CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 30, 2012	Mar. 25, 2011	Mar. 26, 2010
Revenue:
Product	$ 35,083	$ 45,909	$ 58,142
Service and other	15,069	14,238	16,352
Total revenue	50,152	60,147	74,494
Costs of revenue:
Cost of product revenue	25,286	24,396	27,934
Cost of service and other revenue	8,159	11,000	13,958
Total cost of revenue	33,445	35,396	41,892
Gross margin	16,707	24,751	32,602
Operating expenses:
Sales and marketing	18,709	19,582	19,647
Research and development	18,951	19,212	19,229
General and administrative	9,401	10,514	11,824
Restructure and other costs	1,435	281	17
Total operating expenses	48,496	49,589	50,717
Loss from operations	(31,789)	(24,838)	(18,115)
Interest income	293	888	1,514
Interest expense	(2,210)	(2,215)	(2,271)
Other income (expense), net	(359)	(2)	1,101
Loss before taxes	(34,065)	(26,167)	(17,771)
Income tax provision	78	131	72
Net loss	$ (34,143)	$ (26,298)	$ (17,843)
Basic and diluted net loss per share (in dollars per share)	$ (1.12)	$ (0.88)	$ (0.61)
Common and common equivalent shares, basic and diluted (in shares)	30,434	29,924	29,178