XML 133 R30.htm IDEA: XBRL DOCUMENT v3.22.0.1

Other Investments - Summary (Details) $ in Thousands		12 Months Ended
	Oct. 06, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($) shares	Sep. 22, 2021 $ / shares
Other Investments
Proceeds from Sale and Maturity of Marketable Securities		$ 339	$ 5,788
Fair value at beginning of period		293	3,676
Realized gain		46	2,405
Fair value at end of period		0	293
Midas Gold Shares [Member]
Other Investments
Marketable Securities Cumulative Gain (Loss)			(11,841)
Marketable Securities Cumulative Gain (Loss), Recognized As Unrealized In Previous Periods			(14,415)
Proceeds from Sale and Maturity of Marketable Securities			5,788
Marketable Securities, Realized Gain (Loss)			2,574
Realized change		0	$ (5,788)
Nusantara Resources
Other Investments
Shares owned | shares			1,333,334
Proceeds from Sale and Maturity of Marketable Securities	$ 339
Realized change		$ (339)	$ 0
Nusantara Resources
Other Investments
Sale of Stock, Price Per Share | $ / shares				$ 0.35

X

- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740

+ Details

Name:	us-gaap_EquitySecuritiesFvNi
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Balance held at close of period in number of shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section 50
-Paragraph 6
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-12B(Column B))
-URI http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010

+ Details

Name:	us-gaap_InvestmentOwnedBalanceShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of realized gain (loss) on investment in marketable security, including other-than-temporary impairment (OTTI).

+ References

No definition available.

+ Details

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

X

- Definition

The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	vgz_DebtAndEquitySecuritiesFvNiLineItems
Namespace Prefix:	vgz_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Equity Securities Fv Ni, Realized Change In Fair Value

+ References

No definition available.

+ Details

Name:	vgz_EquitySecuritiesFvNiRealizedChangeInFairValue
Namespace Prefix:	vgz_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of equity securities fvni realized gain in fair value.

+ References

No definition available.

+ Details

Name:	vgz_EquitySecuritiesFvniRealizedGainInFairValue
Namespace Prefix:	vgz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Cumulative gain (loss) on marketable securities.

+ References

No definition available.

+ Details

Name:	vgz_MarketableSecuritiesCumulativeGainLoss
Namespace Prefix:	vgz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Cumulative gain (loss) on marketable securities, recognized in previous periods as unrealized.

+ References

No definition available.

+ Details

Name:	vgz_MarketableSecuritiesCumulativeGainLossRecognizedAsUnrealizedInPreviousPeriods
Namespace Prefix:	vgz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=vgz_MidasGoldSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=vgz_NusantaraResourcesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=vgz_NusantaraResourcesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: