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Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified
1 Months Ended 3 Months Ended 9 Months Ended
Feb. 29, 2012
Sep. 29, 2012
Oct. 01, 2011
Sep. 29, 2012
Oct. 01, 2011
Summary of activities for discontinued operations          
Total revenues   $ 399 $ 2,535 $ 1,627 $ 8,264
(Loss) income from discontinued operations   (56) 177 (279) 616
Gain on sales of aesthetics business, net 1,100 0 0 2,032 0
(Loss) income before income taxes   (56) 177 870 616
Income tax benefit (expense)   (134) (84) 749 (132)
(Loss) income from discontinued operations, net of tax   $ (190) $ 93 $ 1,619 $ 484