Note 8 - Income Taxes - Schedule of Income Before Income Tax Domestic and Foreign (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
U.S.	$ (820)	$ (851)
Foreign	(1,422)	(1,038)
Loss before income taxes	$ (2,242)	$ (1,889)