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Schedules of Investments (Unaudited) - Investments (Details) (Parentheticals)	Mar. 31, 2022	Dec. 31, 2021
Total investment, percentage of net asset value	100.01%	100.01%
Less liabilities, percentage of net asset value	(0.01%)	(0.01%)
Net assets, percentage of net asset value	100.00%	100.00%

X

- Definition

The percentage of net assets of net assets.

+ References

No definition available.

+ Details

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Namespace Prefix:	iaum_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Percent of net assets at close of period. For schedules of investments that are categorized, each category has a percent of net assets for the aggregated value of the Investments in the category.

+ References

Reference 1: 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 D))
-URI https://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=99383244&loc=d3e12121-115841

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

X

- Definition

The percent of net assets of non investment assets and liabilities. This represents the percentage difference between the investments, including long and short positions, and net assets.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Period Type:	instant