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CONTRACTS AND AGREEMENTS (Brokerage Commission) (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Commissions accrued to brokers | $ 366,890 | $ 380,958 | $ 811,905 | $ 800,656
Percentage of commissions accrued | 0.41% | 0.34% | 0.41% | 0.34%
Rebalancing Investments Transaction [Member] |  |  |  |
Commissions accrued to brokers |  |  | $ 607,451 | $ 647,003
Percentage of commissions accrued | 74.82% | 80.81% | 74.82% | 80.81%
Creation And Redemption Activity [Member] |  |  |  |
Commissions accrued to brokers |  |  | $ 204,454 | $ 153,653
Percentage of commissions accrued | 25.18% | 19.19% | 25.18% | 19.19%

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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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- Details
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