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CONTRACTS AND AGREEMENTS - Brokerage and Futures Commissions Merchant Agreements (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Total commissions accrued to brokers	$ 131	$ 372
Total commissions as annualized percentage of average total net assets	0.02%	0.03%
Rebalancing Investments Transaction [Member]
Total commissions accrued to brokers	$ 131	$ 274
Total commissions as annualized percentage of average total net assets	100.00%	73.66%
Creation And Redemption Activity [Member]
Total commissions accrued to brokers		$ 98
Total commissions as annualized percentage of average total net assets		26.34%

X

- Definition

Percentage of Average Daily Net Assets

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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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X

- Details

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