Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012
Statements Of Operations [Abstract]
Net revenues	$ 30,366	$ 33,378	$ 97,548	$ 99,191
Cost of revenues	19,521	21,789	61,597	64,088
Gross profit	10,845	11,589	35,951	35,103
Operating expenses:
Research and development	5,277	5,669	15,697	16,262
Selling, general and administrative	7,193	7,114	22,364	21,513
Total operating expenses	12,470	12,783	38,061	37,775
Loss from operations	(1,625)	(1,194)	(2,110)	(2,672)
Interest and other income, net	1,318	847	2,748	2,555
Income (loss) before income taxes	(307)	(347)	638	(117)
Income tax expense (benefit)	395	(76)	5,652	123
Loss from consolidated companies	(702)	(271)	(5,014)	(240)
Equity in net income of unconsolidated affiliates	21	4	186	83
Net loss	$ (681)	$ (267)	$ (4,828)	$ (157)
Basic Loss per share	$ (0.03)	$ (0.01)	$ (0.21)	$ (0.01)
Diluted Loss per share	$ (0.03)	$ (0.01)	$ (0.21)	$ (0.01)
Shares used in computing basic loss per share	23,162	24,030	23,407	24,255
Shares used in computing diluted loss per share	23,162	24,030	23,407	24,255