Note 3 - Business Combinations (Details) - Unaudited Pro Forma Condensed Financial Information (Integrated Memory Logic Limited [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 29, 2015	Mar. 30, 2014
Integrated Memory Logic Limited [Member]
Note 3 - Business Combinations (Details) - Unaudited Pro Forma Condensed Financial Information [Line Items]
Net sales	$ 172,780	$ 186,290
Net income (loss)	$ (36,207)	$ 5,884
Earnings (loss) per share to common stockholders
Basic	$ (0.77)	$ 0.12
Diluted	$ (0.77)	$ 0.12