Note 8 - Long-term Investments (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Other Investments Not Readily Marketable [Table Text Block]

	Amount
	US$(’000)
Balance as of January 1, 2019		35
Exchange translation adjustment		-
Cash investments during the year		32
Balance as of December 31, 2020		67
Exchange translation adjustment		1
Cash investments during the year		2,250
Investments disposed during the year		(38	)
Balance as of December 31, 2021		2,280