Cash and Cash Equivalents	6 Months Ended
Cash and Cash Equivalents	Jun. 29, 2013
Cash And Cash Equivalents [Abstract]
Cash and Cash Equivalents	5. Cash and Cash Equivalents The Company considers all highly liquid investments with an original maturity from date of purchase of three months or less, or highly liquid investments that are readily convertible into known amounts of cash, to be cash equivalents. As of June 29, 2013, the Company’s cash balance was $41.3 million, which was comprised of checking accounts. Additionally, the Company had cash equivalents of $36.8 million, consisting of $35.0 million of U.S. Treasury bills with a maturity of three months or less at the date of purchase and $1.8 million of money market funds. As of December 29, 2012, the Company’s cash balance was $38.0 million, comprised of checking accounts. Additionally, the Company had cash equivalents of $33.6 million, consisting of $32.0 million of U.S. Treasury bills and $1.6 million of money market funds.

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.

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