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DERIVATIVE FINANCIAL INSTRUMENTS (Tables)
 12 Months Ended
Jan. 31, 2017
Jan. 31, 2016
Disclosure Text Block Supplement [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,		 
   2017   2016   2017   2016 
                 
Commodity futures (1)  $45   $—   $—   $— 
Forward purchase contracts (2)  $163   $—   $136   $312 
(1)Commodity futures are included in prepaid expense and other. These contracts are short/sell positions for approximately 0.7 million bushels of corn.
(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 5.3 million bushels of corn at January 31, 2017 and 0.7 million bushels of corn at January 31, 2016.
Derivative Instruments, Gain (Loss) [Table Text Block] The following table provides information about gains recognized in income on the Company’s derivative financial instruments and the line items on the Consolidated Statements of Operations in which the fair values are reflected for fiscal years 2016, 2015 and 2014 (in thousands):

   2016   2015   2014 
                
Cost of sales  $(2,131)  $(382)  $—