Stockholders' Equity and Stock Based Compensation (Details 2) (Options, USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended
Jun. 30, 2013	Jun. 28, 2013
Options
Number of Options
Outstanding at the beginning of the period (in shares)	310,640
Outstanding at the end of the period (in shares)	310,640
Exercisable at the end of the period (in shares)	310,640
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 8.65
Outstanding at the end of the period (in dollars per share)	$ 8.65
Exercisable at the end of the period (in dollars per share)	$ 8.65
Weighted Average Remaining Contractual Term
Outstanding at the end of the period	1 year 1 month 6 days
Exercisable at the end of the period	1 year 1 month 6 days
Aggregate Intrinsic Value
Aggregate intrinsic value of options outstanding	$ 1.0
Aggregate intrinsic value of options exercisable	$ 1.0
Market value (in dollars per share)		$ 11.58

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Price of a single share of a number of saleable stocks of a company.

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