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v3.25.3

Note 3 - Business Acquisition (Details Textual) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Aug. 01, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Aug. 31, 2025
Payments to Acquire Businesses, Gross |  | $ 1,750,000 | $ (0) |
Goodwill |  | 1,258,000 | 736,000 |
Geovox [Member] |  |  |  |
BusinessCombination, ConsiderationTransferred, Cash Value | $ 1,700,000 |  |  |
Payments to Acquire Businesses, Gross | 1,500,000 |  |  |
Business Combination, Consideration Transferred, Liabilities Incurred | 200,000 |  |  |
Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount | $ 3,300,000 |  |  | $ 3,300,000
Business Combination, Contingent Consideration, Earn Out Period (Year) | 4 years |  |  |
Goodwill | $ 500,000 |  |  | 500,000
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill | 3,700,000 |  |  | 3,700,000
Business Combination, Contingent Consideration, Liability | $ 2,500,000 | 2,540,000 | $ 0 | $ 2,500,000
Professional Fees |  | $ 35,000 |  |

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