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CONTRACTS AND AGREEMENTS (Brokerage Commission) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Floor Brokerage Exchange and Clearance Fees	$ 419,698	$ 562,675
Percentage Of Average Daily Net Assets	0.34%	0.46%
Rebalancing Investments Transaction [Member]
Floor Brokerage Exchange and Clearance Fees	$ 331,242	$ 526,747
Percentage Of Average Daily Net Assets	78.92%	93.61%
Creation And Redemption Activity [Member]
Floor Brokerage Exchange and Clearance Fees	$ 88,456	$ 35,928
Percentage Of Average Daily Net Assets	21.08%	6.39%

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- Definition

Percentage of Average Daily Net Assets

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No definition available.

+ Details

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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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