XML 87 R57.htm IDEA: XBRL DOCUMENT v3.6.0.2

Supplemental Cash Flow Information and Material Non-Cash Transactions (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2014 USD ($)
Two Thousand Thirteen Facility [Member]
Interest Paid	$ 78

X

- Definition

The amount of cash paid for interest during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585

+ Details

Name:	us-gaap_InterestPaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_DebtInstrumentAxis=vgz_TwoThousandThirteenFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: