Note 4 - Summary of Significant Accounting Policies - Summary of Assets and Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Warrant liabilities (Note 16)	$ 1,280	$ 2,039
Fair Value, Inputs, Level 3 [Member]
Warrant liabilities (Note 16)	$ 1,280
Fair Value, Inputs, Level 2 [Member]
Warrant liabilities (Note 16)		$ 2,039