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Note 2 - Significant Accounting Policies (Details Textual) - USD ($)

3 Months Ended

6 Months Ended

Jun. 30, 2025

Jun. 30, 2024

^[2]

Jun. 30, 2025

Jun. 30, 2024

^[2]

Gain (Loss) from Litigation Settlement

^[1]

$ 0

$ 86,528

$ 0

$ 86,528

Shares Prescribed Aggregation (in shares)

50,000

50,000

[1]	Represents a payment received from a class action settlement related to gold.
[2]	Includes a payment received from a class action settlement related to gold of $86,528.

X

- Definition

Prescribed aggregation at which shares are issued and redeemed.

+ References

No definition available.

+ Details

Name:	iau_SharesPrescribedAggregation
Namespace Prefix:	iau_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 48
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482785/280-10-55-48

+ Details

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