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Euro Deposits (Details)	6 Months Ended	12 Months Ended
	Apr. 30, 2013 EUR (€)	Oct. 31, 2012 EUR (€)	Apr. 30, 2013 USD ($)	Oct. 31, 2012 USD ($)
Euro Deposits (Textual) [Abstract]
Euro principal deposits	€ 367,111,578	€ 1,278,954,563
Euro principal redemptions	362,174,510	1,258,988,057
Euro principal withdrawals	391,584	558,994
Euro principal balance	€ 208,227,645	€ 203,682,161	$ 287,595,795	$ 263,931,355
Interest rate on interest-bearing demand account			0.00%

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- Definition

Interest bearing demand account, euro principal withdrawals.

+ References

No definition available.

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- Definition

Payments for interest bearing deposits in banks.

+ References

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- Definition

Proceeds from interest bearing deposits in banks.

+ References

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- Definition

Fixed interest rate related to the interest rate derivative.

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- Definition

For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Audit and Accounting Guide (AAG)

-Number AAG-DEP

-Paragraph 4, 11

-IssueDate 2006-05-01

-Chapter 6

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 2

-Article 9



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.2)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6476743&loc=d3e59706-112781

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