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Debt (Long-term Debt) (Details) - USD ($)
$ in Thousands
Apr. 30, 2021
Jan. 31, 2021
Apr. 30, 2020
Debt Instrument [Line Items]      
Long-term debt $ 17,785 $ 10,440 $ 26,248
Less current portion 2,990 887 10,618
Non-current portion 14,795 9,553 15,630
Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Long-term debt 12,157 4,590 19,740
Other Debt [Member]      
Debt Instrument [Line Items]      
Long-term debt $ 5,628 $ 5,850 $ 6,508