Segment Information (Details - intangible assets, long-term investment) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Long-lived assets	$ 70,626	$ 65,642
AUSTRALIA
Long-lived assets	398	577
UNITED STATES
Long-lived assets	46,307	37,021
JAPAN
Long-lived assets	586	1,414
ITALY
Long-lived assets	1,508	1,749
UNITED KINGDOM
Long-lived assets	7,945	9,477
GREECE
Long-lived assets	$ 13,882	$ 15,404