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Accounting Policies (Tables)
9 Months Ended
Oct. 31, 2020
Accounting Policies [Abstract]  
Schedule of Inventory, Current [Table Text Block] The components of inventory are as follows as of the dates presented (amounts in thousands):
   October 31,
2020
    January 31,
2020

 

        
Ethanol and other finished goods  $7,013    $10,864 
Work in process   3,010     3,258 
Grain and other raw materials   11,593     21,512 
Total  $21,616    $35,634