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Note 15 - Shareholders' Equity (Tables) | 12 Months Ended
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Oct. 31, 2020
Notes Tables |
Schedule of Share Repurchases [Table Text Block] |
Fiscal years ended October 31, |  | Shares repurchased |  |  | Cost |
2020 |  |  | — |  |  | $ | — |
2019 |  |  | 351 |  |  |  | 1,573 |
2018 |  |  | 272 |  |  |  | 1,557 |

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