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Note 8 - Stock-based Compensation and Equity Transactions (Tables) | 9 Months Ended
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Jul. 31, 2023
Notes Tables |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | Nine Months Ended July 31, |
|  | 2023 |  |  | 2022 |
Risk-free interest rate |  |  | 3.76 | % |  |  | 1.47 | %
Dividend yield |  |  | 0.00 | % |  |  | 0.00 | %
Expected life of the option (in years) |  |  | 7.01 |  |  |  | 7.00 |
Volatility factor |  |  | 54.30 | % |  |  | 53.36 | %
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  |  |  |  |  | Weighted |
|  |  |  |  |  | Average |
|  | Shares |  |  | Exercise Price |
Outstanding at November 1, 2022 |  |  | 691,005 |  |  | $ | 5.87 |
Options granted |  |  | 158,181 |  |  | $ | 5.46 |
Options exercised |  |  | (45,000 | ) |  | $ | 1.90 |
Options cancelled |  |  | - |  |  | $ | - |
Options outstanding at July 31, 2023 |  |  | 804,186 |  |  | $ | 6.01 |
Options exercisable at July 31, 2023 |  |  | 471,466 |  |  | $ | 6.34 |
Options vested and expected to vest at July 31, 2023 |  |  | 798,697 |  |  | $ | 6.02 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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