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Note 14 - Net Income (Loss) Per Share (Tables) | 12 Months Ended
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Oct. 31, 2021
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Years ended October 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
Net income (loss) (numerator) |  | $ | 6,610,516 |  |  | $ | (6,121,224 | ) |  | $ | (5,669,321 | )
Shares (denominator) |  |  | 7,587,686 |  |  |  | 7,354,513 |  |  |  | 7,387,141 |
Basic and diluted net income (loss) per share |  | $ | 0.87 |  |  | $ | (0.83 | ) |  | $ | (0.77 | )

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