Note 6 - Income (Loss) Per Share - Schedule of Earnings Per Share (Details) - shares |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jul. 31, 2026 |
Jul. 31, 2025 |
Jul. 31, 2026 |
Jul. 31, 2025 |
|
| Basic (in shares) | 10,850,483 | 10,668,375 | 10,806,219 | 10,632,566 |
| Add effects of potentially dilutive securities-assumed exercise of stock options (in shares) | 749,816 | 105,929 | 591,352 | 0 |
| Weighted average shares outstanding for diluted earnings per share (in shares) | 11,600,299 | 10,774,304 | 11,397,571 | 10,632,566 |
| X | ||||||||||
- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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