Note 2 - Significant Accounting Policies (Details Textual)	Dec. 31, 2023 shares
Shares Prescribed Aggregation (in shares)	50,000

Prescribed aggregation at which shares are issued and redeemed.

No definition available.

Name:	slv_SharesPrescribedAggregation
Namespace Prefix:	slv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant