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CONTRACTS AND AGREEMENTS - Brokerage Commission (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Commissions accrued to brokers	$ 251,098	$ 366,890	$ 522,662	$ 811,905
Percentage of commissions accrued	0.37%	0.41%	0.37%	0.41%
Rebalancing Investments Transaction [Member]
Commissions accrued to brokers			$ 436,630	$ 607,451
Percentage of commissions accrued	83.54%	74.82%	83.54%	74.82%
Creation And Redemption Activity [Member]
Commissions accrued to brokers			$ 86,032	$ 204,454
Percentage of commissions accrued	16.46%	25.18%	16.46%	25.18%

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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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