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Statements of Financial Condition (Parenthetical) (USD $)
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Apr. 30, 2013
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Oct. 31, 2012
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|---|---|---|
| Statements of Financial Condition [Abstract] | ||
| Redeemable Capital Shares, no par value | ||
| Redeemable Capital Shares, shares authorized | 102,000,000 | 92,000,000 |
| Redeemable Capital Shares, shares issued | 2,100,000 | 2,050,000 |
| Redeemable Capital Shares, shares outstanding | 2,100,000 | 2,050,000 |