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CONTRACTS AND AGREEMENTS (Brokerage Commission) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Floor Brokerage Exchange and Clearance Fees	$ 380,958	$ 522,847	$ 800,656	$ 1,085,522
Percentage Of Average Daily Net Assets	0.34%	0.42%	0.34%	0.42%
Rebalancing Investments Transaction [Member]
Floor Brokerage Exchange and Clearance Fees			$ 647,003	$ 1,030,262
Percentage Of Average Daily Net Assets	80.81%	94.91%	80.81%	94.91%
Creation And Redemption Activity [Member]
Floor Brokerage Exchange and Clearance Fees			$ 153,653	$ 55,260
Percentage Of Average Daily Net Assets	19.19%	5.09%	19.19%	5.09%

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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.

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No definition available.

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- Details

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