Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 01, 2012	Mar. 27, 2011	Apr. 01, 2012	Mar. 27, 2011
Condensed Consolidated Statements Of Operations [Abstract]
Net revenue	$ 60,438	$ 51,234	$ 175,110	$ 147,457
Cost of sales:
Cost of products and services	35,638	26,778	97,693	76,606
Amortization of purchased technology	74	260	445	814
Restructuring charges	65	1,330	1,156	8,987
Total cost of sales	35,777	28,368	99,294	86,407
Gross profit	24,661	22,866	75,816	61,050
Operating expenses:
Research and development	7,129	6,717	20,575	20,061
Selling, general and administrative	14,281	13,592	43,955	39,987
Amortization of intangible assets	52	60	156	183
Restructuring charges	(76)	(1,142)	123	(1,985)
Total operating expenses	21,386	19,227	64,809	58,246
Operating income	3,275	3,639	11,007	2,804
Interest income, net of amortization (accretion) of premium (discount) on investments	225	441	(5)	664
Interest expense				(55)
Income from continuing operations before taxes	3,500	4,080	11,002	3,413
Income tax provision	1,296	1,095	3,604	810
Income from continuing operations	2,204	2,985	7,398	2,603
Income from discontinued operations, net of tax		19		97
Net income	$ 2,204	$ 3,004	$ 7,398	$ 2,700
Earnings per share-basic:
Income from continuing operations	$ 0.05	$ 0.07	$ 0.18	$ 0.06
Income from discontinued operations
Net income	$ 0.05	$ 0.07	$ 0.18	$ 0.06
Weighted average shares outstanding-basic	41,795	43,153	42,258	43,285
Earnings per share-diluted:
Income from continuing operations	$ 0.05	$ 0.07	$ 0.17	$ 0.06
Income from discontinued operations
Net income	$ 0.05	$ 0.07	$ 0.17	$ 0.06
Weighted average shares outstanding-diluted	42,615	43,859	42,937	43,853