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Derivative Financial Instruments (Tables)
 9 Months Ended
Oct. 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 Condensed Balance Sheets in which the fair values are reflected (in thousands):

   Asset Derivatives
Fair Value		  Liability Derivatives
Fair Value
   October 31, 2016   January 31, 2016   October 31, 2016   January 31, 2016 
                     
Commodity futures (1)  $87   $—   $—   $— 
Forward purchase contracts (2)  $—   $—   $408   $312 

(1) Commodity futures are included in other prepaid expense and other current assets. These futures contracts are for approximately 0.3 million bushels at October 31, 2016.

(2) Forward purchase contracts are included in accrued expenses and other current liabilities. These contracts are for purchases of approximately 4.5 million and approximately 0.7 million bushels of corn at October 31, 2016 and January 31, 2016, respectively.