Note 2 - Concentrations of Credit Risk - Sales (Details)	3 Months Ended
Jan. 31, 2025	Jan. 31, 2024
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Wireless Provider A [Member]
Wireless provider	21.00%	0.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 42
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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Data Type:	dtr-types:percentItemType
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Period Type:	duration