Note 17 - Income Taxes - Components of Income Before Taxes and Provision for (Benefit from) Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Domestic	$ (2,529)	$ (25,722)	$ 38,299
Foreign	4,956	(2,902)	(2,178)
Income before income taxes	2,427	(28,624)	36,121
Federal	494	357	6,245
State	(635)	(1,970)	1,884
Foreign	167	49	202
Total current	26	(1,564)	8,331
Federal	(553)	(1,980)	1,086
State	(426)	(1,070)	324
Foreign	(754)	(28)	(813)
Total deferred	(1,733)	(3,078)	597
Total (benefit from) provision for income taxes	$ (1,707)	$ (4,642)	$ 8,928