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NET SALES AND REVENUE (Tables)
 12 Months Ended
Jan. 31, 2015
Net Sales And Revenue [Abstract]  
Revenue from External Customers by Products and Services [Table Text Block] The following table summarizes sales at the Company’s consolidated ethanol plants for each product and service group for the periods presented (amounts in thousands):

    Fiscal Year  
Product or Service Category   2014     2013     2012  
Ethanol   $ 452,831     $ 500,203     $ 495,249  
Dried distillers grains     96,328       125,575       114,732  
Non-food grade corn oil     16,985       18,788       16,037  
Modified distillers grains     4,814       18,998       27,463  
Other     1,272       2,481       3,108  
Total   $ 572,230     $ 666,045     $ 656,589