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CONTRACTS AND AGREEMENTS -Brokerage Commission (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Brokerage commissions	$ 2,423,017	$ 2,538,611	$ 4,675,687
Commission
Brokerage commissions	$ 2,423,017	$ 2,538,611	$ 4,675,687
Percentage of average daily net assets	0.17%	0.14%	0.18%
Rebalancing Investments Transaction
Brokerage commissions	$ 2,052,263	$ 2,145,268	$ 4,112,340
Percentage of average daily net assets	84.70%	84.51%	87.95%
Creation And Redemption Activity
Brokerage commissions	$ 370,754	$ 393,343	$ 563,347
Percentage of average daily net assets	15.30%	15.49%	12.05%

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.

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X

- Definition

Percentage of Average Daily Net Assets

+ References

No definition available.

+ Details

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- Details

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- Details

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