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Debt | 12 Months Ended
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Dec. 31, 2014
Debt Disclosure [Abstract] |
Debt Disclosure [Text Block] | 8. Debt During March 2013, the Company entered into a credit agreement with Sprott Resources Lending Partnership (the “Lender”) for purposes of establishing a C$10,000 loan facility (the “2013 Facility”) ($9,637 proceeds net of transaction costs). The 2013 Facility bore an interest rate of 8% per annum, payable monthly and originally matured March 2014, with early repayment of the 2013 Facility allowed, at the Company’s option, provided that at least four months interest had been paid. In September 2013, the Company and the Lender agreed to extend the maturity date of the 2013 Facility to March 2015. In addition to interest, the 2013 Facility provided the Lender total fees of 3.5% of the 2013 Facility amount, including C$100 ($99) in cash and the issuance of 125,798 Vista common shares. As consideration for the extended maturity date, we paid the Lender an extension fee comprised of 486,382 Vista common shares. The 2013 Facility was secured by a general security agreement with certain exclusions. As additional security, the Company pledged all the Company’s Midas Gold Shares (Note 4). During October 2013, in accordance with the terms of the 2013 Facility, the Company repaid approximately $2,960 towards the 2013 Facility principal outstanding using proceeds from the Los Cardones sale (Note 5). During February 2014, in accordance with the terms of the 2013 Facility, t he Company repaid approximately $5,000 towards the 2013 Facility principal then outstanding using proceeds from the sale of Midas Gold Shares (Note 4). During March 2014, we repaid the outstanding principal balance of $1,3 44 in full.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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