Note 13 - Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Roll Forward]
Beginning balance	$ 9,729	$ 8,230
Additions to current period tax positions	4,115	1,499
Ending balance	$ 13,844	$ 9,729