Related Party Transactions (Details) (USD $)	3 Months Ended		3 Months Ended					3 Months Ended
	Oct. 27, 2012 Number	Jan. 28, 2012	Oct. 27, 2012 Edwin Garrubbo [Member]	Oct. 29, 2011 Edwin Garrubbo [Member]	Jan. 02, 2011 Comcast [Member]	Oct. 27, 2012 GE [Member]	Jan. 02, 2011 GE [Member]	Oct. 27, 2012 NBCU [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party			$ 652,000	$ 1,064,000
Equity Method Investment, Ownership Percentage in NBCU					51.00%		49.00%
Warrants, Outstanding	6,007,372	6,007,372				6,000,000		7,372
Common Stock Shares Held in Subsidiary								7,141,849
Number of Members Related Party Entitled to Appoint to Board of Directors	2
Minimum Beneficial Ownership to Retain Board Seat								5.00%