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Condensed Schedule of Investments (USD $)	9 Months Ended
	Sep. 30, 2012
Number of Contracts	506
Unrealized Loss on Open Commodity Contracts	$ (436,350)
% of Partners' Capital	(0.77%)
United States - Money Market Funds
Market Value	40,352,635
% of Partners' Capital	71.00%
Us Treasury Securities [Member]
United States Treasury Obligation
Principal Amount	2,340,000
United States - Money Market Funds
Market Value	2,339,942
% of Partners' Capital	4.12%
Fidelity Institutional Government Portfolio [Member]
United States - Money Market Funds
Principal Amount	5,502,611
Market Value	5,502,611
% of Partners' Capital	9.68%
Goldman Sachs Financial Square Funds [Member]
United States - Money Market Funds
Principal Amount	11,001,056
Market Value	11,001,056
% of Partners' Capital	19.36%
Morgan Stanley Institutional Liquidity Fund [Member]
United States - Money Market Funds
Principal Amount	11,508,829
Market Value	11,508,829
% of Partners' Capital	20.25%
Wells Fargo Advantage Government Money Market Fund - Class I [Member]
United States - Money Market Funds
Principal Amount	10,000,197
Market Value	10,000,197
% of Partners' Capital	17.59%
Money Market Funds [Member]
United States - Money Market Funds
Market Value	$ 38,012,693
% of Partners' Capital	66.88%

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Cash equivalents money market funds principal amount.

+ References

No definition available.

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- Definition

Cash equivalents united states treasury principal amount.

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- Definition

The number of contracts written for the open futures contracts written on the investment.

+ References

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Percentage of partners capital in open futures contracts.

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Percentage of partners capital on cash equivalents.

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No definition available.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 8

-Footnote 2

-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 FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 7, 8, 9, 10

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

-URI http://asc.fasb.org/extlink&oid=6506951



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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 7

-Footnote 1

-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.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open agreements to purchase or sell mineral resources, energy, and agricultural products at some future point held at each balance sheet date, that was included in earnings for the period.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-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 FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

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