Note 8 - Goodwill (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Oct. 01, 2021	Dec. 01, 2020	Dec. 31, 2019
Goodwill, Ending Balance	$ 110,247	$ 121,130	$ 7,900	$ 39,000	$ 82,104
Goodwill, Impairment Loss	$ 0	$ 0
PWI [Member]
Goodwill, Ending Balance				$ 18,800

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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