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Net Sales and Revenue (Tables)
6 Months Ended
Jul. 31, 2022
Revenue from Contract with Customer [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]

The following tables shows disaggregated revenue by product (amounts in thousands):

 

   Three Months Ended   Six Months Ended 
   July 31,   July 31, 
   2022   2021   2022   2021 
Sales of products, continuing operations                    
Ethanol  $190,807   $153,990   $337,269   $280,059 
Dried distillers grains   34,261    31,573    66,158    62,691 
Non-food grade corn oil   14,223    9,813    25,325    15,407 
Modified distillers grains   2,456    1,934    6,811    4,227 
Derivative financial instruments losses   (1,474)    (1,638)    (1,152)    (2,764) 
Other   55    6    145    100 
Total  $240,328   $195,678   $434,556   $359,720 
                     
Sales of products, discontinued operations:                    
Refined coal1  $
-
   $165   $
-
   $227