Note 9 - Income Taxes - Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Federal, current	$ (1,555)	$ (215)
State, current	168	141
Foreign, current	2,472	3,687
Current	1,085	3,613
Federal, deferred	(1,412)	(2,222)
State, deferred	(151)	(135)
Foreign, deferred	(181)	185
Deferred	(1,744)	(2,172)
Income Tax Expense (Benefit), Total	$ (659)	$ 1,441