Vista Gold (VGZ) 10-Q 4 May 20 2020 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2020	Apr. 20, 2020
Cover [Abstract]
Entity Registrant Name	VISTA GOLD CORP.
Entity Central Index Key	0000783324
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2020
Entity Common Stock, Shares Outstanding		100,898,124
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false

UNAUDITED CONDENSED CONSOLIDATE

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 2,264	$ 1,408
Short-term investments (Note 3)	961	3,260
Other investments, at fair value (Note 3)	2,247	3,676
Other current assets	336	482
Total current assets	5,808	8,826
Non-current assets:
Mineral properties (Note 4)	2,146	2,146
Plant and equipment, net (Note 5)	5,611	5,623
Right-of-use assets	63	89
Total non-current assets	7,820	7,858
Total assets	13,628	16,684
Current liabilities:
Accounts payable	128	190
Accrued liabilities and other	758	640
Provision for environmental liability		240
Total current liabilities	886	1,070
Non-current liabilities:
Deferred option gain (Note 4)	2,960	2,960
Provision for environmental liability (Note 7)	240
Lease liability	6	8
Total non-current liabilities	3,206	2,968
Total liabilities	4,092	4,038
Commitments and contingencies – (Note 8)
Shareholders’ equity:
Common shares, no par value - unlimited shares authorized; shares outstanding: 2020 - 100,698,124 and 2019 - 100,268,161 (Note 6)	458,106	457,716
Accumulated deficit	(448,570)	(445,070)
Total shareholders’ equity	9,536	12,646
Total liabilities and shareholders’ equity	$ 13,628	$ 16,684

UNAUDITED CONSOLIDATED BALANCE

UNAUDITED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Shareholders' equity:
Common Shares, par value	$ 0	$ 0
Common Stock, Shares Authorized, Unlimited [Fixed List]	Unlimited	Unlimited
Common shares outstanding	100,698,124	100,268,161

UNAUDITED CONSOLIDATED STATEMEN

UNAUDITED CONSOLIDATED STATEMENTS OF INCOME/(LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating expense:
Exploration, property evaluation and holding costs	$ (948)	$ (946)
Corporate administration	(1,376)	(1,147)
Depreciation and amortization	(12)	(12)
Total operating expense	(2,336)	(2,105)
Non-operating income/(expense):
Loss on other investments (Note 3)	(1,129)	(624)
Interest income	10	42
Other income/(expense)	(45)	35
Total non-operating income/(expense)	(1,164)	(547)
Loss before income taxes	(3,500)	(2,652)
Net loss	$ (3,500)	$ (2,652)
Basic:
Weighted average number of shares outstanding (in shares)	100,698,124	100,323,736
Net loss per share, Basic (in dollars per share)	$ (0.03)	$ (0.03)
Diluted:
Weighted average number of shares outstanding (in shares)	100,698,124	100,323,736
Net loss per share, Diluted (in dollars per share)	$ (0.03)	$ (0.03)

UNAUDITED CONSOLIDATED STATEM_2

UNAUDITED CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Accumulated Deficit [Member]	Total
Balances, beginning of period at Dec. 31, 2018	$ 456,938	$ (435,684)	$ 21,254
Balances, beginning of period (in shares) at Dec. 31, 2018	100,268,161
Shares issued (RSUs vested, net of shares withheld) (Note 6)	$ (46)		(46)
Shares issued (RSUs vested, net of shares withheld) (Note 6) (in shares)	142,380
Shares issued (exercise of stock options)	$ 66		66
Shares issued (exercise of stock options) (in shares)	127,000
Stock-based compensation (Note 6)	$ 51		51
Net loss		(2,652)	(2,652)
Balances, end of period at Mar. 31, 2019	$ 457,009	(438,336)	18,673
Balances, end of period (in shares) at Mar. 31, 2019	100,537,541
Balances, beginning of period at Dec. 31, 2018	$ 456,938	(435,684)	$ 21,254
Balances, beginning of period (in shares) at Dec. 31, 2018	100,268,161
Shares issued (exercise of stock options) (in shares)			163,667
Balances, end of period at Dec. 31, 2019	$ 457,716	(445,070)	$ 12,646
Balances, end of period (in shares) at Dec. 31, 2019	100,698,124
Stock-based compensation (Note 6)	$ 390		390
Net loss		(3,500)	(3,500)
Balances, end of period at Mar. 31, 2020	$ 458,106	$ (448,570)	$ 9,536
Balances, end of period (in shares) at Mar. 31, 2020	100,698,124

UNAUDITED CONSOLIDATED STATEM_3

UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net loss	$ (3,500)	$ (2,652)
Adjustments to reconcile net loss for the period to net cash used in operations:
Depreciation and amortization	12	12
Stock-based compensation	390	51
Loss on other investments	1,129	624
Change in working capital account items:
Other current assets	146	70
Accounts payable, accrued liabilities and other	80	137
Net cash used in operating activities	(1,743)	(1,758)
Cash flows from investing activities:
Proceeds from sales of marketable securities	300
Disposition of short-term investments, net of acquisitions	2,299	985
Additions to plant and equipment		(40)
Proceeds from option/sale agreements, net		100
Net cash provided by investing activities	2,599	1,045
Cash flows from financing activities:
Payment of taxes from withheld shares		(46)
Proceeds from exercise of stock options		66
Net cash provided by financing activities		20
Net increase (decrease) in cash and cash equivalents	856	(693)
Cash and cash equivalents, beginning of period	1,408	1,071
Cash and cash equivalents, end of period	$ 2,264	$ 378

Nature of Operations and Basis

Nature of Operations and Basis of Presentation	3 Months Ended
	Mar. 31, 2020
Nature of Operations and Basis of Presentation
Nature of Operations and Basis of Presentation	VISTA GOLD CORP. NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Dollar amounts in U.S. dollars and in thousands, except share amounts and per ounce amounts) 1. Nature of Operations and Basis Vista Gold Corp. and its subsidiaries (collectively, “Vista,” the “Company,” “we,” “our,” or “us”) operate in the gold mining industry. We are focused on evaluation, acquisition, exploration and advancement of gold exploration and potential development projects, which may lead to gold production or value adding strategic transactions such as earn-in right agreements, option agreements, leases to third parties, joint venture arrangements with other mining companies, or outright sales of assets for cash and/or other consideration. We look for opportunities to improve the value of our gold projects through exploration drilling and/or technical studies focused on optimizing previous engineering work. We do not currently generate cash flows from mining operations. The Company’s flagship asset is its 100% owned Mt Todd gold project (“Mt Todd” or the “Project”) in Northern Territory, Australia. Mt Todd is the largest undeveloped gold project in Australia. We have invested substantial amounts to evaluate, engineer, permit and de-risk the Project. We believe these efforts have added to the underlying value of the Project and demonstrate strong development potential. In September 2019, Vista announced the positive results of an updated preliminary feasibility study (the “2019 PFS”) for Mt Todd. Process improvements reflected in the 2019 PFS include improved estimated gold recovery and increased estimated gold production at Mt Todd. As of March 31, 2020, the Company held 6.2 million common shares of Midas Gold Corp. (“Midas Gold Shares”), a non-core project in Mexico subject to a third-party option agreement, royalty interests in the United States and Indonesia, mill equipment not in use and listed for sale, and miscellaneous holdings of third-party equity securities. The interim Condensed Consolidated Financial Statements (“interim statements”) of the Company are unaudited. In the opinion of management, all adjustments and disclosures necessary for a fair presentation of these interim statements have been included. The results reported in these interim statements are not necessarily indicative of the results that may be reported for the entire year. These interim statements should be read in conjunction with the Company’s Consolidated Financial Statements for the year ended December 31, 2019 as filed with the United States Securities and Exchange Commission and Canadian securities regulatory authorities on Form 10-K (the “2019 Financial Statements”). The year-end balance sheet data was derived from audited financial statements and, in accordance with the instructions to Form 10-Q, certain information and footnote disclosures required by United States generally accepted accounting principles have been condensed or omitted. References to $ are to United States dollars and A$ are to Australian dollars.

Significant Accounting Policies

Significant Accounting Policies	3 Months Ended
	Mar. 31, 2020
Significant Accounting Policies
Significant Accounting Policies	2. Significant Accounting Policies Significant accounting policies are included in the 2019 Financial Statements.

Short-term and Other Investment

Short-term and Other Investments	3 Months Ended
	Mar. 31, 2020
Short-term and Other Investments
Short-term and Other Investments	3. Short-term and Other Investments Short-term investments As of March 31, 2020, and December 31, 2019, the amortized cost basis of our short-term investments was $961 and $3,260, respectively. The amortized cost basis approximates fair value at March 31, 2020 and December 31, 2019. Short-term investments at March 31, 2020 and December 31, 2019 were comprised of U.S. and Australian government treasury bills and/or notes, all of which had maturity dates on the date of purchase greater than 90 days but less than one year. Investments with maturity dates of 90 days or less are included in cash and cash equivalents. Other investments The Company’s investments in Midas Gold Shares and Nusantara Resources Limited shares (“Nusantara Shares”) were recorded at fair value in the Condensed Consolidated Balance Sheets. Subsequent changes in fair value are recorded in the Condensed Consolidated Statements of Comprehensive Income/(Loss) in the period in which they occur. As of March 31, 2020, and December 31, 2019, the Company held 6,240,115 and 6,882,115 shares of Midas Gold, respectively. The Company also held 1,333,334 Nusantara Shares as of March 31, 2020 and December 31, 2019. The value of other investments was $2,247 and $3,676 as of March 31, 2020 and December 31, 2019, respectively. During the three months ended March 31, 2020, the Company sold 642,000 Midas Gold Shares for net proceeds of $300 and a loss of $15 compared to the most recent measurement period. Cumulative realized loss since acquisition of these Midas Gold Shares was $2,577, of which $2,562 was recognized in previous periods as unrealized loss, net. No Midas Gold Shares were sold during the three months ended March 31, 2019.

Mineral Properties

Mineral Properties	3 Months Ended
	Mar. 31, 2020
Mineral Properties
Mineral Properties	4. Mineral Properties At March 31, 2020 At December 31, 2019 Mt Todd, Australia $ 2,146 $ 2,146 The Company holds the Guadalupe de los Reyes gold and silver project in Sinaloa, Mexico (“Los Reyes”), which is under an option agreement with Prime Mining Corporation (“Prime Mining”). Prime Mining has a final $1,500 option payment remaining under the option agreement, which is due by October 2021. The $4,500 paid to date under the option agreement eliminated our carrying value in the property and the remaining amount is carried as a deferred option gain. Upon receiving the final option payment, the Company will transfer control of the Los Reyes project to Prime Mining. The Company will retain a capped net smelter return royalty and may assume a partial interest in any underground projects developed at Los Reyes. Vista holds a net smelter return royalty (“NSR”) on the Awak Mas project in Indonesia. During 2019, Vista and the holder of Awak Mas amended the original royalty agreement to allow the holder or a nominated party to make a $2,400 payment to Vista by April 30, 2020 to cancel a 1% NSR on the first 1,250,000 ounces produced at Awak Mas and a 1.25% NSR on the next 1,250,000 ounces produced. The due date for this payment was subsequently amended to May 8, 2020. On April 29, 2020, the holder provided notice to Vista to exercise the option to cancel the related 1% NSR and 1.25% NSR upon making a $2,400 payment, which is required to be made to the Company by May 8, 2020. Upon receipt of the $2,400 payment, the holder or a nominated party will then have the right to cancel the remaining 1% NSR and 1.25% NSR for an additional payment of $2,500 by April 30, 2021. If the holder does not make the $2,400 payment by May 8, 2020, Vista will retain the full royalty interests.

Plant And Equipment

Plant And Equipment	3 Months Ended
	Mar. 31, 2020
Plant and Equipment
Plant And Equipment	5. Plant and Equipment March 31, 2020 December 31, 2019 Accumulated Accumulated Cost depreciation Net Cost depreciation Net Mt Todd, Australia $ 5,237 $ 5,126 $ 111 $ 5,237 $ 5,114 $ 123 Corporate, United States 333 333 — 333 333 — Used mill equipment, Canada 5,500 — 5,500 5,500 — 5,500 $ 11,070 $ 5,459 $ 5,611 $ 11,070 $ 5,447 $ 5,623

Common Shares

Common Shares	3 Months Ended
	Mar. 31, 2020
Common Shares
Common Shares	6. Common Shares Warrants All outstanding warrants totaling 6,514,625 expired unexercised in August 2019. Stock-Based Compensation The Company’s stock-based compensation plans include: restricted share units (“RSUs”) currently outstanding under the Company’s long term equity incentive plan (“LTIP”), deferred share units (“DSUs”) issuable pursuant to the Company’s deferred share unit plan (“DSU Plan”) and stock options (“Stock Options”) issuable under the Company’s stock option plan (the “Plan”). Stock-based compensation may be issued to our directors, officers, employees and consultants. The maximum number of Common Shares that may be reserved for issuance under these stock-based compensation plans is a variable number equal to 10% of the issued and outstanding Common Shares on a non-diluted basis at any one time. Vista also issued phantom units in 2018 to be settled in cash. Stock-based compensation and phantom units may be granted from time to time at the discretion of the Board of Directors of the Company (the “Board”), with vesting provisions as determined by the Board. Stock-based compensation expense for the three months ended March 31, 2020 and 2019 was: Three Months Ended March 31, 2020 2019 Restricted share units 151 1 Deferred share units 209 — Stock Options $ 30 $ 50 $ 390 $ 51 Phantom units $ (1) $ 22 As of March 31, 2020, unrecognized compensation expense for RSUs, Stock Options, and phantom units was $776, $24, and $42, respectively, which is expected to be recognized over weighted average periods of 1.5, 0.6, and 0.8 years, respectively. Restricted Share Units The following table summarizes the RSUs outstanding under the LTIP as of March 31, 2020: Weighted average Number grant-date fair of RSUs value per RSU Unvested - December 31, 2018 1,002,670 $ 0.78 Granted 1,412,500 0.49 Cancelled/forfeited (657,573) 0.76 Vested, net of shares withheld (266,296) 0.84 Unvested - December 31, 2019 1,491,301 $ 0.51 Granted 1,609,000 0.41 Unvested - March 31, 2020 3,100,301 $ 0.46 No RSU vesting events occurred during the three months ended March 31, 2020. During the three months ended March 31, 2019, the Company withheld Common Shares with an equivalent value to meet employee withholding tax obligations that resulted upon vesting of RSUs during the period. Common Shares withheld are considered cancelled/forfeited. Deferred Share Units The DSU Plan provides for granting of DSUs to non-employee directors. DSUs vest immediately, however the Company will issue one Common Share for each DSU only after the non-employee director has ceased to be a director of the Company. During the three months ended March 31, 2020, the Board granted 360,000 DSUs and the Company recognized $209 in DSU expense. The following table summarizes the DSUs outstanding as of March 31, 2020: Weighted average Number of grant-date fair DSUs value per DSU Unvested - December 31, 2018 — — Granted 366,000 0.57 Outstanding - December 31, 2019 366,000 0.57 Granted 360,000 0.58 Outstanding - March 31, 2020 726,000 0.57 Stock Options A summary of stock options as of March 31, 2020 is set forth in the following table: Weighted average Weighted average remaining Aggregate Number of exercise price contractual term intrinsic options per option (years) value Outstanding - December 31, 2018 1,319,149 0.71 3.84 $ 1 Granted 350,000 0.73 Exercised (163,667) 0.54 33 Cancelled/Forfeited (16,667) 0.75 — Expired (51,815) 0.70 2 Outstanding - December 31, 2019 1,437,000 $ 0.73 3.49 $ 35 Cancelled/Forfeited (70,000) 1.02 — Outstanding - March 31, 2020 1,367,000 $ 0.72 3.31 $ — Exercisable - March 31, 2020 1,103,001 $ 0.72 3.18 $ — A summary of unvested stock options as of March 31, 2020 is set forth in the following table: Weighted Weighted average average remaining grant-date amortization Number of fair value period options per option (years) Unvested - December 31, 2018 759,669 $ 0.45 1.14 Granted 350,000 0.30 Cancelled/Forfeited (35,000) 0.43 Vested (560,665) 0.41 Unvested - December 31, 2019 514,004 $ 0.40 0.61 Vested (250,005) 0.48 Unvested - March 31, 2020 263,999 $ 0.32 0.58 The fair value of stock options granted is estimated at the grant date using the Black-Scholes option pricing model. No option grants were made during the three months ended March 31, 2020. Phantom Units A summary of unvested phantom units as of March 31, 2020 is set forth in the following table: Weighted average remaining Number of vesting term phantom units (years) Unvested - December 31, 2018 265,000 Cancelled/forfeited (32,667) Vested (88,333) Unvested - December 31, 2019 144,000 1.00 Unvested - March 31, 2020 144,000 0.75

Provision for Environmental Lia

Provision for Environmental Liability	3 Months Ended
	Mar. 31, 2020
Provision for Environmental Liability
Provision for Environmental Liability	7. Provision for Environmental Liability Vista maintains a $240 provision for reclamation costs attributable to certain mining claims previously held by the Company should no other potentially responsible parties be identified.

Commitments And Contingencies

Commitments And Contingencies	3 Months Ended
	Mar. 31, 2020
Commitments And Contingencies
Commitments And Contingencies	8. Commitments and Contingencies Our exploration and development activities are subject to various laws and regulations governing the protection of the environment. These laws and regulations are continually changing and are generally becoming more restrictive. As such, future expenditures that may be required for compliance with these laws and regulations cannot be predicted. We conduct our operations in an effort to minimize effects on the environment and believe our operations are in compliance with applicable laws and regulations in all material respects. Under our agreement with the Jawoyn Association Aboriginal Corporation (the “JAAC”), the JAAC will be entitled to an annual cash payment, or payment in kind, equal to 1% of the value of the annual gold production from the current mining licenses, and a 1% NSR on other metals, subject to a minimum payment of A$50 per year. In addition, our agreement requires that we offer the JAAC the opportunity to establish a joint venture with Vista holding a 90% participating interest and the JAAC holding a 10% participating interest in Mt Todd.

Fair Value Accounting

Fair Value Accounting	3 Months Ended
	Mar. 31, 2020
Fair Value Accounting
Fair Value Accounting	9. Fair Value Accounting The following table sets forth the Company’s assets measured at fair value by level within the fair value hierarchy. As required by accounting guidance, assets are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Fair value at March 31, 2020 Total Level 1 Level 3 Other investments $ 2,247 $ 2,247 $ — Fair value at December 31, 2019 Total Level 1 Level 3 Other investments $ 3,676 $ 3,676 $ — Our investment in Midas Gold Shares and Nusantara Shares shares are classified as Level 1 of the fair value hierarchy as they are valued at quoted market prices in an active market. There have been no transfers between levels in 2020, nor have there been any changes in valuation techniques.

Geographic and Segment informat

Geographic and Segment information	3 Months Ended
	Mar. 31, 2020
Geographic and Segment information
Geographic And Segment Information	10. Geographic and Segment Information The Company has one reportable operating segment. We evaluate, acquire, explore and advance gold exploration and potential development projects, which may lead to gold production or value adding strategic transactions. These activities are currently focused principally in Australia. We reported no revenues during the three months ended March 31, 2020 and 2019. Geographic location of mineral properties and plant and equipment is provided in Notes 4 and 5, respectively.

Mineral Properties (Tables)

Mineral Properties (Tables)	3 Months Ended
	Mar. 31, 2020
Mineral Properties
Schedule of Mineral Properties	At March 31, 2020 At December 31, 2019 Mt Todd, Australia $ 2,146 $ 2,146

Plant and Equipment (Tables)

Plant and Equipment (Tables)	3 Months Ended
	Mar. 31, 2020
Plant and Equipment
Schedule Of Plant And Equipment	March 31, 2020 December 31, 2019 Accumulated Accumulated Cost depreciation Net Cost depreciation Net Mt Todd, Australia $ 5,237 $ 5,126 $ 111 $ 5,237 $ 5,114 $ 123 Corporate, United States 333 333 — 333 333 — Used mill equipment, Canada 5,500 — 5,500 5,500 — 5,500 $ 11,070 $ 5,459 $ 5,611 $ 11,070 $ 5,447 $ 5,623

Common Shares (Tables)

Common Shares (Tables)	3 Months Ended
	Mar. 31, 2020
Common Shares
Summary of stock-based compensation expense	Three Months Ended March 31, 2020 2019 Restricted share units 151 1 Deferred share units 209 — Stock Options $ 30 $ 50 $ 390 $ 51 Phantom units $ (1) $ 22
Summary of restricted stock unit activity	Weighted average Number grant-date fair of RSUs value per RSU Unvested - December 31, 2018 1,002,670 $ 0.78 Granted 1,412,500 0.49 Cancelled/forfeited (657,573) 0.76 Vested, net of shares withheld (266,296) 0.84 Unvested - December 31, 2019 1,491,301 $ 0.51 Granted 1,609,000 0.41 Unvested - March 31, 2020 3,100,301 $ 0.46
Summary of deferred stock units	Weighted average Number of grant-date fair DSUs value per DSU Unvested - December 31, 2018 — — Granted 366,000 0.57 Outstanding - December 31, 2019 366,000 0.57 Granted 360,000 0.58 Outstanding - March 31, 2020 726,000 0.57
Summary of option activity	Weighted average Weighted average remaining Aggregate Number of exercise price contractual term intrinsic options per option (years) value Outstanding - December 31, 2018 1,319,149 0.71 3.84 $ 1 Granted 350,000 0.73 Exercised (163,667) 0.54 33 Cancelled/Forfeited (16,667) 0.75 — Expired (51,815) 0.70 2 Outstanding - December 31, 2019 1,437,000 $ 0.73 3.49 $ 35 Cancelled/Forfeited (70,000) 1.02 — Outstanding - March 31, 2020 1,367,000 $ 0.72 3.31 $ — Exercisable - March 31, 2020 1,103,001 $ 0.72 3.18 $ —
Summary of the status of unvested stock options	Weighted Weighted average average remaining grant-date amortization Number of fair value period options per option (years) Unvested - December 31, 2018 759,669 $ 0.45 1.14 Granted 350,000 0.30 Cancelled/Forfeited (35,000) 0.43 Vested (560,665) 0.41 Unvested - December 31, 2019 514,004 $ 0.40 0.61 Vested (250,005) 0.48 Unvested - March 31, 2020 263,999 $ 0.32 0.58
Summary of phantom units	Weighted average remaining Number of vesting term phantom units (years) Unvested - December 31, 2018 265,000 Cancelled/forfeited (32,667) Vested (88,333) Unvested - December 31, 2019 144,000 1.00 Unvested - March 31, 2020 144,000 0.75

Fair Value Accounting (Tables)

Fair Value Accounting (Tables)	3 Months Ended
	Mar. 31, 2020
Fair Value Accounting
Schedule of assets measured at fair value	Fair value at March 31, 2020 Total Level 1 Level 3 Other investments $ 2,247 $ 2,247 $ — Fair value at December 31, 2019 Total Level 1 Level 3 Other investments $ 3,676 $ 3,676 $ —

Nature of Operations (Details)

Nature of Operations (Details) - shares	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Midas Gold Shares [Member]
Property, Plant and Equipment [Line Items]
Shares owned	6,240,115	6,882,115
Mt Todd, Australia
Property, Plant and Equipment [Line Items]
Percentage of ownership in project	100.00%

Short-term and Other Investme_2

Short-term and Other Investments - Short-term (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Short-term investments
Available-for-sale Debt Securities, Amortized Cost Basis	$ 961	$ 3,260

Short-term and Other Investme_3

Short-term and Other Investments - Other Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Other Investments
Proceeds from Sale and Maturity of Marketable Securities	$ 300
Other investments, at fair value	$ 2,247		$ 3,676
Midas Gold Shares [Member]
Other Investments
Shares owned	6,240,115		6,882,115
Marketable Securities Cumulative Gain (Loss)	$ (2,577)		$ (2,562)
Number Marketable Securities Sold	642,000,000	0
Proceeds from Sale and Maturity of Marketable Securities	$ 300
Marketable Securities, Realized Gain (Loss)	$ (15)
Nusantara Resources
Other Investments
Shares owned	1,333,334		1,333,334

Mineral Properties - Properties

Mineral Properties - Properties (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Mineral Properties, Net	$ 2,146	$ 2,146
Mt Todd, Australia
Property, Plant and Equipment [Line Items]
Mineral Properties, Net	$ 2,146	$ 2,146

Mineral Properties - Guadalupe

Mineral Properties - Guadalupe (Details) - Guadalupe De Los Reyes, Mexico - Option Agreement Two - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Oct. 31, 2017	Mar. 31, 2020
Property, Plant and Equipment [Line Items]
Aggregate Payments Received To Date Of Sale Price Of Gold Project		$ 4,500
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-31 | Before Four Year Anniversary
Property, Plant and Equipment [Line Items]
Sale price of gold/silver project	$ 1,500

Mineral Properties - Awak Mas (

Mineral Properties - Awak Mas (Details) - PT Masmindo Dwi Area - Awak Mas - USD ($) $ in Thousands	Nov. 01, 2019	Mar. 31, 2020
First 1,250,000 Ounces Produced
Property, Plant and Equipment [Line Items]
NSR Royalty Cancellation, Percentage	1.00%
Remaining NSR Royalty Cancellation, Percentage	1.00%
Next 1,250,000 Ounces Produced
Property, Plant and Equipment [Line Items]
NSR Royalty Cancellation, Percentage	1.25%
Remaining NSR Royalty Cancellation, Percentage	1.25%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-20 | First 1,250,000 Ounces Produced
Property, Plant and Equipment [Line Items]
NSR Cancellation Proceeds	$ 2,400
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-05-08 | First 1,250,000 Ounces Produced
Property, Plant and Equipment [Line Items]
NSR Cancellation Proceeds		$ 2,400
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-30
Property, Plant and Equipment [Line Items]
NSR Cancellation Proceeds	$ 2,500

Plant and Equipment (Details)

Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Cost	$ 11,070	$ 11,070
Accumulated depreciation	5,459	5,447
Net	5,611	5,623
Mt Todd, Australia
Property, Plant and Equipment [Line Items]
Cost	5,237	5,237
Accumulated depreciation	5,126	5,114
Net	111	123
Corporate, United States
Property, Plant and Equipment [Line Items]
Cost	333	333
Accumulated depreciation	333	333
Used mill equipment, Canada
Property, Plant and Equipment [Line Items]
Cost	5,500	5,500
Net	$ 5,500	$ 5,500

Common Shares - Warrants (Detai

Common Shares - Warrants (Details)	1 Months Ended
	Aug. 31, 2019shares
Common Shares
Class Of Warrant Or Right, Remaining, Expired	6,514,625

Common Shares - Stock-Based Com

Common Shares - Stock-Based Compensation (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	May 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of issued and outstanding Common Shares		10.00%
Stock-based compensation expense		$ 390	$ 51
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		30	50
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		151	1
Deferred Stock Units (DSU) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 209	209
Phantom Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ (1)	$ 22

Common Shares - Unrecognized Co

Common Shares - Unrecognized Compensation (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to stock options	$ 24
Weighted average unrecognized compensation recognition period	7 months 6 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to unvested awards	$ 776
Weighted average unrecognized compensation recognition period	1 year 6 months
Phantom Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to unvested awards	$ 42
Weighted average unrecognized compensation recognition period	9 months 18 days

Common Shares - Summary Of Rest

Common Shares - Summary Of Restricted Stock Units Activity (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested, Number of units, beginning of period (in shares)	1,491,301	1,002,670
Granted, Number of units (in shares)	1,609,000	1,412,500
Cancelled/forfeited, Number of units (in shares)		(657,573)
Vested, net of shares withheld, Number of units (in shares)		(266,296)
Unvested, Number of units, end of period (in shares)	3,100,301	1,491,301
Unvested, weighted average fair value, beginning of year (in dollars per share)	$ 0.51	$ 0.78
Granted, Weighted average fair value (in dollars per share)	0.41	0.49
Cancelled/forfeited, Weighted average fair value (in dollars per share)		0.76
Vested, Weighted average fair value (in dollars per share)		0.84
Unvested, weighted average fair value, end of year (in dollars per share)	$ 0.46	$ 0.51

Common Shares - Summary Of Defe

Common Shares - Summary Of Deferred Share Units Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	May 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense		$ 390	$ 51
Deferred Stock Units (DSU) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested, Number of units, beginning of period (in shares)		366,000
Granted, Number of units (in shares)	360,000	360,000		366,000
Unvested, Number of units, end of period (in shares)		726,000		366,000
Unvested, weighted average fair value, beginning of year (in dollars per share)		$ 0.57
Granted, Weighted average fair value (in dollars per share)		0.58		$ 0.57
Unvested, weighted average fair value, end of year (in dollars per share)		$ 0.57		$ 0.57
Allocated Share-based Compensation Expense	$ 209	$ 209

Common Shares - Summary Of Opti

Common Shares - Summary Of Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Common Shares
Number of options, beginning of period (in shares)	1,437,000	1,319,149
Granted, Number of options (in shares)	0	350,000
Number of options, Exercised (in shares)		(163,667)
Number of options, Cancelled/Forfeited (in shares)	(70,000)	(16,667)
Number of options, Expired (in shares)		(51,815)
Number of options, end of period (in shares)	1,367,000	1,437,000	1,319,149
Number of options, Exercisable (in shares)	1,103,001
Weighted average exercise price per option, beginning of period (in dollars per share)	$ 0.73	$ 0.71
Weighted average exercise price per option, Granted (in dollars per share)		0.73
Weighted average exercise price per option, Exercised (in dollars per share)		0.54
Weighted average exercise price per option, Cancelled/Forfeited (in dollars per share)	1.02	0.75
Weighted average exercise price per option, Expired (in dollars per share)		0.70
Weighted average exercise price per option, end of period (in dollars per share)	0.72	$ 0.73	$ 0.71
Weighted average exercise price, Exercisable (in dollars per share)	$ 0.72
Weighted average remaining contractual term, Outstanding	3 years 3 months 22 days	3 years 5 months 27 days	3 years 10 months 2 days
Weighted average remaining contractual term, Exercisable	3 years 2 months 5 days
Aggregate intrinsic value, Outstanding, beginning of period (in dollars)	$ 35	$ 1
Aggregate intrinsic value, Exercised (in dollars)		33
Aggregate intrinsic value, Expired (in dollars)		2
Aggregate intrinsic value, Outstanding, end of period (in dollars)		$ 35	$ 1

Common Shares - Summary Of The

Common Shares - Summary Of The Status Of Unvested Stock Options (Details) - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, Number of options (in shares)	0	350,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested, Number of options, beginning of period (in shares)	514,004	759,669
Granted, Number of options (in shares)		350,000
Cancelled/Forfeited, Number of options (in shares)		(35,000)
Vested, Number of options (in shares)	(250,005)	(560,665)
Unvested, Number of options, end of period (in shares)	263,999	514,004	759,669
Unvested, Weighted average grant date fair value, beginning of period (in dollars per share)	$ 0.40	$ 0.45
Granted, Weighted average grant-date fair value per option (in dollars per share)		0.30
Cancelled/Forfeited, Weighted average grant-date fair value per option (in dollars per share)		0.43
Vested, Weighted average grant-date fair value per option (in dollars per share)	0.48	0.41
Unvested, Weighted average grant date fair value per option, end of period (in dollars per share)	$ 0.32	$ 0.40	$ 0.45
Weighted average remaining amortization period	6 months 29 days	7 months 10 days	1 year 1 month 21 days

Common Shares - Summary Of Phan

Common Shares - Summary Of Phantom Units Activity (Details) - Phantom Share Units (PSUs) - shares	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested, Number of units, beginning of period (in shares)	144,000	265,000
Cancelled/forfeited, Number of units (in shares)		(32,667)
Vested, net of shares withheld, Number of units (in shares)		(88,333)
Unvested, Number of units, end of period (in shares)	144,000	144,000
Weighted average remaining contractual term	9 months	1 year

Provision for Environmental L_2

Provision for Environmental Liability (Details) $ in Thousands	Mar. 31, 2020USD ($)
Provision for Environmental Liability
Mine Reclamation and Closing Liability, Noncurrent	$ 240

Commitments And Contingencies (

Commitments And Contingencies (Details) - Mt Todd, Australia $ in Thousands	3 Months Ended
	Mar. 31, 2020AUD ($)
Loss Contingencies [Line Items]
Percentage of ownership in project	100.00%
Scenario, Plan
Loss Contingencies [Line Items]
Percentage of ownership in project	90.00%
Scenario, Plan | Jawoyn Association Aboriginal Corporation
Loss Contingencies [Line Items]
Percentage of ownership in project	10.00%
Percentage of royalty on gold	1.00%
Percentage of royalty on other metals	1.00%
Minimum payment per year	$ 50

Fair Value Accounting (Details)

Fair Value Accounting (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fair Value Accounting
Other investments, at fair value	$ 2,247	$ 3,676
Fair Value Transfers Between Levels	0
Recurring | Midas Gold Shares [Member]
Fair Value Accounting
Other investments, at fair value	2,247	3,676
Recurring | Fair Value, Inputs, Level 1 [Member] | Midas Gold Shares [Member]
Fair Value Accounting
Other investments, at fair value	$ 2,247	$ 3,676

Geographic And Segment Inform_2

Geographic And Segment Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020USD ($)segment	Mar. 31, 2019USD ($)
Geographic and Segment information
Number of reportable segments | segment	1
Revenues | $	$ 0	$ 0