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Organization (Details) - shares			6 Months Ended
	Aug. 11, 2016	Aug. 10, 2016	Jun. 30, 2017
Organization [Abstract]
Minimum block of shares issued redeemed against silver	50,000	100,000	50,000
Basket of shares			50,000

X

- Definition

Issuance Of Shares, Basket Of Shares

+ References

No definition available.

+ Details

Name:	sivr_IssuanceOfSharesBasketOfShares
Namespace Prefix:	sivr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The minimum block of shares that can be created or redeemed against bullion deposits or distributions.

+ References

No definition available.

+ Details

Name:	sivr_MinimumBlockOfSharesIssuedRedeemedAgainstBullion
Namespace Prefix:	sivr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration