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CONTRACTS AND AGREEMENTS - Brokerage Commission (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Commissions accrued to brokers	$ 178,268	$ 595,544	$ 436,130	$ 1,168,244
Percentage of commissions accrued	0.29%	0.55%	0.29%	0.55%
Rebalancing Investments Transaction [Member]
Commissions accrued to brokers			$ 395,670	$ 1,025,730
Percentage of commissions accrued	90.72%	87.80%	90.72%	87.80%
Creation And Redemption Activity [Member]
Commissions accrued to brokers			$ 40,460	$ 142,514
Percentage of commissions accrued	9.28%	12.20%	9.28%	12.20%

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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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