XML 60 R52.htm IDEA: XBRL DOCUMENT v2.4.0.8

Subsequent Events (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended	1 Months Ended
	Oct. 31, 2013	Mar. 31, 2013	Jan. 31, 2014	Oct. 18, 2013	Sep. 30, 2013
Subsequent Events [Abstract]
Final Payment for Sale of Mineral Property			$ 6,000
Debt Instrument, Interest Rate, Stated Percentage		8.00%
Shares Issued as Debt Issuance Costs	486,382	125,798
Percentage Ownership Possible Through Earn In				62.50%	80.00%
Percentage of Mineral Property Sold				100.00%
Percentage Ownership of Mineral Property Retained			100.00%
Total Sales Price of Mineral Property Sold				13,000
Amount of First Payment on Sale of Mineral Properties				7,000
Payment of Debt Related to Sale				$ 3,000

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_SubsequentEventsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of the first payment to be received for the sale of mineral properties.

+ References

No definition available.

+ Details

Name:	vgz_AmountOfFirstPaymentOnSaleOfMineralProperties
Namespace Prefix:	vgz_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The final payment amount for the sale of a mineral property held by the company.

+ References

No definition available.

+ Details

Name:	vgz_FinalPaymentForSaleOfMineralProperty
Namespace Prefix:	vgz_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of a payment to reduce debt required by a debt agreement, which occurred due to the sale of assets.

+ References

No definition available.

+ Details

Name:	vgz_PaymentOfDebtRelatedToSale
Namespace Prefix:	vgz_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Percentage of ownership of a mineral property sold to a third party by the company.

+ References

No definition available.

+ Details

Name:	vgz_PercentageOfMineralPropertySold
Namespace Prefix:	vgz_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The percentage of ownership retained of a mineral property if all the sale conditions are not met.

+ References

No definition available.

+ Details

Name:	vgz_PercentageOwnershipOfMineralPropertyRetained
Namespace Prefix:	vgz_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The percentage ownership in a project that is possible for a third party to achieve through an earn-in agreement.

+ References

No definition available.

+ Details

Name:	vgz_PercentageOwnershipPossibleThroughEarnIn
Namespace Prefix:	vgz_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of shares of the entity issued as payment of debt issuance costs for debt incurred.

+ References

No definition available.

+ Details

Name:	vgz_SharesIssuedAsDebtIssuanceCosts
Namespace Prefix:	vgz_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The total price to be received for the sale of a mineral property by the company.

+ References

No definition available.

+ Details

Name:	vgz_TotalSalesPriceOfMineralPropertySold
Namespace Prefix:	vgz_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant