Note 17 - Geographic Information (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Revenue from External Customers by Geographic Areas [Table Text Block]

	Three months ended September 30,				Nine months ended September 30,
	2021		2020		2021		2020
Revenues:
United States	$	4,547	$	4,887	$	11,451	$	13,383
Taiwan		19,562		45,821		75,282		105,196
China		29,158		25,900		70,424		63,719
	$	53,267	$	76,608	$	157,157	$	182,298

Long-lived Assets by Geographic Areas [Table Text Block]

	As of the period ended
	September 30,		December 31,
	2021		2020
Long-lived assets:
United States	$	87,241	$	90,999
Taiwan		65,394		71,080
China		106,826		108,575
	$	259,461	$	270,654