Note 18 - Segment and Geographic Information (Details) - Net Sales by End Market (USD $) In Thousands, unless otherwise specified	3 Months Ended
Jun. 29, 2014	Jun. 30, 2013
Segment Reporting Information [Line Items]
Total net sales by end market	$ 30,719	$ 32,627
Industrial And Embedded Systems [Member]
Segment Reporting Information [Line Items]
Total net sales by end market	18,867	16,498
Communications Infrastructure [Member]
Segment Reporting Information [Line Items]
Total net sales by end market	5,090	5,976
High End Consumer [Member]
Segment Reporting Information [Line Items]
Total net sales by end market	3,424	246
Networking And Storage [Member]
Segment Reporting Information [Line Items]
Total net sales by end market	$ 3,338	$ 9,907

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

Name:	us-gaap_Revenues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration