Note 4 - GLDM Expenses (Details Textual)	5 Months Ended	6 Months Ended	49 Months Ended
Feb. 22, 2022	Mar. 31, 2026	Mar. 31, 2026
Sponsor fee	0.18%	0.10%	0.10%
SPDR Gold Mini Shares Trust [Member]
Sponsor fee	0.18%	0.10%	0.10%

Rate for management and service fees under arrangement to manage operations, including, but not limited to, investment.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration