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D. FAIR VALUE MEASUREMENTS (Details) - USD ($)
Mar. 31, 2018
Sep. 30, 2017
Derivative instruments $ 1,856,817 $ 2,053,402
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1)    
Derivative instruments 20,846 32,773
Significant Other Observable Inputs (Level 2)    
Derivative instruments 0 0
Significant Unobservable Inputs (Level 3)    
Derivative instruments $ 1,835,971 $ 2,020,629