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Note 3 - Trust Expenses (Details Textual) - USD ($)	3 Months Ended		9 Months Ended		72 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2027
Sponsors Fee Annualized Accrual Rate Based on Daily Net Asset Value			0.09%
Sponsor Fees Waived	$ 67,034	$ 45,677	$ 175,158	$ 147,290
Maximum [Member]
Legal Fees Per Year			$ 500,000
Maximum [Member] | Forecast [Member]
Sponsors Fee After Fee Waiver, Percentage					0.07%

X

- Definition

Maximum per annum in legal fees and expenses the sponsor has agreed to assume.

+ References

No definition available.

+ Details

Name:	iaum_LegalFeesPerYear
Namespace Prefix:	iaum_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of sponsor fees waived during period.

+ References

No definition available.

+ Details

Name:	iaum_SponsorFeesWaived
Namespace Prefix:	iaum_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The percentage of sponsor's fee after fee waiver.

+ References

No definition available.

+ Details

Name:	iaum_SponsorsFeeAfterFeeWaiverPercentage
Namespace Prefix:	iaum_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Annualized sponsor's fee rate accrued daily based on the net asset value of the trust.

+ References

No definition available.

+ Details

Name:	iaum_SponsorsFeeAnnualizedAccrualRateBasedOnDailyNetAssetValue
Namespace Prefix:	iaum_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: