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Fair Value (Tables)
 3 Months Ended
Apr. 30, 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 April 30, 2015 are summarized below (amounts in thousands):

    Level 1     Level 2     Level 3     Fair Value  
                         
Investment in cooperative (1)   $ —     $ —     $ 333     $ 333  
    Level 1     Level 2     Level 3     Fair Value  
                         
Investment in cooperative (1)   $ —     $ —     $ 333     $ 333  

(1) The investment in cooperative is included in “Other assets” on the accompanying Consolidated Condensed Balance Sheets.
Fair Value Measurements, Nonrecurring [Table Text Block] Assets measured at fair value on a non-recurring basis as of April 30, 2015 are summarized below (amounts in thousands):

    Level 1     Level 2     Level 3     Total
Losses (1)		  
                         
Property and equipment, net   $ —     $ —     $ 522     $ 216  
(1) Total losses include impairment charges and loss on disposal.