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FAIR VALUE OF FINANCIAL INSTRUMENTS - Fair Value of Derivative Instruments (Details) - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Derivatives, Fair Value [Line Items]    
Derivatives not Accounted for as Hedging Instruments $ (543,351) $ (46,103)
Commodity Contracts [Member] | Assets [Member]    
Derivatives, Fair Value [Line Items]    
Derivatives not Accounted for as Hedging Instruments $ (543,351) $ (46,103)