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CONTRACTS AND AGREEMENTS (Brokerage Commission) (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Commissions accrued to brokers | $ 298,780 | $ 403,584 | $ 1,110,685 | $ 1,204,240
Percentage of commissions accrued | 0.40% | 0.34% | 0.40% | 0.34%
Rebalancing Investments Transaction [Member] |  |  |  |
Commissions accrued to brokers |  |  | $ 856,305 | $ 998,598
Percentage of commissions accrued | 77.10% | 82.92% | 77.10% | 82.92%
Creation And Redemption Activity [Member] |  |  |  |
Commissions accrued to brokers |  |  | $ 254,380 | $ 205,642
Percentage of commissions accrued | 22.90% | 17.08% | 22.90% | 17.08%

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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. + References No definition available. + Details
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