Note 7 - Share-based Compensation - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Stock-based compensation expense	$ 643,570	$ 176,046
Cost of Sales [Member]
Stock-based compensation expense	21,088	0
Research and Development Expense [Member]
Stock-based compensation expense	181,792	0
Selling and Marketing Expense [Member]
Stock-based compensation expense	108,318	0
General and Administrative Expense [Member]
Stock-based compensation expense	$ 332,372	$ 176,046