Note 4 - Accounts Receivable, Net (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Accounts Receivable [Table Text Block]

	As of December 31,
	2021			2020
	US$(’000)			US$(’000)
Accounts receivable		5,675			6,654
Allowance for doubtful accounts		(2,236	)		(4,247	)
Accounts receivable, net		3,439			2,407