Nature of Operations and Basis of Presentation	6 Months Ended
Jun. 30, 2017
Nature Of Operations and Basis of Presentation [Abstract]
Nature of Operations and Basis of Presentation	1. Nature of Operations and Basis of Presentation Vista Gold Corp. and its subsidiaries (collectively, “Vista,” the “Company,” “we,” “our,” or “us”) operate in the gold mining industry. We are focused on the 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. The Company’s flagship asset is its 100% owned Mt Todd gold project (“Mt Todd”) in the Northern Territory (“NT”) Australia, where we are seeking approval of our final environmental authorization and evaluating potential material process improvements preparatory to an update of our Mt Todd Preliminary Feasibility Study (completed May 2013 and amended July 2014) (“PFS”). We also hold 4.3% of the outstanding common shares in the capital of Midas Gold Corp. (“Midas Gold Shares”), a non-core project in Mexico and royalty interests in the United States and Indonesia. 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, 2016 as filed with the United States Securities and Exchange Commission and Canadian securities regulatory authorities on February 22, 2017 on Form 10-K. The year-end balance sheet data was derived from the 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 C$ refer to Canadian currency, A$ to Australian currency and $ to United States currency.

1. Nature of Operations and Basis of Presentation

Vista Gold Corp. and its subsidiaries (collectively, “Vista,” the “Company,” “we,” “our,” or “us”) operate in the gold mining industry. We are focused on the 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.

The Company’s flagship asset is its 100% owned Mt Todd gold project (“Mt Todd”) in the Northern Territory (“NT”) Australia, where we are seeking approval of our final environmental authorization and evaluating potential material process improvements preparatory to an update of our Mt Todd Preliminary Feasibility Study (completed May 2013 and amended July 2014) (“PFS”). We also hold 4.3% of the outstanding common shares in the capital of Midas Gold Corp. (“Midas Gold Shares”), a non-core project in Mexico and royalty interests in the United States and Indonesia.

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, 2016 as filed with the United States Securities and Exchange Commission and Canadian securities regulatory authorities on February 22, 2017 on Form 10-K. The year-end balance sheet data was derived from the 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 C$ refer to Canadian currency, A$ to Australian currency and $ to United States currency.