Income Taxes (Details Textual) (USD $)	3 Months Ended			9 Months Ended
	Sep. 29, 2012	Jun. 30, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Income Taxes (Textual) [Abstract]
Income tax benefit	$ 1,356,000		$ 4,694,000	$ 2,877,000	$ 16,089,000
Income tax provision			4,700,000		16,100,000
Discrete benefit for tax assets		1,400,000
Maximum amount company recognize from unrecognized tax benefit	$ 200,000			$ 200,000