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Net Sales and Revenue
 6 Months Ended
Jul. 31, 2016
Net Sales And Revenue [Abstract]  
Net Sales And Revenue [Text Block]

Note 13. Net Sales and Revenue


The following table summarizes sales for each product and service group for the periods presented (amounts in thousands):


   Three Months Ended   Six Months Ended 
   July 31,   July 31, 
Product or Service Category   2016    2015    2016    2015 
Ethanol  $90,933   $86,990   $168,564   $165,562 
Dried distillers grains   18,946    21,585    36,000    41,836 
Non-food grade corn oil   4,738    4,049    8,584    8,008 
Modified distillers grains   983    696    2,547    3,001 
Other   107    160    234    270 
Total  $115,707   $113,480   $215,929   $218,677