Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2011	Oct. 01, 2010	Sep. 30, 2011	Oct. 01, 2010	Mar. 30, 2012	Apr. 01, 2011
Income Taxes (Textuals) [Abstract]
Estimated annual effective income tax rate					54.80%
Annual effective income tax rate						0.00%
Increase in gross unrecognized tax benefits	$ 2,200,000		$ 3,100,000
Reasonably possible decrease in unrecognized tax benefits in the next twelve months	3,100,000		3,100,000
Income tax benefit	$ (3,411,000)	$ 4,385,000	$ (3,678,000)	$ 6,366,000