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CONTRACTS AND AGREEMENTS (Brokerage Commission) (Details) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Commissions accrued to brokers | $ 445,015 | $ 419,698
Percentage of commissions accrued | 0.41% | 0.34%
Rebalancing Investments Transaction [Member] |  |
Commissions accrued to brokers | $ 321,081 | $ 331,242
Percentage of commissions accrued | 72.15% | 78.92%
Creation And Redemption Activity [Member] |  |
Commissions accrued to brokers | $ 123,934 | $ 88,456
Percentage of commissions accrued | 27.85% | 21.08%

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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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- Details
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- Details
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