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Other Current Assets (Details) - USD ($)
$ in Thousands
Jul. 31, 2020
Jan. 31, 2020
Other Current Assets    
Prepaid maintenance contracts $ 259 $ 144
Prepaid insurance 251 49
Prepaid material and supplies 1,955 1,313
UK factoring (due from HSBC) 1,250 113
Prepaid other 499 414
Other current assets $ 4,214 $ 2,033