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Accounting Policies (Tables)
9 Months Ended
Oct. 31, 2013
Accounting Policies [Abstract]  
Schedule of Inventory, Current [Table Text Block] The components of inventory at October 31, 2013 and January 31, 2013 are as follows (amounts in thousands):

    October 31,
2013
    January 31,
2013
 
                 
Ethanol and other finished goods   $ 4,453     $ 7,306  
Work in process     3,360       4,414  
Grain and other raw materials     8,493       13,199  
Total   $ 16,306     $ 24,919