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Accounting Policies (Tables)
 3 Months Ended
Apr. 30, 2016
Accounting Policies [Abstract]  
Schedule of Inventory, Current [Table Text Block] The components of inventory are as follows as of the dates presented (amounts in thousands):

    April 30,
2016		     January 31,
2016		  
             
Ethanol and other finished goods   $ 4,945     $ 3,105  
Work in process     2,711       2,652  
Grain and other raw materials     18,076       11,421  
Total   $ 25,732     $ 17,178