Note 15 - Stockholders Equity - Stock-based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Total stock-based compensation	$ 481	$ 443
Cost of Sales [Member]
Total stock-based compensation	15	8
Selling and Marketing Expense [Member]
Total stock-based compensation	109	175
General and Administrative Expense [Member]
Total stock-based compensation	300	229
Research and Development Expense [Member]
Total stock-based compensation	$ 57	$ 31