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Condensed Schedule of Investments	Sep. 30, 2017 USD ($)
Cash Equivalents [Member] | US Treasury Securities [Member]
Market Value	$ 67,824,096
% of Partners' Capital	70.31%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,0.90%, 10/05/2017
Principal Amount	$ 3,000,000
Market Value	$ 2,999,702
% of Partners' Capital	3.11%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,0.92%, 10/12/2017
Principal Amount	$ 3,000,000
Market Value	$ 2,999,161
% of Partners' Capital	3.11%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,0.91%, 10/19/2017
Principal Amount	$ 3,000,000
Market Value	$ 2,998,642
% of Partners' Capital	3.11%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,0.95%, 10/26/2017
Principal Amount	$ 2,000,000
Market Value	$ 1,998,681
% of Partners' Capital	2.07%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,0.97%, 11/02/2017
Principal Amount	$ 2,000,000
Market Value	$ 1,998,284
% of Partners' Capital	2.07%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.01%, 11/09/2017
Principal Amount	$ 4,000,000
Market Value	$ 3,995,645
% of Partners' Capital	4.14%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,0.98%, 11/16/2017
Principal Amount	$ 3,000,000
Market Value	$ 2,996,243
% of Partners' Capital	3.11%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.05%, 11/24/2017
Principal Amount	$ 3,000,000
Market Value	$ 2,995,298
% of Partners' Capital	3.11%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.05%, 11/30/2017
Principal Amount	$ 3,000,000
Market Value	$ 2,994,775
% of Partners' Capital	3.11%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.08%, 12/07/2017
Principal Amount	$ 3,000,000
Market Value	$ 2,994,026
% of Partners' Capital	3.10%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.09%, 12/14/2017
Principal Amount	$ 3,000,000
Market Value	$ 2,993,340
% of Partners' Capital	3.10%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.11%, 12/21/2017
Principal Amount	$ 3,000,000
Market Value	$ 2,992,575
% of Partners' Capital	3.10%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.10%, 12/28/2017
Principal Amount	$ 3,000,000
Market Value	$ 2,991,970
% of Partners' Capital	3.10%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.12%, 1/04/2018
Principal Amount	$ 3,000,000
Market Value	$ 2,991,173
% of Partners' Capital	3.10%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.11%, 1/11/2018
Principal Amount	$ 3,000,000
Market Value	$ 2,990,608
% of Partners' Capital	3.10%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.10%, 1/18/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,993,399
% of Partners' Capital	2.07%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.12%, 1/25/2018
Principal Amount	$ 3,000,000
Market Value	$ 2,989,222
% of Partners' Capital	3.10%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.12%, 2/01/2018
Principal Amount	$ 3,000,000
Market Value	$ 2,988,571
% of Partners' Capital	3.10%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.13%, 2/08/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,991,875
% of Partners' Capital	2.07%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.12%, 2/15/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,991,552
% of Partners' Capital	2.07%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.10%, 2/22/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,991,280
% of Partners' Capital	2.06%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.09%, 3/01/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,990,898
% of Partners' Capital	2.06%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.14%, 3/08/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,990,059
% of Partners' Capital	2.06%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.14%, 3/15/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,989,642
% of Partners' Capital	2.06%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.16%, 3/22/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,989,011
% of Partners' Capital	2.06%
Cash Equivalents [Member] | US Treasury Securities [Member] | U.S. Treasury Bills,1.17%, 3/29/2018
Principal Amount	$ 2,000,000
Market Value	$ 1,988,464
% of Partners' Capital	2.06%
Cash Equivalents [Member] | United States [Member]
Market Value	$ 87,824,096
% of Partners' Capital	91.04%
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member]
Market Value	$ 20,000,000
% of Partners' Capital	20.73%
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member] | Fidelity Investments Money Market Funds - Government Portfolio [Member]
Principal Amount	$ 12,000,000
Market Value	$ 12,000,000
% of Partners' Capital	12.44%
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member] | Goldman Sachs Financial Square Funds - Government Fund - Class FS [Member]
Principal Amount	$ 3,000,000
Market Value	$ 3,000,000
% of Partners' Capital	3.11%
Cash Equivalents [Member] | United States [Member] | Money Market Funds [Member] | Morgan Stanley Institutional Liquidity Funds Government Portfolio [Member]
Principal Amount	$ 5,000,000
Market Value	$ 5,000,000
% of Partners' Capital	5.18%
Open Futures Contracts - Long [Member] | United States [Member] | ICE Brent Crude Oil Futures CO December 2017 contracts, expiring October 2017 [Member]
Number of Contracts	1,699	[1]
Value/Unrealized Gain (Loss) on Open Commodity Contracts	$ 2,406,500	[1]
Principal Amount	$ 94,079,710	[1]
% of Partners' Capital	2.49%	[1]
[1] Collateral amounted to $13,446,411 on open futures contracts.

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