Note 7 - Other Current Assets, Net - Summary of Other Current Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Short-term loans to unrelated parties	$ 2,653	$ 3,606
Short-term loans interest receivables	115	138
Staff advances for business operations	3	8
Total other current assets	2,771	3,752
Allowance for credit loss	(1,893)	(1,513)
Other current assets, net	$ 878	$ 2,239