XML 48 R16.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Research and Development Grant | 12 Months Ended
--- | ---
Dec. 31, 2015
Research and Development Grant |
Research and Development Grant | 10. Research and Development Grant During the year ended December 31, 2015, the Company received Research & Development (“R&D”) Tax Incentive payments totaling $10,220, net of costs to prepare and file. These amounts were paid under the Australian Government’s R&D Tax Incentive Program, a program designed to encourage industry to engage in R&D activities that benefit Australia; and relate to costs we incurred during the 2012 and 2013 fiscal years for qualifying R&D programs. This R&D Tax Incentive program is a self-assessment process, and as such, the Australian Government has the right to review the qualifying programs and expenditures for a period of four years. No similar trans actions occurred in 2014.

X
- References No definition available. + Details
Name: | us-gaap_IncomeTaxReconciliationTaxCreditsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for government grants for research and development activities. + References No definition available. + Details
Name: | vgz_ResearchAndDevelopmentGrantTextBlock
Namespace Prefix: | vgz_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration