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Note 6 - Goodwill and Intangible Assets - Future Amortization of Intangible Assets (Details) - USD ($)
$ in Thousands
Jul. 31, 2020
Jan. 31, 2020
2021 remaining $ 130  
2022 260  
2023 260  
2024 148  
Thereafter 0  
Net amortizable intangible assets $ 798 $ 985