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Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
	Jul. 03, 2010	Jul. 02, 2011	Dec. 31, 2010	Apr. 03, 2010
Significant Accounting Policies
Increase in retained earnings			$ 2,654	$ 2,773
Increase (decrease) in net earnings due to changes made to the provision for income tax expenses	$ (24)		$ 95
Number of continuous statements required to be presented by the entity to reflect the components of other comprehensive income and of net income		1
Number of separate consecutive statements required to be presented by the entity to reflect the components of other comprehensive income and of net income		2

Net of tax adjustment in the annual report for the year in which a restatement is made, of the resulting effects on the net income of prior periods on the beginning balance of retained earnings for the current period.

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- Definition

Resulting effect of restatement to correct an error, after tax effects, on the net income of prior periods for the year in which any adjustments are first made. In statements containing more than one period, discloses the effects for each period.

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