Note 7 - Other Current Assets, Net - Summary of Other Current Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Consideration receivable related to sales of equity interest in an investee entity	$ 250	$ 0
Short-term loans to unrelated parties	3,606	4,097
Short-term loans interest receivables	73	250
Staff advances for business operations	7	5
Total other current assets	3,936	4,352
Allowance for credit loss	(1,524)	(1,558)
Other current assets, net	$ 2,412	$ 2,794