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Fair Value (Tables)
 3 Months Ended
Apr. 30, 2016
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 April 30, 2016 are summarized below (amounts in thousands):

    Level 1     Level 2     Level 3     Fair Value  
                         
Commodity futures (1)   $ 92     $ —     $ —     $ 92  
Investment in cooperative (2)     —       —       333       333  
Total assets   $ 92     $ —     $ 333     $ 425  
Forward purchase contract liability (3)   $ —     $ 3     $ —     $ 3  
    Level 1     Level 2     Level 3     Fair Value  
                         
Investment in cooperative (2)   $ —     $ —     $ 333     $ 333  
Forward purchase contracts liability (3)   $ —     $ 312     $ —     $ 312  

(1) Commodity futures 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.