Related Party Transactions (Details)			3 Months Ended		6 Months Ended
	Apr. 30, 2016 board_members	Feb. 25, 2009 board_members shares	Jul. 30, 2016 USD ($) shares	Aug. 01, 2015 USD ($)	Jul. 30, 2016 USD ($) shares	Aug. 01, 2015 USD ($)	Oct. 15, 2015 $ / shares shares	Jul. 10, 2015
Related Party Transaction [Line Items]
Document Period End Date					Jul. 30, 2016
Current Fiscal Year End Date					--01-28
Number of Board Members Appointed by Affiliates who Hold Upper Limit Beneficial Ownership | board_members	1	3
Related Party, Ownership Interest in Company								4.99%
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 | board_members		2
Joint Venture, Minimum Beneficial Ownership Percentage of Partners, Lower Limit		10.00%
Joint Venture, Affiliate Ownership Percentage Threshold to Sell Outstanding Shares, Lower Threshold		5.00%
Joint Venture, Affiliate Percentage Ownership Threshold to Sell Outstanding Shares, Upper Threshold		90.00%
GE [Member]
Related Party Transaction [Line Items]
Common Stock Shares Held in Subsidiary							3,545,049
Sale of Stock, Price Per Share | $ / shares							$ 2.15
NBCU [Member]
Related Party Transaction [Line Items]
Common Stock Shares Held in Subsidiary			7,141,849		7,141,849
Minimum Beneficial Ownership to Retain Board Seat	5.00%
Related Party, Ownership Interest in Company			12.50%		12.50%
Joint Venture, Maximum Aggregate Transfer of Beneficial Ownership to Individual, Percentage		20.00%
On Air Food Supplier [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Purchases from Related Party | $			$ 354,000	$ 681,000	$ 1,223,000	$ 764,000
Newgistics, Inc. [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Purchases from Related Party | $			$ 1,069,000	$ 1,101,000	$ 2,534,000	$ 2,411,000