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DERIVATIVE FINANCIAL INSTRUMENTS (Tables)
 12 Months Ended
Jan. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Derivative Assets at Fair Value [Table Text Block] The following table provides information about the fair values of the Company’s derivative financial instruments and the line items on the Consolidated Balance Sheets in which the fair values are reflected (in thousands):

   Asset Derivatives   Liability Derivatives 
   Fair Value at
January 31,		   Fair Value at
January 31,		 
   2018   2017   2018   2017 
                 
Commodity futures (1)  $—   $45   $87   $— 
Forward purchase contracts (2)  $72   $163   $34   $136 
  (1) Commodity futures liabilities are included in accrued expenses and other current liabilities.  Commodity futures assets are included in prepaid expense and other.  These contracts are short/sell positions for approximately 2.5 million bushels of corn and approximately 2.8 million gallons of ethanol and long/buy positions for approximately 2.8 million gallons of ethanol at January 31, 2018.  These contracts are short/sell positions for approximately 0.7 million bushels of corn at January 31, 2017.
     
  (2) Forward purchase contracts assets are included in prepaid expenses and other while forward purchase contracts liabilities are included in accrued expenses and other current liabilities.  These contracts are for purchases of approximately 11.7 million bushels of corn at January 31, 2018 and 5.3 million bushels of corn at January 31, 2017.