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Note 6 - Exploration and Evaluation Assets - Acquisition of Project (Details) (Parentheticals) - shares	Mar. 02, 2020	Dec. 02, 2019
Yarumalito gold project [member]
Statement Line Items [Line Items]
Shares (in shares)		1,118,359
Almaden gold project [member]
Statement Line Items [Line Items]
Shares (in shares)	337,619

X

- Definition

The number of common shares issued for acquisition of project.

+ References

No definition available.

+ Details

Name:	gldg_CommonSharesIssuedForAcquisitionOfProject
Namespace Prefix:	gldg_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	gldg_StatementLineItems
Namespace Prefix:	gldg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=gldg_YarumalitoGoldProjectMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=gldg_AlmadenGoldProjectMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: