Note 20 - Income Tax - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Balance	$ 1,860	$ 323
Release due to expiration of statute of limitations positions of prior years		(94)
Additions based on tax positions of prior years	68	242
Additions based on tax positions of acquired entities		1,389
Decreases based on tax positions of prior years	(133)
Additions based on tax position of current year	21
Settlements	(398)
Decreases based on tax positions of acquired entities	(65)
Balance	$ 1,353	$ 1,860