Summary of Signifcant Accounting Policies (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Summary of Significant Accounting Policies
Capital losses available for tax purposes	$ 4,850,203	$ 3,174,901

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

No definition available.

Name:	pslv_IfrsTaxCreditCarryforwardAmount
Namespace Prefix:	pslv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant