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Condensed Schedule of Investments [Parenthetical] | 9 Months Ended
--- | ---
Sep. 30, 2015 USD ($)
Collateral amount on open futures contracts | $ 14,928,031
Cash Equivalents [Member] | U.S. Treasury Bill 0.10%, 10/01/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.10%
Expiration date | 10/01/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.08%, 10/08/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.08%
Expiration date | 10/08/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.09%, 10/15/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.09%
Expiration date | 10/15/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.09%, 10/22/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.09%
Expiration date | 10/22/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.06%, 10/29/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.06%
Expiration date | 10/29/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.07%, 11/05/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.07%
Expiration date | 11/05/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.08%, 11/12/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.08%
Expiration date | 11/12/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.08%, 11/19/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.08%
Expiration date | 11/19/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.09%, 11/27/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.09%
Expiration date | 11/27/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.07%, 12/03/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.07%
Expiration date | 12/03/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.08%, 12/10/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.08%
Expiration date | 12/10/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.11%, 12/31/2015 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.11%
Expiration date | 12/31/2015
Cash Equivalents [Member] | U.S. Treasury Bills,0.11%, 1/14/2016 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.11%
Expiration date | 1/14/2016
Cash Equivalents [Member] | U.S. Treasury Bills,0.13%, 1/21/2016 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.13%
Expiration date | 1/21/2016
Cash Equivalents [Member] | U.S. Treasury Bills,0.15%, 1/28/2016 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.15%
Expiration date | 1/28/2016
Cash Equivalents [Member] | U.S. Treasury Bills,0.19%, 2/04/2016 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.19%
Expiration date | 02/04/2016
Cash Equivalents [Member] | U.S. Treasury Bills,0.22%, 2/11/2016 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.22%
Expiration date | 02/11/2016
Cash Equivalents [Member] | U.S. Treasury Bills,0.20%, 2/18/2016 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.20%
Expiration date | 2/18/2016
Cash Equivalents [Member] | U.S. Treasury Bills,0.23%, 3/03/2016 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.23%
Expiration date | 03/03/2016
Cash Equivalents [Member] | U.S. Treasury Bills,0.26%, 3/10/2016 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.26%
Expiration date | 3/10/2016
Cash Equivalents [Member] | U.S. Treasury Bills,0.24%, 3/17/2016 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.24%
Expiration date | 3/17/2016
Cash Equivalents [Member] | U.S. Treasury Bills,0.09%, 3/24/2016 [Member] | Us Treasury Securities [Member] |
Interest rate | 0.09%
Expiration date | 3/24/2016
Open Futures Contracts - Long [Member] | United States [Member] | ICE Brent Crude Oil Futures CO November 2015 contracts, expiring October 2015 [Merber] |
Expiration date | October 2015

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