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CONTRACTS AND AGREEMENTS (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Brokerage commissions	$ 29,924	$ 53,272
Percentage Of Average Daily Net Assets	0.11%	0.22%
Rebalancing Investments Transaction [Member]
Brokerage commissions	$ 29,790	$ 51,031
Percentage Of Average Daily Net Assets	99.55%	95.79%
Creation And Redemption Activity [Member]
Brokerage commissions	$ 134	$ 2,241
Percentage Of Average Daily Net Assets	0.45%	4.21%

X

- Definition

Percentage Of Average Daily Net Assets

+ References

No definition available.

+ Details

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X

- 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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X

- Details

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Period Type:

X

- Details

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Period Type: