Note 19. Segment and Geographic Information (Detail) - Net Sales by End Market (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Mar. 27, 2011
Net sales	$ 122,026	$ 130,566	$ 146,005
Industrial And Embedded Systems [Member]
Net sales	63,396	66,602	65,702
Networking And Storage [Member]
Net sales	32,737	27,005	32,121
Communications Infrastructure [Member]
Net sales	24,965	35,829	46,722
Other Markets [Member]
Net sales	$ 928	$ 1,130	$ 1,460