Note 15 - Segment and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	Year Ended December 31,
	2019		2018		2017
	(in thousands)
China	$	164,715	$	113,684	$	114,168
United States		103,402		87,545		92,620
Thailand		54,468		40,884		45,205
Other		43,050		52,377		96,208
	$	365,635	$	294,490	$	348,201