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Note 7 - Intangible Assets, Including Goodwill (Details Textual) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Aug. 17, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Amortization of Intangible Assets |  | $ 766 | $ 848 | $ 2,274 | $ 1,959
Public Offering [Member] |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | 3,000,000 |  |  |  |

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