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Note 6 - Goodwill and Intangible Assets - Future Amortization of Intangible Assets (Details) - USD ($)
$ in Thousands
Oct. 31, 2019
Jan. 31, 2019
2020 remaining $ 67  
2021 270  
2022 270  
2023 270  
Thereafter 153  
Net amortizable intangible assets $ 1,030 $ 1,233