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FAIR VALUE OF FINANCIAL INSTRUMENTS - Effect of Derivative Instruments (Details) - USD ($) | 9 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024
FAIR VALUE OF FINANCIAL INSTRUMENTS |  |
Change in unrealized gain (loss) on open commodity futures contracts | $ (1,115,965) | $ (1,798,643)
Commodity Contracts | Realized gain (loss) on closed positions |  |
FAIR VALUE OF FINANCIAL INSTRUMENTS |  |
Realized gain (loss) on closed commodity futures contracts | (3,166,106) | 2,049,051
Commodity Contracts | Change in unrealized gain (loss) on open positions |  |
FAIR VALUE OF FINANCIAL INSTRUMENTS |  |
Change in unrealized gain (loss) on open commodity futures contracts | $ (1,115,965) | $ (1,798,643)

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