Relationship with NBCU and GE Equity (Details) (USD $)	0 Months Ended				3 Months Ended	12 Months Ended
	Nov. 17, 2014	May 16, 2013	May 12, 2012	Feb. 25, 2009 board_members demand_registration	Apr. 30, 2011	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013	Mar. 20, 2015	Jan. 02, 2011
Related Party Transaction [Line Items]
Payments of Ordinary Dividends, Preferred Stock and Preference Stock					$ 6,400,000
Current Fiscal Year End Date						--01-31
Class of Warrant or Right, Outstanding							6,000,000
Related Party, Ownership Interest in Company									7.00%
Debt Conversion, Converted Instrument, Warrants or Options Issued						5,058,741
Payments to Acquire Intangible Assets	39,000	2,830,000	4,000,000			0	2,830,000	4,000,000
Finite-Lived Intangible Assets, Accumulated Amortization						18,000	6,830,000
Number of Board Members Appointed by Affiliates who Hold Upper Limit Beneficial Ownership				3
Joint Venture, Minimum Beneficial Ownership Percentage of Partners, Upper Limit				50.00%
Joint Venture, Shares, Beneficial Ownership				8,710,000
Number of Board Members Appointed by Affiliates who Hold Lower Limit Beneficial Ownership				2
Joint Venture, Minimum Beneficial Ownership Percentage of Partners, Lower Limit				10.00%
Joint Venture, Prohibited Asset Purchases by Affiliates, Threshold Percentage				10.00%
Joint Venture, Amended Agreement, Maximum Affiliate Beneficial Ownership Percentage				39.90%
Joint Venture, Affiliate Ownership Threshold to Sell Outstanding Shares				5.00%
Joint Venture, Affiliate Percentage Ownership Threshold to Sell Outstanding Shares, Upper Threshold				90.00%
Joint Venture, Maximum Aggregate Transfer of Beneficial Ownership to Individual, Percentage				10.00%
Joint Venture, Standstill Period, Commencement Anniversary				10 years
Joint Venture, Standstill Period, Period After Affiliate can No Longer Designate Nominees				6 months
Joint Venture, Standstill Period, Expiration of Standstill Period				2 years
Joint Venture, Standstill Period, Expiration, Tender Offer, Percentage				100.00%
Registration Rights Agreement, Number of Aggregate Demand Registrations				4
GE [Member]
Related Party Transaction [Line Items]
Series B Mandatory Redeemable Preferred Stock, Shares, Issued				4,929,266
Class of Warrant or Right, Number of Securities Called by Warrants or Rights				6,000,000
Class of Warrant or Right, Exercise Price of Warrants or Rights				0.75
Payments to Acquire Interest in Joint Venture				3,400,000
Equity Method Investment, Ownership Percentage in NBCU										49.00%
Class of Warrant or Right, Outstanding						0
Common Stock Shares Held in Subsidiary						3,718,767
Number of Members Related Party Entitled to Appoint to Board of Directors						2
NBCU [Member]
Related Party Transaction [Line Items]
Common Stock Shares Held in Subsidiary						7,141,849
Minimum Beneficial Ownership to Retain Board Seat						5.00%
Joint Venture, Maximum Aggregate Transfer of Beneficial Ownership to Individual, Percentage				20.00%
Registration Rights Agreement, Number of Aggregate Demand Registrations				1
Comcast [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage in NBCU										51.00%