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Significant Accounting Policies (Details Narrative) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Accounting Policies [Abstract]          
Percentage of silver held by sub-custodians 99.99%   99.99%    
Silver receivable $ 0   $ 0   $ 0
Silver payable 6,214,330   $ 6,214,330   0
Minimum block of shares issued redeemed against silver     50,000    
Reserve for uncertain tax positions $ 0   $ 0   0
Annualized rate of Sponsor's Fee before waiver     0.45%    
Expense ratio [1],[2] 0.30% 0.30% 0.30% 0.30%  
Maximum sponsor fee for legal expenses     $ 100,000    
Sponsor's Fee $ 776,575 $ 333,414 1,457,887 $ 616,898  
Fees payable to Sponsor 255,430   255,430   $ 219,813
Sponsor fees waived 388,287 166,707 728,943 308,449  
All other expenses $ 0 $ 0 $ 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%.