Note 7 - Income Taxes - Components of Income (Loss) Before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Domestic	$ (1,663)	$ (4,917)
Foreign	3,153	(680)
Income (loss) before income taxes	$ 1,490	$ (5,597)