Note 8 - Long-term Investments - Summary of Long-term Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Balance, Equity Securities	$ 794	$ 1,596
Exchange translation adjustment		(7)
Cash investments during the year	2	64
Disposed during the year	(397)	(426)
Impairment losses provided during the year		(433)
Impairment on long-term investments	(2)	(433)
Balance, Equity Securities	$ 397	$ 794