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Note 5 - Goodwill and Intangible Assets (Details Textual) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year $ 5.6   $ 5.6  
Finite-Lived Intangible Asset, Expected Amortization, Year One 5.1   5.1  
Finite-Lived Intangible Asset, Expected Amortization, Year Two 4.8   4.8  
Finite-Lived Intangible Asset, Expected Amortization, Year Three 4.7   4.7  
Finite-Lived Intangible Asset, Expected Amortization, Year Four 3.9   3.9  
Finite-Lived Intangible Asset, Expected Amortization, Year Five 3.9   3.9  
Amortization of Intangible Assets $ 1.5 $ 1.1 $ 4.6 $ 3.3