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Debt (Long-term Debt) (Details) - USD ($)
$ in Thousands
Jul. 31, 2020
Jan. 31, 2020
Jul. 31, 2019
Debt Instrument [Line Items]      
Long-term debt $ 33,794 $ 16,696 $ 51,748
Less current portion 18,387 878 35,457
Non-current portion 15,407 15,818 16,291
Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Long-term debt 27,505 9,969 44,585
Other Debt [Member]      
Debt Instrument [Line Items]      
Long-term debt $ 6,289 $ 6,727 $ 7,163