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Long-Term Debt (Details) - USD ($)
$ in Thousands
Jul. 31, 2019
Jan. 31, 2019
Short-term debt $ 876 $ 0
Long-term debt, excluding current maturities 1,076 1,161
Long-term debt, current maturities 158 158
UK    
Short-term debt 332 0
Long-term debt, excluding current maturities 1,076 1,161
Long-term debt, current maturities 158 158
USA    
Short-term debt 544 0
Long-term debt, excluding current maturities 0 0
Long-term debt, current maturities $ 0 $ 0