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Stockholders' Equity (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2012	Dec. 30, 2011	Dec. 31, 2010
Stock based compensation expense	$ 2,595	$ 1,361	$ 852
Restricted stock expense	590	466	285
Consultant compensation	23	87	111
Total	$ 3,208	$ 1,914	$ 1,248

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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