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Note 9 - Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Sep. 30, 2023
--- | --- | ---
Intangible assets, gross carrying amount | $ 17,239 | $ 14,620
Accumulated amortization | (6,873) | (6,193)
Finite-Lived Intangible Assets, Net | 10,366 | 8,427
Developed Technology Rights [Member] |  |
Intangible assets, gross carrying amount | 14,246 | 11,930
Customer Relationships [Member] |  |
Intangible assets, gross carrying amount | 2,075 | 1,790
Trade Names [Member] |  |
Intangible assets, gross carrying amount | 614 | 605
Noncompete Agreements [Member] |  |
Intangible assets, gross carrying amount |  | 223
Patents [Member] |  |
Intangible assets, gross carrying amount | $ 72 | $ 72

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