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Related Parties
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12 Months Ended |
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Oct. 31, 2012
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| Related Parties [Abstract] | |
| Related Parties |
7. Related Parties The Sponsor is a related party of the Trust. The Sponsor oversees the performance of the Trustee and the Trust’s principal service providers, including the preparation of financial statements, but does not exercise day-to-day oversight over the Trustee or the Trust’s service providers. |