Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Dec. 29, 2013	Dec. 30, 2012
Sales:
Net sales	$ 21,846	$ 22,235	$ 70,682	$ 63,210
Net sales, related party	8,844	8,764	26,653	27,662
Total net sales	30,690	30,999	97,335	90,872
Cost of sales:
Cost of sales	12,393	11,922	36,576	34,846
Cost of sales, related party	3,556	4,005	11,619	12,897
Amortization of purchased intangible assets and inventory step-up	1,898	801	5,346	2,578
Warranty reserve			1,440
Restructuring charges and exit costs	100	600	1,500
Total cost of sales	17,864	16,807	55,103	50,481
Gross profit	12,826	14,192	42,232	40,391
Operating expenses:
Research and development	6,929	5,376	20,263	16,598
Selling, general and administrative	9,086	8,645	26,407	24,066
Net change in fair value of contingent consideration	58		(2,437)
Total operating expenses	16,147	14,545	45,622	42,283
Loss from operations	(3,321)	(353)	(3,390)	(1,892)
Other income and expense, net:
Interest income and other, net	321	586	980	1,906
Interest expense	(39)	(56)	(117)	(128)
Total other income and expense, net	282	530	863	1,778
Income (Loss) before income taxes	(3,039)	177	(2,527)	(114)
Benefit from income taxes	(1,405)	(1,346)	(8,181)	(1,324)
Net income (loss)	$ (1,634)	$ 1,523	$ 5,654	$ 1,210
Net income (loss) per share:
Basic (in Dollars per share)	$ (0.03)	$ 0.03	$ 0.12	$ 0.03
Diluted (in Dollars per share)	$ (0.03)	$ 0.03	$ 0.12	$ 0.03
Shares used in the computation of net income (loss) per share:
Basic (in Shares)	47,529	45,925	47,277	46,228
Diluted (in Shares)	47,529	46,438	48,815	46,623