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Note 3 - Related Parties - Sponsor (Details Textual) |  | 5 Months Ended | 6 Months Ended | 49 Months Ended
--- | --- | --- | --- | ---
Feb. 23, 2022 | Feb. 22, 2022 | Mar. 31, 2026 USD ($) | Mar. 31, 2026
Sponsor fee |  | 0.18% | 0.10% | 0.10%
Maximum [Member] |  |  |  |
Legal Fees |  |  | $ 100,000 |
Sponsor [Member] | Reverse Stock Split [Member] |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio | 2 |  |  |
Stockholders' Equity, Reverse Stock Split |  |  |  | one-for-two reverse stock split of the Shares which now represent 1/50th of an ounce of gold
SPDR Gold Mini Shares Trust [Member] |  |  |  |
Sponsor fee |  | 0.18% | 0.10% | 0.10%
SPDR Gold Mini Shares Trust [Member] | Maximum [Member] |  |  |  |
Legal Fees |  |  | $ 100,000 |
SPDR Gold Mini Shares Trust [Member] | Sponsor [Member] | Reverse Stock Split [Member] |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio | 2 |  |  |
Stockholders' Equity, Reverse Stock Split |  |  |  | one-for-two reverse stock split of the Shares which now represent 1/50th of an ounce of gold

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