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Note 9 - Stock Options (Tables) | 12 Months Ended
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Oct. 31, 2022
Notes Tables |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | 2022 |  |  | 2021 |
Weighted average volatility |  |  | 53.36 | % |  |  | 52.34 | %
Expected dividends |  |  | 0.00 | % |  |  | 0.00 | %
Expected term (in years) |  |  | 7.0 |  |  |  | 7.0 |
Risk-free interest rate |  |  | 1.47 | % |  |  | 0.58 | %
Weighted average fair value of options granted during the year |  | $ | 3.77 |  |  | $ | 3.38 |
Weighted average fair value of options vested during the year |  | $ | 2.32 |  |  | $ | 3.41 |
Share-Based Payment Arrangement, Option, Activity [Table Text Block] |
|  | 2022 |  |  | 2021 |
|  | Shares or |  |  | Weighted |  |  | Shares or |  |  | Weighted |
|  | Price Per |  |  | Average |  |  | Price Per |  |  | Average |
|  | Share |  |  | Exercise Price |  |  | Share |  |  | Exercise Price |
Outstanding at beginning of year |  |  | 618,858 |  |  | $ | 5.33 |  |  |  | 789,179 |  |  | $ | 4.66 |
Options granted |  |  | 145,001 |  |  | $ | 6.94 |  |  |  | 117,000 |  |  | $ | 6.57 |
Options exercised |  |  | (60,854 | ) |  | $ | 2.45 |  |  |  | (195,528 | ) |  | $ | 3.10 |
Options canceled or expired |  |  | (12,000 | ) |  | $ | 7.58 |  |  |  | (91,793 | ) |  | $ | 5.88 |
Options outstanding at end of year |  |  | 691,005 |  |  | $ | 5.87 |  |  |  | 618,858 |  |  | $ | 5.33 |
Options exercisable at end of year |  |  | 366,714 |  |  | $ | 6.13 |  |  |  | 313,381 |  |  | $ | 5.95 |
Options vested and expected to vest at end of year |  |  | 685,154 |  |  | $ | 5.88 |  |  |  | 618,522 |  |  | $ | 5.35 |
Option price range at end of year |  | $1.90 - $8.69 |  |  |  |  |  |  | $1.90 - $8.69 |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  | $ |  |  |  |  |
Aggregate intrinsic value of options exercised during year |  | $ | 245,420 |  |  |  |  |  |  | $ | 642,181 |  |  |  |  |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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