CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 26, 2015	Sep. 27, 2014	Sep. 26, 2015	Sep. 27, 2014
Sales Revenue, Goods, Net	$ 35,570	$ 30,273	$ 67,632	$ 53,697
Sales Revenue, Services, Net	10,902	12,583	21,931	24,189
Net sales	46,472	42,856	89,563	77,886
Cost of Goods Sold	22,345	20,742	43,630	37,676
Cost of Services	5,706	7,349	12,135	13,157
Cost of sales	28,051	28,091	55,765	50,833
Gross profit	18,421	14,765	33,798	27,053
Operating expenses:
Selling, service and administration	12,534	11,899	25,151	24,052
Research, development and engineering	8,283	8,424	16,928	17,569
Business Combination, Integration Related Costs	40	0	194	0
Restructuring Charges	591	0	653	0
Net operating expenses	21,448	20,323	42,926	41,621
Operating (loss) income	(3,027)	(5,558)	(9,128)	(14,568)
Non-operating (expense) income:
Interest and other (expense) income, net	6	(244)	1	(198)
Other Nonoperating Income (Expense)	6	(244)	1	(198)
Income (loss) before income taxes	(3,021)	(5,802)	(9,127)	(14,766)
Provision for (benefit from) income taxes	239	441	497	(272)
Net (loss) income	$ (3,260)	$ (6,243)	$ (9,624)	$ (14,494)
Net (loss) income per share - basic	$ (0.10)	$ (0.20)	$ (0.31)	$ (0.48)
Net (loss) income per share - diluted	$ (0.10)	$ (0.20)	$ (0.31)	$ (0.48)
Weighted average number of shares - basic	31,384	30,552	31,280	30,452
Weighted average number of shares - diluted	31,384	30,552	31,280	30,452
Cash dividends paid per common share	$ 0	$ 0.08	$ 0	$ 0.16