Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Jul. 01, 2012	Jul. 03, 2011
Assets:
Total short-term investments	$ 39,280	$ 43,340
Total financial assets	47,930	55,970
Liabilities:
Contingent Consideration	540
Total financial liabilities	540
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Assets:
Total short-term investments	3,062	3,454
Total financial assets	11,712	16,084
Liabilities:
Contingent Consideration
Total financial liabilities
Significant Other Observable Inputs (Level 2) [Member]
Assets:
Total short-term investments	36,218	39,886
Total financial assets	36,218	39,886
Liabilities:
Contingent Consideration
Total financial liabilities
Significant Other Unobservable Inputs (Level 3) [Member]
Assets:
Total short-term investments
Total financial assets
Liabilities:
Contingent Consideration	540
Total financial liabilities	540
Money Market Funds [Member]
Assets:
Financial assets, fair value	8,650	12,630
Money Market Funds [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Assets:
Financial assets, fair value	8,650	12,630
Money Market Funds [Member] | Significant Other Unobservable Inputs (Level 3) [Member]
Assets:
Financial assets, fair value
Corporate Debt Securities [Member]
Assets:
Financial assets, fair value	23,703	23,430
Corporate Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Financial assets, fair value	23,703	23,430
Corporate Debt Securities [Member] | Significant Other Unobservable Inputs (Level 3) [Member]
Assets:
Financial assets, fair value
US Government Sponsored Enterprises Debt Securities [Member]
Assets:
Financial assets, fair value	12,515	16,456
US Government Sponsored Enterprises Debt Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Financial assets, fair value	12,515	16,456
US Government Sponsored Enterprises Debt Securities [Member] | Significant Other Unobservable Inputs (Level 3) [Member]
Assets:
Financial assets, fair value
Mutual Funds [Member]
Assets:
Financial assets, fair value	3,062	3,454
Mutual Funds [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Assets:
Financial assets, fair value	3,062	3,454
Mutual Funds [Member] | Significant Other Unobservable Inputs (Level 3) [Member]
Assets:
Financial assets, fair value