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Significant Accounting Policies (Details Narrative) - USD ($)
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Accounting Policies [Abstract]      
Percentage of silver held by sub-custodians 0.00%    
Silver receivable $ 0   $ 0
Silver payable $ 0   0
Minimum block of shares issued redeemed against silver 50,000    
Reserve for uncertain tax positions $ 0   0
Annualized rate of Sponsor's Fee before waiver 0.45%    
Expense ratio [1],[2] 0.30% 0.30%  
Maximum sponsor fee for legal expenses $ 100,000    
Sponsor's Fee 681,313 $ 283,484  
Sponsor fees waived 340,657 141,742  
Fees payable to Sponsor 226,771   $ 219,813
All other expenses $ 0 $ 0  
[1] Annualized for periods less than one year.
[2] The expense ratio is calculated net of the voluntary waiver (refer to Note 2.7). The Gross Expense Ratio is 0.45%.