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Accounting Policies (Tables)
3 Months Ended
Apr. 30, 2015
Accounting Policies [Abstract]  
Schedule of Inventory, Current [Table Text Block] The components of inventory are as follows for the periods presented (amounts in thousands):

    April 30,
2015
    January 31,
2015
 
             
Ethanol and other finished goods   $ 4,402     $ 3,039  
Work in process     2,420       2,609  
Grain and other raw materials     12,744       12,414  
Total   $ 19,566     $ 18,062