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Note F - Acquisition - Summary of Estimated Fair Values of Acquired Assets (Details) - USD ($) | Sep. 30, 2018 | Feb. 20, 2018 | Sep. 30, 2017
--- | --- | --- | ---
Goodwill | $ 4,708,511 |  | $ 2,570,511
Calix, Inc. [Member] |  |  |
Inventories |  | $ 2,781,000 |
Property, plant and equipment |  | 58,000 |
Goodwill |  | 2,138,000 |
Total Assets |  | 10,350,000 |
Calix, Inc. [Member] | Trademarks [Member] |  |  |
Finite-lived intangible assets |  | 563,000 |
Calix, Inc. [Member] | Customer Relationships [Member] |  |  |
Finite-lived intangible assets |  | 3,742,000 |
Calix, Inc. [Member] | Certification Marks [Member] |  |  |
Finite-lived intangible assets |  | $ 1,068,000 |

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