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Note 5 - Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2023
Notes Tables  
Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table Text Block]

Beginning balance, January 1, 2023

  $ 81,533  

Changes in fair value

    -  

Additional contingent consideration (1)

    11,490  

Payment of contingent consideration (2)

    (49,286 )

Present value interest accretion

    148  

Ending balance, March 31, 2023

  $ 43,885