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Note 2 - Concentrations of Credit Risk (Tables)

3 Months Ended

Jan. 31, 2026

Notes Tables

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

		Three Months Ended January 31,
		2026				2025
Aerospace customer			11	%			-
Wireless provider A			-				21	%

		Three Months Ended January 31,
		2026				2025
Aerospace customer			17	%			-
Wireless provider A			-				21	%
Wireless provider B			19	%			10	%

X

- Definition

Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-18

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-20

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Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration