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Significant Accounting Policies (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Significant Accounting Policies [Abstract]      
Minimum block of shares issued redeemed against gold 50,000    
Weighted average number of Shares 0.39% 0.39% 0.39%
Liability for Uncertainty in Income Taxes, Noncurrent $ 0 $ 0  
Sponsor Fees 3,924,259 3,444,870 $ 4,165,756
Fees payable to Sponsor 315,510 260,280  
All other expenses $ 0 $ 0 $ 0