Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Summary of activities for discontinued operations
Total revenues	$ 0	$ 929
(Loss) income from discontinued operations	0	(162)
Gain on sales of aesthetics business	0	1,149
Income from discontinued operations, before income taxes	0	987
Income tax (benefit) expense	0	883
Income from discontinued operations, net of tax	$ 0	$ 1,870