounting of certain financial instruments. This amendment addresses certain aspects of recognition, measurement, presentation and disclosure. The new rules will become effective for annual and interim periods beginning after December 15, 2017. Early adoption is not permitted. We are in the process of evaluating the impact the amendment will have on our consolidated financial position or results of operations.

On August 27, 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements - Going Concern (Subtopic 205-40), Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern” (“ASU 2014-15”).  ASU 2014-15 will require management to evaluate whether there are conditions and events that raise substantial doubt about the Company’s ability to continue as a going concern within one year after the financial statements are issued on both an interim and annual basis. Management will be required to provide certain footnote disclosures if it concludes that substantial doubt exists or when its plans alleviate substantial doubt about the Company’s ability to continue as a going concern. ASU 2014-15 becomes effective for annual periods beginning in 2016 and for interim reporting periods starting in the first quarter of 2017. The Company does not expect the adoption of this update to have a material impact on its consolidated financial position or results of operations.

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Cash and Cash Equivalents and Short-Term Investments

6 Months Ended

Jun. 30, 2016

Cash and Cash Equivalents and Short-Term Investments

Cash and Cash Equivalents and Short-Term Investments

4.     Cash and Cash Equivalents and Short-term Investments

The Company considers all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents. Short-term investments include investments with maturities greater than three months, but not exceeding 12 months, or highly liquid investments with maturities greater than 12 months that the Company intends to liquidate during the next 12 months for working capital needs.

The Company determines the appropriate classification of its investments in equity securities at the time of acquisition and re-evaluates those classifications at each balance sheet date.  Available for sale investments are marked to market at each reporting period with changes in fair value recorded as a component of other comprehensive income (loss). If declines in fair value are deemed other than temporary, a charge is made to net income (loss) for the period.

The following tables summarize the Company’s short-term investments at June 30, 2016 and December 31, 2015:

			Estimated		Carrying
June 30, 2016	Cost		Fair Value		Value
		(inthousands)
Investments:
Short-term:
Available for sale common stock	$	199	$	269	$	269
Total available for sale		199		269		269
Total short term	$	199	$	269	$	269
December 31, 2015
Investments:
Short-term:
Available for sale common stock	$	199	$	72	$	72
Total available for sale		199		72		72
Total short term	$	199	$	72	$	72

The available for sale common stock consists of 5,000,000 shares of a junior mining company received during the first quarter 2015 in a transaction involving the Company’s 50% interest in the San Diego exploration property in Mexico.  The Company received shares in the junior mining company that holds the other 50% interest in the property in exchange for extending by two years from March 24, 2015 the period of time in which the junior mining company can earn an additional 10% interest in the property by completing an additional $0.8 million of exploration work.  Following the receipt of the shares the Company owns approximately 9% of the outstanding shares of the junior mining company.  The extension agreement was executed on March 23, 2015 and the value of shares on that date was recorded by the Company as a short-term investment using quoted market prices.  See Note 13 for further discussion on the fair value measurement techniques used by the Company to value the above investments.

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Prepaid Expenses and Other Assets

6 Months Ended

Jun. 30, 2016

Prepaid Expenses and Other Assets

Prepaid Expenses and Other Assets

5.     Prepaid Expenses and Other Assets

Prepaid expenses and other current assets consist of the following:

	June 30,			December 31,
	2016			2015
	(in thousands)
Prepaid insurance	$	294	$	302
Prepaid contractor fees and vendor advances		24		12
Recoupable deposits and other		130		137
	$	448	$	451

The prepaid contractor fees and vendor advances consist of advance payments made to contractors and suppliers primarily at the Company’s Velardeña Properties in Mexico.

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Inventories

6 Months Ended

Jun. 30, 2016

Inventories

Inventories

6.     Inventories

Inventories at the Velardeña Properties at June 30, 2016 and December 31, 2015 consist of the following:

	June 30,		December 31,
	2016		2015
	(in thousands)
Material and supplies	$	290	$	330
	$	290	$	330

The Company had no metals or in process inventories at June 30, 2016 or December 31, 2015 as the result of the suspension of mining and processing at the Velardeña Properties (see Note 1). The material and supplies inventory at June 30, 2016 and December 31, 2015 is reduced by a $0.2 million and $0.3 million obsolescence charge respectively.

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Value Added Tax Receivable, Net

6 Months Ended

Jun. 30, 2016

Value added tax receivable, net

Value added tax receivable

7.Value Added Tax Receivable, Net

Mexico law allows for certain VAT payments to be recovered through ongoing applications for refunds. The Company expects that the current amounts will be recovered within a one year period.  At June 30, 2016 the Company has also recorded approximately $49,000 of VAT receivable as a reduction to VAT taxes payable in Mexico, which appears in Accounts payable and other accrued liabilities on the Condensed Consolidated Balance Sheets.

The Company has also paid VAT in Mexico as well as other countries, primarily related to exploration projects, which has been charged to expense as incurred because of the uncertainty of recoverability.

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Property, Plant and Equipment, Net

6 Months Ended

Jun. 30, 2016

Property, Plant and Equipment

Property, Plant and Equipment

8.Property, Plant and Equipment, Net

The components of property, plant and equipment are as follows:

	June 30,		December 31,
	2016		2015
	(in thousands)
Mineral properties	$	9,614	$	9,630
Exploration properties		2,518		2,518
Royalty properties		200		200
Buildings		4,381		4,377
Mining equipment and machinery		16,868		16,998
Other furniture and equipment		842		841
Asset retirement cost		992		1,285
		35,415		35,849
Less: Accumulated depreciation and amortization		(25,573)		(24,724)
	$	9,842	$	11,125

The asset retirement cost (“ARC”) is all related to the Company’s Velardeña Properties. The decrease in the ARC during the period is related to an adjustment to the asset retirement obligation (“ARO”), as discussed below in Note 10.

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Accounts Payable and Other Accrued Liabilities

6 Months Ended

Jun. 30, 2016

Accounts Payable and Other Accrued Liabilities

Accounts Payable and Other Accrued Liabilities

9.     Accounts Payable and Other Accrued Liabilities

The Company’s accounts payable and other accrued liabilities consist of the following:

	June 30,		December 31,
	2016		2015
	(in thousands)
Accounts payable and accruals	$	668	$	599
Accrued employee compensation and benefits		870		545
	$	1,538	$	1,144

June 30, 2016

Accounts payable and accruals at June 30, 2016 are primarily related to amounts due to contractors and suppliers in the amounts of $0.4 million and $0.3 million related to the Company’s Velardeña Properties and corporate administrative activities, respectively.  In the case of the Velardeña Properties, amounts due also include a net VAT payable of approximately $50,000.

Accrued employee compensation and benefits at June 30, 2016 consist of $0.2 million of accrued vacation payable and $0.7 million related to withholding taxes and benefits payable, of which $0.3 million is related to activities at the Velardeña Properties.

December 31, 2015

Accounts payable and accruals at December 31, 2015 consist primarily of $0.3 million due to contractors and suppliers and $0.3 million related to the Company’s Velardeña Properties and corporate administrative activities, respectively.  In the case of the Velardeña Properties, amounts due also include a VAT payable that is not an offset to the VAT receivable.

Accrued employee compensation and benefits at December 31, 2015 consist of $0.1 million of accrued vacation payable and $0.4 million related to withholding taxes and benefits payable, of which $0.2 million is related to activities at the Velardeña Properties.

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Asset Retirement Obligation and Reclamation Liabilities

6 Months Ended

Jun. 30, 2016

Asset Retirement Obligation and Reclamation Liabilities

Asset Retirement Obligation and Reclamation Liabilities

10.     Asset Retirement Obligation and Reclamation Liabilities

The Company retained the services of a mining engineering firm to prepare a detailed closure plan for the Velardeña Properties. The plan was completed during the second quarter 2012 and indicated that the Company had an ARO and offsetting ARC of approximately $1.9 million. The estimated $3.5 million ARO and ARC that was recorded at the time of the acquisition of the Velardeña Properties was adjusted accordingly.

The Company will continue to accrue additional estimated ARO amounts based on an asset retirement plan as activities requiring future reclamation and remediation occur.  During the first six months of 2016 the Company recognized approximately $0.1 million of accretion expense and approximately $20,000 of amortization expense related to the ARC.

The following table summarizes activity in the Velardeña Properties ARO:

	Six Months Ended
	June 30,
	2016		2015
	(in thousands)
Beginning balance	$	2,480	$	2,582
Changes in estimates, and other		(293)		(300)
Accretion expense		97		100
Ending balance	$	2,284	$	2,382

The decreases in the ARO recorded during the 2016 and 2015 periods are the result of changes in assumptions related to inflation factors and the timing of future expenditures used in the determination of future cash flows.

The ARO set forth on the accompanying Condensed Consolidated Balance Sheets at June 30, 2016 and December 31, 2015 includes approximately $0.1 million of reclamation liabilities related to activities at the El Quevar project in Argentina.

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Convertible Note Payable – Related Party, Net

6 Months Ended

Jun. 30, 2016

Convertible Note Payable – Related Party, Net

Convertible Note Payable – Related Party, Net

11.     Convertible Note Payable – Related Party, Net

On October 27, 2015, the Company borrowed $5.0 million from Sentient, pursuant to the terms of a Senior Secured Convertible Note (“the Sentient Note”) and a related loan agreement (the "Sentient Loan"), with principal and accrued interest due on October 27, 2016. To comply with security regulations and stock exchange rules in the United States and Canada, the Company received stockholder approval on January 19, 2016 to allow the Sentient Note principal and accrued interest to be converted, solely at Sentient's option, into shares of the Company's common stock at a price equal to the lowest of: 1) $0.29,  90 percent of the 15-day volume weighted average price ("VWAP") for the period immediately preceding the Loan closing date, 2) 90 percent of the 15-day VWAP for the period immediately preceding the loan conversion date, or 3) an anti-dilution adjusted price based on the lowest price for which the Company has sold its stock following the loan closing date. The loan bears interest at a rate of 9.0% per annum, compounded monthly.

The beneficial conversion feature of the Sentient Note represents an embedded derivative as defined by ASC 815 "Derivatives and Hedging" ("ASC 815"). ASC 815 provides that a derivative instrument's fair value must be bifurcated from the note and separately recorded on the Company's Consolidated Balance Sheet.  The Company used a third party consultant to value the embedded derivative in the Sentient Note employing a Monte Carlo type probability analysis, which falls within Level 3 of the fair value hierarchy (see Note 13). For purposes of valuing the embedded derivative as of the Sentient Loan closing date, at December 31, 2015, at February 11, 2016 (first partial conversion date), and at June 10, 2016 (the remaining conversion date), the valuation model takes into account, among other items: 1) the probability of successfully achieving stockholder approval of the Sentient Note’s conversion feature, 2) future variations in the Company’s stock price, and 3) the probability of entering into an equity transaction prior to the Sentient Loan maturity date that would lower the conversion price.  It was determined that the embedded derivative had a fair value of approximately $1.1 million at October 27, 2015, the date the Company entered into the Sentient Loan.  Subsequent mark-to-market changes in the value of the derivative are recorded as income or loss in the Consolidated Statements of Operations and Comprehensive Loss.  The Sentient Note was recorded net of the bifurcated embedded derivative at October 27, 2015 with the $1.1 million difference between the face value and the recorded value of the note representing a loan discount that is being amortized to interest expense over the life of the loan using the interest rate method. 

The Company also incurred approximately $0.3 million in legal and other costs associated with the Sentient Loan. Per the guidance of ASU 2015-03 "Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs" (“ASU 2015-03”), the loan costs are presented as a reduction to the note payable on the accompanying Consolidated Balance Sheets and will be amortized to interest expense over the life of the Sentient Note using the interest rate method.

Because the Sentient Loan has been recorded net of the bifurcated embedded derivative and loan costs, both of which will be amortized to interest expense over the life of the loan, the effective rate of interest on the recorded loan obligation is higher than the stated nominal rate of interest. The effective interest rate on the Sentient Note is approximately 36%, compounded monthly, compared to the stated nominal rate of 9% per annum, compounded monthly.

On February 11, 2016, Sentient converted approximately $3.9 million of principal and $0.1 million of accrued interest (representing the total amount of accrued interest at the conversion date) on the Sentient Note into 23,355,000 shares of the Company's common stock at an exercise price of approximately $0.172 per share, equal to 90% of the 15-day VWAP immediately preceding the conversion date. On June 10, 2016, Sentient converted the remaining approximately $1.1 million of principal and approximately $34,000 of accrued interest (representing the total amount of accrued interest at the conversion date) pursuant to the Sentient Note into 4,011,740 shares of the Company's common stock at an exercise price of approximately $0.289 per share, equal to 90% of the 15‐day VWAP immediately preceding the loan’s original issue date. 

The Company adjusted the recorded value of the Sentient Loan as of the conversion dates to reflect the amortization of the loan discount and loan costs, shown as interest expense in the Consolidated Statements of Operations and Comprehensive Loss. For the six months ended June 30, 2016, the Company has recorded a total noncash loss on debt extinguishment of $1.7 million reflecting the difference between the value of the shares issued to Sentient as a result of the two separate conversions and the recorded value of the Sentient Loan, including related loan costs, loan discount and embedded derivative eliminated at the conversion dates. The Company marked-to-market the embedded derivative at each of the conversion dates and at the end of the first quarter ended March 31, 2016 and recorded a total derivative loss of $0.8 million for the six months ended June 30, 2016 in the Consolidated Statements of Operations and Comprehensive Loss.

At June 30, 2016 the Sentient Note had been fully converted and the Company had no outstanding debt.

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Other Liabilities

6 Months Ended

Jun. 30, 2016

Other Liabilities

Other Liabilities

12.     Other Liabilities

The Company recorded other current liabilities of approximately $0.2 million and $0.6million at June 30, 2016 and December 31, 2015, respectively.  The June 30, 2016 and December 31, 2015 amounts include a net liability of approximately $0.2 million and $0.4 million respectively related to the Argentina tax on equity due for years 2009 through 2012 stemming from a tax audit of those years.  For June 30, 2016 the total $0.2 million amount payable consists of estimated interest and penalties.  The Company is awaiting the final assessment of interest and penalties, estimated not to exceed the $0.2 million accrual, payable immediately upon final assessment. The final assessment is expected during the third quarter 2016.  The December 31, 2015 amount also includes $0.1 million of accrued interest on the Sentient Loan and $0.1 million as a loss contingency on a disputed contract with a third party contractor in Mexico.  The dispute was settled during the first quarter 2016 for the amount previously accrued.

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Fair Value Measurements

6 Months Ended

Jun. 30, 2016

Fair Value Measurements

Fair Value Measurements

13.     Fair Value Measurements

Financial assets and liabilities and nonfinancial assets and liabilities are measured at fair value under a framework of a fair value hierarchy which prioritizes the inputs into valuation techniques used to measure fair value into three broad levels.  This hierarchy gives the highest priority to quoted prices (unadjusted) in active markets and the lowest priority to unobservable inputs.  Further, financial assets and liabilities should be classified by level in their entirety based upon the lowest level of input that was significant to the fair value measurement.  The three levels of the fair value hierarchy per ASC 820 are as follows:

Level 1:  Unadjusted quoted market prices in active markets for identical assets or liabilities that are accessible at the measurement date.

Level 2:  Quoted prices in inactive markets for identical assets or liabilities, quoted prices for similar assets or liabilities in active markets, or other observable inputs either directly related to the asset or liability or derived principally from corroborated observable market data.

Level 3:  Unobservable inputs due to the fact that there is little or no market activity. This entails using assumptions in models which estimate what market participants would use in pricing the asset or liability.

The following table summarizes the Company’s financial assets and liabilities at fair value on a recurring basis at June 30, 2016 and December 31, 2015, by respective level of the fair value hierarchy:

	Level 1		Level 2		Level 3		Total
	(in thousands)
At June 30, 2016
Assets:
Cash and cash equivalents	$	3,932	$	—	$	—	$	3,932
Trade accounts receivable		658		—		—		658
Short-term investments		269		—		—		269
	$	4,859	$	—	$	—	$	4,859
Liabilities:
Warrant liability	$	—	$	—	$	2,486	$	2,486
	$	—	$	—	$	2,486	$	2,486
At December 31, 2015
Assets:
Cash and cash equivalents	$	4,077	$	—	$	—	$	4,077
Trade accounts receivable		546		—		—		546
Short-term investments		72		—		—		72
	$	4,695	$	—	$	—	$	4,695
Liabilities:
Warrant liability	$	—	$	—	$	210	$	210
Derivative liability		—		—		488		488
	$	—	$	—	$	698	$	698

The Company’s cash equivalents, comprised principally of U.S. treasury securities, are classified within Level 1 of the fair value hierarchy.

The Company’s trade accounts receivable are classified within Level 1 of the fair value hierarchy, are related to the sale of metals at our Velardeña Properties and the oxide plant lease and are valued at published metals prices per the terms of the refining and smelting agreements and lease rates per the plant lease agreement.

At June 30, 2016 and December 31, 2015, the Company recorded a liability for warrants to acquire the Company’s stock as a result of anti-dilution clauses in the warrant agreements that could result in a resetting of the warrant exercise price in the event the Company were to issue additional shares of its common stock in a future transaction at a price lower than the current exercise price of the warrants (see Note 15). The Company assesses the fair value of its warrant liability at the end of each reporting period, with changes in the value recorded as a separate line item on the Company’s Condensed Consolidated Statements of Operations and Comprehensive Loss. The valuation policies are approved by the Chief Financial Officer who reviews and approves the inputs used in the fair value calculations and the changes in fair value measurements from period to period for reasonableness. Fair value measurements are discussed with the Company’s Chief Executive Officer, as deemed appropriate.  The warrant liability has been recorded at fair value as of June 30, 2016 and December 31, 2015 based primarily on a valuation performed by a third party expert using a Monte Carlo simulation, which falls within Level 3 of the fair value hierarchy.  The valuation model takes into account the probability that the Company could issue additional shares in a future transaction at a lower price than the current exercise price of the warrants.

The beneficial conversion feature of the Sentient Note represents an embedded derivative as defined by ASC 815 (see Note 11). ASC 815 provides that a derivative instrument’s fair value must be bifurcated from the host contract and separately recorded on the Company’s Consolidated Balance Sheets.  At December 31, 2015, March 31 2016, and at each of the conversion dates (see Note 11) the Company had recorded a derivative liability related to the beneficial conversion feature of the Sentient Note.  On June 10, 2016, the remaining Sentient Note and related embedded derivative had been fully retired.  The Company assesses the fair value of the derivative liability at the end of each reporting period, with changes in the value recorded as a separate line item on the Company’s Condensed Consolidated Statements of Operations and Comprehensive Loss. The valuation policies are approved by the Chief Financial Officer who reviews and approves the inputs used in the fair value calculations and the changes in fair value measurements from period to period for reasonableness. Fair value measurements are discussed with the Company’s Chief Executive Officer, as deemed appropriate. The derivative liability was recorded at fair value at December 31, 2015, March 31, 2016, and each of the conversion dates based primarily on a valuation performed by a third party expert using a Monte Carlo simulation, which falls within Level 3 of the fair value hierarchy. The valuation model takes into account, among other items: 1) the probability of successfully achieving stockholder approval of the loan’s conversion feature, 2) future variations in the Company’s stock price, and 3) the probability of entering into an equity transaction prior to the Loan maturity date that would lower the conversion price.

In addition to the warrant exercise prices (see Note 15) and Sentient Note conversion price (see Note 11) other significant inputs to the warrant valuation model and derivative valuation model included the following as applicable:

	June 30,		December 31,
	2016		2015
Company's ending stock price	$	0.65	$	0.20
Company's stock volatility		105%		85%
Applicable risk free interest rate		0.74%		1.48%

An increase or decrease in the Company’s stock price, in isolation, would result in a relatively lower or higher fair value measurement respectively.  A decrease in the probability of the issuance of additional common stock at a lower price than the current warrant exercise price would result in a lower value for the warrants.  The table below highlights the change in fair value of the warrant and derivative liabilities.

	Fair Value Measurements
	Using Significant Unobservable
	Inputs (Level 3)
	Warrant Liabilities		Derivative  Liability
	(in thousands)
Ending balance at December 31, 2015	$	210	$	488
Conversion of Sentient Loan (see Note 11)		—		(488)
Change in estimated fair value		2,276		—
Ending balance at June 30, 2016	$	2,486	$	—

Non-recurring Fair Value Measurements

There were no non-recurring fair value measurements at June 30, 2016.

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Income Taxes

6 Months Ended

Jun. 30, 2016

Income Taxes

Income Taxes

14.     Income Taxes

The Company accounts for income taxes in accordance with the provisions of ASC 740, “Income Taxes” (“ASC 740”), on a tax jurisdictional basis.  For the six months ended June 30, 2016 the Company recognized an income tax benefit of $26,000 related to the partial removal of a valuation allowance on net operating losses resulting from an unrealized gain on held for sale investments reported in other comprehensive income in the Condensed Consolidated Statements of Operations and Comprehensive Loss and treated as a source of taxable income.  The Company operates in jurisdictions that have generated ordinary losses on a year-to-date basis. However, the Company is unable to recognize a benefit for those losses, except as described in this paragraph, thus an estimated effective tax rate has not been used to report the year-to-date results.   

In accordance with ASC 740, the Company presents deferred tax assets net of its deferred tax liabilities on a tax jurisdictional basis on its Condensed Consolidated Balance Sheets.  As of June 30, 2016 and as of December 31, 2015, the Company had no net deferred tax assets or net deferred tax liabilities reported on its balance sheet.   

The Company, a Delaware corporation, and its subsidiaries file tax returns in the United States and in various foreign jurisdictions.  The tax rules and regulations in these countries are highly complex and subject to interpretation. The Company’s income tax returns are subject to examination by the relevant taxing authorities and in connection with such examinations, disputes can arise with the taxing authorities over the interpretation or application of certain tax rules within the country involved.  In accordance with ASC 740, the Company identifies and evaluates uncertain tax positions, and recognizes the impact of uncertain tax positions for which there is less than a more-likely-than-not probability of the position being upheld upon review by the relevant taxing authority.  Such positions are deemed to be “unrecognized tax benefits” which require additional disclosure and recognition of a liability within the financial statements.  The Company had no unrecognized tax benefits at June 30, 2016 or December 31, 2015.

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Equity

6 Months Ended

Jun. 30, 2016

Equity

Equity

15.     Equity

Offering and Private Placement

On May 6, 2016, the Company issued 8.0 million registered shares of common stock at a purchase price of $0.50 per share in a registered direct offering (the “Offering”) resulting in gross proceeds of $4.0 million. The Company incurred costs and fees of approximately $0.4 million related to the Offering, resulting in net proceeds of approximately $3.6 million.  In connection with the Offering, for each share of common stock purchased by an investor, such investor received an unregistered warrant to purchase three‐quarters of a share of common stock. The 6,000,000 warrants have an exercise price of $0.75 per share and are exercisable six months after the date of issuance and will expire five years from the initial exercise date. 

The net proceeds of the Offering were recorded in equity and appear as a separate line item in the Condensed Consolidated Statements of Changes in Equity.  Using the Black Scholes model, the fair value of the warrants issued was $3.6 million, considering the closing stock price on April 29, 2016 (the first business day preceding May 2, 2016, the date the Company entered into a definitive agreement to issue the shares), the exercise price and exercise period of the warrants, the Company’s volatility rate of 105%, and the applicable risk free rate of 0.74%. 

Sentient Note conversion

On February 11, 2016, Sentient converted approximately $3.9 million of principal and $0.1 million of accrued interest (representing the total amount of accrued interest at the conversion date) pursuant to the Sentient Note into 23,355,000 shares of the Company's common stock at an exercise price of approximately $0.172 per share, reflecting 90% of the 15-day VWAP immediately preceding the conversion date. On June 10, 2016, Sentient converted the remaining approximately $1.1 million of principal and approximately $34,000 of accrued interest (representing the total amount of accrued interest at the conversion date) pursuant to the Sentient Note into 4,011,740 shares of the Company's common stock at an exercise price of approximately $0.289 per share, equal to 90% of the 15‐day VWAP immediately preceding the loan’s original issue date (see Note 11).  At June 30, 2016 the Sentient Note had been fully converted and the Company had no further debt outstanding. After conversion, Sentient holds approximately 47% of the Company’s 88.9 million shares of issued and outstanding common stock.

Equity Incentive Plans

In May 2014, the Company’s stockholders approved amendments to the Company’s 2009 Equity Incentive Plan, adopting the Amended and Restated 2009 Equity Incentive Plan (the “Equity Plan”) pursuant to which awards of the Company’s common stock may be made to officers, directors, employees, consultants and agents of the Company and its subsidiaries.  The Company recognizes stock-based compensation costs using a graded vesting attribution method whereby costs are recognized over the requisite service period for each separately vesting portion of the award.

The following table summarizes the status of the Company’s restricted stock grants issued under the Equity Plan at June 30, 2016 and the changes during the six months then ended:

		Weighted
		Average Grant
		Date Fair
	Number of	Value Per
Restricted Stock Grants	Shares	Share
Outstanding at December 31, 2015	84,170	$	0.46
Granted during the period	—		—
Restrictions lifted during the period	(836)		2.89
Forfeited during the period	—		—
Outstanding at June 30, 2016	83,334	$	0.44

Restrictions were lifted on 834 shares during the six months ended June 30, 2016 according to the terms of grants made to an employee in prior years. 

For the six months ended June 30, 2016 the Company recognized approximately $3,000 of compensation expense related to the restricted stock grants.  The Company expects to recognize additional compensation expense related to these awards of approximately $3,000 over the next six months.

In addition to the restricted stock grants in the table above on May 19, 2016, the Company granted a consultant 50,000 shares of fully vested stock. The Company recognized stock compensation expense of $21,000 related to the grant.

The following table summarizes the status of the Company’s stock option grants issued under the Equity Plan at June 30, 2016 and the changes during the six months then ended:

		Weighted
		Average
		Exercise
	Number of	Price Per
Equity Plan Options	Shares	Share
Outstanding at December 31, 2015	245,810	$	3.47
Granted during the period	—		—
Restrictions lifted during the year	—		—
Forfeited or expired  during period	(150,000)	$	0.56
Exercised during period	—		—
Outstanding at June 30, 2016	95,810	$	8.02
Exercisable at end of period	95,810	$	8.02
Granted and vested	95,810	$	8.02

Also, pursuant to the Equity Plan, the Company’s Board of Directors adopted the Non-Employee Director’s Deferred Compensation and Equity Award Plan (the “Deferred Compensation Plan”).  Pursuant to the Deferred Compensation Plan the non-employee directors receive a portion of their compensation in the form of Restricted Stock Units (“RSUs”) issued under the Equity Plan. The RSUs vest on the first anniversary of the grant and each vested RSU entitles the director to receive one unrestricted share of common stock upon the termination of the director’s board service.

The following table summarizes the status of the RSU grants issued under the Deferred Compensation Plan at June 30, 2016 and the changes during the six months then ended:

		Weighted
		Average Grant
	Number of	Date Fair
	Underlying	ValuePer
Restricted Stock Units	Shares	Share
Outstanding at December 31, 2015	1,245,285	$	1.66
Granted during the period	530,000		0.42
Restrictions lifted during the period	(167,968)		1.40
Forfeited during the period	—		—
Outstanding at June 30, 2016	1,607,317	$	1.28

Included in the RSUs granted during the period are 250,000 RSUs granted to the Chairman of the Board that vested immediately.  The restrictions lifted during the period relate to a director who retired during the period.

For the six months ended June 30, 2016 the Company recognized approximately $0.2 million of compensation expense related to the RSU grants.  The Company expects to recognize additional compensation expense related to the RSU grants of approximately $0.1 million over the next 11 months.

Key Employee Long-Term Incentive Plan

In December 2013, the Board of Directors of the Company approved and the Company adopted the 2013 Key Employee Long-Term Incentive Plan (the “KELTIP”), which became effective immediately. The KELTIP provides for the grant of units (“KELTIP Units”) to certain officers and key employees of the Company, which units will, once vested, entitle such officers and employees to receive an amount, in cash or in Company common stock issued pursuant to the Company’s Amended and Restated 2009 Equity Incentive Plan, measured generally by the price of the Company’s common stock on the settlement date. KELTIP Units are not an actual equity interest in the Company and are solely unfunded and unsecured obligations of the Company that are not transferable and do not provide the holder with any stockholder rights. Payment of the settlement amount of vested KELTIP Units is deferred generally until the earlier of a change of control of the Company or the date the grantee ceases to serve as an officer or employee of the Company.  The KELTIP Units are recorded as a liability. On May 19, 2016 the Company awarded 585,000 KELTIP Units to two officers of the Company and recorded approximately $0.3 million of compensation expense, included in stock based compensation in the Condensed Consolidated Statement of Operations and Comprehensive Loss. At June 30, 2016 the KELTIP Units were marked-to-market and the Company recognized approximately $0.1 million of additional compensation expense. At June 30, 2016 the 585,000 KELTIP Units were outstanding. At December 31, 2015 there were no KELTIP Units outstanding.

Common stock warrants

The following table summarizes the status of the Company’s common stock warrants at June 30, 2016 and the changes during the six months then ended:

		Weighted
	Number of	Average Exercise
	Underlying	Price Per
Common Stock Warrants	Shares	Share
Outstanding at December 31, 2015	8,777,409	$	3.95
Granted during period	6,000,000	$	0.75
Dilution adjustment	2,801,541
Expired  during period	—
Exercised during period	—
Outstanding at June 30, 2016	17,578,950	$	2.17

The warrants relate to prior and current registered offerings and private placements of the Company’s stock.  In September 2012, the Company closed on a registered offering and concurrent private placement with Sentient in which it sold units, consisting of one share of common stock and a five-year warrant to acquire one half of a share of common stock at an exercise price of $8.42 per share. A total of 3,431,649 warrant shares were issued and became exercisable on March 20, 2013 and will expire on September 19, 2017, five years from the date of issuance.

In September 2014 the Company closed on a registered public offering and concurrent private placement with Sentient in which it sold units, consisting of one share of common stock and a five-year warrant to acquire one half of a share of common stock at an exercise price of $1.21 per share.  A total of 4,746,000 warrant shares were issued that became exercisable on March 11, 2015 and will expire on September 10, 2019, five years from the date of issuance.

On May 6, 2016 the Company closed on the Offering (discussed above) under which the investors received an unregistered warrant to purchase three‐quarters of a share of common stock for each share of common stock purchased. The resulting 6,000,000 warrants have an exercise price of $0.75 per share and are exercisable six months after the date of issuance and will expire on November 6, 2021, five years from the initial exercise date.

The warrants issued in September 2012 and September 2014 are being recorded as a liability on the balance sheet as a result of anti-dilution clauses in the warrant agreements that could result in a resetting of the warrant exercise price in the event the Company were to issue additional shares of its common stock in a future transaction at an offering price lower than the current exercise price of the warrants. The May 2, 2016 warrant agreement did not contain an anti-dilution clause and the warrants were recorded as equity.

Pursuant to the anti-dilution clauses in the September 2012 and 2014 warrant agreements, the exercise price of the warrants has been adjusted downward as a result of the subsequent issuance of the Company’s common stock in separate transactions, including the September 2014 registered public offering and private placement, the conversion of the Sentient Note, and the recent Offering (discussed above).  As a result of these transactions, the number of shares of common stock issuable upon exercise of the September 2012 Warrants was increased from the original 3,431,649 shares to 6,120,573 shares (2,688,924 share increase) and the exercise price was reduced from the original $8.42 per share to $4.72 per share. The number of shares of common stock issuable upon exercise of the September 2014 Warrants was increased from the original 4,746,000 shares to 5,458,377 shares (712,377 share increase) and the exercise price was reduced from the original $1.21 per share to $0.87 per share.

At June 30, 2016 the total liability recorded for the 2012 and 2014 warrants was $2.5 million, consisting of $2.2 million for the 2014 warrants and $0.3 million for the 2012 warrants.  The warrant liability has been recorded at fair value as of June 30, 2016 based primarily on a valuation performed by a third party expert using a Monte Carlo simulation, which falls within Level 3 of the fair value hierarchy (see Note 13).

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Revenue and Related Costs

6 Months Ended

Jun. 30, 2016

Revenue Recognition [Abstract]

Revenue and Related Costs

16.     Revenue and Related Costs

Oxide Plant Lease and Oxide Plant Lease Costs

For the six months ended June 30, 2016 the Company recorded revenue of approximately $3.0 million and related costs of approximately $0.9 million associated with the lease of the Velardeña Properties oxide plant. The Company recognizes oxide plant lease fees and reimbursements for labor, utility and other costs as "Revenue from oxide plant lease" in the Consolidated Statements of Operations and Comprehensive Loss following the guidance of ASC 605 regarding "income statement characterization of reimbursements received for "out-of-pocket" expenses incurred" and "reporting revenue gross as a principal versus net as an agent". ASC 605 supports recording as gross revenue fees received for the reimbursement of expenses in situations where the recipient is the primary obligor and has certain discretion in the incurrence of the reimbursable expense. The actual costs incurred for reimbursed direct labor and utility costs are reported as "Oxide plant lease costs" in the statement of operations. The Company recognizes lease fees during the period the fees are earned per the terms of the lease.

In addition, the Company had received an advance lease payment of $0.5 million during 2015 that was applied to the lease amounts due during the first four months of 2016. At December 31, 2015 the advance payment balance was recorded as deferred revenue in the amount of $0.5 million on the accompanying Condensed Consolidated Balance Sheets.

For the six months ended June 30, 2015 the Company had no plant lease revenue or plant lease costs.

Sale of Metals and Cost of Metals Sold

For the six months ended June 30, 2016 the Company had no sale of metals or cost of metals sold as a result of the suspension of mining and processing at the Velardeña Properties in November 2015.

During the six months ended June 30, 2015 the Company sold marketable lead and zinc concentrates from its Velardeña Properties to a single customer.  Under the terms of the Company’s agreement with its concentrates customer, title passed when a provisional payment was made, which occurred generally after the product was shipped and customary sales documents were completed.  Costs related to the sale of metals products include direct and indirect costs incurred to mine, process and market the products.  At June 30, 2015 the Company had written down its metals and in-process inventories to net realizable value including a charge to the cost of metals sold of approximately $0.2 million.

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Interest and Other Income

6 Months Ended

Jun. 30, 2016

Interest and Other Income.

Interest and Other Income

17.     Interest and Other Income

For the six months ended June 30, 2016 the Company had only a nominal amount of interest and other income.  For the six months ended June 30, 2015 the Company reported interest and other income of $1.4 million related primarily to the reduction of a loss contingency liability related to foreign withholding taxes that the government could assert are owed by the Company, acting as withholding agent, on certain interest payments made to a third party.

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Derivative Loss

6 Months Ended

Jun. 30, 2016

Derivative Loss

Derivative Loss

18.     Derivative Loss

During the six months ended June 30, 2016 the Company recorded approximately $2.3 million of warrant derivative loss related to an increase in the fair value of the liability recorded for warrants to acquire the Company’s common stock (see Note 15).  During the six months ended June 30, 2015 the Company recorded approximately $0.9 million of warrant derivative income related to a decrease in the fair value of the liability recorded for the warrants. The warrant liability has been recorded at fair value as of June 30, 2016 and 2015 based primarily on a valuation performed by a third party expert using a Monte Carlo simulation, which falls within Level 3 of the fair value hierarchy (see Note 13).  The valuation model takes into account the probability that the Company could issue additional shares in a future transaction at a lower price than the current exercise price of the warrants.  Significant inputs to the valuation model included prices for the warrants disclosed above, the probability of an additional issuance of the Company’s common stock at a lower price than the current warrant exercise price and the inputs in the table below for the respective periods.

During the six months ended June 30, 2016 the Company recorded approximately $0.8 million of derivative loss related to an increase in the fair value of the derivative liability related to the Sentient Loan (see Note 11). The derivative liability was recorded at fair value at June 10, 2016, the date of the conversion of the remaining note (see Note 11), based primarily on a valuation performed by a third party expert using a Monte Carlo simulation, which falls within Level 3 of the fair value hierarchy (see Note 13).  Significant inputs to the valuation model included: 1) the probability of successfully achieving stockholder approval of the loan’s conversion feature, 2) future variations in the Company’s stock price, and 3) the probability of entering into an equity transaction prior to the loan maturity date that would lower the conversion price.

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Supplemental Cash Flow Information

6 Months Ended

Jun. 30, 2016

Cash flow information

Supplemental Cash Flow Information

19.     Supplemental Cash Flow Information

The following table reconciles net loss for the period to cash used in operations:

	Six Months Ended June 30,
	2016		2015
	(in thousands)
Cash flows from operating activities:
Net loss	$	(10,176)	$	(7,281)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization and depreciation		971		2,534
Accretion of asset retirement obligation		97		100
Foreign currency gain on loss contingency		—		(69)
Asset write off		34		2
Write off of loss contingency, net		—		(1,142)
Gain on sale of assets, net		(45)		(256)
Amortization of deferred loan costs		57		—
Warrant liability fair market adjustment		2,276		(868)
Derivative liability fair market adjustment		778		—
Accretion of loan discount		372		—
Loss on debt extinguishment		1,653		—
Deferred income taxes		(26)		—
Stock compensation		571		273
Changes in operating assets and liabilities:
(Increase) in trade accounts receivable		(112)		(43)
Decrease in prepaid expenses and other assets		3		131
Decrease in inventories		40		200
Decrease in value added tax recoverable, net		347		662
Increase in accrued interest payable net of amounts capitalized		85		—
Decrease in deferred revenue		(500)		—
(Decrease) in reclamation liability		(8)		(6)
(Decrease) increase in accounts payable and accrued liabilities		(183)		222
Decrease in deferred leasehold payments		(8)		(4)
Net cash used in operating activities	$	(3,774)	$	(5,545)

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2016

Commitments and Contingencies

Commitments and Contingencies

20.Commitments and Contingencies

The Company recorded a loss contingency of approximately $0.2 million at June 30, 2016, included in other current liabilities on the Consolidated Balance Sheets, for estimated interest and penalties related to the Argentina tax on equity (see Note 12).  The Company recorded a loss contingency of approximately $0.3 million at December 31, 2015 for estimated interest and penalties related to the Argentina tax on equity and a disputed contract with a third party contractor in Mexico (see Note 12).

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Segment Information

6 Months Ended

Jun. 30, 2016

Segment Information

Segment Information

21.Segment Information

The Company’s sole activity is the mining, construction and exploration of mineral properties containing precious metals. The Company’s reportable segments are based upon the Company’s revenue producing activities and cash consuming activities. The Company reports two segments, one for its Velardeña Properties in Mexico and the other comprised of non-revenue producing activities including exploration, construction and general and administrative activities. Intercompany revenue and expense amounts have been eliminated within each segment in order to report on the basis that management uses internally for evaluating segment performance.

The financial information relating to the Company’s segments is as follows:

							Exploration, El
			Costs		Depreciation,		Quevar, Velardeña
Three Months Ended			Applicable		Depletion and		and Administrative						Capital
June 30, 2016	Revenue		to Sales		Amortization		Expense		Pre-Tax loss		Total Assets		Expenditures
Velardeña Properties	$	1,576	$	455	$	313	$	779	$	33			$	19
Corporate, Exploration & Other		—		—		108		2,444		3,882				1
	$	1,576	$	455	$	421	$	3,223	$	3,915			$	20
Six Months Ended
June 30, 2016
Velardeña Properties	$	3,039	$	929	$	733	$	1,589	$	244	$	7,111	$	19
Corporate, Exploration & Other		—		—		238		4,378		9,958		8,332		1
	$	3,039	$	929	$	971	$	5,967	$	10,202	$	15,443	$	20
Three Months Ended
June 30, 2015
Velardeña Properties	$	1,961	$	2,775	$	1,012	$	—	$	1,347			$	28
Corporate, Exploration & Other		—		—		163		2,511		2,503				16
	$	1,961	$	2,775	$	1,175	$	2,511	$	3,850			$	44
Six Months Ended
June 30, 2015
Velardeña Properties	$	4,298	$	5,787	$	2,195	$	119	$	2,219	$	23,895	$	28
Corporate, Exploration & Other		—		—		339		5,214		5,062		8,252		16
	$	4,298	$	5,787	$	2,534	$	5,333	$	7,281	$	32,147	$	44

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Subsequent Event

6 Months Ended

Jun. 30, 2016

Subsequent Event.

Subsequent Event

22.Subsequent Event

On August 2, 2016, the Company entered into a definitive agreement to sell its remaining 50% interest in the San Diego property in Mexico to Golden Tag Resources, Ltd., the company that holds the other 50% interest in the property.  As a result of the sale, the Company received approximately $379,000 in cash and 2,500,000 shares of Golden Tag.  Pursuant to the agreement, Golden Tag will be required to pay the Company a 2.0% net smelter return royalty in respect to the San Diego property.  The Company had previously written down the value of the San Diego property to approximately zero and accordingly will recognize a gain of approximately $0.5 million on the sale in the third quarter 2016.  Following receipt of the new shares, and including the 5,000,000 shares of Golden Tag previously acquired, the Company now holds 7,500,000 shares representing approximately 10% of the outstanding shares of Golden Tag. 

On August 5, 2016, the Company, through its wholly owned Mexican subsidiary, entered into an earn-in agreement with a 100% owned Mexican subsidiary of Electrum Global Holdings, L.P., a privately owned company (together “Electrum”), related to the Company’s Celaya exploration property in Mexico. The Company received an upfront payment of $200,000 and Electrum has agreed to incur exploration expenditures totaling at least $0.5 million within the first year of the agreement, reduced by certain costs Electrum previously incurred on the property since December 2015 in its ongoing surface exploration program.  Electrum, at its option, can elect to acquire an undivided 60% interest in a joint venture company to be formed to hold the Celaya project after incurring exploration expenditures totaling $2.5 million during the first three years of the agreement. Following the initial three year earn-in period the joint venture Company would be formed to hold all project assets and a management committee would be formed with one representative of the Company and two representatives of Electrum. Electrum would serve as manager of the project. The Company would have the right to maintain its 40% interest in the Celaya project by funding its share of additional exploration or development expenditures. If the Company were to elect not to contribute to additional exploration or development expenditures after the initial earn-in period, Electrum, at its option, would have the right to earn an additional 20% interest in the Celaya project, for a total interest of 80%, by incurring an additional $2.5 million of exploration or development expenditures over a second three year period. Following the second earn-in period the Company would have the right to maintain its 20% interest in the Celaya project by funding its share of additional exploration or development expenditures or its interest can ultimately be converted into a 10% net profits interest. The Company has previously expensed all of its costs associated with the Celaya property and accordingly will recognize a gain of $0.2 million from the farm-out of the property in the third quarter 2016.

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Cash and Cash Equivalents and Short-Term Investments (Tables)

6 Months Ended

Jun. 30, 2016

Cash and Cash Equivalents and Short-Term Investments

Schedule of short term-investments

			Estimated		Carrying
June 30, 2016	Cost		Fair Value		Value
		(inthousands)
Investments:
Short-term:
Available for sale common stock	$	199	$	269	$	269
Total available for sale		199		269		269
Total short term	$	199	$	269	$	269
December 31, 2015
Investments:
Short-term:
Available for sale common stock	$	199	$	72	$	72
Total available for sale		199		72		72
Total short term	$	199	$	72	$	72

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Prepaid Expenses and Other Assets (Tables)

6 Months Ended

Jun. 30, 2016

Prepaid Expenses and Other Assets

Schedule of prepaid expenses and other current assets

	June 30,			December 31,
	2016			2015
	(in thousands)
Prepaid insurance	$	294	$	302
Prepaid contractor fees and vendor advances		24		12
Recoupable deposits and other		130		137
	$	448	$	451

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Inventories (Tables)

6 Months Ended

Jun. 30, 2016

Inventories

Schedule of inventories at the Velardena Properties

	June 30,		December 31,
	2016		2015
	(in thousands)
Material and supplies	$	290	$	330
	$	290	$	330

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Property, Plant and Equipment, Net (Tables)

6 Months Ended

Jun. 30, 2016

Property, Plant and Equipment

Schedule of components of property, plant and equipment

	June 30,		December 31,
	2016		2015
	(in thousands)
Mineral properties	$	9,614	$	9,630
Exploration properties		2,518		2,518
Royalty properties		200		200
Buildings		4,381		4,377
Mining equipment and machinery		16,868		16,998
Other furniture and equipment		842		841
Asset retirement cost		992		1,285
		35,415		35,849
Less: Accumulated depreciation and amortization		(25,573)		(24,724)
	$	9,842	$	11,125

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Accounts Payable and Other Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2016

Accounts Payable and Other Accrued Liabilities

Schedule of accounts payable and other accrued liabilities

	June 30,		December 31,
	2016		2015
	(in thousands)
Accounts payable and accruals	$	668	$	599
Accrued employee compensation and benefits		870		545
	$	1,538	$	1,144

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Asset Retirement Obligation and Reclamation Liabilities (Tables)

6 Months Ended

Jun. 30, 2016

Asset Retirement Obligation and Reclamation Liabilities

Summary of activity in the Velardena Properties ARO

	Six Months Ended
	June 30,
	2016		2015
	(in thousands)
Beginning balance	$	2,480	$	2,582
Changes in estimates, and other		(293)		(300)
Accretion expense		97		100
Ending balance	$	2,284	$	2,382

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2016

Fair Value Measurements

Schedule of financial assets and liabilities at fair value

	Level 1		Level 2		Level 3		Total
	(in thousands)
At June 30, 2016
Assets:
Cash and cash equivalents	$	3,932	$	—	$	—	$	3,932
Trade accounts receivable		658		—		—		658
Short-term investments		269		—		—		269
	$	4,859	$	—	$	—	$	4,859
Liabilities:
Warrant liability	$	—	$	—	$	2,486	$	2,486
	$	—	$	—	$	2,486	$	2,486
At December 31, 2015
Assets:
Cash and cash equivalents	$	4,077	$	—	$	—	$	4,077
Trade accounts receivable		546		—		—		546
Short-term investments		72		—		—		72
	$	4,695	$	—	$	—	$	4,695
Liabilities:
Warrant liability	$	—	$	—	$	210	$	210
Derivative liability		—		—		488		488
	$	—	$	—	$	698	$	698

Schedule of significant inputs to the valuation model

	June 30,		December 31,
	2016		2015
Company's ending stock price	$	0.65	$	0.20
Company's stock volatility		105%		85%
Applicable risk free interest rate		0.74%		1.48%

Summary of change in fair value of the warrant liability

	Fair Value Measurements
	Using Significant Unobservable
	Inputs (Level 3)
	Warrant Liabilities		Derivative  Liability
	(in thousands)
Ending balance at December 31, 2015	$	210	$	488
Conversion of Sentient Loan (see Note 11)		—		(488)
Change in estimated fair value		2,276		—
Ending balance at June 30, 2016	$	2,486	$	—

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Equity (Tables)

6 Months Ended

Jun. 30, 2016

Equity

Schedule of status of the restricted stock grants issued under the Equity Plan

		Weighted
		Average Grant
		Date Fair
	Number of	Value Per
Restricted Stock Grants	Shares	Share
Outstanding at December 31, 2015	84,170	$	0.46
Granted during the period	—		—
Restrictions lifted during the period	(836)		2.89
Forfeited during the period	—		—
Outstanding at June 30, 2016	83,334	$	0.44

Schedule of status of the stock option grants issued under the Equity Plan

		Weighted
		Average
		Exercise
	Number of	Price Per
Equity Plan Options	Shares	Share
Outstanding at December 31, 2015	245,810	$	3.47
Granted during the period	—		—
Restrictions lifted during the year	—		—
Forfeited or expired  during period	(150,000)	$	0.56
Exercised during period	—		—
Outstanding at June 30, 2016	95,810	$	8.02
Exercisable at end of period	95,810	$	8.02
Granted and vested	95,810	$	8.02

Schedule of restricted stock units

		Weighted
		Average Grant
	Number of	Date Fair
	Underlying	ValuePer
Restricted Stock Units	Shares	Share
Outstanding at December 31, 2015	1,245,285	$	1.66
Granted during the period	530,000		0.42
Restrictions lifted during the period	(167,968)		1.40
Forfeited during the period	—		—
Outstanding at June 30, 2016	1,607,317	$	1.28

Summary of the status of the Company's common stock warrants

		Weighted
	Number of	Average Exercise
	Underlying	Price Per
Common Stock Warrants	Shares	Share
Outstanding at December 31, 2015	8,777,409	$	3.95
Granted during period	6,000,000	$	0.75
Dilution adjustment	2,801,541
Expired  during period	—
Exercised during period	—
Outstanding at June 30, 2016	17,578,950	$	2.17

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Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2016

Cash flow information

Schedule of reconciliation of net loss for the period to cash used in operations

	Six Months Ended June 30,
	2016		2015
	(in thousands)
Cash flows from operating activities:
Net loss	$	(10,176)	$	(7,281)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization and depreciation		971		2,534
Accretion of asset retirement obligation		97		100
Foreign currency gain on loss contingency		—		(69)
Asset write off		34		2
Write off of loss contingency, net		—		(1,142)
Gain on sale of assets, net		(45)		(256)
Amortization of deferred loan costs		57		—
Warrant liability fair market adjustment		2,276		(868)
Derivative liability fair market adjustment		778		—
Accretion of loan discount		372		—
Loss on debt extinguishment		1,653		—
Deferred income taxes		(26)		—
Stock compensation		571		273
Changes in operating assets and liabilities:
(Increase) in trade accounts receivable		(112)		(43)
Decrease in prepaid expenses and other assets		3		131
Decrease in inventories		40		200
Decrease in value added tax recoverable, net		347		662
Increase in accrued interest payable net of amounts capitalized		85		—
Decrease in deferred revenue		(500)		—
(Decrease) in reclamation liability		(8)		(6)
(Decrease) increase in accounts payable and accrued liabilities		(183)		222
Decrease in deferred leasehold payments		(8)		(4)
Net cash used in operating activities	$	(3,774)	$	(5,545)

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2016

Segment Information

Schedule of financial information relating to segments

							Exploration, El
			Costs		Depreciation,		Quevar, Velardeña
Three Months Ended			Applicable		Depletion and		and Administrative						Capital
June 30, 2016	Revenue		to Sales		Amortization		Expense		Pre-Tax loss		Total Assets		Expenditures
Velardeña Properties	$	1,576	$	455	$	313	$	779	$	33			$	19
Corporate, Exploration & Other		—		—		108		2,444		3,882				1
	$	1,576	$	455	$	421	$	3,223	$	3,915			$	20
Six Months Ended
June 30, 2016
Velardeña Properties	$	3,039	$	929	$	733	$	1,589	$	244	$	7,111	$	19
Corporate, Exploration & Other		—		—		238		4,378		9,958		8,332		1
	$	3,039	$	929	$	971	$	5,967	$	10,202	$	15,443	$	20
Three Months Ended
June 30, 2015
Velardeña Properties	$	1,961	$	2,775	$	1,012	$	—	$	1,347			$	28
Corporate, Exploration & Other		—		—		163		2,511		2,503				16
	$	1,961	$	2,775	$	1,175	$	2,511	$	3,850			$	44
Six Months Ended
June 30, 2015
Velardeña Properties	$	4,298	$	5,787	$	2,195	$	119	$	2,219	$	23,895	$	28
Corporate, Exploration & Other		—		—		339		5,214		5,062		8,252		16
	$	4,298	$	5,787	$	2,534	$	5,333	$	7,281	$	32,147	$	44

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Basis of Preparation of Financial Statements and Nature of Operations (Details) $ in Thousands	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($) property	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Shutdown and care and maintenance costs	$ 546		$ 1,133
Number of exploration properties | property			10
Velardena properties
Interest acquired (as a percent)	100.00%		100.00%
Employee severance and other costs					$ 1,200
Shutdown and care and maintenance costs			$ 1,100
Quarterly holding costs expected with suspended operations			$ 300
Forecast | Velardena properties
Shutdown and care and maintenance costs		$ 700
Oxide Plant Lease Agreement | Forecast | Velardena properties
Proceeds from lease				$ 4,500

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Liquidity, Capital Resources and Going Concern (Details) - USD ($)				3 Months Ended			6 Months Ended
	Jun. 10, 2016	May 06, 2016	Feb. 11, 2016	Sep. 30, 2016	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2016	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015	Dec. 31, 2014
Cash and cash equivalents					$ 3,932,000	$ 3,291,000		$ 3,932,000	$ 3,291,000	$ 4,077,000	$ 8,579,000
Net decrease in cash and cash equivalents								(145,000)	(5,288,000)
Shutdown and care and maintenance costs					546,000			1,133,000
Exploration expenditures					1,162,000	1,267,000		1,938,000	2,236,000
General and administrative expenses					1,026,000	$ 1,000,000		2,244,000	$ 2,328,000
Decrease in deferred revenue								(500,000)
Net revenue from lease								2,100,000
Proceeds from sales of non strategic property and equipment								200,000
Proceeds from issuance of common stock, net of issue costs		$ 3,600,000						3,599,000
Registered offering stock units (in shares)		8,000,000
Sale price (in dollars per shares)		$ 0.50
Gross proceeds from common stock sale		$ 4,000,000
Equity issue costs		$ 400,000
Deferred revenue										500,000
Sentient Loan
Amount of debt converted to equity	$ 1,100,000		$ 3,900,000
Amount of accrued interest converted to equity	$ 34,000		$ 100,000
Equity shares issued upon conversion of debt	4,011,740		23,355,000
Debt outstanding	$ 0				$ 0			0
Forecast
Cash and cash equivalents							$ 3,000,000
General and administrative expenses							1,400,000
Net revenue from lease							2,400,000
Proceeds from sales of non strategic property and equipment				$ 600,000
Net cash flow							3,900,000
Other exploration and property holding costs							1,100,000
Increase (decrease) in working capital, net							400,000
Velardena properties
Shutdown and care and maintenance costs								1,100,000
Velardena properties | Forecast
Shutdown and care and maintenance costs							700,000
El Quevar Project
Maintenance and property holding costs								$ 400,000
El Quevar Project | Forecast
Maintenance and property holding costs							$ 300,000
Oxide Plant Lease Agreement | Velardena properties
Deferred revenue										$ 500,000
2016 Warrants
Number of common shares which can be purchased with each warrant		0.75
Exercise price of warrants (in dollars per share)		$ 0.75
Warrant becomes exercisable		6 months
Term of warrants		5 years

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Cash and Cash Equivalents and Short-term Investments (Details) $ in Thousands		3 Months Ended
	Mar. 24, 2015 USD ($)	Mar. 31, 2015 shares	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)
Investments:
Available for sale common stock			$ 199	$ 199
Total available for sale			199	199
Total short term			199	199
Available for sale common stock			269	72
Total available for sale.			269	72
Total short term			$ 269	72
Junior Mining Company
Investments:
Shares received | shares		5,000,000
Ownership interest in outstanding common stock (as a percent)			9.00%
Carrying Value.
Investments:
Available for sale common stock			$ 269	72
Total available for sale.			269	72
Total short term			$ 269	$ 72
San Diego
Investments:
Extension period	2 years
Additional interest in joint venture	10.00%
Additional payments in joint venture	$ 800
San Diego | Junior Mining Company
Investments:
Ownership in property (as a percent)		50

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Prepaid Expenses and Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Prepaid Expenses and Other Assets
Prepaid insurance	$ 294	$ 302
Prepaid contractor fees and vendor advances	24	12
Recoupable deposits and other	130	137
Prepaid expenses and other assets	$ 448	$ 451

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Inventories (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Inventories
Metals inventory	$ 0	$ 0
In-process inventory	0	0
Material and supplies	290	330
Inventories	290	330
Obsolescence charge reflected in shutdown costs	$ 200	$ 300

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Value added tax receivable (Details)	6 Months Ended
	Jun. 30, 2016 USD ($)
Value added tax receivable, net
Expected period within which current amount of VAT will be recovered	1 year
VAT receivables offset against VAT payable	$ 49,000

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Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2012
Property, plant and equipment
Property, plant and equipment, gross	$ 35,415	$ 35,849
Less: Accumulated depreciation & amortization	(25,573)	(24,724)
Property, plant and equipment, net	9,842	11,125
Mineral properties
Property, plant and equipment
Property, plant and equipment, gross	9,614	9,630
Exploration properties
Property, plant and equipment
Property, plant and equipment, gross	2,518	2,518
Royalty properties
Property, plant and equipment
Property, plant and equipment, gross	200	200
Buildings
Property, plant and equipment
Property, plant and equipment, gross	4,381	4,377
Mining equipment and machinery
Property, plant and equipment
Property, plant and equipment, gross	16,868	16,998
Other furniture and equipment
Property, plant and equipment
Property, plant and equipment, gross	842	841
Asset retirement cost
Property, plant and equipment
Property, plant and equipment, gross	$ 992	$ 1,285
Velardena properties | Asset retirement cost
Property, plant and equipment
Property, plant and equipment, net			$ 1,900

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Accounts Payable and Other Accrued Liabilities (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Accounts payable and accruals	$ 668,000	$ 599,000
Accrued employee compensation and benefits	870,000	545,000
Accounts payable and other accrued liabilities	1,538,000	1,144,000
Accrued vacation	200,000	100,000
Withholding taxes and benefits payable	700,000	400,000
Velardena properties
Accounts payable and accruals	400,000	300,000
Withholding taxes and benefits payable	300,000	200,000
Accrued income taxes net of VAT credits receivable	50,000
Corporate, Exploration & Other
Accounts payable and accruals	$ 300,000	$ 300,000

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Asset Retirement Obligation and Reclamation Liabilities (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Property, plant and equipment, net		$ 9,842,000		$ 11,125,000
Summary of activity in the Velardena Operations ARO
Beginning balance		2,546,000
Accretion expense		97,000	$ 100,000
Ending balance		2,342,000
Velardena properties
ARO arising in the period	$ 3,500,000
Amortization expense related to the ARC		20,000
Summary of activity in the Velardena Operations ARO
Beginning balance		2,480,000	2,582,000
Changes in estimates, and other		(293,000)	(300,000)
Accretion expense		97,000	100,000
Ending balance		2,284,000	$ 2,382,000
ARO arising in the period (acquired at merger)	3,500,000
Velardena properties | Asset retirement cost
Property, plant and equipment, net	$ 1,900,000
El Quevar Project
Summary of activity in the Velardena Operations ARO
Beginning balance		100,000
Ending balance		$ 100,000

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Convertible Note Payable – Related Party, Net (Details)					3 Months Ended	6 Months Ended
	Jun. 10, 2016 USD ($) item $ / shares shares	Feb. 11, 2016 USD ($) item $ / shares shares	Jan. 19, 2016 item $ / shares	Oct. 27, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)
Gain (loss) on debt extinguishment					$ 13,000	$ (1,653,000)
Sentient Loan
Principal amount of loan				$ 5,000,000
Stock price trigger (as a percent)	90.00%	90.00%
Consecutive trading days, period | item	15	15
Interest rate (as a percent)				9.00%
Fair value of imbedded derivative				$ 1,100,000
Debt issuance costs				$ 300,000
Effective interest rate (as a percent)					36.00%	36.00%
Amount of debt converted to equity	$ 1,100,000	$ 3,900,000
Amount of accrued interest converted to equity	$ 34,000	$ 100,000
Equity shares issued upon conversion of debt | shares	4,011,740	23,355,000
Exercise price per share of shares converted from debt | $ / shares	$ 0.289	$ 0.172
Gain (loss) on imbedded derivative						$ 800,000
Debt outstanding	$ 0				$ 0	$ 0
Period Preceding Loan Closure Date | Sentient Loan
Stock price trigger (in dollars per share) | $ / shares			$ 0.29
Stock price trigger (as a percent)			90.00%
Consecutive trading days, period | item			15
Period Preceding Loan Conversion Date | Sentient Loan
Stock price trigger (as a percent)			90.00%
Consecutive trading days, period | item			15

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Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Other current liabilities	$ 229	$ 556
Third party contractor in Mexico
Loss contingency accrual		100
Sentient Loan
Accrued interest		100
Argentina Equity Tax 2009 Through 2012
Net income tax due	200	$ 400
Interest and penalties accrued	$ 200

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Fair value measurements (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Fair value measurements
Derivative liability-related party		$ 488
Company's ending stock price (in dollars per share)	$ 0.65	$ 0.20
Company's stock volatility (as a percent)	105.00%	85.00%
Applicable risk free interest rate (as a percent)	0.74%	1.48%
Warrant Liability
Changes in level 3
Beginning Balance	$ 210
Change in estimated fair value	2,276
Ending Balance	2,486	$ 210
Derivative Liability
Changes in level 3
Beginning Balance	488
Conversion of Sentient Loan	(488)
Ending Balance		488
Recurring
Fair value measurements
Cash and cash equivalents	3,932	4,077
Trade accounts receivable	658	546
Short-term investments	269	72
Assets	4,859	4,695
Warrant liability	2,486	210
Derivative liability-related party		488
Liabilities	2,486	698
Recurring | Level 1
Fair value measurements
Cash and cash equivalents	3,932	4,077
Trade accounts receivable	658	546
Short-term investments	269	72
Assets	4,859	4,695
Recurring | Level 3
Fair value measurements
Warrant liability	2,486	210
Derivative liability-related party		488
Liabilities	2,486	$ 698
Non-recurring
Fair value measurements
Fair value measurements	$ 0

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Income Taxes (Details) - USD ($)	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Income Taxes
Increase (decrease) in valuation allowance	$ (26,000)
Net deferred tax assets	0	$ 0
Net deferred tax liabilities	0	0
Unrecognized tax benefits	$ 0	$ 0

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Equity - (Issue and Conversion) (Details)					6 Months Ended	12 Months Ended
	Jun. 10, 2016 USD ($) item $ / shares shares	May 06, 2016 USD ($) $ / shares shares	Apr. 29, 2016 USD ($)	Feb. 11, 2016 USD ($) item $ / shares shares	Jun. 30, 2016 USD ($) shares	Dec. 31, 2015 shares
Common stock issued (in shares) | shares		8,000,000
Sale price (in dollars per shares) | $ / shares		$ 0.50
Gross proceeds from common stock sale		$ 4,000,000
Equity issue costs		400,000
Proceeds from issuance of common stock, net of issue costs		$ 3,600,000			$ 3,599,000
Volatility (as a percent)					105.00%	85.00%
Applicable risk free interest rate (as a percent)					0.74%	1.48%
Common stock, shares issued | shares					88,920,041	53,335,333
Common stock, shares outstanding | shares					88,920,041	53,335,333
2016 Warrants
Number of common shares which can be purchased with each warrant | shares		0.75
Warrants outstanding (in shares) | shares		6,000,000
Exercise price of warrants (in dollars per share) | $ / shares		$ 0.75
Warrant becomes exercisable		6 months
Term of warrants		5 years
Warrant liability fair value			$ 3,600,000
Volatility (as a percent)			105.00%
Applicable risk free interest rate (as a percent)			0.74%
Sentient
Ownership (as a percent)	47.00%
Sentient Loan
Amount of debt converted to equity	$ 1,100,000			$ 3,900,000
Amount of accrued interest converted to equity	$ 34,000			$ 100,000
Equity shares issued upon conversion of debt | shares	4,011,740			23,355,000
Exercise price per share of shares converted from debt | $ / shares	$ 0.289			$ 0.172
Stock price trigger (as a percent)	90.00%			90.00%
Consecutive trading days, period | item	15			15
Debt outstanding	$ 0				$ 0

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Equity - (Incentive) (Details)		1 Months Ended	3 Months Ended		6 Months Ended
	May 19, 2016 USD ($) employee shares	Jun. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2015 USD ($)
Additional information
Compensation expense | $			$ 539,000	$ 94,000	$ 571,000	$ 273,000
Equity Plan | Restricted Stock
Number of Shares
Outstanding at beginning of year (in shares)					84,170
Restrictions lifted during the year (in shares)					(836)
Outstanding at end of year (in shares)		83,334	83,334		83,334
Weighted Average Grant Date Fair Value Per Share
Outstanding at beginning of year (in dollars per share) | $ / shares					$ 0.46
Restrictions lifted during the year (in dollars per share) | $ / shares					2.89
Outstanding at end of year (in dollars per share) | $ / shares		$ 0.44	$ 0.44		$ 0.44
Additional information
Compensation expense | $					$ 3,000,000,000
Additional compensation expense expected to be recognized | $		$ 3,000,000,000	$ 3,000,000,000		$ 3,000,000,000
Period for future recognition of additional compensation expense					6 months
Equity Plan | Restricted Stock | Employee
Number of Shares
Restrictions lifted during the year (in shares)					(834)
Equity Plan | Restricted Stock | Consultant
Additional information
Compensation expense | $	$ 21,000
Stock issued for services (in shares) | $	$ 50,000
Equity Plan | Employee and Directors Stock Options
Number of Shares
Outstanding at beginning of period (in shares)					245,810
Forfeited or expired during period (in shares)					(150,000)
Exercised during period (in shares)					0
Outstanding at end of year (in shares)		95,810	95,810		95,810
Exercisable at end of period (in shares)		95,810	95,810		95,810
Granted and vested (in shares)		95,810	95,810		95,810
Weighted Average Exercise Price Per Share
Outstanding at beginning of year (in dollars per share) | $ / shares					$ 3.47
Forfeited or expired during year (in dollars per share) | $ / shares					0.56
Exercised during period (in dollars per share) | $ / shares					0.00
Outstanding at end of year (in dollars per share) | $ / shares		$ 8.02	$ 8.02		8.02
Exercisable at end of period (in dollars per share) | $ / shares		8.02	8.02		8.02
Granted and vested (in dollars per share) | $ / shares		$ 8.02	$ 8.02		$ 8.02
Deferred Compensation Plan | Restricted Stock Units (RSUs)
Number of Shares
Outstanding at beginning of year (in shares)					1,245,285
Granted during the year (in shares)					530,000
Restrictions lifted during the year (in shares)					(167,968)
Outstanding at end of year (in shares)		1,607,317	1,607,317		1,607,317
Weighted Average Grant Date Fair Value Per Share
Outstanding at beginning of year (in dollars per share) | $ / shares					$ 1.66
Granted during the year (in dollars per share) | $ / shares					0.42
Restrictions lifted during the year (in dollars per share) | $ / shares					1.40
Outstanding at end of year (in dollars per share) | $ / shares		$ 1.28	$ 1.28		$ 1.28
Additional information
Compensation expense | $					$ 200,000
Additional compensation expense expected to be recognized | $		$ 100,000	$ 100,000		$ 100,000
Period for future recognition of additional compensation expense					11 months
Weighted Average Exercise Price Per Share
Number of unrestricted shares Director to receive for vested RSU upon termination from board					1
Deferred Compensation Plan | Restricted Stock Units (RSUs) | Board of Directors Chairman
Number of Shares
Granted during the year (in shares)					250,000
KELTIP | KELTIP Units | Officer
Number of Shares
Outstanding at beginning of year (in shares)					0
Granted during the year (in shares)	585,000
Outstanding at end of year (in shares)		585,000	585,000		585,000
Additional information
Number of employees | employee	2
Compensation expense | $	$ 300,000	$ 100,000

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Equity - (Warrants) (Details) $ / shares in Units, $ in Thousands				1 Months Ended		6 Months Ended	22 Months Ended	46 Months Ended
	Jun. 10, 2016 item	May 06, 2016 $ / shares shares	Feb. 11, 2016 item	Sep. 30, 2014 $ / shares shares	Sep. 30, 2012 $ / shares shares	Jun. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2016 USD ($) $ / shares shares	Jun. 30, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($)
Weighted Average Exercise Price Per Share
Common stock issued (in shares)		8,000,000
Warrant liability | $						$ 2,486	$ 2,486	$ 2,486	$ 210
Sale price (in dollars per shares) | $ / shares		$ 0.50
Sentient Loan
Weighted Average Exercise Price Per Share
Stock price trigger (as a percent)	90.00%		90.00%
Consecutive trading days, period | item	15		15
Warrant
Number of Underlying Shares
Outstanding, beginning balance (in shares)						8,777,409
Granted (in shares)						6,000,000
Dilution adjustment (in shares)						2,801,541
Outstanding, end balance (in shares)						17,578,950	17,578,950	17,578,950
Weighted Average Exercise Price Per Share
Outstanding, beginning balance (in dollars per share) | $ / shares						$ 3.95
Granted (in dollars per share) | $ / shares						0.75
Outstanding, end balance (in dollars per share) | $ / shares						$ 2.17	$ 2.17	$ 2.17
2012 Warrants
Number of Underlying Shares
Dilution adjustment (in shares)								2,688,924
Outstanding, end balance (in shares)						6,120,573	6,120,573	6,120,573
Weighted Average Exercise Price Per Share
Outstanding, end balance (in dollars per share) | $ / shares						$ 4.72	$ 4.72	$ 4.72
2012 Warrants | Sentient
Number of Underlying Shares
Granted (in shares)					3,431,649
Weighted Average Exercise Price Per Share
Outstanding, end balance (in dollars per share) | $ / shares					$ 8.42
Common stock issued (in shares)					1
Number of common shares which can be purchased with each warrant					0.5
Term of warrants					5 years
2014 Warrants
Number of Underlying Shares
Dilution adjustment (in shares)							712,377
Outstanding, end balance (in shares)						5,458,377	5,458,377	5,458,377
Weighted Average Exercise Price Per Share
Outstanding, end balance (in dollars per share) | $ / shares						$ 0.87	$ 0.87	$ 0.87
2014 Warrants | Sentient
Number of Underlying Shares
Granted (in shares)				4,746,000
Weighted Average Exercise Price Per Share
Outstanding, end balance (in dollars per share) | $ / shares				$ 1.21
Common stock issued (in shares)				1
Number of common shares which can be purchased with each warrant				0.5
Term of warrants				5 years
2016 Warrants
Number of Underlying Shares
Granted (in shares)		6,000,000
Outstanding, end balance (in shares)		6,000,000
Weighted Average Exercise Price Per Share
Outstanding, end balance (in dollars per share) | $ / shares		$ 0.75
Number of common shares which can be purchased with each warrant		0.75
Term of warrants		5 years
Warrant becomes exercisable		6 months
Level 3 | Warrant
Weighted Average Exercise Price Per Share
Warrant liability | $						$ 2,500	$ 2,500	$ 2,500
Level 3 | 2012 Warrants
Weighted Average Exercise Price Per Share
Warrant liability | $						2,200	2,200	2,200
Level 3 | 2014 Warrants
Weighted Average Exercise Price Per Share
Warrant liability | $						$ 300	$ 300	$ 300

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Revenue and Related Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Oxide plant lease	$ 1,576		$ 3,039
Lease related costs	$ 455		929
Deferred revenue					$ 500
Sale of metals		$ 1,961		$ 4,298
Inventory write down charged to cost of metals sold				200
Velardena properties
Sale of metals			0
Velardena properties | Oxide Plant Lease Agreement
Oxide plant lease			3,000	0
Lease related costs			$ 900	$ 0
Advance lease amounts received					500
Deferred revenue					$ 500

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Interest and Other Income (Details) $ in Millions	6 Months Ended
	Jun. 30, 2015 USD ($)
Interest and Other Income.
Gain on reduction and elimination of contingency liability	$ 1.4

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Derivative Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative loss
Warrant liability fair market adjustment	$ 1,096	$ (218)	$ 2,276	$ (868)
Derivative loss	$ (130)		(778)
Sentient Loan
Derivative loss
Derivative loss			800
Warrant Liability
Derivative loss
Warrant liability fair market adjustment			$ 2,300	$ (900)

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Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Cash flows from operating activities:
Net loss	$ (3,889)	$ (3,850)	$ (10,176)	$ (7,281)	$ (25,383)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization and depreciation	421	1,175	971	2,534
Accretion of asset retirement obligation			97	100
Foreign currency gain on loss contingency				(69)
Asset write off			34	2
Write off of loss contingency, net				(1,142)
Gain on sale of assets, net			(45)	(256)
Amortization of deferred loan costs			57
Warrant liability fair market adjustment	1,096	$ (218)	2,276	(868)
Derivative liability fair market adjustment	130		778
Accretion of loan discount			372
Loss on debt extinguishment	$ (13)		1,653
Deferred income taxes			(26)
Stock compensation			571	273
Changes in operating assets and liabilities:
(Increase) in trade accounts receivable			(112)	(43)
Decrease in prepaid expenses and other assets			3	131
Decrease in inventories			40	200
Decrease in value added tax receivable, net			347	662
Increase in accrued interest payable net of amounts capitalized			85
Decrease in deferred revenue			(500)
(Decrease) in reclamation liability			(8)	(6)
(Decrease) increase in accounts payable and accrued liabilities			(183)	222
Decrease in deferred leasehold payments			(8)	(4)
Net cash used in operating activities			$ (3,774)	$ (5,545)

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Commitments and Contingencies (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Commitments and Contingencies
Loss contingency	$ 0.2	$ 0.3

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Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) segment	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Segment Information
Number of reportable segments | segment			2
Revenue	$ 1,576	$ 1,961	$ 3,039	$ 4,298
Costs Applicable to Sales	455	2,775	929	5,787
Depreciation, depletion and amortization	421	1,175	971	2,534
Exploration, El Quevar, Velardena and Administrative Expense	3,223	2,511	5,967	5,333
Pre-Tax loss	3,915	3,850	10,202	7,281
Total Assets	15,443	32,147	15,443	32,147	$ 17,001
Capital Expenditures	20	44	$ 20	44
Velardena properties
Segment Information
Number of reportable segments | segment			1
Revenue	1,576	1,961	$ 3,039	4,298
Costs Applicable to Sales	455	2,775	929	5,787
Depreciation, depletion and amortization	313	1,012	733	2,195
Exploration, El Quevar, Velardena and Administrative Expense	779		1,589	119
Pre-Tax loss	33	1,347	244	2,219
Total Assets	7,111	23,895	7,111	23,895
Capital Expenditures	19	28	19	28
Corporate, Exploration & Other
Segment Information
Depreciation, depletion and amortization	108	163	238	339
Exploration, El Quevar, Velardena and Administrative Expense	2,444	2,511	4,378	5,214
Pre-Tax loss	3,882	2,503	9,958	5,062
Total Assets	8,332	8,252	8,332	8,252
Capital Expenditures	$ 1	$ 16	$ 1	$ 16

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Subsequent Event (Details)				3 Months Ended		6 Months Ended
	Aug. 05, 2016 USD ($) item	Aug. 02, 2016 USD ($) shares	Mar. 24, 2015 USD ($)	Sep. 30, 2016 USD ($)	Mar. 31, 2015 shares	Jun. 30, 2016 USD ($) shares	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Subsequent Events
Proceeds from sale of assets						$ 50,000	$ 301,000
Property value						9,842,000		$ 11,125,000
Gain on sale of assets						$ 45,000	$ 256,000
Junior Mining Company
Subsequent Events
Shares received | shares					5,000,000
Investment shares held (in shares) | shares						5,000,000
Ownership interest in outstanding common stock (as a percent)						9.00%
Junior Mining Company | Subsequent Event
Subsequent Events
Shares received | shares		2,500,000
Investment shares held (in shares) | shares		7,500,000
Ownership interest in outstanding common stock (as a percent)		10.00%
San Diego
Subsequent Events
Property value						$ 0
Additional payments in joint venture			$ 800,000
Additional interest in joint venture			10.00%
San Diego | Subsequent Event
Subsequent Events
Ownership in property (as a percent)		50
Gain on sale of assets				$ 500,000
San Diego | Junior Mining Company
Subsequent Events
Ownership in property (as a percent)					50
San Diego | Junior Mining Company | Subsequent Event
Subsequent Events
Ownership in property (as a percent)		50
Proceeds from sale of assets		$ 379,000
Net smelter return royalty (as a percent)		2.0
Celaya | Subsequent Event
Subsequent Events
Ownership in property (as a percent)	20
Gain on sale of assets				$ 200,000
Celaya | Subsequent Event | Second earn-in period
Subsequent Events
Ownership in property (as a percent)	40
Number of representatives | item	1
Electrum | Celaya | Subsequent Event
Subsequent Events
Proceeds from sale of assets	$ 200,000
Electrum | Celaya | Subsequent Event | Year one
Subsequent Events
Additional payments in joint venture	$ 500,000
Electrum | Celaya | Subsequent Event | Initial earn-in period
Subsequent Events
Ownership in property (as a percent)	60
Additional payments in joint venture	$ 2,500,000
Agreement period	3 years
Electrum | Celaya | Subsequent Event | Second earn-in period
Subsequent Events
Ownership in property (as a percent)	80
Additional payments in joint venture	$ 2,500,000
Agreement period	3 years
Number of representatives | item	2
Additional interest in joint venture	20.00%
Minimum | Celaya | Subsequent Event
Subsequent Events
Ownership in property (as a percent)	10