Accounts Receivable, net (Details - Allowance for Doubtful Accounts) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Receivables [Abstract]
Balance as of January 1	$ 2,820	$ 245
Addition	1,223	2,760
Reversal	(2,216)	(25)
Written off	(59)	(150)
Foreign currency translation difference	(18)	(10)
Balance as of December 31	$ 1,750	$ 2,820