Note 1 - Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Estimated Useful Lives of Long-lived Assets [Table Text Block]

Asset Category	Years
Office equipment			3
Software			3
Leasehold improvements		Shorter of lease term or estimated useful life
Production equipment		2	-	5
Computer equipment			5
Lab equipment			5
Furniture and fixtures			7

Disaggregation of Revenue [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