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Note 1 - Business Activities and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Oct. 31, 2024
Notes Tables |
Schedule of Goodwill [Table Text Block] |
Reporting Unit |  | Reportable Segment |  | Amount |
Cables Unlimited |  | Custom Cabling |  | $ | 382,685 |
Rel-Tech |  | Custom Cabling |  |  | 832,556 |
Schrofftech |  | Custom Cabling |  |  | 1,127,189 |
RF Connector and Cable Assembly |  | RF Connector |  |  | 125,000 |
Microlab |  | RF Connector |  |  | 5,617,139 |
|  |  |  | $ | 8,084,569 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | 2024 |  |  | 2023 |
Amortizable intangible assets: |  |  |  |  |  |  |  |
Non-compete agreement (estimated life five years) |  | $ | 423 |  |  | $ | 423 |
Accumulated amortization |  |  | (423 | ) |  |  | (378 | )
|  |  | - |  |  |  | 45 |
Customer relationships (estimated lives 7 - 15 years) |  |  | 6,058 |  |  |  | 6,058 |
Accumulated amortization |  |  | (3,848 | ) |  |  | (3,461 | )
|  |  | 2,210 |  |  |  | 2,597 |
Backlog (estimated life one - two years) |  |  | 327 |  |  |  | 327 |
Accumulated amortization |  |  | (327 | ) |  |  | (327 | )
|  |  | - |  |  |  | - |
Patents (estimated life 10 - 14 years) |  |  | 368 |  |  |  | 368 |
Accumulated amortization |  |  | (208 | ) |  |  | (176 | )
|  |  | 160 |  |  |  | 192 |
Tradename (estimated life 15 years) |  |  | 1,700 |  |  |  | 1,700 |
Accumulated amortization |  |  | (302 | ) |  |  | (189 | )
|  |  | 1,398 |  |  |  | 1,511 |
Proprietary technology (estimated life 10 years) |  |  | 11,100 |  |  |  | 11,100 |
Accumulated amortization |  |  | (2,960 | ) |  |  | (1,850 | )
|  |  | 8,140 |  |  |  | 9,250 |
Totals |  | $ | 11,908 |  |  | $ | 13,595 |
Non-amortizable intangible assets: |  |  |  |  |  |  |  |
Trademarks |  | $ | 1,174 |  |  | $ | 1,174 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
Year ending |  |  |  |
October 31, |  | Amount |
2025 |  | $ | 1,643 |
2026 |  |  | 1,643 |
2027 |  |  | 1,643 |
2028 |  |  | 1,643 |
2029 |  |  | 1,639 |
Thereafter |  |  | 3,697 |
Total |  | $ | 11,908 |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | 2024 |  |  | 2023 |
Numerators: |  |  |  |  |  |  |  |
Consolidated net loss (A) |  | $ | (6,599,000 | ) |  | $ | (3,078,000 | )
Denominators: |  |  |  |  |  |  |  |
Weighted average shares outstanding for basic earnings per share (B) |  |  | 10,481,835 |  |  |  | 10,283,449 |
Add effects of potentially dilutive securities - assumed exercise of stock options |  |  | - |  |  |  | - |
Weighted average shares outstanding for diluted earnings per share (C) |  |  | 10,481,835 |  |  |  | 10,283,449 |
Basic loss per share (A)/(B) |  | $ | (0.63 | ) |  | $ | (0.30 | )
Diluted loss per share (A)/(C) |  | $ | (0.63 | ) |  | $ | (0.30 | )

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