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Long-Term Debt (Details) - USD ($)
$ in Thousands
Oct. 31, 2019
Jan. 31, 2019
Short-term debt $ 1,688 $ 0
Long-term debt, excluding current maturities 0 1,161
Long-term debt, current maturities 1,194 158
UK    
Short-term debt 1,194 0
Long-term debt, excluding current maturities 0 1,161
Long-term debt, current maturities 0 158
USA    
Short-term debt 494 0
Long-term debt, excluding current maturities 0 0
Long-term debt, current maturities $ 0 $ 0