Note 13 - Income Taxes - Schedule of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federal	$ 0	$ 0	$ 0
State	77	124	53
Foreign	247	83	0
Current Income Tax Expense (Benefit), Total	324	207	53
Federal	0	0	0
State	0	0	0
Total provision	$ 324	$ 207	$ 53