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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($) | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Short-Term Investments | $ 82,786,902 | $ 96,899,767
Exchange-Traded Futures Contracts |  |
Foreign Contracts | 5,587,910 | 2,332,880
Fair Value, Inputs, Level 1 [Member] |  |
Short-Term Investments | 82,786,902 | 96,899,767
Exchange-Traded Futures Contracts |  |
Foreign Contracts | 5,587,910 | 2,332,880
Fair Value, Inputs, Level 2 [Member] |  |
Short-Term Investments | 0 | 0
Exchange-Traded Futures Contracts |  |
Foreign Contracts | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |
Short-Term Investments | 0 | 0
Exchange-Traded Futures Contracts |  |
Foreign Contracts | $ 0 | $ 0

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