CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016
Sales Revenue, Goods, Net	$ 99,418	$ 25,427	$ 221,827	$ 85,069
Sales Revenue, Services, Net	11,422	8,352	32,664	26,036
Net sales	110,840	33,779	254,491	111,105
Cost of Goods Sold	52,502	17,283	132,107	53,851
Cost of Services	5,182	5,048	16,276	14,018
Cost of sales	57,684	22,331	148,383	67,869
Gross profit	53,156	11,448	106,108	43,236
Operating expenses:
Selling, service and administration	11,040	13,280	35,496	38,917
Research, development and engineering	8,165	7,868	25,373	23,258
Business Combination, Integration Related Costs	0	31	0	366
Restructuring Costs	706	321	4,079	321
Net operating expenses	19,911	21,500	64,948	62,862
Operating (loss) income	33,245	(10,052)	41,160	(19,626)
Non-operating (expense) income:
Interest and other (expense) income, net	789	34	376	162
Other Nonoperating Income (Expense)	789	34	376	162
Income (loss) before income taxes	34,034	(10,018)	41,536	(19,464)
Provision for (benefit from) income taxes	61	(325)	401	22
Net (loss) income	$ 33,973	$ (9,693)	$ 41,135	$ (19,486)
Net (loss) income per share - basic	$ 0.99	$ (0.29)	$ 1.22	$ (0.60)
Net (loss) income per share - diluted	$ 0.94	$ (0.29)	$ 1.16	$ (0.60)
Weighted average number of shares - basic	34,224	32,919	33,839	32,379
Weighted average number of shares - diluted	36,010	32,919	35,562	32,379