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Note 9 - Stock Options (Tables) | 12 Months Ended
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Oct. 31, 2023
Notes Tables |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | 2023 |  |  | 2022 |
Weighted average volatility |  |  | 54.27 | % |  |  | 53.36 | %
Expected dividends |  |  | 0.00 | % |  |  | 0.00 | %
Expected term (in years) |  |  | 7.0 |  |  |  | 7.0 |
Risk-free interest rate |  |  | 3.78 | % |  |  | 1.47 | %
Weighted average fair value of options granted during the year |  | $ | 3.15 |  |  | $ | 3.77 |
Weighted average fair value of options vested during the year |  | $ | 2.80 |  |  | $ | 2.32 |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | 2023 |  |  | 2022 |
|  | Shares or |  |  | Weighted |  |  | Shares or |  |  | Weighted |
|  | Price Per |  |  | Average |  |  | Price Per |  |  | Average |
|  | Share |  |  | Exercise Price |  |  | Share |  |  | Exercise Price |
Outstanding at beginning of year |  |  | 691,005 |  |  | $ | 5.87 |  |  |  | 618,858 |  |  | $ | 5.33 |
Options granted |  |  | 168,181 |  |  | $ | 5.36 |  |  |  | 145,001 |  |  | $ | 6.94 |
Options exercised |  |  | (45,000 | ) |  | $ | 1.90 |  |  |  | (60,854 | ) |  | $ | 2.45 |
Options canceled or expired |  |  | (60,000 | ) |  | $ | 5.33 |  |  |  | (12,000 | ) |  | $ | 7.58 |
Options outstanding at end of year |  |  | 754,186 |  |  | $ | 6.04 |  |  |  | 691,005 |  |  | $ | 5.87 |
Options exercisable at end of year |  |  | 479,588 |  |  | $ | 6.10 |  |  |  | 366,714 |  |  | $ | 6.13 |
Options vested and expected to vest at end of year |  |  | 748,358 |  |  | $ | 6.13 |  |  |  | 685,154 |  |  | $ | 5.88 |
Option price range at end of year |  | $1.90 - $8.69 |  |  |  |  |  |  | $1.90 - $8.69 |  |  |  |  |
Aggregate intrinsic value of options exercised during year |  | $ | 144,005 |  |  |  |  |  |  | $ | 245,420 |  |  |  |  |
Disclosure of Cash Compensation Payments [Text Block] |
|  | Chair |  |  | Member |
Board |  | $ | 25,000 |  |  |  |  |
Audit Committee |  | $ | 8,000 |  |  | $ | 5,000 |
Compensation Committee |  | $ | 6,000 |  |  | $ | 5,000 |
Nominating and Corporate Governance Committee |  | $ | 4,000 |  |  | $ | 4,000 |
Strategic Planning and Capital Allocation Committee |  | $ | 4,000 |  |  | $ | 4,000 |

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