Note 6 - Acquisition-related Items (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Acquisition Related Expenses [Table Text Block]

	Year ended December 31,
	2021		2020
Transaction costs	$	13,030	$	16,169
Contingent consideration fair value adjustments (note 24)		42,686		23,393
Contingent consideration compensation expense		5,292		6,286
	$	61,008	$	45,848