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Net Sales and Revenue (Tables)
9 Months Ended
Oct. 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
October 31,
   Nine Months Ended
October 31,
 
   2022   2021   2022   2021 
Sales of products, continuing operations:                     
Ethanol  $165,135   $161,598   $502,404   $441,657 
Dried distillers grains   38,009    28,717    104,167    91,408 
Non-food grade corn oil   14,648    11,958    39,973    27,364 
Modified distillers grains   2,477    2,930    9,288    7,157 
Derivative financial instrument gains (losses)   8    (2,144)   (1,144)   (4,907)
Other   -    7    145    107 
Total  $220,277   $203,066   $654,833   $562,786 
                     
Sales of products, discontinued operations:                    
Refined coal1  $
-
   $151   $
-
   $377