CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Apr. 02, 2016	Mar. 28, 2015	Mar. 29, 2014
Revenue, Net	$ 184,391	$ 159,118	$ 181,167
Sales Revenue, Goods, Net	142,957	111,603	142,054
Sales Revenue, Services, Net	41,434	47,515	39,113
Cost of sales	111,688	104,437	121,296
Cost of Goods Sold	89,169	78,195	100,870
Cost of Services	22,519	26,242	20,426
Gross profit	72,703	54,681	59,871
Operating expenses:
Selling, service and administration	49,753	48,525	51,598
Research, development and engineering	32,400	35,166	37,839
Restructuring costs	2,824	2,069	1,070
Business Combination, Integration Related Costs	194	776	0
Goodwill, Impairment Loss	0	7,889	0
(Gain) loss on sale of property and equipment, net	0	0	(1,301)
Gain on acquisition of Semiconductor Systems business	0	0	(499)
Net operating expenses	85,171	94,425	88,707
Operating (loss) income	(12,468)	(39,744)	(28,836)
Non-operating (expense) income:
Other than temporary impairment of cost based investments	0	4,263	9,703
Interest and other (expense) income, net	195	430	113
Total non-operating (expense) income	195	(3,833)	(9,590)
Income (loss) before income taxes	(12,273)	(43,577)	(38,426)
Provision for (benefit from) income taxes	(16)	234	(92)
Net (loss) income	$ (12,257)	$ (43,811)	$ (38,334)
Net (loss) income per share - basic	$ (0.39)	$ (1.43)	$ (1.28)
Net (loss) income per share - diluted	$ (0.39)	$ (1.43)	$ (1.28)
Weighted average number of shares - basic	31,411	30,611	29,974
Weighted average number of shares - diluted	31,411	30,611	29,974
Cash dividends paid per common share	$ 0	$ 0.24	$ 0.32