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INCOME TAXES - Equity Method Investments And Supplemental Cash Flow Information (Details) - USD ($)
3 Months Ended
Apr. 30, 2021
Apr. 30, 2020
INCOME TAXES    
Payment for equity method investment $ 3,520,000  
Income Taxes Paid, Net 0 $ 0
Proceeds from Income Tax Refunds $ 0 $ 800,000