Note 13 - Taxation - Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Current	$ 0	$ 0	$ 0	$ 0
Deferred	2	22	4	40
Income tax benefit	$ 2	$ 22	$ 4	$ 40