Note 12 - Taxation - Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Current	$ 0	$ 0	$ 0	$ 0
Deferred	1	2	2	4
Income tax benefit	$ 1	$ 2	$ 2	$ 4