Note 8 - Income Taxes - Schedule of Income Before Income Tax Domestic and Foreign (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
U.S.	$ (851)	$ (8,225)
Foreign	(1,038)	(940)
Loss before income taxes	$ (1,889)	$ (9,165)