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Net Sales and Revenue (Tables)
9 Months Ended
Oct. 31, 2021
Revenue from Contract with Customer [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]

The following tables shows disaggregated revenue by product:

 

   Three Months Ended
October 31,
   Nine Months Ended
October 31,
 
   2021   2020   2021   2020 
Sales of products, continuing operations Ethanol  $161,598   $98,850   $441,657   $191,971 
Dried distillers grains   28,717    20,916    91,408    45,314 
Non-food grade corn oil   11,958    4,661    27,364    9,162 
Modified distillers grains   2,930    562    7,157    1,228 
Derivative financial instruments losses   (2,144)   (777)   (4,907)   (1,075)
Other   7    5    107    94 
Total  $203,066   $124,217   $562,786   $246,694 
                     
Sales of products, discontinued operations:                    
Refined coal1  $151   $34   $377   $134