Stock-Based Compensation (Stock Option Transactions for Common Stock) (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	9 Months Ended
	Nov. 01, 2014
Employee Stock Option
Number of Shares
Outstanding as of February 2, 2014	377
Granted	2,030
Exercised	0
Canceled	(110)
Outstanding as of November 1, 2014	2,297
Options vested and expected to vest (in shares)	2,297
Exercisable (in shares)	262
Weighted Average Exercise Price
Outstanding as of February 2, 2014	$ 16.61
Granted	$ 3.24
Exercised	$ 0.00
Canceled	$ 13.84
Outstanding as of November 1, 2014	$ 4.93
Weighted average exercise price, options vested and expected to vest (in dollars per share)	$ 4.93
Weighted average exercisable (in dollars per share)	$ 17.78
Weighted-Average Remaining Contractual Term
Outstanding as of November 1, 2014	2 years 7 months 17 days
Options vested as of November 1, 2014 and expected to vest	2 years 7 months 17 days
Exercisable as of November 1, 2014	9 months
Aggregate Intrinsic Value
Outstanding as of November 1, 2014	$ 0
Options vested as of November 1, 2014 and expected to vest	0
Exercisable as of November 1, 2014	$ 0
Non-vested Stock Options
Number of Shares
Outstanding as of February 2, 2014	10
Granted	2,030
Vested	0
Canceled	(5)
Outstanding as of November 1, 2014	2,035
Weighted Average Exercise Price
Outstanding as of February 2, 2014	$ 6.41
Granted	$ 3.24
Vested	$ 0.00
Canceled	$ 6.43
Outstanding as of November 1, 2014	$ 3.25