Note 14 - Segment and Geographical Information (Tables)

12 Months Ended

Jan. 28, 2017

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Fiscal Years Ended
	January 28, 2017		January 30, 2016		January 31, 2015
Connected Smart TV Platforms	$	175,085	$	180,360	$	151,775
IoT Devices		45,159		46,792		30,667
License and other		300		98		5,871
Net revenue	$	220,544	$	227,250	$	188,313

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	Fiscal Years Ended
	January 28, 2017		January 30, 2016		January 31, 2015
Asia	$	180,104	$	172,773	$	152,571
North America		32,732		42,335		20,746
Europe		7,692		10,292		12,012
Other Regions		16		1,850		2,984
Net revenue	$	220,544	$	227,250	$	188,313

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

	Fiscal Years Ended
	January 28, 2017		January 30, 2016
United States	$	11,923	$	5,885
Singapore		3,917		5,388
All other countries		2,683		2,813
Total long-lived assets	$	18,523	$	14,086

Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]

	Fiscal Years Ended
	January 28, 2017			January 30, 2016			January 31, 2015
Sunjet Components Corps		20	%		16	%		*
Silicon Application		13	%		*			*
Arris Global		14	%		*			*
Benchmark Electronics		*			*			13	%

Geographic Concentration Risk [Member]

Notes Tables

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	Fiscal Years Ended
	January 28, 2017		January 30, 2016		January 31, 2015
China, including Hong Kong	$	110,195	$	93,560	$	70,513
Taiwan		51,093		50,301		24,346
United States		32,367		41,781		20,587
Thailand		9,487		13,532		40,703
Rest of the world		17,402		28,076		32,164
Net revenue	$	220,544	$	227,250	$	188,313