Note 9 - Net Income (Loss) Per Share - Components of Reconciliation of Numerators and Denominators Net Loss Per Share (Details) - USD ($)	3 Months Ended	6 Months Ended
Apr. 30, 2026	Jan. 31, 2026	Apr. 30, 2025	Jan. 31, 2025	Apr. 30, 2026	Apr. 30, 2025
Net income (loss) (numerator)	$ 1,054,817	$ (397,529)	$ (697,922)	$ (1,107,431)	$ 657,288	$ (1,805,353)
Shares (denominator) (in shares)	8,831,598		7,798,366		8,850,008	7,810,179
Net income (loss) per share: Basic and diluted (in dollars per share)	$ 0.12		$ (0.09)		$ 0.07	$ (0.23)

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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Reference 52: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 65
-Paragraph 4
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-URI https://asc.fasb.org/1943274/2147481538/470-20-65-4

Reference 53: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 220
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(22))
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-URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1

+ Details