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Note 3 - Fair Value of Financial Instruments - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Fair Value, Inputs, Level 2 [Member]    
Cash surrender value life insurance policies $ 3,262 $ 2,424
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]    
Interest rate swaps 782 1,101
Fair Value, Inputs, Level 3 [Member]    
Contingent consideration $ (20,836) $ (21,802)