Note 16 - Segment and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

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

	Year Ended December 31,
	201 8		201 7		201 6
	(in thousands)
China	$	113,684	$	114,168	$	103,071
United States		87,545		92,620		29,976
Japan		7,492		29,061		36,308
Thailand		40,884		45,205		35,837
Other		44,885		67,147		61,085
	$	294,490	$	348,201	$	266,277