Note 18 - Segment and Geographic Information (Details) - Net Sales by End Market (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 28, 2014	Dec. 29, 2013
Segment Reporting Information [Line Items]
Net sales by end market	$ 44,315	$ 30,690	$ 118,193	$ 97,335
Industrial And Embedded Systems [Member]
Segment Reporting Information [Line Items]
Net sales by end market	20,506	18,429	59,029	52,870
High End Consumer [Member]
Segment Reporting Information [Line Items]
Net sales by end market	16,202	68	35,825	419
Infrastructure [Member]
Segment Reporting Information [Line Items]
Net sales by end market	$ 7,607	$ 12,193	$ 23,339	$ 44,046