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Fair Value (Tables)
 6 Months Ended
Jul. 31, 2015
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Financial assets and liabilities measured at fair value on a recurring basis at July 31, 2015 are summarized below (amounts in thousands):

    Level 1     Level 2     Level 3     Fair Value  
                                 
Derivative financial instruments (1)   $ 448     $ —     $ —     $ 448  
Investment in cooperative (2)     —       —       333       333  
Total assets   $ 448     $ —     $ 333     $ 781  
Forward purchase contract liability (3)   $ —     $ —     $ 469     $ 469  
    Level 1     Level 2     Level 3     Fair Value  
                                 
Investment in cooperative (2)   $ —     $ —     $ 333     $ 333  

(1) The derivative financial instruments are included in “Prepaid expenses and other current assets” on the accompanying Consolidated Condensed Balance Sheets.

(2) The investment in cooperative is included in “Other assets” on the accompanying Consolidated Condensed Balance Sheets.

(3) The forward purchase contract liability is included in “Accrued expenses and other current liabilities” on the accompanying Consolidated Condensed Balance Sheets.