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CONTRACTS AND AGREEMENTS - Brokerage and Futures Commissions Merchant Agreements (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Total commissions accrued to brokers	$ 763	$ 390	$ 1,550	$ 521
Total commissions as annualized percentage of average total net assets	0.04%	0.03%	0.04%	0.03%
Rebalancing Investments Transaction [Member]
Total commissions accrued to brokers			$ 994	$ 358
Total commissions as annualized percentage of average total net assets	64.13%	68.71%	64.13%	68.71%
Creation And Redemption Activity [Member]
Total commissions accrued to brokers			$ 556	$ 163
Total commissions as annualized percentage of average total net assets	35.87%	31.29%	35.87%	31.29%

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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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