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Financial Highlights (USD $) | 12 Months Ended
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Dec. 31, 2014
Per Share Performance (for a Share outstanding throughout the entire period) |  |
Net asset value per Share at beginning of year | $ 65.91 gltr_NetAssetValuePerShare | [1]
Income from investment operations: |  |
Net investment loss | $ (0.41)gltr_NetInvestmentIncomLossPerShare | [1]
Total realized and change in unrealized gain on investment in Bullion | $ (3.90)gltr_NetRealizedAndUnrealizedGainsAndLossesOnInvestmentInBullionPerShare | [1]
Change in net assets from operations | $ (4.31)gltr_ChangeInNetAssetsFromOperationsPerShare | [1]
Net asset value per Share at end of year | $ 61.60 gltr_NetAssetValuePerShare | [1]
Weighted average number of shares | 2,669,726 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | [1]
Expense Ratio |  |
Sponsor's fee per Share | 0.60%gltr_AnnualizedRateOfSponsorsFee | [1]
Net Investment Loss Ratio |  |
Net investment loss ratio | (0.60%)gltr_AnnualizedNetInvestmentIncomeLossRatio | [1]
Total Return | (6.54%)gltr_NonAnnualizedTotalReturn | [1]
[1] | Effective January 1, 2014, the Trust has adopted the provisions of Topic 946, Investment Companies, and follows specialized accounting. Refer to Note 2.1 for additional information.

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