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Significant Accounting Policies (Narrative) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Significant Accounting Policies [Abstract] |  |  |
Basket of shares | 50,000 |  |
Fair value transfers | $ 0 | $ 0 |
Bullion receivable | 7,619,507 |  |
Bullion payable | 0 |  |
Reserve for uncertain tax positions | $ 0 |  |
Annualized rate of Sponsors Fee | 0.60% | 0.60% | 0.60%
Sponsor Fees | $ 2,403,544 | $ 2,132,987 | $ 1,942,976
Fees payable to Sponsor | 248,496 | 182,586 |
All other expenses | $ 0 | $ 0 |

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