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CONTRACTS AND AGREEMENTS (Brokerage Commissions) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Floor Brokerage Exchange and Clearance Fees	$ 6,117	$ 3,918	$ 8,360
Percentage Of Average Daily Net Assets	0.04%	0.02%	0.03%
Rebalancing Investments Transaction [Member]
Floor Brokerage Exchange and Clearance Fees	$ 4,698	$ 2,126	$ 4,484
Percentage Of Average Daily Net Assets	76.80%	54.26%	53.64%
Creation And Redemption Activity [Member]
Floor Brokerage Exchange and Clearance Fees	$ 1,419	$ 1,792	$ 3,876
Percentage Of Average Daily Net Assets	23.20%	45.74%	46.36%

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- Definition

Percentage of Average Daily Net Assets

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- Definition

The amount of expense during the period for floor brokerage fees paid to other broker-dealers to execute trades on their behalf, stock exchange fees, order flow fees, and clearance fees.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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