CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013
Goodwill, Impairment Loss	$ 7,889	$ 0	$ 0
Net sales	159,118	181,167	216,625
Sales Revenue, Goods, Net	111,603	142,054	183,531
Sales Revenue, Services, Net	47,515	39,113	33,094
Cost of sales	104,437	121,296	155,337
Cost of Goods Sold	78,195	100,870	133,141
Cost of Services	26,242	20,426	22,196
Gross profit	54,681	59,871	61,288
Operating expenses:
Selling, service and administration	49,301	51,598	53,086
Research, development and engineering	35,166	37,839	37,196
Restructuring costs	2,069	1,070	2,612
(Gain) loss on sale of property and equipment, net	0	(1,301)	(1,226)
Gain on acquisition of Semiconductor Systems business	0	(499)	0
Legal settlement (proceeds) costs, net	0	0	(15,262)
Net operating expenses	94,425	88,707	76,406
Operating (loss) income	(39,744)	(28,836)	(15,118)
Non-operating (expense) income:
Other than temporary impairment of cost based investments	(4,263)	(9,703)	0
Interest and other (expense) income, net	430	113	253
Total non-operating (expense) income	(3,833)	(9,590)	253
Income (loss) before income taxes	(43,577)	(38,426)	(14,865)
Provision for (benefit from) income taxes	234	(92)	39,851
Net (loss) income	$ (43,811)	$ (38,334)	$ (54,716)
Net (loss) income per share - basic	$ (1.43)	$ (1.28)	$ (1.86)
Net (loss) income per share - diluted	$ (1.43)	$ (1.28)	$ (1.86)
Weighted average number of shares - basic	30,611	29,974	29,357
Weighted average number of shares - diluted	30,611	29,974	29,357
Cash dividends paid per common share	$ 0.24	$ 0.32	$ 2.32