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Note 1 - Summary of Business and Significant Accounting Policies - Future Amortization Expense (Details) - USD ($)
$ in Thousands
Jan. 31, 2020
Jan. 31, 2019
2021 $ 984  
2022 643  
2023 280  
2024 15  
Thereafter  
Capitalized Computer Software, Net, Ending Balance $ 1,922 $ 1,598