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Note 4 - Estimated Amortization Expense (Details) - USD ($)
$ in Thousands
Jul. 31, 2016
Jan. 31, 2016
Computer Software, Intangible Asset [Member]    
2017 remaining $ 492  
2018 576  
2019 52  
2020 7  
Total 1,127  
2017 remaining 330  
2018 418  
Total $ 748 $ 1,073