This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

+ References+ Details

Financial Instruments and Fair Value (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended
	Dec. 28, 2012	Dec. 28, 2012 Recurring Carrying Value	Jun. 29, 2012 Recurring Carrying Value	Dec. 28, 2012 Recurring Carrying Value Money market funds	Dec. 28, 2012 Recurring Carrying Value Investments held by an insurance company	Jun. 29, 2012 Recurring Carrying Value Investments held by an insurance company	Jun. 29, 2012 Recurring Carrying Value U.S. treasuries	Dec. 28, 2012 Recurring Level 1	Jun. 29, 2012 Recurring Level 1	Dec. 28, 2012 Recurring Level 1 Money market funds	Dec. 28, 2012 Recurring Level 1 Investments held by an insurance company	Jun. 29, 2012 Recurring Level 1 Investments held by an insurance company	Jun. 29, 2012 Recurring Level 1 U.S. treasuries	Dec. 28, 2012 Recurring Level 2	Jun. 29, 2012 Recurring Level 2	Dec. 28, 2012 Recurring Level 2 Money market funds	Dec. 28, 2012 Recurring Level 2 Investments held by an insurance company	Jun. 29, 2012 Recurring Level 2 Investments held by an insurance company	Jun. 29, 2012 Recurring Level 2 U.S. treasuries	Dec. 28, 2012 Recurring Level 3	Jun. 29, 2012 Recurring Level 3	Dec. 28, 2012 Recurring Level 3 Money market funds	Dec. 28, 2012 Recurring Level 3 Investments held by an insurance company	Jun. 29, 2012 Recurring Level 3 Investments held by an insurance company	Jun. 29, 2012 Recurring Level 3 U.S. treasuries	Dec. 28, 2012 Recurring Total	Jun. 29, 2012 Recurring Total	Dec. 28, 2012 Recurring Total Money market funds	Dec. 28, 2012 Recurring Total Investments held by an insurance company	Jun. 29, 2012 Recurring Total Investments held by an insurance company	Jun. 29, 2012 Recurring Total U.S. treasuries
Financial instruments and fair value:
Cash equivalents, fair value disclosure				$ 11			$ 5,530			$ 11			$ 5,530			$ 0			$ 0			$ 0			$ 0			$ 11			$ 5,530
Investments, fair value disclosure					6,127	6,127					0	0					6,127	6,127					0	0					6,127	6,127
Assets, fair value disclosure		$ 6,138	$ 11,657					$ 11	$ 5,530					$ 6,127	$ 6,127					$ 0	$ 0					$ 6,138	$ 11,657
Term fair value of assets and liabilities approximate carrying value	1 year