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Note 11 - Goodwill and Intangibles (Details Textual) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2022 USD ($) | Mar. 31, 2023 | Dec. 31, 2022
Goodwill, Impairment Loss | $ 0 |  |
Number of Patents Granted |  | 41 |
Impairment of Intangible Assets (Excluding Goodwill), Total | $ 0 |  |
Patents [Member] |  |  |
Finite-Lived Intangible Asset, Useful Life |  |  | 20 years

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