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Note 6 - Fair Value of Financial Instruments - Financial Assets Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Recurring [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Accrued contingent consideration (earn-out) $ 17,421 $ 14,568
Present value of non-competition payments $ (7,903) $ (10,043)