Note 7 - Other Current Assets, Net - Summary of Other Current Assets, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Short-term loans to unrelated parties	$ 3,606	$ 4,097
Short-term loans interest receivables	138	250
Staff advances for business operations	8	5
Total other current assets	3,752	4,352
Allowance for doubtful accounts	(1,513)	(1,558)
Other current assets, net	$ 2,239	$ 2,794