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Document And Entity Information
May 31, 2022
Document Information [Line Items]  
Entity, Registrant Name iShares® Gold Trust Micro
Document, Type 8-K
Document, Period End Date May 31, 2022
Entity, Incorporation, State or Country Code NY
Entity, File Number 001-40521
Entity, Tax Identification Number 83-6527686
Entity, Address, Address Line One 400 Howard Street
Entity, Address, City or Town San Francisco
Entity, Address, State or Province CA
Entity, Address, Postal Zip Code 94105
City Area Code 415
Local Phone Number 670-2000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Shares
Trading Symbol IAUM
Security Exchange Name NYSE
Entity, Emerging Growth Company true
Entity, Ex Transition Period true
Amendment Flag false
Entity, Central Index Key 0001759124