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Note 1 - Business Activities and Summary of Significant Accounting Policies - Estimated Amortization Expense (Details) - USD ($)
$ in Thousands
Oct. 31, 2020
Oct. 31, 2019
2021 $ 443  
2022 374  
2023 364  
2024 364  
2025 320  
Thereafter 1,316  
Total $ 3,181 $ 1,092