Note 19 - Segment and Geographic Information (Tables)

12 Months Ended

Mar. 29, 2015

Segment Reporting [Abstract]

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

	Fiscal Years Ended
	March 29, 2015		March 30, 2014		March 31, 2013
Industrial & Embedded Systems	$	79,050	$	72,458	$	63,396
High-End Consumer		51,897		462		928
Infrastructure		31,103		52,402		57,702
Total net sales	$	162,050	$	125,322	$	122,026

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

	Fiscal Years Ended
	March 29, 2015		March 30, 2014		March 31, 2013
China	$	62,085	$	43,537	$	41,118
United States		23,479		37,079		32,322
Taiwan		17,955		3,397		4,347
Korea		15,833		3,337		3,346
Singapore		15,361		13,397		13,827
Germany		11,257		11,270		11,692
Rest of world		16,080		13,305		15,374
Total net sales	$	162,050	$	125,322	$	122,026

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

	Fiscal Years Ended
	March 29, 2015			March 30, 2014			March 31, 2013
Distributor A		22	%		27	%		30	%
Distributor B		*	%		21	%		11	%
Distributor C		*	%		12	%		10	%

Schedule Of Major Distributors [Table Text Block]

	March 29, 2015			March 30, 2014
Distributor E		12	%		*
Distributor B		11	%		17	%
Distributor D		10	%		14	%
Customer D		10	%		*
Distributor A		*			16	%
Distributor C		*			12	%