Note 9 - Income Taxes - Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Federal, current	$ (215)	$ (3,517)
State, current	141	152
Foreign, current	3,687	3,782
Current	3,613	417
Federal, deferred	(2,222)	2,895
State, deferred	(135)	196
Foreign, deferred	185	(601)
Deferred	(2,172)	2,490
	$ 1,441	$ 2,907