Note 15 - Share-based Compensation - Share-based Compensation Expense (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Share-based compensation expense	$ 877	$ 1,563
Basic earnings per share (in dollars per share)	$ 0.04	$ 0.08
Diluted earnings per share (in dollars per share)	$ 0.04	$ 0.08
Cost of Sales [Member]
Share-based compensation expense	$ 118	$ 129
Selling, General and Administrative Expenses [Member]
Share-based compensation expense	$ 759	$ 1,434