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INVESTMENTS (Details)
$ in Thousands, gal in Millions
 12 Months Ended
Jan. 31, 2022
USD ($)
gal
Jan. 31, 2021
USD ($)
Jan. 31, 2020
USD ($)
INVESTMENTS (Details) [Line Items]      
Income (Loss) from Equity Method Investments $ 6,624 $ 500 $ 1,392
Proceeds from Equity Method Investment, Distribution 5,514 3,508 1,003
Equity Method Investments 30,566 29,456  
Short-Term Investments 25,877 36,194  
Certificates of Deposit [Member]      
INVESTMENTS (Details) [Line Items]      
Short-Term Investments $ 25,900 $ 36,200  
Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity, Year One 0.10% 0.20%  
Big River [Member]      
INVESTMENTS (Details) [Line Items]      
Payments to Acquire Equity Method Investments $ 20,000    
Quantity of ethanol shipped (in US Gallons) | gal 421.0    
Income (Loss) from Equity Method Investments $ 6,600 $ 500 1,400
Proceeds from Equity Method Investment, Distribution 5,500 $ 3,500 $ 1,000
Equity Method Investments 30,600    
Equity Method Investment, Underlying Equity in Net Assets 29,800    
Other Restricted Assets 116,200    
Proportionate Share of Restricted Net Assets $ 12,000